CN103691748A - Method for accurately controlling meter-resistance value of nickel-chromium electric thermal alloy wire - Google Patents
Method for accurately controlling meter-resistance value of nickel-chromium electric thermal alloy wire Download PDFInfo
- Publication number
- CN103691748A CN103691748A CN201310676544.5A CN201310676544A CN103691748A CN 103691748 A CN103691748 A CN 103691748A CN 201310676544 A CN201310676544 A CN 201310676544A CN 103691748 A CN103691748 A CN 103691748A
- Authority
- CN
- China
- Prior art keywords
- resistance
- resistance value
- value
- cold
- meter
- 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.)
- Granted
Links
Abstract
The invention belongs to the field of electric thermal alloy wire machining and manufacturing, and in particular relates to a method for accurately controlling the meter-resistance value of a nickel-chromium electric thermal alloy wire. The method comprises the following steps: calculating the meter-resistance value Rcold in a cold state of a drawing state by utilizing a general formula (1-1), matching a mold for controlling by taking Rupper=Rcold*1.02 as the upper limit value of the meter resistance for the control in a drawing process and taking Rlower=Rcold*0.98 as the lower limit value of the meter resistance for the control in the drawing process; placing a resistance measurement instrument at an electric heating wire drawing field; when the alloy wire is started to be drawn, measuring the meter resistance in the drawing state; when the meter resistance value is higher than Rupper, replacing a drawing mold with a larger wire diameter; and when the meter resistance value is lower than Rlower, replacing a drawing mold with a smaller wire diameter, so that the meter resistance in the cold drawing state is in a required range. According to the method, the meter resistance value of a finished thin electric thermal alloy wire is controlled with the range of +/-3 percent of a mid-value of a target meter resistance value.
Description
Affiliated technical field
The invention belongs to the processing and manufacturing field of lectrothermal alloy wire, relate to a kind of method of accurate control nickel chromium triangle electrothermal alloy decimillimeter resistance value.
Background technology
At present, the GB/T1234-2012 standard of high-resistance electrothermic alloy silk, require filament rice resistance fluctuation value be not more than ± 5%, conventionally by the string diameter scope of national standard requirement, carry out lectrothermal alloy wire drawing, rice resistance exceeds the situation of critical field much to be seen, especially the lectrothermal alloy wire of nichrome Cr20Ni80 and two trades mark of nichrome Cr15Ni60.And lectrothermal alloy wire user often require electrothermal alloy rice resistance range be reduced to ± 3%, by standard string diameter tolerance, carry out meter resistance to control and carry out wire drawing, the finished silk rate that is up to the standards only has 50% left and right.So need to explore a kind of accurate control technology of science more of lectrothermal alloy wire.
Summary of the invention:
The low deficiency of rice resistance qualification rate causing by the drawing of the string diameter margin of tolerance in order to overcome existing nichrome wire, the invention provides a kind of method of accurate control nickel chromium triangle electrothermal alloy decimillimeter resistance value, the method is passed through at finished product wire-drawing process, setting is different from the cold-state resistance scope of annealing finished silk target resistance range, measure the rice resistance of as-drawn B alloy wire, and whether root Ju rice resistance actual measured value reaches the cold-state resistance scope of setting, before drawing, by mould, select rational string diameter, alloy decimillimeter resistance value fluctuation range can be controlled to ± 3% scope, and the higher qualification rate of assurance.
The invention is characterized in:
(1) analytic statistics is found after tested, Cr20Ni80 electrothermal alloy filament, and as-drawn resistivity is 0.91 times of the rear resistivity of its annealing, Cr15Ni60 electrothermal alloy filament, the resistivity of as-drawn is 0.95 times of the rear resistivity of its annealing.
(2) utilize formula (1-1) to calculate the cold conditions rice resistance value R of as-drawn
cold.
R
cold=(ρ B) L/S----------------(1-1)
R
coldthe room temperature rice resistance intermediate value of-as-drawn, Ω
The filament resistivity intermediate value that ρ-finished product requires, Ω .m
B-cold-state resistance rate correction factor
L-tests sample length, and when R is every meter of resistance, L value is got 1m
The cross-sectional area of S-filament, S=π D
2/ 4, m
2
D-B alloy wire diameter, mm
With R
on=R
cold* 1.02 rice resistance higher limits of controlling as drawing process, with R
under=R
cold* 0.98 rice lower resistance limit value of controlling as drawing process is joined mould and is controlled.
(3), at a resistance measuring instrument of the on-the-spot placement of heating wire drawing, when starting drawing, measure the rice resistance of as-drawn, when rice resistance value is higher than R
ontime, change the larger wire drawing die of string diameter; When rice resistance value is lower than R
undertime, change the less wire drawing die of string diameter; With this, guarantee that cold drawing state rice resistance is in the scope requiring.By the method, can make the rice resistance value of electrothermal alloy filament finished product be controlled at target rice resistance intermediate value ± 3% scope in.
Major advantage of the present invention is, can be before heating wire drawing process formally carry out, accurately set the rice resistance value of finished product filament after Drawing-anneal, and improve a rice resistance qualification rate, dwindle a meter resistance fluctuation scope.
Specific embodiment:
Table 1, with 0.91 times of embodiment that controls Cr20Ni80
For certain client Cr20Ni80 φ 0.32mm contract rice resistance statistics
Table 2, with 0.95 times of embodiment that controls Cr15Ni60
For certain client Cr15Ni60 φ 0.28mm contract rice resistance statistics
Claims (2)
1. accurately control a method for nickel chromium triangle electrothermal alloy decimillimeter resistance value, it is characterized in that:
(1) the cold conditions rice resistance value R of as-drawn
coldpressing formula (1-1) calculates:
R
cold=(ρ B) L/S----------------(1-1)
R
coldthe room temperature rice resistance intermediate value of-as-drawn, Ω
The filament resistivity intermediate value that ρ-finished product requires, Ω .m
B-cold-state resistance rate correction factor
L-tests sample length, and when R is every meter of resistance, L value is got 1m
The cross-sectional area of S-filament, S=π D
2/ 4, m
2
D-B alloy wire diameter, mm
With R
on=R
cold* 1.02 rice resistance higher limits of controlling as drawing process, with R
under=R
cold* 0.98 rice lower resistance limit value of controlling as drawing process is joined mould and is controlled;
(2), at a resistance measuring instrument of the on-the-spot placement of heating wire drawing, when starting drawing, measure the rice resistance of as-drawn, when rice resistance value is higher than R
ontime, change the larger wire drawing die of string diameter; When rice resistance value is lower than R
undertime, change the less wire drawing die of string diameter.
2. the method for a kind of accurate control nickel chromium triangle electrothermal alloy decimillimeter resistance value according to claim 1, is characterized in that: nickel chromium triangle lectrothermal alloy wire used is Cr20Ni80 and two trades mark of Cr15Ni60.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310676544.5A CN103691748B (en) | 2013-12-13 | 2013-12-13 | A kind of method of accurate control meter-resistance value of nickel-chromium electric thermal alloy wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310676544.5A CN103691748B (en) | 2013-12-13 | 2013-12-13 | A kind of method of accurate control meter-resistance value of nickel-chromium electric thermal alloy wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103691748A true CN103691748A (en) | 2014-04-02 |
| CN103691748B CN103691748B (en) | 2016-01-06 |
Family
ID=50353504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310676544.5A Active CN103691748B (en) | 2013-12-13 | 2013-12-13 | A kind of method of accurate control meter-resistance value of nickel-chromium electric thermal alloy wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103691748B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104233184A (en) * | 2014-08-26 | 2014-12-24 | 盐城市鑫洋电热材料有限公司 | Preparation method of nickel-chromium electrothermal alloy with aluminized surface |
| CN107805688A (en) * | 2017-11-03 | 2018-03-16 | 北京首钢吉泰安新材料有限公司 | A kind of method for controlling Aludirome filament rice resistance fluctuation scope |
| CN110731545A (en) * | 2019-10-18 | 2020-01-31 | 深圳麦克韦尔科技有限公司 | Atomization assembly heating control method and device, electronic atomization device and storage medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS566722A (en) * | 1979-06-30 | 1981-01-23 | Nippon Steel Corp | Watching method for lubricating condition at wire drawing work |
| CN101231197A (en) * | 2007-01-25 | 2008-07-30 | 袁勤华 | Preparation technique for cuprum peptide-cuprum nickel compensating conductor and alloy wire thereof |
| CN102707152A (en) * | 2012-06-04 | 2012-10-03 | 西南交通大学 | On-line detecting device for resistance value of resistance winding machine |
-
2013
- 2013-12-13 CN CN201310676544.5A patent/CN103691748B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS566722A (en) * | 1979-06-30 | 1981-01-23 | Nippon Steel Corp | Watching method for lubricating condition at wire drawing work |
| CN101231197A (en) * | 2007-01-25 | 2008-07-30 | 袁勤华 | Preparation technique for cuprum peptide-cuprum nickel compensating conductor and alloy wire thereof |
| CN102707152A (en) * | 2012-06-04 | 2012-10-03 | 西南交通大学 | On-line detecting device for resistance value of resistance winding machine |
Non-Patent Citations (4)
| Title |
|---|
| 唐景远，王承宝: "彩色显象管用发泡镍丝米电阻在线检测方法及误差分析评估", 《电子与自动化》 * |
| 徐海斌等: "铜基合金电阻率的测量方法", 《江苏冶金》 * |
| 赵毅等: "钨铼合金丝米电阻随直径变化的统计分析", 《真空电子技术》 * |
| 金其坚等: "关于钨丝直径的控制(Ⅰ)――钨丝直径的测量", 《稀有金属》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104233184A (en) * | 2014-08-26 | 2014-12-24 | 盐城市鑫洋电热材料有限公司 | Preparation method of nickel-chromium electrothermal alloy with aluminized surface |
| CN107805688A (en) * | 2017-11-03 | 2018-03-16 | 北京首钢吉泰安新材料有限公司 | A kind of method for controlling Aludirome filament rice resistance fluctuation scope |
| CN110731545A (en) * | 2019-10-18 | 2020-01-31 | 深圳麦克韦尔科技有限公司 | Atomization assembly heating control method and device, electronic atomization device and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103691748B (en) | 2016-01-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103691748A (en) | Method for accurately controlling meter-resistance value of nickel-chromium electric thermal alloy wire | |
| CN106782951A (en) | The resistance trimming method of thin-film thermistor and the manufacture method of diaphragm type thermistor | |
| CN205821415U (en) | Mechanical control equipment for Ti 6Al 4V alloy wire rapid thermal treatment | |
| CN109557374A (en) | The test device and method of small resistive element temperature-coefficient of electrical resistance | |
| CN204188296U (en) | A kind of thermometric armoured thermal resistance | |
| CN106155134A (en) | A kind of enrichment pipe temp. control method and attemperating unit | |
| CN101658355B (en) | Temperature correction device and method for hair straightener | |
| CN205748648U (en) | A kind of infrared radiation thermometer calibration equipment | |
| CN204404264U (en) | A kind of gas-cooker of accurate display firepower size | |
| CN203937082U (en) | A kind of can automatically adjusting dripped the molding machine that drips of moulding height | |
| CN105973923A (en) | Experiment method of phase transition temperature of copper-based memory alloy micro-area | |
| CN203386551U (en) | Copper sheathing leading-out type resistance voltage divider | |
| CN203386557U (en) | Glass glaze resistance voltage divider with voltage division ratio of 1:(1000-10000) | |
| CN202570222U (en) | Thermostatic bath with multi-point zero setting function | |
| CN201838997U (en) | Power-on protection circuit | |
| CN203316528U (en) | Heating power straightening machine | |
| CN205919896U (en) | Radiation pyrometer testing arrangement | |
| CN203629721U (en) | Temperature measuring instrument | |
| CN203386550U (en) | High-precision copper sleeve lead-out type resistance voltage divider | |
| CN105629077B (en) | A kind of device and method measuring molten glass conductivity | |
| CN203217405U (en) | High-precision automatic controller for thermostatic bath | |
| CN104215086A (en) | Resistance furnace temperature control system | |
| CN201935881U (en) | Temperature-control mortar coagulation time tester | |
| CN105300561A (en) | Apparatus and method for measuring response time of temperature sensor | |
| CN204990024U (en) | Accuse temperature ceramic heating sheet and temperature control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |