CN1040227A - The method of pottery electroless plating pre-treatment - Google Patents
The method of pottery electroless plating pre-treatment Download PDFInfo
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- CN1040227A CN1040227A CN 88104823 CN88104823A CN1040227A CN 1040227 A CN1040227 A CN 1040227A CN 88104823 CN88104823 CN 88104823 CN 88104823 A CN88104823 A CN 88104823A CN 1040227 A CN1040227 A CN 1040227A
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- stupalith
- liquid
- treatment
- electroless plating
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/52—Multiple coating or impregnating multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemically Coating (AREA)
Abstract
The inventive method provides on stupalith can replace oil removing, alligatoring, sensitization, activation, the method that one step of electroless plating pre-treatment of steps such as reduction carries out.And the not only available immersion way of this method carries out bulk treatment to pottery, also can adopt mode such as smear to realize the purpose of ceramic surface Local treatment, treated stupalith suitably can directly carry out electroless plating after the baking, the result has the metal level of superior weldability energy at ceramic material surfaces pre-treatment position deposition one deck, thereby realizes that stupalith and other can weld the welding of parts.The inventive method is simple, with low cost, control is easy, effect is good, of many uses.
Description
The present invention is a stupalith electroless plating pre-treating process.It is characterized in that smearing one deck under the ceramic material surfaces normal temperature condition contains catalytic metal, hydrofluoric acid, the organic solution of materials such as organic indicator gets final product electroless plating behind overbaking, the metal level of good solderability is arranged giving into treatment sites deposition one deck.The invention still further relates to the goods that adopt this method to make.
The pottery electroless plating is a technique known, for carrying out smoothly of electroless plating, and obtains to have the coating of premium properties, must comprise the pre-treatment of oil removing-cleaning-alligatoring-sensitization-activation-cleaning-step complexity such as reduction to stupalith.As CN85 102168A patent disclosure a kind of insulated porcelain sleeve surface metalation technology, its purpose is to adopt cryogenic automatic catalytic nickel plating, copper coating to reach the surface metalation of insulating porcelain sleeve of power capacitor regulation.It has adopted above-mentioned multiple tracks step to carry out pre-treatment, and is the mode of soaking that all adopts, and makes whole technology loaded down with trivial details, complicated, and various pretreatment liquids are wayward.It does not also solve the method for selective chemical plating well, soaks because pre-treatment is just whole, and it is very difficult to desire local electroplating, so be difficult to be applied in the big production workpiece especially small-sized, the surface shape complexity.
And for example disclose in the CN86 1 03987A patent and a kind of glass-ceramic class material has been carried out pretreated method with the catalysis colloid, directly carry out electroless copper, nickel, cobalt, obtain the bondable metal layer in one deck sticking power jail on the glass-ceramic surface, though this method improves to some extent to aforesaid pre-treating process, and realized the purpose of Local treatment, but still need in its pre-treatment process to do to strengthen cleaning, increased the investment of operation and equipment with a large amount of organic solvents or ultrasonic wave to stupalith.On the other hand owing to contain multiple colloidalmaterial in this pretreatment liquid, in the Air drying process, be difficult to remove, at ceramic material surfaces pre-treatment position except that catalytic metal particle, also residual considerable colloidalmaterial, these materials can influence the metal level of chemical plating and the enhancing of ceramic material surfaces intermolecular " Van der Waals force ", the enhancing of sticking power is limited to, especially under hot conditions, the colloidalmaterial decomposition also can cause existing loss of adhesion, this technology practical ranges is limited to some extent, large-scale and the bad application of stupalith need high-temperature soldering (as the silver-copper brazing alloy welding).
The objective of the invention is to be the pretreatment liquid that can avoid above-mentioned weak point is provided, make oil removing, alligatoring, sensitization, activation, steps such as reduction can one go on foot carries out, and also exempts the cleaning after each step.
It is also unaffected under hot conditions that this pretreatment liquid also can further increase the sticking power of metal level, reaches to enlarge the range of application that chemistry is plated in the functional coating aspect.It comprises the steps:
1, the stupalith of indication of the present invention is the pottery of broad scope, both can be general three components (quartz, feldspar, clay) pottery, also can be steatite ceramic, alumina porcelain, oxide compound porcelain, refractory materials and some magneticsubstance, semiconductor material etc.
2, pretreatment liquid contains the catalytic metal palladium ion, play the metallic tin ion of sensibilized, hydrofluoric acid and organic indicator, it can be that acid scarlet, methyl red or other have the organic indicator of indicative function, its solvent can be acetone, ethanol, also can contain multiple organic solvents such as pimelinketone, lacquer thinner, methylbenzene.
3, pretreatment liquid can adopt immersion, also can adopt modes such as partial smearing that stupalith is carried out integral body or Local treatment.
4, the stupalith after the pre-treatment toasted 1-3 hour under 120 ℃～250 ℃ temperature, its equipment can be used baking oven, also can use other thermal source, but must keep clean, the color for the treatment of the processed part can be carried out electroless plating below all stripping postcooling to 60 ℃.
5, chemical plating groove liquid can be selected for use from numerous known various successful chemical plating groove liquids.But both high temperature, middle temperature, but low temperature again, but but not only nickel plating but also copper facing.
The inventive method technology is simple, and is easy to operate, and behind chemical nickel plating, metal plating has good solderability, and sticking power can be up to 222.7kgf/cm
2, soldering resistance can not change more than ten minutes in 280 ℃ of immersions in the fused tin liquor, both available plumber's solder welding, and also the available silver spelter solder welds under 800 ℃ of-900 ℃ of reducing atmospheres.Because the void content of metal level goes to zero, so air-tightness is also fine.
Below just be to use the example of the inventive method:
The preparation of embodiment one, pretreatment liquid:
First liquid PdCl
2(Palladous chloride) 1-3g, with pouring 100 milliliters of dissolvings of acetone (A) tin protochloride 1-3g after (36%) 0.4～1.2 milliliter of dilution of hydrochloric acid into, with 100 milliliters of dissolvings of acetone (B), 0.01～0.3g methyl red or other pigment dyestuff, with 100 milliliters of dissolvings of acetone (C), (B) slowly poured into (A) under agitation condition, and then mix with (C), then add the acetone surplus again, make total amount reach 1000 milliliters of sealings and deposit standby.
Second liquid HF(hydrofluoric acid) 100～300 milliliters.Methyl red 0.01～0.3g, being supplemented to total amount with the mixed solution of ethanol and acetone is that 1000 milliliters of sealings are deposited standby.For well, ethanol is very few more than ethanol for acetone, and oil removing and alligatoring effect are poor slightly, and ethanol is too much, and then first liquid mixes the back and easily precipitates with second liquid.
Get the first liquid and the second liquid of some quantity during use, by first: second=1: 0-2 mixes, or handles after the position smears second liquid drying in desire earlier, smears first liquid in co-located again, and two kinds of method effects are identical.
Embodiment two,
Use pretreatment liquid to handle the back chemical nickel plating on insulating porcelain sleeve of power capacitor, implementation step is as follows:
1,, removes surperficial floating dust with the insulator flushing with clean water.
2, the pretreatment liquid of embodiment one preparation is evenly spread upon the position of the desire metal cladding of no glaze with writing brush, but every milliliter of application area 100cm
2More than.
3 put into the baking oven baking, and 160 ℃～200 ℃ of temperature, are treated can take out after color strips standby at 1.5 hours time.
4 are immersed in the insulator of handling well in the following coating bath liquid:
Nickelous chloride 25g/ rises sodium hypophosphite 8.5g/ liter
Trisodium Citrate 10g/ rises sodium acetate 12.5g/ liter
70-75 ℃ of 40 minutes-1 hour time of pH value 4-5 temperature
The present invention: 1. make the technology of electroless copper or nickel plating replace " by silver-colored burning infiltration method " or " molybdenum manganese method ", the practical function metallization becomes possibility.
2. adopt the present invention can save a large amount of raw material, water, the consumption of electricity, equipment only needs coating bath and baking oven, and operation is very simple, is easy to grasp.
3. do not contain the noxious materials such as cyanogen or chromium in the pretreatment liquid of the present invention, do not have the discharging of waste liquid. Therefore do not exist the harm of human body and the pollution of environment.
Claims (5)
1, the present invention is a stupalith electroless plating pre-treating process, with the pretreatment liquid that contains catalytic metal ion, under normal temperature condition, desire after lining metal level position smears in ceramic material surfaces, can carry out electroless plating through baking, give the metal level that into treatment sites deposition one deck has good solderability at stupalith, it is characterized in that: the stupalith of (1) indication of the present invention is the generalized pottery, both can be feldspathic porcelain, steatite ceramic, alumina porcelain, oxide compound porcelain, refractory materials and some magneticsubstance and semiconductor material etc.; (2) contain hydrofluoric acid and catalytic metal palladium salt in the pretreatment liquid, and its primary solvent is an acetone, also can contains ethanol and other organic solvent; (3) pretreatment liquid gives into treatment sites to ceramic material surfaces and has effect such as oil removing, alligatoring, sensitization, activation simultaneously and needn't do to strengthen with organic solution or ultrasonic wave to stupalith and clean; (4) smearing " pretreatment liquid " back storing temperature is 120 ℃-250 ℃.
2,, it is characterized in that pretreatment liquid contains 1000 milliliters in first liquid acetone, tin protochloride 1-3g/ liter, (36%) 0.4～1.2 milliliter/liter of hydrochloric acid, Palladous chloride 1-3g/ liter, methyl red 0.01～0.3g/ liter according to the method for claim 1; Second liquid hydrogen fluoric acid 100-300 milliliter, 700～900 milliliters of acetone ethanol, methyl red 0.01～0.3 grams per liter.Using method: first: second=1: 0-2 mixes the back to be used, or after pruning liquid earlier, co-located is coated with first liquid.
3,, it is characterized in that 160 ℃-200 ℃ of storing temperatures, time 1-2 hour according to the method for claim 1.
4, according to the method for claim 1, stupalith can also silver-copper brazing alloy melting welding under 840 ℃ of-900 ℃ of reducing atmosphere conditions after carrying out chemical nickel plating.
5, by the goods of claim 1 and 4 described methods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88104823 CN1013503B (en) | 1988-08-10 | 1988-08-10 | Pretreatment of chemical plating for ceramic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88104823 CN1013503B (en) | 1988-08-10 | 1988-08-10 | Pretreatment of chemical plating for ceramic |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1040227A true CN1040227A (en) | 1990-03-07 |
| CN1013503B CN1013503B (en) | 1991-08-14 |
Family
ID=4833148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88104823 Expired CN1013503B (en) | 1988-08-10 | 1988-08-10 | Pretreatment of chemical plating for ceramic |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1013503B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100451166C (en) * | 2005-09-09 | 2009-01-14 | 清华大学 | Chemical plating activating process and metal depositing process therewith |
| CN104178752A (en) * | 2013-05-23 | 2014-12-03 | 中国科学院大连化学物理研究所 | Activation method used before chemical plating of palladium or palladium alloy film |
| CN104961439A (en) * | 2015-06-24 | 2015-10-07 | 陈星宏 | High-strength multi-purpose ceramic production technique |
| CN111342204A (en) * | 2018-12-19 | 2020-06-26 | 讯创(天津)电子有限公司 | Manufacturing method of ceramic material surface 5G three-dimensional laser etching antenna |
-
1988
- 1988-08-10 CN CN 88104823 patent/CN1013503B/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100451166C (en) * | 2005-09-09 | 2009-01-14 | 清华大学 | Chemical plating activating process and metal depositing process therewith |
| CN104178752A (en) * | 2013-05-23 | 2014-12-03 | 中国科学院大连化学物理研究所 | Activation method used before chemical plating of palladium or palladium alloy film |
| CN104178752B (en) * | 2013-05-23 | 2017-09-26 | 中国科学院大连化学物理研究所 | A kind of chemical palladium-plating or its alloy film carry out the activation method before chemical plating |
| CN104961439A (en) * | 2015-06-24 | 2015-10-07 | 陈星宏 | High-strength multi-purpose ceramic production technique |
| CN111342204A (en) * | 2018-12-19 | 2020-06-26 | 讯创(天津)电子有限公司 | Manufacturing method of ceramic material surface 5G three-dimensional laser etching antenna |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1013503B (en) | 1991-08-14 |
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