How to accept aluminum alloy doors and windows
Many existing houses have reached a certain number of years, some need to replace aluminum alloy doors and windows, and some need to strengthen the main body. How to carry out professional repairs, the general owners will hire professional and technical workers, but how to accept after installation, but we need to master some basic acceptance knowledge. Xingke Hardware Network reminds you to start from the following aspects.
1. Look at the drawings. The type, specification, opening direction and installation position of the doors and windows used shall meet the design requirements.
2. Surface acceptance. The door and window installation must be firm, horizontal and vertical, and the height is consistent. The gap between the frame and the wall should be filled with full and compact, the surface is smooth and smooth, and there is no crack. The stuffing materials and methods should meet the design requirements.
3. Acceptance of embedded parts. The number, location and buried connection method of the embedded parts must meet the design requirements.
4, hardware acceptance. Door and window sashes should be flexible and open, without backlash, blockage and rebound. Hardware accessories should be complete and in the right position. The seal should be in a compressed state after closing.
5, the appearance of clean acceptance. The appearance quality of the doors and windows should be clean after installation. The large surface has no scratches, bumps and rust; the large surface of the coating film is smooth and smooth, uniform in thickness and free of pores.
The design, installation and acceptance of aluminum alloy doors and windows need to be carried out by qualified enterprises. Some houses are easy to encounter due to their long service life, and they need to replace aluminum alloy doors and windows. Xingke Hardware Network recommends that if you need to replace the aluminum alloy doors and windows, you should also find some professional and qualified enterprises or individuals. It is best to hire some professional aluminum doors and windows or supervisors during the inspection.
Concerned about surprises
Label: How to accept aluminum alloy doors and windows
Previous: Refrigeration machine - a brief introduction of the chiller Next: Overcome and solve the problem of window sash
Silicon Nitride can also be applied to solar cells. After the silicon nitride film is plated by PECVD, not only can it be used as an anti-reflection film to reduce the reflection of incident light, but also, in the deposition process of the silicon nitride film, hydrogen atoms of the reaction product enter the silicon nitride film and the silicon wafer. It acts as a passivation defect. Here, the silicon nitride nitrogen atomic number ratio is not strictly 4:3, but varies within a certain range depending on the process conditions, and the physical properties of the film corresponding to different atomic ratios are different.
For ultra-high temperature gas turbines, aircraft engines, electric furnaces, etc.
Silicon Nitride Ceramic Disc,Black Silicon Nitride Ceramic Disc,Ceramic Structure Disc,Plate Silicon Nitride Disc
SHENZHEN HARD PRECISION CERAMIC CO.,LTD , https://www.hardcm.com