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A kind of cold forging process and mold of tank body

A technology of forming process and tank body, which is applied in the field of forming mold and process of tank body, can solve the problems of long cycle, the product cannot meet the hardness and strength, and there are many processes.

Active Publication Date: 2021-08-20
JIANGSU CHUANGYI PRECISION FORGING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The tank body needs multiple cold forging processes to form. After each cold forging, annealing, shot blasting, and pretreatment are required before the next process can be carried out. There are many processes and a long cycle. Deformation zone, so that the product cannot meet the requirements of hardness and strength

Method used

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  • A kind of cold forging process and mold of tank body
  • A kind of cold forging process and mold of tank body
  • A kind of cold forging process and mold of tank body

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Embodiment Construction

[0061] The present invention will be further described below in conjunction with specific examples.

[0062] The invention provides a forming process of a tank body, including blanking, high-temperature annealing once, billet making once, shot blasting once, pretreatment once, forming once, high-temperature annealing twice, billet making twice, shot blasting twice, Secondary pretreatment, secondary molding, tertiary pretreatment and tertiary molding. The structure of the final workpiece is as follows figure 1 shown.

[0063] Blanking: sawing a bar of appropriate length and diameter, the bar produced is as figure 2 shown. One-time high-temperature annealing: soften the bar, control its hardness between HRB62-72, and control the spheroidization rate of the bar to be ≥35%. One-time blanking: chamfering the connection between the two ends of the bar and the side wall, and the obtained bar is shown in 3. One shot blasting: The first shot blasting is performed on the bar to r...

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PUM

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Abstract

The invention provides a forming process of a tank body, including blanking, high-temperature annealing once, billet making once, shot blasting once, pretreatment once, forming once, high-temperature annealing twice, billet making twice, shot blasting twice, Secondary pretreatment, secondary molding, tertiary pretreatment and tertiary molding. The invention also provides molds used in the process for primary molding, secondary molding and tertiary molding respectively. The hardness and tensile strength of each part of the product of the invention can meet the requirements, and the process is compact, so that less chips and more forging are realized, the efficiency is improved, the cost is reduced, and mass production is realized.

Description

technical field [0001] The invention belongs to a forming die and a process for a tank body, and more particularly relates to a cold forging forming die and a process for a tank body. Background technique [0002] The tank body needs multiple cold forging processes to form. After each cold forging, annealing, shot blasting, and pretreatment are required to proceed to the next process. There are many processes and a long cycle. The deformation zone makes the product unable to meet the requirements of hardness and strength. Contents of the invention [0003] The object of the present invention is to provide a cold forging mold and process for segmentally cold forging each tank body of the pipe body. [0004] According to one aspect of the present invention, a forming process for a can body is provided, including [0005] Blanking: sawing bars of suitable length and diameter; [0006] One-time high-temperature annealing: soften the bar, control its hardness between HRB62-7...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21K21/06B21J13/02B21J13/14
CPCB21J13/02B21J13/14B21K21/06
Inventor 张花根季微微朱锋柏彬
Owner JIANGSU CHUANGYI PRECISION FORGING