Solution Treatment yog dab tsi?
Kev daws teeb meem ntawm stainless hlau seamless kav, tseem hu ua kua annealing los yog kev kho cua sov, yog ib tug tseem ceeb kauj ruam nyob rau hauv lub manufacturing txheej txheem kom optimize cov khoom ntawm mechanical zog thiab corrosion kuj.
Kev kho mob yog hais txog cov txheej txheem kev kho cua sov uas cov hlau yog rhuab mus rau qhov kub thiab txias thiab khaws cia ntawm qhov kub thiab txias nyob rau hauv ib-theem cheeb tsam. Cov theem dhau los yog tag nrho yaj mus rau hauv cov khoom sib tov, thiab tom qab ntawd maj mam txias kom tau txais cov tshuaj supersaturated.
Cov nyhuv ntawm cov tshuaj kho ntawm stainless hlau seamless kav
1. Ua kom lub ss seamless raj sib npaug
Qhov no yog qhov tseem ceeb tshwj xeeb tshaj yog rau cov khoom siv raw, vim tias qhov kub thiab txias ntawm txhua ntu ntawm cov yeeb nkab kub dov sib txawv, uas ua rau cov qauv tsis sib xws. Thaum kub siab, kev lag luam kev lag luam ntawm atoms nce thiab cov tshuaj lom neeg muaj pes tsawg leeg zoo ib yam. Tom qab txias txias, ib qho kev sib txuam ntau dua ib-theem qauv tau txais.
2. Tshem tawm kev ua haujlwm nyuaj kom cia ua haujlwm txias ntxiv
Los ntawm kev daws kev daws teeb meem, cov qauv twisted lattice rov qab los. Lub elongated thiab tawg nplej pib crystallize dua, cov kev ntxhov siab sab hauv raug tshem tawm, lub zog tensile ntawm cov hlau hlau txuas ntxiv txo qis, thiab elongation maj mam nce.
3. Corrosion kuj ntawm ss yeeb nkab seamless
Lattice defects txo cov corrosion kuj ntawm stainless hlau kav vim yog tsim thiab sib cais ntawm carbides thaum ua hauj lwm txias. Tom qab cov khoom siv kho mob, qhov corrosion kuj ntawm stainless seamless yeeb nkab yog rov qab los rau nws lub xeev zoo tshaj plaws.
Cov yam ntxwv ntawm Kev daws teeb meem ntawm Stainless Hlau Seamless Yeeb Nkab
1. Kev daws qhov kub thiab txias. Raws li cov yam ntxwv ntawm cov tshuaj muaj pes tsawg leeg ntawm seamless ss yeeb nkab, cov khoom kub ntawm stainless hlau yuav tsum nyob nruab nrab ntawm 950-1150 degrees Celsius kom ua tiav cov nyhuv softening. Txo qhov hardness ntawm stainless hlau kom qis dua 220HV kom tau raws li cov kev cai zoo ntawm cov kav dej.
2. Lub sij hawm daws teeb meem. Thaum lub sij hawm cua sov txheej txheem ntawm austenitic stainless seamless yeeb nkab, raws li lub sij hawm cua sov nce, cov residual ferrite cov ntsiab lus nyob rau hauv cov hlau txo. Yog li ntawd, cov kev kho mob ntawm stainless hlau yeeb fittings yuav tsum tau tswj nyob ib ncig ntawm 1050 degree kom saturate cov pa roj carbon thiab txhim kho corrosion kuj.
3. Kev daws teeb meem ceev thiab txuag hluav taws xob, thermal conductivity ntawm stainless hlau yog tsawg heev. Lub thermal conductivity ntawm chav tsev kub tsuas yog 27% ntawm cov pa roj carbon steel. Yog li ntawd, cov txheej txheem cua kub qis ntawm cov hlau tsis muaj steel yuav tsum tau nqa tawm maj mam. Yog tias cov cua kub ceev heev, deformation yuav tshwm sim. Piv txwv li, yog tias qhov kub ntawm ss 316 seamless yeeb nkab yog nyob ib ncig ntawm 1100 degree thiab tuav lub sij hawm ntev, cov ntsiab lus ferrite residual yuav txo qis.
