Hidden project acceptance refers to the inspection and acceptance of subdivisions and subprojects that will be closed by the next process during the construction of a house or a structure. Including: 1 acceptance of foundation pit and base trough. Prior to the foundation strengthening treatment (including cushioning, soil replacement, compaction, consolidation treatment and piling, etc.), the soil quality and bearing capacity of foundation pits and foundation trenches after excavation and leveling were checked and accepted. 2 acceptance of foundation works. Prior to the construction of the foundation, quality supervision agencies, design agencies, and construction units were invited to conduct inspections and acceptance at the site. Inspection and acceptance of the construction quality after the foundation strengthening treatment. 3 acceptance of basic engineering. Inspection and acceptance of the quality, structure, and dimensional deviations of ceiling frames and partition walls, water supply and drainage, gas pipelines, electrical pipelines, ventilation ducts, etc. Before the foundation tank is backfilled with soil, the inspection and acceptance of the quality, structure, and dimensional deviation of the foundation works shall be carried out. 4 Acceptance of steel bars and other projects. Before pouring concrete, before covering the roof protection layer, basement backfill backfill, and outer wall panels, the quantity, size deviation, structural requirements, and protective layer thickness of the steel frame, pipelines, components, embedded parts, etc., were performed. acceptance. 5 load-bearing structural engineering acceptance. Before the renovation of the ground, walls, roofs, ceilings, etc., the quality, structure, and dimensional deviations of the load-bearing components (including walls, columns, beams, plates, trusses, etc.) were checked and accepted. 6 acceptance of the waterproof project. The quantity, dimensional deviation, structural requirements, and thickness of the protective layer of the steel frame, pipelines, components, embedded parts, etc. shall be accepted. Before covering the roof protection layer, basement backfill backfill, and outer wall panels, check and check the quality, number of layers, methods, or cavity waterproof construction of the linoleum or other waterproof material before pouring the concrete. 7 renovation and equipment installation engineering acceptance. Prior to the construction of interior and exterior wall-filling walls and ceilings, inspection and acceptance of the quality, structure, and dimensional deviations of ceiling frames and partition walls, water supply and drainage, gas pipelines, electrical pipelines, ventilation ducts, etc. were carried out.
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Rod Seals
1. Components of piston rod seal:
Polyurethane, polyformaldehyde, rubber
2. Purpose and function of piston rod seal:
The rod seal belongs to the dynamic seal. It is the seal that moves with the piston rod. It is one of the important components on the hydraulic support.
3. Use position of piston rod seal:
Guide sleeve, piston
4. Working principle of piston rod seal:
It is used at the contact part between the guide sleeve and the outer cylinder to seal the emulsion in the outer cylinder.
5. What effects will be caused by improper use or operation of piston rod seal:
1. Improper selection of cavity support material will wear the cavity and piston rod.
2. The size of the friction pair is inappropriate, causing wear.
3. Improper thread guide angle of cylinder barrel and piston end wear the sealing ring.
4. The seal ring is worn due to improper installation guide angle of the seal.
5. The surface of cavity and piston rod is rough, with scratches and worn seals.
6. The outer cylinder leaks and the jack does not maintain pressure.
Rod Seal,Mechanical Seals,Rubber Seal,Sealing Element,Rubber Seal
ZXS SEALING PRODUCTS FACTORY , https://www.zxs-seal.com
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