CN102507357A - Plating surface wear resistance tester - Google Patents
Plating surface wear resistance tester Download PDFInfo
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- CN102507357A CN102507357A CN2011103256143A CN201110325614A CN102507357A CN 102507357 A CN102507357 A CN 102507357A CN 2011103256143 A CN2011103256143 A CN 2011103256143A CN 201110325614 A CN201110325614 A CN 201110325614A CN 102507357 A CN102507357 A CN 102507357A
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Abstract
The invention relates to a plating surface wear resistance tester, which comprises a sample carrying platform, a grinding mechanism, a driving mechanism and a limiting connector, wherein the grinding mechanism is arranged above the sample carrying platform by a support and comprises a sleeve which is arranged on the support and a grinding head and a weight which are arranged on the sleeve; the weight is arranged above the grinding head and adds a load onto the grinding head; the driving mechanism drives the sample carrying platform or the grinding mechanism to do reciprocal movement so that reciprocal sliding friction is generated between the grinding head and a sample to be tested; the lower end of the weight is provided with a fixed rod, and the upper end of the sleeve is suitable for the fixed rod to be inserted into; the lower end of the sleeve is suitable for the upper end of the grinding head to be inserted into; a shock absorbing device is arranged between the upper end of the grinding head and the fixed rod; and the limiting connector is used for connecting the fixed rod and the grinding head to the sleeve respectively and allowing the fixed rod and the grinding head to make up and down displacement along the axial direction of the sleeve. The plating surface wear resistance tester can operate quietly in a test process and delivers an accurate test result.
Description
Technical field
The present invention relates to a kind of wear-resisting test machine, specifically a kind of electrodeposited coating surface abrasion resistance test machine.
Background technology
At present; The anti-wear performance tester that many test object surface electrodeposited coatings are arranged; Like the disclosed a kind of anti-wear performance tester of Chinese patent document CN200965503Y; Comprise fixing test sample carry an appearance platform, can be in certain distance be fixed on the test sample that carries on the appearance platform and keep the measuring head of sliding contact, and can drive measuring head or carry the appearance platform make this two the propulsion system that back and forth relatively move take place, drive measuring head and carry an appearance platform and take place back and forth to relatively move through propulsion system; Measuring head keeps sliding contact and produces friction with the test sample that carries on the appearance platform in the process that the two back and forth relatively moves, and accomplishes test action.The good reproducibility of this prior art can be avoided the adverse effect of human factor to testing in manual testing's pattern, and reliability is higher, and test result is comparatively accurate.But because in this prior art, measuring head is the lower end that directly is connected the gravity counterweight rigidly, therefore; In wear-resisting test process; Play up and down can take place in the measuring head and the gravity counterweight that connect one in sleeve, not only can cause generation of noise, but also the dynamics that causes measuring head to act on the object to be tested is inhomogeneous; Thereby on the electrodeposited coating surface of object to be tested, cause pit easily, thereby influence precision of test result.When particularly this tester applied on the tiny tinsel that is provided with electrodeposited coating of test diameter anti-wear performance, shortcoming was particularly remarkable, therefore, is not suitable for being used in very much the anti-wear performance contrast test like spun gold on the connector and porpezite silk.
Summary of the invention
For this reason; Technical matters to be solved by this invention is that grinding head and the structural design between the gravity counterweight of anti-wear performance tester of the prior art is unreasonable and causes generation of noise in the test process; And the inaccurate problem of test result; Provide a kind of in test process noiselessness, and accurate test result electrodeposited coating surface abrasion resistance test machine.
For solving the problems of the technologies described above, a kind of electrodeposited coating surface abrasion resistance test machine of the present invention comprises
Carry an appearance platform, said year appearance platform be sample to be tested fixedly;
Grinding mechanism; Said grinding mechanism is arranged on the top of said year appearance platform through support, and it comprises the sleeve that is installed on the said support, is installed in grinding head and gravity counterweight on the said sleeve; Said gravity counterweight is arranged on the top of said grinding head, and said grinding head is loaded;
Driving mechanism, said year appearance platform of said drive mechanism or said grinding mechanism are done relative to coming and going and are moved, make the round sliding friction of generation between said grinding head and the said sample to be tested;
The lower end of said gravity counterweight has fixed bar, and the upper end of said sleeve is suitable for said fixed bar and inserts; The lower end of said sleeve is suitable for the upper end of said grinding head and inserts; And be provided with vibration absorber between the upper end of said grinding head and the said fixed bar; Also comprise said fixed bar and said grinding head are connected on the said sleeve, and can make said fixed bar and said grinding head at the spacing coupling arrangement that upper and lower displacement takes place on said sleeve axial direction.
Said spacing coupling arrangement comprises: first through hole that is molded over the radial direction of said fixed bar lower end; Be molded over second through hole of radial direction of the upper end of said grinding head; Be molded on the upper and lower relevant position of sidewall of said sleeve; First stopper slot and second stopper slot that extend along said sleeve axial direction, and pass said first through hole and said first stopper slot with spacing first positioning link bar that is connected on the said sleeve of said gravity counterweight; Pass said second through hole and second stopper slot with spacing second positioning link bar that is connected on the said sleeve of said grinding head.
Said first through hole and said second through hole are all threaded hole, and said first positioning link bar and said second positioning link bar are all set screw.
The lower end of said fixed bar forms blind hole, and said vibration absorber is a shock-absorbing spring, and the upper end of said shock-absorbing spring is stretched in the said blind hole, and the lower end is connected with the upper end of said grinding head.
The appearance platform comprised the jaw seat that sample is set in said year; An and end that is arranged on said jaw seat; Cooperate the adjustable jaw that clamps sample with said jaw seat, and form the card entry slot that the two ends that are fit to sample snap on the two opposite side walls of said jaw seat and said adjustable jaw.
Said jaw seat is provided with threaded hole, and said adjustable jaw is provided with through hole, and the adjusting screw(rod) that is provided with setting nut passes said through hole and said threaded hole, and said adjustable jaw is arranged on the said jaw seat adjustablely.
Said sample to be tested is the tinsel that is provided with electrodeposited coating, also is provided with dismountablely on the said card entry slot of said year appearance platform, sets firmly this substrate wiry.
Said substrate is a copper sheet, and said tinsel is installed on the said substrate through welding.
Also be provided with dismountable substrate on the said card entry slot of said year appearance platform, form several tinsels on the said substrate, said tinsel is provided with electrodeposited coating.
Also be provided with the micro lighting lamp on the said sleeve.
The appearance platform was provided with slideway in said year; Be provided with fixing directive slide track in the said slideway, said driving mechanism comprises and being connected with said year appearance platform, drives said year appearance platform and does straight line along said directive slide track and come and go connecting rod and the crank wheel that moves; Change speed gear box and stepless speed-regulating motor and speed setting controller; Also comprise an end that is arranged on said directive slide track, respond to said year appearance platform come and go number of times near switch, and write down the adjustable counter that said year appearance platform comes and goes number of times.
Technique scheme of the present invention is compared prior art and is had the following advantages; 1, in the present invention; Being equipped with of shock-absorbing spring between grinding head and the gravity counterweight and spacing coupling arrangement can guarantee that in test process the play up and down of grinding head alleviates the influence to the gravity counterweight through the effect of shock-absorbing spring, reduced the impact of the shake of gravity counterweight to grinding head; Make grinding head to grind more reposefully, thereby improve the accuracy of wear-resisting test; 2, in the present invention, also be provided with the copper sheet that supplies welded wire, make the present invention both be applicable to the anti-wear performance on test article plane, also can test the anti-wear performance wiry of tiny coating, versatility is better.
Description of drawings
For content of the present invention is more clearly understood, below according to a particular embodiment of the invention and combine accompanying drawing, the present invention is done further detailed explanation, wherein
Fig. 1 is a front view of the present invention;
Fig. 2 is a vertical view of the present invention;
Fig. 3 is the front view that is welded with electrodeposited coating copper sheet wiry of the present invention
Fig. 4 is the front view that is formed with copper sheet wiry of the present invention.
Reference numeral is expressed as among the figure: 1-carries a kind platform; The 2-sleeve; The 3-grinding head; 4-gravity counterweight; The 5-fixed bar; 6-first stopper slot; 7-second stopper slot; 8-first positioning link bar; 9-second positioning link bar; 10-jaw seat; The adjustable jaw of 11-; The 12-card entry slot; The 13-setting nut; The 14-adjusting screw(rod); The 15-shock-absorbing spring; 16-micro lighting lamp; The 17-directive slide track; The 18-connecting rod; The 19-crank wheel; 20-is near switch; The adjustable counter of 21-; The 22-holder; The 23-copper sheet; The 24-tinsel.
Embodiment
Embodiment 1
Shown in Fig. 1-2, a kind of electrodeposited coating surface abrasion resistance test machine of embodiment 1 comprises and carries an appearance platform 1, and said year appearance platform 1 be sample to be tested fixedly; Grinding mechanism; Said grinding mechanism is arranged on the top of said year appearance platform 1 through support, and it comprises the sleeve 2 that is installed on the said support, is installed in grinding head 3 and gravity counterweight 4 on the said sleeve 2; Said gravity counterweight 4 is arranged on the top of said grinding head 3; Said grinding head 3 is loaded, and certainly, said support can be set to high schedulable structure up and down; Driving mechanism, said year appearance platform 1 of said drive mechanism or said grinding mechanism are done relative to coming and going and are moved, make the round sliding friction of generation between said grinding head 3 and the said sample to be tested; The lower end of said gravity counterweight 4 has fixed bar 5, and the upper end of said sleeve 2 is suitable for said fixed bar 5 and inserts; The lower end of said sleeve 2 is suitable for the upper end of said grinding head 3 and inserts; And be provided with damping spring 15 between the upper end of said grinding head 3 and the said fixed bar 5; Also comprise said fixed bar 5 is connected on the said sleeve 2 with said grinding head 3, and can make said fixed bar 5 and the spacing coupling arrangement of said grinding head 3 in the upper and lower displacement of generation on said sleeve 2 axial directions.Said shock-absorbing spring 15 can guarantee in test process with being equipped with of said spacing coupling arrangement; The play up and down of grinding head 3 alleviates the influence to gravity counterweight 4 through the effect of shock-absorbing spring 15; Reduced the impact of the shake of gravity counterweight 4 to grinding head; Make grinding head 3 to grind more reposefully, thereby improve the accuracy of wear-resisting test.
In the present embodiment, said spacing coupling arrangement comprises: first through hole that is molded over the radial direction of said fixed bar 5 lower ends; Be molded over second through hole of radial direction of the upper end of said grinding head 3; Be molded on the upper and lower relevant position of sidewall of said sleeve 2; First stopper slot 6 and second stopper slot 7 that extend along said sleeve 2 axial directions, and pass said first through hole and said first stopper slot 6 with said gravity counterweight 4 spacing first positioning link bars 8 that are connected on the said sleeve 2; Pass said second through hole and second stopper slot 7 with said grinding head 3 spacing second positioning link bars 9 that are connected on the said sleeve 2.
Said first through hole and said second through hole are all threaded hole, and said first positioning link bar 8 is all set screw with said second positioning link bar 9.
The lower end of said fixed bar 5 forms blind hole, and the upper end of said vibration absorber is stretched in the said blind hole, and the lower end is connected with the upper end of said grinding head 3.
Appearance platform 1 comprised the jaw seat 10 that sample is set in said year; An and end that is arranged on said jaw seat 10; Cooperate the adjustable jaw 11 that clamps sample to be tested with said jaw seat 10, and form the card entry slot 12 that the two ends that are fit to sample to be tested snap on the two opposite side walls of said jaw seat 10 and said adjustable jaw 11.The xsect of said card entry slot 12 can be rectangular recess, also can be leg-of-mutton wedge angle groove.
Said jaw seat 10 is provided with threaded hole, and said adjustable jaw 11 is provided with through hole, and the adjusting screw(rod) 14 that is provided with setting nut 13 passes said through hole and said threaded hole, and said adjustable jaw 11 is arranged on the said jaw seat 10 adjustablely.
Also be provided with micro lighting lamp 16 on the said sleeve 2.
Appearance platform 1 was provided with slideway in said year; Be provided with fixing directive slide track 17 in the said slideway; Said directive slide track 17 is arranged on the holder 22; Said driving mechanism comprises and being connected with said year appearance platform 1, drives said year appearance platform 1 and does straight line along said directive slide track 17 and come and go the connecting rod 18 and crank wheel 19 that moves, and change speed gear box and stepless speed-regulating motor and speed setting controller, also comprises an end that is arranged on said directive slide track 17; Respond to said year appearance platform 1 come and go number of times near switch 20, and write down the adjustable counter 21 that said year appearance platform 1 comes and goes number of times.
Embodiment 2
As shown in Figure 3, said sample to be tested is when being provided with the tinsel 24 of electrodeposited coating, also is provided with dismountablely on the said card entry slot 12 of said year appearance platform 1, sets firmly the substrate of this tinsel 24.In the present embodiment, said substrate is a copper sheet 23, and said tinsel 24 is installed on the said substrate through welding.Said tinsel can be porpezite silk or spun gold etc.
As shown in Figure 4, certainly, can also carry out punching press, thereby directly on said substrate, form several tinsels 24 substrate, again on the tinsel 24 that forms electrodeposited coating being set, at last substrate being arranged on and carrying on the appearance platform and can test.In the present embodiment, saidly can be copper sheet 23 basically.
The course of work of the present invention:
The present invention both can be used for testing the anti-wear performance on article plane, also can test the anti-wear performance of tiny coating silk, like porpezite silk or spun gold.Just when the anti-wear performance on test article plane, can directly test article clamping carried on the appearance platform 1; And test coating silk the time; Need be fixed on the coating silk of having electroplated on the copper sheet 23 like porpezite silk or spun gold, reinstall and carry on the appearance platform 1; Aim at the porpezite silk that to do abrasion test on the center line of grinding head 3 (above anti-shake damping weights is arranged be that 110--120 gram pressure withstands grinding head through spring and aims at the porpezite silk); Behind the aligning, regulate adjustable jaw 11, copper sheet 23 is clamped.Turn on the power switch then, twist the speed governing turn-knob again after opening the switch on the speed regulator again, treat that motor speed reaches requirement about 30 times/minute.Driven by motor is carried kind platform 1 and is done straight reciprocating motion reposefully along directive slide track 17, moves gold-plated silk and does abrasion test, and the to-and-fro movement number of times is by adjustable register 21 records.The abrasion resistance of in wear-resisting process, mainly seeing every layer of electrodeposited coating is The more the better, wear results: adopt NSK (SPF-9250) XRF layer thickness meter, and the thickness of coating behind the measurement wearing and tearing number of times, and do the contrast report.
The present invention both can do wear-resisting experiment to any electrodeposited coating, also can do wear-resisting experiment to any application surface, and versatility is good.
Obviously, the foregoing description only be for explanation clearly done for example, and be not qualification to embodiment.For the those of ordinary skill in affiliated field, on the basis of above-mentioned explanation, can also make other multi-form variation or change.Here need not also can't give exhaustive to all embodiments.And conspicuous variation of being extended out thus or change still are among the protection domain of the invention.
Claims (11)
1. an electrodeposited coating surface abrasion resistance test machine comprises
Carry an appearance platform (1), the fixing sample to be tested of said year appearance platform (1);
Grinding mechanism; Said grinding mechanism through support be arranged on said year the appearance platform (1) the top; It comprises the sleeve (2) that is installed on the said support; Be installed in grinding head (3) and gravity counterweight (4) on the said sleeve (2), said gravity counterweight (4) is arranged on the top of said grinding head (3), and said grinding head (3) is loaded;
Driving mechanism, said year appearance platform (1) of said drive mechanism or said grinding mechanism are done relative to coming and going and are moved, make the round sliding friction of generation between said grinding head (3) and the said sample to be tested;
It is characterized in that:
The lower end of said gravity counterweight (4) has fixed bar (5), and the upper end of said sleeve (2) is suitable for said fixed bar (5) and inserts; The lower end of said sleeve (2) is suitable for the upper end of said grinding head (3) and inserts; And be provided with vibration absorber between the upper end of said grinding head (3) and the said fixed bar (5); Also comprise said fixed bar (5) and said grinding head (3) are connected on the said sleeve (2), and can make said fixed bar (5) and said grinding head (3) at spacing coupling arrangement along the upper and lower displacement of generation on said sleeve (2) axial direction.
2. electrodeposited coating surface abrasion resistance test machine according to claim 1 is characterized in that: said spacing coupling arrangement comprises: first through hole that is molded over the radial direction of said fixed bar (5) lower end; Be molded over second through hole of radial direction of the upper end of said grinding head (3); Be molded on the upper and lower relevant position of sidewall of said sleeve (2); First stopper slot (6) and second stopper slot (7) that extend along said sleeve (2) axial direction, and pass said first through hole and said first stopper slot (6) with spacing first positioning link bar (8) that is connected on the said sleeve (2) of said gravity counterweight (4); Pass said second through hole and second stopper slot (7) with spacing second positioning link bar (9) that is connected on the said sleeve (2) of said grinding head (3).
3. electrodeposited coating surface abrasion resistance test machine according to claim 2 is characterized in that: said first through hole and said second through hole are all threaded hole, and said first positioning link bar (8) and said second positioning link bar (9) are all set screw.
4. according to each described electrodeposited coating surface abrasion resistance test machine among the claim 1-3; It is characterized in that: the lower end of said fixed bar (5) forms blind hole; Said vibration absorber is a shock-absorbing spring (15); The upper end of said shock-absorbing spring (15) is stretched in the said blind hole, and the lower end is connected with the upper end of said grinding head (3).
5. according to each described electrodeposited coating surface abrasion resistance test machine among the claim 1-4; It is characterized in that: said year the appearance platform (1) comprise the jaw seat (10) that sample is set; An and end that is arranged on said jaw seat (10); Cooperate the adjustable jaw (11) that clamps sample to be tested with said jaw seat (10), and form the card entry slot (12) that the two ends that are fit to sample to be tested snap on the two opposite side walls of said jaw seat (10) and said adjustable jaw (11).
6. electrodeposited coating surface abrasion resistance test machine according to claim 5; It is characterized in that: said jaw seat (10) is provided with threaded hole; Said adjustable jaw (11) is provided with through hole; The adjusting screw(rod) (14) that is provided with setting nut (13) passes said through hole and said threaded hole, and said adjustable jaw (11) is arranged on the said jaw seat (10) adjustablely.
7. according to claim 5 or 6 described electrodeposited coating surface abrasion resistance test machines, it is characterized in that: said year the appearance platform (1) said card entry slot (12) on also be provided with dismountablely, set firmly the substrate of the tinsel that which is provided with electrodeposited coating (24) to be measured.
8. electrodeposited coating surface abrasion resistance test machine according to claim 7 is characterized in that: said substrate is copper sheet (23), and said tinsel (24) is installed on the said substrate through welding.
9. according to claim 5 or 6 described electrodeposited coating surface abrasion resistance test machines; It is characterized in that: said year the appearance platform (1) said card entry slot (12) on also be provided with dismountable substrate; Form several tinsels (24) on the said substrate, said tinsel (24) is provided with electrodeposited coating.
10. according to claim 7 or 9 described electrodeposited coating surface abrasion resistance test machines, it is characterized in that: also be provided with micro lighting lamp (16) on the said sleeve (2).
11. electrodeposited coating surface abrasion resistance test machine according to claim 10; It is characterized in that: said year the appearance platform (1) be provided with slideway; Be provided with fixing directive slide track (17) in the said slideway; Said driving mechanism comprise with said year the appearance platform (1) be connected; Drive said year the appearance platform (1) do connecting rod (18) and the crank wheel (19) that straight line come and go to move along said directive slide track (17); Change speed gear box and stepless speed-regulating motor and speed setting controller, also comprise an end that is arranged on said directive slide track (17), respond to said year the appearance platform (1) come and go number of times near switch (20), and write down said year the appearance platform (1) come and go the adjustable counter (21) of number of times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103256143A CN102507357A (en) | 2011-10-24 | 2011-10-24 | Plating surface wear resistance tester |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103256143A CN102507357A (en) | 2011-10-24 | 2011-10-24 | Plating surface wear resistance tester |
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| CN102507357A true CN102507357A (en) | 2012-06-20 |
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| CN2011103256143A Pending CN102507357A (en) | 2011-10-24 | 2011-10-24 | Plating surface wear resistance tester |
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| CN103454173A (en) * | 2013-08-16 | 2013-12-18 | 蔡宝祥 | Wear-resistant tester for fire hose |
| CN104345008A (en) * | 2013-07-30 | 2015-02-11 | 特变电工股份有限公司 | Electric cable friction experiment apparatus |
| CN105675403A (en) * | 2016-01-06 | 2016-06-15 | 北京东方雨虹防水工程有限公司 | Fixed screw tearing thermal insulation board critical point tester and test method thereof |
| CN106198287A (en) * | 2016-07-29 | 2016-12-07 | 芜湖新泉汽车饰件系统有限公司 | Automotive upholstery scraping experiment device |
| CN106198284A (en) * | 2016-06-28 | 2016-12-07 | 芜湖鸣人热能设备有限公司 | Thermal hardware steel plate anticorrosive coat wear resistance testing device |
| CN106840623A (en) * | 2016-12-29 | 2017-06-13 | 张春慧 | The abrasion resistance testing device of weldment electrophoresis layer |
| CN108489895A (en) * | 2018-03-20 | 2018-09-04 | 时代沃顿科技有限公司 | A kind of detection method and detecting instrument for the anti-wiping property value of reverse osmosis membrane |
| CN108613868A (en) * | 2018-06-04 | 2018-10-02 | 苏州市安派精密电子有限公司 | A kind of electroplated product rub resistance experimental provision |
| CN109323947A (en) * | 2018-11-24 | 2019-02-12 | 安徽省蚌埠华益导电膜玻璃有限公司 | A kind of glass substrate wear resistance testing device |
| CN109406325A (en) * | 2018-12-19 | 2019-03-01 | 中煤科工集团淮北爆破技术研究院有限公司 | A kind of loading wire of electric detonator wear-resisting property test method |
| CN111678826A (en) * | 2020-07-09 | 2020-09-18 | 中国制浆造纸研究院有限公司 | Abrasion-resistant tester for paper pulp molding |
| CN113358512A (en) * | 2021-05-28 | 2021-09-07 | 苏州市安派精密电子有限公司 | Electroplating part friction-resistant testing device with high accuracy |
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Cited By (16)
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|---|---|---|---|---|
| CN104345008A (en) * | 2013-07-30 | 2015-02-11 | 特变电工股份有限公司 | Electric cable friction experiment apparatus |
| CN103454173B (en) * | 2013-08-16 | 2016-01-06 | 蔡宝祥 | A kind of wear-resistant tester for fire hose |
| CN103454173A (en) * | 2013-08-16 | 2013-12-18 | 蔡宝祥 | Wear-resistant tester for fire hose |
| CN105675403B (en) * | 2016-01-06 | 2018-09-07 | 北京东方雨虹防水工程有限公司 | Fixing screws tear thermal insulation board critical point tester and test method |
| CN105675403A (en) * | 2016-01-06 | 2016-06-15 | 北京东方雨虹防水工程有限公司 | Fixed screw tearing thermal insulation board critical point tester and test method thereof |
| CN106198284A (en) * | 2016-06-28 | 2016-12-07 | 芜湖鸣人热能设备有限公司 | Thermal hardware steel plate anticorrosive coat wear resistance testing device |
| CN106198287A (en) * | 2016-07-29 | 2016-12-07 | 芜湖新泉汽车饰件系统有限公司 | Automotive upholstery scraping experiment device |
| CN106840623A (en) * | 2016-12-29 | 2017-06-13 | 张春慧 | The abrasion resistance testing device of weldment electrophoresis layer |
| CN108489895A (en) * | 2018-03-20 | 2018-09-04 | 时代沃顿科技有限公司 | A kind of detection method and detecting instrument for the anti-wiping property value of reverse osmosis membrane |
| CN108613868A (en) * | 2018-06-04 | 2018-10-02 | 苏州市安派精密电子有限公司 | A kind of electroplated product rub resistance experimental provision |
| CN108613868B (en) * | 2018-06-04 | 2024-01-23 | 苏州市安派精密电子有限公司 | Friction-resistant experimental device for electroplated product |
| CN109323947A (en) * | 2018-11-24 | 2019-02-12 | 安徽省蚌埠华益导电膜玻璃有限公司 | A kind of glass substrate wear resistance testing device |
| CN109406325A (en) * | 2018-12-19 | 2019-03-01 | 中煤科工集团淮北爆破技术研究院有限公司 | A kind of loading wire of electric detonator wear-resisting property test method |
| CN109406325B (en) * | 2018-12-19 | 2021-04-20 | 中煤科工集团淮北爆破技术研究院有限公司 | Method for testing wear resistance of electric detonator leg wire |
| CN111678826A (en) * | 2020-07-09 | 2020-09-18 | 中国制浆造纸研究院有限公司 | Abrasion-resistant tester for paper pulp molding |
| CN113358512A (en) * | 2021-05-28 | 2021-09-07 | 苏州市安派精密电子有限公司 | Electroplating part friction-resistant testing device with high accuracy |
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Address after: 325600 Zhejiang city of Wenzhou province Yueqing City Weng Sanyang Street West Industrial Zone Applicant after: Wenzhou Yihua Connector Co., Ltd. Address before: 325600 Zhejiang city of Wenzhou province Yueqing City Weng Sanyang Street West Industrial Zone Applicant before: Wenzhou Yihua Communicated Connector Co., Ltd. |
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Application publication date: 20120620 |