With the rapid development of China's construction industry and the continuous improvement of people's living standards, the superiority of aluminum doors and windows curtain wall has begun to highlight, and gradually become the mainstream products of the door and window curtain wall industry. Doors, windows, and curtain walls are an important part of the building's exterior protection. People use it to get the sun's light, heat, and fresh air to view outdoor scenery to meet the physiological and psychological needs. Therefore, it must have many functions such as lighting, ventilation, weather protection, heat preservation, heat insulation, sound insulation, dust prevention, fire prevention, anti-theft, and shielding of the outside world in order to provide people with a safe and comfortable indoor living environment. At the same time, as a part of the building's exterior walls and interior decoration, its structural form, material texture, surface color and other appearance effects play a very important role in the decorative harmonization of the building facade and the comfort and harmony of the indoor environment. Reviewing the development of the door and window industry, it is not difficult to see that wood windows are limited by resources, and the basic trend has gone; steel windows have been significantly eliminated due to lack of function; since the advent of aluminum doors and windows, due to their light weight, corrosion resistance and other characteristics have been favored by consumers; Plastic doors and windows have developed rapidly in recent years and have caused a significant impact on the market of aluminum doors and windows. At present, aluminum doors, windows and plastic doors and windows have their advantages and disadvantages in the exterior decoration market. From the comparison of the two functions and many comprehensive performances, although the plastic window is slightly better than the aluminum window in the insulation performance, most of the performance is still better than the plastic window in the aluminum window. The performance is: the wind pressure resistance of the plastic window (1500～ 2500Pa) is 2 levels lower than aluminum window (2500-350Pa); plastic window and aluminum window are in the same level of hermeticity (2.5-0.5m3/mh); single-layer aluminum window insulation performance (6.4w/m2k) is poor , But the heat insulation aluminum window (1.8w / m 2k) insulation performance is much higher than the plastic window; plastic window lighting performance is worse than the aluminum window, reduced by about 10%, visual field and decorative effects are not as good as aluminum windows; plastic window sound insulation performance and Aluminum windows are similar, with no major difference (single glass 20 to 26 dB, hollow glass 20 to 26 dB).
Cutting Wheel
Diamond cutting piece is a widely used in stone, concrete, precast board, new and old roads, ceramics and other hard brittle materials processing.
Diamond cutting pieces are mainly composed of two parts; Matrix and cutter head,
The matrix is the main support part of the bonding tool head, and the tool head is the cutting part in the process of use.
The tool head will be constantly consumed in use, while the matrix will not. The reason why the tool head can play a cutting role is that it contains diamond. Diamond, as the hardest material at present, cuts the processed object by friction in the tool head, while diamond particles are wrapped in metal inside the tool head.
According to the shape of the knife head, there are different effects:
1. Continuous edge Saw Blade: continuous saw diamond cutting blade, generally made by sintering method, water must be added when cutting to ensure the cutting effect, and the type of gap will be cut by laser.
2, knife head cutting piece: serrated disconnect, cutting speed, suitable for dry and wet cutting methods.
3, corrugated cutting piece: combined with the advantages of the first 1, 2, serrated continuous corrugated uniform convex and concave, improve the cutting speed, increase the service life.
Cutting Wheel,Diamond Disk Marble,10 Cut Off Wheel,Aluminum Oxide Cutting Wheel
Henan Jinlun Superhard Material Co., Ltd , https://www.jinlunsuperhard.com