CN102998353A - Automatic sample treatment test apparatus for determining lead in tin plate plating layer - Google Patents
Automatic sample treatment test apparatus for determining lead in tin plate plating layer Download PDFInfo
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- CN102998353A CN102998353A CN2011102741828A CN201110274182A CN102998353A CN 102998353 A CN102998353 A CN 102998353A CN 2011102741828 A CN2011102741828 A CN 2011102741828A CN 201110274182 A CN201110274182 A CN 201110274182A CN 102998353 A CN102998353 A CN 102998353A
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Abstract
The present invention relates to a plating layer test of a tin plate, specifically to an automatic sample treatment test apparatus for determining lead in a tin plate plating layer. The apparatus comprises: an electrolysis tank, wherein the electrolysis tank is filled with a stripping solution and is provided with a tin plate requiring determination; a sealing ring inserted and sleeved inside the electrolysis tank; a pneumatic sealing mechanism, wherein the pneumatic sealing mechanism comprises a pneumatic valve and a sealing execution rod; electrodes, wherein platinum wire is wound inside the electrolysis tank to be adopted as a work electrode, a silver electrode or a calomel electrode inserted into the electrolysis tank is adopted as a reference electrode, and a titanium alloy pin connected with the tin plate requiring determination is adopted as a sample electrode; a sample collection device communicated with the electrolysis tank; a set of liquid adding system, wherein the system comprises a chemical tank and a peristaltic pump; a set of flushing system, wherein the system comprises a distilled water tank, a pipeline connected with the electrolysis tank, and sprinklers; and a PLC control system for controlling switches for connecting the peristaltic pump, the pneumatic valve and a sample collector and a flushing switch. With the present invention, lead determination automation in the tin plate plating layer can be achieved, and determination precision and work efficiency can be improved.
Description
Technical field
The present invention relates to the coating test of tin plate, relate in particular to the plumbous test unit of measuring in the tin plate coating.
Background technology
Tin plate is widely used in packaging material for food; because the safety of packaging material for food and container is the important component part of food security; various countries have formulated many safety management rules, standard and detailed rules for the implementation that relate to the packaging for foodstuff metal material in order to protect national health, to give a impetus to trade.Beverage can, food cans user's pay attention to day by day tin plate on food security show or potential impact, as with heavy metal (Pb, Cd, the Cr of the tin plate tin layer of Food Contact
6+Deng) necessarily can not " jeopardize health " to the transfer amount of food, the migration amount is limited the quantity of less than maximum.Stipulate that lead can not surpass 100mg/kg in the tin plate coating in European Union's standard " EN10333-2005 " tin plate that packing contacts with Food ﹠ Drink with steel and humans and animals " ".
European Union's standard " EN10333-2005 " tin plate that packing contacts with Food ﹠ Drink with steel and humans and animals " appendix A " has proposed to adopt electrolytic process to peel off the tin layer of tin plate, and with the method for the content of aas determination plumbous (Pb), the process of the method sample pre-treatments is: sample seals non-measure portion with coating, and be processed into certain shape, be positioned on the steel specimen mounting, then put into the 150ml beaker, add 50mL, concentration is the hydrochloric acid of 2mol/L, place platinum working electrode and contrast electrode, connect circuit, at 8mA/cm
2Carry out electrolysis stripping under the current density, open the registering instrument record and peel off terminal point, collect stripper, be deployed into and measure required test solution.The method sample pre-treatments overall process need to manually be finished, sample preparation complexity and consuming time, and in coating sealing bake process, may cause plumbous migration, affects measuring accuracy.
Summary of the invention
The present invention is intended to address the aforementioned drawbacks, and plumbous working sample processing automatic test equipment in a kind of tin plate coating is provided.The present invention realizes the robotization that plumbous working sample is processed in the tin plate coating, improves measuring accuracy and work efficiency.
For addressing the above problem, plumbous working sample is processed automatic test equipment in a kind of tin plate coating, and it comprises:
An electrolytic tank, it is the container of an opening, fills stripper in the groove and tin plate to be measured is housed;
An O-ring seal, it is nested in the electrolytic tank, and contacts with tin plate plate face to be measured;
One pneumatic sealing mechanism, it comprises that a pneumatic valve and one are used for the sealing of close encapsulation circle, tin plate to be measured and carry out bar;
One cover electrode is wrapped in slot electrode inside as working electrode with platinum wire, and as contrast electrode, a telescopic titanium alloy pin connects the sample electrode of tin plate to be measured with the silver electrode of inserting electrolytic tank or mercurous chloride electrode;
A sample divider, described electrolytic tank is communicated with this gatherer by corresponding pipeline and switch;
One cover liquid feeding system, it comprises a chemical tank and is communicated with the peristaltic pump of electrolytic tank;
One cover rinse-system, it comprises distillation tank and the pipeline that is connected into electrolytic tank, pipe end is with the spray head towards tin plate to be measured;
One PLC control system, switch and the flush switch of the described peristaltic pump of its control linkage, pneumatic valve and sample divider.
Plumbous working sample is processed automatic test equipment in the described tin plate coating, and described tin plate to be measured bottom also is provided with a backstay.
The present invention only needs the sample of certain size is put into electrolytic tank, by computer control, finishes automatically that sample is peeled off, terminal point identification, stripper collecting processes.Because adopting mechanical principle seals sample, solved and adopted coating to seal in the time of to have twice pollution of sample and a sample baking paint problems such as lead generation migration in the method for European Union's standard " EN10333-2005 " tin plate that packing contact with Food ﹠ Drink with steel and humans and animals " appendix A ", improve the plumbous precision of measuring in the tin plate coating, had wide application prospect in fields such as Tinplate Production, quality control and Third Party Authentications.
Description of drawings
The present invention is further illustrated below in conjunction with accompanying drawing:
Fig. 1 is synoptic diagram of the present invention.
Embodiment
As shown in Figure 1, plumbous working sample is processed automatic test equipment in a kind of tin plate coating of the present invention, and it comprises:
An electrolytic tank 1, it is the container of an opening, fills stripper in the groove and tin plate 2 to be measured is housed;
An O-ring seal 12, it is nested in the electrolytic tank 1, and contacts with tin plate 2 plate faces to be measured; Tin plate to be measured 2 bottoms also are provided with a backstay 3;
One pneumatic sealing mechanism, it comprises that a pneumatic valve 4 and one are used for the sealing of close encapsulation circle, tin plate to be measured and carry out bar 5;
One cover electrode is wrapped in electrolytic tank inside as working electrode 6 with platinum wire, and as contrast electrode, a telescopic titanium alloy pin connects the sample electrode 8 of tin plate 2 to be measured with the silver electrode of inserting electrolytic tank 1 or mercurous chloride electrode 7;
A sample divider 9, described electrolytic tank 1 is communicated with this gatherer by corresponding pipeline and switch;
One cover liquid feeding system, it comprises a chemical tank 10 and is communicated with the peristaltic pump 11 of electrolytic tank 1;
One cover rinse-system, it comprises distillation tank 12 and the pipeline that is connected into electrolytic tank 1, pipe end is with the spray head 13 towards tin plate to be measured; With the inner all cleanings of whole electrolytic tank, cleaning fluid is collected in the sample divider 9 by this spray head 13;
One PLC control system 14, switch and the flush switch of the described peristaltic pump 11 of its control linkage, pneumatic valve 4, sample divider 9.
Claims (2)
1. plumbous working sample is processed automatic test equipment in the tin plate coating, it is characterized in that it comprises:
An electrolytic tank, it is the container of an opening, fills stripper in the groove and tin plate to be measured is housed;
An O-ring seal, it is nested in the electrolytic tank, and contacts with tin plate plate face to be measured;
One pneumatic sealing mechanism, it comprises that a pneumatic valve and one are used for the sealing of close encapsulation circle, tin plate to be measured and carry out bar;
One cover electrode is wrapped in slot electrode inside as working electrode with platinum wire, and as contrast electrode, a telescopic titanium alloy pin connects the sample electrode of tin plate to be measured with the silver electrode of inserting electrolytic tank or mercurous chloride electrode;
A sample divider, described electrolytic tank is communicated with this gatherer by corresponding pipeline and switch;
One cover liquid feeding system, it comprises a chemical tank and is communicated with the peristaltic pump of electrolytic tank;
One cover rinse-system, it comprises distillation tank and the pipeline that is connected into electrolytic tank, pipe end is with the spray head towards tin plate to be measured;
One PLC control system, switch and the flush switch of the described peristaltic pump of its control linkage, pneumatic valve and sample divider.
According to claim 1 in the described tin plate coating plumbous working sample process automatic test equipment, it is characterized in that described tin plate to be measured bottom also is provided with a backstay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110274182.8A CN102998353B (en) | 2011-09-15 | 2011-09-15 | In tin plate coating, lead measures sample treatment automatic test equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110274182.8A CN102998353B (en) | 2011-09-15 | 2011-09-15 | In tin plate coating, lead measures sample treatment automatic test equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102998353A true CN102998353A (en) | 2013-03-27 |
| CN102998353B CN102998353B (en) | 2016-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110274182.8A Active CN102998353B (en) | 2011-09-15 | 2011-09-15 | In tin plate coating, lead measures sample treatment automatic test equipment |
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| CN (1) | CN102998353B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105699360A (en) * | 2014-11-27 | 2016-06-22 | 上海梅山钢铁股份有限公司 | Method for rapid determination of lead content of tin plate coating |
| CN109323913A (en) * | 2018-11-30 | 2019-02-12 | 红河州质量技术监督综合检测中心 | The measuring method of tin the amount of migration in tin food containers tool |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0180090A2 (en) * | 1984-10-30 | 1986-05-07 | International Business Machines Corporation | System and method for automatically monitoring and maintaining desired concentrations of metal plating baths |
| CN2529256Y (en) * | 2002-03-18 | 2003-01-01 | 刘文涛 | Washing device for electrolyzer of polarograph |
| CN201159727Y (en) * | 2008-02-29 | 2008-12-03 | 宝山钢铁股份有限公司 | Electrolyzing device for tin plate sheet detection |
| CN201207044Y (en) * | 2008-05-12 | 2009-03-11 | 福建标新易开盖集团有限公司 | Tinning content measuring instrument for tinplate |
| CN201662528U (en) * | 2010-04-15 | 2010-12-01 | 马三剑 | Water-quality pump online automatic monitoring device |
-
2011
- 2011-09-15 CN CN201110274182.8A patent/CN102998353B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0180090A2 (en) * | 1984-10-30 | 1986-05-07 | International Business Machines Corporation | System and method for automatically monitoring and maintaining desired concentrations of metal plating baths |
| CN2529256Y (en) * | 2002-03-18 | 2003-01-01 | 刘文涛 | Washing device for electrolyzer of polarograph |
| CN201159727Y (en) * | 2008-02-29 | 2008-12-03 | 宝山钢铁股份有限公司 | Electrolyzing device for tin plate sheet detection |
| CN201207044Y (en) * | 2008-05-12 | 2009-03-11 | 福建标新易开盖集团有限公司 | Tinning content measuring instrument for tinplate |
| CN201662528U (en) * | 2010-04-15 | 2010-12-01 | 马三剑 | Water-quality pump online automatic monitoring device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105699360A (en) * | 2014-11-27 | 2016-06-22 | 上海梅山钢铁股份有限公司 | Method for rapid determination of lead content of tin plate coating |
| CN109323913A (en) * | 2018-11-30 | 2019-02-12 | 红河州质量技术监督综合检测中心 | The measuring method of tin the amount of migration in tin food containers tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102998353B (en) | 2016-08-10 |
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Address after: 201900 Shanghai city Baoshan District Meipu Road No. 335 Applicant after: SHANGHAI BAOSTEEL INDUSTRY TECHNOLOGICAL SERVICE Co.,Ltd. Address before: 201900 Shanghai city Baoshan District Meipu Road No. 335 Applicant before: Shanghai Baosteel Industrial Inspection Co.,Ltd. Address after: 201900 Shanghai city Baoshan District Meipu Road No. 335 Applicant after: Shanghai Baosteel Industrial Inspection Co.,Ltd. Address before: 201900 Shanghai city Baoshan District Meipu Road No. 335 Applicant before: Shanghai Baosteel Industry Inspection Corp. |
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Free format text: CORRECT: APPLICANT; FROM: SHANGHAI BAOSTEEL INDUSTRIAL INSPECTION CO., LTD. TO: SHANGHAI BAOSTEEL INDUSTRY TECHNOLOGICAL SERVICE CO., LTD. Free format text: CORRECT: APPLICANT; FROM: SHANGHAI BAOSTEEL INDUSTRY INSPECTION CORP. TO: SHANGHAI BAOSTEEL INDUSTRIAL INSPECTION CO., LTD. |
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Address after: No. 3520 Tongji Road, Baoshan District, Shanghai, 201900 Patentee after: Baowu equipment Intelligent Technology Co.,Ltd. Address before: 201900, 335, Pu Pu Road, Shanghai, Baoshan District Patentee before: SHANGHAI BAOSTEEL INDUSTRY TECHNOLOGICAL SERVICE Co.,Ltd. |
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