Ukukhetha Phakathi Kwe-Anti-Static kanye Ne-conductive Foams

Igwebu elikhethekile le-ESD elakhelwe ukuvikela izinto zikagesi ezizwelayo ezimile, izingxenye, nezingxenye ngesikhathi sokuthunyelwa nokugcinwa selubalulekile ezinhlelweni eziningi zesimanje. Lapho ukhetha igwebu elifanele, kubalulekile ukuqinisekisa ukuthi lihambisana namazinga ezinto zokupakisha ze-EIA-541 zezinto ezizwela i-ESD. Ukuqonda umehluko phakathi kwamagwebu e-anti-static kanye ne-conductive kuyisihluthulelo sokwenza ukukhetha okulungile kohlelo lwakho lokusebenza.

Iyini i-Anti-Static Foam?

Igwebu le-Anti-static (ESD) lenzelwe ukunciphisa ukunqwabelana kwezindleko ze-electrostatic ezingalimaza izingxenye ze-elekthronikhi ezibucayi. Ngokuvamile eyenziwe nge-polyurethane noma i-polyethylene enezithako ezilwa nokuqina, leli gwebu linokumelana okungaphezulu kububanzi obungu-10⁹ kuya ku-10⊃1;⊃2; ohms.

Iningi legwebu elilwa ne-static libonakala kalula ngombala walo obomvana, okubonisa ukuthi lilashwe ngamakhemikhali ukuze limelane nokukhiqiza ugesi omile. Kunokuqeda izinkokhiso ezikhona, kusiza ukuvimbela i-static ukuthi ingakheki—ikakhulukazi ekungqubuzaneni phakathi nokuphatha noma ukuthutha. Kodwa-ke, ayivimbeli amacala angaphandle amile, ngakho-ke ukuze kuvikelwe ngokugcwele ngesikhathi sokuthunyelwa, izinto zivame ukufakwa ngaphakathi kwesikhwama sokuzivikela (esinsimbi) ngaphezu kwegwebu.

Ngokuvamile, i-foam ye-anti-static ihloselwe ukusetshenziswa okulinganiselwe noma okukodwa.

Igwebu Elingaguquki

Igwebu elilahliwe eliqinile linikeza indlela elawulwayo yokuthi amashaji e-electrostatic ageleze ngokuphephile aye phansi, akwenze lokho kancane kancane kunezinto ezisetshenziswayo. Lokhu kuchithwa okulawulwayo kusiza ukuvikela izingxenye ezizwelayo ekukhishweni kungazelelwe.

Ivamise ukutholakala ngamafomu amnyama (agcwaliswe ngekhabhoni) noma apinki (afakwe ebusweni). Ngokumelana nendawo okusukela ku-10⁵ kuye ku-10⁹ ohms, igwebu elimile le-dissipative ligcina ukushajwa okuphansi noma okuphakathi nendawo futhi linciphisa ingcuphe yokukhishwa kwe-electrostatic okubangwa ukuphatha noma izici zemvelo.

Iyini i-Conductive Foam?

Igwebu le-conductive liyi-polyethylene-based material efakwe kukhabhoni, liyinika ukubukeka kwayo okumnyama. Ivamise ukuba nokumelana okungaphezulu okungaphansi kuka-10⁶ ohms, okuyivumela ukuthi iqhube kahle futhi ihlakaze amashaji kagesi.

Lolu hlobo lwegwebu luvikela izingxenye ze-elekthronikhi ngokwakha umphumela wekheji we-Faraday, luvikela okuqukethwe ezindimeni zangaphandle ze-electrostatic kanye ne-electromagnetic. Ngenxa yalokhu, izinto zokuvikela ezengeziwe ngokuvamile azidingeki uma usebenzisa i-foam conductive yokugcina noma ukuthunyelwa.

Nokho, kufanele kuqashelwe lapho kupakishwa izinto ezifana namabhethri. Uma ama-terminals conductive ehlangana ngqo ne-foam, kungaholela ekukhishweni okungahlosiwe. Ukuze uvimbele lokhu, amabhethri kufanele ahlukaniswe kusetshenziswa isendlalelo se-insulating noma amataniswe ne-static dissipative material lapho egcinwa noma ethuthwa.