CN104483030A - Method for measuring heating and cooling time of workpiece material - Google Patents
Method for measuring heating and cooling time of workpiece material Download PDFInfo
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- CN104483030A CN104483030A CN201410812434.1A CN201410812434A CN104483030A CN 104483030 A CN104483030 A CN 104483030A CN 201410812434 A CN201410812434 A CN 201410812434A CN 104483030 A CN104483030 A CN 104483030A
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- thermopair
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Abstract
The invention discloses a method for measuring the heating and cooling time of a workpiece material. The method comprises the following steps: (1), welding a steel tube on the surface of a workpiece or drilling a hole in the workpiece; (2), inserting a thermocouple measuring terminal into the steel tube or the hole and fixing the thermocouple measuring terminal; (3), sealing a gap in the steel tube or the hole; (4), mounting the workpiece provided with a thermocouple into a heating furnace; (5) connecting a reference junction of the thermocouple to a temperature recorder; (6), recording a temperature-time curve of the thermocouple in a heating process; (7), cooling the workpiece provided with the thermocouple and recording the temperature-time curve of the thermocouple in a cooling process; and (8), calculating the heating and cooling time. The method for measuring the heating and cooling time of the workpiece material can measure the heating and cooling time of the material on the surface or in the maximum cross-section position in the heating and cooling processes, the measurement is simple, the cost is low, the method is suitable for workpieces in various shapes, and the measurement accuracy is high.
Description
Technical field
The present invention relates to the measuring method of workpiece material surface and inner intensification or temperature fall time in a kind of heating or cooling procedure, particularly relate to the method for the heating and cooling time at measuring workpieces material surface and maximum cross-section place in a kind of thermal treatment heating and cooling procedure.
Background technology
During forging process for fuel heating, can forge after needing to guarantee material maximum cross-section heat penetration; During forge piece thermal treatment, the thermal treatment temperature retention time in technical manual normally calculates from after the heat penetration of material maximum cross-section; In order to make forge piece obtain best structure and properties, usually need to control cool time after the thermal treatment at its surface or maximum cross-section place.Therefore, measurement material surface or maximum cross-section are in the intensification in heating and cooling process and control important in inhibiting to the formulation of technique and production run cool time.
Summary of the invention
The object of the present invention is to provide a kind of method of measuring workpieces material heating and cooling time, it has the advantages that precision is high, cost is low and versatility is good, to solve the problems referred to above existed in measuring workpieces material heating and cooling time course in prior art.
For reaching this object, the present invention by the following technical solutions:
The method of measuring workpieces material heating and cooling time, it comprises the following steps:
1) surface of the work welded still pipe or hole therein;
2) thermocouple measurement end is inserted in steel pipe or hole, and be fixed;
3) sealed steel pipe or hole internal pore;
4) workpiece of band thermopair is loaded in heating furnace;
5) Method of Thermocouple Thermometer Reference End is connected in moisture recorder,
6) electric thermo-couple temperature-time curve in temperature-rise period is recorded;
7) by the work-piece cools of band thermopair, electric thermo-couple temperature-time curve in record cooling procedure;
8) intensification and cool time is calculated.
Especially, described step 1) in the internal diameter of welded still pipe and length match with thermopair, guarantee just can insert thermopair, the length of steel pipe guarantees stationary heat galvanic couple; The diameter in hole matches with thermopair, guarantees just can insert thermopair, and hole depth is circle circle centre position from surface of the work to workpiece maximum cross-section, and the measuring junction of thermopair is inserted to bottom hole.
Especially, described step 2) in iron wire, thermopair is bundled on steel pipe or workpiece with stationary heat galvanic couple.
Especially, described step 3) in steel pipe or the space between hole and thermopair by filling fire clay sealing.
Especially, described step 7) middle any one mode being with the workpiece of thermopair to adopt cooling or cooling of coming out of the stove in heating furnace.
Beneficial effect of the present invention is, compared with prior art the described measuring workpieces material heating and cooling time can be measured material surface or maximum cross-section and is in intensification in heating and cooling process and cool time; Not only measurement is simple, cost is low; And be applicable to various shape workpiece; Measuring accuracy is high.
Accompanying drawing explanation
Fig. 1 is the process flow diagram of the method for measuring workpieces material heating and cooling time of the present invention;
Fig. 2 is the instrumentation plan of the method for the measuring workpieces material heating and cooling time that the specific embodiment of the invention 1 provides;
Fig. 3 is the instrumentation plan of the method for the measuring workpieces material heating and cooling time that the specific embodiment of the invention 2 provides.
In figure:
1, workpiece; 2, steel pipe; 3, thermopair; 4, moisture recorder; 5, workpiece maximum cross-section circle.
Embodiment
Technical scheme of the present invention is further illustrated by embodiment below in conjunction with accompanying drawing.
Embodiment one:
Refer to shown in Fig. 1 and Fig. 2, in the present embodiment, a kind of method of measuring workpieces material heating and cooling time, for measuring the intensification of material surface in heating and cooling process and cool time, it comprises the following steps:
Step 1: at workpiece 1 surperficial heating and cooling time to be measured place's welding hollow steel pipe 2, the internal diameter of steel pipe 2 and length match with thermopair 3, guarantee just can insert thermopair 3, the length of steel pipe 2 guarantees stationary heat galvanic couple 3;
Step 2: thermopair 3 measuring junction is inserted to bottom steel pipe 2 with workpiece 1 surface contact, and thermopair 3 is bundled on steel pipe 2 or workpiece 1, with stationary heat galvanic couple with iron wire;
Step 3: be full of space between steel pipe 2 internal diameter and thermopair 3 to seal with fire clay;
Step 4: the workpiece of band thermopair is loaded in heating furnace;
Step 5: Method of Thermocouple Thermometer Reference End is connected in moisture recorder 4;
Step 6: electric thermo-couple temperature-time curve in record temperature-rise period;
Step 7: cool the workpiece of band thermopair or come out of the stove cooling in heating furnace, electric thermo-couple temperature-time curve in record cooling procedure;
Step 8: calculate and heat up and cool time.
Embodiment two:
Refer to shown in Fig. 1 and Fig. 3, in the present embodiment, a kind of method of measuring workpieces material heating and cooling time, be in intensification in heating and cooling process and cool time for measuring material maximum cross-section, it comprises the following steps:
Step 1: hole on workpiece 1, the diameter in hole matches with thermopair 3, guarantees just can insert thermopair 3, hole depth is the circle centre position of the circle 5 from surface of the work to workpiece maximum cross-section, and the measuring junction of thermopair 3 is inserted to bottom hole;
Step 2: thermopair 3 is bundled on workpiece 1 with stationary heat galvanic couple with iron wire;
Step 3: be full of space between hole and thermopair 3 to seal with fire clay;
Step 4: the workpiece of band thermopair is loaded in heating furnace;
Step 5: Method of Thermocouple Thermometer Reference End is connected in moisture recorder 4;
Step 6: electric thermo-couple temperature-time curve in record temperature-rise period;
Step 7: cool the workpiece of band thermopair or come out of the stove cooling in heating furnace, electric thermo-couple temperature-time curve in record cooling procedure;
Step 8: calculate and heat up and cool time.
Above embodiment has just set forth ultimate principle of the present invention and characteristic; the present invention does not limit by above-mentioned example; without departing from the spirit and scope of the present invention, the present invention also has various change and change, and these changes and change all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (5)
1. the method for measuring workpieces material heating and cooling time, is characterized in that: it comprises the following steps:
1) surface of the work welded still pipe or hole therein;
2) thermocouple measurement end is inserted in steel pipe or hole, and be fixed;
3) sealed steel pipe or hole internal pore;
4) workpiece of band thermopair is loaded in heating furnace;
5) Method of Thermocouple Thermometer Reference End is connected in moisture recorder,
6) electric thermo-couple temperature-time curve in temperature-rise period is recorded;
7) by the work-piece cools of band thermopair, electric thermo-couple temperature-time curve in record cooling procedure;
8) intensification and cool time is calculated.
2. the method for measuring workpieces material heating and cooling time according to claim 1, it is characterized in that, described step 1) in the internal diameter of welded still pipe and length match with thermopair, guarantee just can insert thermopair, the length of steel pipe guarantees stationary heat galvanic couple; The diameter in hole matches with thermopair, guarantees just can insert thermopair, and hole depth is circle circle centre position from surface of the work to workpiece maximum cross-section, and the measuring junction of thermopair is inserted to bottom hole.
3. the method for measuring workpieces material heating and cooling time according to claim 1, is characterized in that, described step 2) in iron wire, thermopair is bundled on steel pipe or workpiece with stationary heat galvanic couple.
4. the method for measuring workpieces material heating and cooling time according to claim 1, is characterized in that, described step 3) in steel pipe or the space between hole and thermopair by filling fire clay sealing.
5. the method for measuring workpieces material heating and cooling time according to claim 1, is characterized in that, described step 7) middle any one mode being with the workpiece of thermopair to adopt cooling or cooling of coming out of the stove in heating furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410812434.1A CN104483030A (en) | 2014-12-23 | 2014-12-23 | Method for measuring heating and cooling time of workpiece material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410812434.1A CN104483030A (en) | 2014-12-23 | 2014-12-23 | Method for measuring heating and cooling time of workpiece material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104483030A true CN104483030A (en) | 2015-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410812434.1A Pending CN104483030A (en) | 2014-12-23 | 2014-12-23 | Method for measuring heating and cooling time of workpiece material |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108917960A (en) * | 2018-05-15 | 2018-11-30 | 首钢集团有限公司 | A kind of measuring device and method of billet heating temperature uniformity |
| CN110082005A (en) * | 2019-05-23 | 2019-08-02 | 江西联创光电科技股份有限公司 | A kind of the nonuniform sampling measurement method and equipment of conductor bar internal temperature |
| CN110082006A (en) * | 2019-05-23 | 2019-08-02 | 江西联创光电科技股份有限公司 | A kind of the uniform sampling measurement method and equipment of conductor bar internal temperature |
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| US20090028210A1 (en) * | 2005-03-22 | 2009-01-29 | Idemitsu Kosan Co., Ltd., | Metal surface temperature measuring instrument |
| CN102589740A (en) * | 2012-01-16 | 2012-07-18 | 成都天马铁路轴承有限公司 | Testing method for temperature variation of tampering core part of forging piece for large-section bearing inner and outer rings |
| CN202420705U (en) * | 2011-12-28 | 2012-09-05 | 申雅密封件有限公司 | Multi-point armored thermocouple device with protection pipe |
| CN102967383A (en) * | 2012-12-18 | 2013-03-13 | 东北大学 | Method for determining temperature field of aluminum alloy along axial direction of sample during end quenching |
| CN203705075U (en) * | 2014-01-29 | 2014-07-09 | 中国矿业大学(北京) | Thermocouple compensation wire seal connecting device |
| CN203758633U (en) * | 2014-03-18 | 2014-08-06 | 二重集团（德阳）重型装备股份有限公司 | Measuring structure for insulation effect of forging insulation sheath material |
| CN203824656U (en) * | 2014-03-03 | 2014-09-10 | 宝钢集团新疆八一钢铁有限公司 | Blast furnace and COREX furnace taphole thermocouple protection device |
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- 2014-12-23 CN CN201410812434.1A patent/CN104483030A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090028210A1 (en) * | 2005-03-22 | 2009-01-29 | Idemitsu Kosan Co., Ltd., | Metal surface temperature measuring instrument |
| CN202420705U (en) * | 2011-12-28 | 2012-09-05 | 申雅密封件有限公司 | Multi-point armored thermocouple device with protection pipe |
| CN102589740A (en) * | 2012-01-16 | 2012-07-18 | 成都天马铁路轴承有限公司 | Testing method for temperature variation of tampering core part of forging piece for large-section bearing inner and outer rings |
| CN102967383A (en) * | 2012-12-18 | 2013-03-13 | 东北大学 | Method for determining temperature field of aluminum alloy along axial direction of sample during end quenching |
| CN203705075U (en) * | 2014-01-29 | 2014-07-09 | 中国矿业大学(北京) | Thermocouple compensation wire seal connecting device |
| CN203824656U (en) * | 2014-03-03 | 2014-09-10 | 宝钢集团新疆八一钢铁有限公司 | Blast furnace and COREX furnace taphole thermocouple protection device |
| CN203758633U (en) * | 2014-03-18 | 2014-08-06 | 二重集团（德阳）重型装备股份有限公司 | Measuring structure for insulation effect of forging insulation sheath material |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108917960A (en) * | 2018-05-15 | 2018-11-30 | 首钢集团有限公司 | A kind of measuring device and method of billet heating temperature uniformity |
| CN108917960B (en) * | 2018-05-15 | 2020-08-25 | 首钢集团有限公司 | Device and method for measuring billet heating temperature uniformity |
| CN110082005A (en) * | 2019-05-23 | 2019-08-02 | 江西联创光电科技股份有限公司 | A kind of the nonuniform sampling measurement method and equipment of conductor bar internal temperature |
| CN110082006A (en) * | 2019-05-23 | 2019-08-02 | 江西联创光电科技股份有限公司 | A kind of the uniform sampling measurement method and equipment of conductor bar internal temperature |
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Application publication date: 20150401 |