Dab tsi yog Cov Cai Rau Kev Siv Lub Rauv Quenching

Lub quenching rauv yog lub cub tawg siv los ua kom sov cov khoom ua ntej quenching. quenching yog txheej txheem ntawm cua sov lub workpiece nyob rau hauv lub cub tawg mus rau ib tug quenching kub saum toj no lub ntsiab lus tseem ceeb thiab tswj nws rau ib lub sij hawm ntawm lub sij hawm, ces sai sai tshem lub workpiece ntawm lub cub tawg thiab muab tso rau hauv ib tug quenching tov (roj los yog dej) rau quenching. . Lub tshav kub ntawm lub cub tawg tuaj yeem yog hluav taws xob thiab roj, thiab qhov ntsuas kub tuaj yeem ntsuas los ntawm lub thermocouple. Lub qhov cub uas siv hluav taws xob, roj, thiab cov roj ua kua tuaj yeem tswj tau thiab tswj qhov kub thiab txias siv cov cuab yeej siv.

Yav dhau los, aluminium alloy extruded khoom raug kho nrog nitrate (KNO₃) da dej. Nrog rau qhov ntev ntawm aluminium alloy extruded khoom, txoj kev quenching no tau phased tawm. Tam sim no, feem ntau hom quenching rauv ob qho tib si hauv tsev thiab txawv teb chaws yog ntsug quenching rauv, nrog lub quenching tank ncaj qha nyob rau hauv lub cub tawg. Qhov cub quenching no muaj cov yam ntxwv hauv qab no:
(1) Ua ntej quenching, cov khoom extruded tuaj yeem ua tau zoo sib xws thiab nrawm nrawm;
(2) Muab cov khoom tso rau hauv lub pas dej quenching hauv lub sijhawm luv tshaj plaws;
(3) Nws tuaj yeem zam kev khoov thiab sib tw deformation ntawm cov khoom extruded tshwm sim los ntawm tus kheej qhov hnyav thiab cua sov, uas yog qhov zoo rau kev tuav cov khoom zoo li qub;
(4) Cov khoom siv ntawm cov khoom extruded tom qab quenching yog uniform.

Cov kev pab cuam ntawm quenching rauv
(1) Kev siv sab hauv tsev.
(2) Qhov kub thiab txias nyob rau hauv thaj tsam ntawm -5 degree txog 40 degree .
(3) Lub hli nruab nrab cov av noo nyob rau hauv qhov chaw siv yuav tsum tsis txhob ntau tshaj 85%, thiab lub hli nruab nrab kub yuav tsum tsis txhob ntau tshaj 30 degree.
(4) Tsis muaj cov plua plav conductive, cov pa hluav taws xob tawg, lossis cov roj corrosive uas tuaj yeem ua rau cov hlau thiab rwb thaiv tsev nyob ib puag ncig.
(5) Tsis muaj kev vibration lossis turbulence.