Pali njira khumi zomwe zimagwiritsidwa ntchito pozimitsa moto munjira zochizira kutentha, zomwe ndi sing'anga imodzi (madzi, mafuta, mpweya) kuzimitsa; Kuzimitsa kwapakatikati kawiri; Kutsekedwa kwa martensite; Kuzimitsidwa kwamagulu a martensite pansi pa Ms point; Bainite isothermal kuzimitsa njira; Njira yozimitsa kompositi; Pre kuzirala isothermal kuzimitsa njira; Kuchedwa kuziziritsa njira kuzimitsa; Njira yochepetsera komanso kuchepetsa thupi; Njira yozimitsira utsi, etc.

1、 Single sing'anga (madzi, mafuta, mpweya) kuzimitsa

Single sing'anga (madzi, mafuta, mpweya) kuzimitsa: Kuzimitsa zida zogwirira ntchito zomwe zatenthedwa mpaka kuzimitsa kutentha m'njira yozimitsa kuti ziziziziritsa. Iyi ndi njira yosavuta yozimitsira, yomwe imagwiritsidwa ntchito popanga zitsulo za carbon ndi alloy zitsulo zokhala ndi mawonekedwe osavuta. Sing'anga yozimitsa idzasankhidwa molingana ndi kutentha kwa kutentha, kuuma, kukula, mawonekedwe, ndi zina za gawolo.

3、 Khwerero kuzimitsidwa kwa martensite Gawo kuzimitsa kwa martensite: chitsulo ndi austenitized, ndiyeno kumizidwa mu madzi sing'anga (kusamba mchere kapena alkali kusamba) ndi kutentha pang'ono apamwamba kapena m'munsi kuposa chapamwamba martensite mfundo ya zitsulo, ndi kusungidwa kwa nthawi yoyenera. . Zigawo zamkati ndi zakunja za zitsulo zikafika kutentha kwapakati, zimatengedwa kuti ziziziziritsa mpweya, ndipo austenite yosazizira imasinthidwa pang'onopang'ono kukhala martensite. Nthawi zambiri amagwiritsidwa ntchito pazigawo zing'onozing'ono zokhala ndi mawonekedwe ovuta komanso zofunikira zopindika, njira iyi imagwiritsidwanso ntchito kwambiri kuzimitsa chitsulo chothamanga kwambiri komanso chitsulo cha aloyi. 4、 Grade quenching wa martensite m'munsimu Ms mfundo ndi graded quenching wa martensite pansipa Ms mfundo: pamene kusamba kutentha ndi otsika kuposa Ms zitsulo ntchito workpiece koma apamwamba kuposa Mf, workpiece kuzirala mofulumira mu kusamba, ndi zotsatira zomwezo akhoza akadali. kupezedwa pamene kukula kuli kokulirapo. Amagwiritsidwa ntchito popanga zitsulo zazikuluzikulu zocheperako. 5、 Bainite isothermal quenching njira Bainite isothermal kuzimitsira njira: kuzimitsa workpiece mu kusamba pa m'munsi kutentha kwa chitsulo kuti isothermal, kuti adutse otsika bainite masinthidwe, ndipo kawirikawiri kusunga mu kusamba kwa 30 ~ 60min. The bainite isothermal quenching ndondomeko ali ndi njira zitatu: ① austenitizing; ② Kuzirala mankhwala pambuyo austenitization; ③ Bainite isothermal mankhwala; Amagwiritsidwa ntchito mu aloyi zitsulo, mkulu mpweya zitsulo zing'onozing'ono kukula mbali, ndi ductile chitsulo castings. 6、 Njira yothetsera kompositi

Njira yozimitsira: chogwirira ntchito chimazimitsidwa mpaka pansi pa Ms kuti mupeze martensite ndi gawo la voliyumu ya 10% ~ 30%, kenako ndi isothermal m'chigawo chotsika cha bainite kuti mupeze zida za martensite ndi bainite za zida zogwirira ntchito zokhala ndi magawo akulu akulu, omwe amagwiritsidwa ntchito kwambiri aloyi chida zitsulo workpieces. 7、 Njira Yoziziritsira Kutentha kwa Isothermal Kuzimitsa Njira Yozimitsira Isothermal: Imadziwikanso kuti Kutentha Kukwera Isothermal Kuzimitsa, magawo amayamba ataziralitsidwa mumadzi osambira otsika (akuluakulu kuposa a Ms), kenako amasamutsidwa kumalo osambira otentha kwambiri kuti asinthe kusintha kwa isothermal kwa austenite. Oyenera mbali zachitsulo zosalimba bwino kapena zogwirira ntchito zokhala ndi miyeso yayikulu yomwe imafunikira kuzimitsa kwa isothermal.

8、 Kuchedwa kuziziritsa njira kuzimitsa

Njira yoziziritsira yochedwetsedwa: Zigawozo zimazimitsidwa ndi kutentha pang'ono kuposa Ar3 kapena Ar1 mumlengalenga, madzi otentha, kapena kusamba kwa mchere, kenako kuzimitsidwa kamodzi. Amagwiritsidwa ntchito pazigawo zokhala ndi mawonekedwe ovuta, makulidwe osiyanasiyana m'magawo osiyanasiyana, komanso kumafuna mapindikidwe ochepa.

9, Njira yoziziritsira: Kutenthetsa zida zonse zomwe zakonzedwa, koma pakuzimitsa, zigawo zokhazo zomwe zimafunika kuumitsidwa (nthawi zambiri zimagwira ntchito) zimamizidwa munjira yozimitsa kuti ziziziziritsa. Dikirani mpaka mbali zosamizidwa zitatha, ndipo nthawi yomweyo zichotseni kuti ziziziziritsa mumlengalenga. Njira yozimitsira ndi kudziletsa imagwiritsa ntchito kutentha komwe sikunazilidwe pakatikati kupita kumtunda, zomwe zimapangitsa kuti pamwamba pakhale mpweya. Zida zomwe zimagwiritsidwa ntchito nthawi zambiri kuti zipirire, monga tchipisi, nkhonya, nyundo ndi zina. 10、 Njira yozimitsira utsi: Njira yozimitsa yomwe madzi amawathira pamalo ogwirira ntchito, ndipo kutuluka kwamadzi kumatha kukhala kwakukulu kapena kochepa, kutengera kuya kofunikira kozimitsa. Njira yozimitsira kupopera sipanga filimu ya nthunzi pamwamba pa workpiece, zomwe zimatsimikizira kuti kusanjikiza kozama kumapezedwa kuposa kuzimitsa m'madzi a Xitong. Amagwiritsidwa ntchito kwambiri kuzimitsa m'deralo.