1. Cov tshuaj muaj pes tsawg leeg ntawm 35 # seamless steel yeeb nkab yog dab tsi?
Teb: Cov tshuaj muaj pes tsawg leeg ntawm 35 # seamless steel yeeb nkab yog nruj me ntsis tswj raws li nram no: C (0.32%-0.40%), Si (0.17%-0.37%), Mn (0.50%-0.80%), P Tsawg dua los yog sib npaug rau 0.035%, S Tsawg dua los yog sib npaug rau 0.035%. Nws cov ntsiab lus carbon yog siab tshaj 10 # thiab 20 #, uas muab nws zoo dua lub zog thiab hardness, thaum tuav ib tug tej yam kev mob ntawm toughness.
2. 10 # seamless steel yeeb nkab puas tuaj yeem siv rau hauv siab -cov kav dej siab?
Teb: Tsis yog. 10# seamless steel yeeb nkab yog tsawg- carbon steel nrog tsis tshua muaj tensile lub zog thiab yield zog, uas tsis tuaj yeem dais siab. Nws tsuas yog tsim nyog rau kev thauj mus los ntawm cov dej siab tsawg (tsawg dua los yog sib npaug ntawm 1.6MPa), xws li cov kav dej hauv tsev thiab cov kav dej siab tsawg -. Siab - cov kav dej siab yuav tsum xaiv siab - lub zog seamless steel kav xws li 20G lossis 15CrMoG.
3. Cov kev kho cua sov dab tsi feem ntau yog siv rau 45 # seamless steel yeeb nkab?
Teb: Cov kev kho cua sov ntau rau 45 # seamless steel yeeb nkab yog quenching thiab tempering (QT) thiab normalizing. quenching thiab tempering kev kho mob tuaj yeem txhim kho nws cov khoom siv dav dav: quenching ntawm 840-860 degree, tempering ntawm 550-650 degree, uas ua rau cov yeeb nkab steel muaj lub zog siab thiab zoo toughness. Normalizing kev kho mob (cua sov rau 850-870℃thiab cua txias hauv huab cua) feem ntau yog siv los kho cov nplej thiab txhim kho qhov sib xws ntawm cov qauv, uas tsim nyog rau kev ua haujlwm dav dav.
4. Qhov txawv ntawm 20 # seamless steel yeeb nkab thiab 20G seamless steel yeeb nkab yog dab tsi?
Teb: Qhov sib txawv tseem ceeb nyob rau hauv tus qauv thiab daim ntawv thov scenario: 20 # seamless steel yeeb nkab ua raws li GB / T 8163 tus qauv, uas yog siv rau kev thauj mus los thiab cov qauv dav dav; 20G seamless steel yeeb nkab ua raws li GB / T 3087 tus qauv, uas yog lub boiler raj tshwj xeeb steel nrog nruj raws li cov kev cai ntawm cov tshuaj muaj pes tsawg leeg thiab txhua yam khoom, thiab yuav siv tau nyob rau hauv nruab nrab thiab tsis tshua muaj siab boilers (ua hauj lwm siab tsawg tshaj li los yog sib npaug rau 5.9MPa, ua hauj lwm kub tsawg tshaj li los yog sib npaug rau 450 degree) rau chav tsheb thauj mus los.
5. Dab tsi yog daim ntawv thov ntawm 15CrMoG seamless steel yeeb nkab?
Teb: 15CrMoG seamless steel yeeb nkab yog ib qho qis- alloy tshav kub- cov hlau tsis muaj zog, uas muaj Cr thiab Mo cov ntsiab lus, yog li nws muaj qhov zoo siab - kub lub zog thiab oxidation tsis kam. Nws ntev -lub sij hawm ua hauj lwm kub tuaj yeem ncav cuag 550 degree, thiab nws yog dav siv nyob rau hauv high - kub thiab siab - cov khoom siv siab hauv roj av, tshuaj, hluav taws xob thiab lwm yam lag luam, xws li boiler superheater raj, reheater raj thiab siab - kub chav pipelines.
