CN102735361A - High-precision nickel-chromium/copper-nickel thermocouple alloy wires - Google Patents
High-precision nickel-chromium/copper-nickel thermocouple alloy wires Download PDFInfo
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- CN102735361A CN102735361A CN2012101925284A CN201210192528A CN102735361A CN 102735361 A CN102735361 A CN 102735361A CN 2012101925284 A CN2012101925284 A CN 2012101925284A CN 201210192528 A CN201210192528 A CN 201210192528A CN 102735361 A CN102735361 A CN 102735361A
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Abstract
The invention discloses high-precision nickel-chromium/copper-nickel thermocouple alloy wires and a production process thereof. A nickel-chromium thermocouple alloy wire comprises the components of chromium, cobalt, silicon, calcium, yttrium, carbon, sulfur, iron, nickel and a misch metal; a copper-nickel thermocouple alloy wire comprises the components of nickel, manganese, magnesium, calcium, carbon, sulfur and copper; and the process comprises the following steps of: (a), preparing raw materials; (b), performing vacuum melting; (c), performing hot rolling; (d), performing wire drawing and annealing; and (e), testing finished products, packaging the finished products to leave factory. The nickel-chromium/copper-nickel thermocouple alloy wires, which are produced according to a unique product formula and by the unique production process, can reach a high-precision I-grade level.
Description
Technical field
The present invention relates to the alloy application, especially a kind of high precision nickel chromium triangle-CopperNickel thermocouple alloy silk.
Background technology
Nickel chromium triangle-CopperNickel thermocouple alloy silk is mainly used in makes E type thermopair.The stability of E type thermopair and the size of thermometric deviation depend primarily on the thermopower accuracy class of nickel chromium triangle-CopperNickel thermocouple alloy silk; Standard GB/T4993-2010 " nickel chromium triangle-copper nickel (constantan) thermocouple wire " is divided into I, II, III level with the thermopower accuracy class; E type thermocouple stabilization property with high-precision I level nickel chromium triangle-CopperNickel thermocouple alloy silk is made is best, and the thermometric deviation is also minimum.In the production run of other each factories of China, because the restriction of technology, the nickel chromium triangle of producing-CopperNickel thermocouple alloy silk hit rate is very low, can reach " high precision ", just can reach the seldom part of having only of I level.In order to satisfy client's needs, can only select, to produce a lot of products and can pick out a part just so just cause, thereby make production cost very high, and cause the waste of material.
Summary of the invention
The technical matters that the present invention will solve is: overcome the deficiency in the prior art, a kind of high precision nickel chromium triangle-CopperNickel thermocouple alloy silk that adopts unique formula for a product and production technology to produce is provided.
The technical solution adopted for the present invention to solve the technical problems is: a kind of high precision nickel chromium triangle-CopperNickel thermocouple alloy silk; Have anodal conductor and cathode conductor; Anodal conductor is a nichrome wire, and its chemical composition percentage by weight is: chromium 9.5 ± 0.02%, cobalt 1.0 ± 0.02%, silicon 0.40 ± 0.02%, calcium 0.05 ± 0.005%, yttrium 0.05 ± 0.005%, mishmetal 0.05 ± 0.005%, be not more than 0.04% carbon, be not more than 0.005% sulphur, be not more than 0.05% the iron and the nickel of surplus; Cathode conductor is a Contra wire, and its chemical composition percentage by weight is: nickel 43.5 ± 0.02%, manganese 0.4 ± 0.01%, magnesium 0.16 ± 0.01%, calcium 0.05 ± 0.01%, be not more than 0.1% carbon, be not more than 0.01% the sulphur and the copper of surplus.
Make such high precision nickel chromium triangle-CopperNickel thermocouple alloy silk and adopt following processing step: a. starting material are prepared; B. vacuum melting; C. hot rolling; D. wire drawing, annealing; E. the finished product detection packing is dispatched from the factory.
Processing step b. vacuum melting is meant and uses the vacuum medium frequency induction furnace melting that its vacuum tightness should reach the 10-2mm mercury column; The appearance of getting end to end of every stove alloy pig is analyzed, and is not more than 0.05% as the content of the iron of impurity.
Processing step c. hot rolling is meant alloy pig is rolled into the blank that diameter is Φ 8 ㎜, then there be cutting end to end of defective in Φ 8 ㎜ blanks.
In processing step d. wire drawing, annealing, adopt lubricant during wire drawing; The Reduction per draft of wire drawing is in 60% ~ 65% scope; The annealing temperature of finished product nickel chromium triangle-CopperNickel thermocouple alloy silk is no more than in processing range ± and 10 ℃; The finished product nickel chromium triangle of surface oxidation-CopperNickel thermocouple alloy silk is put into the shaft furnace that is equipped with reductive agent in advance, under vacuum state, carries out annealing in process.
In processing step e. finished product detection packing is dispatched from the factory process; Nickel chromium triangle-when the pairing of CopperNickel thermocouple alloy silk is tested; Its thermopower numerical value is answered the Ι level product standard of National standard GB/T4993-2010 regulation, dwindles on the basis of Ι level product standard with the corresponding thermometric deviation of thermopower numerical value ± 0.5 ℃ again.
The invention has the beneficial effects as follows: the nickel chromium triangle-CopperNickel thermocouple alloy silk that adopts unique formula for a product of the present invention and production technology to produce can all reach high-precision I level level, thereby has improved the production efficiency of enterprise, has reduced the production cost of enterprise.Also all reach I level level with its thermopair of making, thereby dwindled the thermometric deviation of thermopair, improved the stability of thermopair, prolonged the serviceable life of thermopair, reduced the waste of scarce resource.
Embodiment
In conjunction with the preferred embodiments the present invention is further described now.
A kind of high precision nickel chromium triangle-CopperNickel thermocouple alloy silk; Have anodal conductor and cathode conductor; Anodal conductor is a nichrome wire, and its chemical composition percentage by weight is: chromium 9.5 ± 0.02%, cobalt 1.0 ± 0.02%, silicon 0.40 ± 0.02%, calcium 0.05 ± 0.005%, yttrium 0.05 ± 0.005%, mishmetal 0.05 ± 0.005%, be not more than 0.04% carbon, be not more than 0.005% sulphur, be not more than 0.05% the iron and the nickel of surplus; Described cathode conductor is a Contra wire, and its chemical composition percentage by weight is: nickel 43.5 ± 0.02%, manganese 0.4 ± 0.01%, magnesium 0.16 ± 0.01%, calcium 0.05 ± 0.01%, be not more than 0.1% carbon, be not more than 0.01% the sulphur and the copper of surplus.
The concrete processing step of above-mentioned high precision nickel chromium triangle-CopperNickel thermocouple alloy silk is following:
A. starting material are prepared:
Be ready to essential starting material.
B. vacuum melting:
Before the vacuum melting, should guarantee that vacuum tightness reaches 10 in the ZG-25 type vacuum medium frequency induction furnace
-2The mm mercury column; Be to guarantee the high precision of product, also will the appearance of getting end to end of every stove alloy pig be analyzed, be not more than 0.05% as the content of the iron of impurity.
C. hot rolling:
Alloy pig is rolled into the blank that diameter is Φ 8 ㎜,, eliminating the blank defective that exists of part end to end, thereby guarantees the high precision of product then with the alloy of cutting about 0.3 ~ 0.7 kilogram weight end to end of blank.D. wire drawing, annealing:
During wire drawing, nichrome wire adopts import wire drawing powder as lubricant, and Contra wire adopts vegetable oil as lubricant; The Reduction per draft of wire drawing is controlled in 60% ~ 65% scope, to remove the oxide skin on alloy silk surface; The annealing temperature of finished product nichrome wire is 1050 ± 10 ℃, and the annealing temperature of finished product Contra wire is 900 ± 10 ℃; After the wire drawing, the finished product of surface oxidation nickel chromium triangle-CopperNickel thermocouple alloy silk is put into the shaft furnace that is equipped with in advance as the charcoal of reductive agent, under vacuum state, carries out annealing in process.
E. the finished product detection packing is dispatched from the factory:
Nickel chromium triangle-when the pairing of CopperNickel thermocouple alloy silk was tested, its thermopower numerical value was answered the Ι level product standard of National standard GB/T4993-2010 regulation.The scope of thermopower can be converted into temperature range and represent.Dwindle again on the basis of Ι level product standard with the corresponding thermometric deviation of thermopower numerical value ± 0.5 ℃.Temperature deviation is no more than dut temperature ± 0.4%, and the deviation that for example the I class precision allows 1000 ℃ the time is ± 4 ℃, 800 ℃ be ± 3.2 ℃, by that analogy, but the I class precision standard code below 300 ℃ all be ± 1.5 ℃.
For the thermopower that guarantees product reaches high precision, the degree of accuracy of the testing tool that uses in the production run will reach more than 0.01 grade, and the total error of test macro can not be above 0.25 ℃.
The foregoing description only is explanation technical conceive of the present invention and characteristics; Its purpose is to let the personage that is familiar with this technology can understand content of the present invention and implements; Can not limit protection scope of the present invention with this; All equivalences that spirit is done according to the present invention change or modify, and all should be encompassed in protection scope of the present invention.
Claims (6)
1. high precision nickel chromium triangle-CopperNickel thermocouple alloy silk; Have anodal conductor and cathode conductor; It is characterized in that: described anodal conductor is a nichrome wire, and its chemical composition percentage by weight is: chromium 9.5 ± 0.02%, cobalt 1.0 ± 0.02%, silicon 0.40 ± 0.02%, calcium 0.05 ± 0.005%, yttrium 0.05 ± 0.005%, mishmetal 0.05 ± 0.005%, be not more than 0.04% carbon, be not more than 0.005% sulphur, be not more than 0.05% the iron and the nickel of surplus; Described cathode conductor is a Contra wire, and its chemical composition percentage by weight is: nickel 43.5 ± 0.02%, manganese 0.4 ± 0.01%, magnesium 0.16 ± 0.01%, calcium 0.05 ± 0.01%, be not more than 0.1% carbon, be not more than 0.01% the sulphur and the copper of surplus.
2. a method of making the described high precision nickel chromium triangle of claim 1-CopperNickel thermocouple alloy silk is characterized in that: have following steps: the preparation of a. starting material; B. vacuum melting; C. hot rolling; D. wire drawing, annealing; E. the finished product detection packing is dispatched from the factory.
3. the method for manufacturing high precision nickel chromium triangle according to claim 2-CopperNickel thermocouple alloy silk is characterized in that: described b. vacuum melting is meant and uses the vacuum medium frequency induction furnace melting that its vacuum tightness should reach 10
-2The mm mercury column; The appearance of getting end to end of every stove alloy pig is analyzed, and is not more than 0.05% as the content of the iron of impurity.
4. the method for manufacturing high precision nickel chromium triangle according to claim 2-CopperNickel thermocouple alloy silk is characterized in that: described c. hot rolling is meant alloy pig is rolled into the blank that diameter is Φ 8 ㎜, then there be cutting end to end of defective in Φ 8 ㎜ blanks.
5. the method for manufacturing high precision nickel chromium triangle according to claim 2-CopperNickel thermocouple alloy silk is characterized in that: in described d. wire drawing, annealing process, adopt lubricant during wire drawing; The Reduction per draft of wire drawing is in 60% ~ 65% scope; The annealing temperature of finished product nickel chromium triangle-CopperNickel thermocouple alloy silk is no more than in processing range ± and 10 ℃; The finished product nickel chromium triangle of surface oxidation-CopperNickel thermocouple alloy silk is put into the shaft furnace that is equipped with reductive agent in advance, under vacuum state, carries out annealing in process.
6. the method for manufacturing high precision nickel chromium triangle according to claim 2-CopperNickel thermocouple alloy silk; It is characterized in that: in described e. finished product detection packing is dispatched from the factory process; Nickel chromium triangle-when the pairing of CopperNickel thermocouple alloy silk is tested; Its thermopower numerical value is answered the Ι level product standard of National standard GB/T4993-2010 regulation, dwindles on the basis of Ι level product standard with the corresponding thermometric deviation of thermopower numerical value ± 0.5 ℃ again.
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103060615A (en) * | 2013-01-28 | 2013-04-24 | 江苏华鑫合金有限公司 | Positive temperature coefficient (PTC) thermal resistance alloy wire and preparation method thereof |
| CN104651666A (en) * | 2013-01-28 | 2015-05-27 | 江苏华鑫合金有限公司 | PTC thermistor alloy wire and preparation method thereof |
| CN104651667A (en) * | 2013-01-28 | 2015-05-27 | 江苏华鑫合金有限公司 | PTC thermistor alloy wire with high resistance temperature coefficient and preparation method of PTC thermistor alloy wire |
| CN108220689A (en) * | 2017-11-29 | 2018-06-29 | 重庆材料研究院有限公司 | High temperature long-time stable thermometric K-type thermocouple positive electrode and preparation method |
| CN109518016A (en) * | 2018-10-10 | 2019-03-26 | 安徽鑫国合金有限公司 | A kind of production technology of sensor 20 compensating wire alloy wire of copper-cupro-nickel |
| CN109837427A (en) * | 2017-11-28 | 2019-06-04 | 丹阳市延陵镇优越合金厂 | A kind of alloy conductive silk and preparation method thereof |
| CN109837429A (en) * | 2017-11-28 | 2019-06-04 | 丹阳市延陵镇优越合金厂 | A kind of high-voltage board alloy material preparation method |
| CN111799013A (en) * | 2020-07-27 | 2020-10-20 | 昆山安胜达微波科技有限公司 | Flexible high-precision N-type thermocouple sensor cable |
| CN112021676A (en) * | 2020-09-27 | 2020-12-04 | 胥海洲 | High-precision heating temperature control circuit and control method thereof |
| RU2749409C1 (en) * | 2020-09-25 | 2021-06-09 | Акционерное общество "Металлургический завод "Электросталь" | Method for smelting high-chromium nickel alloy of ep648-vi grade |
| CN116782736A (en) * | 2023-08-18 | 2023-09-19 | 江苏安胜达航天科技股份有限公司 | Thermoelectric couple capable of adjusting thermoelectric potential and manufacturing method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101231197A (en) * | 2007-01-25 | 2008-07-30 | 袁勤华 | Preparation technique for cuprum peptide-cuprum nickel compensating conductor and alloy wire thereof |
| CN101476946A (en) * | 2009-01-14 | 2009-07-08 | 袁勤华 | K type thermocouple alloy wire and its production method |
| CN202084325U (en) * | 2011-05-18 | 2011-12-21 | 安徽弘毅电缆集团有限公司 | Fire-resistant compensating lead wire for thermocouple |
-
2012
- 2012-06-13 CN CN2012101925284A patent/CN102735361A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101231197A (en) * | 2007-01-25 | 2008-07-30 | 袁勤华 | Preparation technique for cuprum peptide-cuprum nickel compensating conductor and alloy wire thereof |
| CN101476946A (en) * | 2009-01-14 | 2009-07-08 | 袁勤华 | K type thermocouple alloy wire and its production method |
| CN202084325U (en) * | 2011-05-18 | 2011-12-21 | 安徽弘毅电缆集团有限公司 | Fire-resistant compensating lead wire for thermocouple |
Non-Patent Citations (2)
| Title |
|---|
| 未记载: "《镍铬-康铜低温热电偶材料》", 《上海有色金属》 * |
| 机械工业部重庆仪表材料研究所等: "镍铬-铜镍（康铜）热电偶丝", 《中华人民共和国国家标准GB/T 4993-1998》 * |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103060615A (en) * | 2013-01-28 | 2013-04-24 | 江苏华鑫合金有限公司 | Positive temperature coefficient (PTC) thermal resistance alloy wire and preparation method thereof |
| CN104651666A (en) * | 2013-01-28 | 2015-05-27 | 江苏华鑫合金有限公司 | PTC thermistor alloy wire and preparation method thereof |
| CN104651667A (en) * | 2013-01-28 | 2015-05-27 | 江苏华鑫合金有限公司 | PTC thermistor alloy wire with high resistance temperature coefficient and preparation method of PTC thermistor alloy wire |
| CN104651666B (en) * | 2013-01-28 | 2017-04-19 | 江苏华鑫合金有限公司 | PTC thermistor alloy wire and preparation method thereof |
| CN104651667B (en) * | 2013-01-28 | 2017-07-11 | 江苏华鑫合金有限公司 | PTC thermistor B alloy wire of high temperature coefficient of resistance and preparation method thereof |
| CN109837429A (en) * | 2017-11-28 | 2019-06-04 | 丹阳市延陵镇优越合金厂 | A kind of high-voltage board alloy material preparation method |
| CN109837427A (en) * | 2017-11-28 | 2019-06-04 | 丹阳市延陵镇优越合金厂 | A kind of alloy conductive silk and preparation method thereof |
| CN108220689A (en) * | 2017-11-29 | 2018-06-29 | 重庆材料研究院有限公司 | High temperature long-time stable thermometric K-type thermocouple positive electrode and preparation method |
| CN108220689B (en) * | 2017-11-29 | 2020-05-12 | 重庆材料研究院有限公司 | High-temperature long-time stable temperature measurement K-type thermocouple positive electrode material and preparation method thereof |
| CN109518016A (en) * | 2018-10-10 | 2019-03-26 | 安徽鑫国合金有限公司 | A kind of production technology of sensor 20 compensating wire alloy wire of copper-cupro-nickel |
| CN111799013A (en) * | 2020-07-27 | 2020-10-20 | 昆山安胜达微波科技有限公司 | Flexible high-precision N-type thermocouple sensor cable |
| CN111799013B (en) * | 2020-07-27 | 2022-12-09 | 昆山安胜达微波科技有限公司 | Flexible high-precision N-type thermocouple sensor cable |
| RU2749409C1 (en) * | 2020-09-25 | 2021-06-09 | Акционерное общество "Металлургический завод "Электросталь" | Method for smelting high-chromium nickel alloy of ep648-vi grade |
| CN112021676A (en) * | 2020-09-27 | 2020-12-04 | 胥海洲 | High-precision heating temperature control circuit and control method thereof |
| CN116782736A (en) * | 2023-08-18 | 2023-09-19 | 江苏安胜达航天科技股份有限公司 | Thermoelectric couple capable of adjusting thermoelectric potential and manufacturing method thereof |
| CN116782736B (en) * | 2023-08-18 | 2023-11-03 | 江苏安胜达航天科技股份有限公司 | Thermoelectric couple capable of adjusting thermoelectric potential and manufacturing method thereof |
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Application publication date: 20121017 |