ASTM Lub kaum sab xis, tseem hu ua lub kaum sab xis steel, ua lub luag haujlwm tseem ceeb hauv kev muab kev txhawb nqa thiab kev ruaj khov rau cov khoom xws li kev sib txuas lus thiab cov pej thuam fais fab mus rau cov chaw ua haujlwm thiab cov tsev hlau, thiab kev tsim kho qhov tseeb tom qab gi lub kaum sab xis bar ua kom lawv tuaj yeem tiv taus cov khoom hnyav.
ASTM steel kaum sab xismuaj ob hom, sib npaug thiab tsis sib npaug, nyob ntawm qhov tob ntawm ob txhais ceg. Cov ces kaum tsis sib npaug, tseem hu ua L-puab hlau, feem ntau yog siv thaum ib ceg ntawm lub kaum sab xis ntev dua li lwm qhov, thaum cov ces kaum sib npaug yog siv thaum ob txhais ceg ntev sib npaug, ua rau cov ces kaum ASTM haum rau ntau yam kev siv qauv.
Ntxiv rau kev siv rau kev lag luam thiab kev tsim kho vaj tse,ASTM galvanized lub kaum sab xis bartuaj yeem pom muaj nyob rau hauv cov khoom siv niaj hnub. Txij li cov txee hauv kev lag luam mus rau cov rooj kas fes classic, qhov no qhia txog kev hloov pauv tau thiab kev siv dav ntawm ASTM lub kaum sab xis hauv txhua yam ntawm peb lub neej.
Lub npe ASTM ua kom ntseeg tau tias cov ces kaum ua tau raws li cov qauv nruj uas tau teeb tsa los ntawm American Society for Testing and Materials, txhais tau tias lawv tau tsim thiab kuaj xyuas rau cov khoom siv kho tshuab tshwj xeeb, suav nrog lub zog tawm los, lub zog tensile, thiab elongation.
Lub precision engineering tom qabLub kaum sab xis ASTMua pov thawj tias lub peev xwm los tsim cov hlau kaum sab xis nrog qhov ntev thiab cov khoom siv kho tshuab yog qhov tseem ceeb los xyuas kom meej tias cov qauv ntawm cov tsev, cov pej thuam thiab lwm yam haujlwm engineering. Qhov kev tsim kho precision no kuj ua rau siv cov ntaub ntawv tau zoo, txo cov khib nyiab thiab ua kom zoo dua tag nrho cov txheej txheem kev tsim kho.
Chaw Nyob
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Lub sijhawm tshaj tawm: Lub Xya Hli-31-2024