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Part surface high-frequency quenching technology

A high-frequency quenching and workpiece surface technology, applied in the field of parts processing, can solve the problems of poor product quality, wear resistance, waste and consumption, etc., and achieve the effect of shortening the transformation time, easy to control operation, and fast heating speed.

Inactive Publication Date: 2019-01-29
南充隆固机械工业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the poor treatment effect of the current heat treatment process will result in unqualified product quality, low hardness, wear resistance, waste and consumption, directly affecting the service life, and prone to cracking

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A high-frequency quenching process for the surface of a part, comprising the following steps,

[0024] Step 1: Clean the workpiece; remove the dust on the surface of the workpiece with the cleaning solution, and then dry it. The drying time is 40 minutes to 50 minutes;

[0025] Step 2: Rapid heating; clamp the cleaned workpiece with a jig, and then place it in an inductor wound by a hollow copper tube, then rotate the jig, and pass in an alternating current of 1000Hz to 16000Hz to form an electric current of the same frequency on the surface of the workpiece. The induction current causes the surface or part of the part to be heated rapidly;

[0026] Step 3: Cooling and soaking in fire; use the temperature sensor to detect the surface or local temperature of the part, and when the temperature rises to 1000 ° C ~ 1100 ° C within 3s ~ 5s, spray the quenching medium through the liquid spray hole of the sensor with a concentration of 16 % AQ251 aqueous solution, spray for 6...

Embodiment 2

[0029] A high-frequency quenching process for the surface of a part, comprising the following steps,

[0030] Step 1: Clean the workpiece; remove the dust on the surface of the workpiece with the cleaning solution, and then dry it. The drying time is 40 minutes to 50 minutes;

[0031] Step 2: Rapid heating; clamp the cleaned workpiece with a jig, and then place it in an inductor wound by a hollow copper tube, then rotate the jig, and pass in an alternating current of 1000Hz to 16000Hz to form an electric current of the same frequency on the surface of the workpiece. The induced current causes the surface or part of the part to be heated rapidly;

[0032] Step 3: Cooling and soaking in fire; use the temperature sensor to detect the surface or local temperature of the part, and when the temperature rises to 1000°C to 1100°C within 3s to 5s, spray water through the spray hole of the sensor for 6s ~8s to cool and soak the parts;

[0033] Step 4: Complete the quenching and detect...

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Abstract

The invention belongs to the technical field of part processing, and particularly relates to a part surface high-frequency quenching technology. The part surface high-frequency quenching technology comprises the following steps that the first step, a workpiece is cleaned, specifically, impurities and dust on the surface of the workpiece are removed by cleaning fluid, then drying is conducted, andthe drying time ranges from 40min to 50min; the second step, rapid heating is conducted, specifically, the cleaned workpiece is clamped by a clamp and then is put into an inductor which is formed by hollow copper pipes in a winding mode, the clamp can be rotated, the alternating current with the frequency ranging from 1000Hz to 16000Hz is provided, the induced currents with the same frequency areformed on the surface of the workpiece, and therefore the surface or the local portion of the part can be rapidly heated; the third step, cooling soaking is conducted, specifically, the temperature ofthe surface or the local portion of the part is detected by a temperature sensor, and after the temperature ranges from 1000 DEG C to 1100 DEG C, cooling soaking is conducted on the part through liquid spraying holes of the inductor; and the fourth step, quenching is accomplished, the hardness of the surface or the local portion of the part is detected, specifically, the hardness of the surface or the local portion of the part is detected by a hardness detector, and after the requirement for the needed hardness is met, the quenching working procedure is accomplished.

Description

technical field [0001] The invention belongs to the technical field of parts processing, and in particular relates to a high-frequency quenching process for the surface of parts. Background technique [0002] High-frequency quenching is mostly used for surface quenching of industrial metal parts. It is a metal heat treatment method that generates a certain induced current on the surface of the workpiece, rapidly heats the surface of the part, and then rapidly quenches it. Induction heating equipment, that is, equipment for induction heating of workpieces for surface hardening. However, the poor treatment effect of the current heat treatment process will result in unqualified product quality, low hardness, wear resistance, wasteful consumption, directly affecting the service life, and prone to cracking. Contents of the invention [0003] In view of the problems raised by the above-mentioned background technology, the purpose of the present invention is to provide a high-fr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D1/18C21D1/10C21D1/60
CPCC21D1/10C21D1/18C21D1/60Y02P10/25
Inventor 卢占盈
Owner 南充隆固机械工业有限公司
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