The cab of the bridge crane allows one person to sit.
Domestic production of steel wire rope varieties are as follows: 1. Phosphated coated steel wire rope (Chinese patent). The steel wire is treated with manganese and zinc-manganese phosphating. The wear resistance and corrosion resistance of the steel wire are comprehensively improved, and it is not easy to Wear and resistance to corrosion greatly improve the fatigue life of steel wire ropes. The fatigue life is 3 times that of smooth steel wire ropes with the same structure (under comparable conditions in the laboratory). Phosphating coated steel wire ropes are fully replacing all types of smooth steel wire ropes, and can also replace plating first and then The use of galvanized steel wire ropes with a thin zinc layer (corrosion resistance can be tested through salt spray tests) has long service life, lower unit cost, and better quality stability and reliability.
2. Galvanized steel wire rope, including hot-dip galvanizing and electro-galvanizing. Generally, hot-dip galvanizing has a thick zinc layer and electro-galvanizing has a thin zinc layer.
3. Stainless steel wire rope, with Mainly made of 304 or 316 stainless steel, which has excellent anti-corrosion effect but is expensive
4. Plastic-coated steel wire rope, based on carbon steel wire rope, the outer layer is coated with polyethylene, polypropylene or nylon
< p>5. Smooth steel wire ropes have a short service life and the market demand has dropped sharply. They will be completely eliminated by phosphate-coated steel wire ropes.For lifting machinery used in atmospheric environments, manganese-based phosphating-coated steel wire ropes are preferred, in heavily corrosive environments, hot-dip galvanized-phosphating double-coated steel wire ropes are preferred, and offshore steel wire ropes are preferred in seawater. When purchasing, please note that the name of the steel wire rope, such as phosphate-coated steel wire rope or 316 stainless steel wire rope, must be indicated on the purchase invoice to prevent unscrupulous companies from infringing upon their legitimate rights and interests. In addition, patented products generally have a patent number spray-marked on the outer packaging of the steel wire rope. , the warranty document should have main technical indicators, such as the type of phosphate coating and film weight (the weight, wear resistance, corrosion resistance, etc. of the phosphating film have an important impact on the service life of the steel wire rope), and are for reference only.