Induction preheating tshuab feem ntau yog siv ua ntej hardening los yog vuam tej yam kev mob. Rau cov txheej txheem quenching preheating, ib feem uas ua cov txheej txheem induction quenching tom qab preheat kev kho mob, tuaj yeem daws qhov teeb meem ntawm qhov kub ntawm qhov deformation thaum lub sijhawm ua haujlwm.

  Tsis tas li ntawd, nws tuaj yeem txo cov workpiece distortion thaum lub sij hawm hardening txheej txheem, txhim kho cov txheej txheem hardening, nce hardening txheej thickness, tau lub workpiece zoo tagnrho metallographic qauv thiab residual compressive kev nyuaj siab, thiab tshem tawm cov quenching tawg. Preheating rau cov txheej txheem vuam tuaj yeem ua kom qis qis qis ntawm qhov tseem ceeb ntawm qhov vuam txias txias, tiv thaiv kom dhau-hardening, thiab txo qhov ductility ntawm vuam thiab tshav kub-tsim cheeb tsam. Nws tuaj yeem txo qis kev ntxhov siab ntawm cov vuam thiab cov hlau uas nyob ib sab, tshwj xeeb tshaj yog rau cov pob qij txha welding siab.