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Screw blade carburization process and auxiliary apparatus

A technology of spiral blade and process method, which is applied in heat treatment equipment, metal material coating process, manufacturing tools, etc., can solve the problems of unsuitable forming spiral blade carburization, difficulty in popularizing continuous forming machines, and large volume of spiral blade, etc. The effect of reducing labor intensity of workers, high yield and uniform hardness

Inactive Publication Date: 2005-07-20
湖州和孚三联刀具厂(普通合伙)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the forming machine is used to produce the spiral blade, the raw steel strip must be formed into the blade first and then carburized. Otherwise, if the steel strip is carburized first, its hardness will be greatly increased, which is not conducive to mechanical forming.
However, the formed spiral blade is bulky and easily deformed during heat treatment, so the traditional carburizing process and equipment are not suitable for carburizing the formed spiral blade.
This just brings difficulty to the popularization of efficient spiral blade continuous forming machine

Method used

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  • Screw blade carburization process and auxiliary apparatus
  • Screw blade carburization process and auxiliary apparatus
  • Screw blade carburization process and auxiliary apparatus

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Embodiment Construction

[0015] Embodiment, the main auxiliary equipment adopted in the spiral blade carburizing process of the present invention includes a spiral blade carburizing positioning axis A and a spiral blade shape correction fixture B, and its specific structure is:

[0016] The shaft body 1 of the carburized positioning shaft A of the spiral blade is made of a thick-walled steel pipe, and the surface of the steel pipe is formed with a continuous spiral knife groove 2 corresponding to the spiral blade.

[0017] The special fixture B for spiral blade shape correction has three axial key grooves 13 evenly distributed on the surface of the core tube body 3, and each key groove 13 is respectively equipped with a sliding key 4, and one end of each sliding key 4 is connected to the end surface of the core tube body 3. On the parallel fixed plate 7, the port of the core tube body 3 is equipped with a nut 5, one end of the screw 6 is screwed into the nut 5, and the other end passes through the scre...

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Abstract

The present invention is screw blade carburizing process and apparatus. The screw blade carburizing process includes: mounting formed screw blade onto special locating shaft, carburizing in carburizing gas furnace, taking down the screw blade from the locating shaft, quenching, clamping the quenched screw blade while it is still hot and cooling naturally; superposing screw blades and tying with iron wire, and tempering in tempering furnace. The present invention solves the problem of screw blade easy to deform during heat treatment, and the carburizing process can well match with the continuous formation of screw blade for efficient, high quality and low cost production.

Description

technical field [0001] The invention relates to a carburizing process method and equipment for a forming tool. Background technique [0002] For a long time, the production of spiral blades for leather shaving machines and fleshing machines has been done manually. The process includes cutting steel strips, beating discs along the mold, solid carburizing with carbon powder, and drawing by hand. Then quench and temper. It has many production processes, high labor intensity, serious environmental pollution, high work efficiency and low cost, and the quality of the blade is difficult to achieve a complete standard. For this reason, the applicant has developed " spiral blade continuous forming machine " (patent No. is ZL01254483.3), thereby greatly improved the molding production efficiency of spiral blade. However, if the forming machine is used to produce the spiral blade, the raw steel strip must be formed into the blade first and then carburized. Othe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D9/22C23C8/20C23C8/80
Inventor 何志祥宋建强尉玉荣俞永泉鲍红忠
Owner 湖州和孚三联刀具厂(普通合伙)