Martensitic qib quenching

Martensitic graded quenching: Cov hlau yog austenitized, thiab tom qab ntawd muab tso rau hauv cov kua nruab nrab (ntsev da dej los yog alkali da dej) nrog qhov kub thiab txias me ntsis los yog qis dua lub Martens taw tes ntawm cov hlau, khaws cia rau lub sijhawm tsim nyog, thiab sab hauv thiab sab nrauv. qhov chaw ntawm cov hlau raug kho. Tom qab txheej txheej mus txog qhov nruab nrab kub, nws raug tshem tawm rau cua txias, thiab lub supercooled austenite maj mam hloov mus rau hauv cov txheej txheem quenching ntawm martensite. Nws feem ntau yog siv rau cov me me workpieces nrog cov duab complex thiab nruj deformation yuav tsum tau, thiab high-speed steel thiab high-alloy steel cov cuab yeej thiab tuag kuj feem ntau quenched los ntawm txoj kev no.