What material is generally used for outdoor door frames, what materials are durable for door frames,

1. Look at the profile quality of plastic steel doors and windows.

When observing the appearance of the profile, we should pay attention to the color should be blue and white, not white as people usually think, whether the color of the frame and the profile of the fan that makes up the doors and windows is consistent, whether the appearance is uniform, and whether the distribution of the cavity is reasonable. Calcium carbonate is usually added to the formula of plastic steel doors and windows, and some manufacturers will add excessive calcium carbonate in order to reduce costs, so that it becomes a calcified plastic, the surface of doors and windows made of plastic lacks luster, is slightly rough, hard and brittle, and looks like a rough feeling of stone, while normal plastic steel doors and windows, the surface is usually shiny and tough.

2 Look at the hardware of plastic steel doors and windows.

The quality of hardware also has a certain impact on the life of doors and windows, so the hardware used should look thick, and the surface gloss should be good, the protective layer is dense, there is no scratch, and the most important point is that it should be opened flexibly.

3. Look at the clearance and sealing of doors and windows.

Look at the gap and sealing degree of doors and windows, mainly to see whether the matching gap between various profiles is tight, whether the incision at the fit is flat, and the height difference at the lap of the profile. For plastic steel doors, the main considerations are the gaps between the door frames and fans, the door panel beads and door panel edging, the various profile connections of the shutters, and the sealing strips. If it is an assembled door panel, the gap between the door panels should also be considered; If it is a swing door, it is also necessary to see whether the two doors are transparent after closing.

Similarly, for plastic steel windows, in addition to considering the assembly gap of various profiles assembled, it is also necessary to consider whether the sealing strip is uniform and firm. The interface clearance should not be greater than l mm, which mainly reflects the sealing performance of the window. Plastic steel doors are usually used as the interior doors of buildings, and the sealing requirements are not so high.

The clearance value of doors and windows is specified in the national standard, but for everyone, the smaller the clearance value at the connection of various profiles, the tighter the fit, the more exquisite the assembly process, and the more it can reflect the assembly level and the accuracy of the assembly tool.

4. Look at the welding of plastic steel doors and windows.

The welding of plastic doors and windows mainly depends on whether the welding place is flat, whether there are cracks, whether the inner and outer corner joints are clean and beautiful, and the diagonal size of plastic steel doors and windows is measured on a box scale, and the diagonal size difference should not be greater than 3mm, and the smaller the diagonal difference, the more it can show the fineness of the process, and the more conducive to installation.

5. Look at the reinforced steel of plastic steel doors and windows.

According to the national standards for different plastic steel doors and windows have different requirements for wind pressure resistance, the inner cavity of the frame and fan of plastic steel doors and windows needs to be equipped with reinforced steel, and there are three main thicknesses of reinforced steel according to different heights to ensure the firmness and service life of the product. In order to reduce costs, some manufacturers do not install or install reinforcements that do not meet the requirements: section steel.

1) Estimating by the weight method, that is, weighing the weight of doors and windows, the weight of doors and windows equipped with reinforced steel is heavier, and vice versa.

2) Put the magnet on the frame and fan of the door and window, if the magnet is adsorbed, it means that there is reinforced steel in the profile, and vice versa.

3) Observe whether there are screws for fastening the section steel on the frame and sash of the door and window, and also prove whether it is equipped with reinforced section steel.

Soft curtain plastic pvc transparent curtain windproof dustproof partition cold storage antifreeze insulation thermal insulation air conditioning curtain.

The door of the home is generally better than solid wood, and you can consider using solid wood, and the price is also better.

1. What is the best material for the door sleeve: aluminum alloy door sleeve: The aluminum alloy door sleeve is beautiful, durable, wear-resistant, and can be replaced at any time. The aluminum alloy at the bottom can be fixed with screws for construction, and the rubber strip on the surface can also hide the screws to achieve the effect of beauty and stability.

2. Steel door sleeve: The surface of the steel door sleeve adopts the transfer baking paint process. The single-sided line of this door sleeve is relatively simple, and the installation method is the same as that of the steel door, which makes it lose the essence of the interior door of the steel and wood suit.

3. Solid wood door cover: The solid wood door cover is made of natural logs, which has a relatively high cost of this door cover, and when the nail is screwed, it is easy to cause cracks and cracks if it is not done well.

The core material is made of square wood, using the principle of bridge mechanics to make the skeleton vertically and vertically, the inner and outer surfaces are made of 9 centimeters composite board as the surface substrate, the door thickness is 42 to 45 mm, and the solid wood filling accounts for 70%, and then the sticker (imitation wood grain paper) baking paint, the sticker paint door can only be closed paint, not open paint. There is little difference between solid wood composite doors and paint-free doors, the difference between the two is that solid wood composite doors must be dried at high temperature twice, which is better than the paint-free door**Around $800

Now there are a variety of materials in the wooden door market, there are PVC paint-free doors, melamine surface ecological doors, MDF or bamboo charcoal fiber composite doors, solid wood plywood surface of the paint composite door, multi-layer board material paint composite door on the market There are many wooden door materials, solid wood, all wood, painted, varied, when you choose, you can choose according to the decoration style and personal preferences of the family, each to create the effect, the quality is different.

The high-grade solid wood composite door is composed of a door panel and a door core; The door panel is generally made of walnut, teak and red oak, and can be selected according to the decoration tone; The door core is mostly made of high-quality white pine, the white pine density is small and the weight is light, and the solid wood composite door: the door core of the solid wood composite door is mostly made of pine, fir or imported filling materials, etc., and the MDF and solid wood veneer are pasted outside, made after high temperature hot pressing, and the edge is sealed with solid wood lines.

Paint-free doors: Cheap, easy to form, empty in the middle, formed with wooden file veneer. Generally, it is not recommended to rent a house, hardcover is not recommended, it cannot be exposed to water, and it is easy to peel off if there is a slight bump.

Disadvantages: the use of pure solid wood processing, if the solid wood dehydration treatment is not good, after making a wooden door, the door body is easy to deform, the tenon joint is cracked, and the door core board shrinks and exposes white. The interior of the solid wood composite door is mostly wood filling material, and the outer layer is mostly solid wood veneer, which is then processed and closely fitted together to form a solid wood composite door.

The filling material of the solid wood composite door is mostly fir wood, and the density of fir wood is small and the weight is light, so the weight of the solid wood composite door is relatively small.

You can choose the core material, the main reason is that these are used to make the door frame so it is very strong, and it will be very different from ordinary wood, and it is often not easy to crack.

You can choose solid wood particle board or multi-layer wood board, these two wood boards are very plastic, and they are also particularly strong and durable, and they are also very reasonable.

When home renovation, interior doors are a building material that must be purchased. Beautiful and practical interior doors can not only play a decorative effect, but also isolate the sound and smell of different spaces, so choosing an interior door is a very important thing!

Different materials of interior doors, its environmental protection level is different.

1. High-grade log door.

The more high-end products in the wooden door are made of pure solid wood, even the most common solid wood products such as red pine, fir and other log doors are not low, and the more high-grade mahogany is more expensive. However, the environmental protection level of the log door is very high, the use of pure natural wood production, completely pollution-free, the only source of pollution is the surface of the paint, as long as the process is correct, there is generally no environmental hazards.

2. Solid wood composite door.

The difference between a solid wood composite door and a log door is that only the skeleton is made of solid wood, and its surface is pasted with veneer, which is much worse than the log door, but its shape is beautiful, and the environmental protection level is not low, ** is much lower than the log door, so it is still very popular.

3. Molded door.

This kind of door ** is very cheap, the environmental protection level is poor, it is made of sawdust and thin wood boards, and chemical glue is used inside, so it is easy to emit harmful substances and cause pollution.

4. a steel door.

The environmental protection level of steel doors is the highest, because its skeleton, door leaf, and door panel are all made of steel, which is non-toxic and odorless, and does not need to be painted. As long as the inside of the door leaf is filled with non-polluting materials, it is a completely pollution-free door. However, the steel door is much higher than the general wooden door, and the installation fee is relatively high.

The advantage is that it is durable and can not be replaced for decades.

5. Steel-wood door.

Compared to steel doors, steel wooden doors use wooden keels and surface wood veneer. In terms of environmental protection, it is worse than steel doors. Due to the simplicity of the process, it is much cheaper than steel doors.

6. a glass door.

The glass door has the highest light transmittance, the sound insulation effect is very good, and of course, the environmental protection is also very good, and it is a commonly used door in the home environment.

What material is better to use for interior doors in different environments? 1. The most important function of bedroom and study bedroom doors and study doors is sound insulation, so on the basis of ensuring sound insulation, you can choose steel doors or solid wood doors. Simple and modern, you can use steel doors, or wooden doors if you want an aesthetically pleasing shape.

2. Kitchen and bathroom kitchen doors and bathroom doors have certain needs in waterproofness, sound insulation and sealing, so you can choose aluminum alloy glass doors or steel doors in the bathroom, and glass sliding doors with frosted decoration are used in the kitchen.

3. The children's room door should pay attention to environmental protection, because children have poor resistance and are easy to be polluted by formaldehyde, which affects their healthy growth. Therefore, it is recommended to choose a steel door with the strongest environmental performance.

It is best to choose solid wood for the material of the door and door frame, which is formaldehyde-free, strong and beautiful.

Remember that the material for the door and door frame must be made of pine wood.

The wooden doors on the market can be divided into five categories, sorted by quality and **: that is, solid wood doors, solid wood craft doors, composite doors, molded doors, and plywood doors.

It depends on what the door is, and I personally think that the bathroom and kitchen are better than the color aluminum.

The show gives the Internet a more detailed classification of interior door materials, among which the solid wood material has natural environmental protection properties.

If conditions permit, it is recommended to choose some of them, such as mahogany.

The market is solid wood, you still choose the top number of pine or sandalwood.

Look at the ** door, if it is a bathroom or kitchen color aluminum door is the best choice.

Be sure to choose the same material, the same color, solid wood is a good choice.

1. Honeycomb paper.

Honeycomb paper is made according to the principle of honeycomb structure in nature, which is to connect the corrugated base paper into countless hollow three-dimensional hexagons by glue bonding method to form an overall stressed part - paper core.

The door core is filled with honeycomb paper, which is not suitable for the main door of the family due to the lack of stability, resulting in a short service life of the wooden door; Second, the load-bearing is poor, and the load-bearing of the honeycomb panel door partition board is generally not more than 30 kg; The third is that the overall heaviness of the wooden door is not enough, and the feel of opening and closing the door is too frivolous. Moreover, some small enterprises choose lower-grade honeycomb paper in the consideration of cost, and the glue and formaldehyde content cannot be guaranteed. Generally speaking, the strength of honeycomb panel doors is weak, and the environmental performance is not as durable as solid wood doors made of traditional materials.

2. Particleboard.

Particleboard is a wood-based panel made of wood or other lignocellulosic materials, which is glued under heat and pressure after applying adhesive, also known as scrap board.

Compared with the poor stability of honeycomb paper, the stability of particleboard has been slightly improved, but its density is not large, the whole is relatively soft, and the nail holding force is not strong. And because particleboard is a scrap made of wood or other lignocellulosic materials, the finished product will release free formaldehyde for a long time, affecting human health.

3. MDF.

MDF is a kind of man-made board made of wood fiber or other plant fiber as raw material, crushed, fiber separation, drying and then applied urea-formaldehyde resin or other applicable adhesives, and then hot-pressed; The structure is relatively dense compared with the above materials, but the nail holding force is relatively poor, not moisture-proof, and the water absorption expansion coefficient is high; The security and stability are relatively poor.

MDF density range is generally 500 880 kg cubic meters, the density ratio is greater than water, MDF or MDF scraps are used as the filling of the door leaf, the overall weight of the wooden door will be heavy, and it is easy to make the door leaf fall in the later long-term use process, affecting the overall effect.

4. Keel filling.

As the name suggests, it is supported by a keel frame structure in the center of the door. It is a filling method used more in the wooden door industry, in order to ensure the weight may be filled with other materials, and the environmental performance of the internal filling can not be guaranteed. There is still a big gap in stability compared to solid wood filling.

5. Finger jointed solid wood.

The finger joint board is spliced by a plurality of wooden boards, and the upper and lower boards are no longer glued to the splint, because the vertical planks use a zigzag interface, similar to the cross docking of the fingers of the two hands, so it is called the finger joint board. Moreover, finger-jointed board is better than solid wood in terms of removing wood defects such as knots and decay before gluing, physical and mechanical properties such as tensile and compressive resistance, and homogenization of material quality.