Aluminium Ob Chav Spindle 1605 Rolled

Piv txwv li, thaum lub sij hawm quenching thiab ceev txias ntawm forgings, vim hais tias cov txheej saum npoo yog thawj zaug txias mus rau lwm qhov chaw, txheej txheej saum npoo hloov ntawm austenite mus rau martensite, thiab lub ntim swells, tab sis cov tub ntxhais tseem nyob rau hauv lub xeev austenite, tiv thaiv txheej txheej los ntawm qhov chaw. o, yog li lub forging Cov tub ntxhais yog nyob rau hauv tensile kev nyuaj siab thiab nto yog nyob rau hauv compressive kev nyuaj siab; thaum txias txuas ntxiv, qhov kub ntawm qhov chaw txo qis thiab tsis o lawm. Raws li cov tub ntxhais tau hloov mus rau hauv martensite, lub ntim yuav txuas ntxiv mus. Yog li ntawd, nws yuav raug thaiv los ntawm qhov chaw. Ib feem yog raug compressive kev nyuaj siab, thiab txheej txheej yog raug rau tensile kev nyuaj siab. Tom qab txias thiab sib sau, qhov kev ntxhov siab no tseem nyob hauv qhov forging thiab dhau los ua qhov kev ntxhov siab seem.

Yog li ntawd, thaum lub sij hawm quenching thiab txias txheej txheem, cov kev hloov ntawm thermal stress thiab theem transformation kev nyuaj siab yog opposite, thiab ob residual stresses nyob rau hauv lub forging kuj opposite. Kev sib xyaw ua ke ntawm thermal stress thiab theem transformation stress yog hu ua quenching internal stress. Thaum qhov seem ntawm qhov kev ntxhov siab nyob rau hauv lub forging tshaj qhov taw tes tawm ntawm cov hlau, nws yuav ua rau cov yas deformation ntawm lub workpiece, uas yuav ua rau distortion ntawm forging.

Thov hu rau peb ntawm zhang@pride-cnc.com