Paunoti 'chikamu chinopisa kupisa', vanhu vazhinji vanofananidzira chubhu kana chimbi. Ndiyo yekutanga kusanzwisisa. Muchokwadi, inhengo inotsanangurwa nebasa rayo mukati meiyo thermal system, uye basa iro rinoenderana zvachose nejometri, kuvimbika kwezvinhu, uye kusangana kwepasi. Ndakaona madhirowa akawandisa apo chinotariswa chiri pazviyero zvekupedzisira, tichiregeredza rwendo rwunotorwa nesimbi kusvika ikoko — nzira yekukanda, mvumo yekugadzira, chimiro chezviyo. Ndiko kunowanzo tanga kukundikana, kwete mukushanda, asi mukutsanangurwa.
Nheyo: Inotanga neCast
Iwe haugone kugadzira chikamu chakavimbika kubva pakukanda kwakashata. Izvi zvinoratidzika sezviri pachena, asi zvinogara zvichitarisirwa pasi. For kupisa exchanger zvikamu senge misoro yakaoma, manifolds, kana majaketi emvura, ndima dzemukati ndizvo zvese. Kuchinja kudiki mukati mepakati panguva shell mold casting inogona kugadzira nzvimbo yakatetepa inova nzvimbo yekukundikana pasi pekupisa bhasikoro. Isu takadzidza izvi kare nemutengi's compressor intercooler end cap. Kudhinda kwacho kwaidaidza kukora kwemadziro, asi yekutanga kukanda jecha yaisakwanisa kuramba yakabatirira musimboti wemukati. Zvakaguma nei? A 30% chirairo mwero pabatch yekutanga mushure mekugadzira, nekuti iyo CNC probe yakaramba ichiwana voids. Chikamu chacho chaitaridzika zvakanaka kunze, asi chakanga chakakanganiswa mukati.
Ndosaka kune zvinomanikidza-ine kana yakakwira-thermal-stress zvikamu, isu tinowanzo kusundira vatengi kuenda Investment casting kune yekutanga fomu. Kurongeka kwedimensional uye kupera kwepasi kubva pakutanga kwakakwira, kunyanya kune idzo dzakaomesesa dzemukati machanera. Ehe, inodhura pachidimbu pachikamu cheforoma, asi iwe unochengetedza mari yakawanda mukugadzira nguva uye kutambisa zvinhu. Uri kupa chirongwa cheCNC mukana wekurwa. Ndinoyeuka purojekiti yendiro yekupisa exchanger furemu mu 316L isina tsvina apo chinja kubva kune yakagadzirwa weldment kuenda kune monolithic investment casting inocheka iyo yose chikamu chemutengo neanenge 15% apo iwe wakagadzirisa kubviswa kwemashure-weld kupisa kurapwa uye yakaderedzwa machining inopfuura.
Sarudzo yezvinhu pano haina kupatsanurwa kubva mukuita. Kutsanangura a nickel-based alloy kufanana neInconel 625 kune yakakwira-tembiricha gasi duct? Iwe unenge uchitotarisa kune investment casting. Iyo fluidity yesimbi mukuita ikoko, yakasanganiswa neiyo alloy's inherent inopisa simba, inokupa iwe yakanyatsovimbika yekutanga isina chinhu pane kuyedza muchina zvese kubva kune yakasimba block. Vanhu vari Qingdao Qiangsenyuan Technology Co., Ltd. (QSY) vane pfungwa pavanosimbisa basa ravo neizvi special alloys. Hakusi kungova nezvinhu zvacho mudura; ndezvekuziva mabatiro azvinoita panguva yekusimba mumagoko avo molds, ingani shrinkage yekutarisira, kwekuisa ma risers. Iwo makore makumi matatu avanotaura mukukanda haisi mutsara wekutengesa; ndiyo inochengeterwa ruzivo inodzivirira $50,000 alloy kunyungudika kubva pakushanduka kuita marara.
Iyo Machining Chokwadi: Kushivirira ikurukurirano
Hechino chimwe chokwadi chinoshanda: kushivirira padhirowa kunowanzova runyorwa rwechishuwo, kwete chirongwa chekugadzira. Mugadziri anogona kudaidzira ± 0.02mm kushivirira pane bhaudhi denderedzwa kune chubhu bepa. Asi kana chikamu icho chiri kuzosangana ne 150 ° C tembiricha inotenderera musevhisi, vakaisa muhumwe hwekuwedzera kwekupisa kweiyo chaiyo. simbi yakakandwa giredhi? Dzimwe nguva, kubata kushivirira kwakasimba patembiricha yekamuri kunovimbisa dambudziko rekukwana panguva yekushandisa. Basa racho rinova nhaurirano-kutsanangura izvi, zvichiratidza kushivirira kunoshanda, kana dzimwe nguva, kupa mazano akasiyana zvachose.
CNC machining ndipo panoberekerwa mashandiro echikamu. Chiso chinonamira chegasket, shinda yemudziyo wekupisa, gomo remhete yekusimbisa. Kukurukurirana pakuvhiya kwakatarisana, chidzitiro chakasakara zvishoma chichisiya mupendero wemicroscopic - idzi hadzisi nyaya dzekunakisa chete. Ndidzo nzira dzekuvuza kana kuti zvinokonzeresa kushushikana. Ini ndinorangarira batch yeheat exchanger end caps uko O-ring groove yaive nekupera kwakanaka, asi radius pazasi yaigadzirwa nebvudzi rakanyanya kupinza zvinoenderana nechokushandisa. Yakapfuura QC paCMM. Yakakundikana mukuyedzwa kwekumanikidza nguva dzese, ichitsemuka kubva paradius iyoyo. Kugadzirisa kwanga kusiri shanduko yehurongwa; yakanga ichichinjira kuchishandiso chakatsaurirwa kuchekwa-chekwa chine radius yakasimbiswa, isingatsamiri panzira yechigayo chemhino.
Apa ndipo pane zvitoro zvakabatanidzwa zvine mukana. Tora kambani yakafanana QSY. Kana vari kubata ese ari maviri shell mold casting uye CNC machining mumba, iyo mhinduro loop ipfupi. Iyo machinist inowana nzvimbo yakaoma kana subsurface porosity mukukanda. Panzvimbo pekungobvisa chikamu, ruzivo irworwo rwunodzokera zvakananga kuchikwata chevatangi vepedyo. Vanogona kugadzirisa tembiricha yekudurura kana mold coating ye batch rinotevera. Iyi kubatanidzwa-nzvimbo yemaitiro yakakosha kune yakaoma, yakakwirira-yakakosha zvikamu. Hausi kungotenga sevhisi yekugadzira kana yekukanda; uri kutenga nzira yekugadzirisa nekugadzirisa.
Material Haisi Ingori Chete Chete
ASTM A351 CF8M inokuudza kuti isimbi isina tsvina yakafanana ne 316. Haikuudze nezve ferrite content, iyo inokanganisa zvose kurwisana nekuora uye machinability. Nokuti a heat exchanger chikamu yakashambidzwa mumakloridi, iyo ferrite nhamba yakakosha. Isu takambove nedambudziko rekukukurwa kwecavitation padivi remvura repombi isina tsvina yakakandwa yaive chikamu chekutonhodza loop. Material certs aive akakwana. Ongororo yeMetallurgical yakaratidza kuti ferrite yaive pamucheto wakaderera weiyo inogamuchirika renji, ichiita kuti ingopfava uye inotapukirwa nekuputira mabhuru. Iyo yekutanga yakanga isina kuita chero chakaipa pane yakatarwa, asi chikamu chakakundikana mubasa rayo chairo. Mhinduro yaive yekusimbisa yedu yemukati zvinhu spec uye kushanda neiyo foundry kudzora chemistry zvakanyanya kune iyo application.
Izvi zvinowedzera zvakanyanya nuanced neiyo cobalt-based alloys seStellite yekupfeka-yakatarisana pazvigaro zvevharuvhu mumhepo inopisa kupisa. Kazhinji inoshandiswa seweld overlay. Hunyanzvi haungori mukunama; iri mune inotevera machining eiyo yakaoma zvakanyanya, inodzivirira-inomira pamusoro pasina kukwevera madiki madiki kana delamination. Iwe unoda mamakisi akakodzera ecarbide, kumhanya kwakakodzera uye mafidhi, uye kushivirira kwakawanda. Hunyanzvi hwakafanana nesainzi. Tsananguro kubva Nzvimbo yeQSY tichitaura nezvebasa ravo nema alloys aya zvinoratidza kugona uku. Zvinoreva kuti vakafamba nematambudziko ekugadzira izvi zvakaoma zvinhu post-casting kana welding, inova yakakosha kukosha-yekuwedzera kupfuura kungotsvaga iyo alloy.
Uye ngatitaure nezve plain yekare kabhoni simbi. Kune akawanda asina-corrosive application, ibasa rinoshanda. Asi chikamu chekupisa kupisa hachisi danda rechimiro. The thermal conductivity inokosha. Dzimwe nguva, yakakwira zvishoma kabhoni yemukati inogona kubatsira kune simba, asi inogona zvakare kuita kuti chikamu chiwedzere kushushikana nekupwanya kwecorrosion mune dzimwe nharaunda. Unogara uchienzanisa zviro. Sarudzo haisi simbi chete; ndiyo simbi ipi, kubva painonyungudika, inobatwa nenzira ipi mushure mekukanda. Iyo post-casting kupisa kurapwa- normalizing, annealing, tempering-yakakosha seyese machining nhanho yekumisikidza yekupedzisira zvinhu zvivakwa.
Dhiyabhorosi mune Details: Gaskets, Threads, uye Finishes
Chikamu chikuru chekutadza kwechikamu hachina chekuita nemuviri mukuru. Iri muzvikamu zvekuwedzera. Rwonzi rwepogi yedhiraini rwakabviswa. Kupedzwa kwepamusoro paflange kwakanga kusingaenderane nespiral-ronda gasket, zvichitungamira pakudonha. Iko kucheresa tembiricha sensor homwe haina kubvisirwa mukati, ichigadzira kudzorwa kwekuyerera uye nzvimbo inopisa. Aya ndiwo mashoko anoparadzanisa chikamu chinoshanda kubva kune chakavimbika.
Tora flange yakatarisana. Iyo yakajairwa 125 Ra microinch kupera inogona kudaidzwa kunze. Asi kana gasket iri rakapfava graphite mhando, iyo inogona kunge yakanyanya kushata. Kana iri simbi jekete gasket, inogona kugamuchirwa. Iyo machinist inofanirwa kuziva yekupedzisira kushandiswa kusarudza iyo chaiyo yekuisa uye chiyero chekudyisa kuti uwane kwete nhamba chete, asi inoshanda nzvimbo. Ndakaona maflange aiyera zvakati sandara asi akabvinza nekuti chishandiso chakasiya diki spiral pateni iyo gasket yaisakwanisa kuvharira. Kugadziriswa kwacho kwaive kwekupedzisira, kwakareruka kupfuura ine chaiyo wiper yekuisa kuti igadzire imwe yunifomu yemuchinjikwa-hatch pateni.
Uye shinda. Matambudziko akawanda. Kune masisitimu anodzvanywa, tambo dzakatwasuka dzine O-ring dzinowanzochengeteka pane tapered tambo dzepombi, dzinovimba nesimbi-ku-metal wedging uye shinda sealant. Asi kana iwe uchifanira kushandisa NPT, kudzika uye taper yegomba rakagochwa kwakakosha. Pasi-pombi iyo, uye unoisa panjodzi yekutsemura chikamu kana iyo yekukodzera yakasimbiswa-yakasimbiswa kuti uwane chisimbiso. Kunyanya-ibaya, uye iwe hauna kukwana kubatanidzwa. Tsika yakanaka ndeyekupa aya akakosha mativi ane mafittings akatoiswa uye torqued kuti spec, kana zvirinani, kupa go/no-go geji yemutengi. Inobvisa shanduko huru mumunda.
Kutarisa Pakazara, Kwete Chete Chikamu
Pakupedzisira, a heat exchanger chikamu haipo paga. Kuita kwayo kwakasungirirwa kune zvikamu zvinosangana nazvo. Patinotora purojekiti, kunyanya yekutsiva kana chikamu chekudzorera, tinoedza kuisa maoko edu pachikamu chekubatana kana zvichibvira. Kuyera kubhowa chaiko kwegoko rekuchinjanisa, kupfava kweinopikisa flange. Nekuti dzimwe nguva, iwe unofanirwa kuchina chikamu chako kuti chikwane chokwadi chesisitimu, kwete iyo yakanaka pane yekare, yakapera kudhirowa.
Maonero akazara aya ndiwo anotsanangura nyanzvi. Haisi yekumhanyisa CNC muchina. Ndezvekunzwisisa kuwedzera kwekupisa, simba remvura, nzira dzekuora, uye mechanics egungano. Inyaya yekuziva kuti yakanaka, yakanyatso kukanda kukanda inogona kuparadzwa nekamwe hutsinye machining pass iyo inokonzeresa kusarira kunetseka, iyo inozozviratidza sekukanganisa panguva yekutanga kupisa kutenderera. Chinangwa ndechekuendesa chikamu chinonyangarika muhurongwa - chinongoshanda, kutenderera mushure mekutenderera, pasina dhirama.
Ndicho chigadzirwa chaicho. Kwete chidimbu chesimbi, asi kuvimbika. Zvitoro zvakapfuura nemuma cycles, senge QSY nemakumi emakore avo kugadzira uye kugadzira, vakaisa izvi mukati. Vanogona kunge vaona kutadza, vakagadzirisa, uye vakagadzira raibhurari isingabatike yezvisingaite. Paunenge uchitsvaga chinhu chakakosha, iyo nhoroondo, yambiro yakadzika midzi uye kugadzirisa matambudziko, kazhinji yakakosha kupfuura mutengo wakaderera pachidimbu. Nekuti mutengo wekutadza mumunda-nguva yekuderera, yakarasika kugadzirwa, nyaya dzekuchengetedza-inodarika chikamu chekutanga chinodhura nguva imwe neimwe.
