Lub quenching ntawm iav yog kom sov cov khoom iav mus rau qhov hloov pauv kub T, siab dua 50 ~ 60 C, thiab tom qab ntawd nrawm thiab sib npaug ntawm qhov txias txias (quenching nruab nrab) (xws li cua txias quenching, kua-txias quenching, thiab lwm yam.) Cov txheej thiab txheej txheej yuav tsim kom muaj qhov kub thiab txias gradient, thiab qhov tshwm sim ntawm kev ntxhov siab yog so vim qhov dej khov ntawm cov iav, yog li qhov kub thiab txias tab sis tsis muaj kev ntxhov siab yog tsim. Lub zog tiag tiag ntawm iav yog qis dua li qhov theoretical zog. Raws li cov txheej txheem tawg, cov iav tuaj yeem ua kom muaj zog los ntawm kev tsim cov txheej txheem kev ntxhov siab ntawm cov iav nto (tseem hu ua lub cev tempering), uas yog qhov tshwm sim ntawm cov khoom siv tshuab ua lub luag haujlwm tseem ceeb.
Tom qab txias, qhov kub thiab txias gradient tau maj mam tshem tawm, thiab qhov kev ntxhov siab tau hloov mus rau qhov kev ntxhov siab zoo dua, uas ua rau muaj qhov sib txawv ntawm cov txheej txheem kev ntxhov siab ntawm cov iav. Qhov loj ntawm qhov kev ntxhov siab sab hauv no muaj feem xyuam nrog lub thickness ntawm cov khoom, tus nqi txias thiab qhov nthuav coefficient. Yog li ntawd, nws yog ntseeg hais tias thaum nyias iav thiab iav nrog ib tug tsawg expansion coefficient yog ntau nyuaj rau quench quenched iav khoom, yam ntxwv yam ntxwv ua lub luag hauj lwm tseem ceeb; , nws yog cov khoom siv kho tshuab uas ua lub luag haujlwm tseem ceeb. Thaum huab cua siv los ua qhov nruab nrab quenching, nws yog hu ua cua txias quenching; Thaum cov kua roj xws li roj, silicon lub tes tsho, paraffin, resin, tar, thiab lwm yam yog siv los ua qhov nruab nrab quenching, nws yog hu ua kua-txias quenching. Tsis tas li ntawd, cov ntsev xws li nitrates, chromates, sulfates, thiab lwm yam yog siv los ua quenching media. Cov hlau quenching nruab nrab yog hlau hmoov, hlau hlau mos txhuam, thiab lwm yam.
Post lub sij hawm: Mar-30-2023