Kuzimitsa zitsulo, kuzimitsa kowala kwazitsulo zachitsulo zosapanga dzimbiriKutentha kwachitsulo, kuzimitsa zitsulo zachitsulo zosapanga dzimbiri

Kuzimitsa, komwe kumatchedwanso kuuma ndi njira yowotchera ndiyeno kuzirala kwachitsulo (kapena aloyi ena) pa liwiro lalikulu kuti pali kuwonjezeka kwakukulu kwa kuuma, kaya pamwamba kapena ponseponse.Pankhani ya vacuum Quenching, njirayi imachitikira mu ng'anjo za vacuum momwe kutentha kwa 1,300 ° C kumatha kufikira.Njira zozimitsira zidzasiyana malinga ndi zinthu zomwe zimagwiritsidwa ntchito koma kuzimitsa mpweya pogwiritsa ntchito nayitrogeni ndikofala kwambiri.

Kuzimitsa Gasi wa Vacuum:

Munthawi ya Vacuum Gasi Kuzimitsidwa, zinthu zimatenthedwa pakalibe mpweya ndi convection mu sing'anga ya mpweya wa inert (N₂) ndi / kapena kutentha kwa ma radiation popanikiza.Chitsulo chimaumitsidwa ndi mtsinje wa nayitrogeni, momwe kuziziritsa kungadziwike posankha kukakamiza kowonjezera.Malingana ndi mawonekedwe a workpiece ndizothekanso kusankha njira ndi nthawi ya nayitrogeni kuwomba.Kukhathamiritsa kwa nthawi ndi kuwongolera kutentha kwachitsulo kumachitika panthawi yantchito pogwiritsa ntchito ma thermocouples oyendetsa omwe amatha kuyikidwa pa chogwirira ntchito muchipinda chotenthetsera.Chitsulo chomwe chimatenthedwa ndi kutentha mu ng'anjo yopanda kanthu chimapeza zomwe zafotokozedwa zamphamvu ndi kuuma pagawo lonselo, popanda decarburization.Njere za Austenitic ndizabwino ndipo zimagwirizana ndi miyezo yapadziko lonse lapansi.

Pafupifupi ma aloyi achitsulo osangalatsa mwaukadaulo, monga zitsulo zamasika, zitsulo zozizira, zitsulo zozimitsidwa ndi kutentha, anti-friction bearing steels, zitsulo zotentha ndi zida, komanso zitsulo zambiri zosapanga dzimbiri zosapanga dzimbiri. -zitsulo zachitsulo, zimatha kuumitsa motere.

Kuchotsa Mafuta a Vacuum

Vacuum Oil quenching ndikuzimitsa zida zotenthetsera ndi Vacuum oil.Pamene kusamutsidwa kwa ndalamazo kukuchitika pansi pa vacuum kapena chitetezo cha inert-gasi titatha kutsuka ng'anjo, gawolo limatetezedwa nthawi zonse mpaka litamizidwa kwathunthu mumafuta.Chitetezo cha pamwamba ndi chofanana kwambiri kaya kuzimitsa mu mafuta kapena gasi.

Ubwino wawukulu poyerekeza ndi njira zanthawi zonse zozimitsa mafuta mumlengalenga ndikuwongolera koyenera kwa magawo ozizira.Ndi ng'anjo ya vacuum, ndizotheka kusintha magawo omwe amazimitsa - kutentha ndi kugwedezeka - komanso kusintha kupanikizika pamwamba pa thanki yozimitsa.

Kusintha kuthamanga pamwamba pa thanki kumapangitsa kusiyana kwa kuthamanga mkati mwa bafa lamafuta, komwe kumasintha njira yozizirira yoziziritsa mafuta yomwe imadziwika ndi kuthamanga kwamlengalenga.Zowonadi, malo otentha ndi gawo lomwe liwiro lozizira limakhala lalitali kwambiri.Kusintha kwa mphamvu ya mafuta kudzasintha vaporization yake chifukwa cha kutentha kwa katundu.

Kuchepetsa kuthamanga kudzayambitsa zochitika za vaporization, zomwe zimayambira kuwira.Izi zidzawonjezera kuzirala kwa madzi oziziritsira ndikuwonjezera kuuma kolimba motsutsana ndi chikhalidwe cha mumlengalenga.Komabe, kuchuluka kwa nthunzi kumatha kuyambitsa zochitika za sheath ndikupangitsa kuti pakhale kuwonongeka.

Kuchuluka kwa mphamvu mu mafuta kumalepheretsa mapangidwe a nthunzi ndikuletsa kutuluka.Chovalacho chimamatira pagawo ndikuzizira kwambiri mofanana koma mocheperapo.Kuzimitsa mafuta mu vacuum kotero kumakhala kofanana kwambiri ndipo kumabweretsa kusokoneza pang'ono.

Kuthimitsa madzi a vacuum

Njira ngati kuzimitsa mafuta a vacuum, Ndi njira yabwino yothetsera kutentha kwa aluminiyamu, titaniyamu kapena zinthu zina zomwe zimafunika kuzizidwa mwachangu kwambiri.