Cov khoom xyaw thiab muaj pes tsawg leeg ntawm cov qauv steel phaj ho cuam tshuam rau lawv cov khoom siv kho tshuab, durability, thiab kev ua tau zoo hauv ntau yam kev tsim kho thiab engineering. Hlau, carbon, manganese, silicon, phosphorus, thiab sulfur yog cov khoom xyaw tseem ceeb, lwm yam los yog hom hlau alloy cov ntaub ntawv yuav raug melted rau hauv, uas txiav txim siab lub zog, hardness, toughness, thiab weldability ntawm cov hlau daim hlau. Nws yog ib qho tseem ceeb uas yuav tsum tau ua raws li cov txheej txheem tsim nyog los xyuas kom meej qhov zoo thiab kev ntseeg siab ntawm cov qauv steel phaj.
Cov txheej txheem ntawm cov hlau phaj yog feem ntau teev los ntawm ntau yam thoob ntiaj teb cov qauv thiab cov cai. Cov qauv no txhais cov kev txwv siab tshaj plaws rau txhua qhov khoom, kom ntseeg tau qhov zoo thiab kev ua haujlwm ntawm cov hlau phaj. Cov muaj pes tsawg leeg tuaj yeem sib txawv nyob ntawm qib thiab npaj siv cov phaj steel.
Cov khoom xyaw ntawm Cov Hlau Hlau Phaj:
1. Hlau: Hlau yog cov khoom tseem ceeb nyob rau hauv cov qauv steel daim hlau, accounting rau ib feem tseem ceeb ntawm lawv muaj pes tsawg leeg. Nws muab lub hauv paus lub zog thiab tsim cov qauv matrix, tso cai rau cov phaj steel tiv taus cov khoom hnyav thiab kev ntxhov siab.
2. Cov pa roj carbon monoxide: Cov pa roj carbon monoxide yog lwm qhov tseem ceeb hauv cov hlau phaj, vim nws txhim kho lawv cov tawv tawv, lub zog, thiab tag nrho cov khoom siv kho tshuab. Cov ntsiab lus carbon nyob rau hauv cov qauv hlau phaj feem ntau nyob nruab nrab ntawm 0.2% thiab 2.1%, nyob ntawm seb qhov xav tau lub zog thiab daim ntawv thov.
3. Manganese: Manganese feem ntau yog ntxiv rau cov qauv steel daim hlau los txhim kho lawv cov toughness, hardenability, thiab weldability. Nws tsim cov kev daws teeb meem nrog hlau, txhim kho lub zog thiab cuam tshuam ntawm cov hlau.
4. Silicon: Silicon yog ib qho khoom muaj nyob rau hauv cov qauv steel daim hlau vim nws pab deoxidizing cov hlau molten thaum lub sij hawm tsim khoom. Nws kuj tseem txhim kho lub zog thiab ductility ntawm cov hlau, ua rau nws haum rau ntau yam kev siv.
5. Phosphorus: Phosphorus feem ntau muaj nyob rau hauv me me nyob rau hauv cov qauv steel daim hlau. Nws pab txhim kho lub zog thiab machinability ntawm cov hlau. Txawm li cas los xij, cov ntsiab lus phosphorus ntau dhau tuaj yeem ua rau brittleness thiab txo weldability.
6. Sulfur: Sulfur yog ntxiv nyob rau hauv tsawg npaum li cas rau cov qauv steel daim hlau los txhim kho lawv cov machinability. Txawm li cas los xij, cov ntsiab lus sulfur siab tuaj yeem cuam tshuam rau cov hlau ductility thiab toughness.
