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Performance Characteristics of Heavy Ductile Iron Well Cover
Source: clab66.cn Release time: 2023/10/27 9:42:18
Performance Characteristics of Heavy Ductile Iron Well Cover
1. High compressive strength: diamond shaped magnesium inspection, high compressive strength, high bending strength, high impact compressive strength, and strong ductility. Heavy nodular cast iron manhole covers, nodular cast iron manhole covers, and manufacturers of nodular cast iron manhole covers cannot crush and destroy manhole covers after long-term use. Ductile cast iron manhole covers can avoid the occurrence of "urban black hole" safety accidents.
2. How to alleviate the damage of nodular cast iron manhole cover? Professional knowledge and beautiful appearance: the design scheme of the surface texture of the diamond shaped magnesium manhole cover is good, the color is bright and adjustable, and the urban natural environment is cleaned.
Easy to use, light weight: the net weight of the commodity is only about one-third of that of nodular cast iron, which is conducive to transportation, installation and maintenance, and greatly reduces labor efficiency.
4. Anti theft of nodular cast iron manhole cover: magnesite manhole cover has no recycling value, which is of course anti-theft; According to user requirements and locking structure, complete the anti-theft of money in the well.
Strong aging resistance: magnesite manhole cover can be used at - 50 ℃ with reasonable methods, excellent processing technology and perfect advanced equipment+ It is normally used in natural environment of 300 ℃.
Corrosion resistance, abrasion resistance, automobile rolling resistance, ductile iron manhole cover has a long service life.
In order to better ensure the routine application of heavy nodular cast iron manhole covers, we should pay special attention to the installation quality. How to alleviate the damage of nodular cast iron manhole cover? Professional knowledge ensures accurate shape and size, firm installation, convenient opening, clean and beautiful surface. According to the standards and specifications for inspection of heavy nodular cast iron manhole covers, the following installation implementation plan is formulated:
The brick masonry wall of heavy nodular cast iron manhole cover shall confirm its inner diameter or width and surroundings according to the manhole cover specifications designed by the Planning Institute. When building the well, pay attention to that the inner diameter of the wellhead should be consistent with the inner diameter of the well cover and furnace, and the installed well cover should be flat with the ground. After the casting and laying of concrete or drain well seat, the cover shall be opened and cleaned immediately to prevent the inspection well cover from being integrated with the cement mortar or drain seat pouring, so as to prevent it from being opened in the future.
When installing the concrete ground well seat, the C25 concrete casting 20cm thick ring beam shall be plastered on the brick masonry of the wellhead. In order to keep the well seat in all directions, the overall flatness cannot be loosened, and the maintenance period of the concrete protective cover with a casting width of 40 cm for the well cover should be more than 10 days.
In order to keep the cover beautiful and generous, and the surface texture and ink are clear, during the construction of asphalt pavement, cover the well cover with a thin sheet of white iron or paint the cover with a waste oil brush to prevent petroleum asphalt oil from spraying on the well cover; When working on the concrete floor, the manhole cover shall be covered with plastic film to prevent the mixed mortar from staining the surface of the manhole cover and damaging the surface texture and handwriting. The surface of the well cover can also be cleaned with tap water after the construction is completed on the same day.
