Clutch gear quenching process

A process method and the technology of a one-way device, which are applied in metal material coating process, manufacturing tools, coating, etc., to achieve good economic and social benefits and easy operation

Inactive Publication Date: 2010-03-17
陆泽平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

And still there is no effective method to solve this defect th...

Method used

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  • Clutch gear quenching process

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Embodiment 1

[0011] A checker gear quenching process, the steps of which include incoming material inspection, charging, pre-cleaning, post-cleaning, tempering, inspection, shot blasting, rust prevention, etc.; It also includes carburizing and nitrogen quenching. In this stage, the highest temperature is 920°C, the lowest is 80°C, and the CP is reduced from 1.15% to 0.75%.

[0012] The cleaning oil temperature is 110°C, and the time required for the process from pre-cleaning to rust prevention is 410 minutes. The environment required for the quenching is: methanol flow 3L / H, propane flow 16L / min, ammonia flow 3L / min, balance air 16L / min, ammonia probe reference air flow 80mil / min, oil stirring speed 30hz.

Embodiment 2

[0014] A checker gear quenching process, the steps of which include incoming material inspection, charging, pre-cleaning, post-cleaning, tempering, inspection, shot blasting, rust prevention, etc.; It also includes carburizing and nitrogen quenching. In this stage, the highest temperature is 925°C, the lowest is 85°C, and the CP is reduced from 1.15% to 0.75%.

[0015] The cleaning oil temperature is 120°C. The time required for the process from front cleaning to rust prevention etc. is 430 minutes. The environment required for the quenching is: methanol flow 2.8L / H, propane flow 16L / min, ammonia flow 2.8L / min, balance air 16L / min, ammonia probe reference air flow 80-160mil / min, oil stirring speed 30hz.

Embodiment 3

[0017] A checker gear quenching process, the steps of which include incoming material inspection, charging, pre-cleaning, post-cleaning, tempering, inspection, shot blasting, rust prevention, etc.; It also includes carburizing and nitrogen quenching. In this stage, the highest temperature is 925°C, the lowest is 85°C, and the CP is reduced from 1.15% to 0.75%.

[0018] The cleaning oil temperature is 120°C. The time required for the process from front cleaning to rust prevention etc. is 440 minutes. The environment required for the quenching is: methanol flow 3L / H, propane flow 15L / min, ammonia flow 3L / min, balance air 15L / min, ammonia probe reference air flow 160mil / min, oil stirring speed 30hz.

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Abstract

The invention discloses a clutch gear quenching process. The process comprises the following steps: incoming materials inspecting, charging, primary cleaning, subsequent cleaning, annealing, testing,shot blasting, rust proofing and the like, wherein between the steps of primary cleaning and subsequent cleaning, carburizing and nitrogen quenching processes are performed at 85-925 DEG C, CP is 0.75%-1.15 %; the oil temperature in cleaning processes is 110-120 DEG C, the desired time between the primary cleaning process to the primary cleaning process is 410-440min; the desired environment for annealing is as follows: the flow of methanol is 2.8-3L/H, the flow of propane is 14-16L/min, the flow of ammonia is 2.8-3L/min, the flow of equilibrium air is 14-16L/min, the flow of reference air atthe ammonia probe is 80-160mil/min and the oil mixing speed is 30hz.

Description

technical field [0001] The invention relates to a processing method of a mechanical part, in particular to a quenching process method of a check gear. Background technique [0002] The one-way gear is the key component of the automobile starter. It is a vulnerable part and is used in a large amount in the auto parts market and the main engine supporting market. Due to the particularity of the product structure of the one-way device, the gear wall is thin, and it is easy to break, crack, and collapse the teeth under stress. The arm transmits torque through external force, and the gear is the starter torque to drive the engine to work. The moment the impact force reaches 400N·M, but the tooth wall is thin and the carburized layer is deep, it is easy to break the tooth and crack. And there is still no effective method to solve this defect that exists in the process of producing the one-way gear at present. Contents of the invention [0003] In order to overcome the defects ...

Claims

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Application Information

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IPC IPC(8): C21D1/18C21D9/32C23C8/00C23F17/00
Inventor 陆泽平
Owner 陆泽平
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