Iyo plasma arc combustion modhi yekutarisa yakasvibira zvinhu zvegedhi revhavha kugadzirisa

Iyo plasma arc combustion modhi yekutarisa yakasvibira zvinhu zvegedhi revhavha kugadzirisa

Forging, forging, forging simbi vharafu inongonzi inonyanya kushandiswa kugadzira Stainless simbi gedhi vharafu, forging simbi inoreva kusarudzwa kwefogi nzira uye inogadzirwa neakasiyana ekugadzira nekukanda simbi.
Hunhu hwehukama hwesimbi yesimbi yesimbi isina tsvina castings yakakwira, inogona kumira simba rekuita, plastiki, kuomarara uye zvimwe zvinhu zvemuviri zvimiro zvakakwirira kudarika simbi isina tsvina, saka pese panofanirwa kushandiswa mamwe makina akakosha simbi. , simbi yakaumbwa ndiyo inowanzo shandiswa pakumanikidza pombi.
Iine dhizaini yakapfava, yakakodzera kune yakanyanya kudzvanywa basa maitiro.
Forging chimwe chezvikamu zviviri zvekukanda. Zvikamu zvakakosha zvine mutoro wakakwirira uye zvakaoma kushanda zvisikwa mumichina michina yakawanda yakakandwa simbi zvikamu, zviri nyore uye zvinogona kutonhora-akakungurutswa welds, kunze kwealuminium profile plate.
Makomba eWelding uye as-cast looseness yesimbi composites inogona kubviswa nekugadzira.
Sarudzo chaiyo yefogi cheki yekuvandudza chigadzirwa chemhando, kudzora mutengo kune hukama hukuru.
Zvikuru zvekuumba zvinhu ndeye kabhoni simbi, Stainless simbi ndiro uye kabhoni simbi.
Chirevo chekuforoma (Forging ratio) zvinoreva chiyero chechikamu chechikamu chechikamu chechikamu chesimbi isati yakoromoka kunzvimbo inopwanya kufa mushure mekuparara.
Mamiriro ekutanga ezvigadzirwa zvinosanganisira kukanda, tsvimbo dzakatenderedza, chimiro chendangariro alloys uye simbi hupfu.
Mamiriro enyama esimbi anokandwa kazhinji ari nani pane ayo emidziyo yakafanana. Forging inogadzirwa nekutsikirira simbi embryo ine midziyo yekugadzira, kuitira kuti chimiro cheiyo alloy embryo ishandurwe kuti iwane tekinoroji yekugadzira ine mamwe maumbirwo echimiro uye yakanaka yemuviri zvimiro.
Forging steel valve structure processing technology: valve body quality uye maitiro anokanganisa zvakananga hupenyu hwebasa rekushanda kwegedhi valve uye kuchengetedza chinhu.
Nokudaro, muviri wevhavha wakagadzirwa unofanirwa kushandiswa pasi pemamiriro ekushanda kusina kunaka kana kuti yakakwirira yekuchengetedza zvinodiwa zvevhavha yegedhi.
Kune DN50 yekumisa vharafu, yekumisa vharafu, cheki vharafu, zvichingodaro, mazhinji emumba anoshandisa iyo yakazara forging kuumba mushure mewelding pamativi ese eiyo flange process, kune zvakare vanogadzira vanobatana flange forging pamwechete.
Asi kwema 2 inches pamusoro peiyo diki caliber valve body, nekuda kwekushaikwa kwekugadzika kunodiwa neakanyanya kurema akawanda-directional forging muchina michina, kuda kuita maindasitiri ehombe hombe yekugadzira zvikamu kune kumwe kuoma. Naizvozvo, vagadziri vazhinji kubva kunze kwenyika huru uye yepakati-saizi mavharuvhu kukanda muviri, kana nemamwe makambani mune dzimwe nyika kukudziridza kushandiswa kwenhengo dzemuviri dzevharuvhu.
Taichenson akagovera tekinoroji nyowani yekushandisa yekugera extrusion yevharuvhu yemuviri yakakura uye yepakati saizi yeforged simbi valve. Nekutora mukana wezvakanakira kuchengetedzwa kwezvakatipoteredza, kuchengetedza simba nekuchengetedza vashandi, maererano nekuyedza tsvakiridzo yevharuvhu yekugadzira tekinoroji, iyo tekinoroji index yekuveura extrusion yevharuvhu muviri yakawanikwa.
Iyo yese maitiro ekugera - extrusion kuumbwa kunofanirwa kutora deformation yeshear seyakanyanya maitiro esimbi epurasitiki kugadzirisa. Chimiro chechimiro chemichina yekugadzira tekinoroji ndechekuti simba rinoshandiswa rinogona kudzikiswa.
Zvakare, zvinoderedza zvakanyanya huwandu hwematani emuchina anodiwa pakuita kwese kuumbwa.
FIG. l inoratidza musimboti wekutanga we scissor-extrusion kuumbwa kwebazi uye forogo zvikamu.
Mutsara we diagonal pamufananidzo unoratidza shear deformation zone mushear - extrusion forming process.
Kwete chete iyo inoburitsa yakakura shear deformation yakatenderedza oblique mutsara.
Imwe yese trichoderm inoburitsa akati wandei akasiyana siyana. Pasi pesimba retsono.
Simbi iri pakati pemabhandi maviri eshear inoyerera ichipinda mugomba remakoni emudziyo wekukuya nenzira yakafanana, uye forogo inogadzirwa.
Zvemuviri wevharuvhu wakachekwa une maforogo maviri anoratidzwa mumufananidzo 2.
Iko kucheka extrusion kuumba yekumusoro bazi forogo uye wozoumba rezasi bazi forogo, 2 bazi forogo kuumba anogonawo kuitwa musitiroko urongwa tsono. Pamberi pemuviri wevharuvhu kuti uite tsvakiridzo yesainzi ye sciss-extrusion kugadzirwa uye yekushanda process bvunzo, yekutanga kusarudzwa kwe t / 3 tsoka dze shrinkage chikamu kuita yepanyama simulation tsvagiridzo yesainzi, tora iyo referensi process index ye sciss. -extrusion kuumba, kuitira kuti ugadzire iyo huru parameters yekugadzira uye kushanda maitiro bvunzo.
Tora tekinoroji yekugadzirisa yeDN100 yakachekwa-vhavha muviri semuenzaniso, maererano netsvakiridzo yesainzi yekugadzirwa kwemaitiro process test.
Iyo process index yeDNlOOmm yakachekwa-off valve body ine 20 simbi shear extrusion material inowanikwa sezvizvi: tembiricha yekudziya yebvudzi embryo sample is 1200 ℃, uye tembiricha yekudziya yegiyo iri 100 ~ 300 ″C.
High kuchena graphite liquid agent inosarudzwa semafuta.
Iyo tsono yekubaya yakadzikwa, uye yekubaya tsono aperture iri ~'108mm. Mienzaniso inhengo dzisina chinhu dzine maflange. Mudziyo wekuyedza lO00t clutch screw press, uye maparamita makuru ekushanda anoratidzwa muTafura l. Zvimiro zvemuviri mukugadzira zvakadai se.
Zvinoenderana neakanyanya kushanda paramita yemuchina wekubaya uye musimboti weshear - extrusion process yemuenzaniso, seti yekukuya zvishandiso inogadzirwa. Pamberi pekuedza, saizi yesimba inodiwa inoverengerwa zvinoenderana nemhedzisiro yekumisikidza bvunzo, iyo yakatarwa yesimbi castings uye mechanical zvimiro zvesimbi castings.
Mushure mekuverenga uye kuverenga, iyo 1O00t punching muchina unogona kusangana nezvinodiwa zveQi. Iko kuumbwa kweiyo diki dhayamita yakachekwa-kurevhavhavha muviri inoonekwa mune yakakura, diki uye yepakati-saizi midziyo, iyo inoratidza kuti yekucheka uye extrusion kuumba maitiro ane hunhu hwekuchengetedza kwezvakatipoteredza, kuchengetedza simba nekuchengetedza basa.
Inokwanisa kuumba iyo yakazara yekugadzira yehombe uye yepakati-saizi yekucheka-kuvhavhavhavha muviri mumidziyo yeChina yazvino.
Pamusoro pe.
Kugadzira nekuumbwa kwepombi yeti uye mamwe maforogo makuru uye epakati nepakati anogona kudzidzwa nesainzi nehunyanzvi hwekugera nekudzvinya.
Forging inogona kukamurwa kuita: (1) yakavharwa forging (yemahara forging).
Inogona kupatsanurwa kuita yemahara forging, rotary forging, inotonhora extrusion, extrusion form, nezvimwewo, iyo alloy embryo inoiswa mufogi kufa neimwe chimiro kumanikidza deformation uye kutora simbi yakakandwa. Zvinoenderana netembiricha ye deformation, inogona kukamurwa kuita inotonhora yekubikira (tembiricha yekugadzira yakajairika tembiricha), inodziya yekugadzira (yekunyepedzera tembiricha yakaderera pane recrystallization tembiricha yeembryo simbi) uye inopisa yekubikira (tembiricha yekuumba yakakwira kupfuura tembiricha yerecrystallization) .
(2) kuvhura kuvhura (kufoja mahara).
Kune nzira mbiri dzekugadzira manyore uye mechanical forging. Iyo alloy embryo inoiswa pakati pezvivharo zviviri zveanvil (iron) uye simba rekuita kana mutoro unoshandiswa kukonzera deformation yealloy embryo kuti uwane kukanda simbi.
Kuenzanisa kwemavharuvhu esimbi akaumbwa uye akakandwa: Mavharuvhu esimbi anokandwa anoshandiswa kukanda simbi muzvikamu zvekukanda.
Mhando yekukanda alloy.
Simbi yekukanda yakakamurwa kuita zvikamu zvitatu: cast carbon steel, forged high alloy simbi uye forged special simbi.
Steel casting imhando yekukanda simbi yakagadzirwa nenzira yekukanda.
Steel castings anonyanya kushandiswa kugadzira zvimwe zvikamu zvakaoma mukutaridzika, zvakaoma kuumbwa kana kugaya uye zvinoda simba repamusoro uye plastiki.
Izvo zvakashata zvekukanda simbi ndezvekuti kana zvichienzaniswa nesimbi yakaumbwa, kusakanganiswa kwegomba rejecha kwakakura, uye mashini yacho yakanyatso kuchinjika, uye simba rekudzvanya harina kunaka sesimbi yakagadzirwa. Naizvozvo, mavharuvhu esimbi akaumbwa anowanzo kushandiswa senzvimbo inotungamira muzvikamu zvakakosha zvepombi pasi pekumanikidzwa kwakanyanya uye kuenderera kwekushisa kwakanyanya.
Kugadzira, kuumba, kuumba simbi yevhavha tekinoroji yekuvandudza chirongwa: zvinodikanwa kushandisa ** musoro wekuwedzera, kune vharafu regedhi mushure mekuiswa mugedhi rekuchengetedza (safety channel aperture size kushivirira kune zvine musoro kutonga) senzvimbo yekumisikidza, mativi ese kuwedzera panguva imwe chete.
Forged simbi vharafu muviri rebound simba kupfuura yakakwirira kumanikidza gedhi vharafu rebound simba, vharafu muviri gomba zvakasimba akaputirwa high pressure gedhi vharafu, hapana gap, compact chimiro. Naizvozvo, iyo axial mutoro unofanirwa kunyatsodzorwa.
Kana iyo yakakwira yekumanikidza gedhi vharafu inotsikirirwa kumuviri wevhavha, iyo yevhavha yemuviri mhango inofanira kuchinjwa mumuganhu we elastic, kuti ive nechokwadi chekuti mushure mekuwedzera kwesimba ranyangarika, iyo valve body cavity back elasticity, kuzadza iyo yakakwira yekumanikidza gedhi valve kumashure elasticity, zvekuti vanonamatira kune mumwe nemumwe, kuitira kudzikamisa iyo yakakura kwazvo axial mutoro.
Kuti udzivise kuiswa kwakanyanya kwekunetseka kwepasi, kusimba kwesimbi yesimbi yesimbi yakakwira kumanikidza gedhi revhavha muswe zvinhu hazvisi nyore kune yakakwirira, yakanaka plastiki uye yakaderera simba, uye kutonga kuisirwa mutoro.
Panguva imwecheteyo, kuitira kuti ive nechokwadi chokuti iyo high pressure gate valve pressure distribution distribution mushure mekushaya simba rebound, panofanira kuva nekugadzirisa kwakakwana, kuitira kuti iyo yakakwirira yegedhi yevhavha muswe chikamu urefu haisi pasi pekaviri ukobvu hwayo.
Sarudza "mushure mekurodha" tekinoroji yekugadzirisa, inogona kuve nechokwadi chemhando, yekugadzira simbi vharafu yakakwira kumanikidza gedhi revhavha kugadzirwa uye kugadzirisa kuri nyore, kuvandudza kushanda kwakanyanya kwemuchina wekurongedza. Iyo plasma arc combustion nzira yekutarisa mbishi yegedhi revhavha yekugadzira tekinoroji mumuromo ichidyisa plasma yakatarisana, hupfu hunoiswa pasi pekudziya kwakaringana, asi kwete kuderedza kuputika kwehupfu, kuitira kuti chiyero chakanyanya kunyungudika chiwanikwe.
Kunyanya kusakosha kwekudyisa hupfu mumuromo ndeyekuti yakanyungudutswa yealuminium alloy inonamatira kumuromo.
Yakanyungudutswa aruminiyamu alloy inonamatira kumadziro emuromo kana kupinza uye kubuda kune imwe nhamba yakazara yekuwira mudziva remhinduro, zvichikonzera kunyunguduka madonhwe, zvakanyanya kuipa kana uchivharira gomba remuromo.
Kuti udzivise mamiriro ari pamusoro apa, tungsten danda uye gomba remuromo rinofanirwa kuve nepamusoro coaxiality kuti ive nechokwadi chekuti alloy poda inotumirwa kunze zvakaenzana kubva mumuromo. Mukuwedzera, kuyerera kwehupfu gasi kunofanira kunge kwakakodzera, kwete kukonzera kufamba kwedutu.
(1) Plasma arc combustion mode (1) Yakasanganiswa plasma arc: isiri-inotama arc inoshandiswa pakupisa alloy powder: kutama arc hakugoni kungodziya kwehupfu hwehupfu, asiwo kunyunguduka pamusoro pezvinhu zvepakutanga.
Nokuda kwe-self-fusible alloy powder surfacing, nokuda kwepamusoro pehupfu yakanyunguduka, mhedzisiro yearcs isiri-inotama haisi pachena: kana ichisvika poda yakatsetseka ine nzvimbo yakanyanyisa kunyunguduka, mhedzisiro yearcs isiri-inotama iri pachena.
Iyo yekumusoro welding yezvikamu zvitete uye zvidiki zvinonyanya kutora zvakasanganiswa plasma arc.
(2) Transferable plasma arc: Sezvo isingachinjiki arc isingaite basa rakakosha, munzvimbo dzakawanda chete inochinjika arc inoshandiswa kuita pamusoro, iyo inogona kuchengetedza seti yekuchinjisa magetsi.
(3) Iyo yakasanganiswa plasma arc yenhevedzano yemagetsi arc: ine mukana wekuti iyo yakanaka ion arc inogadzirwa pakati pemhuno nechikamu chezasi hazvisi nyore kuwedzera simba rekuvhuvhuta redutu padziva rakanyungudutswa, rinogona kudzikamisa kunyungudika kudzika.
Kunyangwe iyi arc yekudziya yakapararira, inogona kuramba ichichengetedza yakakwana. Iyo plasma arc ine nzira iyi inoshandiswa kugadzirisa ikozvino kuyerera kweiyo yakanaka ion arc. Kana kuyerera kwazvino kuchiwedzera, iyo nozzle ablation yakanyanya kuoma, asi kuvandudzwa kwemvura inotonhora kupisa kupisa, mamiriro aya anogona kuvandudzwa.
Iyo plasma arc nzira haiwanzo kushandiswa muChina.
(2) Nzira yekuendesa hupfu Parizvino, marudzi maviri ehupfu nzira dzinoshandiswa: kuendesa hupfu mukati memuromo uye kuendesa hupfu kunze kwemuromo. Munozzle yekudyisa plasma yakatarisana, hupfu hunoiswa pasi pekudziya kwakaringana, asi zvakare kuderedza kuputika kwehupfu, hunogona kuwana huwandu hwekunyungudika.
Chinhu chikuru chakaipa chekutumira hupfu mumuromo ndechokuti yakanyungudutswa yealuminium alloy inonamatira kumuromo.
Yakanyungudutswa aruminiyamu alloy inonamatira kumadziro emuromo kana kupinza uye kubuda kune imwe nhamba yakazara yekuwira mudziva remhinduro, zvichikonzera kunyunguduka madonhwe, zvakanyanya kuipa kana uchivharira gomba remuromo.
Kuti udzivise mamiriro ari pamusoro apa, tungsten danda uye gomba remuromo rinofanirwa kuve nepamusoro coaxiality kuti ive nechokwadi chekuti alloy poda inotumirwa kunze zvakaenzana kubva mumuromo. Mukuwedzera, kuyerera kwehupfu gasi kunofanira kunge kwakakodzera, kwete kukonzera kufamba kwedutu. Munozzle plasma yakatarisana, iyo alloy poda haina kutumirwa muplasma arc kunze kwenozzle, iyo inogadzirisa zvinogadzirisa dambudziko rekudonha uye kuvhara muromo. Kunyunguduka kwakadzika pasi pechiyero chakafanana idiki pane muromo wehupfu yekudyisa, izvi zvinodaro nekuti kana mukanwa uchidyisa hupfu, dutu rehupfu mumhuno rave richipisa zvakanyanya, uye richifuridzirwa zvakananga kune dziva remhinduro, zvichikonzera kuwedzera kukuru kuvhuvhuta simba. : uye kana mukanwa uchidyisa hupfu, simba rekuwedzera rinofuridza rinokonzerwa negasi rehupfu rinoderedzwa.
Izvo zvakanyanya kuipa kwekutumira hupfu kunze kwemuromo ihombe yekuparadzira nhanho uye yakaderera aluminium alloy stacking rate.
(3) Plasma inotarisa chitsinga uye alloy poda inowanzo shandisa pure hydrogen inoshanda gasi (inozivikanwawo seyakanaka ion gasi, arc inodzikamisa gasi), gasi rehupfu uye gasi rekudzivirira.
Hydrogen plasma arc ine yakaderera ikozvino, yakagadzikana inobatidza, diki tungsten electrode uye nozzle ablation.
Zvimwe zvekushandisa mhiri kwemakungwa 70% hydrogen uye 30% helium segasi kana hupfu gasi, izvo zvinoita kuti simba rekushanda replasma arc risimuke, uye nekudaro rine simba rakakura uye kugona kugadzira.
Nitrogen inoshandawo nemazvo segasi rekudzivirira, asi iri shoma uye inodhura.
Pasi pemamiriro ekuvimbisa kukwana kwakakwana uye symmetry yeplasma arc kutumira alloy powder, kuyerera kwese kwekushanda gasi uye poda yekutakura gasi inofanira kuderedzwa sezvinobvira, kuitira kuderedza simba rinoputika dutu. Iyo gasi yekudzivirira inoda kuyerera kwakakwana kuti ishande. Nekuda kwekuti iyo alloy poda yeplasma arc inokwira inongozvivharisa yega, hapana gasi rinodzivirira harigone kuve nekukanganisa kwakakosha pamhando yekukwira, asi muromo uri nyore kwazvo kudururwa kunze kwedhamu resimbi jecha rakasviba.
Iyo yakatsetseka iyo particle saizi yekugovera yealloy poda yekukwira, zviri nyore kunyungudika, asi yakawandisa poda yakaoma kusvika paupfu.
Yakanyanya kukora hupfu haisi nyore kunyunguduka, asi zvakare nyore kubhururuka kunze kwenzvimbo yakatarisana, kuitira kuti upfu urasikirwe.
Iyo yakakodzera saizi renji ndeye 0.06 kusvika 0.112mm (120 kusvika 230 mesh/ft).
Kuti udzivise hupfu hunyungudika mumhuno zvichikonzera plugging mamiriro, muChina inoshandiswawo yakatsetseka poda (40-120 mesh/ft) pamusoro.