Ekukhiqizweni kwebhodi lesifunda eliphrintiwe (i-PCB), ukunemba nokuqina kubalulekile. Isici esibalulekile sale nqubo ukugxivizwa kwe-PCB, futhi ukukhethwa kwezinto zezingxenye ezigxiviziwe kungathinta kakhulu ikhwalithi yokukhiqiza kanye nokusebenza kahle. Izinto ezimbili ezivamile ezisetshenziswa kulo mongo yi-granite nensimbi, ngayinye inezinzuzo zayo kanye nokungalungi kwayo.
Izingxenye ze-granite zaziwa ngokuqina kwazo okumangalisayo nokuqina. Ubuningi betshe lemvelo buhlinzeka ngesisekelo esiqinile esinciphisa ukudlidliza ngesikhathi senqubo yokunyathela, ngaleyo ndlela kwandise ukunemba futhi kunciphise ukuguguleka kwamathuluzi okunyathela. Lokhu kuzinza kuwusizo ikakhulukazi ekusetshenzisweni kwesivinini esikhulu, lapho ngisho nokunyakaza okuncane kakhulu kungabangela ukungalungi kanye nokukhubazeka. Ngaphezu kwalokho, i-granite imelana nokukhula kokushisa, iqinisekisa ukusebenza okufanayo emazingeni okushisa ahlukene, okuyinto ebalulekile ezindaweni lapho ukukhiqizwa kokushisa kuyinkinga khona.
Ngakolunye uhlangothi, izingxenye zensimbi zithandwa ngenxa yamandla azo nokuqina kwazo. Izingxenye zensimbi azikwazi ukuqhekeka njenge-granite, okwenza zibe ukukhetha okuthembekile kokukhiqizwa komthamo omkhulu. Ngaphezu kwalokho, izingxenye zensimbi zingashintshwa kalula ngomshini futhi zenziwe ngokwezifiso ukuze zihlangabezane nezidingo ezithile, okuhlinzeka ngokuguquguquka komklamo okungenakuqhathaniswa ne-granite. Kodwa-ke, izingxenye zensimbi zivame ukugqwala nokugqwala, okungaba yiphutha elikhulu ezindaweni ezinomswakama noma ezingcolisayo ngamakhemikhali.
Uma kuqhathaniswa ukusebenza kwe-granite nensimbi yezinhlelo zokusebenza zokunyathela ze-PCB, isinqumo sokugcina sincike ezidingweni ezithile zenqubo yokukhiqiza. Emisebenzini lapho ukunemba nokuzinza kubalulekile khona, i-granite ingaba yisinqumo esingcono kakhulu. Ngokuphambene nalokho, kuleyo misebenzi edinga ukuqina nokuzivumelanisa nezimo, insimbi ingaba yinzuzo kakhulu. Ukuqonda izakhiwo ezihlukile zezinto ngayinye kubalulekile kubakhiqizi abahlose ukwenza ngcono izinqubo zabo zokukhiqiza ze-PCB.
Isikhathi sokuthunyelwe: Jan-14-2025