Cold Forging Stainless Steel Sleeve Bushing Cr Coating 18000mm Length

Forgings involve many industries like mining, engineering, automobile, oil and gas. Material has carbon steel, alloy steel,stainless steel, brass and aluminium. Unit weight range from 0.05kg-1500kg.

Production of Cold Forging Stainless Steel Sleeve Bushing Cr Coating 18000mm Length

The heat treatment process to eliminate the Widmanderin structure of the forgings includes the following steps: Normalizing: First, the workpiece is heated to 650±10°C for the first heat preservation. After the first heat preservation period, the workpiece is heated to 820±5°C as soon as possible. Carry out the second heat preservation. After the second heat preservation for a period of time, the workpiece is sprayed and cooled until the temperature of the workpiece is not higher than 30 ° C; Quenching: the normalized workpiece is heated to 650 ± 10 ° C for the third heat preservation, After the third heat preservation for a period of time, heat the workpiece to 880±5°C as soon as possible for the fourth heat preservation, and after the fourth heat preservation for a period of time, water-cool the workpiece; tempering: heat the quenched workpiece to 650 The fifth heat preservation is performed at ±5°C. The fifth heat preservation time is proportional to the thickness of the workpiece. When the thickness of the workpiece is 1 inch, the heat preservation time is 1 to 1.5 hours. After the fifth heat preservation period, the workpiece is air-cooled. get forging The hoisting device for forgings includes a boom, the lower end of the boom is connected with at least three cross bars, each cross bar is respectively sleeved with a laterally movable sliding sleeve, and each sliding sleeve is provided with a lockable sliding sleeve. Lock nuts, hooks are attached to each sliding sleeve. The utility model is suitable for hoisting forgings, and has the advantages of simple structure, simple operation, convenient hoisting, labor saving and high work efficiency.

The forging waste heat utilization device includes a cover body with two ends open, the cover wall of the cover body is a hollow structure, the upper part of the cover body is provided with a water inlet hole and a steam outlet, and the lower part of the cover body is provided with a water outlet faucet. The invention can not only utilize the waste heat of the forgings reasonably, but also prevent the temperature in the workshop from rising, so that the working environment of the workers can be improved..