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Engine rocker forging technology

An engine and process technology, applied in the direction of manufacturing tools, metal material coating technology, metal processing equipment, etc., can solve the problems affecting the safety of the engine, affecting the quality of processing, and reducing product quality, so as to avoid surface oxidation and improve the use of Life, the effect of ensuring product quality

Inactive Publication Date: 2018-09-21
ZHEJIANG YUEJIN FORGING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The engine rocker arm is a very important part of the engine. In order to ensure the machining accuracy and manufacturing cost, the blank is generally processed through the forging process, and finally processed in an acute machining process. However, the existing forging process is easy to cause oxidation of the forging, which affects the processing quality. , and the surface is severely worn during use, which greatly reduces the product quality and affects the safety of the engine. Therefore, it is necessary to propose a new forging process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] A forging process for an engine rocker arm, comprising the steps of:

[0060] S1. Material selection: Select steel with good anti-oxidation effect as the forging blank.

[0061] S2. Coating: Support the billet from both ends through hardwood, wipe with cleaning agent to remove surface oil and other dirt, and then apply anti-oxidation coating.

[0062] S3. Heating: Now put the billet into the heating furnace and heat it to 400-500 degrees Celsius, keep it warm for 1 hour-2 hours, then continue to heat it to 800 degrees Celsius to 950 degrees Celsius, and pass in protective gas, keep it warm for 1 hour.

[0063] S4. Forging: Take out the billet heated at high temperature, remove the surface scale, and then use a forging machine to perform upsetting forging to obtain a rough billet. Combined with reheating to the forging temperature, and repeated forging, the first stage rocker arm can be obtained.

[0064] S5. Heat treatment: heat-treat the rocker arm of the first stage ...

Embodiment 2

[0085] A forging process for an engine rocker arm, comprising the steps of:

[0086] S1. Material selection: Select steel with good anti-oxidation effect as the forging blank.

[0087] S2. Coating: Support the billet from both ends through hardwood, wipe with cleaning agent to remove surface oil and other dirt, and then apply anti-oxidation coating.

[0088] S3. Heating: Now put the billet into the heating furnace and heat it to 400-500 degrees Celsius, keep it warm for 1 hour-2 hours, then continue to heat it to 800 degrees Celsius to 950 degrees Celsius, and pass in protective gas, keep it warm for 1 hour.

[0089] S4. Forging: Take out the billet heated at high temperature, remove the surface scale, and then use a forging machine to perform upsetting forging to obtain a rough billet. Combined with reheating to the forging temperature, and repeated forging, the first stage rocker arm can be obtained.

[0090] S5. Heat treatment: heat-treat the rocker arm of the first stage ...

Embodiment 3

[0111] A forging process for an engine rocker arm, comprising the steps of:

[0112] S1. Material selection: Select steel with good anti-oxidation effect as the forging blank.

[0113] S2. Coating: Support the billet from both ends through hardwood, wipe with cleaning agent to remove surface oil and other dirt, and then apply anti-oxidation coating.

[0114] S3. Heating: Now put the billet into the heating furnace and heat it to 400-500 degrees Celsius, keep it warm for 1 hour-2 hours, then continue to heat it to 800 degrees Celsius to 950 degrees Celsius, and pass in protective gas, keep it warm for 1 hour.

[0115] S4. Forging: Take out the billet heated at high temperature, remove the surface scale, and then use a forging machine to perform upsetting forging to obtain a rough billet. Combined with reheating to the forging temperature, and repeated forging, the first stage rocker arm can be obtained.

[0116] S5. Heat treatment: heat-treat the rocker arm of the first stage ...

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Abstract

The invention discloses an engine rocker forging process. The technology comprises the following steps: S1, selecting a material: selecting steel with a good anti-oxidation effect as a forging blank;S2, coating: supporting of the blank from both ends by through hardwood, wiping using a detergent to remove surface oil stains and other dirt, and applying of an anti-oxidation coating; S3, heating; S4, forging; S5, heat treatment; and S6, surface treatment. The engine rocker forging technology adopts material selection and heat treatment processes to avoid surface oxidation during processing andensure the internal structure of a forging, chromium, high-wear resistance carbon black and titanium are simultaneously added to improve the wear resistance of a rocker product can guarantee the quality of the product, a surface treatment process is used to make the product adapted to working environments with different temperatures, and a protective film is formed on the surface during electrolysis and mixed liquid treatment, so the service life is greatly prolonged, and the use cost is reduced.

Description

technical field [0001] The invention relates to the technical field of machining, in particular to a forging process for an engine rocker arm. Background technique [0002] The engine rocker arm is a very important part of the engine. In order to ensure the machining accuracy and manufacturing cost, the blank is generally processed through the forging process, and finally processed in an acute machining process. However, the existing forging process is easy to cause oxidation of the forging, which affects the processing quality. , and the surface is severely worn during use, which greatly reduces the product quality and affects the safety of the engine. Therefore, it is necessary to propose a new forging process. Contents of the invention [0003] The purpose of the present invention is to solve the shortcomings in the prior art, and propose a forging process for the engine rocker arm. [0004] In order to achieve the above object, the present invention adopts the followi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/50C22C38/02C22C38/34C22C38/54C21D1/18C21D9/00B21J1/06B21J5/00C23C28/00
Inventor 吴建鑫朱维丰陈晓光张晓茅潘志宵孙正素
Owner ZHEJIANG YUEJIN FORGING
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