Yiziphi izinkinga okufanele zinakwe lapho ukhetha amabhola angama-304 ensimbi engagqwali

I-Bearing steel ball iyibhola lensimbi elivamile elisetshenziselwa ukuhambisa izingxenye kuma-bearings kanye nezinye izinto zokusebenza zemishini. Inezici zamandla aphezulu, ubulukhuni nokumelana nokugqoka, ngakho-ke ukulawula ngokwenqubo kanye nomphumela kubaluleke kakhulu. Okulandelayo kuzokwethula inqubo yokwelapha ukushisa kanye nomphumela wokuthwala amabhola ensimbi.

Ukwelashwa kokushisa kubhekisela ochungechungeni lwezinqubo zobuchwepheshe ngokushisisa nokupholisa izinto zokushintsha ukwakheka kwenhlangano kanye nezakhiwo zezinto. Inqubo yokwelashwa kokushisa yokuthwala amabhola ensimbi ngokuvamile ihlanganisa izinyathelo ezifana nokuthulisa, ukucisha kanye ne-carburizing.

I-Tempering iyinqubo yokushisisa ibhola lensimbi elithwele elicijile liye ezingeni lokushisa elithile, bese lipholiswa ngesikhathi esifanele. Inhloso yokushisa ukuqeda ingcindezi yangaphakathi ekhiqizwa ngesikhathi sokucisha, ukunciphisa ukuqina, nokuthuthukisa ukuqina kanye nepulasitiki. Izinga lokushisa lokushisa kanye nesikhathi ngokuvamile kunqunywa ngokuvumelana nokwakheka okukhethekile kanye nezidingo zebhola lensimbi elithwele. Ukushisa kwe-Tempering kuphansi kakhulu noma isikhathi sifushane kakhulu, kungase kuholele ekwandeni kokucindezeleka okusalayo, ukushisa okwanele, kuthinte ukusebenza kokuthwala ibhola lensimbi; Ukushisa kwe-Tempering kuphezulu kakhulu noma isikhathi side kakhulu, kuzonciphisa ubulukhuni nokumelana nokugqoka. Ngakho-ke, ukulawulwa kwenqubo yokushisa kubaluleke kakhulu.

Okwesibili, ukucisha kuyinqubo yokwelapha yokushisa ewumgogodla yebhola lensimbi elithwele, ngokushisisa ibhola lensimbi elithwalayo liye ezingeni lokushisa elibucayi, bese lipholisa ngokushesha, ukuze inhlangano yalo ibe yi-martensite noma i-bainite. Ukucisha kungathuthukisa ubulukhuni namandla ebhola lensimbi elithwalayo, kwandise ukumelana nokugqoka kanye nempilo yesevisi. Indawo yokupholisa enqubweni yokucisha ngokuvamile amafutha, amanzi noma igesi, futhi indawo yokupholisa efanele ikhethwa ngokuvumelana nezidingo ezithile zebhola lensimbi elithwalayo. Izinga lokushisa lokucisha, isivinini sokupholisa kanye nokukhethwa kwendawo yokupholisa kuzoba nomthelela obalulekile ekwakhiweni nasekusebenzeni kwebhola lensimbi elithwalayo. Izinga lokushisa eliphezulu kakhulu noma isivinini sokupholisa esisheshayo singase siholele ekuqhekekeni nasekuguqukeni koshintsho; Izinga lokushisa liphansi kakhulu noma isivinini sokupholisa sihamba kancane, okuzothinta ubulukhuni namandla.

I-Carburizing iyinqubo evamile yokuqinisa indawo, ngokucwilisa ibhola lensimbi elithwalayo libe yinhlanganisela equkethe izakhi zekhabhoni zokushisa ukushisa, ukuze izakhi zekhabhoni zingene ebusweni bebhola lensimbi, zandise ubulukhuni balo nokumelana nokugqoka. Izinga lokushisa, isikhathi senqubo yokungcwatshwa kwe-carburizing kanye nokukhethwa kwendawo yokungcwatshwa kwe-carburizing kunemiphumela ebalulekile kugqinsi kanye nokuqina kongqimba lwe-carburizing. Izinga lokushisa eliphezulu kakhulu noma isikhathi eside kakhulu kungaholela ekuvuthukeni, izinga lokushisa eliphansi kakhulu noma isikhathi esifushane kakhulu kuzothinta ikhwalithi nomthelela wongqimba lwe-carburizing.

Umphumela wokwelapha ukushisa wokuthwala amabhola ensimbi ngokuvamile uhlolwa ngezinye izinkomba zokusebenza, njengokuqina, ukumelana nokugqoka, ukuqina nokunye. Umthelela ofanelekile wokwelapha ukushisa kufanele ube ubulukhuni obusesilinganisweni, ukumelana nokugqokwa okuhle, kanye nokucabangela ukuqina ukuze kuqinisekiswe ukuphila nokuthembeka kwebhola lensimbi elithwele ngesikhathi sokusetshenziswa.

Ukulungiswa nokulawulwa kwezinqubo zokwelashwa kokushisa kanye nemiphumela kudinga imishini ethuthukisiwe nobuchwepheshe, kanye nabaqhubi abanolwazi. Ekukhiqizeni kwangempela, kuyadingeka futhi ukulungisa nokwandisa ngokuya ngezinto ezithile kanye nezidingo zenqubo ukuze kuqinisekiswe ukuthi ikhwalithi kanye nokusebenza kokuthwala amabhola ensimbi kuhlangabezana nezindinganiso kanye nezidingo zamakhasimende.