AHSS steel yog siab heev-lub zog steel, tseem hu ua advanced high-strength steel, thiab nws cov lus Askiv abbreviation yog AHss (Advanced High Strength steel). Nyob rau hauv thib peb tsab ntawm International Iron thiab Steel Institute (IISI) Advanced High-Strength Steel Application Guide, high-strength steel yog muab faib ua cov pa high-strength steel (Conventional Hss) thiab advanced high-strength steel (AHSS).
Txhais
Cov tsoos high-strength steel feem ntau suav nrog carbon-manganese steel (C-Mn), ci-hardened (BH steel), high-strength interstitial-free (HSS-IF) steel thiab high-strength low alloy (HSLA) steel; AHSS steel feem ntau suav nrog dual-theem steel (DP), kev hloov pauv ntawm cov yas yas (TRIP) steel, martensitic (M) steel, complex theem steel (CP), kub tsim (IF) steel thiab tetrahedron induced plasticity (TWIP) steel; lub zog ntawm AHSS yog li ntawm 500MPa mus rau 1500MPa Nws muaj lub zog nqus zoo thiab ua lub luag haujlwm tseem ceeb hauv kev sib sib zog nqus thiab txhim kho kev nyab xeeb ntawm tsheb. Nws tau siv dav hauv kev lag luam tsheb, feem ntau yog siv hauv cov khoom siv hauv tsheb, qhov chaw nyab xeeb thiab cov khoom siv ntxiv xws li A / B / C pillars. , qhov rooj sills, pem hauv ntej thiab nram qab bumpers, qhov rooj tiv thaiv kev sib tsoo kab teeb, hla kab, kab ntev ntev, lub rooj zaum swb thiab lwm yam; DP steel yog thawj zaug tsim los ntawm Swedish SSAB Steel Phaj Co., Ltd. hauv xyoo 1983.
Advanced siab zog steel
Kev tsim khoom ntawm tag nrho cov high-speed steels yuav tsum tswj cov cua txias ntawm austenite theem lossis austenite ntxiv rau ferrite theem. Qhov no tuaj yeem ua tau los ntawm kev sib tsoo kub ntawm qhov chaw peripheral (xws li cov khoom kub dov) los yog hauv zos nyob rau hauv lub qhov cub tawg tas li. Txias (nruam annealing lossis kub dip txheej ntawm cov khoom). Martensitic steels yog tsim los ntawm quenching ceev uas ua rau feem ntau ntawm cov austenite hloov mus rau theem martensite. Ferrite ntxiv rau martensite dual-theem steel yog tsim los ntawm kev tswj nws cov cua txias kom ua rau austenite theem (pom nyob rau hauv kub dov steel) los yog ferrite + martensite dual-theem (pom nyob rau hauv nruam annealing thiab kub dip txheej). Hauv cov hlau) qee qhov khaws cia austenite tau hloov mus rau hauv ferrite ua ntej nws txias sai heev thiab hloov mus rau hauv martensite. TRIP steels feem ntau yuav tsum tau khaws cia ntawm qhov nruab nrab isothermal tej yam kev mob los tsim bainite. Cov ntsiab lus silicon-carbon ntau dua ua rau TRIP steel muaj ntau heev khaws cia austenite nyob rau hauv qhov kawg microstructure. Multiphase steels kuj ua raws li cov txheej txheem cua txias zoo sib xws, tab sis nyob rau hauv cov ntaub ntawv no cov khoom siv tshuaj raug hloov kho kom tsim cov austenite me me thiab tsim cov precipitates uas ntxiv dag zog rau martensite thiab bainite theem.
Lwm qhov kev hloov pauv hauv AHSS cov ntsiab lus yog kev siv cov kab lus "ultra siab zog steel." UHSS tau dhau los ua cov ntawv luv luv, txhais tau tias nws muaj lub zog tensile tsawg kawg yog ob mus rau peb zaug siab dua li qub 440 MPa AHSS steel.
GNEE STEEL yog lub ntiaj teb ua cov chaw tsim khoom tshwj xeeb steel thiab lub zog siabautomotive hlau, tiv tauj pebtam sim no!
