High silicon corrosion resistant cam khwb cia hlau ntawm valve khoom

High silicon corrosion resistant cam khwb cia hlau ntawm cov khoom siv valve no tus qauv qhia txog cov kev cai, kev xeem txoj kev, sampling thiab soj ntsuam cov cai, casting marking, ntim, cia thiab thauj yuav tsum tau rau siab silicon corrosion resistant cam khwb cia hlau. Cov qauv no muaj feem xyuam rau siab silicon corrosion resistant cam khwb cia hlau nrog silicon ntsiab lus ntawm 10, 00% ~ 15. 00%. Cov duab kos qhia cov lus qhia tshwj xeeb, cov duab thiab qhov ntev, cov lus qhia rau kev ntxuav casting, kos duab qhia qhov tseem ceeb qhov ntev thiab muab tag nrho qhov ntev ntev. Yog tias tus neeg thov muab tus qauv, qhov loj ntawm qhov casting yuav tsum ua raws li qhov loj me rau tus qauv. Txawm hais tias yuav tsum tau kuaj xyuas hydraulic, thiab yog tias muaj, qhov ntsuas siab thiab tso cai tso cai yuav tsum tau qhia. Ntau yam Cov qauv no qhia txog cov kev xav tau, cov qauv kev sim, qauv thiab kev soj ntsuam cov cai, kos cim, ntim, cia thiab kev thauj mus los rau siab silicon corrosion resistant cam khwb cia hlau. Cov qauv no muaj feem xyuam rau siab silicon corrosion resistant cam khwb cia hlau nrog silicon ntsiab lus ntawm 10, 00% ~ 15. 00%. Normative reference document Cov nqe lus hauv cov ntaub ntawv hauv qab no dhau los ua cov ntsiab lus ntawm Tus Qauv no los ntawm kev siv rau Tus Qauv no. Rau cov ntawv sau hnub tim, tag nrho cov kev hloov kho tom ntej (tsis suav nrog kev ua yuam kev) lossis kev hloov kho yuav tsis siv rau Tus Qauv no; Txawm li cas los xij, ob tog rau kev pom zoo raws li Tus Qauv no raug txhawb kom tshawb xyuas qhov muaj *** versions ntawm cov ntaub ntawv no. Rau cov ntaub ntawv tsis raug lees paub, lawv cov qauv siv tau rau tus qauv no. Cov ntaub ntawv xaj Cov ntaub ntawv hauv qab no yuav tsum muab los ntawm tus neeg thov: a) Tus qauv ua tiav. b) siab silicon cam khwb cia hlau hom. c) Tus naj npawb ntawm castings. d) Casting hnyav. e) Cov duab kos qhia qhov tshwj xeeb, cov duab thiab qhov ntev, cov lus qhia rau kev ntxuav casting, kos duab qhia qhov loj me thiab muab tag nrho qhov ntev ntev. Yog tias tus neeg thov muab tus qauv, qhov loj ntawm qhov casting yuav tsum ua raws li qhov loj me rau tus qauv. Cov kev xaiv hauv kev txiav txim cov ntaub ntawv: a) Kev kho cua sov txheej xwm ntawm lub casting thaum lub sij hawm xa khoom; b) Seb puas yuav muab cov neeg thov nrog cov ntaub ntawv txheeb xyuas tshuaj lom neeg; c) Seb puas yuav tsum tau kuaj khoov; d) Txawm hais tias yuav tsum muaj kev sim hydraulic, thiab yog tias muaj, qhov ntsuas siab thiab qhov tso cai tso cai yuav tsum tau qhia. e) Txhua qhov ntim tshwj xeeb, kos npe, thiab lwm yam. Txoj kev tsim khoom tshwj tsis yog tias tau teev tseg, txoj kev melting thiab casting txheej txheem yuav tsum tau txiav txim los ntawm tus neeg muag khoom. Cov kev xav tau Qib thiab tshuaj lom neeg muaj pes tsawg leeg ntawm siab silicon corrosion resistant cam khwb cia hlau Cov qib qhia txoj kev siab silicon corrosion resistant cam khwb cia hlau ua raws li cov kev cai ntawm GB / T 5612, uas muab faib ua plaub qib. High silicon corrosion resistant cam khwb cia hlau qib thiab coj cov tshuaj muaj pes tsawg leeg pom Kev txais siab ntawm silicon corrosion resistant cam khwb cia hlau yuav tsum tau raws li nws cov tshuaj muaj pes tsawg leeg, uas yuav tsum tau ua raws li cov kev cai ntawm Table 1. Mechanical khoom Cov neeg kho tshuab cov khoom ntawm siab silicon corrosion resistant cam khwb cia. hlau feem ntau tsis coj los ua lub hauv paus rau kev txais. Yog tias xav tau los ntawm tus neeg thov, tus pas ntsuas yuav tsum raug kuaj khoov los txiav txim siab nws lub zog dabtsi yog khoov thiab deflection, thiab cov txiaj ntsig kev xeem yuav tsum ua raws li cov lus qhia 2. (2) High silicon corrosion resistant cam khwb cia hlau yog ib hom ntawm brittle hlau cov ntaub ntawv, nyob rau hauv cov qauv tsim ntawm nws castings yuav tsum tsis txhob yuav ntse thiab ntse hla ntu kev hloov. Lub geometry thiab qhov loj ntawm cov castings yuav tsum ua raws li cov duab kos lossis kev xav tau ntawm tus neeg thov. Yog tias tus Demander tsis muaj qhov tshwj xeeb uas yuav tsum tau ua ntawm qhov ntev ntev ntawm qhov casting, cov kev cai cuam tshuam ntawm GB / T 6414 yuav tsum ua raws. Castings yuav tsum tau ntxuav, trimmed ntau "tawv nqaij", tshem tawm pouring riser, core pob txha, av nplaum xuab zeb thiab puab kab noj hniav residue, thiab lwm yam. Cov seem ntawm pouring riser, npog seam, ya spikes thiab puab kab noj hniav huv si ntawm castings yuav tsum ua raws li cov kos duab. los yog kev xav tau ntawm tus neeg yuav khoom lossis daim ntawv cog lus ntawm ob tog. Sab saum toj: siab silicon corrosion resistant cam khwb cia hlau ntawm cov khoom siv valve (I) Test pas nrig Lub bending test ntawm siab silicon corrosion resistant cam khwb cia hlau txais ib qho kev xeem bar nrog txoj kab uas hla ntawm 30 hli thiab ntev ntawm 330 hli yam tsis muaj tshuab machining. Nws cov lus qhia tshwj xeeb tau pom hauv daim duab 1. Chav tsev: millimeter Lus Cim: Qhov pom zoo casting loj ntawm qhov ntsuas qhov ntsuas yuav tsum tau txias rau 540 ℃ hauv pwm ua ntej xuab zeb poob, thiab qhov seem seem yuav tsum tau muab tshem tawm ua ntej kev sim khoov. Ib qho kev ntsuas kev ntsuas ib leeg yuav tsum tau nchuav rau hauv tib pawg ntawm cov kua hlau ua cov khoom pov tseg (cov pob khoom tseem ceeb thiab zaum kawg yuav tsum tsis txhob siv). Nyob rau hauv tib lub casting pwm, ntau yam kev xeem rods tuaj yeem nchuav rau tib lub sijhawm, thiab cov txheej txheem siv tau pom hauv daim duab 2. Chav tsev: millimeter Geometric thiab dimensional tolerances High silicon corrosion resistant cam khwb cia hlau yog ib yam ntawm cov khoom siv hlau brittle, thiab ntse. cross section hloov yuav tsum tsis txhob yuav tsum tau nyob rau hauv lub structural tsim ntawm nws castings. Lub geometry thiab qhov loj ntawm cov castings yuav tsum ua raws li cov duab kos lossis kev xav tau ntawm tus neeg thov. Yog tias tus Demander tsis muaj qhov tshwj xeeb uas yuav tsum tau ua ntawm qhov ntev ntev ntawm qhov casting, cov kev cai cuam tshuam ntawm GB / T 6414 yuav tsum ua raws. Qhov hnyav sib txawv Yog tias tsis muaj qhov tshwj xeeb xav tau rau kev sib txawv ntawm qhov hnyav, yuav tsum ua raws li cov kev cai ntawm GB / T 11351. Surface quality Lub nto roughness ntawm castings yuav tsum ua raws li GB / T 6061.1 los yog demander's drawings los yog technical specifications. Castings yuav tsum tau ntxuav, trimmed ntau "tawv nqaij", tshem tawm pouring riser, core pob txha, av nplaum xuab zeb thiab puab kab noj hniav residue, thiab lwm yam. Cov seem ntawm pouring riser, npog seam, ya spikes thiab puab kab noj hniav huv si ntawm castings yuav tsum ua raws li cov kos duab. los yog kev xav tau ntawm tus neeg yuav khoom lossis daim ntawv cog lus ntawm ob tog. Casting defect Yuav tsum tsis muaj qhov tsis xws luag uas txo lub zog thiab kev puas tsuaj ntawm cov khoom. Qhov tso cai tsis xws luag thiab txoj kev hnav khaub ncaws yuav tsum tau pom zoo los ntawm ob tog. Kev kho cua sov High silicon cam khwb cia hlau feem ntau yog siv rau hauv lub xeev kho cua sov (kom tshem tawm cov kev ntxhov siab seem). Rau me me castings ntawm cov duab yooj yim, yog tias lawv tau muab los ua cam khwb cia, ob tog yuav tsum pom zoo. Castings yuav tsum tau kho cua sov kom tshem tawm cov kev ntxhov siab seem. Yog tias tus neeg xav tau tsis muaj qhov tshwj xeeb, qhov casting tuaj yeem ua tau raws li hauv qab no: Casting xuab zeb poob rau hauv lub xeev kub kub, tshem tawm tag nrho cov neeg kho tshuab tsis kam mus rau dawb shrinkage ntawm casting, tshem tawm casting risers, liab kub casting ncaj qha rau hauv kev kho cua sov. cub preheating siab tshaj 600 ℃, ces maj mam cua sov, kuj tsis tshua muaj rwb thaiv tsev kub ntawm 870 ℃. Ntawm qhov kub siab tshaj 870 ℃, raws li cov phab ntsa loj ntawm cov castings, lub sij hawm ntawm rwb thaiv tsev yuav tsum yog 1.h / 25mm, tab sis lub sij hawm rwb thaiv tsev yam tsawg kawg nkaus yuav tsum tsis pub tsawg tshaj 2h. Tom qab ntawd nws yog txias ntawm qhov ceev tsis pub tshaj 55 ℃ / 15 min. Nws yog txias rau 205 ℃ nrog lub qhov cub thiab cua txias ntawm qhov kub thiab txias. Tshwj xeeb yuav tsum tau Yog hais tias tus neeg thov yuav tsum tau rau magnetic particle xeem, ultrasonic kuaj, X-ray kuaj, thiab lwm yam, tus neeg thov thiab tus neeg thov yuav tsum sib tham thiab ua raws li cov kev cai ntawm GB/T 9444, GB/T 7233 thiab GB/T 5677 ua. Test method Kev tshuaj ntsuam xyuas Cov Lus Qhia, spectral lossis lwm yam kev ntsuas tau lees paub tab sis yuav tsum tau ua qauv los tsim cov txiaj ntsig zoo ib yam. Cov qauv piv txwv rau kev tshuaj ntsuam xyuas tshuaj yuav tsum tau ua raws li GB / T 20066. Kev ntsuas ntsuas ntawm carbon, silicon, manganese, sulfur thiab phosphorus nyob rau hauv cov tshuaj muaj pes tsawg leeg tau xam raws li GB / T 20123 lossis GB / T 223.69, GB / T 223.60, GB / T 223. 58 lossis GB / T 223. 64, GB / T 223. 3 lossis GB / T 223. 59 lossis GB / T 223. 61, GB / T 223. 53 Chrome, qhov tseem ceeb, tooj liab arbitration Kev tsom xam yuav tsum ua raws li GB / T 223.11 lossis GB / T 223.12, GB / T 223.26, GB / T 223.18 lossis GB / T 223.19 lossis GB / T 223.53, raws li. Txoj kev spectral sampling yog ua raws li GB/T 5678 thiab GB/T 14203. Txoj kev tsom xam spectral yuav tsum tau ua raws li GB/T 20125.