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Production process of thick blade for plate shearing machine

A production process and shearing machine technology, which is applied in the production process of thick blades for shearing machines, can solve the problems of incompatibility with large production modes and insignificant effects, and achieve excellent verticality, small overall deformation, and lifting work. The effect of efficiency

Active Publication Date: 2022-06-24
马鞍山市申力特重工机械股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Through the control of the process, the invention makes the installation hole distance of the finished product within the controllable range, ensures the straightness and verticality of the overall long blade, and can reduce the manual inspection of the surface flatness of the overall long blade to a certain extent. workload, but the effect is not obvious, not suitable for modern industrialized mass production mode

Method used

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  • Production process of thick blade for plate shearing machine
  • Production process of thick blade for plate shearing machine
  • Production process of thick blade for plate shearing machine

Examples

Experimental program
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Effect test

Embodiment

[0024] A production process for thick blades for a shearing machine, the steps of which are:

[0025] S1. Forging blank: The thick blade for shearing machine is made from forging blank. The components of the forging blank are: C: 0.89%, Si: 0.20%, Mn: 0.45%, W: 0.45%, P : 0.02%, Cr: 11.74%, Ti: 0.55%, Co: 0.30%, V: 0.87%, Mo: 0.45%, and the rest is Fe; firstly, the forging blank is subjected to a segmented forging process, and the length of the forging blank is 1 / 2~2 / 3 is sent to the forging furnace for heating, and then taken out for forging. After the forging of one end is completed, the other section is sent to the forging furnace for heating, and then taken out for forging. Then, the forging blank is drawn and forged. ;

[0026] S2. Rough machining of blanks: anneal the forged blanks, put the forged blanks into the heat treatment furnace and heat up to 760 °C, keep the temperature for 5 hours, then remove the heat treatment furnace for air cooling to below 400 °C, and th...

Embodiment 2

[0033] A kind of thick blade production technology for shearing machine, its concrete processing steps are the same as embodiment 1, and difference is:

[0034] The composition of the forged blank in S1 by weight percentage is: C: 0.82%, Si: 0.18%, Mn: 0.35%, W: 0.37%, P: 0.02%, Cr: 10.32%, Ti: 0.43%, Co: 0.30%, V: 0.75%, Mo: 0.35%, the rest is Fe;

[0035] In S2, the forging blank is annealed: first, put the forging blank into the heat treatment furnace and heat it up to 770 °C, and keep it for 4 hours, then remove it from the heat treatment furnace for air cooling to below 400 °C, and then move it into the heat treatment furnace and heat it up to 620 °C for 2 hours. hours, and then cooled to 150 ℃ with the furnace, removed from the heat treatment furnace and air-cooled;

[0036] In S3, the rough processed forging blank is subjected to quenching and tempering heat treatment: the forging blank is preheated, the temperature is raised to 400 °C, and the temperature is kept for ...

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Abstract

The invention discloses a production process of a thick blade for a plate shearing machine, and belongs to the technical field of production of blades for plate shearing machines, and the production process specifically comprises the following steps: S1, forging a blank: manufacturing the thick blade for the plate shearing machine by adopting the forged blank; s2, rough machining of the blank is conducted, specifically, the forged blank is subjected to annealing treatment, then the forged blank is made into a workpiece with the finish machining allowance, and first-time surface flatness detection is conducted; s3, quenching and tempering heat treatment of the blank: quenching the forged blank, and tempering after quenching; s4, primary finish machining of the blank is conducted, specifically, primary finish machining is conducted on the forged blank subjected to heat treatment, and secondary surface flatness detection is conducted after primary finish machining; and S5, secondary finish machining of the blank: carrying out final heat treatment on the forged blank, cooling, and then carrying out further finish machining on the forged blank subjected to heat treatment. According to the invention, the production process is improved, and two times of surface flatness detection are added in the blade manufacturing process, so that the comprehensive performance of the blade is effectively improved.

Description

technical field [0001] The invention belongs to the technical field of blade production for a shearing machine, and in particular relates to a production process for a thick blade for a shearing machine. Background technique [0002] The shearing machine is used for cutting metal plates. The shearing machine blade relies on the shearing machine tool holder to cut the metal plate up and down through the mechanical hydraulic system, so as to complete the process of cutting the plate. The blade used in the shearing machine generally requires strong comprehensive performance. If the performance is not good, it is easy to deform and chip during the shearing process. Therefore, the blade of each batch of shearing machine needs to be tested for surface flatness. Inspection, within the tolerance range is judged as a qualified product. At present, the flatness detection of thick blades for shearing machines is still measured by manual hand-held flatness instruments, which have large...

Claims

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Application Information

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IPC IPC(8): B23P15/40
CPCB23P15/40
Inventor 曹红霞孙路路聂杨袁向荣
Owner 马鞍山市申力特重工机械股份有限公司