Polishing technique of ring stainless steel precise parts and preparation method thereof

Abstract

The invention provides a polishing technique of an annular stainless steel precision component and a preparation method thereof, which is applied to the machine building industry and can obtain a surface with higher brightness and maintain necessary acute angles on the premise of not affecting the size precision of the component. The polishing technique and the preparation method are characterized in that: a strap is used for closely and evenly wrapping from one end of a round metal bar to the other end thereof in a clockwise manner; the beginning end of the strap is clamped with the round metal bar by a tightener, while the other end thereof is fastened and fixed with the round metal bar by a fine line, thus forming a polishing bar with a surface evenly coated with polishing wax; a plurality of components to be polished are sheathed on the polishing bars and then a stop collar is arranged; the tightener is held by the left hand, and the stop collar and the end of the polishing bar are grabbed by the right hand; the components to be polished are slowly and horizontally moved to get close to the excircle of a soft cloth polishing wheel with rotates at a high speed and is coated with polishing wax; force is gradually increased, and the components to be polished between the tightener and the stop collar are moved back and forth until the components to be polished meet polishing requirements.

Description

Technical field: [0001] The invention relates to a polishing technology in mechanical processing, in particular to a process method for surface polishing of a small circular stainless steel precision part, which achieves a bright surface and maintains a necessary acute angle without affecting the dimensional accuracy of the part. Background technique: [0002] In order to improve the performance or appearance quality of the products, many precision parts of small circular stainless steel need to be polished to obtain higher surface roughness and brightness without affecting the dimensional accuracy of the original parts. For example, the rear ferrule, an important part of the stainless steel double ferrule pipe joint, is a typical case. It needs to obtain a surface hardness layer through heat treatment (the thickness of the hard layer is only 0.025-0.05mm). Excellent surface roughness and brightness, but also maintain a sharper edge (acute angle). Polishing is required due ...

AI Technical Summary

Problems solved by technology

There are many common polishing methods. One is to use chemical or electrolytic polishing methods. Due to chemical or electrolytic effects, a certain amount of corrosion is caused to the surface of the polished part. The general corrosion amount is 0.03 to 0.08 mm. The hardness layer is corroded; the second is to adopt mechanical vibration polishing method, because the high-hardness polishing material will grind the sharp edge (acute angle) of the polished part; the third is to use traditional manual polishing, which not only has low work efficiency, but also causes deformed and damaged

None of the above methods can meet the requirements

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