Dab tsi yog din 17175?
Din 17175yog tus qauv kev lag luam ntawm German uas qhia meej txog kev ua haujlwm ntawm kev ua haujlwm rauSeamless ncig leeg hlau leegTsim rauhigh - kev pab kubCov. Lub npe ntawm tus qauv yog "Seamless cov hlau txiav rau kev nce siab kub."
Tus tseem ceeb takaway yog tias cov kav dej no tsim kom tiv thaivKev mus ntxiv raug rau kev kub siab thiab kub, xws li cov uas pom nyob rau hauv cov chaw nres tsheb fais fab (Fossil roj thiab nuclear), kev lag luam boilers, thiab kev hloov cua sov.
Cov yam ntxwv tseem ceeb thiab tau txais
Seamless kev tsim kho:Cov kav dej yog seamless (tsis muaj lub ntsej muag welded), ua rau lawv muaj zog dua thiab txhim khu kev qha ntau dua li wermal kev ntxhov siab piv rau welded kav dej.
High - kub} kub kom tseeb:Cov qauv qib yog xaiv tau tshwj xeeb thiab tiv thaiv kev tiv thaiv lub zog thiab qeeb heev ntawm kev ntxhov siab tas li) ntawm kev nce siab kub, feem ntau txog 600-650 degree.
Daim Ntawv Thov Siab:Lawv feem ntau siv rau cov raj xa dej uas nqa dej sov, dej kub, lossis lwm yam siab {}} dej txias hauv lub siab kub.
Yuav tsum tau xeem:Tus qauv ua rau kev sim nruj, suav nrog:
Tsis - Kev Kuaj No(Feem ntau siv profile) kom ntseeg tau tias sab hauv thiab sab nraud.
Hydrostatic Kuajkom pom tseeb lub siab ncaj ncees.
Kev ntsuam xyuas txhua yam(Tensile, Hardness) kom paub meej lub zog.
Zai qhov ntsuas, ntiv nplhaib nthuav ntsuas, lossis khoov xeemmus kuaj ductility.
Tshuaj Lomlos xyuas cov ntaub ntawv muaj pes tsawg leeg.
Hom cov hlau qib hauv Din 17175
Tus qauv txhais tau ntau qib, txhua tus nrog cov tshuaj lom neeg tshwj xeeb thiab cov kws kho hluav taws xob haum rau cov kub sib txawv. Cov qhab nia feem ntau yog qhov qis -} alloy tshav kub- tiv taus cov hlau.
| Qib (Werkstoffnumummer) | Lub npe / zoo ib yam li | Cov yam ntxwv tseem ceeb thiab siv |
|---|---|---|
| St 35.8 / st 35.8 Kuv (1.0305) | Cov Hlau Hlau | Rau cov kev pab cuam qis dua. Formability zoo thiab weldability. |
| St 35.8 III (1.0309) | Carbon Steel (tua) | Ib tug neeg tua tuag (deoxidized) version ntawm st 35.8 txhawm rau txhim kho kev sib txawv. |
| St 45.8 (1.0405) | Cov Hlau Hlau | Siab dua lub zog dua li st 35.8 rau qhov kub thiab txias thiab ntsuas. |
| 17 mn 4 (1.0485) | Carbon -} manganese steel | Lub zog siab dua vim yog cov ntsiab lus manganese. Siv rau high - qhov kab kev ua kom siab. |
| 13 CRMO 4-5 (1.7335) | Chromium - molybdenum hlau | Zoo heev Creep Lub Zog ntawm Temps mus txog ~ 560 degree. Dav siv hauv boiler superheaters. |
| 10 crmo 9-10 (1.7380) | Chromium - molybdenum hlau | Cov ntsiab lus siab dua CR & MO cov ntsiab lus rau superior high - kub lub zog (txog ~ 590 degree). Rau cov kab loj hauv cov kab. |
| 14 Mov 6-3 (1.7715) | Molybdenum - vanadium steel | Lub zog zoo tshaj plaws, tab sis lom zem ntau rau lwm qib. |
| X 20 crmov 12-1 (1.4922) | High Chromium Hlau | Lub siab - muaj zog 12% chromium steel rau kub siab (txog ~ 620 degree). Siv nyob rau hauv high - qhov siab turbine Cheebtsam. |
Nco tseg:Cov naj npawb nyob rau hauv lub npe qib (piv txwv li, 13 crmo 4-5) qhia feem pua ntawm feem ntau ntawm cov ntsiab lus. Thawj tus lej (13) yog cov ntsiab lus chromium x 100, thiab tus lej thib ob (4) yog Molybdenum cov ntsiab lus x 100.
Cov Kev Siv Raug Raug
DIN 17175 Pipes yog qhov tseem ceeb hauv kev lag luam nyob rau qhov twg siab- kub thiab siab {{2} kub siab yog qhov tseem ceeb:
Lub zog hluav taws xob:
Cov kab ntim cov kab
Boiler SuperSheaters Thiab Rov Kho Dua
High - cov kab kev siab
Txuas cov kav dej ntawm boiler thiab Turbine
Petrochemical Kev Lag Luam:
Ethylene Ciav Rauv Rauv
Txheej txheem tso cua sov thiab kev hloov cua sov
Muaj Boilers:Rau ntau cov txheej txheem raug tsim.
Cov nroj tsuag hluav taws xob nuclear:Rau cov tshuab ntsuas tshwj xeeb (thawj cov kab hluav taws xob feem ntau siv lwm cov qauv tshwj xeeb).
Kev sib piv nrog lwm cov qauv
DIN 17175 yog ua haujlwm zoo ib yam li ob peb lwm cov qauv thoob ntiaj teb. Cov kav dej tsim rau cov qauv no feem ntau suav tias yog piv, hloov chaw ncaj qha rau kev ntsuas kev ntsuas ntawm cov qauv.
| Lub hom phiaj | Cheeb tsam | Npe / Cov | Cov qib sib luag |
|---|---|---|---|
| Din 17175 | Lub teb chaws Yelemees | Seamless Tubes rau nce qhov kub | St 35.8, 13 crmo 4-5, 10 crmo 9-10 |
| En 10216-2 | Yu Laus teb | Seamless cov hlau tubes rau siab lub hom phiaj - part 2 | P235gh, 13crmo4-5, 10crmo9-10 |
| ASTM A106 / A335 | Usa | Txheem Cov Qauv Tshwj Xeeb Rau Seamless Carbon / Alloy - steel yeeb nkab rau high-}} kub kev pab | Qib B (A106), P11, P22 (A335) |
| BS 3602 / BS 3604 | Hauv UK | Cov lus qhia tshwj xeeb rau arc welded thiab seamless steel kav rau siab lub hom phiaj | HFW 430, 622-440 |
Cov Lus Tseem Ceeb:Nrog kev sib raug zoo ntawm European cov qauv, DIN 17175 tau ua rau muaj kev lom zem ntauEn 10216-2Cov. Txawm li cas los xij, cov qauv kev tsim ntaub ntawv qub tseem muaj siv dav hauv kev lag luam parlance, thiab ntau cov kav dej tau muab ntawv pov thawj rau ob qho tib si din thiab tus qauv tshiab. Piv txwv li,13 CRMO 4-5(DIN 17175) yog sib npaug rau13Crmo4-5(EN 10216-2).
Lub ntsiab
Nyob rau hauv essence,Din 17175Txhais tsev neeg ntawm high - zoo seamless steel kav ua los ntawm tshav kub- Cov hlau tiv taus. Thaum koj pom cov specification no, koj tuaj yeem ntseeg tau tias cov yeeb nkab tsim rau kev xav tau, siab} qhov kev nyab xeeb uas muaj kev nyab xeeb thiab ntev} sij hawm kev ntseeg tau yog qhov tseem ceeb.
Thaum sourcing los yog qhia cov kav dej no rau cov kav dej hnub no, nws yog qhov tseem ceeb los tshawb xyuas seb qhov yuav tsum tau ua yog rau cov nyob hauvDin 17175los yog tus txheej txheem tam sim no EuropeanEn 10216-2.
