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Manufacturing technology of large thin-wall stainless steel shaft sleeve with quenched surface

A manufacturing process, stainless steel technology, applied in the field of large-scale thin-walled stainless steel shaft sleeve manufacturing process, can solve the problems of poor quality of the sleeve, large deformation of the sleeve, etc., to control the deformation of the outer circle, ensure the quality of the inner circle, and have a good fit Effect

Inactive Publication Date: 2018-10-19
CHONGQING GENERAL IND (GRP) LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a surface-hardened large-scale thin-walled stainless steel bushing manufacturing process to improve the traditional large-scale thin-walled bushings in the manufacture of large deformation of the bushing and the poor quality of the sleeve

Method used

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  • Manufacturing technology of large thin-wall stainless steel shaft sleeve with quenched surface
  • Manufacturing technology of large thin-wall stainless steel shaft sleeve with quenched surface
  • Manufacturing technology of large thin-wall stainless steel shaft sleeve with quenched surface

Examples

Experimental program
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Effect test

Embodiment

[0055] see figure 1 - Figure 4 , this embodiment provides a surface-hardened large thin-walled stainless steel bushing manufacturing process, wherein the outer diameter of the large thin-wall is 500mm-800mm, and the wall thickness of the large-scale thin-wall is 1.5mm-8mm. The manufacturing process includes:

[0056] Step S1, rough turning the inner peripheral wall and the outer peripheral wall of the hollow forged blank 100 with thinner walls,

[0057] Step S2, finish turning the inner peripheral wall of the forged blank 100, and the inner peripheral wall has a surplus technological dimension,

[0058] Step S3, the forging blank 100 is set outside the deformation preventing tool 200, and the forging blank 100 is interference fit with the deformation preventing tool 200,

[0059] Step S4, performing surface quenching treatment on the peripheral wall of the forged blank 100,

[0060] Step S5, taking out the anti-deformation tooling 200 from the forging blank 100,

[0061]...

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Abstract

The invention provides a manufacturing technology of a large thin-wall stainless steel shaft sleeve with a quenched surface. The technology comprises the steps of roughly turning the inner circumferential wall and the outer circumferential wall of a hollow forging blank; finely turning the inner circumferential wall of the forging blank; sleeving an anti-deformation tool through the forging blank;performing interference fit on the forging blank and the anti-deformation tool; performing surface quenching on the outer circumferential wall of the forging bank; removing the anti-deformation toolfrom the forging blank; roughly and finely turning the inner circumferential wall of the forging blank; sleeving a main shaft of a large ventilator through a shaft sleeve; and finely turning the outercircumferential wall of the shaft sleeve. According to the technology, the deformation of the shaft sleeve can be greatly controlled during quenching the surface of the shaft sleeve; the refining turning quality of an inner circle of the shaft sleeve is high through the optimized turning method; after the shaft sleeve sleeves the main shaft of the ventilator, the shaft sleeve fits the main shaftof the ventilator, and thus the operation safety and reliability are improved.

Description

technical field [0001] The invention relates to the field of mechanical processing, in particular to a manufacturing process of a large-scale thin-walled stainless steel shaft sleeve with hardened surface. Background technique [0002] The large stainless steel bushing is set on the main shaft of the large fan, and the requirements for surface hardness are relatively high. The depth of the surface hardened layer is controlled within 2mm, and the precision of the outer circle of the bushing is high. In the manufacturing process, it is necessary to design special jigs for finishing turning and special grinding jigs, and the quality of the processed bushes is not stable. [0003] At present, in order to prevent the machining deformation of the workpiece in the finishing process, the radial auxiliary support parts in the fixture are widely used to control the processing deformation. However, the radial auxiliary support methods implemented by the radial auxiliary support parts a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00
CPCB23P15/00
Inventor 余伯海曹磊唐佩尧田伟
Owner CHONGQING GENERAL IND (GRP) LTD