CN1173795C - Thermocouple preparation and its apparatus - Google Patents
Thermocouple preparation and its apparatus Download PDFInfo
- Publication number
- CN1173795C CN1173795C CNB011312785A CN01131278A CN1173795C CN 1173795 C CN1173795 C CN 1173795C CN B011312785 A CNB011312785 A CN B011312785A CN 01131278 A CN01131278 A CN 01131278A CN 1173795 C CN1173795 C CN 1173795C
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- Prior art keywords
- voltage regulator
- thermocouple
- welding
- thermoelectric couple
- secondary coil
- 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.)
- Expired - Fee Related
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- 238000002360 preparation method Methods 0.000 title claims description 11
- 238000003466 welding Methods 0.000 claims abstract description 35
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 27
- 229910052751 metal Inorganic materials 0.000 claims abstract description 19
- 239000002184 metal Substances 0.000 claims abstract description 19
- 239000012528 membrane Substances 0.000 claims description 17
- 239000000295 fuel oil Substances 0.000 claims description 7
- 239000011324 bead Substances 0.000 claims description 3
- 239000004020 conductor Substances 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 150000002739 metals Chemical class 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 16
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 239000007772 electrode material Substances 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 238000011109 contamination Methods 0.000 description 3
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 3
- 239000012266 salt solution Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229910052753 mercury Inorganic materials 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005255 carburizing Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The present invention relates to a method for manufacturing a thermoelectric couple and a device for implementing the method. The present invention solves the defect problems of complex technology, inconvenient operation, high device prices, limited electrode materials, easily polluted thermoelectric couple, brittle failure, etc. in the process of manufacturing the thermoelectric couple. The present invention has the technical scheme that two kinds of metal conducting wires for manufacturing the thermoelectric couple are respectively cut into two wire segments of which the length is the same, and simultaneously, the two conducting wires are gathered and sheared by a pair of scissors as pre-welded contacts; two terminals of a primary coil of a voltage regulator are connected with an AC power supply, and additionally, two output terminals of a secondary coil of the voltage regulator are respectively connected with the non-pre-welded contacts and a tin film electrode of the welded thermoelectric couple; the tin film electrode is arranged in a container filled with the incombustible oil, and simultaneously, the output voltage of the voltage regulator is regulated after the power supply is switched on; the pre-welded contacts of the thermoelectric couple contact a tin film, and the thermoelectric couple is rapidly removed after arcing so as to form a small bright ball; finally, two metal electrodes of the thermoelectric couple are fetched from the secondary coil of the voltage regulator to accomplish the welding operation.
Description
(1) technical field
The present invention relates to the manufacture method of thermocouple and implement the device of this method.
(2) background technology
In the prior art, arc welding, argon arc welding, gas welding, carbon dust welding, salt solution welding, mercury welding etc. are extensively adopted in the manufacturing of thermocouple.Many manufacture methods all have weak point, and wherein arc-welding process is prone to the carburizing contamination on the electrode near pad reaches; The cost of equipment costliness that the argon arc welding connection is required, inapplicable common lab is used; Though gas welding is convenient, equipment manufacturing cost is lower, operation is difficult to grasp, and it and carbon dust weld and all easily cause the thermal cross brittle failure; Salt solution welding and mercury welding equipment are simple, cheap, but the salt solution welding has selectivity to electrode material, can not adopt the metal that electrolysis can take place in sodium chloride solution; When water silver soldering connects,, unfavorable to health because there is vapo(u)rability in mercury vapor.
(3) summary of the invention
At the deficiencies in the prior art, the invention provides a kind of thermocouple preparation and device thereof.Its method simple and reliable process, be convenient to the operation, health is not had harm.The device of implementing this method is cheap, and it is wide to adapt to the electrode material scope, can avoid thermocouple defectives such as contamination, brittle failure to occur.
Technical scheme of the present invention realizes as follows: a kind of thermocouple preparation, the steps include: that 1. two kinds of plain conductors will making thermocouple are cut into the suitable line segment of length according to instructions for use, and two leads are closed up, an end is had one's hair trimmed with scissors, as the pre-welding contact; 2. two terminals with the primary coil of voltage regulator connect AC power, connect the non-pre-welding end and the tin membrane electrode of soldered thermocouple respectively at two outputs of the secondary coil of voltage regulator; 3. the tin membrane electrode places in the container that non-easy fuel oil is housed; 4. energized is adjusted the output voltage of voltage regulator; 5. with the pre-welding contact contact tin film of thermocouple, the two kinds of metals in top are melted rapidly, speed away after the starting the arc, form bright bead; 6. take off two metal electrodes of thermocouple from the secondary coil of voltage regulator, finish welding.
According to technique scheme, wherein two leads in the step 1 close up for twisting into twisted shape; The output voltage of voltage regulator is about 80V in the step 4.
Implement the device of this method, it comprises voltage regulator, container, two inputs of the primary coil of voltage regulator connect AC power through switch, its design feature is, two outputs of the secondary coil of voltage regulator connect the non-pre-welding end and the tin membrane electrode of the thermocouple that needs welding respectively, and the tin membrane electrode immerses and is equipped with in the container of non-easy fuel oil.
According to above-mentioned technical scheme, the tin membrane electrode is to be made of the metal framework of conductive metallic material making and the tinfoil film that closely is attached on the metal framework, and an end of the secondary coil output of voltage regulator is connected with metal framework.
The present invention makes that the thermocouple welding equipment is simple in structure owing to adopted above-mentioned method and implemented the device of this method, and is cheap.Because the thermocouple welding is to carry out in having the container of non-easy fuel oil, therefore avoided thermocouple defectives such as contamination, brittle failure to occur again.Have simple to operate, the characteristics of good reliability.The thermocouple high conformity of making, and smooth surface have metallic luster, its precision reaches ± and 0.1 ℃, can be used as the secondary standard thermometer and use, be applicable to that the galvanic couple wire diameter is the cheap metal thermocouple making of 0.03mm to 0.5mm, has the value of extensively promoting the use of.
(4) description of drawings
Below in conjunction with the drawings and the specific embodiments the present invention is described in further detail.
Fig. 1 is a structure connection layout of the present invention;
Fig. 2 is tin film electrode structure figure of the present invention;
Fig. 3 is prewelding thermocouple shape figure of the present invention;
Fig. 4 contacts the direction schematic diagram for prewelding thermocouple of the present invention with the tin membrane electrode;
The thermocouple shape figure of Fig. 5 for using the present invention's welding to finish.
(5) embodiment
A kind of preparation method of thermocouple the steps include: that 1. two kinds of plain conductors will making thermocouple are cut into the suitable line segment of length according to instructions for use, and two leads are closed up twists into twisted shape, and an end is had one's hair trimmed with scissors, as the pre-welding contact, as shown in Figure 3.2. two terminals with the primary coil of voltage regulator connect AC power, connect the non-pre-welding end and the tin membrane electrode of soldered thermocouple respectively at two outputs of the secondary coil of voltage regulator.3. the tin membrane electrode is placed in the container that non-easy fuel oil is housed.4. energized, the output voltage of adjusting voltage regulator is about 80V.5. with the pre-welding contact contact tin film of thermocouple, the two kinds of metals in top are melted rapidly, speed away after the starting the arc, form bright bead.6. take off two metal electrodes of thermocouple from the secondary coil of voltage regulator, finish welding, as shown in Figure 5.
Referring to Fig. 1 and Fig. 2, implement the device of thermocouple preparation, comprise voltage regulator 1 and the container 3 of non-easy fuel oil be housed that two inputs of the primary coil of voltage regulator 1 connect AC power by mains switch 5.Two outputs of the secondary coil of voltage regulator 1 connect the non-pre-welding end of the thermocouple 2 that needs welding respectively and put into the tin membrane electrode 4 of container 3, and tin membrane electrode 4 is to be made of conductive metallic material metal framework of making 6 and the tinfoil film 7 that is attached on the metal framework 6.One end of the secondary coil output of voltage regulator 1 is connected with metal framework 6.
The use of this device, except that method according to the invention described above, should be with tin membrane electrode 4 horizontal positioned that place in the container 3, but it is fixing by the frock jig of the non-weldering end of welding heat galvanic couple 2 to make the removable mounting that joins with voltage regulator 1 secondary coil output, make the prewelding contact of thermocouple 2 and the plane of tin membrane electrode 4 keep vertical direction, as shown in Figure 4.Be beneficial to realize the mass production of thermocouple.What be worth proposition is no matter which kind of shape is the external form of thermocouple be, as long as can adopt method of the present invention and device thereof to produce, all to belong to protection scope of the present invention.
Claims (5)
1. the preparation method of a thermocouple the steps include: that 1. two kinds of plain conductors will making thermocouple are cut into the suitable line segment of length according to instructions for use, and two leads is closed up that an end is had one's hair trimmed with scissors, as the pre-welding contact; 2. two terminals with the primary coil of voltage regulator connect AC power, connect the non-pre-welding end and the tin membrane electrode of soldered thermocouple respectively at two outputs of the secondary coil of voltage regulator; 3. the tin membrane electrode places in the container that non-easy fuel oil is housed; 4. energized is adjusted the output voltage of voltage regulator; 5. with the pre-welding contact contact tin film of thermocouple, the two kinds of metals in top are melted rapidly, speed away after the starting the arc, form the bead of brilliant shell; 6. take off two metal electrodes of thermocouple from the secondary coil of voltage regulator, finish welding.
2. according to the preparation method of the described a kind of thermocouple of claim 1, it is characterized in that two leads close up for twisting into twisted shape in the described step 1.
3. according to the preparation method of the described a kind of thermocouple of claim 1, it is characterized in that the output voltage of voltage regulator is about 80V in the described step 4.
4. according to the device of the described thermocouple preparation of claim 1, it comprises voltage regulator (1), container (3), two inputs of the primary coil of voltage regulator (1) connect AC power through switch (5), it is characterized in that, two outputs of the secondary coil of voltage regulator (1) connect the non-pre-welding contact and the tin membrane electrode (4) of the thermocouple (2) that needs welding respectively, and tin membrane electrode (4) immerses and is equipped with in the container (3) of non-easy fuel oil (5).
5. according to the device of the described thermocouple preparation of claim 4, it is characterized in that, described tin membrane electrode (4) is the metal framework of being made by conductive metallic material (6) and is attached to tinfoil film (7) formation on the metal framework (6) that one end of the secondary coil output of voltage regulator (1) is connected with metal framework (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011312785A CN1173795C (en) | 2001-09-05 | 2001-09-05 | Thermocouple preparation and its apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011312785A CN1173795C (en) | 2001-09-05 | 2001-09-05 | Thermocouple preparation and its apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1406704A CN1406704A (en) | 2003-04-02 |
| CN1173795C true CN1173795C (en) | 2004-11-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011312785A Expired - Fee Related CN1173795C (en) | 2001-09-05 | 2001-09-05 | Thermocouple preparation and its apparatus |
Country Status (1)
| Country | Link |
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| CN (1) | CN1173795C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100503124C (en) * | 2006-12-31 | 2009-06-24 | 中国科学院工程热物理研究所 | Thermocouple butt welding machine and welding method thereof |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102513659B (en) * | 2011-12-14 | 2015-05-20 | 北京卫星环境工程研究所 | Thermocouple welding method and welding device |
| CN102528219A (en) * | 2011-12-27 | 2012-07-04 | 深圳深爱半导体股份有限公司 | Thermocouple welding device and welding method |
| CN102601478B (en) * | 2012-03-15 | 2014-10-22 | 哈尔滨工业大学 | Method for brazing stainless steel tube and internal copper wire for acupunctur |
| CN103231150B (en) * | 2013-04-09 | 2015-08-26 | 昆明理工大学 | A kind of thermocouple welding method and device thereof |
| CN105790585A (en) * | 2014-12-24 | 2016-07-20 | 厦门兰智科技有限公司 | Thermoelectric direct current voltage stabilizer |
| CN109530848B (en) * | 2018-11-20 | 2020-11-10 | 西安近代化学研究所 | Quick response tungsten-rhenium thermocouple welding method |
| RU2759827C1 (en) * | 2021-02-12 | 2021-11-18 | Федеральное государственное бюджетное учреждение науки Институт металлургии и материаловедения им. А.А. Байкова Российской академии наук (ИМЕТ РАН) | Method for producing high-temperature ceramic thermoelectric converters for high-temperature thermometry from nitrides of elements of titanium and vanadium subgroups using method for oxidative engineering |
-
2001
- 2001-09-05 CN CNB011312785A patent/CN1173795C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100503124C (en) * | 2006-12-31 | 2009-06-24 | 中国科学院工程热物理研究所 | Thermocouple butt welding machine and welding method thereof |
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| CN1406704A (en) | 2003-04-02 |
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| C56 | Change in the name or address of the patentee |
Owner name: TONGFANG CO., LTD.; QINGHUA UNIVERSITY Free format text: FORMER NAME OR ADDRESS: TSINGHUA TONGFANG CO., LTD.; QINGHUA UNIVERSITY |
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Address after: 100083 Beijing Tsinghua Tongfang science and Technology Square A block 2907 Co-patentee after: Tsinghua University Patentee after: Tongfang Co., Ltd. Address before: 100083 Beijing Tsinghua Tongfang science and Technology Square A block 2907 Co-patentee before: Tsinghua University Patentee before: Qinghua Tongfang Co., Ltd. |
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Granted publication date: 20041103 Termination date: 20110905 |