CN105734257A - Heat treatment process of 30CrMnTi gears - Google Patents
Heat treatment process of 30CrMnTi gears Download PDFInfo
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- CN105734257A CN105734257A CN201410760472.7A CN201410760472A CN105734257A CN 105734257 A CN105734257 A CN 105734257A CN 201410760472 A CN201410760472 A CN 201410760472A CN 105734257 A CN105734257 A CN 105734257A
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Abstract
The invention discloses a heat treatment process of 30CrMnTi gears. The heat treatment process comprises the following steps: (1) receiving forged parts, carrying out customs clearance and signing (quality guarantee certificate); (2) carrying out 100% visual inspection of surface quality before normalizing; (3) normalizing for 4-5 hours at 950+/-10 DEG C (attaching record paper); (4) feeding metal and processing; (5) taking 30CrMnTi gears back and carrying out 100% visual inspection of surface quality (flaws and so on); (6) cooling via air for 4-5 hours at 620+/-10 DEG C in the absence of resistance; (7) feeding metal and processing; (8) taking the 30CrMnTi gears back, carrying out 100% visual inspection of surface quality, washing, plugging holes or preventing seepage and reasonably clamping a sample; (9) carburizing, cooling via air, tempering for 4 hours at the high temperature of 620+/-10 DEG C, and cooling via air or (9.1) carburizing, directly quenching, tempering for 3-4 hours at 280+/-10 DEG C, and cooling via air; (10) feeding metal for processing, and cutting carbon; (11) preheating for 45 minutes at 500-550 DEG C; (12) quenching via oil for 90-120 minutes at 830+/-10 DEG C; (13) detecting hardness; (14) carrying out cold treatment by cooling via water for 2 hours at 70 DEG C below zero; (15) tempering for 5-6 hours at 180+/-10 DEG C; (16) carrying out inspection (100% inspection); and (17) issuing a delivery list and a quality inspection list, feeding metal and processing.
Description
Technical field
The present invention relates to a kind of 30CrMnTi gear heat treatment technique.
Background technology
The adjustment in processing step and device parameter etc. of the existing 30CrMnTi gear heat treatment technique there is also certain empirical and technical, for the operator newly started with, also need to carry out substantial amounts of exercise and could grasp operation skill, produce the good product of quality.
Summary of the invention
In order to realize the purpose of the present invention, the present invention provides the 30CrMnTi gear heat treatment technique of a kind of easy to operate, quick, easy left-hand seat.
For solving above-mentioned technical problem, the present invention adopts the following technical scheme that
A kind of 30CrMnTi gear heat treatment technique, including following operation:
1), forging goods to, custom clearance, sign for (quality certificate)；
2), 100% range estimation appearance quality before normalizing；
3), 950 ± 10 DEG C/4-5h(of normalizing remarks record paper)；
4), metalworking is sent；
5) 100% range estimation appearance quality (crackle etc.), is fetched；
6) drag 620 ± 10 DEG C/4-5h air cooling, is removed；
7), metalworking is sent；
8), fetch that 100% range estimation surface quality, cleaning, consent or antiseepage, rationally dress be refreshing, test block one；
9), 620 ± 10 DEG C/4h of carburizing and air cooling high tempering air cooling；
9.1), may be used without: carburizing direct quenching and tempering 280 ± 10 DEG C/3-4h air cooling；
10), metal working is sent to cut carbon；
11), 500-550 DEG C/45min of preheating；
12), 830 ± 10 DEG C/90-120min of quenching oil；
13), detection hardness；
14), cold treatment-70 DEG C/2h water-cooled；
15), 180 ± 10 DEG C/5-6h of tempering；
16), inspection (100% inspection)；
17), open delivery receipt, quality control pickup send metalworking.
The present invention is simple to operate, and operator's skill requirement is low, and product quality is high.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described:
A kind of 30CrMnTi gear heat treatment technique, including following operation:
1), forging goods to, custom clearance, sign for (quality certificate)；
2), 100% range estimation appearance quality before normalizing；
3), 950 ± 10 DEG C/4-5h(of normalizing remarks record paper)；
4), metalworking is sent；
5) 100% range estimation appearance quality (crackle etc.), is fetched；
6) drag 620 ± 10 DEG C/4-5h air cooling, is removed；
7), metalworking is sent；
8), fetch that 100% range estimation surface quality, cleaning, consent or antiseepage, rationally dress be refreshing, test block one；
9), 620 ± 10 DEG C/4h of carburizing and air cooling high tempering air cooling；
9.1), may be used without: carburizing direct quenching and tempering 280 ± 10 DEG C/3-4h air cooling；
10), metal working is sent to cut carbon；
11), 500-550 DEG C/45min of preheating；
12), 830 ± 10 DEG C/90-120min of quenching oil；
13), detection hardness；
14), cold treatment-70 DEG C/2h water-cooled；
15), 180 ± 10 DEG C/5-6h of tempering；
16), inspection (100% inspection)；
17), open delivery receipt, quality control pickup send metalworking.
Claims (1)
1. a 30CrMnTi gear heat treatment technique, is characterized in that: include following operation:
1), forging goods to, custom clearance, sign for (quality certificate)；
2), 100% range estimation appearance quality before normalizing；
3), 950 ± 10 DEG C/4-5h(of normalizing remarks record paper)；
4), metalworking is sent；
5) 100% range estimation appearance quality (crackle etc.), is fetched；
6) drag 620 ± 10 DEG C/4-5h air cooling, is removed；
7), metalworking is sent；
8), fetch that 100% range estimation surface quality, cleaning, consent or antiseepage, rationally dress be refreshing, test block one；
9), 620 ± 10 DEG C/4h of carburizing and air cooling high tempering air cooling；
9.1), may be used without: carburizing direct quenching and tempering 280 ± 10 DEG C/3-4h air cooling；
10), metal working is sent to cut carbon；
11), 500-550 DEG C/45min of preheating；
12), 830 ± 10 DEG C/90-120min of quenching oil；
13), detection hardness；
14), cold treatment-70 DEG C/2h water-cooled；
15), 180 ± 10 DEG C/5-6h of tempering；
16), inspection (100% inspection)；
17), open delivery receipt, quality control pickup send metalworking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410760472.7A CN105734257A (en) | 2014-12-12 | 2014-12-12 | Heat treatment process of 30CrMnTi gears |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410760472.7A CN105734257A (en) | 2014-12-12 | 2014-12-12 | Heat treatment process of 30CrMnTi gears |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105734257A true CN105734257A (en) | 2016-07-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410760472.7A Pending CN105734257A (en) | 2014-12-12 | 2014-12-12 | Heat treatment process of 30CrMnTi gears |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105734257A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108823502A (en) * | 2018-08-07 | 2018-11-16 | 湖北威能达传动有限责任公司 | A kind of heat treatment process of 30CrMnTi steel large-scale spiral bevel gear |
| CN110195147A (en) * | 2019-06-02 | 2019-09-03 | 潘立英 | The preparation method of large medical equipment pin shaft |
| CN110205463A (en) * | 2019-06-02 | 2019-09-06 | 潘立英 | A kind for the treatment of process of pin shaft |
-
2014
- 2014-12-12 CN CN201410760472.7A patent/CN105734257A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108823502A (en) * | 2018-08-07 | 2018-11-16 | 湖北威能达传动有限责任公司 | A kind of heat treatment process of 30CrMnTi steel large-scale spiral bevel gear |
| CN110195147A (en) * | 2019-06-02 | 2019-09-03 | 潘立英 | The preparation method of large medical equipment pin shaft |
| CN110205463A (en) * | 2019-06-02 | 2019-09-06 | 潘立英 | A kind for the treatment of process of pin shaft |
| CN110195147B (en) * | 2019-06-02 | 2021-07-09 | 丁亮 | Preparation method of pin shaft for large medical equipment |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160706 |