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You should be clear about several key points of selecting shadowless lamps
1. Look at the size of the hospital’s operating room, operation type, and operation utilization rate If it is a large operation, the operating room has large space and high operation utilization rate, then. The hanging double-head shadowless lamp is the first choice. The double-head shadowl...Read more -
Film forming mechanism of color coated steel coil
The coating film formation of color coated plate mainly includes coating adhesion and coating drying. A Color coated plate coating adhesion The first step of the adhesion of the steel strip substrate and the coating is the wetting of the color coated plate coating on the surface of the substrate....Read more -
Why does galvanized sheet rust?
Why does galvanized sheet rust? The zinc is corroded normally, otherwise it means that the zinc plate is impure and contains impurities, such as iron. Zinc protects other metals. Uneven zinc coating will expose the metal inside and cause corrosion. Or inadvertently contact with other metals to fo...Read more -
Standard practice for construction of geogrid in subgrade engineering
Construction process flow Construction preparation (material transportation and setting out) → base treatment (cleaning) → geogrid laying (laying method, overlapping width) → filler (method, particle size) → roll up the lattice → lower grid laying Build. Construction steps 1、 Foundation treatmen...Read more -
Classification of galvanized sheet according to production and processing methods
Classification of galvanized sheet according to production and processing methods ① Hot-dip galvanized steel sheet. The thin steel plate is immersed in the molten zinc bath to make its surface adhere to a layer of zinc. At present, it is mainly produced by continuous galvanizing process, that is,...Read more -
Storage time and precautions of galvanized steel coil
Although the galvanized sheet has good corrosion resistance and the galvanized layer is relatively thick, even if it is used outdoors for a long time, rust and other problems can also be avoided. However, many purchasers purchase steel plates in batches at one time, which may not be put into use ...Read more -
Influence of short fiber content of geotextile on dry and wet state
With the increase of PVA content in geotextile, the dry strength and wet strength of mixed geotextile have been greatly improved. The dry/wet breaking strength of pure polypropylene geotextile is 17.2 and 13.5kN/m respectively. Influence of short fiber content of 400g/m2 geotextile on dry and wet...Read more -
Welding of galvanized coil
The existence of zinc layer has brought some difficulties to the welding of galvanized steel. The main problems are: the increased sensitivity of welding cracks and pores, zinc evaporation and smoke, oxide slag inclusion, and the melting and damage of zinc coating. Among them, welding crack, air ...Read more -
Effect of Geogrid on Subgrade Surface Drainage
During the construction of geogrid, especially when the subgrade is strengthened, the longitudinal slope of the ditch should be the curve of the longitudinal light convergence of the ditch, and the phenomenon of water accumulation or overflow is not allowed on the inside of the curve. Water is in...Read more -
12 advantages of hot-dip galvanized steel grating
With the development of modern industry, more and more new materials have emerged. A new material often mentioned recently is the heat profile steel grating. This kind of material is often used in modern architecture and various fields, and can even be said to be an essential material. So why do ...Read more -
The laying of geotextile is not very troublesome
The laying of geotextile is not very troublesome. Generally, there will be no problems when you need to operate according to the requirements. If you don’t know how to lay geotextiles, you can take a look at the contents introduced in this article, which may be helpful for you to lay geotex...Read more -
Key points of using electric nursing bed
For the elderly, the home electric nursing bed will be more convenient for daily use. When I get older, my body is not very flexible, and it is very inconvenient to get on and off the bed. If you need to stay in bed when you are sick, a convenient and adjustable electric nursing bed can naturally...Read more
