CN203965379U - Electrician uses copper bar oxide thickness proving installation - Google Patents
Electrician uses copper bar oxide thickness proving installation Download PDFInfo
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- CN203965379U CN203965379U CN201420400302.3U CN201420400302U CN203965379U CN 203965379 U CN203965379 U CN 203965379U CN 201420400302 U CN201420400302 U CN 201420400302U CN 203965379 U CN203965379 U CN 203965379U
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Abstract
The utility model provides a kind of electrician to use copper bar oxide thickness proving installation, comprise DC current source, data recording and processing system and the electrolytic tank that is contained with electrolytic solution, in described electrolytic tank, be provided with the negative electrode of being made with copper bar by electrician and the anode of being made by inert metal, the lower end of described negative electrode and the lower end of anode are all immersed in electrolytic solution, the two ends of described DC current source are connected with anode with negative electrode respectively, and described negative electrode is connected with data recording and processing system.This proving installation is the thickness with the oxide film on copper bar surface for detection of electrician, and test operation is very convenient, quick, and can accurately measure the one-tenth-value thickness 1/10 of oxide film, therefore measuring accuracy is high, for electrician provides a strong foundation by the following process of copper bar.
Description
Technical field
The utility model relates to electrician with the thickness detection field of copper bar surface film oxide, particularly relates to a kind of electrician and uses copper bar oxide thickness proving installation.
Background technology
Electrician refers to the round copper rod that meets GB3952 standard with copper bar, its copper content is higher, for drawing electric wire and enameled wire etc.Electrician with copper bar production run be in earlier stage deposited in always airborne, therefore copper bar can with airborne oxygen generation oxidation reaction, and then on the surface of copper bar, form layer oxide film, the composition of this oxide film is cupric oxide and cuprous oxide.Practical studies shows, the thickness size of oxide film all can cause impact in various degree to copper bar surface quality and the follow-up processing characteristics of copper bar, the thickness of oxide film is crossed conference and is caused copper bar surface blackening, have a strong impact on copper bar surface quality, simultaneously also can produce adverse influence to processing such as the follow-up wire drawing of copper bar, zinc-plated, japannings, therefore be necessary very much the thickness of copper bar surface film oxide to measure before copper bar enters production.
At present, domestic existing electrician is generally by electrician is judged to the thickness of oxide film is big or small by the weight that copper bar reverses rear mensuration copper powder amount by the measuring method of copper bar oxide thickness, but, this measuring method can not be directly and is measured accurately the thickness of oxide film, it can only judge qualitatively by the number of copper powder amount the size of oxide thickness, measuring accuracy is very low, and result is inaccurate, therefore not can be effectively used to the measurement of oxide thickness.Meanwhile, the method troublesome poeration, need to enwind with adhesive tape two terminations of copper bar to be measured, but adhesive tape need to press through fixture in measuring process, and it easily splits, thereby scratch copper bar surface, easily cause the increase of copper powder amount, and then affect the measuring accuracy of oxide thickness.
Utility model content
The shortcoming of prior art in view of the above, the purpose of this utility model is to provide a kind of easy to operate and electrician that measuring accuracy is high with copper bar oxide thickness proving installation.
For achieving the above object, the utility model provides a kind of electrician to use copper bar oxide thickness proving installation, comprise DC current source, data recording and processing system and the electrolytic tank that is contained with electrolytic solution, in described electrolytic tank, be provided with the negative electrode of being made with copper bar by electrician and the anode of being made by inert metal, the lower end of described negative electrode and the lower end of anode are all immersed in electrolytic solution, the two ends of described DC current source are connected with anode with negative electrode respectively, and described negative electrode is connected with data recording and processing system.
Further, also comprise a voltameter, this voltameter is connected with data recording and processing system with DC current source respectively, for measure DC current source output size of current, and this size of current is transferred to data recording and processing system.
Preferably, be also provided with the contrast electrode in an immersion electrolytic solution in described electrolytic tank, this contrast electrode is connected with data recording and processing system.
As mentioned above, the electrician that the utility model relates to uses copper bar oxide thickness proving installation, has following beneficial effect:
This proving installation is the thickness with the oxide film on copper bar surface for detection of electrician, and test operation is very convenient, quick, and can accurately measure the one-tenth-value thickness 1/10 of oxide film, therefore measuring accuracy is high, for electrician provides a strong foundation by the following process of copper bar.
Accompanying drawing explanation
Fig. 1 is the structural representation that in the utility model, electrician uses copper bar oxide thickness proving installation.
Fig. 2 is the reaction time figure of negative electrode in the utility model.
Element numbers explanation
1 DC current source
2 data recording and processing systems
3 electrolytic tanks
4 negative electrodes
5 anodes
6 voltameters
7 contrast electrodes
Embodiment
By particular specific embodiment, embodiment of the present utility model is described below, person skilled in the art scholar can understand other advantages of the present utility model and effect easily by the disclosed content of this instructions.
Notice, appended graphic the illustrated structure of this instructions, ratio, size etc., equal contents in order to coordinate instructions to disclose only, for person skilled in the art scholar, understand and read, not in order to limit the enforceable qualifications of the utility model, therefore the technical essential meaning of tool not, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under the effect that the utility model can produce and the object that can reach, all should still drop on the technology contents that the utility model discloses and obtain in the scope that can contain.Simultaneously, in this instructions, quote as " on ", the term of D score, " left side ", " right side ", " centre " and " " etc., also only for ease of understanding of narrating, but not in order to limit the enforceable scope of the utility model, the change of its relativeness or adjustment, under without essence change technology contents, when being also considered as the enforceable category of the utility model.
As shown in Figure 1, the utility model provides a kind of electrician to use copper bar oxide thickness proving installation, comprise DC current source 1, data recording and processing system 2 and the electrolytic tank 3 that is contained with electrolytic solution, in described electrolytic tank 3, be provided with the negative electrode 4 of being made with copper bar by electrician and the anode 5 of being made by inert metal, the lower end of the lower end of described negative electrode 4 and anode 5 is all immersed in electrolytic solution, the two ends of described DC current source 1 are connected with anode 5 with negative electrode 4 respectively, and described negative electrode 4 is connected with data recording and processing system 2.
The utility model also provides a kind of electrician to use copper bar oxide thickness method of testing, comprises the following steps successively:
1), the electrician from alignment shears one section of copper bar as copper bar sample with copper bar;
2), using copper bar sample as negative electrode 4, pack in electrolytic tank 3, be also provided with an anode of being made by inert metal 5 in this electrolytic tank 3, the lower end of the lower end of described negative electrode 4 and anode 5 is all immersed in the electrolytic solution being contained in electrolytic tank 3; In the present embodiment, the material of described anode 5 is platinum filament;
3), anode 5 is connected with the two ends of a DC current source 1 respectively with negative electrode 4, negative electrode 4 is connected with a data recording and processing system 2 simultaneously;
4), connect DC current source 1, start test, described data recording and processing system 2 records the reduction reaction time t1 of cuprous oxide and the reduction reaction time t2 of cupric oxide on negative electrode 4 surfaces automatically;
5), the thickness T 1 of cuprous oxide is
the thickness T 2 of cupric oxide is
In above-mentioned formula: I is current value (A);
M1, M2 are respectively the molecular weight (g/mol) of cuprous oxide, cupric oxide;
S is the area (cm that negative electrode 4 immerses in electrolytic solution
2);
D1, d2 are respectively the density (g/cm of cuprous oxide, cupric oxide
3), d1=6.0g/cm
3, d2=6.4g/cm
3;
F is Faraday constant, F=96500C/mol;
N is hydrogen equivalent, is a constant, n=2;
6), electrician uses the thickness T=T1+T2 of copper bar oxide film.
Above-mentioned proving installation and method of testing adopt electrolytic process test electrician to use the thickness of the oxide film on copper bar surface, and described oxide film consists of cuprous oxide and cupric oxide.During test, using the electrician to be measured with the copper bar sample of one section of certain length shearing copper bar as negative electrode 4, connect DC current source 1 and start after test, electrolytic solution by electrolysis after, at negative electrode, 4 places produce hydrogen ions; Because electromotive force height is different, hydrogen ion successively reacts with cuprous oxide and cupric oxide generation electrolytic reduction successively, and reactive chemistry formula is respectively: Cu
2o+2H
+=2Cu+H
2o; CuO+2H
+=Cu+H
2o; After cuprous oxide and cupric oxide are all reacted by electrolytic reduction, the surface of negative electrode 4 starts to produce bubble, and this bubble is hydrogen namely, now shows that experiment finishes, and can close DC current source 1.In whole test process, data recording and processing system 2 records the voltage of whole duration of test and corresponding reaction time automatically; The curve in voltage---reaction time as shown in Figure 2, as can be seen from Figure 2: cuprous oxide Cu
2the reaction velocity of O is faster, at cuprous oxide Cu
2curve corresponding to time t1 place that O finishes reaction forms the first flex point, and this first flex point is also the beginning reaction time of cupric oxide CuO; After cupric oxide CuO reaction a period of time t2, curve forms Second Inflexion Point, and this Second Inflexion Point is the time that cupric oxide CuO reaction finishes, and after this negative electrode 4 surfaces start to produce bubble, voltage---and the slope of a curve in reaction time slows down.By catching, voltage---the point of inflexion on a curve in reaction time obtains the reaction time t1 of cuprous oxide and the reaction time t2 of cupric oxide to described data recording and processing system 2, again according to step 5) in formula calculate respectively the thickness T 1 of cuprous oxide and the thickness T 2 of cupric oxide, finally the thickness T of the thickness T of cuprous oxide 1 and cupric oxide 2 is added and can obtains the thickness T that electrician uses the oxide film on copper bar surface, the unit of described T1, T2, T is cm.
Hence one can see that, the proving installation that the utility model relates to and method of testing are when detection electrician uses the thickness of copper bar surface film oxide, test operation step is very convenient, quick, and can accurately measure the one-tenth-value thickness 1/10 of oxide film, therefore measuring accuracy is high, for electrician provides a strong foundation by the following process of copper bar.
Further, as shown in Figure 1, also comprise a voltameter 6, this voltameter 6 is connected with data recording and processing system 2 with DC current source 1 respectively, described voltameter 6 claims again coulombmeter, for measure DC current source 1 output size of current, and this size of current is transferred to data recording and processing system 2.Before testing, the initial parameter of copper bar sample (being M1, M2, S, d1, d2, F, n) is inputed in data recording and processing system 2,2 automatic capturing reaction time of data recording and processing system t1 and t2 in experimentation, voltameter 6 is transferred to data recording and processing system 2 by the size of current value I simultaneously, therefore can automatically calculate and show the measurement result value of oxide thickness by data recording and processing system 2 after inside programming, thereby realize automatic measurement and robotization, calculate, improve testing efficiency and computational accuracy.
Preferably, as shown in Figure 1, be also provided with the contrast electrode 7 in an immersion electrolytic solution in described electrolytic tank 3, this contrast electrode 7 is connected with data recording and processing system 2.Described contrast electrode 7 for finding potential balance, guarantees that proving installation starts the zeroing before experiment, thereby improves the measuring accuracy of oxide thickness, greatly reduces error.
Preferably, in the present embodiment, the sodium carbonate liquor that described electrolytic solution is 0.1mol, the carbanion in sodium carbonate liquor belongs to weak acid root, its can with water reaction: the Na that is hydrolyzed
2cO
3+ H
2o==NaOH+NaHCO
3; NaHCO after energising
3in HCO3
-=H
++ CO
3 2-, provide reaction H
+.
Further, the length of described negative electrode 4 is 150-300mm, and the length that negative electrode 4 immerses in electrolytic solution is at least 100mm.In addition; described step 1) also comprise the steps: by file or other modes the lower end filing of copper bar sample; with alcohol or other organic solvents, conscientiously clean up copper bar sample simultaneously; to remove the protection wax coating of copper bar sample surfaces and emulsion remained; using copper bar sample as negative electrode 4, pack in electrolytic tank 3 more afterwards; to improve measuring accuracy, reduce the measuring error that exists impurity to cause because of copper bar sample surfaces.
In sum, the utility model has effectively overcome various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present utility model and effect thereof only, but not for limiting the utility model.Any person skilled in the art scholar all can, under spirit of the present utility model and category, modify or change above-described embodiment.Therefore, have in technical field under such as and conventionally know that the knowledgeable modifies or changes not departing from all equivalences that complete under spirit that the utility model discloses and technological thought, must be contained by claim of the present utility model.
Claims (3)
1. an electrician uses copper bar oxide thickness proving installation, it is characterized in that: comprise DC current source, data recording and processing system and the electrolytic tank that is contained with electrolytic solution, in described electrolytic tank, be provided with the negative electrode of being made with copper bar by electrician and the anode of being made by inert metal, the lower end of described negative electrode and the lower end of anode are all immersed in electrolytic solution, the two ends of described DC current source are connected with anode with negative electrode respectively, and described negative electrode is connected with data recording and processing system.
2. electrician according to claim 1 uses copper bar oxide thickness proving installation, it is characterized in that: also comprise a voltameter, this voltameter is connected with data recording and processing system with DC current source respectively, for measure DC current source output size of current, and this size of current is transferred to data recording and processing system.
3. electrician according to claim 1, with copper bar oxide thickness proving installation, is characterized in that: in described electrolytic tank, be also provided with the contrast electrode in an immersion electrolytic solution, this contrast electrode is connected with data recording and processing system.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420400302.3U CN203965379U (en) | 2014-07-18 | 2014-07-18 | Electrician uses copper bar oxide thickness proving installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420400302.3U CN203965379U (en) | 2014-07-18 | 2014-07-18 | Electrician uses copper bar oxide thickness proving installation |
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| Publication Number | Publication Date |
|---|---|
| CN203965379U true CN203965379U (en) | 2014-11-26 |
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ID=51925943
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|---|---|---|---|
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105136880A (en) * | 2015-09-02 | 2015-12-09 | 武汉康捷科技发展有限公司 | Copper oxide film thickness measuring instrument and measuring method |
| CN105353011A (en) * | 2015-11-17 | 2016-02-24 | 武汉钢铁(集团)公司 | Analyzer for metal oxide film |
-
2014
- 2014-07-18 CN CN201420400302.3U patent/CN203965379U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105136880A (en) * | 2015-09-02 | 2015-12-09 | 武汉康捷科技发展有限公司 | Copper oxide film thickness measuring instrument and measuring method |
| CN105136880B (en) * | 2015-09-02 | 2018-08-17 | 武汉康捷科技发展有限公司 | Copper oxide thickness measuring instrument and measurement method |
| CN105353011A (en) * | 2015-11-17 | 2016-02-24 | 武汉钢铁(集团)公司 | Analyzer for metal oxide film |
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