** 1. Dab tsi yog A350 khoom? **
ASTM A350 yog tus qauv ntsuas rau cov pa roj carbon thiab qis -}} Alloy allloch kev sim. Cov kev tsis lees paub no yog feem ntau npaj rau kev siv kev tiv thaiv kev kub siab hauv qis- kev pab kub. Tus yam ntxwv tseem ceeb ntawm A350 cov ntaub ntawv yog tias lawv tau tsim los khaws tej yam cuam tshuam tsis kam thiab ductility ntawm sub {}} xoom} xoom. Cov qib kawm nyob hauv cov kev qhia tshwj xeeb suav nrog LF1, LF2, LF3, thiab LF5, nrog cov qib sib txawv ntawm cov qes.
** 2. Dab tsi yog qhov ntsuas kub rau ASTM A352? **
ASTM A352 npog cov hlau castings rau lub siab -}} muaj qhov chaw haum rau qis- kev pab kub. Qhov ntsuas kub muaj nyob ntawm qib tshwj xeeb:
* Cov Qib LCA, LCB, thiab LC1 feem ntau haum rau kev pabcuam kom txog ** - 50 Qib F (-45 degree) **.
* Qib LC2 feem ntau yog siv rau kev pabcuam qis rau ** - 75 Degree F (-60 degree) **.
* Qib LC3 yog siv rau txawm tias qis dua qhov kub, qis rau ** - 100℃f (-73 degree) **.
* Qib LC4 yog tsim rau cov mob hnyav tshaj plaws, poob mus rau ** - 150 xyoo℃F (-100 degree) **.
** 3. Qhov twg yog WCC zoo dua lossis WCB cov hlau? **
"Zoo dua" nyob ntawm daim ntawv thov tshwj xeeb, tab sis WCC feem ntau zoo dua rau qis - kub kev pab. Ob tus WCB thiab WCB yog cov khoom siv roj carbon steel casting ib antm A216. Qhov sib txawv tseem ceeb yog nyob rau hauv lawv qhov kev xeem kev xeem. WCC yuav tsum tau them tus nqi Charpy V - cov kev cuam tshuam ntawm cov neeg yuav ntsuas kom muaj kev nyuaj, thaum WCB tsis yog. Yog li, WCC yog qhov kev xaiv thiab "zoo dua" kev xaiv rau cov ntawv thov yuav raug rau cov kev pheej hmoo tsawg lossis qhov kev pheej hmoo ntawm brittle breature. WCB yog ib qho zoo rau kev pabcuam dav dav ntawm qhov chaw kub.
** 4. Dab tsi yog sa 352 cov khoom siv? **
SA 352 yog ASME BOILER THIAB SIAB RAU LUB HLAU CODE CODE rau tib cov qauv txheem ASTM A352. "Sa" sawv rau Ntu II, cov khoom siv. Yog li ntawd, sa 352 thiab ASTM A352 xa mus rau qhov zoo tib yam: "Hlau casings, ferritic thiab siab}- kub kev pab." Nws npog npog steel hlau sib xyaw ua kom muaj kev ntseeg siab nyob rau hauv qis- qhov chaw ib puag ncig.
** 5. Dab tsi yog 800 qhov siab ntsuam xyuas? **
Lo lus "800" siab siab feem ntau yog hais txog chav kawm siab rau cov flanges, li qub, thiab lwm cov raj xa dej, thiab lwm yam 800 ** **. Nov yog kev tsim qauv los ntawm ASME B16.5 tus qauv rau cov yeeb nkab steel flanges. Chav kawm 800 ntaus nqi qhia txog qhov kev kub siab -} muaj cov peev xwm. Qhov siab tshaj plaws pub dawb pub rau qhov kub tau txhais nyob rau hauv ASME siab {}} kub rating cov ntxhuav. Piv txwv li, chav kawm 800 flange tuaj yeem lis kev ntxhov siab tshaj 2000 psi (138 bar) ntawm chav tsev kub. Nws yog qhov tseem ceeb tshaj plaws los tham txog cov qauv uas cuam tshuam rau qhov kev ntsuam xyuas qhov ntsuas siab raws li cov khoom thiab kub.
