CN105603168A - Toughening treatment method for metal material - Google Patents
Toughening treatment method for metal material Download PDFInfo
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- CN105603168A CN105603168A CN201510848919.0A CN201510848919A CN105603168A CN 105603168 A CN105603168 A CN 105603168A CN 201510848919 A CN201510848919 A CN 201510848919A CN 105603168 A CN105603168 A CN 105603168A
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Abstract
The invention discloses a toughening treatment method for a metal material. The metal material has a phase transition point. The toughening treatment method comprises the following steps: S1, applying shear stress on a metal material sheet; S2, cyclically heating the metal material sheet for a half cycle and then cooling the metal material sheet for another half cycle, wherein the following conditions should be met: a) the shear stress is 0.05 to 0.1 of the yield point of the metal material sheet; b) in each heating half cycle of the metal material sheet, the temperature of the metal material sheet is above the phase transition point, while the temperature of the metal material sheet is below the phase transition point in each cooling half cycle of the metal material sheet; and c) the metal material sheet has to undergo at least three cycles of heating and cooling and each cycle of heating and cooling is no more than 25 s. The toughening treatment method for the metal material in the invention improves the toughening strength of the metal material in virtue of the phase transition of the metal material by applying the shear stress on the metal material in heating-cooling half cycles.
Description
Technical field
The present invention relates to metal material processing field, especially a kind of metal material toughening processing method.
Background technology
Metal toughness is a kind of mechanical property of metal, is the row that metal shows under given external conditionFor. In general, metal toughness refers to that metal material absorbs energy in plastic deformation and complete process of fractureAbility, it is the general performance of intensity and plasticity. Intensity is the ability of material resistance to deformation and fracture,Plastic deformation degree when plasticity represents to rupture. Therefore, technical staff can be with material in plastic deformationWith the endergonic height that how much represents toughness in complete process of fracture.
The method that tradition is improved metal toughness comprises pressure processing craft, by metal is done at ambient pressureWith under make metal produce plastic deformation, in the process of plastic deformation, change metal grain size and orientation.At the metal of some specific uses, also can adopt warm processing technology further to improve toughness.
Summary of the invention
Main purpose of the present invention is to provide metal material toughening processing method, utilizes the phase of metal materialRealization resembles to improve the toughness of metal material, improves the mechanical performance of metal material.
To achieve these objectives, the present invention proposes a kind of metal material toughening processing method, comprises the following steps:
S1: apply shear stress in metal material sheet;
S2: to described metal material sheet circulating-heating half period, then cooling half period, and meetFollowing condition:
The 0.05-0.1 of the yield point that a) described shear stress is described metal material sheet;
B) within the half period of each metal material sheet heating, the temperature of described metal material sheet is in transformation temperatureAbove; In the cooling half period of each metal material, the temperature of described metal material transformation temperature withUnder;
3) described metal material sheet at least experiences three heating and cooling cycles, each heating and cooling cycleBe no more than 25 seconds.
Preferably, the temperature upper limit in the half period of described heating is 120 degrees Celsius, described coolingLowest temperature in half period is-120 degrees Celsius.
Preferably, the temperature upper limit in the half period of described heating is 50 degrees Celsius, described cooling halfLowest temperature in the individual cycle is-50 degrees Celsius.
Preferably, before described step S1, described metal material sheet has 30Kg/mm2Tensile strength,And,
After described step S2, described metal material sheet has the tensile strength of 40Kg/mm2.
Preferably, alternately implement described step S1 and step S2.
Preferably, the described heating and cooling cycle is 20-25 second.
Preferably, the described heating and cooling cycle is 15-20 second.
Preferably, in the half period of described heating, use high-frequency conductors to heat.
Preferably, in the described cooling half period, use air-flow to carry out cooling.
Compared with prior art, the metal material toughening processing method that the embodiment of the present invention provides passes through to goldBelong to material material and apply shear stress under the heat-cold half period, utilize the phase transition phenomena of metal material to improveThe malleableize intensity of metal material.
Brief description of the drawings
Fig. 1 is the flow chart of metal material toughening processing method in the embodiment of the present invention;
Realization, functional characteristics and the advantage of the object of the invention, in connection with embodiment, are done further with reference to accompanying drawingExplanation.
Detailed description of the invention
Should be appreciated that specific embodiment described herein is only in order to explain the present invention, and be not used in limitDetermine the present invention.
The embodiment of the present invention is that the super phenomenon of moulding based on metal material realizes. Wherein, implementing the present inventionIn the process of embodiment, the half period of heating, cooling half period and apply the mode of mechanical stress canBeing multiple. For example, in the heating half period, can use the electric current of alternation to heat by conductor,Also can utilize the resistance of conductor to heat. In the cooling half period, can carry out sky to metal materialCold (being for example placed in air-flow). The mode of stress application can fixing metal material one end, to other oneEnd applies shear stress etc.
Referring to Fig. 1, Fig. 1 is the flow chart of metal material toughening processing method in the embodiment of the present invention. At Fig. 1In the embodiment illustrating, described metal material has transformation temperature. Described metal material toughening processing method,Comprise the following steps:
S1: apply shear stress in metal material sheet;
S2: to described metal material sheet circulating-heating half period, then cooling half period, and meetFollowing condition:
The 0.05-0.1 of the yield point that a) described shear stress is described metal material sheet;
B) within the half period of each metal material sheet heating, the temperature of described metal material sheet is in transformation temperatureAbove; In the cooling half period of each metal material, the temperature of described metal material transformation temperature withUnder;
3) described metal material sheet at least experiences three heating and cooling cycles, each heating and cooling cycleBe no more than 25 seconds.
The method that metal material material is heated is used high-frequency conductors to heat, for example, on conductorThe electric current that applies alternation makes conductor temp .-elevating, thus can be controlled metal material is heated. ForBetween step S1 and S2, can alternately implement described step S1 and step S2.
In the above-described embodiment, the temperature upper limit in the half period of described heating is 120 degrees Celsius,Lowest temperature in described cooling half period is-120 degrees Celsius. In other embodiment, addTemperature upper limit in the half period of heat is 50 degrees Celsius, the lowest temperature in described cooling half periodFor-50 degrees Celsius.
In addition, before described step S1, described metal material sheet has the tensile strength of 30Kg/mm2,And after described step S2, described metal material sheet has the tensile strength of 40Kg/mm2. DescribedThe heating and cooling cycle is 20-25 second, and preferred, the described heating and cooling cycle is 15-20 second.
The method of utilizing the embodiment of the present invention to provide, after the mechanical performance of metal material is tested,Arrive following form:
Therefore, can find out, utilize the metal material toughening processing method that the embodiment of the present invention provides to pass throughUnder the heat-cold half period, apply shear stress to metal material material, utilize the phase transition phenomena of metal materialImprove the malleableize intensity of metal material.
Should be understood that, these are only the preferred embodiments of the present invention, can not therefore limit of the present inventionThe scope of the claims, every equivalent structure or change of equivalent flow process that utilizes description of the present invention and accompanying drawing content to doChange, or be directly or indirectly used in other relevant technical fields, be all in like manner included in patent of the present inventionIn protection domain.
Claims (9)
1. a metal material toughening processing method, described metal material has transformation temperature, described processing sideMethod comprises the following steps:
S1: apply shear stress in metal material sheet;
S2: to described metal material sheet circulating-heating half period, then cooling half period, and meetFollowing condition:
The 0.05-0.1 of the yield point that a) described shear stress is described metal material sheet;
B) within the half period of each metal material sheet heating, the temperature of described metal material sheet is in transformation temperatureAbove; In the cooling half period of each metal material, the temperature of described metal material transformation temperature withUnder;
C) described metal material sheet at least experiences three heating and cooling cycles, each heating and cooling cycleBe no more than 25 seconds.
2. a kind of metal material toughening processing method as claimed in claim 1, is characterized in that, described inTemperature upper limit in the half period of heating is 120 degrees Celsius, the temperature in described cooling half periodUnder be limited to-120 degrees Celsius.
3. a kind of metal material toughening processing method as claimed in claim 1, is characterized in that, described inTemperature upper limit in the half period of heating is 50 degrees Celsius, at the temperature in described cooling half periodBe limited to-50 degrees Celsius.
4. a kind of metal material toughening processing method as claimed in claim 1, is characterized in that, in instituteBefore stating step S1, described metal material sheet has 30Kg/mm2Tensile strength, and,
After described step S2, described metal material sheet has the tensile strength of 40Kg/mm2.
5. a kind of metal material toughening processing method as claimed in claim 4, is characterized in that, alternatelyImplement described step S1 and step S2.
6. a kind of metal material toughening processing method as claimed in claim 1, is characterized in that, described inThe heating and cooling cycle is 20-25 second.
7. a kind of metal material toughening processing method as claimed in claim 1, is characterized in that, described inThe heating and cooling cycle is 15-20 second.
8. a kind of metal material toughening processing method as claimed in claim 1, is characterized in that, described inIn the half period of heating, use high-frequency conductors to heat.
9. a kind of metal material toughening processing method as claimed in claim 1, is characterized in that, described inIn the cooling half period, use air-flow to carry out cooling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510848919.0A CN105603168A (en) | 2015-11-26 | 2015-11-26 | Toughening treatment method for metal material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510848919.0A CN105603168A (en) | 2015-11-26 | 2015-11-26 | Toughening treatment method for metal material |
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| CN105603168A true CN105603168A (en) | 2016-05-25 |
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| CN201510848919.0A Pending CN105603168A (en) | 2015-11-26 | 2015-11-26 | Toughening treatment method for metal material |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113000856A (en) * | 2021-02-15 | 2021-06-22 | 成都华达金属制品有限公司 | Machining method of thin metal piece based on three-dimensional digital design |
| CN113832418A (en) * | 2021-09-14 | 2021-12-24 | 深圳市卡德姆科技有限公司 | Metal material toughening treatment device and treatment method thereof |
Citations (5)
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|---|---|---|---|---|
| US3977911A (en) * | 1974-05-29 | 1976-08-31 | Mitsubishi Jukogyo Kabushiki Kaisha | Method for casting metallic material while toughening the cast piece |
| JPH08127820A (en) * | 1994-09-06 | 1996-05-21 | Nkk Corp | Method for predicting width shrinkage amount in metal strip heat treatment apparatus, heat treatment method and width adjusting method |
| CN1818095A (en) * | 2006-03-16 | 2006-08-16 | 中南大学 | Method and mould for producing face-centered cubic metal plate with fine grain |
| CN101871084A (en) * | 2009-04-24 | 2010-10-27 | 中国钢铁股份有限公司 | Method for manufacturing low ductility anisotropy rolling aluminum alloy sheet |
| CN104294088A (en) * | 2013-07-16 | 2015-01-21 | 大力神铝业股份有限公司 | Production method of aluminum strip for cosmetic bottle cap |
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2015
- 2015-11-26 CN CN201510848919.0A patent/CN105603168A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3977911A (en) * | 1974-05-29 | 1976-08-31 | Mitsubishi Jukogyo Kabushiki Kaisha | Method for casting metallic material while toughening the cast piece |
| JPH08127820A (en) * | 1994-09-06 | 1996-05-21 | Nkk Corp | Method for predicting width shrinkage amount in metal strip heat treatment apparatus, heat treatment method and width adjusting method |
| CN1818095A (en) * | 2006-03-16 | 2006-08-16 | 中南大学 | Method and mould for producing face-centered cubic metal plate with fine grain |
| CN101871084A (en) * | 2009-04-24 | 2010-10-27 | 中国钢铁股份有限公司 | Method for manufacturing low ductility anisotropy rolling aluminum alloy sheet |
| CN104294088A (en) * | 2013-07-16 | 2015-01-21 | 大力神铝业股份有限公司 | Production method of aluminum strip for cosmetic bottle cap |
Non-Patent Citations (1)
| Title |
|---|
| 耿鑫明: "《金属型铸件生产指南》", 30 August 2008 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113000856A (en) * | 2021-02-15 | 2021-06-22 | 成都华达金属制品有限公司 | Machining method of thin metal piece based on three-dimensional digital design |
| CN113832418A (en) * | 2021-09-14 | 2021-12-24 | 深圳市卡德姆科技有限公司 | Metal material toughening treatment device and treatment method thereof |
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Application publication date: 20160525 |