Piv nrog rau lub cev cov ntaub ntawv ntawm cov hlau tsis muaj steel thiab cov carbon steel, qhov ntom ntawm carbon hlau yog me ntsis siab tshaj cov ferritic thiab martensitic stainless steels, thiab me ntsis qis dua li ntawm cov hlau plawv tsis xeb; lub cev tiv taus yog raws cov pa roj, ferrite yam, thiab hom martensitic. Txiav txim siab nce nrog austenitic stainless hlau; qhov kev txiav txim ntawm linear expansion coefficient kuj zoo ib yam, austenitic stainless hlau yog lub siab tshaj thiab cov pa carbon tsawg tsawg; carbon steel, ferritic thiab martensitic stainless hlau yog sib nqus, cov hlau uas tsis muaj hlau nplaum yog cov khoom tsis muaj hlau nplaum Yog tias, thaum lub zog ua haujlwm txias, ua rau muaj qhov hloov ntawm cov magnetite, nws yuav ua rau muaj hlau nplaum, thiab cov kev kho kom sov yuav siv los tua cov martensite qauv thiab rov qab nws cov cuab yeej tsis muaj hlau nplaum. Austenitic Shenzhen stainless hlau screws muaj cov nram qab no yam ntxwv piv rau cov hlau:
Shenzhen stainless hlau screws
1) High cathode tus nqi, kwv yees li 5 zaug ntawm cov pa hlau.
2) Loj linear expansion coefficient, 40% loj dua cov hlau, thiab raws li qhov kub nce siab, tus nqi ntawm cov hlau tsis muaj hlau ntsia hlau expansion coefficient nce raws li.
3) Thermal thermal conductivity, li 1/3 ntawm cov steel.