CN103741199B - A kind of silver plating liquid predissolve technique - Google Patents
A kind of silver plating liquid predissolve technique Download PDFInfo
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- CN103741199B CN103741199B CN201310747217.4A CN201310747217A CN103741199B CN 103741199 B CN103741199 B CN 103741199B CN 201310747217 A CN201310747217 A CN 201310747217A CN 103741199 B CN103741199 B CN 103741199B
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Abstract
The invention discloses a kind of silver plating liquid predissolve technique, this technique is to join in dissolving tank by pure water, opens the heater being arranged in dissolving tank and the circulating pump being arranged on dissolving tank；Again potassium cyanide is added in dissolving tank；Under the circulation stirring effect of circulating pump, after fully dissolving to potassium cyanide and water, add silver cyanide；Medicinal liquid after dissolving is passed through the drain pipe road, valve and the draw-off pump that are arranged on dissolving tank, medicinal liquid is injected in accumulator tank；After medicinal liquid is injected into accumulator tank, open the heater and medicinal liquid circulating pump that are arranged in accumulator tank；Again the medicinal liquid in accumulator tank is directed in titration groove, is then turned on the circulating pump in titration groove and heater, be then turned on titration dosing pump, by titration dosing pump, medicinal liquid is added in electroplating bath according to the flow velocity set.Adopt above-mentioned technique, it is possible to the electroplate layer thickness making plated silver products is uniform, without salient point, and can save substantial amounts of silver-plated raw material.
Description
Technical field
The present invention relates to a kind of plating liquor treating process, belong to electroplating technology field, be specifically related to a kind of silver plating liquid predissolve technique.
Background technology
Existing silver plating process is used for preventing corrosion, increases conductivity, reflective and attractive in appearance.It is widely used in the process industries such as electrical equipment, instrument, instrument and lighting apparatus.Such as, when copper or copper alloy product are silver-plated, must first derust through oil removing；In the solution that the thin silver of preplating or immersion are made into by mercuric chloride etc. again, carry out mercuration process, make to plate last layer hydrargyrum film at article surface；Then product is made negative electrode, and anode made by fine silver plate, immerses in the silver potassium cyanide electrolyte being made into by silver nitrate and potassium cyanide, electroplates.The industry such as electrical equipment, instrument also adopts non-cyanide silver coating.Electroplate liquid thiosulfate, sulphite, rhodanate, ferrocyanide etc..In order to prevent silver coating from coloring, it is typically passed through plating posttreatment, mainly soaks bright, chemical and electrochemical passivation, plating noble metal or rare metal or be coated with cover layer etc..
But in existing silver plating process, it is common to there is concentration of silver ions and stablize the rare problem of management and control.Time this problem is primarily present in interpolation silver (especially silver cyanide).When adding silver, owing to the impact of dissolution velocity causes that concentration can not get promoting when just starting, after being completely dissolved, steeply rising occurs again in silver ion, thus having had a strong impact on the homogeneity of silvering, is also unfavorable for the control of silver cost.Therefore, it is necessary to the preparation technology of silver plating liquid is improved.
Summary of the invention
It is an object of the invention to overcome the defect existed in prior art, thering is provided a kind of silver-plated medicinal liquid after treatment, and added to evenly in electroplating bath by this medicinal liquid, the silver coating thickness making product is uniform, and the consumption containing silver material can be saved, thus reduce cost.
For achieving the above object, the technical scheme is that a kind of silver plating liquid predissolve technique of design, it is characterised in that described technique comprises the technical steps that:
S1, pure water is joined in medicinal liquid dissolving tank, and be added into designated water level, open the heater being arranged in medicinal liquid dissolving tank and the medicinal liquid circulating pump being arranged on medicinal liquid dissolving tank, water temperature is risen to the temperature of setting；
S2, again potassium cyanide is added in medicinal liquid dissolving tank, be added into the metering of setting；
S3, under the circulation stirring effect of medicinal liquid circulating pump, silver cyanide is added after fully dissolving to potassium cyanide and water, then proceed to heating and by medicinal liquid circulating pump circulation stirring medicinal liquid, until potassium cyanide and silver cyanide are completely dissolved, medicinal liquid circulating pump and heater can be closed；
S4, by the medicinal liquid after dissolving by being arranged on drain pipe road on medicinal liquid dissolving tank, valve and medicinal liquid draw-off pump, the medicinal liquid after being completely dissolved is injected in chemical storage tank；
After S5, medicinal liquid are injected into accumulator tank, open the heater and medicinal liquid circulating pump that are arranged in accumulator tank；
S6, the medicinal liquid in accumulator tank is directed in medicinal liquid titration groove again, it is then turned on the medicinal liquid circulating pump in medicinal liquid titration groove and heater, add to after setting liquid level until medicinal liquid, be then turned on titration dosing pump, by titration dosing pump, medicinal liquid is added in electroplating bath according to the flow velocity set.
For the ease of controlling the concentration of silver plating liquid so that potassium cyanide is by rapid solution, it is preferred that technical scheme is, in described S1 step, pure water adds 2/3 position of medicinal liquid dissolving tank capacity to, and pure water is connected with medicinal liquid dissolving tank by water inlet pipe and valve.
Reduce the blocking of the medicinal liquid circulating pump caused because of crystallization to improve silver cyanide dissolution velocity, it is preferred that technical scheme be in described S3 walks, silver cyanide is at least divided into twice and adding in medicinal liquid dissolving tank.
In order to accelerate potassium cyanide and silver cyanide dissolution velocity, medicinal liquid circulating pump is blocked after avoiding crystallization, by equipment burnout when preventing amount of liquid medicine deficiency, it is preferred that technical scheme also have, being equipped with medicinal liquid circulating pump, heater, liquid level sensor and temperature sensor in described medicinal liquid dissolving tank, chemical storage tank and medicinal liquid titration groove, described heater is electric heater.
Crystallization is not produced in order to ensure medicinal liquid, and not volatile, it is preferred that technical scheme also have, at described medicinal liquid dissolving tank internal heater by medicine liquid heating to 60 DEG C, at chemical storage tank internal heater by medicine liquid heating to 60 DEG C, at medicinal liquid titration groove internal heater by medicine liquid heating to 60 DEG C.
In order to avoid the impurity in medicinal liquid or ingot block medicinal liquid circulating pump, it is preferred that technical scheme also have, be provided with the first filter in the side of described medicinal liquid dissolving tank, the entrance of the first filter by the road with medicinal liquid dissolving tank lower end
Medicinal liquid circulation fluid first exports and connects, the outlet of the first filter by the road, valve be connected with the inlet of medicinal liquid circulating pump, the liquid outlet of medicinal liquid circulating pump is connected with the circulation fluid import of medicinal liquid dissolving tank upper end by the road.
For the ease of by completely the silver-plated medicinal liquid of solvent store for future use, again prepare new medicinal liquid with medicinal liquid dissolving tank simultaneously, it is preferred that technical scheme also have, it is provided with the second filter between described medicinal liquid dissolving tank and chemical storage tank, the entrance of the second filter is connected with circulation fluid second outlet of medicinal liquid dissolving tank lower end by the road, the outlet of the second filter is by the road, the inlet of valve and the second filter connects, the liquid outlet of the second filter is connected with the medicinal liquid import of chemical storage tank upper end by the road, it is additionally provided with medicine liquid outlet in the lower end of chemical storage tank, drain pipe and valve it is connected in exit.
For the ease of monitoring or controlling medicinal liquid liquid level in medicinal liquid titration groove, it is preferred that technical scheme also has, described S6 step is provided with liquid level buoy in medicinal liquid titration groove.
For the ease of the medicinal liquid in chemical storage tank being transferred in medicinal liquid titration groove, to meet actually used needs, preferred technical scheme also has, described S6 walks herb liquid by being directed in medicinal liquid titration groove in chemical storage tank and adopting medicinal liquid draw-off pump to import, or adopt the height fall between chemical storage tank and medicinal liquid titration groove to be imported by pipeline and valve, or by manually being imported by transfer container.
So that silver-plated medicinal liquid is from molten to storage in advance, again by its electroplating bath adding product at the uniform velocity, its running is enable automatically to carry out, it is preferred that technical scheme also have, described valve is electromagnetic valve, described heater, circulating pump, medicinal liquid draw-off pump, titration dosing pump, electromagnetic valve, temperature sensor and liquid level sensor are all connected with PLC, are then added in electroplating bath after molten in advance for medicinal liquid by PLC.
Advantages of the present invention and having the beneficial effects that: this silver plating liquid predissolve technique thoroughly solves the problem that concentration of silver ions stablize management and control difficulty, time this problem is primarily present in interpolation silver (especially silver cyanide), when adding silver, owing to the impact of dissolution velocity causes that concentration can not get promoting when just starting, after being completely dissolved, steeply rising occurs again in silver ion, thus having had a strong impact on the homogeneity of silvering, also it is unfavorable for the control of silver cost.The present invention adopt pre-molten technique, in advance silver cyanide can be dissolved in dissolving tank uniformly, then transfer in chemical storage tank and store, after again through medicinal liquid titration groove, dosing pump add to evenly in electroplating bath.Adopt above-mentioned technique, it is possible to the electroplate layer thickness making plated silver products is uniform, without salient point, and can save substantial amounts of silver-plated raw material.Namely improve product quality, reduce again raw material use cost.
Accompanying drawing explanation
Fig. 1 is the system flow chart of silver plating liquid predissolve technique of the present invention.
In figure: 1, medicinal liquid dissolving tank；2, heater；3, medicinal liquid circulating pump；4, drain pipe road；5, medicinal liquid draw-off pump；6, in chemical storage tank；7, medicinal liquid titration groove；8, titration dosing pump；9, electroplating bath；10, water inlet pipe；11, valve；12, liquid level sensor；13, temperature sensor；14, the first filter；15, pipeline；16, pipeline；17, valve；18, the second filter；19, pipeline；20, valve；21, medicine liquid outlet；22, drain pipe；23, valve；24, liquid level buoy.
Detailed description of the invention
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is further described.Following example are only for clearly illustrating technical scheme, and can not limit the scope of the invention with this.
As it is shown in figure 1, the present invention is a kind of silver plating liquid predissolve technique, this technique comprises the technical steps that:
The first step, pure water is joined in medicinal liquid dissolving tank 1, and be added into designated water level, open the heater 2 being arranged in medicinal liquid dissolving tank 1 and the medicinal liquid circulating pump 3 being arranged on medicinal liquid dissolving tank, water temperature is risen to the temperature of setting；
Second step, again potassium cyanide is added in medicinal liquid dissolving tank 1, be added into the metering of setting；
3rd step, under the circulation stirring effect of medicinal liquid circulating pump 3, silver cyanide is added after fully dissolving to potassium cyanide and water, then proceed to heating and by medicinal liquid circulating pump 3 circulation stirring medicinal liquid, until potassium cyanide and silver cyanide are completely dissolved, medicinal liquid circulating pump 3 and heater 2 can be closed；
4th step, by the medicinal liquid after dissolving by being arranged on drain pipe road 4 on medicinal liquid dissolving tank 1, valve 4 and medicinal liquid draw-off pump 5, the medicinal liquid after being completely dissolved is injected in chemical storage tank 6；
After 5th step, medicinal liquid are injected into accumulator tank 6, open the heater 2 and medicinal liquid circulating pump 3 that are arranged in accumulator tank 6；
6th step, the medicinal liquid in accumulator tank 6 is directed in medicinal liquid titration groove 7 again, it is then turned on the medicinal liquid circulating pump 3 in medicinal liquid titration groove 7 and heater 2, add to after setting liquid level until medicinal liquid, it is then turned on titration dosing pump 8, by titration dosing pump 8, medicinal liquid is added in electroplating bath 9 according to the flow velocity set.
In the present invention for the ease of controlling the concentration of silver plating liquid, make potassium cyanide by rapid solution, preferred embodiment is, in the described first step, pure water adds 2/3 position of medicinal liquid dissolving tank capacity to, and pure water is connected with medicinal liquid dissolving tank 1 by water inlet pipe 10 and valve 11.
In the present invention in order to improve the blocking of the medicinal liquid circulating pump that the minimizing of silver cyanide dissolution velocity causes because of crystallization, further preferred embodiment is, is at least divided into twice by silver cyanide and adds in medicinal liquid dissolving tank 1 in described 3rd step.
In the present invention in order to accelerate potassium cyanide and silver cyanide dissolution velocity, medicinal liquid circulating pump is blocked after avoiding crystallization, by equipment burnout when preventing amount of liquid medicine deficiency, further preferred embodiment also has, being equipped with medicinal liquid circulating pump 3, heater 2, liquid level sensor 12 and temperature sensor 13 in described medicinal liquid dissolving tank 1, chemical storage tank 6 and medicinal liquid titration groove 7, described heater 2 is electric heater.
Crystallization is not produced in the present invention in order to ensure medicinal liquid, and it is not volatile, further preferred embodiment also has, at described medicinal liquid dissolving tank 1 internal heater 2 by medicine liquid heating to 60 DEG C, at chemical storage tank 6 internal heater 2 by medicine liquid heating to 60 DEG C, at medicinal liquid titration groove 7 internal heater 2 by medicine liquid heating to 60 DEG C.
In the present invention in order to avoid the impurity in medicinal liquid or ingot block medicinal liquid circulating pump, further preferred embodiment also has, it is provided with the first filter 14 in the side of described medicinal liquid dissolving tank 1,15 the first outlets circulated with the medicinal liquid of medicinal liquid dissolving tank 1 lower end by the road of the entrance of the first filter 14 are connected, the outlet of the first filter 14 by the road 16, valve 17 be connected with the inlet of medicinal liquid circulating pump 3, the liquid outlet of medicinal liquid circulating pump 3 is connected with the circulation fluid import of medicinal liquid dissolving tank 1 upper end by the road.
In the present invention for the ease of by completely the silver-plated medicinal liquid of solvent store for future use, again prepare new medicinal liquid with medicinal liquid dissolving tank simultaneously, further preferred embodiment also has, the second filter 18 it is provided with between described medicinal liquid dissolving tank 1 and chemical storage tank 6, the entrance of the second filter 18 is connected with circulation fluid second outlet of medicinal liquid dissolving tank 1 lower end by the road, the outlet of the second filter 18 by the road 19, valve 20 is connected with the inlet of the second filter 18, the liquid outlet of the second filter 18 is connected with the medicinal liquid import of chemical storage tank 6 upper end by the road, it is additionally provided with medicine liquid outlet 21 in the lower end of chemical storage tank 6, drain pipe 22 and valve 23 it is connected in exit.
In the present invention for the ease of monitoring or controlling medicinal liquid liquid level in medicinal liquid titration groove, it is preferred that embodiment also has, and is provided with liquid level buoy 24 in described 6th step in medicinal liquid titration groove 1.
In the present invention for the ease of the medicinal liquid in chemical storage tank being transferred in medicinal liquid titration groove, to meet actually used needs, preferred embodiment also has, described 6th step herb liquid is by being directed in medicinal liquid titration groove 7 in chemical storage tank 6 and adopting medicinal liquid draw-off pump 5 to import, or adopt the height fall between chemical storage tank 6 and medicinal liquid titration groove 7 to be imported by pipeline and valve, or by manually being imported by transfer container.
In the present invention so that silver-plated medicinal liquid is from molten to storage in advance, again by its electroplating bath adding product at the uniform velocity, its running is enable automatically to carry out, further preferred embodiment also has, described valve is electromagnetic valve, described heater 2, circulating pump 3, medicinal liquid draw-off pump 5, titration dosing pump 8, electromagnetic valve, temperature sensor 13 and liquid level sensor 12 are all connected with PLC, are then added in electroplating bath after molten in advance for medicinal liquid by PLC.
Embodiment 1
One. dissolve (preparation concentration of silver ions is the Ag-containing solution of 80g/L)
With silver cyanide, potassium cyanide is raw material；Preparation amount of solution is 700L.
A. each medicine institute expense is calculated according to amount of preparation and compound concentration.
According to calculating, silver cyanide 70KG, potassium cyanide 35KG need to be used.
B. in dissolving tank, add about 500L pure water, add 35KG potassium cyanide, medicinal liquid is played circulation heat up (temperature sets 60 DEG C).Circulate and be completely dissolved to potassium cyanide for two hours.
C. adding 70KG silver cyanide in the solution, fill into pure water to 700L, solution circulation is completely dissolved for 24 hours to silver cyanide.
D. laboratory personnel sample analysis, according to analysis result adjustment concentration of silver ions to desired value.
E. the solution configured is drawn in storage tank.
Two. titration is added
A. calculating a groove silver cylinder to add the amount (solution silver content is 80g/L) of Ag-containing solution needed for 24 hours and be computed, within 24 hours, a groove silver cylinder needs 80g/L argentiferous medicinal liquid 60L altogether.
B. from storage tank, taken 60L argentiferous medicinal liquid by full-time staff, medicinal liquid is added in titration groove.By adding of titration groove
Thermal and circulating device open (stablizing setting value for silver cylinder temperature 60 C)
C. setup parameter (for B21 type electromagnetic dosing pump) is calculated according to dosing pump model
Supplementary notes:
1) electromagnetic dosing pump description is looked into it can be seen that the maximum discharge-amount of B21 type is 95ml/min；
2) duty cycle time of dosing pump=dosing pump working time+dosing pump dwell time；
3) maximum discharge-amount * stroke frequency * working time * (24*60)/working cycle total time=infusion volume；Wherein, maximum discharge-amount unit is ml/L, and unit of time is min, and infusion volume unit is ml
According to more than, through calculating, the running parameter of dosing pump is set as follows
| The dosing pump working time | 12s |
| Dosing pump dwell time | 48s |
| Stroke frequency | 44% |
The operation principle of this silver plating liquid predissolve technique is: first dissolved in pre-fluid bowl completely in advance by required silver cyanide, again the medicinal liquid after dissolving is transferred in chemical storage tank (after the medicinal liquid draw-off pump in dissolving tank takes out end, then beginning preparing for next dissolution process) by medicinal liquid draw-off pump.When medicinal liquid need to be used, first put in medicinal liquid titration groove by full-time staff by extraction in chemical storage tank, by the dosing pump in medicinal liquid titration groove, medicinal liquid is added in silver-plated liquid bath.(adjusting the flow of dosing pump according to actual needs, make the medicinal liquid in medicinal liquid titration groove instill uniformly at the appointed time in silver-plated liquid bath).
Its herb liquid circulating pump is used for increasing silver dissolution velocity, and medicinal liquid draw-off pump is for being transferred to medicinal liquid in chemical storage tank from medicinal liquid dissolving tank.Filter is used for impurity screening, it is prevented that the crystallization that silver cyanide does not dissolve enters in medicinal liquid circulating pump, and causes the blocking of pump.Heater is used for heating medicinal liquid, make silver accelerate dissolve, meanwhile, higher temperature make silver dissolve after not easily crystallization.Liquid level sensor is used for controlling liquid level, it is prevented that heater dry combustion method in dipper and damage equipment.Temperature sensor is used for controlling temperature, makes medicinal liquid maintain uniform temperature, makes silver not easily crystallization.
The use step of dissolving tank is: fill into the pure water of about 2/3 volume in dissolving tank, by medicinal liquid circulating pump, heater starting, is warming up to temperature required；Calculate the consumption of required silver cyanide and potassium cyanide；Potassium cyanide is added in dissolving tank；Silver cyanide is added in dissolving tank after being completely dissolved by potassium cyanide, continues to add pure water and mends liquid level to standard liquid level place, and circulation is to being completely dissolved；By laboratory personnel's sample analysis concentration of silver ions, adjust to normal concentration according to result of laboratory test；With medicinal liquid draw-off pump, the argentiferous medicinal liquid after dissolving is transferred in chemical storage tank.
Dissolving tank in use it should be noted that the chemicals used is toxic articles, in use needs to wear relevant protective articles (such as mask, rubber gloves etc.)；Equipment limit needs emergency set, such as eye syringe etc.；Need to there be perfect convulsion ventilation installation in the place placing dissolving tank；Filter element in filter needs periodic replacement, and the filter element after replacing need to be reclaimed by titular company, must not arbitrarily abandon；Need to guarantee that liquid level sensor can normally use, it is prevented that liquid level is too low and burning apparatus before heater uses；Must be first add potassium cyanide during dosing, after potassium cyanide is completely dissolved, add silver cyanide (silver cyanide can be dividedly in some parts, and is favorably improved dissolution velocity) again.
The use step of chemical storage tank is: guarantee that the flowing water Valve of chemical storage tank is closed；Close the valve of circulating pump feed liquor side on medicinal liquid dissolving tank；Open the liquid flowing valve of medicinal liquid draw-off pump side on medicinal liquid dissolving tank；Open the liquid valve door of medicinal liquid draw-off pump opposite side simultaneously；Medicinal liquid extract terminate after, close chemical storage tank water inlet side valve and, simultaneously close off the liquid flowing valve of the medicinal liquid draw-off pump side of medicinal liquid dissolving tank；Open heater and the medicinal liquid circulating pump of accumulator tank；When the medicinal liquid after dissolving need to be used, drug storage liquid can be opened and deposit the outlet valve of groove lower end, release the desired amount of medicinal liquid.
Chemical storage tank in use it should be noted that the chemicals used is toxic articles, in use needs to wear relevant protective articles (such as mask, rubber gloves etc.)；Equipment limit needs emergency set, such as eye syringe etc.；Need to there be perfect convulsion ventilation installation in the place placing dissolving tank；Need to guarantee that liquid level sensor can normally use, it is prevented that liquid level is too low and burning apparatus before heater uses；Because medicinal liquid is severe toxicity solution, therefore it is preferably used special container when taking medicinal liquid.
The use step of titration groove is: added in titration groove by desired amount of medicinal liquid；Open heater and circulating pump；Set dosing pump rate of titration according to actual needs；Open dosing pump switch (dosing pump rate of titration sets the operation instruction that can refer to filled model pump).
Medicinal liquid titration groove in use it should be noted that the chemicals used is toxic articles, in use needs to wear relevant protective articles (such as mask, rubber gloves etc.)；Equipment limit needs emergency set, such as eye syringe etc.；Need to there be perfect convulsion ventilation installation in the place placing dissolving tank；Need to guarantee that liquid level sensor can normally use, it is prevented that liquid level is too low and burning apparatus before heater uses.
The above is only the preferred embodiment of the present invention; it should be pointed out that, for those skilled in the art, under the premise without departing from the technology of the present invention principle; can also making some improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (10)
1. a silver plating liquid predissolve technique, it is characterised in that described technique comprises the technical steps that:
S1, pure water is joined in medicinal liquid dissolving tank, and be added into designated water level, open the heater being arranged in medicinal liquid dissolving tank and the medicinal liquid circulating pump being arranged on medicinal liquid dissolving tank, water temperature is risen to the temperature of setting；
S2, again potassium cyanide is added in medicinal liquid dissolving tank, be added into the metering of setting；
S3, under the circulation stirring effect of medicinal liquid circulating pump, silver cyanide is added after fully dissolving to potassium cyanide and water, then proceed to heating and by medicinal liquid circulating pump circulation stirring medicinal liquid, until potassium cyanide and silver cyanide are completely dissolved, medicinal liquid circulating pump and heater can be closed；
S4, by the medicinal liquid after dissolving by being arranged on drain pipe road on medicinal liquid dissolving tank, valve and medicinal liquid draw-off pump, the medicinal liquid after being completely dissolved is injected in chemical storage tank；
After S5, medicinal liquid are injected into accumulator tank, open the heater and medicinal liquid circulating pump that are arranged in accumulator tank；
S6, the medicinal liquid in accumulator tank is directed in medicinal liquid titration groove again, it is then turned on the medicinal liquid circulating pump in medicinal liquid titration groove and heater, add to after setting liquid level until medicinal liquid, be then turned on titration dosing pump, by titration dosing pump, medicinal liquid is added in electroplating bath according to the flow velocity set.
2. silver plating liquid predissolve technique as claimed in claim 1, it is characterised in that in described S1 step, pure water adds 2/3 position of medicinal liquid dissolving tank capacity to, and pure water is connected with medicinal liquid dissolving tank by water inlet pipe and valve.
3. silver plating liquid predissolve technique as claimed in claim 2, it is characterised in that in described S3 walks, silver cyanide is at least divided into twice and adding in medicinal liquid dissolving tank.
4. silver plating liquid predissolve technique as claimed in claim 3, it is characterized in that, being equipped with medicinal liquid circulating pump, heater, liquid level sensor and temperature sensor in described medicinal liquid dissolving tank, chemical storage tank and medicinal liquid titration groove, described heater is electric heater.
5. silver plating liquid predissolve technique as claimed in claim 4, it is characterized in that, at described medicinal liquid dissolving tank internal heater by medicine liquid heating to 60 DEG C, at chemical storage tank internal heater by medicine liquid heating to 60 DEG C, at medicinal liquid titration groove internal heater by medicine liquid heating to 60 DEG C.
6. silver plating liquid predissolve technique as claimed in claim 5, it is characterized in that, it is provided with the first filter in the side of described medicinal liquid dissolving tank, the entrance of the first filter is connected with medicinal liquid circulation fluid first outlet of medicinal liquid dissolving tank lower end by the road, the outlet of the first filter by the road, valve be connected with the inlet of medicinal liquid circulating pump, the liquid outlet of medicinal liquid circulating pump is connected with the circulation fluid import of medicinal liquid dissolving tank upper end by the road.
7. silver plating liquid predissolve technique as claimed in claim 6, it is characterized in that, it is provided with the second filter between described medicinal liquid dissolving tank and chemical storage tank, the entrance of the second filter is connected with circulation fluid second outlet of medicinal liquid dissolving tank lower end by the road, the outlet of the second filter is by the road, the inlet of valve and the second filter connects, the liquid outlet of the second filter is connected with the medicinal liquid import of chemical storage tank upper end by the road, it is additionally provided with medicine liquid outlet in the lower end of chemical storage tank, is connected to drain pipe and valve in exit.
8. silver plating liquid predissolve technique as claimed in claim 1, it is characterised in that be provided with liquid level buoy in medicinal liquid titration groove in described S6 step.
9. silver plating liquid predissolve technique as claimed in claim 1, it is characterized in that, described S6 walks herb liquid by being directed in medicinal liquid titration groove in chemical storage tank and adopting medicinal liquid draw-off pump to import, or adopt the height fall between chemical storage tank and medicinal liquid titration groove to be imported by pipeline and valve, or by manually being imported by transfer container.
10. the silver plating liquid predissolve technique as described in any one in claim 4 to 9, it is characterized in that, described valve is electromagnetic valve, described heater, circulating pump, medicinal liquid draw-off pump, titration dosing pump, electromagnetic valve, temperature sensor and liquid level sensor are all connected with PLC, are then added in electroplating bath after molten in advance for medicinal liquid by PLC.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000160399A (en) * | 1998-12-02 | 2000-06-13 | Ebara Corp | Plating device |
| CN1786294A (en) * | 2004-12-11 | 2006-06-14 | 鸿富锦精密工业（深圳）有限公司 | Electroplating bath device and method of automatic supplementing liquid |
| CN102995096A (en) * | 2012-11-05 | 2013-03-27 | 江苏三鑫电子有限公司 | Automatic electroplating solution feeding system and automatic electroplating solution feeding method |
| CN103290462A (en) * | 2013-06-27 | 2013-09-11 | 昆山同心表面科技有限公司 | Automatic plating solution adding machine |
-
2013
- 2013-12-31 CN CN201310747217.4A patent/CN103741199B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000160399A (en) * | 1998-12-02 | 2000-06-13 | Ebara Corp | Plating device |
| CN1786294A (en) * | 2004-12-11 | 2006-06-14 | 鸿富锦精密工业（深圳）有限公司 | Electroplating bath device and method of automatic supplementing liquid |
| CN102995096A (en) * | 2012-11-05 | 2013-03-27 | 江苏三鑫电子有限公司 | Automatic electroplating solution feeding system and automatic electroplating solution feeding method |
| CN103290462A (en) * | 2013-06-27 | 2013-09-11 | 昆山同心表面科技有限公司 | Automatic plating solution adding machine |
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| CN103741199A (en) | 2014-04-23 |
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Effective date of registration: 20211008 Address after: No. 988, Jinyuan Road, Yinzhou investment and entrepreneurship center, Ningbo City, Zhejiang Province, 315105 Patentee after: NINGBO KANGQIANG ELECTRONICS Co.,Ltd. Address before: 214400 No. 3, Dongding Road, Jiangyin Economic Development Zone, Wuxi City, Jiangsu Province Patentee before: JIANGYIN KANGQIANG ELECTRONIC Co.,Ltd. |