Izinto zegranite ziye zathandwa kakhulu kuyilo nolwakhiwo lwezixhobo zokubhola kunye noomatshini bokugaya be-PCB. Oku kungenxa yokukwazi kwazo ukumelana nobushushu obuphezulu obuveliswa ngexesha lenkqubo yokugaya ngaphandle kokulahlekelwa bubume bazo besakhiwo. Ukusetyenziswa kwezinto zegranite kwiizixhobo zokubhola kunye noomatshini bokugaya be-PCB kuphucula ukuchaneka, ukuchaneka kunye nesantya senkqubo nto leyo ephumela kwiimveliso zokugqibela ezikumgangatho ophezulu.
Uluhlu lokutshintshatshintsha kobushushu bezinto zegranite ezisetyenziswa kumatshini wokubhola we-PCB kunye nowokugaya luxhomekeke kwizinto ezininzi. Ezi zinto ziquka uhlobo lwegranite esetyenziswayo, ubukhulu bento yegranite, isantya sokubhola okanye sokugaya, kunye nobunzulu nobukhulu bomngxuma osetyenziswayo.
Ngokwesiqhelo, igranite inomlinganiselo ophantsi wokwanda kobushushu, oko kuthetha ukuba iya kuxhathisa ukuguquguquka kunye nomonakalo obangelwa ngamaqondo obushushu aphezulu. Ukongeza, igranite inomthamo ophezulu wobushushu, ovumela ukuba ifunxe ubushushu kwaye igcine ubushushu obufanayo. Oku kuyenza ibe yinto efanelekileyo yokusetyenziswa koomatshini bokugrumba kunye nokugaya be-PCB, apho amaqondo obushushu aphezulu enziwa khona ngexesha lenkqubo yokugaya.
Uninzi lwezinto zegranite ezisetyenziswa kwi-PCB drilling kunye ne-milling machines zinomlinganiselo wokutshintshatshintsha kobushushu obuphakathi kwama-20℃ ukuya kuma-80℃. Nangona kunjalo, olu luhlu lunokwahluka ngokuxhomekeke kuhlobo lwegranite esetyenzisiweyo. Umzekelo, igranite emnyama, enomthamo ophezulu wobushushu, inokumelana nobushushu obuphezulu xa kuthelekiswa nemibala ekhaphukhaphu yegranite.
Ukongeza kuluhlu lokutshintsha kobushushu, ubukhulu bento yegranite nayo yinto ebalulekileyo ekufuneka iqwalaselwe. Izinto zegranite ezijiyileyo ziyakwazi ukufunxa ubushushu kwaye zigcine ubushushu obuzinzileyo ngexesha lenkqubo yokugaya. Oku kuqinisekisa ukuba ukuchaneka nokuchaneka komatshini wokubhola nokugaya we-PCB kuyagcinwa nokuba emva kokusetyenziswa ixesha elide.
Isantya sokubhola okanye sokugawula sikwayinto ebalulekileyo ekufuneka iqwalaselwe xa kusetyenziswa izinto zegranite kumatshini wokubhola wePCB kunye noomatshini bokugaya. Isantya esiphezulu sokubhola okanye sokugawula senza ubushushu obuninzi, obunokubangela umonakalo kwi-granite element. Ke ngoko, kubalulekile ukulawula isantya somatshini ukuqinisekisa ukuba uluhlu lokutshintsha kobushushu be-granite element luyagcinwa.
Ukuqukumbela, ukusetyenziswa kwezinto zegranite kuye kwaguqula inkqubo yokubhola nokugaya i-PCB. Zihlala ixesha elide kwaye ziyakwazi ukumelana namaqondo obushushu aphezulu ngaphandle kokonakala. Uluhlu lokutshintsha kobushushu lwezinto zegranite ezisetyenziswa kumatshini wokubhola nokugaya i-PCB luphakathi kwama-20℃ ukuya kuma-80℃, kuxhomekeke kubukhulu kunye nohlobo lwegranite esetyenzisiweyo. Ngolu lwazi, iinjineli kunye neengcali zinokukhetha into yegranite efanelekileyo kumatshini wabo wokubhola nokugaya i-PCB ukuze baphucule ukusebenza kwaye bafumane iimveliso zokugqibela ezisemgangathweni.
Ixesha leposi: Matshi-18-2024