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There Are Many Types Of Hooks Aug 10, 2017

The hook is very wide in classification, generally include: Shackle, rings, rings, pear-shaped ring, long rings, combined rings, S hook, Nose hook, American hook Claw hook, eye-shaped slip hook, with insurance card rings screws, chain shackle, with unique, novel, high quality, safety characteristics.

The hook is the most common hoisting machine. The hook often uses the pulley group and other parts to hang on the hoisting mechanism's steel wire rope.

There are many types of hooks and different ways of classifying them. Lifting Hooks At the same time, because of different types of factors, the production method is also different.

The hook is divided into single hook and double crochet according to the shape, divided into forging hook and laminated hook according to manufacturing method.

Single hook manufacturing is simple, easy to use, Lifting Hooks but the force situation is not good, mostly used in the starting weight of 80 tons of work occasions;

Laminated hook by a number of pieces of cutting formed steel riveted, the individual plate cracks when the entire hook will not be damaged, good security, but larger, Lifting Hooks mostly used in large weight or hanging steel ladle crane.

The hook is often impacted in the course of operation and must be made of high quality carbon steel with good toughness.

Lifting Hook is the main parts of hoisting machinery, its material, manufacturing process, quality maintenance inspection, and so on any part of lax management, will directly cause accidents. Therefore, Lifting Hooks the hook must strictly control the material, inspection and scrap standards.

Material

The hook material must adopt the high quality low carbon sedative steel or the low carbon alloy

Plate Steel general application gb700-79 "ordinary carbon structural steel technical conditions" in the provisions of A3, C3 steel 16Mn steel.

The hook is divided into single hook and double crochet according to the shape, Lifting Hooks divided into forging hook and laminated hook according to manufacturing method.

Single hook manufacturing is simple, easy to use, but the force situation is not good, mostly used in the starting weight of 80 tons of work occasions; Laminated hook by a number of pieces of cutting formed steel riveted, the individual plate cracks when the entire hook will not be damaged, good security, but larger, Lifting Hooks mostly used in large weight or hanging steel ladle crane. The hook is often impacted in the course of operation and must be made of high quality carbon steel with good toughness.

The level of the hook depends on the mechanical properties of the finished hook. Rated weight and grade, with the rated weight and test load value of four types of hook, respectively, with the letter M, P, S, t expression.

The basic design load of the hook is equal to the test load (Fe).

M, P, S, T four class hooks for steel requirements:

1), steel should be made from open hearth, electric furnace and oxygen top blowing converter refining;

2), steel should be calm steel, good forging, Lifting Hooks after proper heat treatment can meet the standards of the mechanical properties specified;

3), the steel according to yb/t5148 stipulation test, should achieve the austenite 5th grain size or finer some grade.

Note: S, T-Class hooks for steel requirements higher.