Heat magani na bazara karfe

Karfe na bazaraza a iya raba zafi kafa bazara da sanyi kafa bazara bisa ga daban-daban forming hanyoyin.

Zafi magani na thermoforming marẽmari. Ana amfani da maɓuɓɓugan zafi don yin maɓuɓɓugan ruwa na manyan sifofi ko hadaddun. Gabaɗaya, quenching dumama yana haɗuwa tare da kafawa. Wato dumama zafin jiki ne dan kadan mafi girma fiye da quenching zafin jiki (830 ℃ ~ 880 ℃), bayan dumama, zafi nada forming ne da za'ayi, sa'an nan kuma sharar da zafi ne quenched, da kuma a karshe matsakaici zafin jiki tempering ne da za'ayi a 350 ℃ ~ 450 ℃, don samun tempered tretinite tsarin.

Ingancin saman karfen bazara yana da matukar mahimmanci saboda matsakaicin juzu'i da damuwa. Ƙarƙashin ƙasa shine mafi yawan abin da aka haramta, zai rage ƙarfin gajiyar karfe sosai. Sabili da haka, zafin zafin jiki, lokacin zafi da matsakaicin zafi ya kamata kula da zaɓi da sarrafawa. Bugu da kari, harbi peening bayan tempering ne ma da amfani don kawar da surface lahani kamar decarburization, fasa, inclusions da markings, da kuma karfafa surface samar da saura compressive danniya da kuma inganta gajiya ƙarfi na bazara.

Zafi magani na sanyi kafa marẽmari. Cold-kafa spring karfe ne na farko bayan quenching, tempering jiyya, ko bayan isothermal quenching, sa'an nan ta hanyar sanyi zane don samun high ƙarfi karfe waya, sa'an nan amfani da wannan karfe waya kai tsaye zuwa mirgine da ake bukata spring. Wannan bazara an daina kafa bayan quenching magani, kawai 180 ~ 370 ℃ low da matsakaici zazzabi tempering, domin ya kawar da ciki danniya lalacewa ta hanyar kafa. The giciye-sashe size irin spring karfe ne kananan, bisa ga quenching da tempering tsari kafin forming aka raba zuwa mai tempering karfe waya da m isothermal magani sanyi kõma karfe waya. Na farko shine maganin kashe mai + matsakaicin zafin jiki; Ƙarshen yana nufin wanka mai gubar (500 ~ 550 ℃) isothermal quenching don yin canjin sotenite, sannan ta hanyar ƙarfafa zane mai sanyi da yawa.

Idan diamita na waya na bazara ya yi girma sosai, kamar Φ> 15mm, kauri farantin h> 8mm, za a sami quench opaque sabon abu, wanda zai haifar da raguwar iyakacin ƙarfi, ƙarfin gajiya, don haka ƙarfin ƙarfe na bazara dole ne a daidaita shi zuwa diamita na kayan bazara.