Kev ntsuas kom txo qis Softening ntawm cov hlau phaj: Anti Softening yam ntxwv ntawm hlau

Nws tsuas yog nyob ntawm nws cov tshuaj muaj pes tsawg leeg, microstructure, thiab cov txheej txheem ua. Rau thermally txiav Cheebtsam, cov khoom me me, qhov kev pheej hmoo ntawm tag nrho cov khoom softening. Yog tias qhov kub ntawm cov hlau phaj siab tshaj 200-250 degree C, qhov hardness ntawm steel phaj yuav txo.
Txoj kev txiav: Thaum cov hlau phaj txiav cov khoom me me, cov cua sov muab los ntawm rab phom vuam thiab preheating yuav sib sau ua ke hauv cov khoom ua haujlwm. Qhov loj me me uas tsis tuaj yeem pom thaum txiav, qhov loj ntawm qhov txiav workpiece yuav tsum tsis pub tsawg tshaj 200mm, txwv tsis pub muaj kev pheej hmoo ntawm softening ntawm workpiece. Txoj hauv kev zoo tshaj plaws los tshem tawm qhov kev pheej hmoo ntawm softening yog los ntawm kev txiav txias, xws li dej dav hlau txiav. Yog tias qhov kev txiav thermal yog tsim nyog, plasma lossis laser txiav yuav tsum tau xaiv. Qhov no yog vim nplaim taws muab cua sov ntau rau lub workpiece, yog li ua kom qhov kub thiab txias ntawm workpiece.
Txoj kev txiav hauv qab dej: Ib txoj hauv kev zoo los txwv thiab txo qhov ntau ntawm thaj chaw softening, siv dej txias rau cov phaj steel thiab txiav nto thaum lub sij hawm txiav. Yog li ntawd, cov hlau phaj tuaj yeem txiav hauv dej lossis txau nrog dej ntawm qhov chaw txiav. Txoj kev txiav hauv qab dej tuaj yeem xaiv ntawm plasma lossis nplaim taws. Underwater txiav muaj cov yam ntxwv hauv qab no:
Me me txiav tshav kub cuam tshuam cheeb tsam;
Tiv thaiv lub hardness ntawm tag nrho cov workpiece los ntawm kev txo qis;
Txo deformation ntawm txiav workpiece;
Tom qab txiav, lub workpiece tuaj yeem txias ncaj qha.