Cov yam ntxwv cuam tshuam rau Hardenability ntawm Hlau

Qhov kev txiav txim siab cuam tshuam rau qhov hardenability ntawm steel yog qhov tseem ceeb ntawm qhov txias txias (vk). Qhov qis dua qhov tseem ceeb ntawm qhov txias txias, qhov ntau dua qhov hardenability. Cov yam cuam tshuam muaj xws li:
1. Cov ntsiab lus carbon: Hardenability yog qhov zoo tshaj plaws nyob ze ntawm eutectoid point, deb ntawm qhov sib txawv S-point.
2. Alloying ntsiab: Tsuas yog Co, yuav luag tag nrho cov alloying ntsiab txo qhov tseem ceeb txias npaum li cas ntawm steel, uas yog, txhim kho lub hardenability ntawm hlau.
3. Austenitization: Qhov kub siab dua, lub sijhawm tuav ntev dua, thiab qhov hnyav dua ntawm cov hlau.
4, Kev txiav txim siab thiab nthuav qhia txoj kev hardenability
Qhov kawg quenching txoj kev GB 225-88
Txoj kev qhia qhov hardenability ntawm steel
Critical Hardening Diameter Dc - Nws yog hais txog qhov siab tshaj plaws txoj kab uas hla ntawm qhov chaw tau txais tag nrho M lossis 50 feem pua ​​M. Raws li qhia hauv daim duab:
5, Kev sib raug zoo ntawm Hardenability thiab Hardening Layer Depth
Nyob rau tib lub sijhawm, qhov siab dua qhov hardenability ntawm steel, ntau dua qhov tob ntawm txheej hardened.
Qhov tob ntawm txheej hardened ntawm lub workpiece tsis tsuas yog txiav txim siab los ntawm hardenability ntawm cov hlau, tab sis kuj los ntawm lwm yam xws li quenching nruab nrab thiab workpiece loj.