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Spindle box gear heat treatment technology

A spindle box and process technology, applied in heat treatment furnaces, heat treatment equipment, manufacturing tools, etc., can solve the problems of complex heat treatment process, low production efficiency, and lack of uniform specifications, so as to avoid repetitive procedures, improve work efficiency, The effect of simple process

Inactive Publication Date: 2016-06-29
CHONGQING YONGLIN MACHINERY EQUIP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the heat treatment process of headstock gears is relatively complicated, and there is no unified specification and standard, resulting in uneven quality of the produced headstock gears, and many repeated processes also make the production efficiency low, increase the labor burden of workers, and make the products The market competitiveness is not high
For some operators who have just entered the industry, there is no clear method and process, resulting in frequent mistakes and omissions during operation, and may even cause serious consequences

Method used

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Embodiment Construction

[0010] The technical solution disclosed by the present invention is a heat treatment process for spindle box gears, which is characterized in that it includes the following steps: blanking → forging blank → normalizing → rough machining → quenching and tempering → finishing (hobbing) → high frequency induction heating Quenching → low temperature tempering → grinding.

[0011] Further, in the normalizing process, the furnace temperature is firstly heated to 840°C±10°C, and then the workpiece is loaded, kept for 2 hours, and air-cooled.

[0012] Further, the quenching and tempering process is to first heat the furnace temperature to 830°C, then put the workpiece into the heat treatment furnace for heating, water cooling and quenching, the cooling medium is NaCl aqueous solution with a mass fraction of 25%, and then tempering, the tempering temperature is 570±10℃, holding time 50min, cooling method is oil cooling.

[0013] Further, the frequency is set to 250KHZ, all teeth are h...

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Abstract

The invention discloses a spindle box gear heat treatment technology. The technology comprises blanking, blank forging, normalization, rough machining, hardening and tempering, fine finishing (gear hobbing), high frequency induction heating quenching, low temperature tempering and grinding. The technology has simple processes, is free of many repeated processes and improves work efficiency.

Description

technical field [0001] The invention relates to a heat treatment process for a spindle box gear. Background technique [0002] At present, the heat treatment process of headstock gears is relatively complicated, and there is no unified specification and standard, resulting in uneven quality of the produced headstock gears, and many repeated processes also make the production efficiency low, increase the labor burden of workers, and make the products market competitiveness is not high. For some operators who have just entered the industry, there is no clear method and process, resulting in frequent mistakes and omissions during operation, and may even cause serious consequences. Contents of the invention [0003] In view of the above-mentioned defects in the prior art, the technical problem to be solved by the present invention is to provide a heat treatment process for the headstock gear, which is simple in process, eliminates many repetitive processes, and improves work ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D9/32C21D1/28C21D1/25C21D1/18
Inventor 毛永林
Owner CHONGQING YONGLIN MACHINERY EQUIP
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