Ishubhu yensimbi engagqwaliukwelashwa ukushisa injongo eyinhloko ukushintsha ipayipi elingaphakathi metal matrix isakhiwo, ngcono ubulukhuni ipayipi yensimbi engagqwali, kodwa ngenxa yokuthi akukona ngokuyisisekelo ukushintsha morphology ipayipi, futhi ngenxa yalokho abakwazi ngempumelelo ngcono amandla kanye nokuqina ithubhu yensimbi engagqwali.I-stainless steel tube quenching lokushisa kufanele ikhethwe ekushiseni okubucayi kwangempela kwe-30-70℃, ngenxa ye-thermal conductivity empofu yensimbi, isikhathi sokubamba ngokuvamile sikhuphuka kabili kunensimbi.

Phakathi naleso sikhathi, ukuze kuncishiswe ukucindezeleka okucishayo, ngaphambi kokucisha kufanele kube semoyeni ngaphambi kokupholisa, indawo yokucisha uwoyela ngokuvamile isebenzisa amandla ukuze ugweme ukuqhekeka kungathatha uwoyela wangaphambi kwesikhathi (opholiswe ku-200-300).℃) indlela yokupholisa umoya.Ngemva kokucisha ishubhu lensimbi engagqwali, ukwakheka kwe-matrix ye-martensite ingaba noma i-troostite ngemva kokufutheka ibe yi-sorbite, ecishayo, inqubo yokushisa kanye nepayipi lensimbi eqinile eliqinile elinye ipayipi akuwona umehluko obalulekile ngemva kokucisha kufanele kube insimbi engagqwali ethambile.Insimbi engagqwali ingase futhi ibe isothermal quenching isothermal quenching medium kungase kube amafutha ashisayo noma nitrate, isibonelo, at 830-870℃, bese eshisisa acime 280-350℃i-nitrate ye-isothermal.Ipayipi lensimbi quenching noma quenching isothermal, ngcono izakhiwo mechanical kuka ezejwayelekile grey cast iron kuyaphawuleka.

Ukuze kuthuthukiswe ubulukhuni bobuso kanye nokumelana nokugqokwa kwepayipi lensimbi engagqwali, kungaba ukuqina kwendawo yelangabi, ukuqina kwendawo enemvamisa ephezulu kanye nokwelashwa kokushisa kwamakhemikhali, lapho ifrikhwensi ephezulu noma indawo ephakathi nendawo eyenza lukhuni izinhlelo zokusebenza eziningi.Ukuqina okuphezulu, okuphakathi nendawo okuvama okuphakathi nesikhathi sokushisa kufushane, i-oxidation encane kanye ne-decarbonization, ukuwohloka kuncane, nokusebenza okulula, izinga lokushisa lokushisa ngokuvamile lingama-850-950.℃, ipayipi lensimbi engagqwali ngenxa yokungaphatheki kahle okushisayo, nendawo encibilikayo ephansi, izinga lokushisa alisheshi kakhulu, kungenjalo lithambekele ekuqhekekeni noma ekuncibilikeni.Ishubhu lensimbi engenasici eliphakeme, eliphakathi nendawo aligcini nje ngokuthuthukisa ubulukhuni bobuso nokumelana nokugqoka, kodwa futhi lithuthukisa kakhulu amandla okukhathala, likhulise impilo yesevisi, elinye, ithuluzi lomshini lokuxhumana likagesi lokushisisa liyisibonelo esijwayelekile sensimbi engagqwali. ukuqina kwe-tube surface.Ukuze uthole inhlangano enhle ye-matrix yokuqinisekisa ukuthi ishubhu yensimbi engagqwali ngaphakathi kokuqina kobuso kanye nezakhiwo zemishini ingatholakala ngemuva kokuqina okuphezulu, ukwelashwa kokushisa okungaphezulu ngaphambi kokujwayelekile ngaphambi kokujwayelekile noma ukucisha kanye nokwelashwa okushisayo.