Six methods of daily maintenance of stainless steel doors

Stainless steel door is a common door of the home, but how to carry out maintenance of stainless steel doors and make its life longer is not known by most housewives, the following is the introduction of how to maintain the stainless steel door.

1.Do not hang heavy items or avoid carved touch with sharp objects, when open or close the door, do not overexert or the opening angle is too large, so as not to damage the stainless steel security door.
2.Do not use with water stains (or other solution) of the hand to open the door of stainless steel door lock, so as not to change the door lock. When opening the door lock or turning the handle of the door lock, do not force too much, so as to reduce the service life of the door lock. when hingeslocks and other activities of hardware accessories become loose, tighten immediately. When the stainless steel door is ineffective to open, can adding foam pencil to the key hole.
3.When wiping the glass, don't make detergent or water into the gap of the glass, so as to avoid layering deformation. Do not force too much, so as not to damage the glass and personal injury. Broken glass or a big bump, be sure to repair by the professional maintenance personnel.
4.Clear the stainless steel entry door surface stains (such as fingerprints), can be used wet breathe, wipe with a soft cloth, with a hard cloth is easy to scratch the surface stains too, can use a neutral detergent, toothpaste or furniture special cleaning agent, decontamination, immediately wipe clean. Stainless steel door edges and corners do not often friction, so as to avoid the edges and corners of the facing material fade damage. When removing the dust on the stainless steel products, it is inconvenient to use the soft cotton cloth to erase, and the vacuum cleaner can be used for cleaning. In order to keep the surface gloss and service life of the stainless steel door, cleaning and dust removal should be regularly carried out, which can be used to protect the surface of stainless steel.
5.In spring and winter, we must pay attention to indoor ventilation, maintain indoor humidity, make the stainless steel door at room temperature and humidity under normal, prevent stainless steel products due to humidity and temperature difference is too large and the deformation of metal parts come off the rust, edge, decorative materials. Use electric heating or other heating equipment in winter, should be far away from the stainless steel products, so as not to heat deformation.
6.When painting the walls, the stainless steel door should be covered, so as not to paint off the surface of the product, so that the veneer peeling, fading, affecting the overall appearance.

What is steel wooden door

Steel wooden interior door is used for indoor decoration, basically do not have security performance, the user can according to the manufacturer's advertising pages, choose different colors, wood and the interior decoration and design together, no longer like the steel door that cold and not harmonious. Its price is cheaper than the steel security door.

Steel wooden doors are generally divided into two kinds, one kind is called steel wood wooden interior door, used for interior decoration, the other is called the steel wooden armored door. These two kinds of doors are developed on the security door, and has a lot of similarities with the process of security door, the structure of the steel plate and wood mixed structure, so all known as steel wooden doors.

Steel wood interior door: the outer layer is a steel plate, which use wooden, paper shell and other environmental protection material filling inside, lower price, mid-range interior doors on the market, relatively high degree of acceptance. Because of the surface material is different from the security door, so can only be installed in the room, avoid the sun. The combination of the two is called the steel wood interior door. When coupled with the door will be equipped with a steel door frame, so it can be called the steel wood interior door.

How to choose security door

Purchase can be based on personal preferences and economic conditions. Consumers in the purchase of steel security door should pay attention to the following points:
1.Consumers should choose suitable security door according to the size of the openings, the opening direction, color pattern and other practical requirements.

2.Anti damage function is the most important function of security door, the seller can be required to produce the relevant departments of the inspection certificate.

3.The thickness of the steel plate of the qualified security door frame shall be above 1.5mm, and the thickness of the door body is generally above 40mm, and the weight of the door should be checked, generally should be above 40kg. And by removing the cat's eye, the doorbell box or the lock handle to check the internal structure of the door body, the thickness of the steel plate should be more than 0.5mm, a plurality of reinforcing steel frame should be inside, so that the front and back panels of the door body are organically connected together, enhance the overall strength of the door body. The door is generally with polyurethane or honeycomb paper filler, with the function of thermal insulation, sound insulation. The fire doors should be filled with fireproof material as filler such as asbestos, hand percussion door body issued a "pound" sound,  it should be flexible for hand opening and closing doors. Fire door production should have the national certification of the production of fire door.

4.Check process quality: special attention should be paid to check whether there is no welding defects, such as open welding, unweld, leakage etc.. The door and the door frame is closely related or not, the gap is uniform or not, open is flexible or not, all joints are compacted or not. The surface of the door panel shall be protected against corrosion, general should be spray and painting, the surface should be no bubble, uniform color, most of the door frame is embedded with a rubber seal, will not have a harsh metal crash when close the door.

5.Lock check: qualified security door is generally used qualified special security lock inspected by the public security department, at the same time, the lock should have the protection of the steel plate which thickness of more than 3.0mm. Now there are many special security lock is multi direction lock, the utility model has the advantages of not only the door lock, the bar can be inserted into the lock to fix the door, greatly increasing the security performance of the door. In China, the mechanical burglar alarm door lock is divided into general protection level and advanced level, with class A and B to indicate. A lock refers to the lock which anti destructive opening time not less than 15 minutes, the anti technical open time of not less than 1 minutes , B lock refers to the lock which anti destructive opening time less than 30 minutes, the anti technical open time of not less than 5 minutes. And in the same case, the security performance of B class security lock is 5 times than A class lock. High end security door will even use super B class lock.

6.Brand guarantee: brand is the mark of product quality and service. Buy security doors in the market, it is best to buy from a formal large home building materials city. Should also pay attention to the "FAM" logo of the security door, corporate name, the implementation of standards and other content, in line with the standard of the door can be both safe and reliable.

7.After installing a steel security door, the user should firstly check the keys, insurance, invoice and customer service service such as single parts and materials and security door manufacturers to provide parts and information are consistent, do not less any single key. Opening the lock which has been installed at the door with the key, the lock core should be easy and flexible, non card hysteresis; in the process of the door open to 90 degrees, should be flexible, no jamming, noise etc..

Appearance and structure of security door

Surface quality and safety of the security door: The materials of security door qualified are in line with national standards, the thickness of the steel plate of steel security door frame should not be less than 2 mm, and the thickness of the steel plate generally used in thedoor leaf is about 0.8-1 mm. The doors with internal frame and a reinforced plate, and play a certain anti damage performance, and can achieve the security level requirements of the national standard.

Size and opening direction of security door: Home security door generally has four kinds of specifications, by the width and height of the four digit representation. For example: it is 1 meters in width, height of 2.1 meters, its size is 1021. The open door of the security door is divided into inner open door and outer open door, and the inner open door and the outer door are divided into left open and right open, and the user can select the open direction of the door according to different situations.

Environmental protection of melamine board

Melamine plate light, mildew, fire prevention, heat resistance, earthquake resistance, easy to clean, renewable, fully meet the energy saving, environment friendly, so people in the industry said that it is the ecological plate. In addition to solid wood furniture, all kinds of high-end furniture with melamine board. Adding melamine board in the high end wardrobe can effectively prevent the environmental pollution caused by formaldehyde and urea formaldehyde resin as a preservative. In addition the melamine board can replace wooden plate, aluminum plate made of mirror, high wear resistance, anti-static, relief, metal finishes.

Melamine board, the pavement in the shaving board, damp proof board, medium density fiber board or hard fiber board surface, after hot pressing and into the decorative board. In the production process, usually by the number of layers of paper combination, the number of the layers according to the requirement.

The inner structure of the medium density board is uniform, the binding force is larger than that of the particle board, the deformation is small, the surface is smooth, and the nail holding power is strong. Therefore, the melamine board made of medium density board is more solid and durable, can play the characteristics of the assembly type furniture assaembly. The texture of particle board is relatively loose, and its cost is low.

KENT Melamine wooden door

The safety of security door

Security lock is the most important component of security door, the performance of security lock is directly related to the safety of the security door, the general use of mechanical and electronic locks. In security lock selection, should pay attention to the product must be designated by the state authority certification. Security lock should have the function of preventing drilling, sawing, anti - skid, anti - pulling and anti - impact. The security lock is divided into single point and multi-point lock, single point refers to the so-called lock locked by lock point itself to closed the door.  Multi point of the lock is to point to in addition to its own lock point, at the same time to drive the sub lock, the formation of a number of points, and distributed around the door frame, enhance the performance of the anti - skid.

The tongue length of security door locks : A level of security door should not be less than 14 mm in length; B level should be not less than 20 mm. Security lock shell commonly used not less than 2 mm thick steel plate or with  a certain strength of the material, folding, openings shall be welded or whole stamping molding. In the main lock tongue drive device and the lock body corresponding to the key parts, there should be anti drilling steel plate or protection measures such as drilling.

The door hinge is components connect door and door frame, mainly to support the door body, and it should have the function of security. At present, the hinge of security door with external and built-in hinge. The built-in hinge is suitable for opening the door, and the external hinge is suitable for the inner door opening. The hinge shaft diameter greater than 12 mm, if the hinge rolled steel used, the closed edge must be welded.

How to choose high quality PVC wooden doors

PVC wooden doors with a paint free processing technology, composite materials for the production. The thickness of the plate is about 8 mm, the internal structure of wooden keel frame, which the sealing material and ingredients are mostly selected PVC. Because of the cheap materials of the PVC wooden door products, the price is relatively cheaper than solid wood entry doors. The cost performance of PVC wooden door is also relatively high, environmental protection and energy saving performance is also very good, it is the first choice for working families. The materials and processes of the PVC wooden doors, the door core use Chinese fir timber as same as other wooden doors, the surface is about 1cm and high density board strength, the outside is not to paint, artificial or natural veneer paper, interlayer insulation paper with honeycomb paper with heat insulation and sound insulation function. Because there is no paint, so production time is very short, but also avoid the pollution of paint. In the purchase of PVC wooden doors, to combine your own house structure and requirements, and pay attention to check the environmental standards of PVC wooden doors. In PVC wooden door production, the process is the most direct factors impact on the quality, the sound insulation effect of PVC wooden doors also depends on the material and process of the details. If the density of the door is higher, the weight is more heavy, the sound insulation effect is better, because the density of the door is higher, so the ability to obstruct sound and heat transmission is stronger.

Wooden door opening direction

May everyone in life will rarely pay attention to the opening direction of the home door, generally the entrance door opened outwards, the bedroom door is open toward the inside, but some wooden door manufacturer is easy to install the door in wrong direction, we should pay more attention to it.

Bedroom wooden door open angle is the most important part to ensure that the overall sense of the house, do not occupy a large area of the main aisle. Some in the bedroom door easily to collision with wall or closet, the whole performance of the door will be influenced of a long time to use, it will cause serious problems such as falling off the corner. The bedroom is usually connected to the corridor, and should consider the bedroom door opening direction and corridor without holding back, the maximum guarantee to open the bedroom door, and can meet the practical requirements.

Many families will choose to install the doors at the gate in the public area, general installation direction is outward, mainly in order to facilitate the evacuation; But in the home is generally open inward, the main consideration is the security aspect of security, living with the door in the door outside the general will install a security door, the door is open to the outside. This whole opening direction is more practical, and the safety factor will be higher.

Toilet wooden doors are used relatively high, so the direction of the opening of the door will be based on the size of the field to determine. If the bathroom is relatively large, the direction of the opening of the door can be inside; If the toilet area is relatively small, so the toilet doors opening direction can be considered open outwards, or in the bathroom can use sliding door, this can save place, also can avoid collision with furnitures.

Kitchen doors open direction should ensure that the wooden doors will not affect the use of the space of kitchen. If the inside opening direction will not affect the use of the kitchen, then the wooden door can be opened inside, otherwise the direction should be turned outward. Many families will choose the sliding door, the kitchen dose not seem particularly narrow, but also increase the permeability of the kitchen. Because rooms like study and cloakroom should be ensured that there is sufficient space, so the door can be opened outwards, can also use the sliding door.

Introduction of fire prevention door control system

Fire proof door monitoring system is divided into normally open fire door control system and normally closed fire door control system.

The composition of the normally closed fire door monitoring system：
Safety control and alarm escape door lock system + fire door control system

Normally closed fire door monitoring system should have the security function: everyday situations, the fire door is in the closed state can protect property safety, when the fire occurs, the alarm and the voice prompt can rapidly and effectively guide people to escape in chaos.

Normally open fire door control system: everyday situations, the fire door keep open, easy to access. During the fire, the linkage door closer and the fire door is automatically closed, and the door state information can be fed back to the fire control room.

The material difference of melamine plate

From the cost considerations, the melamine board furniture for the family multiply use of fiber board and particle board for the substrate, higher grades are used to fine wood board (solid wood core) as the substrate of melamine board. In contrast, the performance of blockboard (solid wood core) is better than the previous two. The internal structure of the blockboard is uniform, the combination force is large, the deformation is small, the surface is smooth, and the nail holding power is strong. Therefore, the blockboard used as a substrate of melamine board is more robust and durable, more able to play the characteristics of the assembly type furniture. The texture of medium density board and particle board is relatively loose, poor grip strength, lower than the cost of the former.
There is melamine press plate, can make the board surface effect, divided into smooth, rough (coarse linen, hemp, linen and cashmere) embossed surface (large and small relief). Rough and relief surface is more expansive than smooth surface, but generally used as cabinet door.

Identification of security door

1.Require vendors to produce the relevant departments of the inspection certificate.
2.Remove the cat's eye, the doorbell box or the lock handle, check the internal structure of the door body. There should be a number of reinforcing bars in the door, so that the front and back

panels of the door body are connected together. Preferably with fire, heat preservation, sound insulation function of the material as a filler, such as asbestos.
3.Check whether the use of a qualified special anti-theft lock, the lock is installed in a reinforcing steel plate for protection.
4.Process quality inspection of products, whether there are welding defects, the door and the door frame is dense.
5.The weight of the steel security door is generally not less than 40 kg.

Bedroom decoration how to choose wooden doors

The decoration of the bedroom greatly affects the quality of our sleep, affecting our daily mood. Bedroom with luxury wooden doors is a good choice, natural and beautiful and practical wooden doors are always let people relax easily. Then what is needed to pay attention to when choosing the bedroom wooden doors?

1.Decoration bedroom doors must be alert to the auxiliary material pollution of wooden doors

Research shows that half of the time every day is spent in the bedroom, the bedroom environment is safe or not directly related to human health. If the bedroom doors contain excessive harmful substances, people stay inside for a long time, breathing harmful gases, health will be affected, which is not conducive to better sleep and rest. The harmful substances of the bedroom wooden doors are not only from the plate, but also from the adhesives and coatings, and so on, some hardware parts will also release harmful heavy metal pollutants.

2.Decoration bedroom doors should be selected according to the specific circumstances

The choice of the bedroom door needs to be based on the specific circumstances of each family, while small space or poor lighting conditions of the bedroom, choose light colored wood doors can make the space look bigger, the visual look more bright. Recommended the relatively simple style, it is not recommended to choose decorative bedroom door with too many miscellaneous, so that it will make the space look more crowded. While the old man and the child's bedroom, try to choose a warm wooden door can make you feel brisk and comfortable, but also conducive to improving the quality of sleep, so the color selection should also pay more attention to. Usually the sound insulation effect also must be taken into account, ordinary wooden doors have certain noise function, but if the requirements is higher, you can choose some professional mute door on the market.

3.Choose the bedroom door which you really need

Only choose their own bedroom wooden doors, will show the best effect. That is to say, the bedroom door is chosen to be consistent with the overall style of decoration, or the beautiful wooden door will also produce a sense of alien.

Which matters needing attention to custom villa furniture

As we all know, custom furniture in the market is also very popular in the market, with the furniture brands which be able to provide relevant services also increased, so that we can have more options. However, in the choice of customized villa furniture brand, must pay attention to the evaluation, especially those consumer reviews who have used the related products, and then make a simple survey of the market, choose a higher cost performance brand from it.

The material

As we all know, the material is good or bad, can directly affect the use of custom villa furniture. Now the material is very much, everyone can screen according to the price and performance of products, do not blindly believe that the higher the price of the product, the quality is better, but also do not think the products made of many material is better.
We can according to our actual situation, screening material in a certain price range, starting from the environmental protection, bearing, wear resistance, hardness, corrosion resistance and other aspects, so as to choose the best material to have better customized villa furniture, improve our living environment, make life more delicate.

Style design

Before determining the custom furniture style villa, the owners need to have their own opinion, from the material selection and color to the overall design, need to have their own ideas, and then tell designers these design elements.
And in the custom villa furniture process, we should pay attention to the overall style of the room. If you are designing according to your own preferences, it may make products to break the original balance of design, so that it is not coordinated.

Details

For the design of customized villa furniture, first of all should pay attention to the function of the product, truly make the best use of space not only make life comfortable and beautiful, but also bring more convenience for life. And the customized villa furniture which details of the deal is in place can enrich and make the whole room is full in a certain extent, make whole space clean and tidy. Then pay attention to the environmental protection, which should be in the selection of the small details of the material, green, healthy living environment will be more popular.
If there are children, we should consider to polish sharp corners smoothly, in case of causing unnecessary harm.

See the specification and requirement of wooden door installation from five aspects

Speaking of the installation of the luxury wooden door, a lot of people think it seems very simple, in fact, the door sheet installation involves several aspects, including the door, door, hardware etc..

Door frame installation

1.Door frame joint should be tight and smooth, no black seam, lock accessories should be fixed.
2.Diagonal to be accurate, if the height of the door is 2m below, its error should be less than 1mm, if it is more than 2m, the error is less than 1.5mm.
3.Door frame installed, should be horizontal and vertical, verticality tolerance of 2mm, the level of flatness tolerance 1mm.
4.Between the door frame and the wall should be fixed with screws (not less than 3 per meter), door frame width should be above 20cm with fixed iron.
5.Between the door frame and the wall cracks with double sealed foam, foam should be evenly, dry cutting flat.

Line installation

1.Line should be installed with uniform coating door, wall fixed line, set the interface should be smooth, tight, seamless
2.There is a gap between the line and the wall, should use sealant caulking treatment.
3.After installation, the same side of the line should be in the same level, because if the wall is not normal, must ensure that the line interface level is smooth.
4.Installation of line camber tolerance within 1mm.

Door leaf installation

1.The door leaf is installed, should be flat, vertical, door and door exposed plane.
2.The door leaf open and shut without ring, seal tightly, do not swing, freely switch
3.The gap between the door frame and the door leaf, the seam under 6mm, the other three sides of 2mm, all the gap tolerance 0.5mm.

Hardware

1.The door hinge should be vertical and flat hinge screws should be installed, straight, hidden in the plane.
2.Flat hinge for doors leaf and door frame corresponding slot, slot size should be standardized and the same to the door, three edge tolerance hinge 0.5mm, assembly after the formation of seamless,

hinge opening should be flexible. Trigeminal hinge installation according to mold, the bolt should be inserted in place.
3.Door lock installation should be tightened, the lock is no different ring, the slot should be accurate and standard, size and the lock body, the lock piece is consistent.
4.Fittings installation is complete, fixed screw should be installed all, straight.
5.Door closer, handle and so on should be installed in the specified location, the installation is firm, the fixed screw should be installed all, straight, with good effect after loading parts.

Appearance

1.Door frame, door line and ground combined gap should be less than 3mm, and waterproof sealant sealing gap.
2.The gate should be loaded, smooth and uniform, open and flexible, the overall effect is good.

The key points of purchase wood products

Look at the style and color

The color and shape of the door is one of the main contents of the decoration style, the color of the wooden door should be fixed with the bedroom, color selection should also pay attention to close to the color of the ground and furniture, which contrasts with the color of the wall, it helps to create a sense of space level. Wooden doors to be consistent with the style of the bedroom decoration. The wood of wooden doors should also be the same with the interior furniture of wood consistent, in order to achieve the best results.

Paint

Wooden doors has a good looking because of the paint, but the paint effect also can explain wooden door factory level.
1.Paint film is attractive, which means the paint is good quality, strong polymerization, good sealing, and painting process is perfect, without cutting corners.
2.To find the reflecting angle, look at the surface of the film is smooth or not, orange peel phenomenon is obvious or not, if there are small particles protruding. If there are small particles obviously, indicating coating equipment of this plant is relatively simple, at least without full pressure dust-free spray paint room, this is a necessary equipment for the quality control of paint. If the orange peel phenomenon is quite obvious, that the film curing process does not good.
3.Fancy shape door, to see the shape of the edge of the line, especially the negative angle (which can be seen but can not touched) there is no film cracking phenomenon or not. Because the surface of solid wood composite door is stuck veneer, for non flat surface veneer, need special vacuum affixture machine. The manufacturers without these equipments have to use solid lines instead, in fact, that's the problem. The appearance is unlikely to be the same with the other part of the wood texture (veneer for precious wood), the key is solid lines in northern climates, great changes by the humidity of winter and summer, expansion and contraction, extremely easy to cause the negative film cracking angle, seriously affect the appearance.
4.The type of paint is often PU paint (polyurethane). The advantages of PU paint is easy grinding process, saving time and labor, the disadvantage is the soft film, a slight bump prone to white dent. If there is at least one layer of PE paint in the paint, it will reduce the possibility of that. PE paint (polyester paint) has the advantages of paint film is hard, strong hiding power, good transparency, better performance of veneer texture, the disadvantage is difficult to grind, the process is time-consuming and laborious, most manufacturers do not want to use the PE coating. This is also very able to show a manufacturer's attitude towards the product. Here to illustrate a point, the general promotion training will not be involved in this area, so they are not so much to deceive consumers, they do not understand the difference between these two kinds of paint.

Look at the surface flatness

1.Veneer bubble, were uneven heated in the attachment process, or uneven glue, hot press plate can solve the uneven heating problem of flat door skin.
2.Wooden surface roughness is not enough, the plate selection is relatively cheap, one can imagine the environmental performance is difficult to reach the standard.

Check whether the structure is strong

Wooden doors are finished, we can not view its internal structure. So how to check the structure is strong? Find a good installation door in the hall, pull the handle slam the door, if the structure is not good, you can see that the upper and middle of the door is not arrived at door frame at the same time, a slight quiver, the difference is very small, butcan be seen if look carefully. The door with strong structure will definitely reach the door frame at the same time, and will not vibrate.

Properties of melamine board

Melamine board can be arbitrary imitation of a variety of patterns, bright color, used as a variety of man-made board and wood veneer, hardness, wear resistance, good heat resistance. General chemical resistance, abrasion resistance to general acid and alkali, oil and alcohol solvent. Smooth surface, easy to maintain and clean. Melamine board with both excellent performance which natural wood do not have, it is often used in indoor construction and all kinds of furniture and cabinets decoration. Melamine board is a kind of wall decoration material.

General specification: 1220mm x 2440mm, thick 1.5-1.8Cm.

KENT is a professional manufacturer of melamine doors,high quality and reasonable price,looking forward to get your inquiry.

Melamine board introduction

The substrate of melamine board is particleboard and MDF, composed of base material and surface bonding together, there are two main types of domestic and imported. Because it is through the fire, wear resistant and waterproof soaking treatment, effect similar to composite board.

Melamine board is made of different color or texture of papers into the melamine resin adhesive soak, and then dried to a certain degree of cure, the cracks in the moisture-proof board, particleboard, MDF, plywood, blockboard or other hardboard surface decorative plate formed by hot pressing. In the production process, usually by the number of layers of paper combination, the number of paper depending on the requirement.


The decorative paper bubble in melamine solution, and then through the hot pressing to pressure up. So, moistureproof board which used to make furniture generally called melamine moisture-proof board, melamine formaldehyde resin is a kind of very low formaldehyde solution, which is environmentally friendly, not only will not cause 2 pollution, but will reduce the inside substrate release, this method has been a recognized. But the surface treatment can be divided into good or bad, because the melamine formaldehyde resin solution price is almost 10 times that of other rubber, a lot of people mixed with UF resin in solution, this is not environmental friendly, so the board is divided into melamine and tri poly plate, which is not easy to distinguish.

According to the internal fiber morphology can be divided into two kinds of melamine particle board and melamine density board; The substrate of melamine particle board is made of the wood into particles and wood chips, through the arrangement, hot press and plastic dry; The substrate of the melamine density board labeled timber sawdust by redirecting arrangement, hot pressing, glue dry form. The difference between the two is: the strength of the particle board, strong ability to absorb nails, the density board is relatively weak.

KENT is a professional manufacturer of melamine wooden door,high quality and reasonable price,looking forward to get your inquiry.

Brief introduction of stainless steel door

The stainless steel door is made of color steel plate shear compression and processing materials, the same as the general view outside, the main material by vacuum plating of stainless steel sheet, the filling is usually wood, foam or honeycomb paper, have a solid feeling when the percussion. The middle is a door flower, the door flower is sandwiched between the two layers of glass, so can play the role of anti-theft door, you can use the mold to produce a variety of door flower pieces. Residential areas, villas, high-end apartments use stainless steel door mostly, generally as the entrance door, to protect the safety of the house property.

The stainless steel door is formed by argon arc welding of stainless steel color plate with the thickness of more than 1.0mm in the direct shear bending type, no pipe skeleton, compact structure and good effect, but the cost is too high so few company produce. The door frame is popular before 2009, with a stainless steel rectangular tube welded frame covered with a layer of 0.8mm stainless steel plate and skeleton spot welding in the outside, middle hollow decorative flowers, embroidered with double glass, and the appearance is beautiful.

Advantages and disadvantages of PVC wooden doors

PVC wooden door is a door that does not need to paint again. It is the solid wood composite door or molded door which surface use the PVC veneer vacuum plastic processing technology. The door frame is also using PVC veneer processing.

Advantages
1.A variety of color, more modern and green environmental protection.
2.Product surface is smooth and bright, free of paint, you can avoid the use of other decorative materials release toxic gases in the air after the paint, harming the human body.
3.One time molding, short construction period.
4.The use of foreign advanced manufacturing technology, paint decoration materials free of high-quality imported raw materials developed, with the advantages of impact resistance, no combustion, mothproof, moisture. preservative, good maintenance, non-toxic and tasteless, no pollution.
5.Construction is convenient, can cut, can be cut, can create, can nail.
6.According to your identity, environment, personality, taste to transform a variety of different shapes, is the ideal home decoration.

Disadvantages
Poor quality PVC wood doors for a long time, easy to expose the shortcomings which is easily affected by factors of humidity, temperature and air, the surface to produce plastic deformation.

Construction and installation requirements of fire wooden door

1.Wooden fire door should be flat open door, must open flexibly, and has the function of self closing.
2.For the evacuation channel of the wooden fire door should be closed immediately when the fire occurs, and to open the evacuation direction, should not install locks and latches.
3.With its double fan or fan wood fire doors must be closed in order.
4.The door frame and the door leaf lap wood fire door cut mouth should leave sealing groove, and filled with non flammable materials made of seal.
5.When conditions are ripe, it should  assembly complete door leaf and door frame, install all the hardware, and then complete the installation.
6.After the wooden fire door completed, immediately brush bottom oil (drying oil), prevent moisture deformation.
6.The hardware used wood screws, do not use nails instead.

Production requirements of fire wooden door

1.The door frame and the door leaf which thickness greater than 50mm should use the double tenon connection. Frame and sash assembly. The groove should be closely fitted, application of rubber adhesive, and stepped up with plastic wedge.
2.Production of plywood door (including fiber door), and cross border edges must be in the same plane, the surface layer and the frame and the cross corrugated pressurized cementation. In the transverse flute and upper and lower rails of each drilling holes with two or more, to prevent damp degumming or heave.
3.The quality of making the fire wooden door shall be in accordance with the following requirements:
 a.The surface should be net light or matte, and shall not have scratches, burr and hammer printing.
 b.Linear frame and fan should meet the design requirements, cutting angle and welds should be smooth.
 c.Small material and short material plywood door and plywood or fibre door fan does not allow degumming. Plywood is not allowed to plane through the surface veneer.
 d.The allowable deviation of door production shall be in accordance with the relevant regulations.
4.When conditions are ripe, should assembly complete door and frame, install all the hardware, and then complete the installation. In general, you should first install the door frame, then install the door leaf.
5.After the wooden fire door completed, immediately brush bottom oil (drying oil), prevent moisture deformation.
6.The installation of door hardware shall comply with the following provisions:
 a.Hardware shall be fully installed, suitable for the position, fixed and reliable.
 b.The door hinge from the upper and lower ends should be 1/10 of the upright height, and avoid the upper and lower rails, the switch  should be flexible after installed.
 c.The hardware used wood screws, do not use nails instead. Should first hammer into the depth of 1/3, and then screw in, is strictly prohibited to enter the full depth. When the use of hardwood, should first drill 2/3 depth of the hole, the hole diameter of 0.9 times the diameter of the wood screw.
 d.Not in the head with the upright lock.
 e.Door handle should be located in the center of the door, the door handle from the ground to 0.9 ~ 1.05M is appropriate.

Fire door sealing requirements

China National Standard for the size of the gap of the fire rated steel doors between the gaps is clear:, the fan and the door frame of the metal fire door shall not be less than 10mm, the two sides of the gap between the door and the door frame should not be greater than 4mm. After the fire door is closed, the gap can not be too large, otherwise it is difficult to ensure the sealing performance of the fire door, it is difficult to reflect the fire and smoke spread under the conditions of fire.Therefore, the installation of the gap width of fire doors must be strictly controlled. According to the standard specification for installation, it can guarantee the effect of the fire rated wood doors in a certain extent, consumers must supervise in construction employment site, to prevent shoddy problem, so the fire door will not cause casualties in the fire.

The installation method of the fire door

Fire door according to the material is divided into fire steel door and fire proof wooden door. There are some differences in the installation methods of the two kinds of fire doors, but also a little different from the fire protection level, we must pay attention to the details of the installation.
First, while in the installation, the size of the fire rated wood doors frame should be less than the entrance to the 20mm, the lower part of the door frame should under the ground to 20mm. Door frame should be fixed firmly with the wall, vertical angle. Vertical frame and support frame should be paid attention to with straight angle, avoid saw. The two sides of the fixed point of the door frame is not less than 3, the best distance is not greater than 800mm.
Secondly, in the installation process of steel fire doors, considering the bending deformation of the frame, used to support in the frame width direction with the wood brace, the lower part of the door frame should under the ground to 20mm, and then weld the frame and the wall of the embedded parts. Then the door open in the corner of the wall, pouring cement, sand, perlite (1:2:5) concrete, can be use after concrete is solidified.