Process for forging pressing jaw of ingot body of steel ingot

A technology of pressing jaws and steel ingots, which is applied in the field of steel ingot ingot body pressing jaws forging technology, which can solve the problems of limited forging space of forging equipment and limited lifting load of forging process, so as to avoid serious overload operation and reduce bearing load requirements, the effect of weight reduction

Inactive Publication Date: 2010-06-16
CHINA FIRST HEAVY IND +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The forging space of the existing forging equipment is limited, and the load that can be carried by the lifting and operating equipment in the forging process is also limited. If the forging process method of conventional riser operation jaws is continued to be used for large forging workpieces, it cannot be used in the existing forging process. Finished on forging equipment

Method used

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  • Process for forging pressing jaw of ingot body of steel ingot
  • Process for forging pressing jaw of ingot body of steel ingot
  • Process for forging pressing jaw of ingot body of steel ingot

Examples

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Embodiment

[0026] A 38000mm rolling mill back-up roll in a steel mill has a net weight of 129 tons, a forging of 165 tons, a steel ingot size of 259 tons, a steel ingot nozzle of 4.31 tons, a steel ingot body of 207.9 tons, and a steel ingot riser of 46.65 tons. It is forged by a 12,500-ton hydraulic press. The jaw forging process is as follows:

[0027] Use the plate chain of the steel turning machine to cover the end of the steel ingot nozzle; put the remaining riser of the steel ingot and the steel ingot body 250mm in the same amount removed by the riser process together between the upper and lower anvils of the hydraulic press, and turn it up to Φ1280mm, reserve 1700mm Long, cut off the remaining 45 tons of riser material, that is, complete the operation jaw process of the steel ingot ingot body. Then pre-draw the remaining ingot body to Φ2550mm, and cut off the steel ingot nozzle. At this time, the length of the billet is 4770 mm, and the actual weight of the steel ingot is 206.3 ...

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Abstract

The invention provides a process for forging a pressing jaw of an ingot body of a steel ingot, which sequentially comprises the steps of hanging and fixing the end part of a water gap of the steel ingot, forging an operation jaw, cutting a riser of the steel ingot and cutting the water gap of the steel ingot; the invention has the improvement that the step of forging the operation jaw is to carry out stretched forging on the riser of the steel ingot and the part of the ingot body of the steel ingot which is equivalent to the cutting quantity of the riser of the ingot body together, so the operation jaw becomes an operation jaw required when a manipulator or a sleeve barrel is operated; the volume of the ingot body of the steel ingot can be effectively decreased so as to be suitable for the forging space of the traditional forging equipment; and meanwhile, because of the decrease of the volume of the ingot body of the steel ingot, the weight of the steel ingot can be lowered, the requirement of the carrying load of hoisting and operating equipment is lowered, and the forging operation is flexible, convenient, quick, safe and reliable.

Description

technical field [0001] The invention relates to a forging process, in particular to a steel ingot ingot body pressing jaw forging process. Background technique [0002] With the rapid development of machinery industry technology, the forging workpieces commonly used in this industry are gradually developing towards the direction of large-scale, and the existing forging equipment of many enterprises are barely operating in the situation of exceeding the equipment capacity. The technical update of free forging equipment And the progress of transformation is far behind the pace of large-scale development of forging workpieces. [0003] At present, the forging process mainly includes free forging, die forging and tire die forging. Among them, free forging is a processing method in which the heated metal blank is placed between the upper and lower whetstones of the forging equipment, and impact force or pressure is applied to directly cause the blank to undergo plastic deformati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21J1/02
Inventor 杨志洪赵席春刘东海关明张昌海
Owner CHINA FIRST HEAVY IND
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