CN103060868B

CN103060868B - Battery case barrel nickel plating troubleshooting technique

Info

Publication number: CN103060868B
Application number: CN201310025654.5A
Authority: CN
Inventors: 宋梅玲
Original assignee: ZHENG YUAN TECHNOLOGY POWER SUPPLY MATERIAL Co Ltd
Current assignee: Xinxiang Zhengyuan Electronic Materials Co. Ltd.
Priority date: 2013-01-21
Filing date: 2013-01-21
Publication date: 2016-05-04
Anticipated expiration: 2033-01-21
Also published as: CN103060868A

Abstract

The invention belongs to battery case barrel nickel plating technical field, disclose a kind of battery case barrel nickel plating troubleshooting technique. After battery case oil removing, pass through successively the cleaning of twice running water, acid-wash activation, washed with de-ionized water, lower groove is not yet electroplated and is occurred catastrophic failure, after pending fault is processed, then normal plating, goes out Jing San road washed with de-ionized water, post processing successively again after part, and its special feature is: lower groove is not yet electroplated and occurred catastrophic failure, after pending fault is processed, first go out the each 20 ~ 60s of Jian Jing tri-road washed with de-ionized water, then alkali neutralisation treatment, then through washed with de-ionized water 20 ~ 60s; Then return electroplate before the cleaning of twice running water, acid-wash activation, washed with de-ionized water, wherein in Acidwash solution, add low-foam wetting agents when acid-wash activation, electroplate by groove under normal process subsequently, normally go out part, normally carry out to post processing. Through inspection, through process modification of the present invention finished product after treatment, without bad order, adhesion is good, and the various nature and characteristics such as salt fog, Bluepoint all meet normal index.

Description

Battery case barrel nickel plating troubleshooting technique

Technical field

The invention belongs to battery case barrel nickel plating technical field, particularly a kind of battery case barrel nickel plating troubleshooting technique.

Background technology

At present, when battery case barrel nickel plating normally moves, its technological process is as shown in Figure 1: after battery case oil removing, first clean each 20 ~ 60s through twice running water, then at reagent hydrochloric acid (the HCL content of 20 ~ 40ml/l, %36～38) acid-wash activation certain hour (2A in solution, the following battery case 4 ~ 6min of 3A and 3A, SC type, C type, D type, F type battery case 8 ~ 10min), again through washed with de-ionized water 5 ~ 12s, lower groove is electroplated (electroplate liquid: 200-220g/L nickelous sulfate, 40-70g/L nickel chloride, 40-50g/L boric acid, pH value 4.4-4.6, the acid solution of temperature 50-55 degree, add 0.1ml/l to roll bright nickel plating 998-A brightener and 3 ~ 5ml/l rolls bright nickel plating softening agent) 3 hours, go out the each 20 ~ 60s of Jian Jing tri-road washed with de-ionized water, get product finally by post processing. postprocessing working procedures is as shown in Figure 3: first in the nitration mixture (citric acid and tartaric acid mass ratio 9:1) of 10g/L, bleach 4min, twice running water cleans each 20 ~ 60s, through the chromic acid passivation 4min of 20g/L, three road running water clean each 20 ~ 60s again, again through the sodium hydroxide solution neutralisation treatment 4min of 10 ~ 20g/L, the each 20 ~ 60s of three road washed with de-ionized water, use again 1 ~ 20ml/LSG6006A sealer to roll and seal 1 ~ 3min, the each 20 ~ 60s of three road washed with de-ionized water, finally by water dumping, oven dry, cooling, packaging). wherein, the deionized water relating in whole technical process all refers to the deionized water below 20US/CM.

But, in electroplating process, having many catastrophic failures, the damage of power failure, electric equipment facility is exactly one of them. If now battery case just descends coating bath by chance, general way is then electroplated (Fig. 1) by normal process after waiting for exactly troubleshooting more at present. So, will cause the serious consequence of " coating comes off ", product can only be scrapped processing. Analyze its reason, be because battery case after acid-wash activation, not plating in time, pollution is seriously flooded by liquid in its surface, Direct Electroplating again after certain interval of time, nickel metal with in the middle of cathode base just as there is one deck barrier film, cannot be bonded together very securely, cause adhesion bad, occur falling plating phenomenon.

Summary of the invention

Object of the present invention aims to provide a kind of finished product without bad order and the good battery case barrel nickel plating troubleshooting technique of adhesion.

For achieving the above object, the technical scheme that the present invention takes is as follows:

Battery case barrel nickel plating troubleshooting technique, after battery case oil removing, pass through successively the cleaning of twice running water, acid-wash activation, washed with de-ionized water, lower groove is not yet electroplated and is occurred catastrophic failure, after pending fault is processed, then normal plating, go out Jing San road washed with de-ionized water, post processing successively again after part, its special feature is: lower groove is not yet electroplated and occurred catastrophic failure, after pending fault is processed, first go out the each 20 ~ 60s of part Hou Jing tri-road washed with de-ionized water, then alkali neutralisation treatment, then through washed with de-ionized water 20 ~ 60s; Then return electroplate before the cleaning of twice running water, acid-wash activation, washed with de-ionized water, wherein in Acidwash solution, add low-foam wetting agents when acid-wash activation, normally electroplate subsequently, go out part to post processing and normally carry out.

When acid-wash activation, the reagent hydrochloric acid solution that the Acidwash solution of employing is 20 ~ 40ml/l; Alkali neutralisation treatment refers to: in the sodium hydroxide solution of mass concentration 10 ~ 20g/l, 9 ~ 10r/min rotates 1 ~ 2min.

In Acidwash solution, add the low-foam wetting agents that accounts for its quality 2/10000ths to 5/10000ths. In the present invention, commercial low-foam wetting agents all can.

The present invention has two technical essentials: the one, and the workpiece after breaking down out will carry out alkali neutralisation treatment from coating bath, guarantees surface of the work noresidue liquid, cleans up; The 2nd, acid-wash activation will add low-foam wetting agents, plays inhibition and fully wetting action. And technical solution of the present invention is under battery case, after coating bath, not yet to start to electroplate catastrophic failure just occurs, after pending fault is processed, no longer electroplate, and battery case is directly hung out to electroplating bath, improve processing according to above-mentioned two technical essentials, improvement is just then normally electroplated after finishing dealing with.

Through inspection, through process modification of the present invention finished product after treatment, without bad order, adhesion is good, and the various nature and characteristics such as salt fog, Bluepoint all meet normal index.

Brief description of the drawings

Fig. 1: battery case barrel nickel plating normal process and existing troubleshooting process chart.

Fig. 2: battery case barrel nickel plating troubleshooting process chart of the present invention.

Fig. 3: postprocessing working procedures flow chart.

Detailed description of the invention

When battery case barrel nickel plating moves as Fig. 1 normal process, after battery case oil removing, first clean each 20s through twice running water, then at reagent hydrochloric acid (the HCL content of 30ml/l, quality %36～38) acid-wash activation certain hour (2A in solution, the following battery case 6min of 3A and 3A, SC type, C type, D type, F type battery case 10min), again through washed with de-ionized water 10s, lower groove is electroplated (electroplate liquid: 210g/L nickelous sulfate, 55g/L nickel chloride, 48g/L boric acid, pH value 4.5, the acid solution that temperature 50 is spent, add 0.1ml/l to roll bright nickel plating 998-A brightener and 4ml/l rolls bright nickel plating softening agent) 3 hours, go out the each 20s of Jian Jing tri-road washed with de-ionized water, get product finally by post processing. postprocessing working procedures is as shown in Figure 3: first in the nitration mixture (citric acid and tartaric acid mass ratio 9:1) of 10g/L, bleach 4min, twice running water cleans each 20s, through the chromic acid passivation 4min of 20g/L, three road running water clean each 20s again, again through the sodium hydroxide solution neutralisation treatment 4min of 10g/L, the each 20s of three road washed with de-ionized water, roll and seal 2min, the each 20s of three road washed with de-ionized water with 10ml/LSG6006A sealer again, finally by water dumping 10min, oven dry 10min, cooling, packaging). wherein, the deionized water relating in whole technical process all refers to the deionized water below 20US/CM.

But in electroplating process of the present invention, under battery case, groove is not yet electroplated while there is catastrophic failure, after pending fault is processed, its technique is by carrying out shown in Fig. 2: no longer electroplate and first battery case hung out from coating bath, the each 20s of Jing San road washed with de-ionized water, then in the sodium hydroxide solution of mass concentration 10g/l, rotate 1min with 10r/min and carry out the guarantee of alkali neutralisation treatment clean the removing of battery case surfaces externally and internally residual liquid, then through washed with de-ionized water 20s; Then return and electroplate front twice washed with de-ionized water 20s, in the reagent hydrochloric acid solution of mass concentration 30ml/l, add subsequently 2/10000ths low-foam wetting agents TC-EHS(to be purchased from good friend Fine Chemical Co., Ltd of Zhangjagang City) carry out acid-wash activation, again after washed with de-ionized water 10s, then electroplate by groove under normal process, normally go out part, normally carry out to post processing.

Claims

1. battery case barrel nickel plating troubleshooting technique, after battery case oil removing, pass through successively the cleaning of twice running water, acid-wash activation, washed with de-ionized water, lower groove is not yet electroplated and is occurred catastrophic failure, after pending fault is processed, then normal plating, go out Jing San road washed with de-ionized water, post processing successively again after part, it is characterized in that: lower groove is not yet electroplated and occurred catastrophic failure, after pending fault is processed, first go out the each 20 ~ 60s of Jian Jing tri-road washed with de-ionized water, then alkali neutralisation treatment, then through washed with de-ionized water 20 ~ 60s; Then return electroplate before the cleaning of twice running water, acid-wash activation, washed with de-ionized water, wherein in Acidwash solution, add low-foam wetting agents when acid-wash activation, normally electroplate subsequently, go out part to post processing and normally carry out; When acid-wash activation, the reagent hydrochloric acid solution that the Acidwash solution of employing is 20 ~ 40mL/L; Alkali neutralisation treatment refers to: in the sodium hydroxide solution of mass concentration 10 ~ 20g/L, 9 ~ 10r/min rotates 1 ~ 2min.

2. battery case barrel nickel plating troubleshooting technique as claimed in claim 1, is characterized in that: in Acidwash solution, add the low-foam wetting agents that accounts for its quality 2/10000ths to 5/10000ths.