Muaj kaum feem ntau siv quenching txoj hauv kev kho cua sov, uas yog ib qho nruab nrab (dej, roj, cua) quenching; Ob chav nruab nrab quenching; Qib quenching ntawm martensite; Qib quenching ntawm martensite hauv qab Ms point; Bainite isothermal quenching txoj kev; Composite quenching txoj kev; Ua ntej txias isothermal quenching txoj kev; Ncua txias quenching txoj kev; quenching thiab tus kheej tempering txoj kev; Txau quenching txoj kev, thiab lwm yam.

1、 Ib qho nruab nrab (dej, roj, cua) quenching

Ib qho nruab nrab (dej, roj, cua) quenching: quenching workpieces uas tau rhuab mus quenching kub rau hauv ib tug quenching nruab nrab kom txias tag. Qhov no yog txoj kev yooj yim tshaj plaws quenching, feem ntau yog siv rau carbon steel thiab alloy steel workpieces nrog cov duab yooj yim. Qhov nruab nrab quenching yuav tsum raug xaiv raws li lub tshav kub hloov coefficient, hardenability, loj, zoo, thiab lwm yam.

3、 Kauj Ruam quenching ntawm martensite Kauj Ruam quenching ntawm martensite: cov hlau yog austenitized, thiab ces muab tso rau hauv cov kua nruab nrab (ntsev da dej los yog alkali da dej) nrog ib tug kub me ntsis siab los yog qis tshaj lub qaum martensite taw tes ntawm cov hlau, thiab khaws cia rau lub sij hawm tsim nyog. . Thaum cov txheej txheem sab hauv thiab sab nrauv ntawm cov khoom hlau ncav cuag qhov nruab nrab qhov kub thiab txias, lawv raug coj tawm rau cua txias, thiab cov undercooled austenite maj mam hloov mus rau hauv martensite. Feem ntau siv rau cov me me workpieces nrog cov duab complex thiab nruj deformation yuav tsum tau, txoj kev no kuj yog feem ntau siv rau quenching high-speed steel thiab siab alloy steel pwm. 4、 Qib quenching ntawm martensite hauv qab Ms point yog graded quenching ntawm martensite hauv qab Ms point: thaum lub da dej kub qis dua Ms ntawm cov hlau siv rau lub workpiece tab sis siab dua Mf, lub workpiece txias sai dua nyob rau hauv da dej, thiab tib cov txiaj ntsig tseem tuaj yeem ua tau. tau txais thaum qhov loj dua. Feem ntau siv rau qhov loj me me uas tsis muaj hardenability steel workpieces. 5、 Bainite isothermal quenching method Bainite isothermal quenching method: quench lub workpiece mus rau hauv da dej ntawm qhov qis bainite kub ntawm cov hlau mus rau isothermal, thiaj li hais tias nws muaj peev xwm undergo tsawg bainite transformation, thiab feem ntau cia nws nyob rau hauv da dej rau 30 ~ 60min. bainite isothermal quenching txheej txheem muaj peb kauj ruam tseem ceeb: ① austenitizing; ② Kev kho cua txias tom qab austenitization; ③ Bainite isothermal kev kho mob; Feem ntau siv nyob rau hauv cov hlau alloy, siab carbon steel me me qhov chaw, thiab hlau hlau castings. 6、 Composite quenching txoj kev

Compound quenching txoj kev: lub workpiece yog quenched rau hauv qab Ms kom tau martensite nrog ntim feem ntawm 10% ~ 30%, thiab ces isothermal nyob rau hauv qis bainite cheeb tsam kom tau martensite thiab bainite lug rau workpieces nrog loj hla ntu, uas yog feem ntau siv rau alloy cuab yeej steel workpieces. 7、 Precooling Isothermal Quenching Method Precooling Isothermal Quenching Method: Kuj tseem hu ua Temperature Rise Isothermal Quenching, qhov chaw yog thawj zaug txias hauv qhov kub qis (ntau dua Ms) da dej, thiab tom qab ntawd hloov mus rau chav da dej kub dua kom nkag mus rau isothermal transformation ntawm austenite. Haum rau steel qhov chaw uas tsis zoo hardenability los yog workpieces nrog loj qhov ntev uas yuav tsum tau isothermal quenching.

8、 Ncua txias quenching txoj kev

Txoj kev ua kom txias qeeb qeeb: Cov khoom ua ntej txias rau qhov kub me ntsis siab dua Ar3 lossis Ar1 hauv huab cua, dej kub, lossis ntsev da dej, thiab tom qab ntawd raug rau ib qho nruab nrab quenching. Feem ntau siv rau qhov chaw uas muaj cov duab sib txawv, sib txawv tuab hauv ntau qhov chaw, thiab yuav tsum tau deformation tsawg.

9, quenching tus kheej tempering txoj kev: Thaum tshav kub kub tag nrho cov txheej txheem workpieces, tab sis thaum lub sij hawm quenching, tsuas yog cov seem uas yuav tsum tau hardened (feem ntau yog cov ua hauj lwm qhov chaw) yog immersed nyob rau hauv quenching tov kom txias. Tos kom txog thaum cov khoom uas tsis yog immersed ploj, thiab tam sim ntawd tshem tawm lawv kom txias hauv huab cua. Txoj kev quenching thiab tus kheej tempering siv cov cua sov uas tsis yog tag nrho txias los ntawm cov tub ntxhais kom hloov mus rau saum npoo, ua rau saum npoo yuav tsum tempered. Cov cuab yeej feem ntau siv los tiv thaiv kev cuam tshuam, xws li chisels, punches, rauj, thiab lwm yam. 10、 Txau quenching txoj kev: Ib txoj kev quenching uas dej yog txau rau ntawm qhov chaw ua haujlwm, thiab cov dej ntws tuaj yeem loj lossis me me, nyob ntawm qhov xav tau quenching qhov tob. Txoj kev tshuaj tsuag quenching tsis tsim cov yeeb yaj kiab vapor rau ntawm qhov chaw ua haujlwm, uas ua kom cov txheej txheem sib sib zog nqus tau ntau dua li quenching hauv dej Xitong. Feem ntau yog siv rau hauv zos nto quenching.