Wire ropes commonly used for lifting equipment are as follows:
1. Phosphating coated steel wire rope (patented by China), the steel wire is phosphatized by manganese series or zinc-manganese series, which comprehensively improves the wear resistance and corrosion resistance of the steel wire surface. The compound action of phosphating film and grease can effectively inhibit fretting wear and completely solve the wear problem of wire rope. The fatigue life is three times that of smooth steel wire rope with the same structure, and it can be verified by fatigue test (it is most credible to do fatigue test in person). It is an upgraded product of smooth steel wire rope. It can also be used instead of galvanized steel wire rope with thin zinc layer after plating (through salt spray test or comparison with corrosion resistance), with long service life, low unit use cost and good stability.
2. Galvanized steel wire rope, including hot dip galvanizing and electro-galvanizing. Generally speaking, the galvanized zinc layer is thick and the galvanized zinc layer is thin.
3. Stainless steel wire rope, mainly made of 304 or 3 16 stainless steel, has excellent anticorrosion effect, but it is expensive.
4. Based on plastic-coated steel wire rope and carbon steel wire rope, the outer layer is coated with polyethylene, polypropylene or nylon.
5. Smooth steel wire rope, with short service life and sharp drop in market demand, will be completely eliminated by phosphating coated steel wire rope.
6. Steel wire rope for mooring in offshore engineering
7. Wire rope
For hoisting machinery used in atmospheric environment, manganese phosphating coated wire rope is preferred, hot dip galvanized-phosphating double-coated wire rope is preferred in heavy corrosive environment, and marine wire rope is preferred in seawater. Please note that the name of wire rope, such as phosphating coated wire rope or 3 16 stainless steel wire rope, must be indicated on the purchase invoice to protect your legitimate rights and interests. In addition, patented products will generally be marked with the patent number on the outer packaging of steel wire rope, and the main technical indicators such as the type and weight of phosphating film should be listed on the warranty book for reference only.