CN104762572A - Stress relieving process of hard alloy - Google Patents
Stress relieving process of hard alloy Download PDFInfo
- Publication number
- CN104762572A CN104762572A CN201510109797.3A CN201510109797A CN104762572A CN 104762572 A CN104762572 A CN 104762572A CN 201510109797 A CN201510109797 A CN 201510109797A CN 104762572 A CN104762572 A CN 104762572A
- Authority
- CN
- China
- Prior art keywords
- stress
- wimet
- stress relieving
- room temperature
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/16—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of other metals or alloys based thereon
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention discloses a stress relieving process of a hard alloy, which includes following steps: (S1) cryogenically cooling the hard alloy to -150 - -200 DEG C and maintaining the temperature for 2-5 h; and (S2) after the cryogenically cooling process finished, increasing the temperature to room temperature and performing stress test. The stress relieving process can effectively relieve stress, is good in stress relieving effect, is not more than 22 h in process period, can greatly reduce the process period of the stress relieving, can satisfy market demand, can reduce production cost and can effectively control inventory. In addition, the stress relieving process is free of heating treatment, so that no damage is caused onto surface organ of a material and forced refrigeration from a high temperature is unnecessary, thereby ensuring original characteristics of the material.
Description
Technical field
The present invention relates to a kind of Wimet, be specifically related to a kind of process for relieving stress of Wimet; Belong to technical field of alloy material.
Background technology
Wimet has that hardness is high, wear-resisting, intensity and a series of premium properties such as toughness is better, heat-resisting, corrosion-resistant, applies very extensive in industrial production and processing.We know, the impact of stress on material property is fatal, and stress is not eliminated and can be caused material in processing or use procedure, occur the phenomenon ftractureed, and stress is excessive, and a lot of profiled parts also can be caused to machine.In prior art, be the method adopting nature to eliminate stress mostly, can realize disappearing and answer, but excessive cycle, and time cost is very high, cannot meet the need of market.Given this, in the urgent need to developing a kind of new process for relieving stress.
Summary of the invention
For solving the deficiencies in the prior art, the object of the present invention is to provide a kind of process for relieving stress of Wimet.
In order to realize above-mentioned target, the present invention adopts following technical scheme:
The process for relieving stress of Wimet, comprises the following steps:
S1, by Wimet deep cooling to-150 ~-200 DEG C, and keep 2 ~ 5h;
Return to room temperature after S2, sub-zero treatment, carry out stress test.
Preferably, in abovementioned steps S1, in 3 ~ 5h, Wimet is down to cryogenic temperature from room temperature.
Preferably, in abovementioned steps S1, cooling rate is 1 DEG C/min.
Preferred as one, in abovementioned steps S2, after sub-zero treatment, adopt the mode that nature heats up to make Wimet return to room temperature.
Preferred as another kind, in abovementioned steps S2, after sub-zero treatment, adopt the mode of boosting to make Wimet return to room temperature.
Further, the process time of whole process for relieving stress is less than 22h.
Usefulness of the present invention is: process for relieving stress of the present invention can realize effectively eliminating stress, and disappearing should be effective, and process cycle≤22h substantially reduces the stress relieving cycle, meets the need of market, and reduces production cost and effectively can control stock; And, do not carry out heat treated in technique of the present invention, material surface is organized and does not cause damage, and without the need to carrying out pressure cooling from high temperature, ensure that the original characteristic of material.
Embodiment
Below in conjunction with specific embodiment, concrete introduction is done to the present invention.
The process for relieving stress of Wimet of the present invention, comprises the following steps:
S1, by Wimet deep cooling to-150 ~-200 DEG C, and keep 2 ~ 5h, preferred cooling rate is 1 DEG C/min, in 3 ~ 5h, Wimet is down to cryogenic temperature from room temperature;
Return to room temperature after S2, sub-zero treatment, adopt the mode that nature heats up or boosting heats up that Wimet is returned to room temperature, then carry out stress test.
Adopt the mode of X-ray residual stress test, the X-direction stress remnants and the Y-direction stress that contrast the Wimet after natural effect of the prior art, quench treatment and sub-zero treatment of the present invention are remaining, and test result is in table 1.
Table 1 three kinds of process for relieving stress contrasts
In order to understand the present invention better, brief description carries out to natural effect and quench treatment as follows:
Naturally disappear and answer: be placed in natural environment by material over time, stress is slowly eliminated naturally.
Quench treatment: heating materials is incubated for some time, the then rapid process cooled to certain temperature.
To sum up, the process for relieving stress of sub-zero treatment of the present invention, compared to naturally disappear should with quench treatment, its advantage mainly contain following some: (1), stress relieving are effective; (2), do not carry out heat treated in technological process, material surface is organized and does not cause damage, and without the need to carrying out pressure cooling from high temperature, ensure that the original characteristic of material; (3), process time section, suitable with the time of quench treatment.
More than show and describe ultimate principle of the present invention, principal character and advantage.The technician of the industry should understand, and above-described embodiment does not limit the present invention in any form, the technical scheme that the mode that all employings are equal to replacement or equivalent transformation obtains, and all drops in protection scope of the present invention.
Claims (6)
1. the process for relieving stress of Wimet, is characterized in that, comprises the following steps:
S1, by Wimet deep cooling to-150 ~-200 DEG C, and keep 2 ~ 5h;
Return to room temperature after S2, sub-zero treatment, carry out stress test.
2. the process for relieving stress of Wimet according to claim 1, is characterized in that, in described step S1, in 3 ~ 5h, Wimet is down to cryogenic temperature from room temperature.
3. the process for relieving stress of Wimet according to claim 1, is characterized in that, in described step S1, cooling rate is 1 DEG C/min.
4. the process for relieving stress of Wimet according to claim 1, is characterized in that, in described step S2, after sub-zero treatment, adopts the mode that nature heats up to make Wimet return to room temperature.
5. the process for relieving stress of Wimet according to claim 1, is characterized in that, in described step S2, after sub-zero treatment, adopts the mode of boosting to make Wimet return to room temperature.
6. the process for relieving stress of the Wimet according to any one of claim 1-5, is characterized in that, the whole process time is less than 22h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510109797.3A CN104762572A (en) | 2015-03-13 | 2015-03-13 | Stress relieving process of hard alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510109797.3A CN104762572A (en) | 2015-03-13 | 2015-03-13 | Stress relieving process of hard alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104762572A true CN104762572A (en) | 2015-07-08 |
Family
ID=53644656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510109797.3A Pending CN104762572A (en) | 2015-03-13 | 2015-03-13 | Stress relieving process of hard alloy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104762572A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105834433A (en) * | 2016-04-06 | 2016-08-10 | 陕西理工学院 | Method for eliminating residual thermal stress of hard alloy cutter |
| CN107350954A (en) * | 2017-07-29 | 2017-11-17 | 赣州伟嘉合金有限责任公司 | A kind of hard alloy process of eliminating stress |
| CN110499443A (en) * | 2019-08-29 | 2019-11-26 | 昆山长鹰硬质合金有限公司 | A kind of high-performance mold materials and preparation method thereof |
| CN110756964A (en) * | 2019-12-04 | 2020-02-07 | 珠海东方重工有限公司 | Reverse deformation treatment process before welding of H-shaped steel structure |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102994854A (en) * | 2012-12-11 | 2013-03-27 | 重庆文理学院 | Fine-particle wear-resistant cemented carbide for railway tamping pickaxe and preparation method thereof |
| CN103572136A (en) * | 2013-11-06 | 2014-02-12 | 大连远东硬质合金有限公司 | Sub-micro grain hard alloy anvil and preparation method thereof |
-
2015
- 2015-03-13 CN CN201510109797.3A patent/CN104762572A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102994854A (en) * | 2012-12-11 | 2013-03-27 | 重庆文理学院 | Fine-particle wear-resistant cemented carbide for railway tamping pickaxe and preparation method thereof |
| CN103572136A (en) * | 2013-11-06 | 2014-02-12 | 大连远东硬质合金有限公司 | Sub-micro grain hard alloy anvil and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 陈振华等: "深冷处理对WC-Co 硬质合金组织和性能的影响", 《材料热处理学报》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105834433A (en) * | 2016-04-06 | 2016-08-10 | 陕西理工学院 | Method for eliminating residual thermal stress of hard alloy cutter |
| CN105834433B (en) * | 2016-04-06 | 2017-11-14 | 陕西理工学院 | The method for eliminating hard alloy cutter residual thermal stress |
| CN107350954A (en) * | 2017-07-29 | 2017-11-17 | 赣州伟嘉合金有限责任公司 | A kind of hard alloy process of eliminating stress |
| CN110499443A (en) * | 2019-08-29 | 2019-11-26 | 昆山长鹰硬质合金有限公司 | A kind of high-performance mold materials and preparation method thereof |
| CN110756964A (en) * | 2019-12-04 | 2020-02-07 | 珠海东方重工有限公司 | Reverse deformation treatment process before welding of H-shaped steel structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104762572A (en) | Stress relieving process of hard alloy | |
| Zhan et al. | Uniformity of residual stress distribution on the surface of S30432 austenitic stainless steel by different shot peening processes | |
| CN100445400C (en) | Heat treating method for improving mechanical property of 42CrMo | |
| CN103934642B (en) | A kind of steel cold-extrusion technology | |
| CN102159742A (en) | Solution heat treatment and overage heat treatment for titanium components | |
| CN103602797B (en) | High rigidity steel wire cut pill thermal treatment process | |
| CN107937922A (en) | A kind of impervious carbon distorsion during quenching control method of large scale double helical gear | |
| CN106755791A (en) | The annealing process of martensitic stain less steel 1Cr13 wire rods | |
| CN112458259A (en) | Method for controlling grain size of austenitic stainless steel material by combination of ultralow temperature treatment and annealing process in laboratory | |
| CN104232859B (en) | A kind of GCr15SiMn Heat Treatment Of Steel method | |
| CN109182680A (en) | A kind of control method of the cold-heading annealing hardness of martensitic stain less steel Bar Wire Product | |
| CN104630434B (en) | The superplastic method of 304 stainless steels is realized using martensitic traoformation circulation | |
| CN107447086B (en) | A kind of vacuum heat treatment process of FV520B-S steel | |
| CN105543715B (en) | A kind of high-strength corrosion-resistant high nitrogen steel fastener and its manufacturing process | |
| CN102876854A (en) | Tempering treatment technical method for 1Cr12 martensite stainless steel pressure spring forge piece | |
| CN104726674A (en) | Vacuum quenching thermal treatment process for stainless steel thin parts | |
| CN109628713A (en) | A kind of spheroidizing method of low-carbon steel | |
| CN105200199A (en) | Heat treatment technology for improving properties of 60Si2Mn spring steel | |
| CN105525077A (en) | Heating processing technology for improving mechanical property of spring steel | |
| CN107130087A (en) | A kind of Technology for Heating Processing for weakening austenitic stainless steel grain-boundary brittleness | |
| CN103667617B (en) | A kind of thermal treatment process improving 1Cr12Ni3Mo2VN turbine blade impelling strength | |
| CN105296900A (en) | Retrogression and re-aging process for improving performance of Al-Mg alloy | |
| Chen et al. | Effect of two-step ausforming on bainite transformation and retained austenite in a medium-carbon bainitic steel | |
| RU2563382C1 (en) | Production of small-size cutting tools from high-speed steel | |
| CN107217127A (en) | A kind of heat treatment hardening media |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150708 |