Lifting hooks scrapped relevant standards

Lifting hooks scrapped relevant standards
1, the torsional deformation 超过 is 10 °.
2, after welding the hook when worn.
3, the opening degree of increase in size than the original 15%.
4, the hook surface cracks.
5, the dangerous section or plastically deformed hook neck.
6, the size of the hook shank corrosion is less than 90% of the original size.
7, wear dangerous section of 10% of the original size.
8, when a crack tail root rib.
9, the sheet has lateral deformation of the hook plate,lever hoist when the deformation of the bending radius is greater than 20 times the thickness, the hook must be replaced film.
10, sheet hook up spindle wear 5% of the original size, should be scrapped mandrel.
11, the wear plate wear plate hook up to 50% of the original size,load chain should be scrapped wear plate.
12, the sheet bushing wear hook up to 50% of the original size,manual block the bushing should be scrapped.