Cov khoom siv sib txawv ua haujlwm kub siv cov khoom siv valve stainless hlau phaj kub dov steel kev taw qhia
Ib qho ntawm cov ntsiab lus tseem ceeb uas yuav tsum xav txog hauv kev tsim valve thiab xaiv cov khoom siv yog qhov kev ua haujlwm kub ntawm lub valve. Ntxiv rau qhov tsim nyog ua haujlwm kub ntawm valve tus cwj pwm lub cev cov ntaub ntawv, los ntawm kev ua tau zoo ntawm steel concentric tooj siv nyob rau hauv ntau hom valve siv cov ntaub ntawv, qhov haum ua hauj lwm kub thiab lwm yam yuav tsum tau ntawm lub valve tus cwj pwm lub cev cov ntaub ntawv siv nyob rau hauv domestic petrochemical khoom, tshuaj nroj tsuag, organic chiv, hluav taws xob hluav taws xob engineering thiab metallurgical kev lag luam thiab lwm yam kev lag luam tau teev tseg rau cov qauv tsim, kev tsim khoom thiab kev sim cov khoom valve Yog. Daim ntawv no tsuas yog qhia txog qhov kub thiab txias valve, nruam kub siab valve, corrosion resistant nickel base alloy corrosion resistant nickel base alloy valve xaiv cov ntaub ntawv..
Ib qho ntawm cov ntsiab lus tseem ceeb uas yuav tsum xav txog hauv kev tsim valve thiab xaiv cov khoom siv yog qhov kev ua haujlwm kub ntawm lub valve. Ntxiv rau qhov tsim nyog ua haujlwm kub ntawm valve tus cwj pwm lub cev cov ntaub ntawv, los ntawm kev ua tau zoo ntawm steel concentric tooj siv nyob rau hauv ntau hom valve siv cov ntaub ntawv, qhov haum ua hauj lwm kub thiab lwm yam yuav tsum tau ntawm lub valve tus cwj pwm lub cev cov ntaub ntawv siv nyob rau hauv domestic petrochemical khoom, tshuaj nroj tsuag, organic chiv, hluav taws xob hluav taws xob engineering thiab metallurgical kev lag luam thiab lwm yam kev lag luam tau teev tseg rau cov qauv tsim, kev tsim khoom thiab kev sim cov khoom valve Yog. Tsis tas li ntawd, los ntawm qhov kev xav ntawm kev tswj xyuas zoo thiab kev tswj hwm kev lag luam thiab cov khoom siv, rau txhua qhov sib txawv ntawm cov hlau yuav tsum tau xaiv nrog kev ua haujlwm zoo dua, tsis haum rau kev siv ntau cov qauv steel nrog tib tus lej, kom tsis txhob muaj kev tsis sib haum xeeb.
1. Cov khoom tseem ceeb ntawm qhov kub thiab txias valve (-254 (kua hydrogen) ~ -101 ℃ (butadiene)) tus cwj pwm yuav tsum yog cov hlau tsis tshua muaj hlau, cov khoom siv alloy lossis aluminium alloy profile nrog lub cev-centric lattice tas li. Ultra-tsawg kub lub cev muaj zog tom qab kev kho cua sov txheej txheem, tshwj xeeb tshaj yog cov ultra-low kub tawg toughness yuav tsum tau raws li cov kev cai ntawm tus qauv. Cov nram qab no cov hlau tsis tshua muaj hlau tuaj yeem siv los ua qhov zoo tshaj plaws kub li qub. ASTM A351 CF8M, CF3M, CF8 thiab CF3, ASTM A182F316, F316L, F304 thiab F304L, ASTM A433 316, 316L, 304, 304L thiab CF8D. Cov roj Circuit Court phaj, ib leeg ntws valve, lub rooj vag valve lossis piston valve ntawm qhov kub thiab txias yuav tsum tau kho cryogenic hauv cov kua nitrogen (-196 ℃) ua ntej kev sib sib zog nqus.
2. Nruam qhov kub thiab txias valve Lub Cr-Mo nruam kub kub steel valve feem ntau yog siv los xaiv WC6, WC9 thiab C5 (ZG1Cr5Mo) hauv ASTM A217 specification, thiab cov hlau sib txuas yog F11, F22 thiab F5 hauv ASTM A182.
(1) Tsawg chromium qib chrome-molybdenum steel muaj WC6, WC9, F11 thiab F22, nws qhov nruab nrab siv tau yog dej, chav thiab radon roj, tsis haum rau cov ntsiab lus ntawm cov roj ua kom zoo. WC6 thiab F11 yog qhov tsim nyog rau kev ua haujlwm kub ntawm -29 ~ 540 ℃, thiab WC9 thiab F22 haum rau kev ua haujlwm kub ntawm -29 ~ 570 ℃.
(2) C5 (ZG1Cr5Mo) thiab F5 chromium pentamolybdenum siab kub hlau, nws siv xov xwm rau dej, chav, radon roj thiab leej faj cov ntsiab lus ntawm refined roj. C5 (ZG1Cr5Mo) yog siv nyob rau hauv dej vapor, nws siab tshaj plaws kev khiav hauj lwm kub yog 600 ℃. Qhov siab tshaj plaws kev khiav hauj lwm kub yog 550 ℃ thaum nws yog siv nyob rau hauv nruab nrab xws li sulfur ntsiab lus refined roj. Yog li ntawd, kev khiav hauj lwm kub ntawm C5 (ZG1Cr5Mo) yuav tsum tau tsawg tshaj li 550 ℃.
3, corrosion resistant npib tsib xee puag kub alloy corrosion resistant nickel puag alloy valve yog tus yuam sij rau siv ASTM A494 specification ntawm forged monel alloy
(1), cam khwb cia npib tsib xee puag alloy (CZ-100), Inconnel aluminium alloy (CY-40), Hastelloy alloy B (N-12MV, N-7M) thiab Hastelloy C (CW-(1) Monel alloy Monel muaj lub zog siab thiab ductibility, tshwj xeeb tshaj yog zoo heev los txo cov kua qaub thiab muaj zog acid thiab dej hiav txwv corrosion zog yog li ntawd, nws yog feem ntau siv rau kev tsim thiab thauj hydrochloric acid, dej ntsev, cov khoom nruab nrab, alkali ntsev thiab oxidizing acids thiab lwm yam khoom siv xov xwm thiab li qub. haum rau qhuav thiab manic hydrogen, hydrogen chloride gas, 425 ℃ nruam kub hydrogen thiab 450 ℃ nruam kub hydrogen chloride roj thiab lwm yam tshuaj, tab sis tsis tiv thaiv leej faj cov ntsiab lus thiab txo cov tshuaj (xws li sodium cyanide thiab oxygen-muaj tshuaj. ) Cov khoom siv valve tag nrho ntawm Monel alloy yog MM, thiab qhov tseem ceeb yog Monel alloy valve Cov khoom siv valve ntawm cov hlau yog C / M, cov khoom siv valve ntawm CF8 yog P / M, thiab cov khoom siv valve. code ntawm CF8M yog R/M. Qhov tsim nyog ua haujlwm kub ntawm Monel M35-1, Monel 400 thiab MonelK500 aluminium alloys yog -29 ~ 480 ℃.
(2) Cast nickel puag alloy Cast nickel alloy (CZ-100) yog 95% Ni thiab 1100% C, thiab tsis muaj cov phaj sib thooj. CZ-100 muaj kev tiv thaiv corrosion zoo heev thaum siv cov tshuaj kub kub tsis tu ncua nrog cov concentration siab lossis tsis muaj dej thiab alkali. CZ-100 feem ntau yog siv rau hauv cov txheej txheem ntawm chlor-alkali chemical ntau lawm nrog siab etching concentration (xws li melting aluminium chloride tsis muaj dej thiab anhydrous) thiab nyob rau hauv qhov chaw uas tooj liab thiab hlau thiab lwm yam hlau ib puag ncig cov khoom tsis muaj kuab paug. Cam khwb cia npib tsib xee puag alloy CZ-100 valve khoom code Ni. CZ-100 aluminium alloy yog tsim rau kev ua haujlwm kub ntawm -29 ~ 316 ℃.
(3) Hastelloy Hastelloy yog lub npe lag luam rau Hastelloy, uas feem ntau suav nrog kev sib txuas ua ke, feem ntau Hastelloy B thiab Hastelloy C siv rau hauv cov khoom siv tiv thaiv corrosion. Lub forging ntawm Hastelloy B alloys rau N-12MV (N-12M-1) thiab N-7M (qee cov ntaub ntawv hu ua N-12M-2, kuj hu ua Chlorimet 2 aluminium alloy) hauv ASTM A494 yog dov rau UNS hauv ASTM B335 N10665 . Hastelloy B yog resistant rau sulfuric acid ntawm tag nrho cov concentrations, raws li zoo raws li tsis-txo ntsev thiab acids. Lub valve tiv thaiv corrosion ntawm Hastelloy B, los ntawm kev tiv thaiv corrosion thiab kev ntxhov siab corrosion kuj yuav tsum tau xaiv cov pa roj carbon tsawg ib puag ncig tiv thaiv qib Hastelloy B (N-7M). Hastelloy khoom naj npawb Tsis muaj qhov yuav tsum tau muaj nyob rau hauv lub valve. Hastelloy B valve cov ntaub ntawv xov tooj tuaj yeem piav qhia ncaj qha los ntawm kev sib koom ua tus lej. Hastelloy B yog tsim rau kev ua haujlwm kub ntawm -29 ℃ ~ 425 ℃.
Cov qauv no piav qhia txog qhov ntev, qhov tsim qauv, cov qauv kev qhia, cov qauv kev sim, cov qauv tshuaj xyuas, cov cim ntim thiab cov ntawv pov thawj zoo ntawm cov hlau tsis muaj steel kub. Cov qauv no siv rau corrosion resistant kub dov steel rau lub hom phiaj dav dav. GB 222 steel tshuaj lom neeg muaj pes tsawg leeg tsom xam siv cov qauv coj mus kuaj thiab cov khoom tiav cov khoom muaj pes tsawg leeg tso cai yuam kev GB 223 steel thiab txhuas alloy tshuaj tshuaj txoj kev GB 226 steel tsis tshua muaj qauv thiab cov tsis zoo acid etching nrhiav txoj kev GB 228 hlau tensile xeem txoj kev GB 230 hlau cov ntaub ntawv Rockwell hardness xeem txoj kev GB 231 Cov ntaub ntawv hlau Brinell ...
1. Ntsiab lus tswv yim thiab daim ntawv thov teb
Cov qauv no stainless hlau phaj kub dov steel loj, tsim qauv, cov qauv kev, kev sim, cov qauv tshuaj xyuas, ntim cov cim thiab daim ntawv pov thawj zoo thiab lwm yam ntaub ntawv cuam tshuam.
Cov qauv no siv rau corrosion resistant kub dov steel rau lub hom phiaj dav dav.
2. Cov qauv siv
GB 222 steel tshuaj lom neeg muaj pes tsawg leeg tsom xam los ntawm cov qauv qauv qauv thiab muaj pes tsawg leeg ntawm cov khoom tiav tso cai yuam kev
GB 223 Txoj kev rau tshuaj ntsuam xyuas ntawm cov hlau thiab txhuas alloys
GB 226 steel - kev txiav txim siab ntawm qis - lub zog qauv thiab qhov tsis xws luag los ntawm acid etch
GB 228 Hlau tensile xeem txoj kev
GB 230 cov ntaub ntawv hlau - Rockwell hardness test method
GB 231 Tensile zog xeem txoj kev rau cov ntaub ntawv hlau
GB 232 bending xeem txoj kev rau cov ntaub ntawv hlau
Cov kev cai dav dav rau kev lees txais, ntim sab nrauv, kos npe thiab Daim Ntawv Pov Thawj Zoo ntawm GB 247 tuab steel daim hlau thiab cov saw hlau
GB 709 kub dov steel thiab steel saw qhov ntev, tsim sab nrauv, nqa hnyav thiab tso cai yuam kev
GB 2975 steel rau kev tsim kho - cov qauv yuav tsum tau ua rau cov qauv kev kho tshuab thiab kev sim ua haujlwm
GB 4334.1 stainless hlau phaj 10% hydrochloric acid corrosion test method
GB 4334.2 stainless hlau phaj HCL - magnesium hydroxide etching txoj kev
GB 4334.3 stainless hlau daim hlau 65% sodium cyanide etch method
Stainless hlau daim hlau GB 4334.4 sodium cyanide-hydrochloric acid etch method
GB 4334.5 stainless hlau phaj HCL - sodium thiosulfate etched xeem txoj kev
GB 4334.6 stainless hlau phaj 5% sulfuric acid corrosion test method
GB 4340 Cov ntaub ntawv hlau - Brinell hardness test method
GB 6397 hlau tensile kuaj qauv
Corrosion test nyob rau hauv cov cua hluavtaws (SS test)
3. Cov lus qhia tshwj xeeb thiab cov qauv tsim
3.1 Qhov loj thiab tso cai yuam kev ntawm tuab steel phaj yuav tsum ua raws li cov kev cai ntawm GB 709.
3.1.1 Qhov roughness ib 'meter' ntawm tuab steel phaj yuav tsum ua raws li cov kev cai hauv Table 1.
Lub Xeev Kev Tswj Xyuas Kev Tswj Xyuas Zoo tau tshaj tawm xyoo 1992-11-16, tso cai rau kev siv ntawm 1993-06-01
Post lub sij hawm: Feb-16-2023
