CN111077178A - High-flux spray quenching sample clamping device - Google Patents
High-flux spray quenching sample clamping device Download PDFInfo
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- CN111077178A CN111077178A CN202010047215.4A CN202010047215A CN111077178A CN 111077178 A CN111077178 A CN 111077178A CN 202010047215 A CN202010047215 A CN 202010047215A CN 111077178 A CN111077178 A CN 111077178A
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- 238000010791 quenching Methods 0.000 title claims abstract description 55
- 230000000171 quenching effect Effects 0.000 title claims abstract description 55
- 239000007921 spray Substances 0.000 title claims abstract description 36
- 238000002474 experimental method Methods 0.000 abstract description 26
- 238000000034 method Methods 0.000 abstract description 12
- 239000000463 material Substances 0.000 abstract description 9
- 239000007769 metal material Substances 0.000 abstract description 8
- 238000012360 testing method Methods 0.000 abstract description 8
- 238000001816 cooling Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000012545 processing Methods 0.000 abstract description 6
- 238000012512 characterization method Methods 0.000 abstract description 3
- 238000002347 injection Methods 0.000 abstract description 3
- 239000007924 injection Substances 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 238000005507 spraying Methods 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 12
- 239000010959 steel Substances 0.000 description 12
- 238000010438 heat treatment Methods 0.000 description 6
- 238000004088 simulation Methods 0.000 description 6
- 238000003825 pressing Methods 0.000 description 3
- 238000005496 tempering Methods 0.000 description 3
- 239000002826 coolant Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 238000012827 research and development Methods 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000000137 annealing Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
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Abstract
The invention discloses a high-flux spray quenching sample clamping device, which belongs to the field of metal material quenching cooling performance characterization and material processing
Fastening screw, bracket, sample holder, pointer and rotating shaft
The device can adjust the spraying and quenching angle between the end part of the test sample in the end quenching experiment and the injection water column, and the single time can be used for simultaneously testing a plurality of samples at most, compared with the traditional experiment method, the experiment efficiency is greatly improved, and in addition, the theoretical support is provided for optimizing the production process by simulating the working condition in the actual production process.
Description
Technical Field
The invention belongs to the field of metal material quenching cooling performance characterization and material processing, and particularly relates to a high-flux spray quenching sample clamping device.
Background
The high-throughput experiment of the material is to complete the preparation and characterization of batch samples in a short time, and the core idea is to change the sequential iteration in the traditional material research into parallel processing so as to improve the research and development efficiency of the material. Through development for many years, material high-throughput experimental equipment has made great progress, and can effectively improve the efficiency of material research and development and accelerate the screening and optimization of materials.
The heat treatment is one of the very important basic process technologies in the processing and manufacturing industry, the performance of the metal material is improved by improving the internal microstructure of the metal material, and the heat treatment plays an irreplaceable role in the aspects of fully playing the material potential, saving energy and the like. The heat treatment of the metal member generally includes four types of annealing, normalizing, quenching, and tempering. The mechanical properties of the metal material, such as strength, hardness, wear resistance and the like, can be improved through quenching and tempering (quenching and tempering), and the method is one of the most important means for heat treatment strengthening of metal components. The end quenching experiment is a measuring method for measuring a relation curve of hardness-distance to a water cold end along an axis direction after a metal material sample is heated and austenitized and one end surface of the metal material sample is sprayed with water and cooled. Because the Jominy end-quench method is simple and reliable, it is selected as a standard method by many countries to determine the hardenability and hardenability of steel. The existing quenching experiment clamping device can only load one sample at a time, the efficiency is low, and the problem that how to improve the efficiency of a quenching experiment becomes to be solved urgently is solved.
The quenching process has too high cooling speed, internal stress is easily generated in the workpiece, and the workpiece is deformed and even cracked when the internal stress is serious. In actual production, a cooling medium or a cooling method with a low cooling speed such as oil quenching and spray quenching is generally adopted to replace immersion quenching, so that deformation and internal stress of a workpiece are reduced as much as possible while a quenching structure is obtained. In the spray quenching process, technological parameters such as flow, spray angle and intermittent frequency of a cooling medium are key technological parameters influencing the quenching effect, but related experimental equipment is still lacked to characterize the hardenability and hardenability of a metal material under the spray quenching condition.
In patent CN204211770U "end quenching experimental device of steel hardenability", aiming at the problem that the clamping device of the existing spray quenching experiment can not fix the small-size sample, an end quenching experimental device for the small-size sample is provided, which is convenient to operate and accurate in test, but the device can only perform the experiment of a single sample at a time, and can only perform the axial hardenability experiment, and can not study other experiment influence factors such as the injection angle.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides the high-throughput spray quenching sample clamping device which can be applied to a spray quenching experiment simulation device and is used for simulating the factors influencing the quenching result of a spray quenching experiment, wherein the aim of controlling the spray quenching angle in the end quenching experiment can be achieved by controlling the deflection angle of the sample, the process conditions in the actual production process can be simulated, the number of samples in one experiment can be increased, and the experiment efficiency is improved. The invention is realized by the following technical scheme:
a high-flux spray quenching sample clamping device comprises a handle 1 and a rotating shaft
2. Fastening screw 3, support 4, sample seat 6, pointer 7 and rotating shaft
8. A dial 9, a support 10;
the handle 1 is arranged on the rotating shaft
2 one end of the bracket 4 is a hollow sleeve structure and a rotating shaft
The other end of the sample holder 2 penetrates through the bracket 4 and then is connected with one end of a sample holder 6, the other end of the sample holder 6 is connected with a rotating shaft II8, and the rotating shaft II8 is connected with a support 10 through a shaft; the sample seat 6 is provided with a plurality of sample holes 5;
the pointer 7 is arranged at one end of the sample holder 6 close to the support 10, and the dial plate 9 is arranged on the support 10;
the sleeve structure of the bracket 4 is provided with a hole communicated with the hollow structure, and the fastening screw 3 is arranged in the hole.
The top end of the sample hole 5 is designed to be a counter-bore structure, and the bottom end of the sample hole is designed to be a stepped hole structure.
The scale mark 0 of the dial plate 9 is on the same straight line with the central axis of the sample holder 6 and the pointer 7 when the dial plate is static, the deflection angle of the sample holder 6 is +/-15 degrees, and the minimum measurable range is 2.5 degrees.
The sample clamping device can be applied to a spray quenching experiment simulation device, wherein two sides of the support 4 and the support 10 are respectively provided with a support frame, the support frame is provided with bolt holes, the support frame can be matched with the support frame and the bolt holes on the spray quenching experiment simulation device, and the sample clamping device is fixed on the spray quenching experiment simulation device through bolt fixation, so that the purpose of loading quenching samples is achieved.
The sample clamping device can simulate the spray quenching angle in the spray quenching experiment process by adjusting the deflection angle of the sample holder 6, and after the experiment is finished, the sample is processed and detected according to GB/T225-2006. Through comparing the detection results, the influence of different spray quenching angles on the spray quenching experiment can be obtained.
The invention has the advantages that the injection angle of the sample holder can be adjusted, and the method is used for simulating the spray quenching angle in the actual production process and screening the optimal spray quenching angle; the central symmetry axis of the sample holder, the pointer and the dial are on the same straight line, and the deflection angle of the sample is reflected in real time; in addition, the design of a counter bore and a stepped hole is added in the sample hole, so that the sample is convenient to take, and the stability of placing the sample is ensured; the test sample seat is provided with a plurality of test sample holes, so that a plurality of test samples can be subjected to spray quenching at most at one time, the test efficiency is improved, and national standard samples and non-national standard samples can be placed at the same time; a large amount of data and optimal experimental conditions can be provided for optimizing the production process, the experimental period is shortened, and the experimental efficiency is improved.
Drawings
FIG. 1 is a schematic view of the structure of an apparatus according to example 1;
FIG. 2 is a top view of the apparatus of example 1;
FIG. 3 is a schematic dial of the device of embodiment 1;
in the figures, 1-handle 1; 2-rotating shaft
(ii) a 3-fastening screws; 4-a scaffold; 5-sample hole; 6-sample holder; 7-a pointer; 8-rotating shaft
(ii) a 9-dial plate; 10-support 10.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
Example 1
A high-flux spray quenching sample card loading device is shown in figures 1, 2 and 3 and comprises a handle 1 and a rotating shaft
2. Fastening screw 3, support 4, sample hole 5, sample seat 6, pointer 7 and rotating shaft
8. A dial 9, a support 10;
the handle 1 is fixedly welded on the rotating shaft
2 one end of the bracket 4 is a hollow sleeve structure and a rotating shaft
2, the other end of the bracket 4 is fixedly connected with one end of a sample holder 6, the other end of the sample holder 6 is fixedly connected with a rotating shaft II8, and the rotating shaft II8 is connected with a support 10 through a shaft; the rotating shaft II8 can not drive the support 10 to move when rotating; the support 4 and the support 10 are respectively provided with a support frame at two sides, the support frame is provided with bolt holes which can be matched with the support and the bolt holes on the spray quenching experiment simulation device, and the sample clamping device is fixed on the spray quenching experiment simulation device through bolt fixation;
the pointer 7 is vertically arranged at one end of the sample holder 6 close to the support 10, the dial 9 is arranged on the support 10, the scale mark 0 of the dial 9 is on the same straight line with the central axis of the sample holder 6 and the pointer 7 when the sample holder is static, the pointer 7 deflects along with the sample holder 6, and the deflection angle of the sample holder 6 can be obtained through the deflection angle of the pointer 7 on the dial 9;
the sleeve structure of the support 4 is provided with a hole communicated with the hollow structure, the fastening screw 3 is arranged in the hole, and the bottom of the fastening screw 3 can be communicated with the rotating shaft
2, the side surfaces are contacted, the fastening screw 3 is screwed, and the rotating shaft can be arranged at the bottom of the fastening screw 3
2 pressing tightly for fixing and preventing rotation shaft
2 driving the sample holder 6 to rotate, otherwise, loosening the fastening screw 3 and rotating the shaft
2 can rotate freely; 4 sample holes 5 are arranged on the sample seat 6, the top end of each sample hole 5 is provided with a countersunk hole structure, the bottom end of each sample hole 5 is provided with a stepped hole structure, the deflection angle of the pointer 7 is +/-15 degrees, the scale disc 9 ranges from minus 15 degrees to plus 15 degrees, and the minimum measurable range is 2.5 degrees.
Example 2
In this embodiment, the use method of the high-throughput spray quenching sample card loading device in embodiment 1 is described by taking SA508-3 steel, 42CrMo steel, S34MnV steel and 5CrNiMoV steel as examples, and the specific steps are as follows:
preparing 4 samples of SA508-3 steel, 42CrMo steel, S34MnV steel and 5CrNiMoV steel with the size of 25mm in diameter and 100mm in length according to national standard GB/T225-2006, heating to 860 ℃, preserving heat for 30min, simultaneously taking out the 4 samples after heat preservation is finished, unscrewing fastening screws 3, rotating a rotating shaft through a handle 1, and preserving heat for 30min
2. Rotating shaft
8 drive the sample seat 6 to deflect to positive 10 degrees, tighten the fastening screw 3, and the bottom of the fastening screw 3 can make the rotating shaft
2 pressing tightly for fixing and preventing rotation shaft
2, rotating, fixing the sample holder 6, putting the sample into the sample hole 5 on the sample holder 6, performing spray quenching experiment for 40min, naturally cooling to room temperature after the spray quenching is finished, taking out the sample, adjusting the fastening screw 3, and loosening the rotating shaft
And 2, rotating the handle 1 to restore the sample holder 6 to the original position, processing and detecting the sample according to GB/T225-2006, and analyzing the result.
Example 3
In this example, a668 steel is taken as an example to illustrate a method for using the high-throughput spray quenching sample card loading device in example 1, and the specific steps are as follows:
preparing 4A 668 steel samples with the size of 25mm in diameter and 100mm in length according to the national standard GB/T225-2006, respectively heating the 4 samples to 860 ℃, 880 ℃, 900 ℃ and 920 ℃, preserving heat for 30min, simultaneously taking out the 4 samples after the heat preservation is finished, unscrewing the fastening screw 3, rotating the rotating shaft through the handle 1, and then screwing the rotating shaft into the sample holder
2. Rotating shaft
8 drive the test sample seat 6 to deflect to minus 15 degrees, the fastening screw 3 is screwed, and the rotating shaft can be driven by the bottom of the fastening screw 3
2 pressing tightly for fixing and preventing rotation shaft
2, rotating, fixing the sample holder 6, putting the sample into the sample hole 5 on the sample holder 6, performing spray quenching experiment for 40min, naturally cooling to room temperature after the spray quenching is finished, taking out the sample, adjusting the fastening screw 3, and loosening the rotating shaft
And 2, rotating the handle 1 to restore the sample holder 6 to the original position, processing and detecting the sample according to GB/T225-2006, and analyzing the result.
Claims (3)
1. A high-flux spray quenching sample clamping device is characterized by comprising a handle (1) and a rotating shaft
(2) The device comprises a fastening screw (3), a bracket (4), a sample hole (5), a sample seat (6), a pointer (7) and a rotating shaft
(8) The dial scale (9) and the support (10);
the handle (1) is arranged on the rotating shaft
(2) One end of the bracket (4) is a hollow sleeve structure and a rotating shaft
(2) The other end of the sample holder penetrates through the bracket (4) and then is connected with one end of the sample holder (6), the other end of the sample holder (6) is connected with a rotating shaft II (8), and the rotating shaft II (8) is connected with a support (10) through a shaft; a plurality of sample holes (5) are arranged on the sample seat (6);
the pointer (7) is arranged at one end of the sample holder (6) close to the support (10), and the dial (9) is arranged on the support (10);
the sleeve structure of the bracket (4) is provided with a hole communicated with the hollow structure, and the fastening screw (3) is arranged in the hole.
2. The high-throughput spray quenching sample clamping device according to claim 1, wherein the sample hole (5) penetrates through the sample holder (6), and the top end of the sample hole (5) is of a counter-sunk structure, and the bottom end of the sample hole is of a stepped hole structure.
3. The high-throughput spray quenching sample clamping device according to claim 1, wherein the scale mark 0 of the dial (9) is on the same straight line with the central axis and the pointer (7) of the sample holder (6) at rest.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010047215.4A CN111077178B (en) | 2020-01-16 | 2020-01-16 | High-flux spray quenching sample clamping device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010047215.4A CN111077178B (en) | 2020-01-16 | 2020-01-16 | High-flux spray quenching sample clamping device |
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| CN111077178A true CN111077178A (en) | 2020-04-28 |
| CN111077178B CN111077178B (en) | 2021-09-24 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006042538A1 (en) * | 2004-10-22 | 2006-04-27 | Ald Vacuum Technologies Gmbh | Method for the low-warping case hardening of metallic parts |
| CN103983657A (en) * | 2014-05-26 | 2014-08-13 | 江苏鑫露新材料股份有限公司 | Quenching oil cooling-rate attenuation rapid simulation device and simulation method |
| WO2018080707A1 (en) * | 2016-10-27 | 2018-05-03 | Novelis Inc. | Metal casting and rolling line |
| CN108676977A (en) * | 2018-06-08 | 2018-10-19 | 上海电机学院 | A kind of quenching unit and method measuring aluminum alloy hardenability |
| CN109613045A (en) * | 2018-11-26 | 2019-04-12 | 西安建筑科技大学 | A kind of heat-treatment quenching liquid toxicity test device and method |
| CN208995537U (en) * | 2018-09-11 | 2019-06-18 | 昆明理工大学 | A kind of controllable hydrospace is had a rest straight-line hardening simulation test device |
| CN209542498U (en) * | 2019-03-07 | 2019-10-25 | 山东科技大学 | The test macro of steam fog quenching device, part interfacial heat transfer coefficient |
-
2020
- 2020-01-16 CN CN202010047215.4A patent/CN111077178B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006042538A1 (en) * | 2004-10-22 | 2006-04-27 | Ald Vacuum Technologies Gmbh | Method for the low-warping case hardening of metallic parts |
| CN103983657A (en) * | 2014-05-26 | 2014-08-13 | 江苏鑫露新材料股份有限公司 | Quenching oil cooling-rate attenuation rapid simulation device and simulation method |
| WO2018080707A1 (en) * | 2016-10-27 | 2018-05-03 | Novelis Inc. | Metal casting and rolling line |
| CN108676977A (en) * | 2018-06-08 | 2018-10-19 | 上海电机学院 | A kind of quenching unit and method measuring aluminum alloy hardenability |
| CN208995537U (en) * | 2018-09-11 | 2019-06-18 | 昆明理工大学 | A kind of controllable hydrospace is had a rest straight-line hardening simulation test device |
| CN109613045A (en) * | 2018-11-26 | 2019-04-12 | 西安建筑科技大学 | A kind of heat-treatment quenching liquid toxicity test device and method |
| CN209542498U (en) * | 2019-03-07 | 2019-10-25 | 山东科技大学 | The test macro of steam fog quenching device, part interfacial heat transfer coefficient |
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