Kev ruaj ntseg zoo ntawm tuab phab ntsa steel yeeb nkab ua nyob rau hauv Suav teb
Alloy steel yeeb nkab yog tsuas yog siv rau high-pressure thiab high-temperature pipelines thiab cov khoom siv xws li fais fab nroj tsuag, nuclear fais fab nroj tsuag, high-pressure boiler, high-temperature superheater thiab reheater. Nws yog ua los ntawm cov pa roj carbon zoo, alloy cov qauv hlau thiab cov hlau tsis muaj cua sov-resistant los ntawm kub dov (extrusion, expansion) los yog txias dov (kos duab). Qhov zoo tshaj plaws ntawm cov yeeb nkab steel hlau yog tias nws tuaj yeem rov ua dua 100%, uas yog raws li lub teb chaws lub tswv yim ntawm kev tiv thaiv ib puag ncig, kev txuag hluav taws xob thiab kev txuag nyiaj. Lub teb chaws txoj cai txhawb kev nthuav dav ntawm daim ntawv thov teb ntawm high-pressure alloy yeeb nkab. Tam sim no, kev siv cov raj hlau alloy hauv Suav teb tsuas yog ib nrab ntawm tag nrho cov hlau hauv cov teb chaws tsim. Kev nthuav dav ntawm daim ntawv thov teb ntawm cov raj hlau alloy muab qhov chaw dav dav rau kev txhim kho kev lag luam. Raws li kev tshawb fawb ntawm pawg kws tshaj lij ntawm cov yeeb nkab steel ceg ntawm Tuam Tshoj Tshwj Xeeb Steel Association, qhov kev thov rau high-pressure alloy yeeb nkab ntev nyob rau hauv Tuam Tshoj yuav nce 10-12% ib xyoos ib zaug. Alloy yeeb nkab yog txhais raws li cov yeeb nkab steel raws li cov khoom siv (xws li cov khoom siv). Raws li lub npe qhia, nws yog cov yeeb nkab ua los ntawm alloy; Seamless yeeb nkab yog txhais raws li cov txheej txheem ntawm cov yeeb nkab steel (seamless seam). Dab tsi yog qhov txawv ntawm cov yeeb nkab seamless yog seamless yeeb nkab, nrog rau ncaj seam welded yeeb nkab thiab kauv yeeb nkab.
16-50 Mn
27 Sib
40 Cr
12-42CrMo
16 Mn
12Cr1MoV
T91
27 Sib
30 CrMo
15 CrMo
20 G
Cr9 hmo
10 CrMo910
15 hmo 3
15 CrMoV
35 CrMoV
45CrMo
15 CrMoG
12 CrMoV
45cr ua
50 Cr
45crnimo et al.
Cov kav dej hlau muaj qhov hollow thiab tau dav siv los ua cov kav dej thauj khoom, xws li cov kav dej rau kev thauj cov roj, roj, roj, roj, dej thiab qee yam khoom siv. Piv nrog rau cov khoom siv hlau xws li cov hlau puag ncig, cov yeeb nkab steel hlau muaj qhov hnyav dua thaum nws khoov thiab lub zog torsional zoo ib yam. Alloy steel yeeb nkab yog ib qho kev lag luam steel, uas yog dav siv los tsim cov khoom siv thiab cov khoom siv kho tshuab, xws li roj laum yeeb nkab, tsheb sib txuas ncej, tsheb kauj vab ncej thiab steel scaffold siv hauv kev tsim kho. Ua cov nplhaib nrog cov yeeb nkab steel tuaj yeem txhim kho cov khoom siv tus nqi, ua kom yooj yim rau kev tsim khoom, txuag cov ntaub ntawv thiab cov sijhawm ua haujlwm, xws li dov bearing nplhaib, lub tes tsho jack, thiab lwm yam tam sim no, steel yeeb nkab tau dav siv rau kev tsim khoom. Alloy steel yeeb nkab kuj yog ib qho khoom siv tsis tau rau txhua yam riam phom. Cov phom phom thiab lub thoob yuav tsum tau ua los ntawm cov yeeb nkab steel. Alloy steel yeeb nkab tuaj yeem muab faib ua cov yeeb nkab puag ncig thiab cov yeeb nkab tshwj xeeb raws li qhov sib txawv ntawm qhov sib txawv thiab cov duab. Vim tias thaj chaw ncig yog qhov loj tshaj plaws nyob rau hauv qhov xwm txheej ntawm qhov sib npaug, cov kua dej ntau tuaj yeem thauj tau los ntawm cov yeeb nkab ncig. Tsis tas li ntawd, thaum lub nplhaib seem raug rau sab hauv lossis sab nraud radial siab, lub zog sib txawv ntau dua. Yog li ntawd, feem ntau cov kav hlau steel yog cov kav dej puag ncig.
