A kind of austenitic stainless steel bar processing device and method

Abstract

The invention discloses an austenitic stainless steel bar machining device and method. A twisting unit and a clamping unit each comprises a clamping jaw, a double-acting double-piston-rod hydraulic cylinder fixedly arranged on a machine body, a clamping push head and a releasing push head, and the clamping push head and the releasing push head are connected to two piston rods of the double-actingdouble-piston-rod hydraulic cylinder and located on the two sides of the clamping jaw correspondingly; the twisting unit further comprises a machine shell fixedly connected with the machine body, themachine shell is internally provided with a driving gear, a clamping gear and a driven gear, the driving gear and the driven gear are engaged with the clamping gear, the driving gear is connected withan output shaft of a first driving motor, and the clamping gear is in sliding fit with the corresponding clamping jaw; the clamping device further comprises a clamping ring which is in sliding fit with the corresponding clamping jaw; and the clamping jaw in the twisting unit and the clamping jaw in the clamping unit are coaxial. An austenitic stainless steel bar is subjected to twisting deformation machining through the austenitic stainless steel bar machining device. Through the austenitic stainless steel bar machining device and method, it is achieved that the strength of the austenitic stainless steel bar is improved through twisting deformation.

Description

technical field [0001] The invention relates to the technical field of material processing, in particular to an austenitic stainless steel rod processing device and method. Background technique [0002] Commonly used metal materials can achieve increased strength through cold deformation, which is called work strengthening or work hardening. The structure of austenitic stainless steel at high temperature and room temperature is basically austenite, and the strength cannot be improved through phase transformation such as martensite transformation or bainite transformation. Therefore, processing strengthening is very important for austenitic stainless steels. [0003] Austenitic stainless steel sheets can be processed through cold rolling, and austenitic stainless steel wires and wires can be processed through cold drawing. However, for austenitic stainless steel bars, it is difficult to achieve work strengthening by cold rolling or cold drawing. The specific reasons are as...

AI Technical Summary

Problems solved by technology

However, for austenitic stainless steel bars, it is difficult to achieve work strengthening by cold rolling or cold drawing

The specific reasons are as follows: firstly, cold rolling and cold drawing will change the size of the processing object, such as thinning the steel plate and thinning the steel wire; secondly, the deformation resistance of the austenitic stainless steel bar is too high during cold rolling, and the rolls and passes are different. It is unbearable; moreover, the material is wound on the capstan during cold drawing, and the capstan provides pulling force to reduce the diameter of the material through the wire drawing die, while the diameter of the bar is relatively thick and difficult to wind; finally, for hoisting, transportation and storage, the austenitic stainless steel bar The length of the material is relatively short (mostly a few meters), and it is difficult to process and strengthen it with equipment such as a wire drawing machine

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