1. Kuongorora kwemaitiro
(1) Izvibutterfly valveine denderedzwa yakaita sekeke chimiro, mukati memukati yakabatana uye inotsigirwa ne8 inosimbisa mbabvu, yepamusoro Φ620 hole inotaurirana nemukati memukati, uye mamwe esevharafuyakavharwa, iyo jecha musimboti inonetsa kugadzirisa uye nyore kuremara. Zvese zviri zviviri kubuda nekucheneswa kwemukati megomba zvinounza matambudziko makuru, sezvakaratidzwa muMufananidzo 1.
Ukobvu hwemadziro hwema castings hunosiyana zvakanyanya, iyo yakakura madziro ukobvu hunosvika 380mm, uye hushoma hwemadziro ukobvu ndeye 36mm chete. Kana kukanda kwakasimba, mutsauko wekushisa wakakura, uye shrinkage isina kuenzana inogona kuburitsa zviri nyore shrinkage cavities uye shrinkage porosity defects, izvo zvinokonzeresa kuyerera kwemvura muyedzo yehydraulic.
2. Maitiro ekugadzira:
(1) Nzvimbo yekupatsanura inoratidzwa muMufananidzo 1. Isa magumo ane maburi pabhokisi repamusoro, ita jecha rose mukati mukati memukati wepakati, uye urebese musoro wepakati zvakakodzera kuti ufambise kusungirirwa kwejecha core uye kufamba kwe iyo jecha musimboti kana bhokisi rakashandurwa. Yakagadzika, kureba kweiyo cantilever core musoro wemakomba maviri ari padivi akareba kupfuura kureba kwegomba, zvekuti nzvimbo yegiravhiti yejecha rese repakati inorerekera kudivi remusoro wepakati kuona kuti jecha core inogadziriswa uye yakagadzikana.
Semi-yakavharwa yekudira sisitimu inogamuchirwa, ∑F mukati: ∑F yakachinjika: ∑F yakatwasuka=1:1.5:1.3, sprue inoshandisa ceramic chubhu ine dhayamita yemukati ye Φ120, uye zvidimbu zviviri zve200×100×40mm refractory. zvidhinha zvinoiswa pazasi kudzivirira simbi yakanyungudutswa kubva zvakananga For the impact sand mold, a 150 × 150 × 40 foam ceramic sefa inoiswa pazasi pemumhanyi, uye gumi nemaviri machubhu eceramic ane dhayamita yemukati ye Φ30 anoshandiswa kuti mumhanyi wemukati abatanidze zvakaenzana kusvika pasi pekukanda kuburikidza netangi yekuunganidza mvura pazasi. yesefa kuita chirongwa chekudira pasi, sezvinoratidzwa mumufananidzo 2 Essence
(3) Isa 14 ∮ 20 mhango maburi emhepo muforoma yepamusoro, isa Φ200 jecha repakati pepakati pepakati pemusoro wepakati, isa simbi inotonhora munzvimbo dzakakora uye dzakakura kuti uve nechokwadi chekusimba kwekukandira, uye shandisa graphitization yekuwedzera musimboti wekukanzura Iyo yekudyisa riser inoshandiswa kuvandudza maitiro egoho. Saizi yebhokisi rejecha 3600 × 3600 × 1000/600mm, uye yakasungwa ne 25mm gobvu simbi ndiro kuti ive nechokwadi chakakwana uye kusimba, sezvakaratidzwa mumufananidzo 3.
3. Kudzora maitiro
(1) Kuenzanisira: Usati wafananidzira, shandisa Φ50 × 50mm chiyero chemuenzaniso kuti uedze simba rinomanikidzika rejecha resin ≥ 3.5MPa, uye simbisa simbi inotonhora uye mumhanyi kuti ave nechokwadi chokuti mold yejecha ine simba rakakwana rekugadzirisa girafu inogadzirwa. apo simbi yakanyungudutswa inoomesa Kemikari kuwedzera, uye kudzivirira simbi yakanyunguduka kubva pakukanganisa chikamu chekumhanya kwenguva yakareba kukonzera jecha kugezwa.
Core kugadzira: Iyo jecha musimboti wakakamurwa kuita zvikamu zvisere zvakaenzana ne8 mbabvu dzinosimbisa, dzakabatanidzwa nepakati pepakati. Iko hakuna imwe tsigiro uye exhaust zvikamu kunze kweyepakati core musoro. Kana iyo jecha musimboti isingagone kugadziriswa uye Exhaust, jecha core displacement uye maburi emhepo anozoonekwa mushure mekudururwa. Nekuti nzvimbo yese yejecha core yakakura, yakakamurwa kuita zvikamu zvisere. Inofanira kunge iine simba rakakwana uye kusimba kuti ive nechokwadi chekuti jecha rejecha harizokuvadzwa mushure mekusunungurwa kwe mold, uye harizokuvadzwa mushure mekudururwa. Deformation inoitika, kuitira kuti ive nechokwadi chekuti yunifomu yemadziro ukobvu hwekukanda. Nechikonzero ichi, isu takanyatso gadzira yakakosha bhonzo, uye tikaisungirira pane yepakati bhonzo netambo yemhepo yekukwevera gasi rekuburitsa kubva mumusoro wepakati kuti ive nechokwadi chekubatana kwejecha mold pakugadzira iyo musimboti. Sezvinoratidzwa Mufananidzo 4.
(4) Bhokisi rekuvhara: Tichifunga kuti zvakaoma kuchenesa jecha mukati memukati wevhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavha yejecha rose rakapendwa nezvidimbu zviviri zvependi,yekutanga layer inopushwa nedoro-based zirconium paint (Baume degree. 45-55), uye chikamu chekutanga chinopendwa nekupiswa. Mushure mekuoma, penda chikamu chechipiri nedoro-based magnesium pendi (Baume degree 35-45) kudzivirira kukanda kubva pakunamatira kune jecha uye kunyura, izvo zvisingagoni kucheneswa. Iyo yepakati musoro chikamu chakaturikwa pa Φ200 simbi pombi yeiyo huru chimiro chepakati bhonzo ine matatu M25 screws, yakagadziriswa uye yakavharwa nepamusoro mold sand box ine screw caps uye yakatariswa kana kukora kwemadziro kwechikamu chimwe nechimwe kwakafanana.
4. Kunyunguduka nekudurura nzira
(1) Shandisa Benxi yakaderera-P, S, Ti yepamusoro-soro Q14 / 16 # yenguruve iron, uye uwedzere pachiyero che 40% ~ 60%; kutsvaga zvinhu zvakadai seP, S, Ti, Cr, Pb, nezvimwewo zvinonyatsodzorwa musimbi yakaraswa, uye hapana ngura nemafuta zvinotenderwa, chiyero chekuwedzera chiri 25% ~ 40%; mari yakadzorerwa inofanira kucheneswa nekuputika kwepfuti isati yashandiswa kuti ive nechokwadi chekucheneswa kwemhosva.
(2) Chikamu chikuru chekutonga mushure mevira: C: 3.5-3.65%, Si: 2.2% -2.45%, Mn: 0.25% -0.35%, P≤0.05%, S: ≤0.01%, Mg (yakasara): 0.035% ~ 0.05%, pasi pemamiriro ekuvimbisa spheroidization, yakaderera muganhu weMg (yakasara) inofanira kutorwa zvakanyanya sezvinobvira.
(3) Spheroidization inoculation treatment: pasi-magnesium uye pasi-rare-earth spheroidizers inoshandiswa, uye kuwedzera kwehuwandu ndeye 1.0% ~ 1.2%. Yakajairika flushing nzira spheroidization kurapwa, 0.15% yenguva imwe-inoculation yakavharwa pane nodulizer pazasi pasuru, uye spheroidization inopedzwa. Iyo slag inobva yaiswa pasi pechipiri inoculation ye 0.35%, uye kuyerera inoculation ye 0.15% inoitwa panguva yekudira.
(5) Kupisa kwakaderera kwekukurumidza kudira nzira inogamuchirwa, tembiricha yekudurura i1320 ° C ~ 1340 ° C, uye nguva yekudurura i70 ~ 80s. Simbi yakanyungudutswa haigone kukanganiswa panguva yekudururwa, uye mukombe wesprue unogara wakazara kudzivirira gasi uye inclusions kubva pakubatanidzwa mukuumbwa kuburikidza nemumhanyi. mhango.
5. Kukanda bvunzo mhinduro
(1) Edza simba rekusimba reiyo cast test block: 485MPa, kureba: 15%, Brinell kuoma HB187.
(2) The spheroidization rate i95%, saizi yegraphite igiredhi 6, uye pearlite i35%. Iyo metallographic chimiro inoratidzwa muMufananidzo 5.
(3) Hapana kurekodha kuremara kwakawanikwa muUT uye MT yechipiri chikanganiso chekuonekwa kwezvikamu zvakakosha.
(4) Chitarisiko chakapfava uye chakapfava (ona Mufananidzo 6), pasina kukanda zvikanganiso zvakadai sejecha inclusions, slag inclusions, inotonhora inovhara, nezvimwewo, rusvingo rwemadziro rwakafanana, uye zviyero zvinosangana nezvinodiwa zvemifananidzo.
(6) 20kg / cm2 hydraulic pressure test mushure mekugadzirisa haina kuratidza chero kuvuza
6. Mhedziso
Zvinoenderana nehunhu hweiyo butterfly vharafu, dambudziko rekusagadzikana uye nyore deformation yeguru jecha repakati uye rakaomarara kuchenesa jecha rinogadziriswa nekusimbisa dhizaini yehurongwa hwekuita, kugadzirwa uye kugadzirisa kwejecha core uye kushandisa zirconium-based coatings. Kuiswa kwemaburi emhepo kunodzivirira mukana wepores mukukanda. Kubva pachoto chekuchajisa uye mumhanyi system, foam ceramic filter screen uye ceramic ingate tekinoroji inoshandiswa kuve nechokwadi chekuchena kwesimbi yakanyungudutswa. Mushure mekurapa kwakawanda inoculation, iyo metallographic chimiro checastings uye dzakasiyana-siyana Kuita kwakazara kwasvika kune zvakajairwa zvinodiwa nevatengi.
KubvaTianjin Tanggu Mvura-chisimbiso vharafu Co., Ltd. Butterfly valve, vharafu yegedhi, Y-strainer, wafer dual plate check valvekugadzira.
Nguva yekutumira: Kubvumbi-29-2023
