CN102998353B - In tin plate coating, lead measures sample treatment automatic test equipment - Google Patents
In tin plate coating, lead measures sample treatment automatic test equipment Download PDFInfo
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- CN102998353B CN102998353B CN201110274182.8A CN201110274182A CN102998353B CN 102998353 B CN102998353 B CN 102998353B CN 201110274182 A CN201110274182 A CN 201110274182A CN 102998353 B CN102998353 B CN 102998353B
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Abstract
The present invention relates to the coating test of tin plate.In a kind of tin plate coating, lead measures sample treatment automatic test equipment, and it includes: an electrolysis bath, fills stripper and equipped with tin plate to be measured in groove；One sealing ring, it is nested in electrolysis bath；One pneumatic sealing mechanism, it includes that a pneumatic operated valve and a closing perform bar；It is wrapped in inside slot electrode as working electrode using platinum wire, connects the sample electrode of tin plate to be measured using the silver electrode or calomel electrode inserting electrolysis bath as reference electrode, a titanium alloy pin；One sample divider, described electrolysis bath connects this catcher；A set of liquid feeding system, it includes a chemical tank and peristaltic pump；A set of rinse-system, it includes distilling tank and being connected into pipeline and the spray head of electrolysis bath；One PLC control system, it controls to connect described peristaltic pump, pneumatic operated valve and the switch of sample divider and flush switch.The present invention realizes lead in tin plate coating and measures automatization, improves certainty of measurement and work efficiency.
Description
Technical field
The present invention relates to the coating test of tin plate, particularly relate to the assay device that in tin plate coating, lead measures.
Background technology
Tin plate is widely used in packaging material for food; owing to the safety of packaging material for food and container is the important component part of food safety; various countries, in order to protect the health of its people, give a impetus to trade, have formulated many safety management regulation, standard and detailed rules for the implementation relating to packaging for foodstuff metal material.Beverage can, food cans user's pay attention to day by day tin plate food safety is shown or potential impact, such as heavy metal (Pb, Cd, Cr with the tin plate tin layers of Food Contact6 +Deng) necessarily " health can not be jeopardized " to the transfer amount of food, migration amount is less than maximum limitation.In EU criteria " EN10333-2005 " tin plate that packaging steel contacts with humans and animals Food & Drink " ", in regulation tin plate coating, lead not can exceed that 100mg/kg.
EU criteria " EN10333-2005 " tin plate that packaging steel contacts with humans and animals Food & Drink " appendix A " proposes the tin layers using electrolysis to peel off tin plate, and the method for the content with aas determination lead (Pb), the process of the method sample pre-treatments is: sample coating is partially enclosed by non-measured, and it is processed into certain shape, it is positioned on a steel specimen mounting, it is then placed in 150ml beaker, add 50mL, concentration is the hydrochloric acid of 2mol/L, place platinum working electrode and reference electrode, connect circuit, at 8mA/cm2Carry out electrolysis stripping under electric current density, open monitor record and peel off terminal, collect stripper, be deployed into the test solution needed for measurement.The method sample pre-treatments overall process needs to be accomplished manually, sample preparation is complicated and time-consuming, and in baking process closed by coating, may cause the migration of lead, affect certainty of measurement.
Summary of the invention
Present invention seek to address that drawbacks described above, it is provided that in a kind of tin plate coating, lead measures sample treatment automatic test equipment.The present invention realizes lead in tin plate coating and measures the automatization of sample treatment, improves certainty of measurement and work efficiency.
For solving the problems referred to above, in a kind of tin plate coating, lead measures sample treatment automatic test equipment, and it includes:
One electrolysis bath, it is the container of an opening, fills stripper and equipped with tin plate to be measured in groove；
One sealing ring, it is nested in electrolysis bath, and contacts with tin plate plate face to be measured；
One pneumatic sealing mechanism, it includes that a pneumatic operated valve and a closing for close encapsulation circle, tin plate to be measured perform bar；
A set of electrode, is wrapped in inside slot electrode as working electrode using platinum wire, and to insert the silver electrode of electrolysis bath or calomel electrode as reference electrode, a telescopic titanium alloy pin connects the sample electrode of tin plate to be measured；
One sample divider, described electrolysis bath connects this catcher by corresponding pipeline with switch；
A set of liquid feeding system, it includes a chemical tank and the peristaltic pump connecting electrolysis bath；
A set of rinse-system, it includes distilling tank and being connected into the pipeline of electrolysis bath, and pipe end is with the spray head towards tin plate to be measured；
One PLC control system, it controls to connect described peristaltic pump, pneumatic operated valve and the switch of sample divider and flush switch.
In described tin plate coating, lead measures sample treatment automatic test equipment, and described tin plate bottom to be measured is additionally provided with a location bar.
The sample of certain size only need to be put in electrolysis bath by the present invention, by computer control, is automatically finished sample stripping, terminal identification, stripper collecting processes.Owing to using theory of mechanics that sample is closed, solve and the method for EU criteria " EN10333-2005 " tin plate that packaging steel contacts with humans and animals Food & Drink " appendix A " uses coating close when there may be twice pollution of sample and sample baking paint the problems such as lead generation migration, improve lead measurement accuracy in tin plate coating, in fields such as Tinplate Production, quality control and Third Party Authentications, there is wide application prospect.
Accompanying drawing explanation
The present invention is further illustrated below in conjunction with the accompanying drawings:
Fig. 1 is schematic diagram of the present invention.
Detailed description of the invention
As it is shown in figure 1, lead measures sample treatment automatic test equipment in one tin plate coating of the present invention, it includes:
One electrolysis bath 1, it is the container of an opening, fills stripper and equipped with tin plate 2 to be measured in groove；
One sealing ring 12, it is nested in electrolysis bath 1, and contacts with tin plate 2 plate face to be measured；Tin plate 2 bottom to be measured is additionally provided with a location bar 3；
One pneumatic sealing mechanism, it includes that a pneumatic operated valve 4 and a closing for close encapsulation circle, tin plate to be measured perform bar 5；
A set of electrode, is wrapped in electrolyte bath as working electrode 6 using platinum wire, and to insert the silver electrode of electrolysis bath 1 or calomel electrode 7 as reference electrode, a telescopic titanium alloy pin connects the sample electrode 8 of tin plate 2 to be measured；
One sample divider 9, described electrolysis bath 1 connects this catcher by corresponding pipeline with switch；
A set of liquid feeding system, it includes a chemical tank 10 and the peristaltic pump 11 connecting electrolysis bath 1；
A set of rinse-system, it includes distilling tank 12 and being connected into the pipeline of electrolysis bath 1, and pipe end is with the spray head 13 towards tin plate to be measured；All being cleaned by whole electrolyte bath by this spray head 13, cleanout fluid is collected to sample divider 9；
One PLC control system 14, it controls to connect described peristaltic pump 11, pneumatic operated valve 4, the switch of sample divider 9 and flush switch.
Claims (2)
1. in a tin plate coating, lead measures sample treatment automatic test equipment, it is characterised in that it includes:
One electrolysis bath, it is the container of an opening, fills stripper and equipped with tin plate to be measured in groove；
One sealing ring, it is nested in electrolysis bath, and contacts with tin plate plate face to be measured；
One pneumatic sealing mechanism, it includes that a pneumatic operated valve and a closing for close encapsulation circle, tin plate to be measured perform bar；
A set of electrode, is wrapped in inside slot electrode as working electrode using platinum wire, and to insert the silver electrode of electrolysis bath or calomel electrode as reference electrode, a telescopic titanium alloy pin connects the sample electrode of tin plate to be measured；
One sample divider, described electrolysis bath connects this catcher by corresponding pipeline with switch；
A set of liquid feeding system, it includes a chemical tank and the peristaltic pump connecting electrolysis bath；
A set of rinse-system, it includes distilling tank and being connected into the pipeline of electrolysis bath, and pipe end is with the spray head towards tin plate to be measured；
One PLC control system, it controls to connect described peristaltic pump, pneumatic operated valve and the switch of sample divider and flush switch.
The most according to claim 1, in tin plate coating, lead measures sample treatment automatic test equipment, it is characterised in that described tin plate bottom to be measured is additionally provided with a location bar.
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 |
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| CN102998353A CN102998353A (en) | 2013-03-27 |
| CN102998353B true CN102998353B (en) | 2016-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| 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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Families Citing this family (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 |
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| CN102998353A (en) | 2013-03-27 |
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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. |