CN1092396A - The method of electric ceramic sintered metal - Google Patents
The method of electric ceramic sintered metal Download PDFInfo
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- CN1092396A CN1092396A CN 93121196 CN93121196A CN1092396A CN 1092396 A CN1092396 A CN 1092396A CN 93121196 CN93121196 CN 93121196 CN 93121196 A CN93121196 A CN 93121196A CN 1092396 A CN1092396 A CN 1092396A
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Abstract
A kind of method of homemade electric ceramic sintered metal, with the content of titanium greater than 8% alloy, or with indispensable oxide compound, SiO
20.1～75%, CaO0.1～55%, AL
2O
30.1～48%, Na
2O0.1～20%, K
2The mixture of O0.1～20% is distributed in around the electroceramics, after insulator and metal-ware are fixing, put into High Temperature Furnaces Heating Apparatus, vacuum tightness is warming up to the complete fusion of titanium alloy or oxide mixture, promptly 400 to 1200 degrees centigrade gradually less than 6 pascals (can not vacuumizing with oxidesintering) in the stove, be incubated 2 to 120 minutes, naturally cooling, metal-ware and electroceramics just combine good seal performance securely, can prevent product seepage oil, in tensile test, not rupture.
Description
The present invention relates to the insulation thimble of electric insulator or insulating bodies, particularly power equipment.
China is the country that produces pottery in the world the earliest, the production history in existing thousands of years.Yet the high voltage porcelain of China (hereinafter to be referred as electroceramics) is just to begin modern age to produce.The sintering technology of it and metal be this century the fifties from external introducing, use till today always, its sintering method is:
1. according to the form below is prepared silver paste
Formulation weight (%)
Composition title 1
#
Silver paste 2
#
Silver paste
Silver suboxide 62.1 65.6
Bismuth oxide-1.06
Lead borate-1.06
Rosin coats with lacquer 31.1 25.55
Turps 2.2 4.13
Viscotrol C 2.4 2.6
Fritted glaze 2.2-
1
#Silver paste coating the first layer, 2
#The silver paste coating second layer and the 3rd layer.
2 at the ceramics sintering position, is coated with to apply silver paste agglutinant.
3 roastings are put the electroceramics that has applied silver paste into the High Temperature Furnaces Heating Apparatus roasting, and maturing temperature is 800-880 ℃, the coating once, roasting once, repeated calcination 2-3 time.
Behind the 4 electroceramics roasting silver paste, ward off silver cadmium flux.
5 are welded in metal-ware on the silver layer of electroceramics with soldering.
Because it is 1200 ℃ that electroceramics begins the remollescent temperature, under silver-colored melting temperatur, any variation does not take place in electroceramics.And the silver layer of molten state accumulates in the electroceramics surface, and wherein part silver spreads to the electroceramics hole.After the cooling, the silver layer on electroceramics surface and the silver in the hole are frozen into a slice, but cohesive strength is low.With 68.7 * 10
5Pa just can tear silver from the electroceramics surface.
The thermal expansivity of electroceramics is much smaller than silver.After roasting was finished, temperature dropped to room temperature from silver-colored melting temperatur.Silver layer is shrunk to earlier solid-state by liquid state, and then is shrunk to the volume under the normal temperature, and that electroceramics is in all the time is solid-state, and volumetric shrinkage is very little.In metal layer, form bigger internal stress.Infilter the silver in electroceramics hole because volumetric shrinkage can only occupy segment space, rest part forms the space.Along with operating temperature changes, the slit constantly enlarges causes seepage.
The objective of the invention is to provide that a kind of bonding strength is big, the homemade electroceramics and the metal sintering method of good seal performance to the public.
Mechanism of the present invention is: the glass that utilizes thermal expansivity titanium alloy close with homemade electroceramics or oxide compound to be melt at high temperature permeates to electroceramics, with component generation physics or the chemical transformation in the electroceramics, and the infiltration metallic surface, electroceramics and melts combine are firm like this, good airproof performance.
The present invention is such realization:
With the weight percentage of titanium greater than 8% alloy (titanium silver, titanium nickel, CTB alloy), or with the oxide compound of indispensability, by weight percentage: silicon-dioxide (Sio
2) 0.1～75%, calcium oxide (Cao) 0.1～55%, aluminium sesquioxide (Al
2o
3) 0.1～48%, sodium oxide (Na
2O) 0.1～20%, potassium oxide (K
2O) 0.1～20% and reduce the oxide compound of processing condition, zinc oxide (Zno) 0～78%, Vanadium Pentoxide in FLAKES (P
2O
5) 0～75%, barium oxide (Bao) 0～55%, plumbous oxide (Pbo) 0～30%, magnesium oxide (Mgo) 0～20%, cobalt oxide (COO) 0～1%, boron oxide (B
2o
3) 0～15%, arsenic oxide arsenoxide (AS
2o
3) 0～1% mix powder is distributed in the sintering position of electroceramics.
2. ready metal-ware and electroceramics are fixed.In the slit of metal-ware and electroceramics, fill up greater than 1% alloy or with above-mentioned oxide compound mixing material with the weight percent silver content.
3. the subassembly that assembles is put into High Temperature Furnaces Heating Apparatus, vacuum tightness is not less than 6 pascals (can vacuumizing with oxidesintering) in the stove, and to be warming up to the thorough fusion of agglomerated material gradually be 400～1200 ℃ and be incubated 2～120 minutes.
4. cooling naturally.
Advantage of the present invention
For many years, adopt traditional technology, bonding strength is low between insulator and the metal-ware, the interior slit of sealing layer is many, and product oozes the oil spill rate height.Northeast electrical network only in the period of 1980～1991 according to statistics accounts for full electric network and damages 41.4% of electrical condenser sum because seepage oil causes electrical condenser to damage.
Agglomerant artistic skill of the present invention combines insulator and metal-ware securely, good airproof performance, non-leakage oil.Measuring the insulator subassembly of producing by traditional technology through Machinery Ministry power capacitor product inspection center lasts 1 minute and a small amount of seepage will occur under 2.5 normal atmosphere, and press the inventive method agglomerating insulator subassembly under 5 normal atmosphere, last 2 minutes and also do not have any seepage.In the pulling force rupture test, all sample all originally is in fracture at insulator, and sintered layer does not have any damage.The present invention will bring enormous benefits to society.
Embodiment 1: capacitor casing is cleaned, dried.Get Ti-Ni alloy powder (titaniferous amount account for alloy 28.5%) 2 grams,, be applied to the regulation position of insulator, seasoning 30 minutes with guncotton solution furnishing paste.With insulator and the metal-ware assembling of having plated nickel.In the slit of metal-ware and insulator, put into the yellow gold silk of 150 grams, 4 millimeters of diameters, put into vacuum oven, be evacuated to 6 * 10 in the stove
-2Pascal.In 60 minutes, be warming up to 1000 ℃, be incubated 5 minutes, naturally cooling.
Embodiment 2: get titanium foil, nickel foil (paper tinsel thick 1～2 * 10
-2Millimeter) each 1, its width all should be consistent with the specified part bit width of insulator, with spot welding or mechanical fixation, both is superimposed together.Regulation position at insulator is wrapped with a circle, itself and metal-ware is assembled again.In the slit of metal-ware of having plated copper and insulator, put into 150 gram Kufil spun golds.Put into vacuum oven, be evacuated to less than 6 * 10
-2Pascal was warming up to 1000 ℃ in 60 minutes, be incubated 3 minutes, naturally cooling.
Embodiment 3: getting thick is 1.5 * 10
-2Millimeter, one on the width titanium band consistent with insulator specified part bit width, with acid electroplating to its two sides nickel plating (coating thick 8 * 10
-3Millimeter).Tightly be wrapped with a circle at insulator regulation position, whole band applied 196 * 10 with assembling jig
4Pascal's pressure makes it be close to the porcelain surface.Put into vacuum oven, be evacuated to less than 6 * 10
-2Pascal was warmed up to 1000 ℃ in 60 minutes, be incubated 5 minutes, lowered the temperature naturally, above with soldering metal parts being welded in.
Embodiment 4: coating titanium valve at insulator regulation position, is 2 * 10 with thickness again
-2Millimeter, the Copper Foil that width is identical with titanium brushing position tightly is wrapped with a circle.Use assembling jig, whole band is applied 196 * 10
4Pascal's pressure makes it be close to the porcelain surface.Put into vacuum oven, be evacuated to less than 6 * 10
-2Pascal was warmed up to 1000 ℃ in 60 minutes, be incubated 2 minutes, naturally cooling.Above with soldering metal-ware being welded in.
Embodiment 5: cut-off directly is that 0.38 millimeter titanium core silver-bearing copper silk (the titaniferous amount is 12%) tightly is entangled in insulator regulation position, itself and metal-ware is assembled again, and puts into vacuum oven, is evacuated to less than 6 * 10
-2Pascal.In 60 minutes, be warming up to 960 ℃, be incubated 3 minutes, naturally cooling.
Embodiment 6: insulator is cleaned, dried.CTB alloy powder 2 grams (titaniferous amount 75%) with guncotton solution furnishing paste, are applied to the regulation position of insulator, seasoning 30 minutes.With insulator and the metal-ware assembling of having plated nickel.In the slit of metal-ware and insulator, put into 150 grams, diameter is 4 millimeters an argentalium alloy silk, puts into vacuum oven.Be evacuated to less than 6 * 10 in the stove
-2Pascal.In 90 minutes, be warming up to 800 ℃, be incubated 15 minutes, naturally cooling.
Embodiment 7: with titanium valve and yellow gold powder, be mixed with the powder mix of titaniferous amount 8%, be coated on insulator regulation position, assemble with metal-ware.In the slit of metal-ware and insulator, put into a small amount of above-mentioned powder mix.Assembly is put into vacuum oven, be evacuated to less than 6 * 10
-2Pascal was warmed up to 960 ℃ in 60 minutes, be incubated 3 minutes, naturally cooling.
Embodiment 8: the regulation position at insulator is coated with the last layer titanium hydride powder, again with metal-ware and its assembling.In the slit of metal-ware and insulator, put into the filamentary silver in 1 millimeter in true footpath.The filamentary silver amount is 85 with the ratio that is coated onto the titanium hydride powder weight on the insulator: it is better that 15(adds 0.1 gram manganese powder effect again) put into vacuum oven, be evacuated to less than 6 * 10
-2Pascal.In 60 minutes, be warmed up to 1050 ℃, be incubated 5 minutes, naturally cooling.
Embodiment 9: will or make glass powder by the oxide powder uniform mixing of following prescription, and with polyethylene furnishing pasty state, be coated in the regulation position (or making the regulation position that glass ring is enclosed within insulator) of insulator.SiO
21.2%，Zno77.5%，Pbo15.5%，B
2O
35.4%Al
2O
30.1%、Na
2O0.1%、K
2o0.1%、Cao0.1%。With the metal-ware assembling, in 60 minutes, be warming up to 500 ℃, be incubated 60 minutes, naturally cooling.
Claims (1)
1, a kind of method of homemade electric ceramic sintered metal is characterized in that, with the weight percentage of titanium greater than 8% alloy or with the oxide compound of indispensability by weight percentage: silicon-dioxide SiO
20.1～75%, calcium oxide CaO0.1～55%, aluminium sesquioxide Al
2O
30.1～48%, sodium oxide Na
2O0.1～20%, potassium oxide K
2O0.1～20% and can reduce zinc oxide ZnO0～78% of processing condition, Vanadium Pentoxide in FLAKES P
2O
50～75%, barium oxide BaO0～18%, plumbous oxide PbO0～30%, magnesium oxide MgO0～20%, cobalt oxide CoO 0～1%, boron oxide B
2O
30～15%, arsenic oxide arsenoxide AS
2O
30～1% mixture be distributed in electroceramics around, behind insulator and the metal-ware relative fixed position, put into High Temperature Furnaces Heating Apparatus, vacuum tightness is not less than 6 pascals (can vacuumizing with oxidesintering), be warming up to gradually that titanium alloy or hopcalite are intact to close fusion, be 400-1200 degree centigrade, and be incubated 2-120 minute, again cooling naturally.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93121196A CN1086372C (en) | 1993-12-21 | 1993-12-21 | Method for electric ceramic sintered metal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93121196A CN1086372C (en) | 1993-12-21 | 1993-12-21 | Method for electric ceramic sintered metal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1092396A true CN1092396A (en) | 1994-09-21 |
| CN1086372C CN1086372C (en) | 2002-06-19 |
Family
ID=4993614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN93121196A Expired - Fee Related CN1086372C (en) | 1993-12-21 | 1993-12-21 | Method for electric ceramic sintered metal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1086372C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101328083B (en) * | 2008-07-18 | 2012-03-21 | 詹振明 | Magnesium-aluminum biscuit firing carcass, crystallization agent prepared with the carcass, and matt colored glaze prepared with the crystallization agent |
| CN112573824A (en) * | 2020-10-15 | 2021-03-30 | 宁国市众鑫陶业有限公司 | Antique foaming glaze and preparation method thereof |
| CN114988865A (en) * | 2022-06-10 | 2022-09-02 | 深圳顺络电子股份有限公司 | Low-temperature co-fired ceramic material and preparation method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU814942A1 (en) * | 1979-04-09 | 1981-03-23 | Новокузнецкое Отделение Уральскогонаучно-Исследовательского И Проектногоинститута Строительных Материалов | Light-weight concrete mix and its production method |
| SU876611A1 (en) * | 1979-06-04 | 1981-10-30 | Предприятие П/Я А-1067 | Glass solder for joining metals |
| JPS6278166A (en) * | 1985-09-30 | 1987-04-10 | 岩本 信也 | Material and method of bonding ceramics with metal oxide molten body |
-
1993
- 1993-12-21 CN CN93121196A patent/CN1086372C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101328083B (en) * | 2008-07-18 | 2012-03-21 | 詹振明 | Magnesium-aluminum biscuit firing carcass, crystallization agent prepared with the carcass, and matt colored glaze prepared with the crystallization agent |
| CN112573824A (en) * | 2020-10-15 | 2021-03-30 | 宁国市众鑫陶业有限公司 | Antique foaming glaze and preparation method thereof |
| CN114988865A (en) * | 2022-06-10 | 2022-09-02 | 深圳顺络电子股份有限公司 | Low-temperature co-fired ceramic material and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1086372C (en) | 2002-06-19 |
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