CN103539238A - Method and device for purifying washing water after electroless nickel plating carried out on plastic workpiece - Google Patents
Method and device for purifying washing water after electroless nickel plating carried out on plastic workpiece Download PDFInfo
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- CN103539238A CN103539238A CN201310509456.6A CN201310509456A CN103539238A CN 103539238 A CN103539238 A CN 103539238A CN 201310509456 A CN201310509456 A CN 201310509456A CN 103539238 A CN103539238 A CN 103539238A
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- washing water
- nickel plating
- hydrogen peroxide
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- electroless nickel
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Abstract
The invention discloses a method for purifying washing water after electroless nickel plating carried out on a plastic workpiece. The method for purifying washing water after electroless nickel plating carried out on the plastic workpiece comprises the following steps: titrating hydrogen peroxide into washing water once in a washing water tank after electroless nickel plating carried out on the plastic workpiece, wherein titer is 120-150g hydrogen peroxide per cubic meter of water and the pH value of the washing water is controlled to be 7-9; uniformly introducing compressed air after oil-water separation is carried out to the bottom of the washing water. A device for purifying washing water after electroless nickel plating carried out on the plastic workpiece is provided with a washing water tank after electroless nickel plating carried out on the plastic workpiece, a hydrogen peroxide storage tank is arranged above the washing water tank, a liquid guide tube communicated with the washing water tank is connected with the hydrogen peroxide storage tank, and a first valve is arranged on the liquid guide tube; an air guide tube is distributed at the bottom of the washing water tank, multiple vent holes with the center distance of 120mm are formed in the air tube, and a second valve is arranged on the air guide tube.
Description
Technical field
The present invention relates to a kind of method for purifying water and device, especially a kind of remarkable reduction purifies cost, improve the quality of products and the plastics part chemical nickel plating of production efficiency after rinse water purifying method and device.
Background technology
In electroplate technology, in rinse water or cleaning water system, often there is the situation of microorganism (bacterium algae) raised growth breeding, the microorganism viscosity mud that the amount reproduction of microorganism will produce excess is deposited on equipment surface or electroplating parts surface, not only can cause the deterioration of electroplating washing water, also can directly affect the quality on electrolytic coating surface, produce the multiple plating flaws such as coating particulate state, mottled, recess, directly endanger thus the normal operation of Electroplating Production.
Control one of effective, the most the most frequently used method of microorganism growth in electroplating washing water and in rinse water, add biocide exactly.Because electroplate liquid is different, in rinse water, contained element is not identical yet, therefore, existing biocide can not be common to all electroplating washing waters, if selected sterilant is unreasonable, just can only kill the microorganism on foundry loam or algal layer surface, the microorganism that deep layer is not killed can continue again procreation growth under condition of compatibility.
After plastics (ABS) workpiece chemical nickel plating, need equally water to clean, general automatic production line is all provided with four continuous cleaning sinks, and the volume of cleaning sink is equal 32 cubic metres of 1200 * 800 * 3300().Owing to not having good purifying method for rinse water at present, to such an extent as to the incidence of above-mentioned plating flaw is higher, even if it is all of no avail to change rinse water every day, when working temperature gets involved 15 ~ 23 ℃, the repair rate of electroplating parts is up to 40 ~ 50% left and right, strengthen the manufacturing cost of product, affected the production efficiency of product.
Summary of the invention
The present invention is in order to solve the existing above-mentioned technical problem of prior art, provide a kind of remarkable reduction purify cost, improve the quality of products and the plastics part chemical nickel plating of production efficiency after rinse water purifying method and device.
Technical solution of the present invention is: rinse water purifying method after a kind of plastics part chemical nickel plating, it is characterized in that every seven days to hydrogen peroxide of titration in the rinse water of cleaning sink after plastics part chemical nickel plating, titer is in every cubic metre of water, to drip the hydrogen peroxide of 120 ~ 150g concentration 50%, the pH value of simultaneously controlling rinse water is 7 ~ 9, and imports the pressurized air after oily water separation to rinse water bottom even.
Rinse water purifying method device after a kind of above-mentioned plastics part chemical nickel plating, be provided with the cleaning sink after plastics part chemical nickel plating, above cleaning sink, be provided with hydrogen peroxide packing groove, be connected to hydrogen peroxide packing groove the catheter that passes into cleaning sink, the first valve is installed on catheter; Bottom at described cleaning sink is furnished with air lead, and above air lead, being processed with between centers is a plurality of production wells of 120mm, is provided with the second valve on air lead.
The present invention splashes into hydrogen peroxide in the rinse water after plastics part chemical nickel plating, imports the pressurized air after oily water separation to rinse water bottom even simultaneously.The pressurized air importing can play strong stirring action in rinse water, can make the hydrogen peroxide biocide that the drips any position in cleaning sink all play a role, improve its ability of killing livestock, can thoroughly kill the microorganism of foundry loam or algal layer surface and deep layer, the microorganism that can rapidly workpiece surface have been generated strips down, and guarantees electroplating quality.Application the present invention, monthly only needs to change twice rinse water, has greatly saved water consumption, and product repair rate is reduced to 4 ~ 6%, can significantly reduce purification cost, improve the quality of products and production efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
Embodiment
Device used in the present invention is as shown in Figure 1: be provided with the cleaning sink 1 after size plastics part chemical nickel plating same as the prior art, above cleaning sink 1, fix the hydrogen peroxide packing groove 2 that can add a cover, be connected to hydrogen peroxide packing groove 2 the plastics catheter 3 that passes into cleaning sink 1, the first valve 4 is installed on catheter 3; In the bottom of described cleaning sink 1, be furnished with the air lead 5 of stainless steel φ 25, above air lead 5, be processed with a plurality of φ 2 production wells 6 that between centers is 120mm, on the air lead 5 outside being positioned at cleaning sink 1, be provided with the second valve 7.
Purifying method of the present invention be every seven days to hydrogen peroxide of titration in rinse water after plastics part chemical nickel plating, and import the pressurized air after oily water separation to rinse water bottom even.During use, the hydrogen peroxide that the interior splendid attire concentration of hydrogen peroxide packing groove 2 is 50%, air lead 5 joins with pneumatic accumulator, is the pressurized air through oily water separation in pneumatic accumulator.Open the first valve 4, the second valve 7, can realize to titration 50% hydrogen peroxide in the rinse water of cleaning sink 1, air is imported to the bottom of rinse water in rinse bath 1, pressurized air discharges from production well 6 simultaneously, and airflow plays stirring action in rinse water.Titer is in every cubic metre of water, to drip the hydrogen peroxide of 120 ~ 150g concentration 50%, and the pH value of usable acid or alkali control rinse water is 7 ~ 9 simultaneously.
Claims (2)
1. rinse water purifying method after a plastics part chemical nickel plating, it is characterized in that every seven days to hydrogen peroxide of titration in the rinse water of cleaning sink after plastics part chemical nickel plating, titer is in every cubic metre of water, to drip the hydrogen peroxide of 120 ~ 150g concentration 50%, the pH value of simultaneously controlling rinse water is 7 ~ 9, and imports the pressurized air after oily water separation to rinse water bottom even.
2. a rinse water purifying method device after plastics part chemical nickel plating as claimed in claim 1, it is characterized in that: be provided with the cleaning sink (1) after plastics part chemical nickel plating, in cleaning sink (1) top, be provided with hydrogen peroxide packing groove (2), be connected to hydrogen peroxide packing groove (2) catheter (3) that passes into cleaning sink (1), the first valve (4) is installed on catheter (3); In the bottom of described cleaning sink (1), be furnished with air lead (5), air lead (5) is processed with a plurality of production wells (6) that between centers is 120mm above, is provided with the second valve (7) on air lead (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310509456.6A CN103539238A (en) | 2013-10-25 | 2013-10-25 | Method and device for purifying washing water after electroless nickel plating carried out on plastic workpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310509456.6A CN103539238A (en) | 2013-10-25 | 2013-10-25 | Method and device for purifying washing water after electroless nickel plating carried out on plastic workpiece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103539238A true CN103539238A (en) | 2014-01-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310509456.6A Pending CN103539238A (en) | 2013-10-25 | 2013-10-25 | Method and device for purifying washing water after electroless nickel plating carried out on plastic workpiece |
Country Status (1)
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| CN (1) | CN103539238A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55109490A (en) * | 1979-01-29 | 1980-08-22 | Tsukuba Daigaku | Treating method of cyan-containing waste water |
| CN1769543A (en) * | 2005-10-17 | 2006-05-10 | 海宁市海整整流器有限公司 | Water comprehensive utilization technology for cleaning electroplating nickel |
| CN101392402A (en) * | 2008-10-16 | 2009-03-25 | 海宁市海整整流器有限公司 | Electroplating washing water zero discharge method |
| CN101838047A (en) * | 2010-05-21 | 2010-09-22 | 上海凡清环境工程有限公司 | Fiber bundle and hanging filler biological contact reaction method and device |
| CN101837246A (en) * | 2010-05-28 | 2010-09-22 | 上海凡清环境工程有限公司 | Membrane component cleaning method and membrane component water purifying device |
| CN102173486A (en) * | 2011-03-04 | 2011-09-07 | 河北省电力研究院 | Sterilizing and algae removal process for opened recirculation cooling water system |
-
2013
- 2013-10-25 CN CN201310509456.6A patent/CN103539238A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55109490A (en) * | 1979-01-29 | 1980-08-22 | Tsukuba Daigaku | Treating method of cyan-containing waste water |
| CN1769543A (en) * | 2005-10-17 | 2006-05-10 | 海宁市海整整流器有限公司 | Water comprehensive utilization technology for cleaning electroplating nickel |
| CN101392402A (en) * | 2008-10-16 | 2009-03-25 | 海宁市海整整流器有限公司 | Electroplating washing water zero discharge method |
| CN101838047A (en) * | 2010-05-21 | 2010-09-22 | 上海凡清环境工程有限公司 | Fiber bundle and hanging filler biological contact reaction method and device |
| CN101837246A (en) * | 2010-05-28 | 2010-09-22 | 上海凡清环境工程有限公司 | Membrane component cleaning method and membrane component water purifying device |
| CN102173486A (en) * | 2011-03-04 | 2011-09-07 | 河北省电力研究院 | Sterilizing and algae removal process for opened recirculation cooling water system |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140129 |