CN102254651A - Preparation method of heat-conducting insulating material for resistance wire heating disc - Google Patents
Preparation method of heat-conducting insulating material for resistance wire heating disc Download PDFInfo
- Publication number
- CN102254651A CN102254651A CN201110098684XA CN201110098684A CN102254651A CN 102254651 A CN102254651 A CN 102254651A CN 201110098684X A CN201110098684X A CN 201110098684XA CN 201110098684 A CN201110098684 A CN 201110098684A CN 102254651 A CN102254651 A CN 102254651A
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- Prior art keywords
- heat
- powder
- percent
- resistance wire
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- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 238000010438 heat treatment Methods 0.000 title abstract description 4
- 239000011810 insulating material Substances 0.000 title abstract description 4
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 45
- 239000000843 powder Substances 0.000 claims abstract description 34
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 24
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052863 mullite Inorganic materials 0.000 claims abstract description 8
- 229910052596 spinel Inorganic materials 0.000 claims abstract description 6
- 239000011029 spinel Substances 0.000 claims abstract description 6
- 239000003822 epoxy resin Substances 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims abstract description 4
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 4
- 239000012774 insulation material Substances 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 abstract 3
- 239000002245 particle Substances 0.000 abstract 2
- 238000001035 drying Methods 0.000 abstract 1
- 230000006698 induction Effects 0.000 abstract 1
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
Landscapes
- Resistance Heating (AREA)
Abstract
The invention discloses a preparation method of a heat-conducting insulating material for a resistance wire heating disc. The method comprises the following steps of: crushing electrically fused magnesium oxide with the purity of not less than 95 percent into magnesium oxide powder with different particle sizes of 50 to 60 meshes, 60 to 80 meshes, 80 to 140 meshes, 140 to 200 meshes, 200 to 325 meshes and 200 to 320 meshes; mixing the magnesium oxide powder with the different particle sizes according to weight ratios of 25 percent, 20 percent, 25 percent, 15 percent, 10 percent and 5 percent sequentially; deironing, drying and adding 2 to 4 percent of mullite powder or spinel powder; and finally, adding 5 to 10 percent of epoxy resin. The heat-conducting insulating material prepared by the method is made into the resistance wire heating disc, and has low induction voltage and leakage current and high using safety.
Description
Technical field
The present invention relates to electrical insulating material, be specially the preparation method of a kind of resistance wire heat-generating disc with heat-conducting insulation material.
Background technology
Owing to can produce harmful radiation during electromagnetic oven, microwave oven use, gas burner exists and leaks hidden danger, and that the resistance wire heat-generating disc has is safe in utilization, neatly, quick heating, temperature height, advantage such as cost performance is outstanding makes it be widely used in kitchen cooker and industrial compact heat source.
The resistance wire heat-generating disc is to place the rated resistance silk in metal dish, around resistance wire, fill, coat with heat-conducting insulation material, by exert pressure, moulding, solidify through high temperature sintering again and make.The heat-conducting insulation material that present heat-generating disc uses is silica and talcum powder.The shortcoming of the heat-generating disc ubiquity induced voltage height of manufacturing with this class material (more than the 110V), leakage current big (more than the 0.3mA), safety in utilization difference is hung back many users.
Summary of the invention
The objective of the invention is provides the preparation method of a kind of resistance wire heat-generating disc with heat-conducting insulation material at the shortcoming of above-mentioned prior art.Heat-conducting insulation material with this method preparation is manufactured the resistance wire heat-generating disc, can reduce the induced voltage and the leakage current of heat-generating disc, improves its safety in utilization.
The resistance wire heat-generating disc provided by the invention preparation method of heat-conducting insulation material may further comprise the steps:
(1) purity is not less than 95% electrically molten magnesia and pulverizes, sieve into 50-60 order, 60-80 order, 80-140 order, 140-200 order, 200-325 order and the varigrained magnesia powder of-320 orders;
(2) varigrained magnesia powder of (1) step is taken by weighing by 25%, 20%, 25%, 15%, 10% and 5% weight ratio successively, mix;
(3) magnesia powder with (2) step carries out deironing;
(4) magnesia powder after (3) step deironing was dried by the fire 45 minutes under 300 ℃ of temperature;
(5) add mullite powder or spinel powder in the magnesia powder after the oven dry of (4) step, the granularity of mullite powder and spinel powder is the 100-200 order, and addition is the 2-4% of magnesia powder weight, and mixing;
(6) add epoxy resin in (5) material in step, addition is the 5-10% of weight of material, and mixing is resistance wire heat-generating disc heat-conducting insulation material.
The resistance wire heat-generating disc that uses heat-conducting insulation material of the present invention to manufacture has the following advantages:
1, intensity height freely falls from the 70cm eminence, and is whole excellent, do not have cracking;
2, induced electricity forces down, and below 80V, existing resistance wire heat-generating disc reduces nearly 30%;
3, leakage current is little, below 0.1mA, less than 1/3rd of existing resistance wire heat-generating disc;
4, room temperature resistance infinity, compressive resistance 〉=2500V,
5, safe and reliable.
Embodiment
Embodiment 1
Prepare resistance wire heat-generating disc heat-conducting insulation material according to the following steps:
(1) getting purity is that 95% electrically molten magnesia is pulverized, and sieves into 50-60 order, 60-80 order, 80-140 order, 140-200 order, 200-325 order and the varigrained magnesia powder of-320 orders;
(2) above-mentioned varigrained magnesia powder is taken by weighing by 25%, 20%, 25%, 15%, 10% and 5% weight ratio successively, mix;
(3) utilize the above dry-type magnetic extractor of magnetic field intensity 18000GS that the magnesia powder in (2) step is carried out deironing;
(4) magnesia powder after the deironing was dried by the fire 45 minutes under 300 ℃ of temperature, remove wherein moisture and fugitive constituent;
(5) add the mullite powder in the magnesia powder after oven dry, mullite powder degree is 150 orders, and addition is 3% of a magnesia powder weight, mixing;
(6) add epoxy resin in the material in (5) step, addition is 7% of a weight of material, and mixing makes resistance wire heat-generating disc heat-conducting insulation material of the present invention.
Add solvent toluene in above-mentioned heat-conducting insulation material, addition is 5% of a weight of material, is filled at twice behind the mixing in the heat-generating disc, and resistance wire is coated, and through exerting pressure, moulding is solidified through 400 ℃ of high temperature sinterings again, promptly can be made into the resistance wire heat-generating disc.
After testing, the induced voltage of this heat-generating disc is 75V; Leakage current is 0.08mA.
Embodiment 2
(1), (2), (3), (4), (6) step be identical with embodiment 1, only changes additive mullite powder into spinel powder in (5) step, and be surplus all identical.
The resistance wire heat-generating disc that utilizes this heat-conducting insulation material to manufacture, after testing, its induced voltage is 78V; Leakage current is 0.05mA.
Claims (1)
1. a resistance wire heat-generating disc is characterized in that this method may further comprise the steps with the preparation method of heat-conducting insulation material:
(1) purity is not less than 95% electrically molten magnesia and pulverizes, sieve into 50-60 order, 60-80 order, 80-140 order, 140-200 order, 200-325 order and the varigrained magnesia powder of-320 orders;
(2) varigrained magnesia powder of (1) step is taken by weighing by 25%, 20%, 25%, 15%, 10% and 5% weight ratio successively, mix;
(3) magnesia powder with (2) step carries out deironing;
(4) magnesia powder after (3) step deironing was dried by the fire 45 minutes under 300 ℃ of temperature;
(5) add mullite powder or spinel powder in the magnesia powder after the oven dry of (4) step, the granularity of mullite powder and spinel powder is the 100-200 order, and addition is the 2-4% of magnesia powder weight, and mixing;
(6) add epoxy resin in (5) material in step, addition is the 5-10% of weight of material, and mixing is resistance wire heat-generating disc heat-conducting insulation material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110098684XA CN102254651B (en) | 2011-04-20 | 2011-04-20 | Preparation method of heat-conducting insulating material for resistance wire heating disc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110098684XA CN102254651B (en) | 2011-04-20 | 2011-04-20 | Preparation method of heat-conducting insulating material for resistance wire heating disc |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102254651A true CN102254651A (en) | 2011-11-23 |
| CN102254651B CN102254651B (en) | 2013-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110098684XA Active CN102254651B (en) | 2011-04-20 | 2011-04-20 | Preparation method of heat-conducting insulating material for resistance wire heating disc |
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| CN (1) | CN102254651B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105566950A (en) * | 2015-12-07 | 2016-05-11 | 上海实业振泰化工有限公司 | Preparation method of highly-voltage-withstanding high-temperature-resistant fused magnesium oxide |
| CN106967309A (en) * | 2017-02-24 | 2017-07-21 | 上海实业振泰化工有限公司 | A kind of production method of the water aluminum pipe with electrician's level magnesia powder of stewing |
| CN108811203A (en) * | 2018-01-05 | 2018-11-13 | 上海实业振泰化工有限公司 | A kind of fused magnesium oxide |
| CN109456737A (en) * | 2018-11-12 | 2019-03-12 | 天津航空机电有限公司 | A kind of heat filling for temperature sensor, the temperature sensor comprising it and purposes |
| CN110012565A (en) * | 2018-01-05 | 2019-07-12 | 上海实业振泰化工有限公司 | A kind of production method of copper pipe powder |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1839182A (en) * | 2003-10-03 | 2006-09-27 | 达泰豪化学工业株式会社 | Spherical coated magnesium oxide powder and method for production thereof, and resin composition comprising the powder |
| CN101005719A (en) * | 2006-01-17 | 2007-07-25 | 宁波市塞纳电热电器有限公司 | Metal base printed circuit heater and its preparing technology |
| CN201200288Y (en) * | 2008-05-27 | 2009-03-04 | 广东浩特电器有限公司 | Energy-saving type electromagnetic electric rice pot |
| CN101466177A (en) * | 2008-12-03 | 2009-06-24 | 江山热威金属制造有限公司 | Moisture proofing method for electric heating tube oxidation magnesite powder |
| CN101500349A (en) * | 2009-01-14 | 2009-08-05 | 镇江天信电器有限公司 | Metal electric heating tube |
-
2011
- 2011-04-20 CN CN201110098684XA patent/CN102254651B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1839182A (en) * | 2003-10-03 | 2006-09-27 | 达泰豪化学工业株式会社 | Spherical coated magnesium oxide powder and method for production thereof, and resin composition comprising the powder |
| CN101005719A (en) * | 2006-01-17 | 2007-07-25 | 宁波市塞纳电热电器有限公司 | Metal base printed circuit heater and its preparing technology |
| CN201200288Y (en) * | 2008-05-27 | 2009-03-04 | 广东浩特电器有限公司 | Energy-saving type electromagnetic electric rice pot |
| CN101466177A (en) * | 2008-12-03 | 2009-06-24 | 江山热威金属制造有限公司 | Moisture proofing method for electric heating tube oxidation magnesite powder |
| CN101500349A (en) * | 2009-01-14 | 2009-08-05 | 镇江天信电器有限公司 | Metal electric heating tube |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105566950A (en) * | 2015-12-07 | 2016-05-11 | 上海实业振泰化工有限公司 | Preparation method of highly-voltage-withstanding high-temperature-resistant fused magnesium oxide |
| CN106967309A (en) * | 2017-02-24 | 2017-07-21 | 上海实业振泰化工有限公司 | A kind of production method of the water aluminum pipe with electrician's level magnesia powder of stewing |
| CN108811203A (en) * | 2018-01-05 | 2018-11-13 | 上海实业振泰化工有限公司 | A kind of fused magnesium oxide |
| CN110012565A (en) * | 2018-01-05 | 2019-07-12 | 上海实业振泰化工有限公司 | A kind of production method of copper pipe powder |
| CN109456737A (en) * | 2018-11-12 | 2019-03-12 | 天津航空机电有限公司 | A kind of heat filling for temperature sensor, the temperature sensor comprising it and purposes |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102254651B (en) | 2013-12-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: DASHIQIAO MEIR MAGNESIUM PRODUCTS CO., LTD. Free format text: FORMER OWNER: JING WEI Effective date: 20120926 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20120926 Address after: 115100 Liaoning city of Dashiqiao province Shuangtaizi village Guan Tun Zhen Dashiqiao meire Magnesium Products Co. Ltd. Applicant after: Dashiqiao Meir Magnesium Products Co., Ltd. Address before: 115100, Dashiqiao, Liaoning Province town of Shuangtaizi village Dashiqiao beauty and magnesium products Co., Ltd. Applicant before: Jing Wei |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |