CN114324192A - Method for judging oxidation resistance of tin-plated wire - Google Patents
Method for judging oxidation resistance of tin-plated wire Download PDFInfo
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- CN114324192A CN114324192A CN202210016444.9A CN202210016444A CN114324192A CN 114324192 A CN114324192 A CN 114324192A CN 202210016444 A CN202210016444 A CN 202210016444A CN 114324192 A CN114324192 A CN 114324192A
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- 230000003647 oxidation Effects 0.000 title claims abstract description 35
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 20
- HYHCSLBZRBJJCH-UHFFFAOYSA-N sodium polysulfide Chemical compound [Na+].S HYHCSLBZRBJJCH-UHFFFAOYSA-N 0.000 claims abstract description 17
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims abstract 5
- 230000003301 hydrolyzing effect Effects 0.000 claims abstract 4
- 150000004763 sulfides Chemical class 0.000 claims description 8
- 229910052979 sodium sulfide Inorganic materials 0.000 claims description 4
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 claims description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 3
- 239000013078 crystal Substances 0.000 claims description 3
- 239000012153 distilled water Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 229920006395 saturated elastomer Polymers 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 239000011593 sulfur Substances 0.000 claims description 3
- 229910052717 sulfur Inorganic materials 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 2
- 238000007747 plating Methods 0.000 abstract 4
- 230000001590 oxidative effect Effects 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 26
- 239000012266 salt solution Substances 0.000 description 4
- 230000003064 anti-oxidating effect Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000003963 antioxidant agent Substances 0.000 description 2
- 230000003078 antioxidant effect Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 239000012085 test solution Substances 0.000 description 1
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- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
Description
技术领域technical field
本发明涉及材料检测领域，特别是涉及一种镀锡线抗氧化能力的判定方法。The invention relates to the field of material detection, in particular to a method for determining the oxidation resistance of a tin-plated wire.
背景技术Background technique
镀锡铜线材质比较柔软，导电性能良好，与裸铜线相比，其耐腐蚀性，抗氧化性能更强，可大大延长电线缆的使用寿命；然而镀锡线的抗腐蚀、抗氧化能力也有区别，当镀锡线抗腐蚀、抗氧化性能不达标时，在短期内镀锡线就会出现发黄严重的会出现发黑，从而导致严重的质量事故；目前行业内主要通过检验锡原材料的化学成分和镀锡线成品的锡层厚度，并没有快速直接检验镀锡线抗氧化性能的方法。The tinned copper wire is relatively soft and has good electrical conductivity. Compared with bare copper wire, its corrosion resistance and oxidation resistance are stronger, which can greatly extend the service life of the cable; The ability is also different. When the anti-corrosion and anti-oxidation properties of the tin-plated wire are not up to the standard, the tin-plated wire will turn yellow and black in a short period of time, which will lead to serious quality accidents; The chemical composition of the raw materials and the thickness of the tin layer of the finished tinned wire do not have a quick and direct method to test the oxidation resistance of the tinned wire.
发明内容SUMMARY OF THE INVENTION
本发明为了解决上述现有技术中检验镀锡线抗氧化性能的效率低的技术问题，提出一种镀锡线抗氧化能力的判定方法。In order to solve the technical problem of low efficiency in testing the oxidation resistance of tinned wires in the prior art, the present invention proposes a method for determining the oxidation resistance of tinned wires.
本发明采用的技术方案是：The technical scheme adopted in the present invention is:
本发明提出了一种镀锡线抗氧化能力的判定方法，包括步骤：The present invention provides a method for determining the oxidation resistance of a tinned wire, comprising the steps of:
将待测的镀锡线放入盛有水解性硫化盐溶液中浸没预设时间；Put the tinned wire to be tested into a solution containing hydrolyzable sulfide salt and immerse it for a preset time;
将所述待测的镀锡线从水解性硫化盐溶液中取出暴露在空气中，等待第二预设时间；The tin-plated wire to be tested is taken out from the hydrolyzable sulfide salt solution and exposed to the air, and waits for a second preset time;
根据所述待测的镀锡线的颜色和光泽度，判断该镀锡线的抗氧化能力是否达标。According to the color and gloss of the tinned wire to be tested, it is judged whether the oxidation resistance of the tinned wire meets the standard.
当所述待测的镀锡线颜色为黑色且光泽度小于预设光泽度，判定该镀锡线的抗氧化性能不达标。When the color of the tinned wire to be tested is black and the gloss is less than the preset gloss, it is determined that the oxidation resistance of the tinned wire does not meet the standard.
当所述待测的镀锡线颜色为黄色且光泽度大于第二预设光泽度，判定该镀锡线的抗氧化性能达标。When the color of the tinned wire to be tested is yellow and the gloss is greater than the second preset gloss, it is determined that the oxidation resistance of the tinned wire meets the standard.
优选地具体实施例为：所述水解性硫化盐溶液为多硫化钠溶液。A preferred specific embodiment is: the hydrolyzable sulfide salt solution is a sodium polysulfide solution.
所述预设时间的范围为4至6分钟。The preset time ranges from 4 to 6 minutes.
所述第二预设时间的范围为8至12分钟。The second preset time ranges from 8 to 12 minutes.
多硫化钠溶液的制备方法为：将硫化钠晶体溶解在蒸馏水中，直至溶液在预设温度时达到饱和，然后再加入硫磺，加热搅拌使溶液完全饱和，再将溶液静置第三预设时间后过滤制成多硫化钠溶液。The preparation method of the sodium polysulfide solution is as follows: dissolving the sodium sulfide crystals in distilled water until the solution reaches saturation at a preset temperature, then adding sulfur, heating and stirring to make the solution completely saturated, and then allowing the solution to stand for a third preset time After filtration to make sodium polysulfide solution.
进一步的，预设温度的范围为18至22度。Further, the preset temperature ranges from 18 to 22 degrees.
进一步的，第三预设时间的范围为20至28小时。Further, the range of the third preset time is 20 to 28 hours.
进一步的，所述待测的镀锡线拧结成条状放入盛有水解性硫化盐溶液中。Further, the tinned wire to be tested is twisted into strips and placed in a solution containing a hydrolyzable sulfide salt.
与现有技术比较，本发明通过选用多硫化钠溶液对镀锡线进行浸泡，后暴露在空气中加速它的氧化，再通过观察其颜色和光泽度可以快速判断出待测试的镀锡线的抗氧化能力是否达标。Compared with the prior art, the present invention uses sodium polysulfide solution to soak the tin-plated wire, and then exposes it to the air to accelerate its oxidation, and then by observing its color and gloss, the tin-plated wire to be tested can be quickly judged. Whether the antioxidant capacity is up to standard.
附图说明Description of drawings
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。In order to explain the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only for the present invention. In some embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without any creative effort.
图1为本发明实施例中的流程图。FIG. 1 is a flowchart in an embodiment of the present invention.
具体实施方式Detailed ways
为了使本发明所要解决的技术问题、技术方案及有益效果更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.
下面结合附图以及实施例对本发明的原理及结构进行详细说明。The principle and structure of the present invention will be described in detail below with reference to the accompanying drawings and embodiments.
如图1所示，本发明提出了一种镀锡线抗氧化能力的判定方法，包括步骤：将待测的镀锡线放入盛有水解性硫化盐溶液(具体可以选用多硫化钠溶液，或者其他水解性硫化盐溶液)中浸没预设时间，将所述待测的镀锡线从硫化钠溶液中取出，进行氧化至第二预设时间；根据所述待测的镀锡线的颜色和光泽度，判断该镀锡线的抗氧化能力是否达标。水解性硫化盐溶液具体选用多硫化钠溶液，通过多硫化钠溶液对镀锡线进行浸泡后暴露在空气中，加速它的氧化，再通过观察其颜色和光泽度可以快速判断出镀锡线是否达标。As shown in Figure 1, the present invention proposes a kind of determination method of anti-oxidation ability of tin-plated wire, comprising steps: putting the tin-plated wire to be tested into a solution containing hydrolyzable sulfide salt (specifically, a sodium polysulfide solution can be selected, or other hydrolyzable sulfide salt solution) for a preset time, the tin-plated wire to be tested is taken out from the sodium sulfide solution, and oxidized to a second preset time; according to the color of the tin-plated wire to be tested and gloss to judge whether the oxidation resistance of the tinned wire meets the standard. The hydrolyzable sulfide salt solution is specifically selected from sodium polysulfide solution. The tin-plated wire is soaked in the sodium polysulfide solution and then exposed to the air to accelerate its oxidation. By observing its color and gloss, it can be quickly judged whether the tin-plated wire is meet the target.
具体的，当待测的镀锡线颜色为黑色且光泽度小于预设光泽度，判定该镀锡线的抗氧化性能不达标。即镀锡线被氧化后颜色发黑，且表面粗糙导致其光泽度过小，此时则说明其抗氧化性能不达标。Specifically, when the color of the tinned wire to be tested is black and the gloss is less than the preset gloss, it is determined that the oxidation resistance of the tinned wire does not meet the standard. That is, the color of the tin-plated wire is black after being oxidized, and the surface roughness causes its gloss to be too small. At this time, it means that its antioxidant performance is not up to standard.
当所述待测的镀锡线颜色为黄色且光泽度大于第二预设光泽度，判定该镀锡线的抗氧化性能达标。即镀锡线被多硫化钠溶液氧化后颜色发黄且光泽度高，说明其抗氧化能力强。When the color of the tinned wire to be tested is yellow and the gloss is greater than the second preset gloss, it is determined that the oxidation resistance of the tinned wire meets the standard. That is, after the tin-plated wire is oxidized by the sodium polysulfide solution, the color is yellow and the gloss is high, indicating that its anti-oxidation ability is strong.
在选用多硫化钠溶液作为测试溶液时，预设时间的范围为4至6分钟，最优可以选用5分钟作为镀锡线浸没预设时间。第二预设时间的范围为8至12分钟，最优可以选用10分钟作为镀锡线暴露在空气中的时长，在空气中时可以加速镀锡线的氧化，缩短判定时长。When the sodium polysulfide solution is selected as the test solution, the preset time range is 4 to 6 minutes, and 5 minutes can be optimally selected as the preset time for immersion of the tinned wire. The range of the second preset time is 8 to 12 minutes, and 10 minutes can be optimally selected as the duration of exposure of the tinned wire to the air, which can accelerate the oxidation of the tinned wire in the air and shorten the determination time.
多硫化钠溶液的具体制备方法为：将硫化钠晶体溶解在蒸馏水中形成溶液，直至溶液在预设温度时达到饱和，然后再加入硫磺(250g/L以上)，加热搅拌使溶液完全饱和，再将溶液静置第三预设时间后过滤制成多硫化钠溶液。该预设温度的范围为18至22度，最优选用20度。第三预设时间的范围为20至28小时，最优选用24小时。The specific preparation method of the sodium polysulfide solution is: dissolving sodium sulfide crystals in distilled water to form a solution, until the solution reaches saturation at a preset temperature, then adding sulfur (above 250g/L), heating and stirring to make the solution completely saturated, and then After standing the solution for a third preset time, it is filtered to prepare a sodium polysulfide solution. The preset temperature ranges from 18 to 22 degrees, with 20 degrees being the most preferred. The third preset time ranges from 20 to 28 hours, and is most preferably 24 hours.
以下为本发明的具体试验过程中以及结果。The following are the specific test process and results of the present invention.
选取正常A和异常B的镀锡线将其拧结成条状，将样品分别浸泡多硫化钠溶液中5min、10min、15min后空气暴露5min、10min、15min后氧化程度情况；共做了9组实验，经过对比发现样品在多硫化钠溶液中浸泡5min后空气暴露10min两种镀锡线的氧化程度差异明显。Select normal A and abnormal B tinned wires and twist them into strips, soak the samples in sodium polysulfide solution for 5min, 10min, and 15min, respectively, and then expose the oxidation degree to air for 5min, 10min, and 15min; a total of 9 groups were made. In the experiment, it was found that the oxidation degree of the two tin-plated wires was significantly different after the samples were soaked in the sodium polysulfide solution for 5 minutes and then exposed to the air for 10 minutes.
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明的保护范围之内。The above descriptions are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included in the protection of the present invention. within the range.
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- 2022-01-07 CN CN202210016444.9A patent/CN114324192A/en active Pending
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| 中华人民共和国工业和信息化部: "中华人民共和国电子行业标准 SJ/T11519-2015 电子连接用镀锡铜线规范", 中华人民共和国电子行业标准 SJ/T11519-2015》, pages 1 - 8 * |
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