A 15Mo3 seamless steel raj rau siab - siab boilers ib tus qauv German DIN 17175, tsim los ntawm txias - txheej txheem kos duab. Nrog cov ntsiab lus molybdenum 0.25-0.35%, tsim rau kev siv siab tsawg dua los yog sib npaug rau 510℃(xws li, kev lag luam, superheaters).
Core Features & Applications
Khoom Khoom
Kev sib xyawCov pa roj carbon tsawg (C Tsawg dua lossis sib npaug li 0.20%) + Molybdenum (Mo) → Txhim kho thermal zog & tiv thaiv graphitization
Txheej txheem: Txias-kos (chav- qhov kub thiab txias) → Dimensional raug ± 0.1mm, nto roughness Ra Tsawg dua lossis sib npaug li 1.6μm
Kev Ua Haujlwm Zoo
Siab -temp zog: Yield zog Ntau dua los yog sib npaug rau 110MPa ntawm 510℃(zoo tshaj rau carbon steel hlab)
Creep kuj: Max nruam kev pab temp Tsawg dua los yog sib npaug rau 480℃(tsis txhob ntev -lub sij hawm graphitization)
Tej kev siv
Boiler systems: Siab-siab boiler economizer raj, qis-kub superheaters
Petrochemical: Kub exchanger raj, siab hlab ntsha tsawg dua los yog sib npaug rau 5.88MPa
Cov txheej txheem tsim khoom ntawm 15Mo3 Txias -Kaw Steel Tubes
Cua sov & quenching
Rectangular billets yog rhuab nyob rau hauv ib tug siab -kub rauv kom ua tau txaus plasticity.
Kev tswj qhov kub thiab txias: Txoj cai nruj tiv thaiv oxidation scale tsim.
Dej quenching: Tam sim ntawd txias cov ntawv tshaj tawm - cua sov kom tsis txhob deformation / tawg.
Txheej txheem txheej txheem
Quenched billets yog pub rau hauv txias - kos duab tuag.
Precision kos duab: Kev kub siab maj mam ua cov ntawv sau rau hauv qhov ntev.
Kev tswj hwm qhov tseem ceeb:
Kev kos duab nrawm thiab siab → Tiv thaiv kev tawg / dhau - deformation
Deg tiav → Raws li roughness (Ra) thiab smoothness qauv
Kev soj ntsuam zoo
Tshaj tawm - cov raj xa dej tau txais:
Dimensional raug txheeb xyuas (OD / phab ntsa thickness ± 0.05mm)
Tsis yog -kev kuaj kev puas tsuaj (ultrasonic/eddy tam sim no)
Surface defect scanning
Tiav & Ntim
Kev kho saum npoo: Tiv thaiv xeb (piv txwv li, oiling / passivation)
Cov ntawv thov tshwj xeeb: Ntxiv txheej (galvanizing / hmoov txheej) rau corrosion kuj.
Ntim:
Tubes stacked nrog kev tiv thaiv spacers
Cov ntawv sau qhia: Dimensions, batch tooj, hnub tsim khoom, qauv (piv txwv li, DIN 17175 15Mo3)
Kev soj ntsuam tseem ceeb ntawm DIN 17175 15Mo3 boiler raj
| Cov khoom kuaj | Txias -Drawn Tube Specifications |
|---|---|
| NDT | 100% eddy tam sim no soj ntsuam (nto tawg nrhiav) |
| Hydrostatic Test | Test siab=1.5x tsim siab |
| Khoov Test | 180℃txias dabtsi yog khoov tsis tawg (phab ntsa thickness Tsawg dua los yog sib npaug li 10mm) |
| Hardness Tswj | Tsawg dua los yog sib npaug rau 165 HB (ua kom muaj peev xwm ua tau zoo) |
Alloy Steel Seamless Tubes DIN 17175 15Mo3 Hoobkas
