Cov khoom siv SPCC hauv cov kav hlau txuas uas tib neeg siv feem ntau muaj npe nrov dua, tab sis qhov tsis zoo ntawm cov kav hlau welded kuj tseem muab faib ua qhov zoo thiab tsis zoo. Cov tib neeg yuav tsum xaiv cov meej mom thaum xaiv cov kav dej welded. Cov hauv qab no yog cov lus qhia ntxaws ntxaws txog cov txheej txheem kev soj ntsuam zoo ntawm cov kav dej welded.
Lub welded yeeb nkab nws tus kheej muaj qhov tshwj xeeb muaj peev xwm tiv taus xeb thiab acid-pib tshuaj lom neeg. Nws tuaj yeem muaj cov organic chemical sib txawv ntawm tus neeg txo qis. Nws txheej txheej sab nraud muaj huab cua nyias tab sis ntom ntom. Cov yeeb yaj kiab oxide muaj cov teebmeem luv thiab ntev thiab feem ntau tiv thaiv cov kev tawm tsam rov rau ntau txoj kev. Hauv tag nrho cov txheej txheem ntawm cov hlau dov, yuav muaj cov npoo ntawm cov yeeb nkab txuas nrog. Cov nplaim ntsej muag tuaj yeem faib ua ob peb hom:
1). Welded steel yeeb nkab tawg hla cov tuab ntawm cov cam khwb cia slab, thiab cov kab nrib pleb hauv qhov chaw equiaxed siv lead ua qhov nruab nrab ntawm qhov nruab nrab ntawm cov raj yog cov khoom tawg zoo raws cov kab lis ciam teb. Cov kab nrib pleev nyob rau sab hauv arc sab feem ntau ua rau tawg cov kab sib txuam, thiab cov kab nrib pleb ntawm lub npoo sab nraud feem ntau ua raws li cov kab nrib pleb. Crystal tawg.
2) Cov kab nrib pleb ib thaj tsam ntawm cov nplej yog nyob hauv qhov kev nyuaj siab ntxhov siab, thiab qhov sib tsoo tawg yog qhov tawg pleb uas ua kom cov kua siv lead ua puas tsuaj thiab yog qhov txiaj ntsig ntawm sab nraud quab yuam. Piv txwv dab tsi dab tsi kev tiv thaiv yuav tsum tau muab coj los soj ntsuam nrog qhov no zoo ntawm lub xeev tawg? Hauv qab no yog cov lus qhia ntxaws ntxaws rau txhua tus:
1. Txhim kho qhov arc meej ntawm lub tshuab casting kom tiv thaiv tsis txhob muaj kev ntxhov siab hauv av ntawm nplooj ntawv nplooj siab thaum ntxov khov thiab tsis txhob tawg nyob ntawm thaj tsam cov nplej.
2. Siv cov hau kev xws li ntsuas nrawm rau lub forging tus nqi thiab nthuav tawm cov dej txias kom txaus, nce cov dej ntws, thiab txo qhov kub kom tsis pub dhau ib qho kev tswj kom tswj tau kom txias txias.
3. Kev tswj nruj ntawm cov hlau sib xyaw ntawm cov qauv hlau, tshwj xeeb hauv kev tswj cov pa roj carbon thiab dej cov ntsiab lus.
4. Txhim kho lub tshuab hluav taws xob hluav taws xob sib xyaw ua ke ntawm cov hlau sib xyaw, thiab tswj tau qhov superheat ntawm cov hlau nchuav hauv cov tundish hauv qab 40 ℃.
