Kev faib tawm cov yeeb nkab steel hlau
Kev faib tawm ntawm cov kav hlau stainless: cov kav hlau xaim hlua hlau tsis xeb thiab cov kav hlau txuas (kav dej steel hlau) yog ob hom kev yooj yim. Raws li txoj kab uas hla ntawm cov yeeb nkab steel, nws tuaj yeem faib ua cov kav dej sib txuas thiab cov kav dej tshwj xeeb. Hloov cov kav dej steel yog siv dav, tab sis kuj tseem muaj qee cov xwm fab, duab plaub, semicircular, hexagonal, cov duab ob tog sib npaug, octagonal thiab lwm yam tshwj xeeb zoo li cov kav hlau.
Rau cov kav xa dej steel hauv qab cov kua dej, kev kuaj hydraulic thiab kev kuaj hluav taws xob yuav tsum kuaj xyuas lawv lub siab tsis kam thiab qhov zoo. Tsis muaj to, soaking lossis nthuav nyob rau hauv lub siab teev tseg yog tsim nyog. Qee qhov kav hlau yuav tsum tau ua raws li cov qauv lossis kev xav tau ntawm tus neeg yuav. Crimping test, flaring test, flattening test, thiab lwm yam.
Seamless stainless hlau yeeb nkab, tseem hu ua cov hlau tsis xeb hlau tsis xeb, yog ua los ntawm cov hlau tsis sib haum lossis cov raj xa hluav taws xob los ntawm cov kab hluav taws xob los ua kom cov hlab ntsws, thiab tom qab ntawd kub dov, txias txias lossis kos kom txias. Qhov tshwj xeeb ntawm seamless steel yeeb nkab yog qhia nyob rau hauv millimetres ntawm sab nraud * phab ntsa tuab.
Lub npe tag nrho ntawm 304 stainless hlau yeeb nkab yog SUS304 stainless hlau yeeb nkab.
SUS304 stainless hlau yeeb nkab yog cov yeeb nkab steel hlau ua los ntawm cov khoom siv qib Asmeskas. Qeb hauv tsev yog sib npaug rau 0Cr19Ni9 lub pas hlau tsis muaj steel, thiab nws feem ntau yog hloov 0Cr18Ni9.
Cov txheej txheem los tiv thaiv xeb ntawm stainless hlau yog tias cov ntsiab lus tsim ua cov yeeb yaj kiab oxide ntom, uas tiv thaiv cov pa sib chwv thiab tiv thaiv oxidation txuas ntxiv. Yog li stainless hlau tsis yog" stainless" ;.
Qhov xeb ntawm 304 cov khoom yuav muaj qhov laj thawj hauv qab no:
1. Muaj cov chloride ions nyob hauv thaj chaw siv.
Cov tshuaj chloride ions muaj dav, xws li ntsev, hws, dej hiav txwv, hiav txwv hiav txwv, av thiab lwm yam. Stainless hlau corrodes sai sai nyob rau hauv muaj cov chloride ions, txawm tias ntau dua li cov pa roj carbon zoo tib yam.
Yog li no, muaj cov cai siv rau thaj chaw siv ntawm cov hlau tsis huv, thiab nws yuav tsum tau muab so kom tsis tu ncua kom tshem tau hmoov av thiab ua kom huv thiab qhuav.
316 thiab 317 stainless hlau (saib hauv qab no rau cov khoom ntawm 317 stainless hlau) yog molybdenum uas muaj cov khoom ntxaij hlau. Cov ntsiab lus ntawm molybdenum nyob rau hauv 317 stainless hlau yog me ntsis siab dua qhov ntawd hauv 316 stainless hlau. Vim yog lub molybdenum hauv hlau, qhov kev ua haujlwm tag nrho ntawm cov hlau no zoo dua 310 thiab 304 stainless hlau. Hauv qab qhov kub thiab txias, thaum lub siab ntawm sulfuric acid qis dua 15% thiab siab dua 85%, 316 Stainless hlau muaj qhov siv ntau. 316 stainless hlau kuj muaj zoo chloride corrosion zog, yog li nws yog feem ntau siv rau hauv cov chaw ib puag ncig.
Nrog txoj kev loj hlob ntawm kev lag luam kev lag luam, daim ntawv thov ntawm cov yeeb nkab steel hlau tau tseem ua ntau dua thiab nrov dua. Nws yuav muaj tseeb coj txog kev ua lag luam txhim kho hauv txhua daim teb.
Kev ntsuas qhov hnyav ntawm cov yeeb nkab steel hlau: W=sab nraud taub-phab ntsa thickness x phab ntsa thickness x 0.02491.
Txij li qhov tsim muaj ntawm stainless hlau thaum pib ntawm lub xyoo pua no, nws cov neeg sib tw tau envied. Lub cev tsis xeb hlau yuav tsis tsim xeb, pitting, xeb lossis hnav. Stainless hlau tseem yog ib qho ntawm cov ntaub ntawv nrog lub zog siab dua ntawm cov ntaub ntawv hlau rau kev tsim kho. Vim tias cov hlau tsis muaj xeb tau zoo, nws tuaj yeem ua cov yam ntxwv ruaj khov kho kom ruaj khov ntawm kev ncaj ncees ntawm kev tsim qauv engineering. Cov chromium-uas muaj tus ntxaij hlau tseem ua ke sib xyaw tshuab thiab lub siab extensibility, yooj yim rau cov txheej txheem thiab tsim khoom, thiab tuaj yeem ua tau raws li qhov xav tau ntawm cov kws kes duab vajtse thiab cov qauv tsim qauv.