Izinto zeGranite ziye zanda kakhulu kuyilo kunye nokwakhiwa kwePCB yokomba kunye noomatshini bokusila.Oku kubangelwa ukukwazi kwabo ukumelana nobushushu obuphezulu obuveliswe ngexesha lokwenziwa komatshini ngaphandle kokulahlekelwa yingqibelelo yolwakhiwo.Ukusetyenziswa kwezinto ze-granite kwi-PCB yokugaya kunye noomatshini bokugaya kwandisa ukuchaneka, ukuchaneka kunye nesantya senkqubo ebangela iimveliso eziphezulu zokuphela.
Uluhlu lobushushu bokutshintsha kwezinto zegranite ezisetyenziswa kwi-PCB yokomba kunye noomatshini bokungqusha ixhomekeke kwizinto ezininzi.Ezi zinto ziquka uhlobo lwe granite esetyenziswayo, ubukhulu bento yegranite, isantya sokomba okanye sokusila, nobunzulu kunye nobukhulu bomngxuma owenziwe ngoomatshini.
Ngokuqhelekileyo, i-granite ine-coefficient ephantsi yokwandiswa kwe-thermal, oku kuthetha ukuba iya kuxhathisa i-deformation kunye nomonakalo obangelwa ukushisa okuphezulu.Ukongezelela, i-granite inomthamo ophezulu we-thermal, ovumela ukuba ithathe ubushushu kwaye igcine ukushisa okuhambelanayo.Oku kwenza kube yinto efanelekileyo yokusetyenziswa kwi-PCB yokomba kunye noomatshini bokugaya, apho ubushushu obuphezulu benziwa ngexesha lenkqubo yomatshini.
Uninzi lweziqalelo zegranite ezisetyenziswa kwi-PCB yokomba kunye noomatshini bokungqusha banoluhlu oluguquguqukayo lobushushu obuphakathi kwe-20℃ ukuya kuma-80℃.Nangona kunjalo, olu luhlu lunokwahluka ngokuxhomekeke kuhlobo lwegranite esetyenzisiweyo.Ngokomzekelo, i-granite emnyama, enomthamo ophezulu we-thermal, inokumelana nokushisa okuphezulu xa kuthelekiswa ne-shades ekhanyayo ye-granite.
Ukongeza kuluhlu lokutshintsha kweqondo lokushisa, ubukhulu bento yegranite nayo yinto ebalulekileyo ekufuneka iqwalaselwe.Izinto ezityebileyo zegranite zikwazi ngcono ukufunxa ubushushu kwaye zigcine ubushushu obuzinzileyo ngexesha lenkqubo yomatshini.Oku kuqinisekisa ukuba ukuchaneka kunye nokuchaneka kwe-PCB yokomba kunye nomatshini wokusila igcinwe nasemva kokusetyenziswa ixesha elide.
Isantya sokomba okanye sokusila sikwayinto ebalulekileyo ekufuneka iqwalaselwe xa usebenzisa izinto zegranite kwi-PCB yokomba kunye noomatshini bokungqusha.Ukugrumba okuphezulu okanye isantya sokugaya kuvelisa ubushushu obuninzi, obunokubangela umonakalo kwinto yegranite.Ngoko ke, kubalulekile ukulawula isantya somatshini ukuqinisekisa ukuba ukuhluka kweqondo lokushisa kwento yegranite igcinwa.
Ukuqukumbela, ukusetyenziswa kwezinto zegranite kutshintshe inkqubo yokomba kunye nokusila kwiPCB.Zihlala zihlala kwaye ziyakwazi ukumelana namaqondo aphezulu ngaphandle kokulimala.Uluhlu oluguquguqukayo lobushushu bezinto zegranite ezisetyenziswa kwi-PCB yokomba kunye noomatshini bokungqusha ziphakathi kwe-20℃ ukuya kwi-80℃, kuxhomekeke kubunzima kunye nohlobo lwegranite esetyenzisiweyo.Ngolu lwazi, iinjineli kunye neechwephesha zinokukhetha eyona nto ilungileyo yegranite yePCB yabo yokomba kunye noomatshini bokugaya ukwenza ngcono ukusebenza kunye nokufezekisa iimveliso ezikumgangatho ophezulu.
Ixesha lokuposa: Mar-18-2024