Cov txheej txheem ntawm cov kav dej twj tso kua mis yog nyob rau hauv qhov chaw, nrog kev ua tiav, lub zog ruaj khov, thiab kev xaiv cov khoom siv nruj, ua rau lawv siv dav hauv ntau yam lag luam. Feem ntau hais lus, muaj plaub yam kev cai rau kev xaiv cov khoom siv ntawm cov kav dej twj tso kua mis:
1. Nws muaj lub cev muaj zog tiv thaiv kev ntxhov siab uas tshwm sim thaum ua haujlwm
2. tuaj yeem ua tau zoo forged rau hauv ntau yam duab
3. Nws muaj qee qhov kev ua tau zoo hauv corrosion kuj, kub tsis kam, thiab txias tsis kam.
4. Nws muaj qee yam txiaj ntsig kev lag luam.
Lub raj xa dej puas yuav tsum tau ua los ntawm cov hlau cam khwb cia lossis cov khoom siv corrosion-resistant?
Thaum xaiv cov khoom siv rau cov kav dej, kev txiav txim siab yuav tsum tau muab rau lub twj tso kua mis lub qhov hluav taws xob, qhov kub thiab txias, tshuaj lom neeg cov khoom, thiab cov khoom sib xyaw. Thaum xaiv cov cam khwb cia hlau los yog corrosion-resistant cov ntaub ntawv, lub pipeline twj tso kua mis chaw tsim tshuaj paus muab cov nram qab no cov ntaub ntawv:
Thaum tshem tawm cov kua uas tsis muaj corrosive lossis cov tshuaj alkaline dav dav ntawm chav tsev kub hauv qab kev ua haujlwm siab ntawm 4MPa, xaiv cov hlau cam khwb cia zoo tib yam. Rau cov kav dej ntau theem, qhov sib txawv ntawm qhov sib txawv ntawm qhov sib txawv tuaj yeem ua rau cov zawv zawg ntawm cov theem, xws li cov phaj sib npaug, yog li cov khoom siv corrosion-resistant alloy yuav tsum tau xaiv rau cov zawv zawg Cheebtsam.
Thaum lub siab ua hauj lwm siab tshaj 9MPa, corrosion-resistant cov ntaub ntawv xws li forged steel feem ntau siv. Rau kev xaiv cov khoom siv rau lub twj tso kua mis lub cev siv cov tshuaj corrosion thiab cov khoom ua kom puas, cov ntaub ntawv tsim nyog lossis cov ntaub ntawv tsim nyog yuav tsum raug xaiv rau kev sim ua haujlwm tiag tiag. Raws li cov ntaub ntawv hnav-tiv taus, cov khoom siv hlau tawv thiab cov ntaub ntawv elastic tsis yog xim hlau feem ntau tau siv yav dhau los. Cov qub muaj xws li high chromium cam khwb cia hlau, siab manganese cam khwb cia hlau, dawb cam khwb cia hlau, thiab npib tsib xee chromium txias hard cam khwb cia hlau, thaum lub tom kawg mas siv tuab mos roj hmab los yog yas pasted rau hlau li hauv ob sab phlu.