CN1078039C - Method for making surface electric heating element with modified insulating base material surface - Google Patents
Method for making surface electric heating element with modified insulating base material surface Download PDFInfo
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- CN1078039C CN1078039C CN 98124724 CN98124724A CN1078039C CN 1078039 C CN1078039 C CN 1078039C CN 98124724 CN98124724 CN 98124724 CN 98124724 A CN98124724 A CN 98124724A CN 1078039 C CN1078039 C CN 1078039C
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- electric heating
- base material
- heating element
- surface modification
- modified
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Abstract
The present invention relates to a method for making a surface electric heating element with a modified insulating base material surface, which comprises the following steps: surface modified solution is prepared; a base material is cleaned, purified and dried; the base material is preheated; the surface of the base material is modified; the processes of lowering temperature and aging by heat are carried out; silver pulp is coated, and an electrode is manufactured; the electric aging shaping process of a heat piece is carried out. The method for making a surface electric heating element with a modified insulating base material surface is characterized in that the surface modified solution uses 80 to 94% of tin tetrachloride and 3 to 6% of cadmium dichloride as main materials, bismuth trichloride as a mixed material and boric acid as a semiconductor film for repairing metal oxide, and zirconium tetrachloride is used for enhancing a curie point and heat stability. The surface electric heating element with a modified insulating base material surface has the advantages of wide using temperature area and capability of irradiating far infrared waves which are good for a human body and is suitable for making electric heating health products and various electric heating parts.
Description
(1) technical field
The invention belongs to material composition or material character is the Ohmic resistance heater element of feature, and particularly a kind of metal oxide semiconductor material of doping one deck densification on the insulation resistant substrates forms the manufacture method of the face electric heating element of surface modification.
(2) background technology
In recent years, electrothermal film technology has large development, and the manufacture method of electrothermic film element is to adopt the spray pyrolysis method, promptly is that the film forming solution carrier gas is sprayed in the insulating substrate atmosphere of heating, and film forming solution on insulating substrate, generates Electric radiant Heating Film through the thermal decomposition plating.As Chinese patent " 88100015.9 large power, electrically heat exchange body and treatment technology thereof " promptly is that butter of tin is dissolved in the ethanol, as the basis that forms the tin ash Electric radiant Heating Film, be dissolved in ethanol as reducing agent with trichloride antimony, it is free in the high temperature air, decomposition-reduction is the mixture of tin ash, tin oxide, tin, plating forms the tin ash Electric radiant Heating Film to the insulating substrate surface of purge drying.But, since not enough to the stability screening of metal oxide crystal in high temperature, so the suitable warm area of Electric radiant Heating Film is narrower, performance is stable inadequately, and uniformity in product performance and reliability are difficult to quantize to ensure.
(3) summary of the invention
The objective of the invention is to overcome the deficiency of above-mentioned technology, mechanism according to semiconductor carriers formation, screen suitable element or compound and be made into surface modification solution, by certain technology and equipment, in large quantity the high-temperature insulation substrate surface is modified as suitable wide temperature region, stable performance, energy-efficient face electric heating element.
The manufacture method of the face electric heating element of insulating substrate surface modification of the present invention is: the preparation surface modification solution, and the cleaning dry substrate, preheating carrier gas spray is oozed, surface modification, the cooling heat ageing, brushing silver slurry is made electrode, the aging typing of warmware energising,
The recipe ingredient of described surface modification solution and percentage by weight:
Butter of tin (SnCl
4) 80-94%
Dichloride cadmium (CdCl
22.5H
2O) 3-6%
Nickel Chloride (NiCl
26H
2O) 0-2%
Potassium hydroxide (KOH) 0-2%
Bismuth trichloride (BiCl
3) 0-2% be dopant material
Boric acid (H
3BO
3) 0.1-2% for repairing the metal-oxide semiconductor (MOS) film
Zirconium chloride (ZrCl
4) 0-2% for improving Curie point and thermal stability
Resistance and temperature coefficient are adjusted agent 0.1-6%
Process for preparation is, takes by weighing each component by prescription, adds absolute ethyl alcohol, and stirring and dissolving under the normal temperature obtains light green transparent surface modified solution, leaves in 0-8 ℃ the refrigerator standby;
Described cleaning dry substrate is, for carborundum, glass, ceramic base material, is immersed in the running water, removes greasy dirt, with running water rinsing cleaning, wipes washmarking, places in the drying box in 100-150 ℃ of oven dry; For the micarex base material, wipe dust, placing drying box interior is qualified in 150-200 ℃ of oven dry to sending clear and melodious sound;
Described preheating carrier gas spray is oozed, be with the base material preheating, when being warming up to 500-600 ℃, send into the surface modification chamber of 550-750 ℃ of constant temperature, surface modification solution is quantitatively atomized sprays into the surface modification chamber, carries out chemical reaction under the gas phase, generate in the conducting metal oxide crystal grain infiltration substrate surface lattice and mix, make the insulating substrate surface modification, progressively cooling is aged to below 80 ℃, forms face thermo electric material layer;
Brushing silver slurry, reduction furnace is sent in oven dry again, 300-800 ℃ of following reductase 12s 0-30 minutes, mechanical attachment extraction electrode line;
The warmware energising is aging, and lattice is reset, and is fixed to the face electric heating element.
Advantage of the present invention is: prepared face electric heating element is 480 ℃ of following flames of angers, and bold and vigorous upward acid, aqueous slkali do not corrode, and spill cold water and do not burst; The good electrode area of insulation protection is directly put into the water heating and is not damaged; Use wide temperature region, from subzero temperature to 800 ℃ of positive temperature; Life-span is long, switches on 7000 hours continuously down at 500-550 ℃, and power is slightly decayed; The energy radiation is to human body beneficial's far infrared wave.Compared with prior art, need not under the ultra-clean condition, to clean base material magnetron sputtering or vacuum evaporation; Form the different element compound of energy gap that mechanism and the stable order of metal oxide crystal in high temperature are screened according to charge carrier, conductive heating layer after the surface modification all can produce the charge carrier that adapts with it under different temperatures, thereby widen and improved the suitable warm area of electric heating element, strengthened the stability that use the high-temperature region; Detect through country infrared product quality inspection center, under different temperatures, all can launch human body beneficial's wavelength infrared waves at 2.5-13.5 microns.Be applicable to and make the far-infrared electric health treatment, or make electric heating unit, devices such as electric ehated glass vessel, ceramic electrical heating tube, carborundum electric boiling plate, mica electric boiling plate.
(4) embodiment
Get the recipe ingredient and the percentage by weight of surface modification solution:
Butter of tin (SnCl
4) 85-91%
Dichloride cadmium (CdCl
22.5H
2O) 4-6%
Nickel Chloride (NiCl
26H
2O) 0.1-1.0%
Potassium hydroxide (KOH) 0.5-1.5%
Bismuth trichloride (BiCl
3) 0.1-0.5% be dopant material
Boric acid (H
3BO
3) 0.5-1.5% for repairing the metal-oxide semiconductor (MOS) film
Zirconium chloride (ZrCl
4) 0.1-0.5% for improving Curie point and thermal stability
Resistance and temperature coefficient are adjusted agent 1-4%
Preparation steps is, takes by weighing each component by prescription, adds absolute ethyl alcohol, and stirring and dissolving under the normal temperature obtains light green transparent surface modified solution, leaves in 0-8 ℃ the refrigerator;
The cleaning dry substrate is, for carborundum, glass, ceramic base material, is immersed in the running water, removes greasy dirt, and washmarking is wiped in the rinsing cleaning, places in the drying box in 100-150 ℃ of oven dry; For the micarex base material, wipe dust, placing drying box interior is qualified in 150-200 ℃ of oven dry to sending clear and melodious sound;
Preheating carrier gas spray infiltration method is; Adopt the continuous production kiln of full automatic production equipment, the kiln warm area is divided into the preheating section of heating, the surface modification chamber, and cooling heat ageing section transmits base material by the track push pedal, by automatic spraying system carrier gas sprayed solution.Idiographic flow is, to purify, dry high-temperature insulation base material, load onto the instrument folder, be seated in the outside track push pedal of automatic producing device, the kiln preheating section of heating is sent in hydraulic drive, when being warming up to 500-600 ℃, workpiece enters the surface modification chamber of constant temperature, 4 of both sides, surface modification chamber are sprayed window and open automatically, according to the negative pressure ejector principle, by there not being oil, water, the compressed air of impurity forms negative pressure in the muzzle ejection, and the quantitative atomizing of surface modification solution that drives in the rifle jar sprays into the surface modification chamber, carries out chemical reaction under gas phase, be incubated 10-15 minutes, the conducting metal oxide crystal grain that generated infiltrates in the matrix surface lattice and mixes, and makes the insulating body surface modification, obtain transparent or light gray to dark-grey face electric heating element; Not equality of temperature lattice ordering after the match program is finished in cooling step by step in the cooling heat ageing section of automatic producing device, and when waiting to drop to below 80 ℃, workpiece runs on the outside track, unloads clamping apparatus, by resistance size and the classification of uniformity initial survey;
The brushing silver slurry system utmost point: with the workpiece of initial survey classification,,, concentrate and send into reduction furnace, in 300-800 ℃ of following reductase 12s 0-30 minutes in 100-200 ℃ down after the oven dry by instructions for use brushing silver slurry; Use the mechanical connection manner extracting power supply cord;
The energising burin-in process: will make the warmware of electrode, and be installed on the agingtable, it is aging to switch on according to the instructions for use stepping, 220V voltage stepping 50V, 100V, 150V, 200V, 240V; 380V voltage stepping 100V, 200V, 300V, 400V; Every grade of ageing time is decided on serviceability temperature, 100-150 ℃ of uses, and every grade was worn out 5-10 minutes; 150-300 ℃ of uses, every grade was worn out 10-15 minutes; 300-450 ℃ of uses, every grade was worn out 15-20 minutes; Use more than 450 ℃, every grade was worn out 20-30 minutes, reset in order in order to lattice.After overheated, electricity wear out, just obtain the comparatively stable surface modification face electric heating element of performance.
Claims (3)
1, a kind of manufacture method of face electric heating element of insulating substrate surface modification, its technical process comprises: preparation surface modification solution, cleaning dry substrate, preheating carrier gas spray is oozed, surface modification, cooling heat ageing, brushing silver slurry is made electrode, and the aging typing of warmware energising is characterized in that:
The component of described surface modification solution and percentage by weight are:
Butter of tin (SnCl
4) 85～91%
Dichloride cadmium (CdCl
22.5H
2O) 4～6%
Nickel Chloride (NiCl
26H
2O) 0.1～1.0%
Potassium hydroxide (KOH) 0.5～1.5%
Bismuth trichloride (BiCl
3) 0.1～0.5% be dopant material
Boric acid (H
3BO
3) 0.5～1.5% repairing metal-oxide semiconductor (MOS) film
Zirconium chloride (ZrCl
4) 0.1～0.5% raising Curie point and thermal stability
Resistance and temperature coefficient are adjusted agent 1～4%
Process for preparation is, takes by weighing each component by prescription, adds absolute ethyl alcohol, and stirring and dissolving under the normal temperature obtains light green transparent surface modified solution, leaves in 0～8 ℃ the refrigerator standby.
2, the manufacture method of the face electric heating element of insulating substrate surface modification as claimed in claim 1 is characterized in that, described cleaning dry substrate is that the greasy dirt on the removal base material is cleaned cleaning with running water, places in the drying box in 100～150 ℃ of oven dry.
3, the manufacture method of the face electric heating element of insulating substrate surface modification as claimed in claim 1, it is characterized in that, described preheating carrier gas spray is oozed, be with the base material preheating, be warming up to 500～600 ℃, send into thermostatic chamber, the quantitative atomizing of surface modification solution is sprayed into, under gas phase, carry out chemical reaction, conducting metal oxide crystal grain is infiltrated in the substrate surface lattice mix, make the insulating substrate surface modification, progressively be cooled to below 80 ℃, form face thermo electric material layer, the system utmost point, the stepping energising is aging, is fixed to the face electric heating element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98124724 CN1078039C (en) | 1998-11-12 | 1998-11-12 | Method for making surface electric heating element with modified insulating base material surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98124724 CN1078039C (en) | 1998-11-12 | 1998-11-12 | Method for making surface electric heating element with modified insulating base material surface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1220570A CN1220570A (en) | 1999-06-23 |
| CN1078039C true CN1078039C (en) | 2002-01-16 |
Family
ID=5228776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98124724 Expired - Fee Related CN1078039C (en) | 1998-11-12 | 1998-11-12 | Method for making surface electric heating element with modified insulating base material surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1078039C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101639242B (en) * | 2009-08-26 | 2012-04-04 | 李吉瑞 | Electric heating superconductive radiator |
| CN102843793B (en) * | 2011-06-24 | 2015-05-20 | 北京万众光通科技发展有限公司 | Electrothermal conversion body coating formula and application method |
| CN102946652A (en) * | 2012-10-31 | 2013-02-27 | 宁波市万泓电器科技有限公司 | Heating pipe with heating film and manufacturing process thereof |
| CN104091882A (en) * | 2014-07-03 | 2014-10-08 | 陈国栋 | Double-layer high-radiation electrothermal film structure and manufacturing method |
| CN107682944B (en) * | 2017-10-24 | 2020-09-08 | 张东升 | Semiconductor electrothermal film and preparation method thereof |
-
1998
- 1998-11-12 CN CN 98124724 patent/CN1078039C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1220570A (en) | 1999-06-23 |
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Owner name: MA XIUZHI; LIU SHAOLIANG Free format text: FORMER OWNER: MA XIUZHI; LIU SHAOLIANG; GONG XU Effective date: 20030829 |
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Inventor after: Ma Xiuzhi Inventor after: Liu Shaoliang Inventor before: Ma Xiuzhi Inventor before: Liu Shaoliang Inventor before: Gong Xu |
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Address after: Bayuquan District Xiongyue Town dawn village in Liaoning province Yingkou City Yucai District No. 2 1-4-2 Patentee after: Jiang Jiafu Address before: Bayuquan District Xiongyue Town dawn village in Liaoning Province, Yingkou City Patentee before: Jiang Jiafu |
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Effective date of registration: 20120604 Address after: Bayuquan District of Liaoning Province dawn Xiongyue Town Village 115007 Yingkou Yucai District No. 2 1-4-2 Co-patentee after: Dong Yunfeng Patentee after: Jiang Jiafu Address before: Bayuquan District of Liaoning Province dawn Xiongyue Town Village 115007 Yingkou Yucai District No. 2 1-4-2 Patentee before: Jiang Jiafu |
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