Cov khoom dab tsi feem ntau suav nrog hauv kev tshuaj xyuas qhov zoo ntawm induction cua sov rauv taws qhov chaw?

Kev tshuaj xyuas zoo ntawm induction cua sov cua sov qhov chaw quenched feem ntau yuav tsum suav nrog xya yam khoom ntawm qhov tsos, tawv, thaj tsam tawv, qhov tob ntawm txheej tawv, cov qauv hlau, deformation thiab tawg.

(1) Kev tshwm sim Cov nplaim ntawm qhov ua kom sov ntawm lub tshuab ua kom sov cua sov yuav tsum tsis muaj qhov tsis xws xws li sintering, tawg, thiab lwm yam. Greyish dawb feem ntau qhia tias qhov ntsuas kub kub dhau lawm, thiab saum npoo yog dub lossis xiav, thiab feem ntau qhia tias qhov ntsuas kub tsis txaus. Hauv zos yaj thiab pom qhov tawg, avalanches, thiab cov ces kaum tuaj yeem pom thaum lub sijhawm tshuaj xyuas. Rau cov khoom me me thiab cov khoom tsim ua qhov loj, qhov tshuaj ntsuam pom tus nqi yog 100%.

(2) Hardness tuaj yeem txheeb xyuas nrog Rockwell hardness tester. Tus nqi-xyuas tus nqi tau txiav txim siab raws li qhov tseem ceeb ntawm cov ntu thiab cov txheej txheem ruaj khov, feem ntau 3%~ 10%, ntxiv los ntawm kev tshuaj xyuas riam lossis 100%kev tshuaj xyuas riam. Thaum lub sijhawm tshuaj xyuas cov riam, tus kws tshuaj xyuas yuav tsum npaj cov txheej txheem ntawm cov tawv sib txawv (feem ntau zoo li lub tes tsho) rau kev sib piv, txhawm rau txhawm rau txhim kho qhov raug ntawm kev tshuaj xyuas cov riam. Hauv kev tsim cov khoom lag luam, cov txheej txheem tshuaj xyuas nyuaj dua qub tau txais kev ntsuas ntsuas tam sim no thiab lwm yam kev tshuaj xyuas.

(3) Thaj chaw tawv yog feem ntau ntsuas nrog tus pas ntsuas lossis tus ntsuas ntsuas rau cov khoom me me, thiab cov nplaim kuj tseem tuaj yeem sib xyaw nrog cov kua qaub kom ua rau thaj tsam tawv dawb tshwm rau kev tshuaj xyuas. Txoj kev kos feem ntau yog siv rau kev kho thiab ntsuas. Hauv kev tsim khoom loj, yog tias lub tshuab rhaub hluav taws xob ntawm induction cua sov cua sov lossis cov txheej txheem uas tswj hwm thaj tsam tawv tawv yog ntseeg tau, feem ntau tsuas yog xav tau kev sampling, thiab qhov piv txwv yog 1% txog 3%.

(4) Qhov tob ntawm txheej tawv Qhov tob ntawm txheej tawv tawv tam sim no feem ntau yog siv los txiav qhov tshwj xeeb tshuaj xyuas ib feem ntawm qhov quenched los ntsuas qhov tob ntawm txheej tawv tawv ntawm ntu no. Yav dhau los, txoj kev metallographic tau siv los ntsuas qhov tob ntawm txheej tawv tawv hauv Suav teb. Tam sim no, raws li GB/T 5617-2005, qhov tob ntawm txheej tawv tawv tau txiav txim siab los ntawm kev ntsuas ntu ntu ntawm txheej tawv tawv. Kev tshuaj xyuas qhov tob ntawm txheej tawv tawv feem ntau xav tau kev puas tsuaj rau ntu. Yog li ntawd, tshwj tsis yog tshwj xeeb qhov tshwj xeeb thiab cov cai tshwj xeeb, tsuas yog kev tshuaj xyuas random feem ntau ua tiav. Kev tsim khoom loj ntawm cov khoom me me tuaj yeem tshawb pom rau 1 daim ntawm ib qho kev hloov lossis 1 daim rau txhua 100, 500 daim ua, thiab lwm yam. cov cuab yeej ntsuas tsis raug puas tsuaj, qhov piv txwv tuaj yeem nce ntxiv, txawm tias 1% kev tshuaj xyuas.

(5) Metallographic qauv Cov ntaub ntawv ntawm induction cua sov cua sov qhov chaw tua hluav taws feem ntau yog cov pa roj carbon nruab nrab thiab cov hlau cam khwb cia, thiab microstructure ntawm qhov chaw quenched feem ntau sib xws rau qhov nyuaj. Rau qee qhov tseem ceeb, cov txheej txheem microstructure tau hais nyob hauv cov qauv tsim, feem ntau yog txhawm rau tiv thaiv cov ntxhib martensite uas tsim los ntawm kev ua kom sov, thiab tib lub sijhawm tiv thaiv cov ferrite uas tsis tau daws los ntawm qhov kub.

(6) Kev hloov pauv deformation feem ntau yog siv los txheeb xyuas cov ncej. Feem ntau, lub hauv paus nruab nrab thiab cov ntsuas ntsuas tau siv los ntsuas qhov sib txawv ntawm qhov seem tom qab quenching. Lub pendulum sib txawv raws li qhov ntev thiab txoj kab nruab nrab ntawm cov ntu. Qhov uas ua kom sov los ntawm cov cua sov ua kom sov tuaj yeem ncaj, thiab qhov nyiaj ntawm qhov cuam tshuam tuaj yeem loj dua me ntsis. Feem ntau, qhov sib txawv ntawm qhov pendulum muaj feem cuam tshuam nrog kev sib tsoo tom qab quenching. Qhov sib tsoo me me, qhov me me tso cai pendulum sib txawv. Txoj kab uas hla ntawm qhov dav dav feem ntau yog 0.4 ~ 1mm. Cia qhov viav vias sib txawv ntawm qhov seem tom qab ncaj yog 0.15 ~ 0.3mmo

(7) Cov ntu nrog cov kab nrib pleb tseem ceeb dua yuav tsum tau tshuaj xyuas los ntawm cov khoom sib nqus sib nqus tom qab quenching, thiab cov chaw tsim khoom nrog cov cuab yeej zoo dua tau siv phosphors los qhia qhov tawg. Cov khoom uas tau dhau los tshuaj xyuas cov khoom sib nqus yuav tsum tau demagnetized ua ntej nkag mus rau cov txheej txheem tom ntej.