CN105714055A - GCr15 steel heat treatment method - Google Patents
GCr15 steel heat treatment method Download PDFInfo
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- CN105714055A CN105714055A CN201410721605.XA CN201410721605A CN105714055A CN 105714055 A CN105714055 A CN 105714055A CN 201410721605 A CN201410721605 A CN 201410721605A CN 105714055 A CN105714055 A CN 105714055A
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- cooling
- heat treatment
- gcr15 steel
- thermal insulation
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- Heat Treatments In General, Especially Conveying And Cooling (AREA)
Abstract
The present invention discloses a GCr15 steel heat treatment method which is characterized by comprising the following steps: a) annealing, to be more specific, heating a workpiece to 790-810 DEG C, performing thermal insulation for 2-6 hours, cooling in the rate of 10-30 DEG C / h to below 650 DEG C, and taking out of a furnace for cooling in air; 2) isothermal annealing, to be more specific, heating the workpiece to 790-810 DEG C, performing thermal insulation for 2-6 hours, cooling in the furnace to 710-720 DEG C, performing thermal insulation for 1-2h, then cooling in the furnace to below 650 DEG C, and taking out of the furnace for cooling in air; 3) normalizing, to be more specific, heating the workpiece to 900-950 DEG C, and performing thermal insulation for 1-2h; 4) high-temperature tempering, to be more specific, performing thermal insulation at 650-700 DEG C, and cooling in air. The technical problem to be solved by the method is to provide a GCr15 steel guide rail heat treatment process, and the GCr15 steel guide rail heat treatment process is simple, and can improve the mechanical properties of GCr15 steel.
Description
Technical field
The present invention relates to a kind of GCr15 Heat-Treatment of Steel method.
Background technology
GCr15 steel is common a kind of high-carbon alloy steel, it is common to be applied on bearing and various mould.After GCr15 steel forges by normal technological specification, generally also need to carry out follow-up heat treatment.In general, heat treatment includes pretreatment and processes eventually；Conventional pretreating process is spheroidizing, processes technique eventually for quenching, lonneal.Under this Technology for Heating Processing, it is possible to obtain the mechanical properties such as good intensity, hardness, the instructions for use of general parts can be met, but its combination property still dislikes not enough in special and adverse circumstances, significantly limit the application of material.
Summary of the invention
Because the drawbacks described above of prior art, the technical problem to be solved is to provide a kind of GCr15 Heat-Treatment of Steel method, and this Technology for Heating Processing is simple, it is possible to increase the comprehensive mechanical property of GCr15 steel.
For achieving the above object, the invention provides a kind of GCr15 Heat-Treatment of Steel method, it is characterised in that comprise the steps, 1) annealing: workpiece heat to 790-810 DEG C is incubated 2-6 hour, with 10-30 DEG C/h, is cooled to less than 650 DEG C, air cooling of coming out of the stove；
2) isothermal annealing: workpiece heat to 790-810 DEG C is incubated 2-6h, stove is cooled to 710-720 DEG C of insulation 1-2h, then stove is cooled to less than 650 DEG C, air cooling of coming out of the stove；
3) normalizing: workpiece heat to 900 ~ 950 DEG C is incubated 1-2h；
4) high tempering: air cooling after 650 ~ 700 DEG C of insulations.
The invention has the beneficial effects as follows: Technology for Heating Processing of the present invention is simple, it is possible to increase the comprehensive mechanical property of GCr15 steel.
Detailed description of the invention
Technical scheme disclosed by the invention is a kind of GCr15 Heat-Treatment of Steel method, comprises the steps, 1) annealing: workpiece heat to 790 DEG C is incubated 6 hours, with 30 DEG C/h, is cooled to less than 650 DEG C, air cooling of coming out of the stove；2) isothermal annealing: workpiece heat to 810 DEG C is incubated 6h, stove is cooled to 720 DEG C of insulation 2h, then stove is cooled to less than 650 DEG C, air cooling of coming out of the stove；3) normalizing: workpiece heat to 900 DEG C is incubated 2h；4) high tempering: air cooling after 650 DEG C of insulations.
This Technology for Heating Processing is simple, obtains the mechanical properties such as good intensity, hardness, it is possible to increase the comprehensive mechanical property of GCr15 steel.
The preferred embodiment of the present invention described in detail above.Should be appreciated that those of ordinary skill in the art just can make many modifications and variations according to the design of the present invention without creative work.Therefore, all technical staff in the art, all should in the protection domain being defined in the patent claims under this invention's idea on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment.
Claims (1)
1. a GCr15 Heat-Treatment of Steel method, it is characterised in that comprise the steps, 1) annealing: workpiece heat to 790-810 DEG C is incubated 2-6 hour, with 10-30 DEG C/h, is cooled to less than 650 DEG C, air cooling of coming out of the stove；2) isothermal annealing: workpiece heat to 790-810 DEG C is incubated 2-6h, stove is cooled to 710-720 DEG C of insulation 1-2h, then stove is cooled to less than 650 DEG C, air cooling of coming out of the stove；3) normalizing: workpiece heat to 900 ~ 950 DEG C is incubated 1-2h；4) high tempering: air cooling after 650 ~ 700 DEG C of insulations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410721605.XA CN105714055A (en) | 2014-12-03 | 2014-12-03 | GCr15 steel heat treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410721605.XA CN105714055A (en) | 2014-12-03 | 2014-12-03 | GCr15 steel heat treatment method |
Publications (1)
| Publication Number | Publication Date |
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| CN105714055A true CN105714055A (en) | 2016-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201410721605.XA Pending CN105714055A (en) | 2014-12-03 | 2014-12-03 | GCr15 steel heat treatment method |
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| CN (1) | CN105714055A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114480797A (en) * | 2022-01-27 | 2022-05-13 | 石狮市汇星机械有限公司 | Heat treatment process method for producing knitting machine cam by using GCr15 steel |
-
2014
- 2014-12-03 CN CN201410721605.XA patent/CN105714055A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114480797A (en) * | 2022-01-27 | 2022-05-13 | 石狮市汇星机械有限公司 | Heat treatment process method for producing knitting machine cam by using GCr15 steel |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160629 |
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| WD01 | Invention patent application deemed withdrawn after publication |