CN1260573A - High-power non-induction synthetic resistance and its production method - Google Patents
High-power non-induction synthetic resistance and its production method Download PDFInfo
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- CN1260573A CN1260573A CN 99112626 CN99112626A CN1260573A CN 1260573 A CN1260573 A CN 1260573A CN 99112626 CN99112626 CN 99112626 CN 99112626 A CN99112626 A CN 99112626A CN 1260573 A CN1260573 A CN 1260573A
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- clay
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- mullite
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Abstract
The high-power noninductive synthetic resistor is made up by using mullite (54%-71.2%), clay (11.8%-29.9%), talcum (6%-16%) and carbon (0.1%-11%) as raw material through the processes of grinding monomer material, blending, mixing all materials and grinding, wetting and kneading, forming, firing under the condition of protective atmosphere, making electrode, glazing, thermal ageing, measuring resistance and assembling to obtain finished product. It features small induction and resisting high voltage and heavy current, etc..
Description
The present invention relates to novel electrical material, especially resistance.
Resistive element is the key device in the electrical material, and use amount is very big, and existing traditional wire-wound resistor is to enclose into screw-type around being attached on the alumina ceramic tube with valuable nickel chromium triangle wire one circle, and it exists following shortcoming:
1, consumes metal materials such as national rare nickel, chromium in a large number.
2, because himself number of turn is many, so inductance is very big.Even adopt two-wire around demagnetization, facts have proved that inductance is still very big.
3, easy scaling loss when rush of current is excessive.
4, when overtension, turn-to-turn very easily discharges apart from little.
5, big resistance, powerful resistance manufacture difficulty are too big.
And along with the fast development of electron electric power industry, also more and more higher to the performance requirement of various electronics kits.In recent years; in the protection of medium-high frequency electron electric power equipment, energy-saving and frequency-variable equipment and thyristor, all must use the noninductive resistance element, traditional wire-wound resistor is owing to exist shortcoming recited above; not only can not on these several industries, use, also restrict the electron electric power industrial expansion.
Purpose of the present invention promptly provides little, the anti-big voltage of a kind of inductance and big electric current, with synthetic resistance of non-metal inorganic material and the method for producing this resistance.
For realizing this purpose, technical scheme of the present invention is as follows: a kind of high-power noninductive synthesized resistor is characterized in that: it is made by following raw materials according:
Mullite (3Al
2O
32SiO
2) 54%～71.2%
Clay (68%SiO
2+ 22%Al
2O
3) 11.8%～29.9%
Talcum (32%MgO) 6%～16%
Carbon 0.1%～11%
Each raw material components sum is 100%.
The process of the described high-power noninductive synthesized resistor of a kind of production claim 1, it is characterized in that: at first respectively mullite, clay, talcum, four kinds of starting monomers of carbon are ground, prepare burden in proportion according to demand then, carry out mix grinding after the batching, grinding rate＜3% (10000-hole sieve), through 24 hours humidification bundle material aftershapings, pressure was 500～3000kg/cm after the moulding again
2, divide kiln roasting at 1350 ℃ ± 50 ℃ protection gas after the moulding, the back of coming out of the stove is at product both ends of the surface system electrode, and through glazing, 300 ℃ of heat ageings of 24 hours, measuring resistance is assembled out finished product at last more again.
After adopting technique scheme, the present invention can reach following useful effect:
1, owing to structural advantage, resistance of the present invention can be undertaken by the requirement of user's working voltage in design, is easy to adjust arcing distance between resistance the two poles of the earth, so withstand voltage properties is good.
2, resistance material of the present invention is owing to be mineral material, and thermal capacitance easily is more than 10 times of metal, so rise
2, resistance material of the present invention is owing to be mineral material, and thermal capacitance easily is more than 10 times of metal, so it is low to heat up, and the cold and hot performance of material is good, is difficult for bursting, and can anti-600 ℃ of rapid heat cycles impact not burst through test, because of being the body conduction, the conduction current cross section is big again, and anti-high current surge withstanding capability is good.
3, because resistance of the present invention is to adopt non-magnetic raw mineral materials, structurally do not have the circle circle on material, so inductance is minimum, the minimum inductance amount can reach " receive grade ", i.e. 3 * 10H/cm in addition.In addition, through actual measurement, temperature coefficient of resistance of the present invention is: (3～-4) * 10
-4℃.
The present invention will be described in detail below in conjunction with accompanying drawing.
Fig. 1～Fig. 6 is 6 kinds of structure charts of the present invention, and blacking partly is made electrode part among the figure.
High-power noninductive synthesized resistor of the present invention, its prescription are mullite (3Al2O·2SiO
2): 54 %～71.2%, clay (68%SiO2+22％Al
2O
3): 11.8%～29.9, talcum (32% MgO): 6%-16%, adding an amount of carbon (0.1%～11%) is conductive paste material again, batch mixing is by height Molded and divide high temperature sintering to form through protection gas, and two ends electrode processed.
The operation principle of this resistance is that (all raw mineral materials in the prescription namely do not come with the insulation phase with conductive phase carbon Stone, clay, talcum) mix after, through strict processing technology, it is numerous also intensive that interiors of products is formed The connection circuit, by the quantity of increase and decrease conductive phase, thereby the quantity of adjusting the internal parallel circuit is determined this resistance The resistance size of product.
High-power noninductive synthesized resistor product of the present invention can be according to user's requirement, according to the difformity product Unit are power load coefficient, manufacture and design various shapes, resistance, the different product of power, such as circle Pie, tubular, template, U-shaped etc.
The process of producing high-power noninductive synthesized resistor of the present invention is: at first respectively mullite, clay, talcum, four kinds of starting monomers of carbon are ground, prepare burden in proportion according to demand then, carry out mix grinding after the batching, grinding rate＜3% (10000-hole sieve), through 24 hours humidification bundle material aftershapings, pressure was 500～3000kg/cm after the moulding again2, divide kiln roasting at 1350 ℃ ± 50 ℃ protection gas after the moulding, it is rear at product to come out of the stove Both ends of the surface electrode processed, through glazing, 300 ℃ of heat ageings of 24 hours, measuring resistance is assembled out at last more again Product.
Resistance of the present invention is on probation through many users, all wins the favorable judgment. As answer Xinping, Shaanxi " 47 " institute of institute Need, produce 400w/4.7 Ω aviation intermediate frequency power supply noninductive resistance, by prescription of the present invention, process Developed the combined resistance of template 100w/18.8 Ω, 4 in parallel uses, respond well.
Lift a specific embodiment below:
Used prescription: mullite 60.5%
Clay 24.5%
Talcum 7.5%
Carbon 7.5%
Make 40 * 45 * 12 board products resistance, every 100w/30 Ω, warp also is unified into
Its used technology is: batch mixing ball milling fineness＜2%, send 70 tons of pressure, i.e. 70000kg/63cm
2=111.1kg/cm
2, product divides kiln roasting at 1350 ℃ of protection gas after 150 ℃ of dryings; come out of the stove the back at the product two ends the aluminium-plated electrode that makes, again through glazing (organic or inorganic coating), then through 300 ℃ of heat ageings; aging back product measuring resistance, and be assembled into 300w/10 Ω product through parallel connection.
Claims (2)
1. high-power noninductive synthesized resistor, it is characterized in that: it is made by following raw materials according:
Mullite (3Al
2O
32SiO
2) 54%～71.2%
Clay (68%SiO
2+ 22%Al
2O
3) 11.8%～29.9%
Talcum (32%MgO) 6%～16%
Carbon 0.1%～11%
Each raw material components sum is 100%.
2. process of producing the described high-power noninductive synthesized resistor of claim 1, it is characterized in that: at first respectively mullite, clay, talcum, four kinds of starting monomers of carbon are ground, prepare burden in proportion according to demand then, carry out mix grinding after the batching, grinding rate＜3% (10000-hole sieve), through 24 hours humidification bundle material aftershapings, pressure was 500～3000kg/cm after the moulding again
2, divide kiln roasting at 1350 ℃ ± 50 ℃ protection gas after the moulding, the back of coming out of the stove is at product both ends of the surface system electrode, and through glazing, 300 ℃ of heat ageings of 24 hours, measuring resistance is assembled out finished product at last more again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99112626 CN1111311C (en) | 1999-01-12 | 1999-01-12 | High-power non-induction synthetic resistance and its production method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99112626 CN1111311C (en) | 1999-01-12 | 1999-01-12 | High-power non-induction synthetic resistance and its production method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1260573A true CN1260573A (en) | 2000-07-19 |
| CN1111311C CN1111311C (en) | 2003-06-11 |
Family
ID=5275913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99112626 Expired - Fee Related CN1111311C (en) | 1999-01-12 | 1999-01-12 | High-power non-induction synthetic resistance and its production method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1111311C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101794648A (en) * | 2010-03-24 | 2010-08-04 | 胡晞 | High-power noninductive synthesized resistor |
| CN106448983A (en) * | 2016-10-31 | 2017-02-22 | 杨德厚 | Preparation method of high power non-inductance synthesized resistor |
| CN110491611A (en) * | 2019-07-24 | 2019-11-22 | 西安西雷脉冲功率研究所有限公司 | A kind of novel high-energy ceramics carbon resistance and preparation method thereof |
| CN114804835A (en) * | 2021-01-28 | 2022-07-29 | 上海上纳电工器材有限公司 | Novel carbon composite ceramic linear resistor and preparation method thereof |
| CN115376769A (en) * | 2022-08-30 | 2022-11-22 | 深圳陶陶科技有限公司 | Carbon composite ceramic resistance card and preparation method and application thereof |
-
1999
- 1999-01-12 CN CN 99112626 patent/CN1111311C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101794648A (en) * | 2010-03-24 | 2010-08-04 | 胡晞 | High-power noninductive synthesized resistor |
| CN106448983A (en) * | 2016-10-31 | 2017-02-22 | 杨德厚 | Preparation method of high power non-inductance synthesized resistor |
| CN110491611A (en) * | 2019-07-24 | 2019-11-22 | 西安西雷脉冲功率研究所有限公司 | A kind of novel high-energy ceramics carbon resistance and preparation method thereof |
| CN114804835A (en) * | 2021-01-28 | 2022-07-29 | 上海上纳电工器材有限公司 | Novel carbon composite ceramic linear resistor and preparation method thereof |
| CN115376769A (en) * | 2022-08-30 | 2022-11-22 | 深圳陶陶科技有限公司 | Carbon composite ceramic resistance card and preparation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1111311C (en) | 2003-06-11 |
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