Dab tsi yuav tsum tau ceev faj thaum vuam stainless hlau yeeb nkab fittings, stainless hlau luj tshib, stainless hlau tees, stainless hlau reducers thiab lwm yam yeeb nkab fittings?
- Txhawm rau tiv thaiv kev cuam tshuam ntawm intergranular vim cua sov, qhov vuam tam sim no yuav tsum tsis txhob siab dhau-li 20% tsawg dua qhov uas siv rau carbon steel electrodes. Lub arc yuav tsum tsis txhob ntev dhau lawm, thiab lub interlayer yuav tsum tau txias sai sai, nrog nqaim welds yog qhov kev xaiv zoo tshaj plaws.
- Stainless hlau yeeb nkab fittings ua ntau nkig tom qab vuam thiab yog nquag tawg. Yog tias cov yeeb nkab steel hlau raug siv rau vuam, preheating saum 300 degree thiab qeeb txias txog li 700 degree tom qab vuam yuav tsum tau ua. Yog tias qhov vuam tsis tuaj yeem kho cua sov tom qab vuam, lwm yam stainless hlau yeeb nkab fittings yuav tsum tau siv.
- Txhawm rau txhim kho corrosion kuj thiab weldability, tsim nyog tus nqi ntawm stabilizing ntsiab xws li Ti, Nb, thiab Mo yog ntxiv rau stainless hlau yeeb fittings. Qhov no ua rau zoo dua weldability piv rau cov qauv stainless hlau yeeb nkab fittings. Thaum siv cov chromium stainless hlau electrodes, preheating saum 200 degree thiab tempering ntawm 800 degree tom qab vuam yuav tsum tau ua. Yog tias qhov vuam tsis tuaj yeem kho cua sov, yuav tsum siv chromium-nickel stainless hlau electrodes.
- Stainless hlau yeeb nkab fittings muaj zoo heev corrosion kuj thiab oxidation tsis kam thiab yog dav siv nyob rau hauv kev tsim tshuaj, chiv, roj av, thiab kev kho mob machinery.
- Stainless hlau yeeb nkab fittings tuaj nrog titanium-calcium type lossis low-hydrogen type coatings. Hom titanium-calcium tuaj yeem siv tau rau ob qho tib si AC thiab DC vuam, tab sis qhov tob tob tob tob thaum lub sij hawm AC vuam, thiab cov electrode yuav overheat. Yog li ntawd, DC fais fab mov yog nyiam thaum twg los tau.
- Stainless hlau yeeb nkab fittings muaj qee yam kev tiv thaiv corrosion (tiv thaiv oxidizing acids, organic acids, thiab cavitation), nrog rau cov cua sov thiab hnav tsis kam. Lawv feem ntau yog siv rau hauv cov chaw nres tsheb fais fab, cov nroj tsuag tshuaj, roj av, thiab lwm yam khoom siv. Txawm li cas los xij, stainless hlau yeeb nkab fittings muaj qhov tsis zoo weldability, yog li ceev faj yuav tsum tau them rau cov txheej txheem vuam thiab xaiv cov vuam vuam uas tsim nyog ua ntej kev kho cua sov.
- Lub vuam pas nrig yuav tsum tau ua kom qhuav thaum ua haujlwm. Titanium-calcium type rods yuav tsum tau qhuav ntawm 150 degree rau 1 teev, thaum qis-hydrogen hom qws yuav tsum tau qhuav ntawm 200-250 degree rau 1 teev. (Lawv yuav tsum tsis txhob qhuav dua, vim qhov no tuaj yeem ua rau cov txheej txheem tawg thiab tev tawm yooj yim.) Ceev faj ntawm cov roj thiab lwm yam kab mob uas ua rau lub vuam pas nrig txheej, vim qhov no tuaj yeem ua rau cov ntsiab lus carbon ntawm cov vuam thiab cuam tshuam rau qhov zoo. ntawm welment.
- Thaum vuam stainless hlau yeeb nkab fittings, rov ua cua sov tuaj yeem ua rau carbides rau precipitate, txo cov corrosion kuj thiab mechanical properti.
