Menene alakar da ke tsakanin ƙarfin jujjuyawar foil na jan karfe da elongation?

The tensile ƙarfi da elongation natsare tagullasu ne alamomi guda biyu masu mahimmanci na dukiya na zahiri, kuma akwai wata alaƙa tsakanin su, wanda kai tsaye ya shafi inganci da amincin kullin tagulla.

Ƙarfin ƙwanƙwasa yana nufin iyawar bangon jan ƙarfe don tsayayya da karaya a ƙarƙashin aikin ƙarfi, yawanci ana nunawa a cikin megapascals (MPa). Tsawaitawa yana nufin ikon kayan don jurewa nakasar filastik yayin aikin shimfidawa, wanda aka bayyana azaman kashi. The tensile ƙarfi da elongation natsare tagullaKauri da girman hatsi suna shafar lokaci guda, kuma bayanin wannan tasirin girman dole ne ya gabatar da ma'aunin girman kauri mara nauyi (T/D) azaman siga kwatance. Bambance-bambancen nau'in ƙarfin juzu'i ya bambanta a cikin jeri daban-daban na kauri-girma girman rabo, yayin da elongation yana raguwa tare da raguwar kauri lokacin da girman girman hatsi iri ɗaya ne.

A aikace aikace-aikace, kamar a yi nabuga allon kewayawa(PCBs), ma'auni masu ma'ana don ƙarfin ɗaure da haɓakawa na iya tabbatar da cewa samfurin ba shi da haɗari ga karaya ko lalacewa yayin amfani, ta haka yana tabbatar da inganci da amincin samfurin. Domin tensile gwajin na jan karfe, akwai daban-daban matsayi da kuma hanyoyin da za a tantance wadannan kaddarorin, kamar IPC-TM-650 2.4.18.1A misali, wanda aka musamman tsara domin tagulla tsare na buga kewaye allon da kuma samar da cikakken gwaji hanyoyin. da maki.

Lokacin gwada ƙarfin ƙarfi da haɓakar bangon jan ƙarfe, abubuwan da za a yi la'akari sun haɗa da girman samfurin, saurin gwaji, yanayin zafin jiki, da sauransu. Misali, ma'aunin ASTM E345-16 yana ba da hanyoyin don gwajin tensile na foil na ƙarfe, gami da cikakkun sigogi. kamar girman samfurin, saurin gwaji, da dai sauransu. Tsarin GB/T 5230-1995, a gefe guda, ya ƙayyade buƙatun gwaji don foil na jan ƙarfe na lantarki, gami da girman samfurin, tsayin ma'auni, nisa tsakanin clamps, da saurin matse injin gwajin.

A taƙaice, ƙarfin ƙwanƙwasa da haɓakar foil ɗin tagulla sune mahimman alamomi don auna halayensa na zahiri, kuma alaƙarsu da hanyoyin gwaji suna da mahimmanci don tabbatar da inganci da aikace-aikacen aikace-aikacen.tsare tagullakayan aiki.