CN1033709C - Process for roll plating of non-metallic surface - Google Patents
Process for roll plating of non-metallic surface Download PDFInfo
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- CN1033709C CN1033709C CN 89106434 CN89106434A CN1033709C CN 1033709 C CN1033709 C CN 1033709C CN 89106434 CN89106434 CN 89106434 CN 89106434 A CN89106434 A CN 89106434A CN 1033709 C CN1033709 C CN 1033709C
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Abstract
The present invention discloses a process for chemical roll plating, which solves the problem of difficult batch chemical plating on the surface of a non-metallic material member with small dimensions. In the method of the present invention, the members to be plated are coarsened in a rotary sand bucket or a sand blasting bucket which uses sand blasting as dynamic force to roll the members to be plated. Silver or copper or nickel is chemically deposited on the members to be plated which are pretreated by coarsening in a rotary roll plating bucket. Thus, batch process can be carried out, the chemical reaction speed and the metallic deposition speed on the surfaces of the plated members are improved, and the performance of the plating layer is improved.
Description
The present invention relates to processing method at nonconducting non-metal material surface chemistry barrel plating metal.Specifically, the invention provides at the less electrically nonconducting material of size, as glass, glass reinforced plastic, plastics, pottery, on the building stones surface, the barrel plating metal, as copper, the processing method of silver or nickel.
The application number 87100440 that the present inventor submitted on January 27th, 1987, title is in " brushing copper coating " on electrically nonconducting material, disclose on various electrically nonconducting materials, do not had employed combinatorial chemistry solution in the technology of electrochemistry metal brush-plating and the brush plating process.But, be used in the described method of this patent, can only make the non-metal material surface metallization with the method for brush plating.For the less practical component of some sizes,, just can't make its surface metalation with the method for brush plating as sensor element.
The invention provides a kind of processing method of chemical barrel plating, with the problem of this method solution at the less non-metal material surface metallizing of size.Particularly the material volume that will plate is all felt at need with the method for brush plating or groove plating below 2 cubic centimetres the time, and the method with barrel plating but can obtain very ideal effect.Therefore, the purpose of this invention is to provide a kind of barrel plating method, this method is suitable for making the less non-metal material surface of size to metallize.Small-sized non-metallic material product that will plate and plating bath are packed in the barrel plating bucket simultaneously, by the rolling of drum, make plating bath and want plating piece constantly to stir in drum, make the small piece surface metalation.Like this, not only can carry out batch machining, and help improving the chemical reaction velocity on product surface, metal deposition speed, and improved the performance of coating.
Technological process provided by the invention mainly comprises pre-treatment and barrel plating two parts, and details are as follows.
1. mechanical roughening treatment
Roughening treatment is to adopt certain method, makes a kind of method of being handled by the plating surface roughening.Purpose has two.(1) makes by plating surface roughening increase surface area; Improve the microstate on surface; (2) improve by the plating wettability of the surface, improve the activity on its surface.
The machinery alligatoring is often adopted sandblast or is rolled sand and handle, and selects for use according to condition.
Sandblasting is contained in plating piece in the special-purpose sand blasting barrel.Intake Quantity should be decided according to the size of sand blasting barrel, 500-1000 of general Intake Quantitys.Select 120-250 purpose alumina grits or silicon oxide sand grains for use,, carry out sandblasting facing to plating piece with the air pressure of mini air compressor with 2kg-3kg.Make spray gun aim at the netted cover plate of special-purpose sand blasting barrel during processing, sand grains is sprayed into sand blasting barrel, and, the plating piece in the sand blasting barrel is stirred under the promotion of sand grains and air-flow by constantly changing the angle of its spray gun.If plating piece is heavier, sand grains and air-flow can not make it stir, and just need constantly to stir plating piece by shaking sand blasting barrel.The distance of spray gun and plating piece is 10-15dm during sandblasting, and the time decides according to the quantity and the effect of plating piece, and effect is with the even deepening of surface color, macroscopic view do not see that spray is hindered or uneven vestige for well.
Roll sand and handle, mix in the special-purpose sand rolling barrel of packing into according to a certain percentage plating piece and aluminum oxide or silicon oxide sand grains.Sand rolling barrel is contained on the Sand Rolling Machine, makes sand grains and plating piece by the bump that rolls, reach the purpose of plating piece surface coarsening with certain rotating speed.Roll the sand processing and generally can select 80-250 order aluminum oxide or silicon oxide sand grains for use; Sand rolling barrel interior sand grains and the plating piece total amount of packing into accounts for 1/2-2/3 of sand rolling barrel cumulative volume; The volume ratio of sand grains and plating piece is about 1: 1 or 1.5: 1; Rolling the quantity of the plating piece of sand processing should decide according to the volume size of sand rolling barrel at every turn, generally is about 1000-5000; Rolling the sand rotating speed is 15 rev/mins-150 rev/mins.Speed governing is rolled sand and can be improved and roll the sand effect, rolls the sand time and decides according to effect.Effect does not see that to observe the even deepening of plating piece surface color the uneven sand vestige that rolls is for better.In actual production,, can design and produce special-purpose sand rolling barrel, be clipped in and roll the sand processing on the lathe if do not have special-purpose Sand Rolling Machine.
2. separation sand grains
The plating piece and the sand grains that adopt sandblast or roll after sand is handled are blended in a place, select sieve shakeout grain for use, make plating piece and sand grains and separate.The sand grains of separating is collected in order to usefulness again, and plating piece is contained in and changes down the operation processing in the plastic basket over to.
3. water rinse
Purpose is dust removal and wetting situation and the surfactivity of checking the plating piece surface.Plating piece after the mechanical roughening treatment is contained in the plastic basket, stirs with the limit of waterside flushing from the beginning.With thorough cleaning attached to its surperficial dust.The operator should note observing following effect in the process of rinsing:
(1) do not have dust in the flowing water after the rinsing, illustrate that wash effect is better;
(2) the plating piece surface attachment has the successive moisture film, and does not have the discontinuous globule, illustrates that its surface wettability is good, and is active good.And the effective of mechanical alligatoring be described.
4. chemical roughen is handled
Purpose is to improve the effect of mechanical roughening treatment, is a kind of compensatory roughening treatment operation.At first coarsening solution is poured into during processing in the special-purpose plastic containers, again plating piece is poured in the coarsening solution, stir, pull out immediately after observing its moistened surface, put into plastic basket and change down operation over to.
When chemical roughen is handled, should select for use corresponding coarsening solution to handle according to the material of plating piece; Carry out at normal temperatures; Time generally is controlled in 3-15min, the easily short length that is difficult for.If mechanical alligatoring effect is better, can save this operation; The material of anticorrosive difference such as building stones etc. also can save this operation.
5. water rinse
Purpose is checked the alligatoring effect; The chemical roughen raffinate on rinsing plating piece surface.With waterside flushing from the beginning, stir on the limit, and with thorough cleaning plating piece, residual coarsening solution is removed in rinsing.The operator notes observing two effects when rinsing:
(1) observes the plating piece surface and lose residual coarsening solution, do not contain coarsening solution in the flowing water after the rinsing, illustrate that wash effect is good;
(2) observing the plating piece surface attachment has the successive moisture film, and does not hang with the discontinuous globule, illustrates that the roughening treatment effect is better.
After the rinsing, the basket that plating piece is housed is set up, remove the moisture content on plating piece surface.
6. ionising treatment
Purpose is to make through the highly active ion glue of absorption one deck on the plating piece surface that is active condition after the roughening treatment, to improve the activity that it is plated the surface; Induce carrying out fast of silver plating reaction; Guarantee to obtain uniform silvering.
Ionising treatment should be selected corresponding ionization solution for use according to the material of plating piece.
Ionising treatment is generally carried out at normal temperatures.During processing, at first selected ionization solution is poured in the special-purpose plastic containers, the plating piece of roughening treatment is poured in the ionization solution soaked 5-15min again, and constantly stirring makes the plating piece surface fully contact with solution, fully wetting.The amount of taking of solution can be decided according to the quantity of the plating piece of primary treatment.
Pull out immediately after the ionising treatment from solution, be contained in the plastic basket, sky goes to change operation down immediately behind the solution.
7. water rinse
Purpose is the raffinate of the ionization solution that is not adsorbed of flush away plating piece surface.With tap water rinsing repeatedly.In order to improve wash effect.When rinsing, should constantly stir, and when rinsing, note observing following effect
(1) more even after the ionising treatment through the rinsing color and luster.The effect that ionising treatment is described is better;
No white suspension thing in the draining after the rinsing illustrates that wash effect is better.
Unplated piece just can be at surperficial lining metal through after the above-mentioned processing.As requested, can electroplate, also can be in copper coating or nickel plating.
Silver-plated
Purpose is to utilize redox reaction to become argent to be deposited on the surface of highly active plating piece the silver ion reduction in the solution, forms uniformly, fine and close, the successive silvering.
When silver-plated, can select to use following first-1 or first-No. 2 liquid silvering solution according to the quantity and the requirement of plating piece.Generally be, earlier with first, the second in the silver plating solution, the third three kinds of component solution.According to first: second: the third=2: 1: 1 proportionlity, respectively get certain amount and pour into the plastics barrel plating in-drum mixing of usefulness evenly, again the plating piece of handling well is poured into the barrel plating bucket, be installed in again roll on the roller press silver-plated.The rotating speed of barrel plating bucket is generally 5 rev/mins-15 rev/mins on the barrel plating machine.Through 30min-60min, just can observe deposition layer of even silvering on the surface of plating piece.
Silver-plated temperature is generally at 20-50 ℃, and temperature raises, and the sedimentation velocity of plating bath obviously increases.But utilization ratio slightly reduces, and generally is preferably in beginning plating about 25-35 ℃.
The relation of plating piece quantity and the silver plating solution amount of taking sees the following form.
Plating piece quantity and silver plating solution are taken magnitude relation (reference)
The plating piece silver plating solution amount of taking
Individual/cm the first and second the third
10000/2cm 4-6 2-3 2-3
10000/cm 2-3 1-1.5 1-1.5
When silver-plated, the operator should carefully observe the variation of plating bath and the surface of plating piece and change in operating process.The plating bath color shoals, and there is deposition of silver on the plating piece surface, illustrates that solution begins to decompose; The plating bath colour-change is very big, and has a large amount of black suspension things, and the plating piece surface has deposited layer of even white silvering, and or else solution change, and illustrates that plating bath decomposes substantially to be over.
The plating piece that plating is good is poured out from the barrel plating bucket with plating bath and is separated, and packs into plating piece in the plastic basket or changes down operation in the multi-hole type plastics drum.Solution collects.Focus on.
Water rinse
Purpose is the silver plating solution on rinsing plating piece surface.With repeatedly rinsing of tap water, in order to improve rinsing effect, can in rinse cycle, constantly stir, perhaps plating piece is contained in the rinsing of rolling in the drum of multi-hole type.
If chemical plating is clean attached to the rinsing that the plating bath and the impurity on silvering surface must be conscientious as work coating, prevent to add in the Working environment, the quality quality of rinsing will influence the quality of product.The operator must cause enough attention.
If chemical plating can not meet the demands, continue to electroplate by rolling, change the performance of silvering.
Airing
Plating piece after the rinsing, the sky part of anhydrating pushes away being sprinkling upon clean local airing or drying.
Airing or drying in the sun plating piece are collected in the clean plastics bag standby.
Below illustrate rolling silver plating solution prescription and compound method.
Example 1. 1# coarsening solutions
Prescription:
Chromium trioxide CrO
310-30g/l
Sulfuric acid H
2SO
4(98%) 50-150ml/l
pH ＜1
Compound method
Take by weighing the metering chromium trioxide and put into the 1000ml meter glass, add deionized water 600ml, stirring is dissolved chromium trioxide fully.Measure the sulfuric acid of metering with measuring cup, under constantly stirring, be added in the solution lentamente, and be diluted to scale, stir, behind the naturally cooling, be stored in the Glass Containers standby.
Example 2. 2# coarsening solutions
Prescription:
Chromium trioxide CrO
310-30g/l
Sulfuric acid H
2SO
4(98%) 30-60ml/l
Hydrofluoric acid HF 10-25ml/l
pH ＜1
Compound method
Take by weighing the metering chromium trioxide, put into the 1000ml meter glass, add deionized water 600ml, stirring is dissolved chromium trioxide fully.Measure the sulfuric acid of metering with measuring cup, under constantly stirring, be added in lentamente in the solution, stir, behind the naturally cooling, add metering hydrofluoric acid again, and be diluted to the 1000ml scale, stir, be stored in the plastic containers standby.
Example 3. 3# coarsening solutions
Prescription:
Potassium permanganate KMnO
45-15g/l
Sulfuric acid (98%) 10-30ml/l
Compound method
The potassium permanganate that takes by weighing metering is put into the 1000ml meter glass, adds deionized water 600ml stirring it is dissolved fully.The sulfuric acid of measuring metering with measuring cup is added in solution lentamente under constantly stirring, thin up stirs to scale, is stored in the Glass Containers standby.
Example 4. 1# ionization solution
Prescription:
Tin protochloride SnCl
22H
2O 15-50g/l
Hydrochloric acid HCl (36%) 30-80ml/l
3-5/l of glycerine
pH ＜1
Compound method
The tin protochloride that takes by weighing metering is put into the 1000ml meter glass, measures the hydrochloric acid of metering with measuring cup, is stirred to precipitation and dissolves fully, under constantly stirring, add deionized water and be diluted to the 1000ml scale, add several glycerine, stir, and add several tin grains, be stored in the Glass Containers standby.
Example 5. 2# ionization solution
Prescription:
Tin protochloride SnCl
22H
2O 15-40g/l
Sodium hydroxide NaOH 50-70g/l
Seignette salt 50-70g/l
3-5/l of glycerine
pH -10—11
Compound method
Take by weighing tin protochloride, sodium hydroxide, the Seignette salt of metering, put into the 1000ml meter glass, add a certain amount of deionized water, be stirred to fully dissolving after, addend drips glycerine again, thin up stirs to scale, is stored in the Glass Containers standby.
Example 6. silver plating solutions
Silver plating solution mixes use in use by first, second, the third three kinds of component solution compositions.
A first liquid-1
The first liquid formula
Silver Nitrate AgNO
330-60g/l
Ammoniacal liquor NH
4OH (26-28%) 100-150ml/l
pH -9—10
Compound method
The Silver Nitrate that takes by weighing metering is put into the 1000ml meter glass, adds the 600ml deionized water, stirs Silver Nitrate is dissolved fully, at the ammoniacal liquor of measuring metering with measuring cup, is added in the solution lentamente under constantly stirring, and is stirred to sediment completely dissolve.Be diluted to the 1000ml scale with deionized water, stir, be stored in the plastic containers standby.
First liquid-2
Prescription
Silver carbonate Ag
2CO
320-40g/l
Ammoniacal liquor NH
4OH (26-28%) 100-150ml/l
pH -9—l0
Compound method
The silver carbonate that takes by weighing metering is put into the 1000ml meter glass, adds the 600ml deionized water, stirs silver carbonate is dissolved fully, at the ammoniacal liquor of measuring metering with measuring cup, is added in the solution lentamente under constantly stirring, and is stirred to sediment completely dissolve.Be diluted to the 1000ml scale with deionized water, stir, be stored in the plastic containers standby.
B second liquid
Prescription
Sodium hydroxide NaOH 30-50g/l
pH ＞14
Compound method
In the meter glass of 1000ml, at first add the 600ml deionized water, the sodium hydroxide that takes by weighing metering is put into water, and is stirred to dissolving fully immediately.Add deionized water again and be diluted to 1000ml, after stirring, naturally cooling is stored in the plastic containers standby.
C third liquid
Prescription
Glucose 80-120g/l
Tartrate 5-10g/l
Alcohol 60-110ml/l
Compound method
The glucose, the tartrate that take by weighing metering are respectively put into the 1000ml meter glass, add deionized water 800ml, stir its solid is dissolved fully, and heated and boiled is 10 minutes then.Behind the naturally cooling, measure the alcohol of metering, be added in the solution, and add and be diluted to the 1000ml scale, after stirring, be stored in the plastic containers standby with measuring cup.
In silver-plated process, also note that these points.
1. chemical roughen is handled and be selected corresponding coarsening solution for use according to the material of plating piece, and general plastics, glass reinforced plastic select for use 1# coarsening solution, pottery, glass to select the 2# coarsening solution for use.
If mechanical alligatoring effect is better, chemical roughen is handled and can be saved.
2. ionising treatment also should be selected ionization solution of different nature for use according to the material of plating piece, and general plastics, glass reinforced plastic, ceramic acid stone goods are selected 1# ionization solution for use, and alkaline building stones are selected 2# ionization solution for use.
3. used various vessel of plating bath answer multiselect with plastics or glasswork, and vessel in the master operation and instrument should be special-purpose, and each operation all should carefully be operated, and prevents to introduce pollutent.
4. the blunger prevents that in the operation operation that the time should put on one's gloves various plating baths from directly contacting with human body.
5. coarsening solution, ionization solution all can repeatedly use, and can replenish new soln at any time as required, and the time spent should not be placed in the encloses container and preserve.
6. the recovery that silver plating solution should be conscientious after using, collecting has very big using value after focusing on.Select to use silver plating solution according to the material of plating piece with to the requirement of coating.
But the plating piece surface is copper facing or nickel also.Plating piece can be at surperficial barrel plating copper or nickel by following step through after the pre-treatment.
Activation treatment
Purpose is to obtain highdensity catalytic active center on the surface of plating piece, improves the surfactivity of plating piece.
The 1# activation solution is generally adopted in copper facing, and the 2# activation solution is generally adopted in nickel plating.
Activation treatment generally is to carry out at normal temperatures.During processing, at first selected activation solution is poured in the special-purpose plastic containers, the plating piece that ionising treatment is crossed is poured in the activation solution again, stirs its plating piece surface is fully contacted with solution, and is fully wetting.The amount of taking of solution can be decided according to the quantity of the plating piece of disposable processing, but the amount of taking can not be too many, in order to avoid cause waste.Also can carry out activation treatment with the mode of spray.Should constantly stir plating piece during spray, make plating piece all wetting.
During activation treatment, the color of being plated the surface should change, and whether the operator should change even by the color and luster of observing the plating piece surface, the determination processing effect.
After the activation treatment, pull out immediately from solution, be contained in the plastic basket, sky removes solution, changes down operation over to.
Water rinse
Purpose is the residual activation solution of flush away plating piece, in order to improve wash effect, should constantly stir when rinsing, and note observing following effect at rinse cycle.
(1) more even through the variation of rinsing plating piece surface color, illustrate that pretreating effect is good.
(2) no suspended substance in the draining after the rinsing illustrates that wash effect is good.
Rolling copper facing or nickel
Purpose is to utilize redox reaction, with the copper in its solution or nickel ion reducing metal copper or nickel deposition on the surface of highly active plating piece, form even, fine and close successive copper or nickel coating.
During barrel plating, can amass according to the quantity of plating piece and by surfacing, get a certain amount of barrel plating solution, pour special-purpose plastics or Glass fibre reinforced plastic tub barrel plating into, again the plating piece of handling well is poured in the barrel plating bucket, and being installed in rolling copper facing or nickel plating on roller press, the rotating speed of drum is generally 5 rev/mins-15 rev/mins on the barrel plating machine.Just can observe deposition layer of even copper coating or nickel coating on the quilt surface of plating through 30-60min.
Copper electrolyte is selected in rolling copper facing for use, and beginning plating temperature is generally at 25-50 ℃.Nickel plating bath is selected in rolling nickel plating for use, and beginning plating temperature is generally at 30-60 ℃.
The plating piece that plating is good separates to pour out in the barrel plating bucket with plating bath, packs into plating piece in the plastic basket or changes down operation in the multi-hole type plastics drum over to, and solution collects and focuses on.
Water rinse
Purpose is copper electrolyte or the nickel plating bath that the surface is plated in rinsing.With tap water rinsing repeatedly, in order to improve its rinsing effect, can in rinse cycle, constantly stir, perhaps plating piece is contained in the rinsing of rolling in the drum of multi-hole type.
The electricity barrel plating
Purpose is to improve the performance of coating, satisfies technical requirements.Can select plating bath, plating piece to put into electric barrel plating equipment as required and carry out the barrel plating processing.In surface electrical barrel plating layer of metal,, also can carry out the groove plating again if do not possess electric barrel plating equipment.With airing behind the water rinse, be last product then.
Rolling coarsening solution used in the silver plated technology all can use in barrel plating copper or nickel.Barrel plating copper or activation solution that nickel uses and plating bath are narrated in following example.
Example 7. activation solutions
Prescription 1# activation solution
Silver Nitrate AgNO
33-8g/l
Ammoniacal liquor NH
4OH 20-45ml/l
3-5/l of glycerine
pH -9
Compound method
The Silver Nitrate that takes by weighing metering is put into the 1000ml meter glass, adds the 600ml deionized water, stirs solid is dissolved fully, measures the ammoniacal liquor of metering again with measuring cup, add solution under constantly stirring, and stirring makes sediment completely dissolve.Drip several glycerine, deionized water is diluted to the 1000ml scale, stirs, and is stored in the plastic tank standby.
Example 8. 2# activation solutions
Prescription
Palladous chloride 1-1.5g/l
Hydrochloric acid 10-16ml/l
Compound method
Take by weighing the Palladous chloride of metering, put into the 1000ml meter glass, measure the hydrochloric acid of metering, add certain deionized water, stir and make its dissolving, add entry again and be diluted to scale, stir, be stored in the plastic tank standby with measuring cup.
Example 9. rolling copper plating solutions
First liquid
Prescription
Copper sulfate CuSO
45H
2O 20-60g/l
Seignette salt NaKC
4H
4O
64H
2O 80-180g/l
Disodium ethylene diamine tetraacetate Na EDTA 10-24g/l
Sodium hydroxide NaOH 40-100g/l
TCA reagent 100-250ml/l
Compound method
A liquid. the copper sulfate that takes by weighing metering is put into the 500ml beaker, adds 100ml and goes
Ionized water, heated and stirred is to dissolving fully
B liquid. take by weighing Seignette salt, disodium EDTA, the hydrogen-oxygen of metering
Change sodium and put into the 1000ml meter glass, add the 400ml deionized water and stir
Mix to dissolving fully, under agitation condition, add the TCA examination of metering again
Agent.
Under agitation condition, A liquid is poured in the B liquid, be diluted to the 1000ml scale with deionized water, stir fully, standby in the plastic tank of packing into.
Second liquid
Prescription
Formaldehyde CH
2O (36%) 170-200ml/l
(Fu Er Malin)
Compound method
The methyl alcohol of metering is got in the consumption metering, pours in the 1000ml measuring cup, is diluted to the 1000ml scale with deionized water, after stirring, is stored in the plastic tank standby.
Annotate: (1) TCA reagent is 10-15%Na
2CO
3With 10-5% trolamine
Reagent.
(2) electroless copper solution is using the first and second two kinds of solution by first: second=1: 1 ratio
Example is mixed the back and is used.20-50 ℃ of use temperatures.
Example 10. rolling nickel plating solutions
Prescription
Single nickel salt NiSO
46H
2O 20-33g/l
Trolamine 70-1100g/l
Trisodium Citrate 50-90g/l
Ammonium chloride 25-55g/l
Sodium hypophosphite NaHPO
2H
2O 24-45g/l
Compound method
Take by weighing the single nickel salt of metering, put into the 1000ml meter glass, add a certain amount of deionized water, be stirred to dissolving fully.Get Trisodium Citrate, ammonium chloride, the sodium hypophosphite of metering again with B, pour into and be stirred to dissolving fully in the solution.Get the trolamine of metering again, under agitation condition, add solution.Be diluted to scale with deionized water, stir, be stored in the plastic tank standby.
Example 11.
Roll silver plated technology according to aforementioned, contriver's barrel plating the cardiac monitor electrode pad of ABS plastic compacting.Pole plate is a button shaped, and basic configuration is 10 millimeters garden sheets of diameter, and there is the protruding garden platform of 4 millimeters of diameters at its center.During roughening treatment, locate 500 pieces at every turn, adopted 200 order aluminum oxide sand alligatoring.Silver plating liquid is the silver plating solution described in the example 6, and with first-No. 1 liquid, the combination liquid of the second liquid and third liquid, first in the combination liquid: second: third volume ratio is 2: 1: 1.Silver-plated temperature is 30 ℃.Plating piece is contained in the barrel plating bucket, rotates the barrel plating bucket that is immersed in the plating bath with the speed that per minute 10 changes, and rear electrode plate surface had deposited layer of metal silver equably in 30 minutes.Thickness of coating is 0.03 millimeter, and coating combines firmly with ABS plastic matrix.
Claims (3)
1. nonconducting non-metal material surface forms the barrel plating method of electroless plating metal level, it is characterized in that comprising the steps:
(1) unplated piece is contained in the sand blasting barrel of netted cover plate, by netted cover plate fine sand is sprayed to unplated piece with pressurized air, randomly shake sand blasting barrel, perhaps unplated piece and 1: 1 to 1.5: 1 by volume ratio of 80-250 purpose sand grains are packed in the sand rolling barrel, sand rolling barrel is rolled, so that the unplated piece surface coarsening with 150-150 rev/min speed;
(2) unplated piece that makes surface coarsening and the SnCl that contains the 15-50 grams per liter
22H
2O, 30-80 milliliter/liter hydrochloric acid and 3-5 drip/rise the ionization solution of glycerine or contain 15-40 grams per liter and SnCl
22H
2O, the NaOH of 30-70 grams per liter, the Seignette salt of 50-70 grams per liter fully contacts with the ionization solution that 3-5 drips glycerine, and
(3) contain 30-60 gram Silver Nitrate or 20-40 gram silver carbonate with every liter, and the solution of the ammoniacal liquor of 100-150 milliliter 26-28% mixes with every liter of NaOH solution that contains 30-50 gram and every liter of solution that contains 80-120 gram glucose, 5-10 gram tartrate and 60-110 ml ethanol and puts into the barrel plating bucket, again the unplated piece of having handled well is also put into the barrel plating bucket, barrel plating bucket per minute rotates 5-15 to be changeed, bath temperature is 20-50 ℃, through 30-60 minute, plating piece surface uniform deposition last layer argent.
2. method according to claim 1 is characterized in that after the processing of unplated piece through step (1) and (2), surface not silver-plated and nickel plating or copper, and its processing step comprises:
(3) will be set by step (1) and (2) unplated piece of handling contain 3-8 gram Silver Nitrate with every liter, the ammoniacal liquor of 20-45 milliliter 26-28% and 3-5 drip No. 1 activation solution of glycerine or every liter and contain No. 2 activation solutions that 1-1.5 restrains Palladous chloride and 10-16 milliliter hydrochloric acid and contact;
(4) the barrel plating copper solutions that will contain following compositions is mixed mutually with every liter of solution that contains the formalin of 170-200 milliliter 36%,
CuSO
45H
2O 20-60 grams per liter
Seignette salt 80-180 grams per liter
Disodium ethylene diamine tetraacetate 10-24 grams per liter
NaOH 40-100 grams per liter
TCA reagent 100-250 milliliter/liter
Wherein TCA reagent is the Na that contains 10-15%
2CO
3Solution with the trolamine of 5-10%;
Above-mentioned mixing solutions or the nickel-plating liquid and the unplated piece that contain following component are installed in the barrel plating bucket, make the barrel plating bucket rotate 30-60 minute with 5-15 rev/min speed after, can be at unplated piece copper-depositing on surface or nickel dam;
The nickel-plating liquid composition:
Single nickel salt NiSO
46H
2O 20-33 grams per liter
Trolamine 70-110 grams per liter
Trisodium Citrate 50-90 grams per liter
Ammonium chloride 25-55 grams per liter
Sodium hypophosphite NaHPO
2H
2O 24-45 grams per liter
3. processing method according to claim 1 and 2, the silver that also has been included in unplated piece surface chemistry barrel plating after nickel or the copper, but is put into the rolling Electroplating barrel again at unplated piece surface electric again barrel plating one deck metallizing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89106434 CN1033709C (en) | 1989-08-22 | 1989-08-22 | Process for roll plating of non-metallic surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89106434 CN1033709C (en) | 1989-08-22 | 1989-08-22 | Process for roll plating of non-metallic surface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1049686A CN1049686A (en) | 1991-03-06 |
| CN1033709C true CN1033709C (en) | 1997-01-01 |
Family
ID=4856734
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89106434 Expired - Fee Related CN1033709C (en) | 1989-08-22 | 1989-08-22 | Process for roll plating of non-metallic surface |
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| Country | Link |
|---|---|
| CN (1) | CN1033709C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0510065B1 (en) * | 1989-12-21 | 1998-10-28 | Amesbury Group, Inc. | Catalytic, water-soluble polymeric films for metal coatings |
| CN100378770C (en) * | 2004-12-16 | 2008-04-02 | 四川世纪双虹显示器件有限公司 | Method for raising brightness of plasma display screen |
| JP5125464B2 (en) * | 2007-12-10 | 2013-01-23 | セイコーエプソン株式会社 | Conductor pattern forming ink, conductor pattern and wiring board |
| CN103296462B (en) * | 2012-03-01 | 2017-08-25 | 深圳光启高等理工研究院 | Based on metamaterial sheet processing method and Meta Materials without fibre base plate |
| CN103225092A (en) * | 2013-05-22 | 2013-07-31 | 南通鑫平制衣有限公司 | Plated copper for plastics |
| CN103489506A (en) * | 2013-10-14 | 2014-01-01 | 广州天极电子科技有限公司 | Short circuit chip for surface gold-coated microwave circuit and manufacturing method thereof |
| CN103820791B (en) * | 2014-02-28 | 2015-12-09 | 上海造币有限公司 | A kind of method reducing nickel-coated billet cake annealing temperature or time |
| CN107225329A (en) * | 2017-07-10 | 2017-10-03 | 北京工业大学 | A kind of method for improving glass copper facing bonding strength |
-
1989
- 1989-08-22 CN CN 89106434 patent/CN1033709C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1049686A (en) | 1991-03-06 |
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