CN104805262A - Ball screw heat treatment process - Google Patents
Ball screw heat treatment process Download PDFInfo
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- CN104805262A CN104805262A CN201510154907.8A CN201510154907A CN104805262A CN 104805262 A CN104805262 A CN 104805262A CN 201510154907 A CN201510154907 A CN 201510154907A CN 104805262 A CN104805262 A CN 104805262A
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Abstract
A ball screw heat treatment process comprises a quenching process and a tempering process, and is characterized in that in the quenching process, at first, when being heated to a critical temperature, a workpiece is quickly immersed in a non-salt cooling liquid to be cooled, and then when being heated for the second time to the critical temperature, the workpiece is quickly immersed in a nitrate cooling liquid to be cooled; the tempering process comprises high temperature tempering and low temperature tempering; at first, the high-temperature tempering is performed, and when being heated to 580-600 DEG C, the workpiece is quickly immersed in a salt solution for cooling; then the low-temperature tempering is performed, when being heated to 280-300 DEG C, the workpiece is stopped being heated, and is cooled with a furnace. The ball screw heat treatment process is simple and convenient in operation, and reliable in quality, can effectively prevent the workpiece from deformation and cracking, and the workpiece qualified rate is more than 98%.
Description
Technical field
The present invention relates to the thermal treatment process in a kind of mechanical workout, particularly a kind of ball screw thermal treatment process.
Background technology
In prior art, the length-to-diameter ratio of conventional ball screw is greater than 19, material is GCR15 steel, and the thermal treatment process in processing often adopts intermediate frequency, high frequency, nicarbing process, and elongated screw mandrel easily bends or cracking phenomena.
Summary of the invention
The object of the invention is to overcome above-mentioned weak point, and provide one to prevent workpiece deformation, cracking, the ball screw thermal treatment process that qualification rate is high.
For achieving the above object, the technical solution used in the present invention is: a kind of ball screw thermal treatment process, comprise quenching, tempering process, it is characterized in that in quenching technology, first by workpiece heat to critical temperature time, cool in the cooling fluid of the non-saline solution of quick immersion, again second time by workpiece heat to critical temperature, cool in quick immersion Nitrates cooling fluid, tempering process comprises high tempering, low-temperaturetempering, first carry out high tempering, during by workpiece heat to 580 DEG C ~ 600 DEG C, cool in quick immersion saline solution, carry out low-temperaturetempering again, heating is stopped when being heated to 280 DEG C ~ 300 DEG C, furnace cooling.
The present invention is owing to adopting above process modification, easy and simple to handle, reliable in quality, and can effectively prevent workpiece deformation, cracking, workpiece qualification rate reaches more than 98%.
Embodiment
A kind of ball screw thermal treatment process, comprise quenching, tempering process, wherein in quenching technology, first by workpiece heat to critical temperature 890 DEG C ~ 910 DEG C time, cool in the cooling fluid of the non-saline solution of quick immersion, again second time by workpiece heat to critical temperature, cool in quick immersion Nitrates cooling fluid, tempering process comprises high tempering, low-temperaturetempering, first carries out high tempering, during by workpiece heat to 580 DEG C ~ 600 DEG C, cool in quick immersion saline solution, carry out low-temperaturetempering again, when being heated to 280 DEG C ~ 300 DEG C, stop heating, furnace cooling.
Claims (1)
1. a ball screw thermal treatment process, comprise quenching, tempering process, it is characterized in that in quenching technology, first by workpiece heat to critical temperature time, cool in the cooling fluid of the non-saline solution of quick immersion, again second time by workpiece heat to critical temperature, cool in quick immersion Nitrates cooling fluid, tempering process comprises high tempering, low-temperaturetempering, first carries out high tempering, during by workpiece heat to 580 DEG C ~ 600 DEG C, cool in quick immersion saline solution, carry out low-temperaturetempering again, when being heated to 280 DEG C ~ 300 DEG C, stop heating, furnace cooling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510154907.8A CN104805262A (en) | 2015-04-03 | 2015-04-03 | Ball screw heat treatment process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510154907.8A CN104805262A (en) | 2015-04-03 | 2015-04-03 | Ball screw heat treatment process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104805262A true CN104805262A (en) | 2015-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510154907.8A Pending CN104805262A (en) | 2015-04-03 | 2015-04-03 | Ball screw heat treatment process |
Country Status (1)
| Country | Link |
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| CN (1) | CN104805262A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112372257A (en) * | 2020-12-02 | 2021-02-19 | 浙江凯亚德轴承制造有限公司 | Machining process of ball screw |
-
2015
- 2015-04-03 CN CN201510154907.8A patent/CN104805262A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112372257A (en) * | 2020-12-02 | 2021-02-19 | 浙江凯亚德轴承制造有限公司 | Machining process of ball screw |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150729 |
|
| WD01 | Invention patent application deemed withdrawn after publication |