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FAQ

Plastic doors and windows profiles

The inherent quality of the profile and its reasonable structural design are the prerequisites for the manufacture of high-performance plastic windows. First of all, there must be good formula and high-quality raw materials and advanced production technology to ensure the quality of profiles. In addition from the structure of the profile of a single cavity and multi-cavity PVC plastic profiles, the cavity can be designed ribs, ribs, boss, etc., can be divided into two cavities cavity, three chamber or multi cavity, Can be better from the role of thermal insulation, on the other hand can make the cavity have different purposes, and some used to fix the rigidity of the steel lining, and some used to set the drainage chamber, and some internal ribs can be prevented Profile deformation, the inner ribs can improve the rigidity of the profile, increase the inertia moment of profiles, and improve the impact resistance of profiles.

What belongs to plastic profiles

Plastic Profile A: Impact modifier Plastic profiles, such as without impact modifier, plastic profiles will be very brittle, slightly collision, easy to break. Plastic profiles used in the production of anti-impact agent modifier mainly by the following three categories: chlorinated polyethylene, polyacrylates, ethylene - vinyl acetate copolymer. Plastic profile additive two: heat stabilizer Plastic profile is a thermosensitive plastic, so in the production and processing of plastic profiles, heat stabilizer is essential. The metal salt in the heat stabilizer absorbs the HCL from the PVC, so it can delay the decomposition rate of the plastic and prolong the decomposition time. The most commonly used in the production of plastic profiles is the compound lead salt, which has high thermal stability and low cost. Plastic profile additives three: lubricant The main role of the lubricant is to reduce the polymer and processing equipment and polymer molecules between the internal friction between the friction caused by excessive heat caused by resin degradation, improve the efficiency of heat stabilizer.

What is the amount of plastic profiles

The size of the sliding window lap affects the sealing of the window, safety, installation, daily use and so on. (12mm-8mm = 12mm), the gap between the fan and the ribs of the box (ie, the slide) is 12mm (20mm-8mm = 12mm). ), This gap for windows to install and pick up. When installing the window, the sash and bottom frame are only 4mm at the top of the ribs. Due to the size deviation of the window frame and sash, the straightness deviation of the window frame installation and the height change of the pulley used will change the actual overlap and installation gap of the frame fan. When the amount of overlap between the fan and the upper frame increases, the installation gap decreases, and the window fan is hard to be installed, and the frictional force of the window and the upper seal block increases, resulting in the opening of the sash; Sealing performance decreased, lap volume is too small, but also increase the risk of sliding window off.

The main features of steel profiles

In the building construction is mainly used for sliding, sliding doors and windows, fence, pipe and ceiling material applications, through the new process is also widely used in automotive engine protection board, not only light weight, and good toughness, with just fine Nature, and sometimes also known as alloy steel.

Is not aluminum alloy better than steel?

Aluminum alloy steel has its own advantages and disadvantages, in general, aluminum alloy is better than steel, high grade. Steel is hard plastic squeeze into the cavity, then will be coupled with the steel lining, which see the strength of the manufacturers of doors and windows, and if the thickness of the steel lining is not enough, a long time will be deformed, but the price is low, because it is plastic So it is not a special heat. Aluminum alloy must be a new type of aluminum, not the kind of the oldest kind of aluminum, the new aluminum cavity and plastic steel is the same, but the material is aluminum, good age, metal is hot fast, but It is also possible to add a kind of insulation material, cold bridge (also called broken bridge), plus this material can solve the problem of insulation, but also can do both positive and negative colors , Aluminum alloy is the high price of the general high-end district are equipped with aluminum alloy.

The development of steel profiles

China's steel production capacity has reached 5 million tons / year. Most manufacturers can not fully play the capacity, there is a serious overproduction and homogenization of competition. China's steel profiles common national standard is GB / 8814-2004, access to national inspection-free enterprises are also referred to this standard production. Different from Europe and the United States, China's single type of profiles, the market is the bulk of the 60MM Pingkai doors and windows series of profiles and 80MM push-pull series of doors and windows profiles. The above two specifications account for more than 80% of the total consumption.

What is the steel profile?

GB 8814-2004 according to the thickness of the main section of the profile will be divided into three categories of ABC, according to the "visible wall thickness minimum / non-visible wall thickness minimum" said, A type of wall thickness of 2.8 / 2.5mm, B Type of material requirements wall thickness 2.5 / 2.0mm, C type of wall thickness does not specify the requirements. The mainstream of the national standard profiles are Class B.

How many meters of a conch plastic steel profile

The length of the material factory standard is 6m Frame material is generally a bundle of four, or a bundle of six, the fan material is generally a bundle of 6-8, pressure line 20 - 30 bundle