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Forging method capable of enhancing compaction effect of 42CrMo continuous casting billet

A technology of continuous casting slabs and continuous casting round slabs, which is applied in the field of iron and steel material equipment manufacturing process control, can solve the problems of increasing forging time and forging times, increasing the risk of coarse grain of forgings, and low production efficiency, so as to achieve extended use Long life, enhanced compaction effect, high production efficiency effect

Active Publication Date: 2020-08-07
HENAN ZHONGYUAN SPECIAL STEEL EQUIP MFG CO LTD
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Problems solved by technology

This method has low production efficiency, increases forging time and forging times, increases loss, increases forging cost and increases the risk of coarse grains inside forgings

Method used

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  • Forging method capable of enhancing compaction effect of 42CrMo continuous casting billet
  • Forging method capable of enhancing compaction effect of 42CrMo continuous casting billet
  • Forging method capable of enhancing compaction effect of 42CrMo continuous casting billet

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Embodiment Construction

[0023] The implementation of the technical solution of the present invention mainly lies in the design of the pre-forging heating process and the control of the forging process. According to the size of the 42CrMo continuous casting slab, the pre-forging heating specification and forging deformation mode are reasonably designed; As well as the drawing speed and forging frequency during the forging of the precision forging machine to solve the internal compaction problem of the forging; after the forging is completed, carry out post-forging normalizing + tempering, straightening, physical and chemical testing, surface inspection, ultrasonic flaw detection and sawing blanking Waiting for work.

[0024] A forging method for enhancing the compaction effect of 42CrMo continuous casting slabs, the production process of which is as follows:

[0025] 42CrMo batching→electric arc furnace smelting→LF ladle smelting→VD vacuum degassing furnace→continuous casting→continuous casting slab h...

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Abstract

The invention relates to a forging method capable of enhancing the compaction effect of a 42CrMo continuous casting billet. According to the forging method, a conventional forging mode for a 42CrMo continuous casting billet forging is optimized and improved, a special heating standard is used for heating, the forging mode is changed, combined forging of SUF flat side forging with an oil press andforging forming with a precision forging machine is used, the reduction amount of the oil press, and the drawing speed and the forging frequency of the precision forging machine are controlled, and finally through a special heat treatment system, on the premise of ensuring the production efficiency, the forging method capable of enhancing the compaction effect of the 42CrMo continuous casting billet through a small forging ratio forging mode is realized.

Description

technical field [0001] The invention belongs to the technical field of manufacturing process control of iron and steel material equipment, and in particular relates to a forging method for enhancing the compaction effect of 42CrMo continuous casting slabs with a small forging ratio by using a hydraulic flat square forging and a precision forging machine to jointly produce 42CrMo continuous casting slabs. Background technique [0002] 42CrMo alloy structural steel forging produced by forging is widely used as the main material for equipment manufacturing, construction machinery and parts processing. With the continuous development of the forging industry, the requirements for the quality of forgings are also increasing. In addition to ensuring that the shape and dimensional accuracy of forgings meet the requirements, more attention is paid to the improvement of the internal comprehensive performance of products. The internal comprehensive performance of the product is largely...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21J5/00B21J1/06C21D8/00C21D1/28
CPCB21J5/002B21J1/06C21D8/005C21D1/28
Inventor 魏静静范琳璟徐群陈伟李海滨童利利
Owner HENAN ZHONGYUAN SPECIAL STEEL EQUIP MFG CO LTD
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