CN103820623A - Heat treatment process of 42CrMoE piston rod - Google Patents
Heat treatment process of 42CrMoE piston rod Download PDFInfo
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- CN103820623A CN103820623A CN201210469108.6A CN201210469108A CN103820623A CN 103820623 A CN103820623 A CN 103820623A CN 201210469108 A CN201210469108 A CN 201210469108A CN 103820623 A CN103820623 A CN 103820623A
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- Prior art keywords
- piston rod
- treatment process
- 42crmoe
- 42crmoe piston
- thermal treatment
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- Pistons, Piston Rings, And Cylinders (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention discloses a heat treatment process of a 42CrMoE piston rod. The heat treatment process is characterized by comprising the following steps: (1) forging and pressing a 42CrMoE piston rod material; (2) quenching and tempering the 42CrMoE piston rod material; (3) quenching the 42CrMoE piston rod material under high frequency for 2 hours at the temperature of 1,050-1,200 DEG C, and then performing air cooling to room temperature. According to the heat treatment process, the surface hardness, the abrasion resistance, the corrosion resistance and the temper resistance of the material are improved. The heat treatment process is suitable for industrial use.
Description
Technical field
The present invention relates to the heat treating method using in a kind of factory.
Background technology
At present, reciprocation compressor comprises forging forming, normalizing, modified, stress-removal, high-frequency quenching and low-temperature tempering heat treatment technique by 42CrMoE piston rod thermal treatment process, and surface hardening hardness can only reach HRC50 left and right, and wear resistance is very poor.User proposes to improve the requirement of 42CrMoE piston rod surface hardness and wear resistance.If adopting traditional heat treating method to improve hardness value tends to cause the generation of hard surfacing crackle and scraps or at user's operational process Fracture, cause huge direct or indirect financial loss to user, its the acidproof brine corrosion of hardening of 42CrMoE piston rod induction-hardened surface is very poor, particularly in the atmosphere of coastland, hydrochlorate is very serious, and 42CrMoE piston rod surface forms spot corrosion or crackle and scraps.
Summary of the invention
The present invention is directed to the proposition of above problem, and a kind of welding rod of research and design, in order to solve the very poor shortcoming of its acidproof brine corrosion of existing thermal treatment.The technique means that the present invention adopts is as follows:
A thermal treatment process for 42CrMoE piston rod, is characterized in that described thermal treatment process comprises the following steps:
(1) described 42CrMoE piston rod material is carried out to forging forming;
(2) described 42CrMoE piston rod material is carried out to modifier treatment, first under 910 ℃ of-930 ℃ of temperature condition, be incubated and process 2-3 hour, the water-cooled to 100 of coming out of the stove ℃-120 ℃, takes out described 42CrMoE piston rod material air cooling that water-cooled is thick to room temperature; Again material is carried out to 500 ℃ of-550 ℃ of temper 4-5 hour, described 42CrMoE piston rod material is taken out to stove and accessory forced air cooling to normal temperature;
(3) described 42CrMoE piston rod material is carried out to high-frequency quenching, quenching temperature is 1050 ℃-1200 ℃, continues 2 hours, air-cooled to room temperature after quenching.
After quench treatment, can carry out oil cooling as preferred described thermal treatment process (3).
It can be medium frequency quenching that good frequency as preferred described thermal treatment process in step (3) quenches.
Compared with the prior art, the present invention has the following advantages:
1, described heat treating method has improved material surface hardness and fastness to rubbing.
2, described heat treating method has improved the erosion resistance of material.
3, described heat treating method has improved the anti-temper resistance of material
The present invention has simple, can be used for industrial mass manufacture and uses, and is suitable for the needs that large-scale industrial is produced, and has higher engineering using value, and it puts goods on the market and will produce Social benefit and economic benefit significantly.
Embodiment
The thermal treatment process of 1 one kinds of 42CrMoE piston rods of embodiment, is characterized in that described thermal treatment process comprises the following steps:
(1) described 42CrMoE piston rod material is carried out to forging forming;
(2) described 42CrMoE piston rod material is carried out to modifier treatment, first under 910 ℃ of-930 ℃ of temperature condition, be incubated and process 2-3 hour, the water-cooled to 100 of coming out of the stove ℃-120 ℃, takes out described 42CrMoE piston rod material air cooling that water-cooled is thick to room temperature; Again material is carried out to 500 ℃ of-550 ℃ of temper 4-5 hour, described 42CrMoE piston rod material is taken out to stove and accessory forced air cooling to normal temperature;
(3) described 42CrMoE piston rod material is carried out to high-frequency quenching, quenching temperature is 1050 ℃-1200 ℃, continues 2 hours, air-cooled to room temperature after quenching.
Described thermal treatment process (3) can be carried out oil cooling after quench treatment.It can be medium frequency quenching that the good frequency of described thermal treatment process in step (3) quenches.
Thermal treatment process of the present invention, has solved the problems such as crackle, hardness that 42CrMoE piston rod adopts conventional surface thermal treatment to produce are low, the acidproof brine corrosion of wear resistance is poor.The present invention can prevent that traditional high-frequency quenching from producing quenching crack, improved surface hardness, erosion resistance and impelling strength completely.
The above; it is only preferably embodiment of the present invention; but protection scope of the present invention is not limited to this; any be familiar with those skilled in the art the present invention disclose technical scope in; be equal to replacement or changed according to technical scheme of the present invention and inventive concept thereof, within all should being encompassed in protection scope of the present invention.
Claims (3)
1. a thermal treatment process for 42CrMoE piston rod, is characterized in that described thermal treatment process comprises the following steps:
(1) described 42CrMoE piston rod material is carried out to forging forming;
(2) described 42CrMoE piston rod material is carried out to modifier treatment, first under 910 ℃ of-930 ℃ of temperature condition, be incubated and process 2-3 hour, the water-cooled to 100 of coming out of the stove ℃-120 ℃, takes out described 42CrMoE piston rod material air cooling that water-cooled is thick to room temperature; Again material is carried out to 500 ℃ of-550 ℃ of temper 4-5 hour, described 42CrMoE piston rod material is taken out to stove and accessory forced air cooling to normal temperature;
(3) described 42CrMoE piston rod material is carried out to high-frequency quenching, quenching temperature is 1050 ℃-1200 ℃, continues 2 hours, air-cooled to room temperature after quenching.
2. a kind of 42CrMoE piston rod thermal treatment process according to claim 1 is characterized in that: described thermal treatment process (3) can be carried out oil cooling after quench treatment.
3. a kind of 42CrMoE piston rod thermal treatment process according to claim 1 is characterized in that: it can be medium frequency quenching that the good frequency of described thermal treatment process in step (3) quenches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210469108.6A CN103820623A (en) | 2012-11-16 | 2012-11-16 | Heat treatment process of 42CrMoE piston rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210469108.6A CN103820623A (en) | 2012-11-16 | 2012-11-16 | Heat treatment process of 42CrMoE piston rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103820623A true CN103820623A (en) | 2014-05-28 |
Family
ID=50755908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210469108.6A Pending CN103820623A (en) | 2012-11-16 | 2012-11-16 | Heat treatment process of 42CrMoE piston rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103820623A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104959500A (en) * | 2015-06-23 | 2015-10-07 | 柳州科尔特锻造机械有限公司 | Piston rod forging production method |
| CN106498298A (en) * | 2016-12-14 | 2017-03-15 | 苏州富艾姆工业设备有限公司 | A kind of processing technique of turning valve piston rod |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101363070A (en) * | 2007-08-07 | 2009-02-11 | 上海重型机器厂有限公司 | Water quenching and air cooling modified treatment technology of 42CrMo material |
| CN101368275A (en) * | 2007-08-15 | 2009-02-18 | 沈阳鼓风机(集团)有限公司 | 42CrMoE thermal treatment technique |
| CN101608252A (en) * | 2008-06-18 | 2009-12-23 | 沈阳鼓风机(集团)有限公司 | The 2Cr13 thermal treatment process |
-
2012
- 2012-11-16 CN CN201210469108.6A patent/CN103820623A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101363070A (en) * | 2007-08-07 | 2009-02-11 | 上海重型机器厂有限公司 | Water quenching and air cooling modified treatment technology of 42CrMo material |
| CN101368275A (en) * | 2007-08-15 | 2009-02-18 | 沈阳鼓风机(集团)有限公司 | 42CrMoE thermal treatment technique |
| CN101608252A (en) * | 2008-06-18 | 2009-12-23 | 沈阳鼓风机(集团)有限公司 | The 2Cr13 thermal treatment process |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104959500A (en) * | 2015-06-23 | 2015-10-07 | 柳州科尔特锻造机械有限公司 | Piston rod forging production method |
| CN106498298A (en) * | 2016-12-14 | 2017-03-15 | 苏州富艾姆工业设备有限公司 | A kind of processing technique of turning valve piston rod |
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Application publication date: 20140528 |
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