Carbon steel yeeb nkabInternal tsis xws luag yog generated nyob rau hauv cov carbon steel smelting defect smelting thiab casting txheej txheem, xws li segregation, non-metallic inclusions, porosity, shrinkage thiab tawg.

Kev cais

Segregation yog qhov tsis sib xws ntawm cov tshuaj muaj pes tsawg leeg hauv cov hlau, tshwj xeeb yog cov teeb meem xws li sulfur, phosphorus enrichment hauv cov khoom siv.

Non-metallic inclusions

Non-metallic inclusions yog hais txog cov hlau tsis muaj hlau nyob hauv cov hlau uas muaj impurities xws li sulfides thiab oxides.

Stomata

Stomata hais txog cov hlau thiab cov pa roj carbon monoxide uas tsim tawm hauv lub ncuav tsis tuaj yeem khiav tawm thiab nyob hauv cov pores me me hauv qhov ingot.

Lub shrinkage

Shrinkage yog vim cov kua hlau ingot pwm los ntawm sab nraud mus rau sab hauv, lub ntim contraction thaum lub sij hawm solidification hauv qab-up, vim hais tias cov theem poob, qhov kawg solidification ntawm kua steel qhov chaw yuav tsis tau ntxiv rau daim ntawv.

Txhaum

Solidification ntawm cov kua hlau nyob rau hauv qhov kev txiav txim vim txawv ua rau muaj kev ntxhov siab, nro tawg yuav tshwm sim loj dua.