Valve raw cov ntaub ntawv xws li roj Circuit Court phaj, ib leeg ntws valve thiab piston valve yog qhia kom ntxaws

Valve raw cov ntaub ntawv xws li roj Circuit Court phaj, ib leeg ntws valve thiab piston valve yog qhia nyob rau hauv kev nthuav dav Roj Circuit Court phaj, ib leeg ntws valve thiab lub rooj vag valve (piston valve) yog ib qho tseem ceeb ntawm lub valve, tam sim ntawd xav tias nruab nrab ua hauj lwm siab, Feem ntau siv raw cov ntaub ntawv yuav tsum tau raws li cov kev cai ntawm "valve siab thiab kub theem". Cov pa roj carbon steel: Haum rau nominal siab PN≤32.0MPa, kub -30 ~ 425 ℃ dej, chav, roj, hydrogen, ammonia, nitrogen thiab roj av thiab lwm yam xov xwm. Cov qib zoo yog WC1, WCB, ZG25 thiab cov hlau zoo 20, 25, 30 thiab qis alloy steel 16Mn. Stainless acid resistant steel, haum rau nominal siab PN≤6.4Mpa, kub ≤200 ℃ sodium cyanide, glacial acetic acid thiab lwm yam xov xwm... Muaj ntau cov ntaub ntawv raw rau kev tsim thiab siv cov khoom valve, suav nrog ntau hom sib txawv ntawm lub teeb. hlau thiab precious hlau thiab aluminium alloy, ntau yam khoom tsis yog xim hlau. Cov khoom siv raw rau kev tsim cov khoom siv valve yuav tsum raug xaiv raws li cov hauv qab no: 1, ua haujlwm nruab nrab siab, kub thiab yam ntxwv. 2, cov kabmob muaj peev xwm ntawm cov khoom thiab feem ntau ua lub luag haujlwm hauv cov qauv valve. 3. Cov txheej txheem ua tau zoo. 4. Raws li qhov ua tau raws li cov xwm txheej saum toj no, tus nqi qis yuav tsum tau ua. Cov ntaub ntawv raw ntawm cov roj Circuit Court phaj, ib leeg ntws valve thiab valve phaj (piston valve) Roj Circuit Court phaj, ib leeg ntws valve thiab lub rooj vag valve (piston valve) yog ib qho tseem ceeb ntawm lub valve, tam sim ntawd xav tias qhov nruab nrab ua haujlwm siab, feem ntau siv. raw cov ntaub ntawv yuav tsum tau raws li cov kev cai ntawm "valve siab thiab kub theem". Cov khoom siv feem ntau poob rau hauv cov pawg hauv qab no: 1, grey cam khwb cia hlau: grey cam khwb cia hlau yog tsim rau nominal siab PN≤1.0MPa, kub -10 ℃ ~ 200 ℃ dej, chav, roj, liquefied gas thiab refined roj thiab lwm yam xov xwm. Grey cam khwb cia hlau qib: HT200, HT250, HT300, HT350. Ob, malleable hlau: haum rau nominal siab PN≤2.5MPa, kub -30 ~ 300 ℃ dej, chav, roj thiab roj nruab nrab, hom hom yog: KTH300-06, KTH330-08, KTH350-10. Peb, ductile casting: haum rau PN≤4.0MPa, kub -30 ~ 350 ℃ dej, chav, roj thiab roj thiab lwm yam xov xwm. Cov hom muaj xws li: QT400 - 15, QT450 - 10, QT500 - 7. Vim tias peb lub teb chaws cov cuab yeej technology tam sim no, cov chaw tsim khoom zoo thiab qee qhov tsis zoo thiab cov neeg siv khoom tsis yooj yim rau kev kuaj xyuas. Raws li kev paub dhau los, nws tau pom tias PN≤2.5MPa, valve lossis steel valve raug xaiv rau kev nyab xeeb. Plaub, acid kuj siab silicon ductile casting: haum rau nominal siab PN≤0.25MPa, kub tsawg dua 120 ℃ corrosive nruab nrab. Tsib, carbon steel: haum rau nominal siab PN≤32.0MPa, kub -30 ~ 425 ℃ dej, chav, roj, hydrogen, ammonia, nitrogen thiab roj av khoom thiab lwm yam xov xwm. Cov qib zoo yog WC1, WCB, ZG25 thiab cov hlau zoo 20, 25, 30 thiab qis alloy steel 16Mn. Vi. Cov khoom siv hlau: Haum rau PN≤2.5MPa dej, hiav txwv, O2, roj, roj thiab lwm yam xov xwm, thiab qhov kub ntawm -40 ~ 50 ℃ vapor nruab nrab, hom hom yog ZGnSn10Zn2 (tin bronze), H62, HPB59-1 (liab). tooj liab), Qaz19-2, Qa19-4 (aluminium bronze). Xya, nruam kub kub tooj liab: haum rau nominal siab PN≤17.0MPA, kub ≤570 ℃ chav cua sov thiab roj av khoom. Hom hom muaj ZGCr5Mo, 1 cr5m0. ZG20CrMoV, ZG15Gr1Mo1V, 12 crmov WC6, WC9, thiab lwm yam. Yim, tsis tshua muaj kub steel, haum rau nominal siab PN≤6.4Mpa, kub ≥ -196 ℃ butadiene, pe, kua natural gas, kua nitrogen thiab lwm yam xov xwm, hom hom) yog ZG1Cr18Ni9, 0Cr18Ni9, 1Cr18Ni9Ti, ZG0Cr18Ni9 cuaj, stainless acid resistant steel, haum rau nominal siab PN≤6.4Mpa, kub ≤200 ℃ sodium cyanide, acetic acid thiab lwm yam xov xwm, hom hom yog ZG0Cr18Ni9Ti, ZG0Cr18Ni9Ti, ZG1Cr18Ni12Mo2Ti, acid kuj thiab urea tov Qhov kawg txoj kab uas hla yuav tsis pub dawb disc thiab ginger. tswj vim qhov dav thiab ntug deformation ntawm tooj liab thiab alloy steel castings ntawm valve raw cov ntaub ntawv, yog li tsis muaj qhov ntev ntev yuav tsum tau. Tus neeg muag khoom tau tshaj tawm thiab xaj kom tso ua ntej yuav khoom, lossis tus nqi ntawm cov khoom lag luam embedded machining seem. Burrs tshwm sim los ntawm cov npoo ntxhib, xuas nrig ntaus, tshuab xuas nrig ntaus, lossis dhau ntawm cov ntawv qhia kev tuag ntawm forging tuag tau tso cai tsuav yog tias lawv raug tshem tawm thaum lub tshuab ua haujlwm lossis tsis muaj teeb meem nyob rau hauv cov khoom tiav (G1, G2, G3, thiab G4 hauv FIG. Daim duab kos yuav tsum qhia tias cov npoo nyoos yuav tsum tsis pub tshaj 1.5 hli Kev Txuas: Hlau castings ntawm tooj liab thiab alloy cov ntaub ntawv rau valve raw cov ntaub ntawv (II) Dimensional yuam kev nyob rau hauv thiab hla tuag - parting kab Raw khoom pab pawg neeg I, specifications, thiab t yuav tsum ua raws li Qhov sib txawv ntawm qhov sib txawv tau muab rau hauv Table 14, thaum cov khoom siv raw pawg Ⅱ yuav tsum ua raws li Table 15, cov khoom siv raw pawg Ⅲ Cov ntsiab lus loj dua ntawm calcination Angle, tmax, yog qhov yooj yim ntawm qhov muaj peev xwm kam rau siab hla lub specification t ntawm txoj kab sib faib. Qhov yuam kev ntawm tmax lies nyob rau hauv qhov kev loj hlob cheeb tsam A ntawm lub hard strike Angle ntawm ib feem. Nyob rau hauv cov ntaub ntawv ntawm annular qhov chaw, tag nrho cheeb tsam A yog sib npaug rau thaj tsam ntawm A voj voog; Nyob rau hauv cov ntaub ntawv ntawm qhov tsis xwm yeem, tag nrho cheeb tsam A yog sib npaug rau thaj tsam ntawm cov duab plaub sab nraud (saib daim duab 4). Txhua qhov tshwj xeeb me me t muaj qhov yuam kev zoo ib yam li tmax.