Stainless Hlau Fasteners: Qib Qib thiab Cov Cim
Stainless hlau fasteners yog qhov tseem ceeb hauv kev ua kom lub zog thiab kev nyab xeeb ntawm cov qauv thoob plaws ntau yam kev lag luam. Lawv cov qib zog thiab cov cim qhia cov ntaub ntawv tseem ceeb rau kev xaiv cov khoom raug rau cov ntawv thov tshwj xeeb. Cia peb nkag siab tias cov npe no txhais li cas nrog qee qhov piv txwv.
♦ Qib Siab
A2 - Austenitic Stainless Hlau (304/304L)
Fasteners cim "A2" denote austenitic stainless hlau, feem ntau yog qib 304 lossis 304L, uas tsis yog-sib nqus thiab muaj kev tiv thaiv corrosion zoo rau kev siv dav. Piv txwv li, lub cim "A2-70" qhia tias lub fastener ua los ntawm cov khoom no uas muaj qhov tsawg kawg nkaus tensile zog ntawm kwv yees li 700 MPa. Tus naj npawb "70" tshwj xeeb yog hais txog cov cuab yeej cuab tam hauv chav kawm, qhia tias lub fastener no tuaj yeem tiv taus yam tsawg 700 MPa ntawm tensile stress ua ntej tsis ua hauj lwm.
Nyob rau hauv ib qho kev tsim kho sab nraum zoov, A2-70 bolts yuav raug siv los ua kom muaj kev ruaj ntseg hlau vim tias lawv muaj kev tiv thaiv corrosion txaus thaum tuav lub zog txaus rau kev ncaj ncees.
A4 - Austenitic Stainless hlau (316/316L)
Qhov "A4" taw qhia rau qib siab dua austenitic stainless hlau xws li 316 lossis 316L, paub txog lawv cov kev tiv thaiv zoo tshaj rau corrosion, tshwj xeeb tshaj yog nyob rau hauv marine lossis tshuaj ib puag ncig. Ib qho "A4-80" kos npe sawv cev rau lub fastener nrog qhov tsawg kawg nkaus tensile lub zog ntawm 800 MPa, qhia tias nws yog tsim los rau high-lub zog daim ntaub ntawv uas lub zog thiab corrosion kuj tseem ceeb heev.
Marine engineers yuav xaiv A4-80 screws rau kev ruaj ntseg nkoj fittings vim tias cov fasteners no tsis tsuas yog tiv thaiv dej ntsev corrosion tab sis kuj muab lub zog tsim nyog los xyuas kom muaj kev nyab xeeb ntawm kev ua haujlwm hauv hiav txwv hnyav.
♦ Cov cim thiab cim
ISO Standards
Raws li International Organization for Standardization (ISO) cov qauv, fastener markings suav nrog cov ntaub ntawv ntawm cov khoom siv thiab cov khoom siv tshuab. Raws li pom hauv peb cov piv txwv, "A2-70" thiab "A4-80" muab qhov qhia meej ntawm cov khoom thiab nws cov peev xwm ua tau zoo.
DIN Standards
Hauv Deutsches Institut für Normung (DIN), cov lej sib txawv tuaj yeem qhia cov khoom siv thiab khoom vaj khoom tsev. Nws yog ib qho tseem ceeb kom xa mus rau cov ntaub ntawv tsim nyog rau kev txhais lus kom raug.
Cov cim ntxiv
Sib nrug los ntawm cov qib muaj zog, cov hlua khi tuaj yeem nqa lwm cov cim xws li cov chaw tsim khoom, cov lej kub, lossis cov cim ntsuas kev ua raws li CE, qhia txog kev ua raws li European Union txoj cai.
Xaiv txoj cai stainless hlau fastener yuav tsum to taub ob qho tib si qib khoom thiab cov cuab yeej cuab tam hauv chav kawm qhia los ntawm cov cim. Los ntawm kev xav txog yam xws li ib puag ncig raug thiab lub zog xav tau, ib tus tuaj yeem xaiv cov fasteners uas txhim khu kev ntseeg tau thiab kev ua haujlwm ntev ntawm ib qho kev sib dhos.
Ua tsaug rau koj nyeem, yog tias koj xav pom ntau yam uas peb yuav tsum muaj koj tuaj yeem ua raws li cov ntawv txuas hauv qab no!