Hauv thaj chaw ntawm cov dej hauv nroog thiab cov dej ntws thiab cov khoom siv thauj khoom, cov kav dej hlau tau dav siv vim lawv qhov kev ua tau zoo tag nrho. Txawm li cas los xij, nyob rau hauv qis - qhov kub thiab txias ib puag ncig, kev ua haujlwm ntawm cov kav dej thiab lawv cov khoom tuaj yeem cuam tshuam, ua rau lawv cov kev ua haujlwm tau zoo yog qhov tseem ceeb hauv kev xaiv thiab kev tsim kho. Kab lus no yuav txheeb xyuas cov yam ntxwv ntawm cov kav hlau kav ntawm qhov kub thiab txias, txoj hauv kev uas lawv cov kev ua tau zoo cuam tshuam, thiab cov ntsiab lus tseem ceeb.
Cov yam ntxwv thiab qhov zoo ntawm cov kav hlau kav hlau
Cov kav dej hlau yog tsim los siv cov txheej txheem tshwj xeeb casting, nrog hlau, carbon, thiab silicon ua lawv cov khoom tseem ceeb. Lawv muab ntau qhov zoo tshaj plaws:
Siab zog thiab toughness:
Cov kav dej hlau tsis yog tsuas yog muaj lub zog tensile siab xwb tab sis kuj zoo heev toughness, ua rau lawv tswj kev ncaj ncees thaum raug kev kub ntxhov thiab kev cuam tshuam.
Muaj zog Corrosion Resistance
Lawv zoo heev corrosion kuj tso cai rau ductile hlau kav los tiv thaiv yaig los ntawm av, dej, thiab lwm yam xov xwm, yog li ncua lawv cov kev pab cuam lub neej. Nyob rau hauv qis- qhov kub thiab txias, tus nqi corrosion qeeb qeeb, ua kom lub sijhawm ntev - haujlwm ruaj khov ntawm cov kav dej.
Sealing Performance zoo heev
Lub T- hom hloov pauv tau siv cov roj hmab gasket rau kev sib khi, tiv thaiv cov dej xau thiab ua kom muaj kev nyab xeeb ntawm cov kav dej.
Qhov cuam tshuam ntawm qis-Qhov kub ib puag ncig ntawm cov kav hlau kav hlau
Hauv qhov chaw qis - qhov kub thiab txias, cov khoom siv hluav taws xob ntawm cov kav hlau txuas tau raug hloov pauv, tab sis lawv qhov kev ua haujlwm tsis zoo:
Hloov hauv Toughness
Qhov kub qis ua rau me ntsis txo qis hauv qhov toughness ntawm cov kav hlau kav hlau thiab qhov nce hauv brittleness. Txawm li cas los xij, txij li cov kav hlau yeeb nkab muaj qhov sib txawv ntawm qhov toughness thiab ductility, lawv tseem tuaj yeem tiv taus qee qhov kev ntxhov siab ntawm qhov kub thiab txias.
Kev hloov hauv lub zog thiab hardness
Nyob rau hauv qis - qhov kub thiab txias ib puag ncig, lub zog thiab hardness ntawm cov kav hlau txuas ntxiv, thiab lawv cov compressive kuj tseem txhim kho.
Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias qhov kub qis yuav ua rau cov roj hmab gasket nthuav dav lossis cog lus. Yog tias ntsia tsis raug, qhov khoob yuav ua rau ntawm cov yeeb nkab sib txuas, ua rau xau. Yog li ntawd, tshwj xeeb yuav tsum tau them nyiaj rau txoj kev teeb tsa thaum txhim kho cov kav hlau txuas hauv qhov qis - qhov kub thiab txias.