CN204165930U - The electrolytic process self-operated measuring unit of chrome plating coating weight - Google Patents
The electrolytic process self-operated measuring unit of chrome plating coating weight Download PDFInfo
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- CN204165930U CN204165930U CN201420591300.7U CN201420591300U CN204165930U CN 204165930 U CN204165930 U CN 204165930U CN 201420591300 U CN201420591300 U CN 201420591300U CN 204165930 U CN204165930 U CN 204165930U
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- electrolytic tank
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- chrome plating
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Abstract
The utility model discloses a kind of electrolytic process self-operated measuring unit of chrome plating coating weight, namely this device comprises controller, two-way constant current source and electrolysis cells; Electrolysis cells adopts two-sided cell construction, sample holder is enclosed between two-sided electrolytic tank, the positive and negative two sides realizing sample automatically measures, realize sample self-closed, two-sided electrolytic tank liquid feeding by drive system and liquid feeding system, controller carries out the two-sided electrolytic process of sample by two-way constant current source and gathers the electric current of electrolytic process, current potential and time characteristic value.This device combines the advantage of existing chemical method and electrolytic process, by monitoring Faradaic current and voltage, the turning point that crome metal is all peeled off can be measured, then obtain the coating weight of chrome plating according to Faraday's law crome metal computing formula, thus improve precision and the speed of the measurement of chrome plating coating weight.
Description
Technical field
The utility model relates to a kind of electrolytic process self-operated measuring unit of chrome plating coating weight.
Background technology
Adopt constant-current electrolysis process in chrome plating manufacture, generate uniform crome metal coating coating at surface of steel plate, the quality of its coating directly affects the performances such as the corrosion resistance of chrome plating, resistance to SO_2 and covering with paint property.For inspection chrome plating quality, usually all to measure the weight of crome metal coating.Therefore the crome metal coating weight on rapid and accurate determination chrome plating surface, for improving technology controlling and process level and ensureing that product quality has great importance.
In existing chrome plating, the measuring method of crome metal has diphenylcarbazide spectrophotometric method, electrolytic process and x-ray fluorescence method.The standard of foundation is respectively JISG3315:2008 " chromium plating tin-free steel ", ASTM A657M 03 " once cold rolling, secondary cold-rolling electrodeposited chromium product standard specification ", EN10202:2001 " cold rolling electroplating tin and electrodeposited chromium steel plate " and ISO11950:1995 " cold rolling electroplating chromium/chromated oxide clad steel sheet ".
In the measuring method of electrolytic process, standard is only limitted to the mensuration of crome metal coating.Take sample as anode, platinum is negative electrode, carries out electrolysis, draws electrolytic reaction terminal according to sample with the time dependent curve of the potential difference (PD) between contrast electrode, thus obtains the electricity needed for crome metal dissolving.Introduction on Standard crome metal detects the structure in electrolysis loop and the condition of electrolysis, but also not to have at present clear and definite to be designed for the actual measuring instrument detected of industry.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of electrolytic process self-operated measuring unit of chrome plating coating weight, this measurement mechanism utilizes electrolytic process to implement to measure to chrome plating coating weight, the precision that the electrolytic process that improve chrome plating surface metal chrome plating weight is measured and speed, providing foundation for improving chrome plating plating process, ensure that the quality of production of chrome plating product.
For solving the problems of the technologies described above, the electrolytic process self-operated measuring unit of the utility model chrome plating coating weight comprises controller, two-way constant current source and electrolysis cells; Described electrolysis cells comprises pedestal, two-sided electrolytic tank, drive system and liquid feeding system;
Described two-sided electrolytic tank is the monomer electrolytic tank that two openends are oppositely arranged, one of them monomer electrolytic tank is stationary electrolysis groove and is secured by bolts on described pedestal, another monomer electrolytic tank is mobile electrolytic tank and is moved by the chute being located at described pedestal, described mobile electrolytic tank forms two-sided electrolytic tank when moving to stationary electrolysis groove and end face is provided with input port, each monomer electrolytic tank described is respectively equipped with negative electrode and contrast electrode and the O-ring seal for closing certain Area of Sample during electrolysis, and described stationary electrolysis groove is provided with anode;
Described drive system comprises the cylinder solenoid valve and push rod of being located at described pedestal, and described cylinder solenoid valve controls described push rod action, and described push rod connects described mobile electrolytic tank and drives mobile electrolytic tank to move along described pedestal chute;
Described liquid feeding system comprises fluid filling pump, liquid-feeding tube, seal cup and run-down pipe, described liquid-feeding tube is communicated with described two monomer electrolytic tanks respectively and connects electrolytic solution storage tank through described fluid filling pump, described seal cup is located at below described two-sided electrolytic tank, and described run-down pipe one end is located at described two monomer electrolytic tank tops, the other ends and is connected described seal cup;
Described controller signals output terminal connects the signal input part of described two-way constant current source and drive system respectively, described two-way constant current source exports the Faradaic current of sample, described drive system controls the folding of described two-sided electrolytic tank, and described controller gathers the electric current of sample electrolytic process, current potential and time characteristic value.
Further, described anode is the probe being located at described stationary electrolysis groove end face, after sample drops into from two-sided electrolytic tank input port, and described probes touch sample.
Further, the negative electrode in described two-sided electrolytic tank is platinum wire negative electrode.
Further, the adjacent side of described stationary electrolysis groove and mobile electrolytic tank is located at respectively by described O-ring seal.
Because the electrolytic process self-operated measuring unit of the utility model chrome plating coating weight have employed technique scheme, namely this device comprises controller, two-way constant current source and electrolysis cells; Electrolysis cells adopts two-sided cell construction, sample holder is enclosed between two-sided electrolytic tank, the positive and negative two sides realizing sample automatically measures, realize sample self-closed, two-sided electrolytic tank liquid feeding by drive system and liquid feeding system, controller carries out the two-sided electrolytic process of sample by two-way constant current source and gathers the electric current of electrolytic process, current potential and time characteristic value.This device combines the advantage of existing chemical method and electrolytic process, by monitoring Faradaic current and voltage, the turning point that crome metal is all peeled off can be measured, then obtain the coating weight of chrome plating according to Faraday's law crome metal computing formula, thus improve precision and the speed of the measurement of chrome plating coating weight.
Accompanying drawing explanation
Below in conjunction with drawings and embodiments, the utility model is described in further detail:
Fig. 1 is the electrolytic process self-operated measuring unit schematic diagram of the utility model chrome plating coating weight;
Fig. 2 is the schematic diagram of two-sided electrolytic tank in this measurement mechanism.
Embodiment
Electrolytic process self-operated measuring unit as Fig. 1 and Fig. 2 the utility model chrome plating coating weight comprises controller 1, two-way constant current source 2 and electrolysis cells; Described electrolysis cells comprises pedestal 3, two-sided electrolytic tank, drive system and liquid feeding system;
Described two-sided electrolytic tank is the monomer electrolytic tank that two openends are oppositely arranged, one of them monomer electrolytic tank is stationary electrolysis groove 4 and is secured by bolts on described pedestal 3, another monomer electrolytic tank is mobile electrolytic tank 5 and is moved by the chute being located at described pedestal 3, described mobile electrolytic tank 5 forms two-sided electrolytic tank when moving to stationary electrolysis groove 4 and end face is provided with input port 6, each monomer electrolytic tank described is respectively equipped with negative electrode 41, 51 and contrast electrode 42, 52 and O-ring seal 43 for closing certain sample 10 area during electrolysis, 53, described stationary electrolysis groove is provided with anode,
Described drive system comprises the cylinder solenoid valve 7 and push rod 8 of being located at described pedestal 3, and described cylinder solenoid valve 7 controls the action of described push rod 8, and described push rod connects described mobile electrolytic tank 5 and drives mobile electrolytic tank 5 to move along described pedestal 3 chute;
Described liquid feeding system comprises fluid filling pump 11, liquid-feeding tube 12, seal cup 13 and run-down pipe 14, described liquid-feeding tube 12 is communicated with described two monomer electrolytic tanks respectively and connects electrolytic solution storage tank 15 through described fluid filling pump 11, described seal cup 13 is located at below described two-sided electrolytic tank, and described two monomer electrolytic tank tops are located in described run-down pipe 14 one end, the other end connects described seal cup 13;
Described controller 1 signal output part connects the signal input part of described two-way constant current source 2 and drive system respectively, described two-way constant current source 2 exports the Faradaic current of sample, described drive system controls the folding of described two-sided electrolytic tank, and described controller 2 gathers the electric current of sample electrolytic process, current potential and time characteristic value.
Further, described anode 9 for being located at the probe of described stationary electrolysis groove 4 end face, after sample 10 drops into from two-sided electrolytic tank input port 6, described probes touch sample 10.
Further, the negative electrode 41,42 in described two-sided electrolytic tank is platinum wire negative electrode.
Further, the adjacent side of described stationary electrolysis groove 4 and mobile electrolytic tank 5 is located at respectively by described O-ring seal 43,53.
When chrome plating coating weight is measured, sample is put into two-sided electrolytic tank through input port, controller sends instruction, the cylinder solenoid valve action of drive system also drives mobile electrolytic tank to move along the chute of pedestal by push rod, until mobile electrolytic tank and stationary electrolysis groove close up and clamp sample, by the O-ring seal being embedded in stationary electrolysis groove and mobile electrolytic tank adjacent side, the sample in the middle of it is closed, thus, sample just, reverse side constitutes two electrolytic cells with mobile electrolytic tank and stationary electrolysis groove respectively, probes touch sample is as the shared electrolytic anode of two electrolytic cells, the contrast electrode of mobile electrolytic tank and stationary electrolysis groove is as the zero potential of output potential, liquid feeding system injects electrolytic solution by fluid filling pump in two-sided electrolytic tank, controller triggers two-way constant current source and starts electrolytic reaction process, this process middle controller gathers the current i of electrolytic reaction, the characteristic values such as current potential u and time t, when there is not marked change to current potential u in chrome plating coating electrolysis stripping, measure and automatically stop, by drive system, mobile electrolytic tank is resetted, two-sided electrolytic tank is opened, electrolytic solution is disposed in electrolytic solution storage tank, take out sample, by the current i of the electrolytic reaction that controller gathers, the characteristic value input computing machines such as current potential u and time t carry out data processing, electrolytic curve is found the electrolysis time t that marked change do not occur current potential u moment t ' is crome metal, the electrolysis time Δ T of chrome plating crome metal is obtained according to the electrolytic process endpoint rule of crome metal, according to Faraday's law crome metal computing formula: Cr=0.8981* t*i/A obtains crome metal coating weight, unit is mg/m
2, in formula 0.8981 for crome metal dielectric constants, i be Faradaic current, A is sample electrolysis area, namely sample by O-ring seal around area.
This device is by two-sided electrolytic tank grip seal sample, adopt two-way constant current source to carry out electrolytic process electrolysis stripping to the pro and con of sample simultaneously, the characteristic value that the crome metal electrolytic process on positive and negative for chrome plating two sides is reacted is inputed in computing machine, obtain the electrolytic curve on positive and negative two sides, thus realize the automatic measurements and calculations of the crome metal coating of chrome plating.
Claims (4)
1. an electrolytic process self-operated measuring unit for chrome plating coating weight, is characterized in that: this measurement mechanism comprises controller, two-way constant current source and electrolysis cells; Described electrolysis cells comprises pedestal, two-sided electrolytic tank, drive system and liquid feeding system;
Described two-sided electrolytic tank is the monomer electrolytic tank that two openends are oppositely arranged, one of them monomer electrolytic tank is stationary electrolysis groove and is secured by bolts on described pedestal, another monomer electrolytic tank is mobile electrolytic tank and is moved by the chute being located at described pedestal, described mobile electrolytic tank forms two-sided electrolytic tank when moving to stationary electrolysis groove and end face is provided with input port, each monomer electrolytic tank described is respectively equipped with negative electrode and contrast electrode and the O-ring seal for closing certain Area of Sample during electrolysis, and described stationary electrolysis groove is provided with anode;
Described drive system comprises the cylinder solenoid valve and push rod of being located at described pedestal, and described cylinder solenoid valve controls described push rod action, and described push rod connects described mobile electrolytic tank and drives mobile electrolytic tank to move along described pedestal chute;
Described liquid feeding system comprises fluid filling pump, liquid-feeding tube, seal cup and run-down pipe, described liquid-feeding tube is communicated with described two monomer electrolytic tanks respectively and connects electrolytic solution storage tank through described fluid filling pump, described seal cup is located at below described two-sided electrolytic tank, and described run-down pipe one end is located at described two monomer electrolytic tank tops, the other ends and is connected described seal cup;
Described controller signals output terminal connects the signal input part of described two-way constant current source and drive system respectively, described two-way constant current source exports the Faradaic current of sample, described drive system controls the folding of described two-sided electrolytic tank, and described controller gathers the electric current of sample electrolytic process, current potential and time characteristic value.
2. the electrolytic process self-operated measuring unit of chrome plating coating weight according to claim 1, is characterized in that: described anode is the probe being located at described stationary electrolysis groove end face, after sample drops into from two-sided electrolytic tank input port, and described probes touch sample.
3. the electrolytic process self-operated measuring unit of chrome plating coating weight according to claim 1, is characterized in that: the negative electrode in described two-sided electrolytic tank is platinum wire negative electrode.
4. the electrolytic process self-operated measuring unit of chrome plating coating weight according to claim 1, is characterized in that: the adjacent side of described stationary electrolysis groove and mobile electrolytic tank is located at respectively by described O-ring seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420591300.7U CN204165930U (en) | 2014-10-14 | 2014-10-14 | The electrolytic process self-operated measuring unit of chrome plating coating weight |
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| CN201420591300.7U CN204165930U (en) | 2014-10-14 | 2014-10-14 | The electrolytic process self-operated measuring unit of chrome plating coating weight |
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| CN204165930U true CN204165930U (en) | 2015-02-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109030605A (en) * | 2018-08-30 | 2018-12-18 | 武汉钢铁有限公司 | The determination method of chrome plating surface metal chromium content height |
-
2014
- 2014-10-14 CN CN201420591300.7U patent/CN204165930U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109030605A (en) * | 2018-08-30 | 2018-12-18 | 武汉钢铁有限公司 | The determination method of chrome plating surface metal chromium content height |
| CN109030605B (en) * | 2018-08-30 | 2020-08-04 | 武汉钢铁有限公司 | Method for judging metal chromium content on surface of chromium plated plate |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150218 Termination date: 20201014 |
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| CF01 | Termination of patent right due to non-payment of annual fee |