{"title":"上料设备引入的表面污染与电接触电阻的关系","authors":"H.A. Francisco, K. Koeneke, J. Wallace","doi":"10.1109/HOLM.1991.170832","DOIUrl":null,"url":null,"abstract":"Contact degradation caused by austenitic stainless steel feeder bowls has raised concern among manufacturers of electrical contacts. The surface contamination of three contact materials, fine silver, silver cadmium oxide (90%Ag 10%CdO), and a silver alloy (75%Ag 24.5%Cu 0. 5%Ni) with 15-microinch (Ra) surface finish, was investigated. Contact resistance probing was employed and surfaces were analyzed to explain the degradation process. The investigation elucidated the effects of various vibratory feeder bowl coatings which reduced surface contamination. The attainment of low contact resistance was explained as interactions among nobility of contact material, type of coating, and time spent in the vibratory feeder bowl.<<ETX>>","PeriodicalId":368900,"journal":{"name":"Electrical Contacts - 1991 Proceedings of the Thirty-Seventh IEEE HOLM Conference on Electrical Contacts","volume":"110 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":"{\"title\":\"Correlation of surface contamination introduced by feeding equipment on electrical contact resistance\",\"authors\":\"H.A. Francisco, K. Koeneke, J. Wallace\",\"doi\":\"10.1109/HOLM.1991.170832\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Contact degradation caused by austenitic stainless steel feeder bowls has raised concern among manufacturers of electrical contacts. The surface contamination of three contact materials, fine silver, silver cadmium oxide (90%Ag 10%CdO), and a silver alloy (75%Ag 24.5%Cu 0. 5%Ni) with 15-microinch (Ra) surface finish, was investigated. Contact resistance probing was employed and surfaces were analyzed to explain the degradation process. The investigation elucidated the effects of various vibratory feeder bowl coatings which reduced surface contamination. The attainment of low contact resistance was explained as interactions among nobility of contact material, type of coating, and time spent in the vibratory feeder bowl.<<ETX>>\",\"PeriodicalId\":368900,\"journal\":{\"name\":\"Electrical Contacts - 1991 Proceedings of the Thirty-Seventh IEEE HOLM Conference on Electrical Contacts\",\"volume\":\"110 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1900-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Electrical Contacts - 1991 Proceedings of the Thirty-Seventh IEEE HOLM Conference on Electrical Contacts\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/HOLM.1991.170832\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Electrical Contacts - 1991 Proceedings of the Thirty-Seventh IEEE HOLM Conference on Electrical Contacts","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/HOLM.1991.170832","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Correlation of surface contamination introduced by feeding equipment on electrical contact resistance
Contact degradation caused by austenitic stainless steel feeder bowls has raised concern among manufacturers of electrical contacts. The surface contamination of three contact materials, fine silver, silver cadmium oxide (90%Ag 10%CdO), and a silver alloy (75%Ag 24.5%Cu 0. 5%Ni) with 15-microinch (Ra) surface finish, was investigated. Contact resistance probing was employed and surfaces were analyzed to explain the degradation process. The investigation elucidated the effects of various vibratory feeder bowl coatings which reduced surface contamination. The attainment of low contact resistance was explained as interactions among nobility of contact material, type of coating, and time spent in the vibratory feeder bowl.<>
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