CN113075009A - Die inductive-resistant choke device formed by extrusion molding of Gleeble-3500 testing machine - Google Patents
Die inductive-resistant choke device formed by extrusion molding of Gleeble-3500 testing machine Download PDFInfo
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- CN113075009A CN113075009A CN202110306492.7A CN202110306492A CN113075009A CN 113075009 A CN113075009 A CN 113075009A CN 202110306492 A CN202110306492 A CN 202110306492A CN 113075009 A CN113075009 A CN 113075009A
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- die
- gleeble
- testing machine
- electromagnetic induction
- induction coil
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- 238000001125 extrusion Methods 0.000 title claims abstract description 16
- 238000012360 testing method Methods 0.000 title claims abstract description 15
- 230000001939 inductive effect Effects 0.000 title claims abstract description 5
- 230000005674 electromagnetic induction Effects 0.000 claims abstract description 23
- 230000000903 blocking effect Effects 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 abstract description 16
- 230000008569 process Effects 0.000 abstract description 13
- 239000000463 material Substances 0.000 abstract description 8
- 238000009826 distribution Methods 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 229910000861 Mg alloy Inorganic materials 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 230000006399 behavior Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/36—Embedding or analogous mounting of samples
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/16—Heating or cooling
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/36—Embedding or analogous mounting of samples
- G01N2001/366—Moulds; Demoulding
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to a concave die inductive-resistant choke device formed by extrusion molding of a Gleeble-3500 testing machine. The technical problems that the temperature of a male die is too high and the overall temperature distribution of the die and a sample is not uniform in the existing die adopting the rotary extrusion process are mainly solved. The technical scheme adopted by the invention is as follows: the utility model provides a Gleeble-3500 testing machine extrusion's die feels anti choked flow device, includes the die, wherein: the electromagnetic induction coil is sleeved on the female die and used for blocking current in a loop from being generated, so that the female die is not red due to overlarge current, and the function is better played. The invention has the advantages of simple structure, convenient use, applicability to various deformation materials, no need of considering that the temperature rise speed of the male die is higher than that of a sample, greatly improved application range and the like.
Description
Technical Field
The invention relates to a concave die inductive-resistance flow blocking device formed by extrusion of a Gleeble-3500 testing machine, belonging to the technical field of severe plastic deformation processing and forming of metal materials.
Background
The large plastic deformation is a common method for improving the mechanical property of the material, the rotary extrusion process is a novel large plastic deformation mode, the process combines the traditional extrusion process and the torsional deformation, so that the material can simultaneously receive compressive strain and shear strain, the total strain of single-pass deformation is improved, the process is simple, the production efficiency is high, the sample size limitation is avoided, and the requirement of industrial production can be met. The Gleeble-3500 thermal simulation testing machine can realize two processes of rotation and extrusion, provides analysis data which not only reveals the microscopic mechanism but also guides the actual process for the research and scientific research and development of metal materials through simulation experiments of deformation behaviors of small metal samples under different heating and stress conditions, greatly shortens the development period of new materials and new processes, and reduces the development cost.
However, the dies of the current rotary extrusion process have some drawbacks. The heating mode of Gleeble-3500 is resistance heating, and the mold and the material are heated by passing large current through the resistance heating. Because the mold and the deformed metal are made of different materials and have different resistivity, the deformed metal is difficult to reach the preset temperature due to different temperature rises during heating, and the experiment of the experimental mold fails. And secondly, the unloading from the female die is difficult for part of metal with lower hardness.
Disclosure of Invention
The invention aims to solve the technical problems of overhigh temperature of a male die and uneven overall temperature distribution of the die and a sample in the existing die in a rotary extrusion process, and provides a concave die inductive-resistance flow blocking device formed by extrusion of a Gleeble-3500 testing machine.
In order to solve the technical problems, the invention adopts the technical scheme that:
the utility model provides a Gleeble-3500 testing machine extrusion's die feels anti choked flow device, includes the die, wherein: the electromagnetic induction coil is sleeved on the female die and used for blocking current in a loop from being generated, so that the female die is not red due to overlarge current, and the function is better played.
Further, the inner diameter of the electromagnetic induction coil is 5-10 mm larger than the outer diameter of the concave die.
Furthermore, the ends at the two ends of the electromagnetic induction coil are stripped and welded on the outer side surface of the female die in a naked mode, and the electromagnetic induction coil is fixed with the female die.
Furthermore, the number of turns of the electromagnetic induction coil is 30-50.
The invention has the beneficial effects that:
according to the invention, the female die is externally connected with the electromagnetic induction coil to form the electromagnetic induction device, when alternating current passes through the coil, self-induced electromotive force is generated in the coil to block the change of current in a circuit, so that the temperature of the male die is reduced, the temperature of the whole loop is controllable, and the condition of over high local temperature is avoided. The technical problems that the temperature of a male die is overhigh and the overall temperature distribution of the die and a sample is not uniform in the existing die adopting the rotary extrusion process are solved. Therefore, compared with the background art, the invention has the advantages of simple structure, convenient use, applicability to various deformation materials, no need of considering that the temperature rise speed of the male die is higher than that of the sample, great improvement on the application range, and the like.
Drawings
FIG. 1 is a schematic structural view of the present invention;
in the figure: 1-a female die; 2-an electromagnetic induction coil; 3-unloading the material plate; 4-male die.
Detailed Description
The invention is further described below with reference to the figures and examples.
As shown in fig. 1, the concave die inductive-resistant flow blocking device formed by extrusion molding of the Gleeble-3500 testing machine in the embodiment includes a concave die 1, wherein: the electromagnetic induction heating device is characterized by further comprising an electromagnetic induction coil 2, wherein the electromagnetic induction coil 2 is sleeved on the female die 1 and used for blocking current generation in a loop, so that the male die 4 is prevented from being reddened due to overlarge current, and the function is better played.
Further, the inner diameter of the electromagnetic induction coil 2 is 5-10 mm larger than the outer diameter of the concave die 1.
Furthermore, the ends at the two ends of the electromagnetic induction coil 2 are peeled and welded on the outer side surface of the female die 1, and the electromagnetic induction coil 2 is fixed with the female die 1.
Furthermore, the number of turns of the electromagnetic induction coil 2 is 30-50.
The using method of the invention is as follows:
the method comprises the following steps:
(1) placing a sample into a female die 1 provided with an electromagnetic induction coil 2, and installing a stripper plate 3 on a male die 4;
(2) starting the equipment to press the male die 4 on the sample, so as to ensure good conductivity;
(3) after the experiment is finished, the loads at the two ends of the male die 4 and the female die 1 are unloaded, and the complete unloading process of the male die and the female die can be achieved by matching with the Chinese patent CN201820595345. X.
Example 1
By adopting the invention to test the aluminum alloy and magnesium alloy samples, the problem that the male die turns red and overheated is not found at the deformation temperature within 500 ℃, and the success rate of the test and the service cycle of the male die are greatly improved.
When the original die is used for aluminum alloy and part of magnesium alloy, the male die turns red when the temperature of a sample exceeds 350 ℃ in the heating process, the surface of the sample is melted, and the experiment fails. The male die is too high in temperature and insufficient in strength when the deformation temperature is 300-350 ℃, and can be bent in the using process to damage the male die.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110306492.7A CN113075009A (en) | 2021-03-23 | 2021-03-23 | Die inductive-resistant choke device formed by extrusion molding of Gleeble-3500 testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110306492.7A CN113075009A (en) | 2021-03-23 | 2021-03-23 | Die inductive-resistant choke device formed by extrusion molding of Gleeble-3500 testing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113075009A true CN113075009A (en) | 2021-07-06 |
Family
ID=76613277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110306492.7A Pending CN113075009A (en) | 2021-03-23 | 2021-03-23 | Die inductive-resistant choke device formed by extrusion molding of Gleeble-3500 testing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113075009A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1196160A (en) * | 1995-09-18 | 1998-10-14 | 株式会社濑田技研 | Temp. controller of electromagnetic induction heater and its start system |
| JP2012152785A (en) * | 2011-01-26 | 2012-08-16 | Mitsubishi Alum Co Ltd | Extrusion die device, and extrusion method |
| CN103398909A (en) * | 2013-08-05 | 2013-11-20 | 大连理工大学 | Method for acquiring metal temperature forming limit diagram (TFLD) and testing device therefor |
| CN104237044A (en) * | 2013-06-18 | 2014-12-24 | 山东科技大学 | Testing machine for quantitatively measuring thermal fatigue performance of alloy and forecasting life span of alloy |
| CN205529070U (en) * | 2015-12-09 | 2016-08-31 | 成都德善能科技有限公司 | A dc bus stable system for electrolytic aluminum |
| CN106769526A (en) * | 2016-12-07 | 2017-05-31 | 吉林大学 | A kind of tensile test at high temperature device |
| CN108169030A (en) * | 2018-03-13 | 2018-06-15 | 大连理工大学 | A kind of realization uniformly heated tensile test at high temperature device and method of exemplar |
| CN109817399A (en) * | 2018-04-02 | 2019-05-28 | 严宗周 | A kind of inductive type fusing resistor |
| CN110947785A (en) * | 2019-12-12 | 2020-04-03 | 太原科技大学 | Tubing extrusion die of Gleeble thermal simulation testing machine and use method thereof |
| CN111556600A (en) * | 2020-06-20 | 2020-08-18 | 西安交通大学 | Sleeve type transformer oil heating device and method based on electromagnetic induction heating principle |
-
2021
- 2021-03-23 CN CN202110306492.7A patent/CN113075009A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1196160A (en) * | 1995-09-18 | 1998-10-14 | 株式会社濑田技研 | Temp. controller of electromagnetic induction heater and its start system |
| JP2012152785A (en) * | 2011-01-26 | 2012-08-16 | Mitsubishi Alum Co Ltd | Extrusion die device, and extrusion method |
| CN104237044A (en) * | 2013-06-18 | 2014-12-24 | 山东科技大学 | Testing machine for quantitatively measuring thermal fatigue performance of alloy and forecasting life span of alloy |
| CN103398909A (en) * | 2013-08-05 | 2013-11-20 | 大连理工大学 | Method for acquiring metal temperature forming limit diagram (TFLD) and testing device therefor |
| CN205529070U (en) * | 2015-12-09 | 2016-08-31 | 成都德善能科技有限公司 | A dc bus stable system for electrolytic aluminum |
| CN106769526A (en) * | 2016-12-07 | 2017-05-31 | 吉林大学 | A kind of tensile test at high temperature device |
| CN108169030A (en) * | 2018-03-13 | 2018-06-15 | 大连理工大学 | A kind of realization uniformly heated tensile test at high temperature device and method of exemplar |
| CN109817399A (en) * | 2018-04-02 | 2019-05-28 | 严宗周 | A kind of inductive type fusing resistor |
| CN110947785A (en) * | 2019-12-12 | 2020-04-03 | 太原科技大学 | Tubing extrusion die of Gleeble thermal simulation testing machine and use method thereof |
| CN111556600A (en) * | 2020-06-20 | 2020-08-18 | 西安交通大学 | Sleeve type transformer oil heating device and method based on electromagnetic induction heating principle |
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Application publication date: 20210706 |