Indlela yokuthola ukuvuza ye isithando somlilo se-vacuum sintering

Ziningi izindlela zokutholwa kokuvuza ezithandweni zokucwilisa i-vacuum sintering. Ngokwesimo sezinto zokusebenza okufanele zihlolwe, zingahlukaniswa zibe izinhlobo ezintathu: ukutholwa kokuvuza kwebhamuza, ukutholwa kokuvuza kwe-boost pressure kanye nokutholwa kokuvuza kwe-helium mass spectrometry.

1, indlela yokuthola ukuvuza kwebhamuza

Indlela yokuthola ukuvuza kwebhamuza ukucindezela umoya engxenyeni ehloliwe, bese uwucwilisa emanzini noma ufake insipho endaweni esolisayo. Uma kukhona ukuvuza engxenyeni ehloliwe, insipho izobhodla, okungahlulelwa ngokubheka amagwebu. Ukuba khona nendawo yokuvuza. Le ndlela yokuthola ukuvuza isetshenziswa kakhulu ezikhathini lapho ukuxhunywa kwesithando somlilo okufanele kuhlolwe kuxhunywe amabhawodi e-flange futhi kungamelana nokucindezela okuhle, futhi ingasetshenziselwa ukutholwa kokuvuza ezithandweni ezincane ze-vacuum sintering noma amapayipi evacuum. Uma isithando somlilo se-vacuum sintering sinesakhiwo esiyinkimbinkimbi, ivolomu enkulu, nenani elikhulu lezindawo ezihlanganyelwe, indlela yokuthola ukuvuza kwebhamuza ngokuvamile isetshenziswa esigabeni sokuqala sokutholwa kokuvuza. Le ndlela iyonga futhi iyasebenza, futhi ingafinyelela imiphumela engcono yokuthola ukuvuza.

2, thuthukisa indlela yokuthola ukuvuza

Indlela yokuthola ukuvuza okwandisa ingcindezi iwukusebenzisa uketshezi olushintshashintshayo olufana ne-acetone lapho kuvuza okusolekayo lapho i-vacuum esitsheni esihloliwe ifinyelela ngaphansi kuka-100Pa. Uma kukhona ukuvuza, igesi ye-acetone izongena ngaphakathi kwesitsha esihloliwe ngokuvuza. Nquma ukuthi ingabe kukhona ukuvuza kwezinto zokusebenza kusukela kungcindezi eboniswa ensimbini yokuqapha i-vacuum noma ngabe kukhona ukwanda okungazelelwe nokusobala, futhi unqume ukuba khona nendawo yokuvuza. Esigabeni esimaphakathi sokutholwa kokuvuza kwesithando se-vacuum sintering, okungukuthi, lapho indlela yokuthola ukuvuza kwebhamuza ingakwazi ukuthola ngokuphelele ukuvuza kwemishini, indlela yokuthola ukuvuza okuthuthukisiwe ingaqhubeka nokubona ukuvuza kwezisetshenziswa, futhi umphumela muhle.

3, indlela yokuthola ukuvuza kwe-helium mass spectrometry

Ukutholwa kokuvuza kwe-Helium mass spectrometry kuyindlela evamile nethembeke kakhulu yokuthola ukuvuza kwesithando somlilo. Isebenzisa umgomo kazibuthe wokuphambuka kwesitholi sokuvuza se-helium mass spectrometer, futhi iyazwela ku-helium yegesi evuzayo, ukuze kunqunywe indlela yokuthola ukuvuza. Le ndlela yokuthola ukuvuza isebenzisa ngokugcwele ukungena okuqinile, ukugeleza okulula, nokusabalalisa kalula kwe-helium. Inqubo yokuthola ukuvuza akulula ukuthi iphazamiseke, ngeke yahlulelwe ngokungeyikho, futhi inempendulo esheshayo. Lapho uhlola isithando somlilo se-vacuum sintering, qala ngokufutha ipayipi, xhuma umtshina ovuzayo njengoba kudingekile, bese uxhuma indawo yokuqapha umtshina ovuzayo epayipini le-vacuum yangaphambilini ngangokunokwenzeka; okwesibili, cabangela ukulandelana kokutholwa kokuvuza kwendawo yokuthola ukuvuza. Ngokuvamile, ingxenye ye-vacuum esebenza njalo inikezwa kuqala, njengeringi yokuvala yomnyango wegumbi le-vacuum, njll., bese kuba izindawo zokuthintana ezimile zesistimu ye-vacuum, njenge-vacuum gauge, i-flange yangaphandle yepayipi le-vacuum. , njll., kucatshangelwa, kulandelwe isimiso somoya kanye nesimiso samanzi.