1. Connect two lines into one line. Then put the red line at the junction of the orange line and the brown line, overlapping.
2. Pick up and press the line in four directions clockwise.
3. Tighten the wire in four directions.
4. Repeat the above steps to form a square knot naturally.
Extended data:
The wire ropes commonly used for lifting equipment mainly include the following types:
1, phosphating coated steel wire rope (China patent), steel wire is phosphatized by manganese series or zinc-manganese series, which comprehensively improves the wear resistance and corrosion resistance of steel wire surface. The combination of phosphating film and grease can effectively inhibit fretting wear and completely solve the wear problem of steel wire rope, and the fatigue life is three times that of smooth steel wire rope with the same structure. Fatigue life can be verified by fatigue test.
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. On the basis of 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 has a short service life and the market demand drops sharply, so it will be completely eliminated by phosphating coated steel wire rope.
5. Steel wire rope for mooring in offshore engineering. Manganese phosphating coated steel wire rope is preferred for hoisting machinery in atmospheric environment, hot dip galvanized-phosphating double coated steel wire rope is preferred in severe corrosive environment, and marine steel wire rope is preferred in seawater.
Baidu Encyclopedia _ Wire Rope