SPA-C weathering steel yogtsis tsim los rau ntev - lub sij hawm siab - kub kev pab cuam; nws yog aqis-cov pa roj carbon atmospheric corrosion-resistant structural steelrau ib txwm -kub siv sab nraum zoov.
1. Kev txwv kub
Tsim nyog ntau yam: Chav ntsuas kub txog li120-150 ° F (248-302 ° F)tsis tu ncua.
Tsis pom zoo:Long-lub sij hawm siv saum toj no200℃(392℃F).
Tsis nyab xeeb: Sustained kub siab saum toj no300 degreeyuav ua kom pom tseeb softening, oxidation, thiab kev ua haujlwm degradation.
2. Vim li cas nws tsis haum rau qhov kub thiab txias
Thaum kub kub, lubmechanical zog (lub zog, hardness)poob qis heev.
Ceev ceevsiab -kub oxidationtshwm sim, sib sau tuab, xoob oxide scale es tsis txhob ntawm ib txwm tiv thaiv patina.
Nws alloy system (Cu, Cr, P) yog optimized rauatmospheric corrosion ntawm chav tsev kub, tsis kub tsis kam lossis siab -kub oxidation tsis kam.
3. Thaum tseem siv tau
luv-lub sij hawm, qee zaus qis- theem tshav kub raug (piv txwv li, nyob ze cov khoom sov so, hnub ci cua sov).
Tsis yog -load- cov kabmob qhov chaw uas lub zog poob ntawm cov cua sov me me yog qhov tau txais.
4. Yuav siv dab tsi los hloov qhov kub
Yog koj xav taukub tsis kam + corrosion kujntawm qhov kub thiab txias:
Thaum tshav kub kub-resistant alloy steels
Stainless hlau (xws li 304, 316, 310S)
Tshwj xeeb siab - kub huab cua steels (tsis yog SPA-C)
