Thaum txiav txim siab ntawm cov khoom siv rau cov ntsia hlau muaj zog, cov ntsiab lus tseem ceeb yog cov ntawv thov thiab cov kev xav tau ntawm kev ua haujlwm. Cov khoom siv feem ntau muaj xws li carbon steel, tshwj xeeb alloy steels, stainless hlau, thiab titanium, txhua yam uas tau xaiv kom ua tiav qhov zoo tshaj plaws tshuav nyiaj li cas ntawm lub zog, toughness, hnav thiab corrosion kuj, thiab nqi-zoo.
Carbon Steel: Raws li cov khoom siv nrov nrov rau cov ntsia hlau muaj zog, cov pa roj carbon steel muaj lub koob npe nrov rau kev siv nyiaj, tshwj xeeb tshaj yog rau cov ntawv thov uas xav tau lub zog tsis tshaj 10 feem pua. Txawm hais tias nws muaj lub zog zoo heev thiab hardness, nws qhov toughness tsawg txhais tau tias nws tuaj yeem tawg thaum raug cuam tshuam loj heev.
High-performance alloy steels: Nrog rau kev puas tsuaj zoo heev thiab cov qib siab tensile lub zog, cov hlau no ruaj khov nyob rau hauv qhov kub thiab txias thiab yog qhov kev xaiv zoo tshaj plaws rau kev ua haujlwm uas yuav tsum muaj lub zog siab siab tshaj Qib X. Txawm li cas los xij, kev ua tau zoo los nrog qib siab. ntawm hnav tsis kam thiab qib siab tensile lub zog. Txawm li cas los xij, kev ua haujlwm siab yog nrog los ntawm tus nqi siab.
Corrosion-resistant stainless hlau: nyob rau hauv marine engineering, khoom siv kho mob thiab khoom noj khoom haus kev lag luam, stainless hlau high-strength screws vim zoo heev corrosion kuj, muaj peev xwm tiv taus corrosion, kom muaj zog kav ntev. Tsis tas li ntawd, nws zoo molding thiab oxidation kuj yog vim li cas rau nws muaj koob meej.
Titanium alloy: aerospace thiab aviation teb, titanium alloy siab zog screws vim nws lub teeb yuag, siab zog, tsis tshua muaj hardness, kub tsis kam thiab zoo heev corrosion kuj thiab nyiam. Txawm hais tias qhov nyuaj thiab tus nqi ntawm kev ua haujlwm, lawv ua tau zoo nyob rau hauv cov xwm txheej hnyav.
Kev txiav txim siab ntawm cov ntsia hlau qhov chaw ua haujlwm, xws li qhov kub thiab txias thiab cov kev xav tau tshwj xeeb corrosion kuj, nrog rau nws cov moldability, cuam tshuam toughness thiab muaj peev xwm los tiv thaiv kev tawg qeeb, yog cov kauj ruam tseem ceeb hauv kev xaiv cov khoom. Kev xaiv cov khoom siv raug raws li qib thiab cov qauv kev ua haujlwm tshwj xeeb ntawm cov ntsia hlau ua kom cov khoom siv tau zoo tshaj plaws thiab ua kom ntseeg tau tias cov ntsia hlau muaj zog yog tsim los ua kom tau raws li cov qauv xav tau hauv txhua yam ntawm kev ua haujlwm.
