DIN 17175 yog dab tsi?
TIAB SA 17175yog tus qauv kev lag luam German uas qhia txog cov txheej txheem kev xa khoom rauseamless steel raj thiab kavtsim los rau qhov kub thiab txias siab.
Hauv cov ntsiab lus yooj yim, nws yog tus qauv zoo rau siab - cov kav dej ua tau zoo siv hauv cov ntawv thov tseem ceeb xws li cov chaw tsim hluav taws xob thiab cov chaw tsim khoom. Cov kav dej uas muaj raws li tus qauv no yogseamless, txhais tau tias lawv tau tsim los ntawm cov khoom siv hlau, ua rau lawv muaj zog thiab txhim khu kev qha ntau dua li cov kav dej welded.
Nrog rau kev sib haum xeeb ntawm cov qauv European, DIN 17175 tau hloov pauv ntau los ntawm European tus qauv.TS EN 10216-2. Txawm li cas los xij, qhov kev xaiv DIN tseem yog feem ntau siv hauv kev qhia tshwj xeeb thiab kev lag luam parlance.
Cov yam ntxwv tseem ceeb thiab lub hom phiaj
Seamless Kev Tsim Kho:Ua kom homogeneity thiab lub zog, tsis muaj seam tsis muaj zog.
High -Tsev Kev Pabcuam:Tsim los tiv thaiv qhov ntev ntawm qhov kub thiab txias (feem ntau txog 500-600 degree).
Siab -Kev Pabcuam Siab:Tsim kom muaj cov kua thiab cov pa hauv qab lub siab tseem ceeb.
Kev sim nruj:Yuav tsum tau ua nruj me ntsis uas tsis yog - kuaj kev puas tsuaj, kev sim siab, thiab kev txheeb xyuas cov khoom siv.
Cov Qib Khoom Tseem Ceeb
DIN 17175 txhais tau ntau yam khoom siv, feem ntau raws li lawv cov tshuaj muaj pes tsawg leeg thiab cov khoom siv kho tshuab ntawm chav tsev kub. Cov qib uas feem ntau yog:
| DIN 17175 Qib | Zoo ib yam EN 10216-2 Qib | Cov yam ntxwv tseem ceeb thiab kev siv ntau |
|---|---|---|
| ib 35.8 | P235GH | Cov pa roj carbon-manganese steel. Zoo weldability thiab formability. Siv rau boiler raj, superheater raj, thiab dav dav - qhov kub thiab txias kev pab cuam. |
| ib 45.8 | P265GH | Lub zog siab dua St 35.8. Siv rau cov ntawv zoo sib xws uas yuav tsum muaj lub zog siv tshuab ntau dua. |
| 15 hmo 3 | 16 hmo 3 | Tsawg- hlau alloy uas muaj ~ 0.3% Molybdenum. Txhim kho siab -kub lub zog thiab nkag siab tsis kam. Siv rau superheaters thiab cov hlab ntsha siab. |
| 13CrMo4-5 | 13CrMo4-5 | Ib chromium{0}}molybdenum steel. Zoo heev - kub lub zog thiab oxidation kuj. Feem ntau nyob rau hauv siab -kub fais fab nroj tsuag piping (piv txwv li, chav kab). |
| 10CrMo9-10 | 12CrMo9-10 | Qhov siab dua -qib chromium-molybdenum steel (zoo ib yam li ASTM A335 P22). Siv rau qhov kub siab tshaj plaws hauv kev tsim hluav taws xob thiab cov nroj tsuag petrochemical. |
Nco tseg:Cov lej hauv cov npe qib (xws li 35.8 hauv St 35.8) xa mus rauyam tsawg kawg nkaus yield zoghauv MPa (piv txwv li, ~ 355 MPa rau St 35.8).
Cov Lus Qhia Tseem Ceeb
Tus qauv qhia cov kev xav tau rau:
Tshuaj muaj pes tsawg leeg:Kev txwv rau Carbon (C), Manganese (Mn), Silicon (Si), Phosphorus (P), Sulfur (S), thiab lwm yam alloying ntsiab.
Mechanical Properties:Yam tsawg kawg nkaus rau Tensile Strength, Yield Strength, thiab Elongation.
Kev Ntsuas Siab:Txhua cov yeeb nkab yog raug rau qhov uas tsis yog -kev puas tsuaj hydrostatic los yog eddy tam sim no kuaj kom paub tseeb tias xau{1}} nruj.
Tsis yog -Kev Ntsuas Kev Puas Tsuaj (NDT):Kev kuaj ultrasonic lossis lwm txoj hauv kev feem ntau yuav tsum tau kuaj xyuas qhov tsis xws luag sab hauv thiab sab nraud.
Kev tshuaj xyuas thiab ntawv pov thawj:Cov chaw tsim khoom muab daim ntawv pov thawj xeem, feem ntau aHom 3.1daim ntawv pov thawj raws li EN 10204, uas lees paub tias cov khoom ua raws li tus qauv yuav tsum tau ua.
Cov ntawv thov siv
DIN 17175 cov kav dej yog siv hauv kev lag luam uas tsis ua haujlwm tsis yog qhov kev xaiv. Cov ntawv thov ib txwm muaj xws li:
Kev tsim hluav taws xob:Siab -Cov kab hluav taws xob siab, boiler raj, superheaters, reheaters, thiab feedwater kab hauv fossil roj thiab biomass fais fab nroj tsuag.
Petrochemical thiab Refining:Hloov cov kab, txheej txheem kav dej, thiab cov khoom siv hluav taws xob sib hloov hauv cov refineries thiab cov nroj tsuag tshuaj.
High -Pressure Boiler Systems:Rau kev lag luam cua sov thiab kev ua haujlwm.
Sib piv nrog Lwm Cov Qauv
Nws yog qhov pab tau los sib piv DIN 17175 nrog rau lwm cov qauv yeeb nkab:
| Txuj | Scope | Qhov txawv tseem ceeb |
|---|---|---|
| DIN 17175 / EN 10216-2 | Seamless kav rau qhov kub thiab txias. | Tsom ntsoov rau qhov kub thiab txias zog thiab creep zog. |
| ASTM A106 / A53 | Seamless carbon steel yeeb nkab rau siab -kev pab kub. | American sib npaug. A106 yog tus neeg sib tw ncaj qha, tab sis cov kev xav tau tshuaj lom neeg thiab kev sim tuaj yeem sib txawv. |
| ASTM A333 Cov khoom lag luam | Seamless thiab welded steel yeeb nkab rau qis - kev pabcuam kub. | Tsim los rau qis-kub toughness (xws li, -50 degree), tsis zoo li qhov kub siab ntawm DIN 17175. |
| Daim ntawv pov thawj: DIN 2448 / EN 10255 | Seamless thiab welded steel raj rau lub hom phiaj dav dav. | Rau kev siv tsis yog - tseem ceeb xws li dej, roj, thiab kev siv cov qauv. Tsis haum rau siab - kev pabcuam siab / kub. |
Cov ntsiab lus
TIAB SA 17175sawv cev rau cov chav kawm siab -zoo,seamless carbon thiab tsawg- alloy steel kavengineered rau qhov xav tau ib puag ncig uas muaj kev kub siab thiab kub siab. Thaum officially hloov los ntawmTS EN 10216-2, nws cov qub txeeg qub teg thiab naming conventions tseem embedded nyob rau hauv engineering specifications thoob ntiaj teb, tshwj xeeb tshaj yog nyob rau hauv lub hwj chim thiab txheej txheem industries. Thaum koj pom "DIN 17175," koj tuaj yeem ntseeg tau tias nws yog hais txog kev txhim khu kev qha, sim cov yeeb nkab rau kev pabcuam tseem ceeb.
