CN103060538A - Setting method in sections of high alloy steel vacuum heat treatment high-temperature region parameters - Google Patents
Setting method in sections of high alloy steel vacuum heat treatment high-temperature region parameters Download PDFInfo
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Abstract
The invention discloses a setting method in sections of high alloy steel vacuum heat treatment high-temperature region parameters. The method comprises setting of heating temperature of a high-temperature region first phase and first phase insulation time parameters, setting of heating temperature of a high-temperature region second phase and second phase insulation time parameters as well as setting of heating time parameters between the high-temperature region first phase and the high-temperature region second phase. The process method provides reasonable optimization on the heat treatment property values of the high alloy steel workpieces under the high-temperature region, the quenching stress of the high alloy steel workpiece decreases to minimum, heat treatment distortion amount of the workpiece is reduced, the performance of the material can be performed with maximum limit, so that the high red hardness and high wear resistance can be obtained, and good plasticity and toughness can be simultaneously obtained.
Description
Technical field
The establishing method of Heating temperature and soaking time parameter when the present invention relates to a kind of thermal treatment, particularly a kind of high quality steel when carrying out vacuum heat treatment, the phasing of the Heating temperature of its high temperature section and soaking time parameter.
Background technology
High quality steel typically refers to alloy content and is higher than 10% steel alloy, and the kinds such as rapid steel, high alloy die steel and stainless steel are generally arranged.Can be prepared into all kinds of high quality steel workpiece by high quality steel, such as high quality steel tool-class workpiece and high quality steel mould class workpiece etc.In heat treatment process, because vacuum heat treatment furnace is compared with conventional atmosphere (such as air) heat treatment furnace and is very different and advantage, therefore present in the heat treatment process of high quality steel employed heating-cooling apparatus extensively adopted vacuum heat treatment furnace.When high quality steel placed vacuum heat treatment furnace to heat, the temperature section of its heating was divided into: cold zone, three temperature sections of middle warm area and high-temperature zone.
The high quality steel workpiece can obtain certain plasticity, toughness and higher intensity and hardness after quenching, higher red hardness is particularly arranged.But the plasticity toughness of metal and hardness are two specific characters of contradiction each other, want to improve intensity, hardness and the wear resistance of workpiece, will inevitably reduce plasticity and the toughness of workpiece, otherwise too.As improve the red hardness of workpiece according to the product performance needs, just must improve quenching temperature and prolong the soaking time of workpiece in the high-temperature zone stage, plasticity and the toughness that will inevitably lose like this workpiece.This inconsistency, more outstanding under the heating under vacuum state that uses vacuum heat treatment furnace to carry out.Radiation heating is main because heating under vacuum is dependence, compares with conventional heat treatment furnace, and rate of heating is slow, and soaking time is with regard to corresponding prolongation, and this has brought difficulty for setting of heat treatment process parameter.Therefore, how reasonably to set Heating temperature and the soaking time of high quality steel workpiece in vacuum heat treatment furnace, with the quality of the finished product close contacting arranged.
Summary of the invention
The present invention in order to solve the problems of the technologies described above the technical scheme that adopts is:
The segmentation setting method of a kind of high quality steel vacuum heat treatment high-temperature zone parameter comprises the setting of setting, high-temperature zone subordinate phase Heating temperature and subordinate phase soaking time parameter of high-temperature zone fs Heating temperature and fs soaking time parameter and the setting of the heat temperature raising time parameter between high-temperature zone fs and the high-temperature zone subordinate phase.
Being set as of described high-temperature zone fs Heating temperature and fs soaking time parameter, Heating temperature are 980 ℃～1000 ℃, and soaking time accounts for 80% of whole high-temperature zone soaking time total amount.
Being set as of described high-temperature zone subordinate phase Heating temperature and subordinate phase soaking time parameter, Heating temperature are 1020 ℃～1300 ℃, and soaking time accounts for 15% of whole high-temperature zone soaking time total amount.
Being set as of heat temperature raising time parameter between described high-temperature zone fs and the high-temperature zone subordinate phase rises to the required heating-up time of subordinate phase Heating temperature by the fs Heating temperature and accounts for 5% of whole high-temperature zone soaking time total amount.
Useful technique effect of the present invention is: the present invention is during with the high quality steel vacuum heat treatment, and its Heating temperature and soaking time in high temperature section is carried out staging treating.This processing method has been carried out rational optimization to the high quality steel workpiece in the heat treatment parameter value of high-temperature zone, so that the quenching stress of high quality steel workpiece drops to minimum, reduced the Heat Treatment Distortion amount of workpiece, bring into play to greatest extent the performance of material, when obtaining high red hardness, high-wearing feature, also obtained good plasticity and toughness.
Description of drawings
Fig. 1 is technological operation synoptic diagram of the present invention.
Embodiment
The present invention is described in further detail in conjunction with Fig. 1.
The segmentation setting method of a kind of high quality steel vacuum heat treatment high-temperature zone parameter comprises the setting 2 of setting 1, high-temperature zone subordinate phase Heating temperature and subordinate phase soaking time parameter of high-temperature zone fs Heating temperature and fs soaking time parameter and the setting 3 of the heat temperature raising time parameter between high-temperature zone fs and the high-temperature zone subordinate phase.
The high quality steel that adopts among the following stated embodiment is selected high carbon high chromium alloy tool steel SKD61, and its net thickness is 20mm, and requiring Rockwell hardness after heat treatment is 42～48HRC.
The operating process of adopting technique of the present invention is as described in the following embodiment.
Embodiment 1
The final Heating temperature of setting SKD61 is 1030 ℃, and the total soaking time in high-temperature zone is 110min, then:
(1) being set as follows of high-temperature zone fs Heating temperature and fs soaking time parameter:
Heating temperature: 980 ℃
Soaking time: the total soaking time in high-temperature zone * 80%, i.e. 110min * 80%=88min.
(2) being set as follows of high-temperature zone subordinate phase Heating temperature and subordinate phase soaking time parameter:
Heating temperature: 1030 ℃
Soaking time: the total soaking time in high-temperature zone * 15%, i.e. 110min * 15%=16.5min.
(3) setting of the heat temperature raising time parameter between high-temperature zone fs and the high-temperature zone subordinate phase:
Be warming up to 1030 ℃ of required times from 980 ℃: the total soaking time in high-temperature zone * 5%, i.e. 110min * 5%=5.5min.
The technological operation synoptic diagram of present embodiment is seen Fig. 1.
Finished product Rockwell hardness detected result: 44HRC.
Embodiment 2
The final Heating temperature of setting SKD61 is 1300 ℃, and the total soaking time in high-temperature zone is 100min, then:
(1) being set as follows of high-temperature zone fs Heating temperature and fs soaking time parameter:
Heating temperature: 1000 ℃
Soaking time: the total soaking time in high-temperature zone * 80%, i.e. 100min * 80%=80min.
(2) being set as follows of high-temperature zone subordinate phase Heating temperature and subordinate phase soaking time parameter:
Heating temperature: 1300 ℃
Soaking time: the total soaking time in high-temperature zone * 15%, i.e. 100min * 15%=15min.
(3) setting of the heat temperature raising time parameter between high-temperature zone fs and the high-temperature zone subordinate phase:
Be warming up to 1300 ℃ of required times from 1000 ℃: the total soaking time in high-temperature zone * 5%, i.e. 100min * 5%=5min.
Finished product Rockwell hardness detected result: 45HRC.
The detection method of finished product Rockwell hardness is carried out according to State Standard of the People's Republic of China GB/T 230.1-2009 in above-described embodiment.
In the present invention in the described technique implementation procedure, Heating temperature and soaking time parameter between high-temperature zone fs, high-temperature zone subordinate phase and the high-temperature zone fs subordinate phase, adopt computer technology, arrange and move by control instrumentss such as computers.
High quality steel among the present invention can adopt rapid steel, high alloy die steel and stainless steel.
Claims (4)
1. the segmentation setting method of a high quality steel vacuum heat treatment high-temperature zone parameter is characterized in that: comprise the setting (2) of setting (1), high-temperature zone subordinate phase Heating temperature and subordinate phase soaking time parameter of high-temperature zone fs Heating temperature and fs soaking time parameter and the setting (3) of the heat temperature raising time parameter between high-temperature zone fs and the high-temperature zone subordinate phase.
2. the segmentation setting method of high quality steel vacuum heat treatment according to claim 1 high-temperature zone parameter, it is characterized in that: the setting (1) of described high-temperature zone fs Heating temperature and fs soaking time parameter is, Heating temperature is 980 ℃～1000 ℃, and soaking time accounts for 80% of whole high-temperature zone soaking time total amount.
3. the segmentation setting method of high quality steel vacuum heat treatment according to claim 1 high-temperature zone parameter, it is characterized in that: the setting (2) of described high-temperature zone subordinate phase Heating temperature and subordinate phase soaking time parameter is, Heating temperature is 1020 ℃～1300 ℃, and soaking time accounts for 15% of whole high-temperature zone soaking time total amount.
4. the segmentation setting method of high quality steel vacuum heat treatment according to claim 1 high-temperature zone parameter, it is characterized in that: the setting (3) of the heat temperature raising time parameter between described high-temperature zone fs and the high-temperature zone subordinate phase is, rises to the required heating-up time of subordinate phase Heating temperature by the fs Heating temperature and accounts for 5% of whole high-temperature zone soaking time total amount.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103725834A (en) * | 2013-12-26 | 2014-04-16 | 南阳汉冶特钢有限公司 | Method for producing low-crack-sensitivity-coefficient steel by sectional normalization heat treatment |
| CN106119475A (en) * | 2016-08-30 | 2016-11-16 | 芜湖三联锻造有限公司 | A kind of large-scale high alloy mould special thermal treatment technique |
| CN106191424A (en) * | 2016-09-06 | 2016-12-07 | 国家电网公司 | A kind of modification method of box heat treatment heating furnace temperature retention time |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5677323A (en) * | 1979-11-28 | 1981-06-25 | Kobe Steel Ltd | Heat treatment method of tool steel |
| CN1824819A (en) * | 2006-02-08 | 2006-08-30 | 周向儒 | High alloy die steel and heat treatment technique thereof |
| CN101892368A (en) * | 2010-07-23 | 2010-11-24 | 上海市机械制造工艺研究所有限公司 | Vacuum heat treatment process |
-
2011
- 2011-10-19 CN CN201110318452.0A patent/CN103060538B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5677323A (en) * | 1979-11-28 | 1981-06-25 | Kobe Steel Ltd | Heat treatment method of tool steel |
| CN1824819A (en) * | 2006-02-08 | 2006-08-30 | 周向儒 | High alloy die steel and heat treatment technique thereof |
| CN101892368A (en) * | 2010-07-23 | 2010-11-24 | 上海市机械制造工艺研究所有限公司 | Vacuum heat treatment process |
Non-Patent Citations (3)
| Title |
|---|
| 周体和等: "真空热处理对超硬高速钢M2Al组织性能的影响", 《金属热处理》 * |
| 曹明宇等: "关于高合金工具钢热处理工艺改进探讨", 《华北地区第十五届热处理技术交流会北京机械工程学会热处理分会第七届学术年会论文集》 * |
| 王欣: "W9Mo3Cr4V高速钢刀具的真空淬火工艺优化", 《第十四届华北地区热处理技术交流会》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103725834A (en) * | 2013-12-26 | 2014-04-16 | 南阳汉冶特钢有限公司 | Method for producing low-crack-sensitivity-coefficient steel by sectional normalization heat treatment |
| CN103725834B (en) * | 2013-12-26 | 2015-12-30 | 南阳汉冶特钢有限公司 | Adopt the method for the heat treated low crack-sensitivity coefficient steel of sectional type normalizing |
| CN106119475A (en) * | 2016-08-30 | 2016-11-16 | 芜湖三联锻造有限公司 | A kind of large-scale high alloy mould special thermal treatment technique |
| CN106191424A (en) * | 2016-09-06 | 2016-12-07 | 国家电网公司 | A kind of modification method of box heat treatment heating furnace temperature retention time |
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