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jecha rinokanda simbi isina tsvina

Ngatitaurei nezvazvo jecha rinokanda simbi isina tsvina. Vanhu vazhinji vanonzwa simbi isina tsvina uye vanobva vangofunga nemazvo, funga kuisa mari, funga kupedzisa. Kukandwa kwejecha kunoiswa padivi sehama yakakasharara, ine tsvina. Iko kukanganisa. Iyo inonyatso shanda maitiro kune yakakura siyana yezvikamu, asi iwe unofanirwa kuziva mutauro wayo. Iyo gating system dhizaini, kuumbwa kwejecha - kunyanya kune aya alloys - imhuka yakasiyana nekukanda grey iron. Iwe haugone kungodira 304 mune yegreensand mold yakagadzirirwa manhole anovhara uye kutarisira mashiripiti. Iyo fluidity yakasiyana, iyo shrinkage ine hutsinye, uye kana ukawana kutonhora kusiri iko, unenge uchivharira mukushushikana kana zvakanyanya, uchigadzira hombe inopisa misodzi inongoonekwa mushure mekugadzira. Ndakazviona zvichiitika. Mutengi akambosimbirira pane yakakura, yakaoma valve muviri kuburikidza nejecha rakakanda, kupokana nemazano. Zvakaguma nei? Iyo yakanaka-inotaridzika kukanda iyo yakatsemuka pasi peyayo yekupisa kushushikana panguva yekutonhora. Paitaridzika zvakanaka pamusoro, asi chaive chirahwe. Ndicho chinhu chine jecha kukanda tsvina: muganho wekukanganisa mukugadzira maitiro itete.

Maonero Ezvinhu Zvisina Kuenderana

Saka nei kurerekera? Ndinofunga zvinosvika pakupedzisa uye nemazvo. Investment casting, shell molding-inokupa padyo-net-shape zvikamu, dzimwe nguva zvakagadzirira kuungana nebasa shoma. Kukandwa kwejecha kunokupa kushama, kazhinji nemvumo inorema yekupedzisa. Kune akawanda-akakwira-vhoriyamu, madiki masimbi asina tsvina, izvo zvinopambadza. Uri kubhadhara muchina kure zvinhu zvakawanda zvinodhura. Asi uko kukanda kwejecha kunopenya kune imwe-offs, iyo prototypes, yakaderera-vhoriyamu yakakura zvikamu. Funga dzimba dzepombi, turbine casings, ma impellers makuru, kana zvinhu zvekuvaka. Tiri kutaura zvidimbu zvinogona kurema kubva pa50kg kusvika pamatani akati wandei. Kuedza kugadzira 500kg base furemu yemuchina wemaindasitiri kuburikidza nekudyara kwekudyara kunopenga mune zvehupfumi. Jecha ndiyo chete nzira inoshanda.

Chinokosha kutonga zvinotarisirwa. Iyo yepamusoro inenge iine iyo character gritty texture. Dimensional tolerances yakakura, funga ± 2mm pane 500mm dimension segwara rakakasharara, zvichienderana nehunyanzvi hwemugadziri. Uri kugadzirira kushanda kwekutanga, kwete aesthetics. Uye iwe unofanirwa, unofanirwa, kubatanidza yekutanga yekutanga. Iyo pateni dhizaini ndeye zvese. Draft angles, shrinkage allowances-ye-stainless, isu tinowanzo shandisa mutemo wemugadziri we 2.1% kusvika 2.4%, asi unosiyana negiredhi. A 316L ichaita zvakasiyana kubva kuCF8M (iyo yakakandwa yakaenzana) panguva yekusimba. Kana iwe ukatumira yapera CAD modhi kuchitoro woti gadzira izvi, pasina kubvunzana kwemaitiro, urikubvunza dambudziko.

Apa ndipo apo ruzivo kubva muchitoro chakabata maitiro akasiyana-siyana zvakakosha. Tora kambani yakafanana Qingdao Qiangsenyuan Technology Co., Ltd. (QSY). Unogona kuwana basa ravo pa https://www.tsingtaocnc.com. Neanopfuura makore makumi matatu ekukandira nekugadzira, vakazviona zvese-shell mold, investimendi, uye hongu, kukanda jecha pazvinhu. Kuti ruzivo rwakasiyana-siyana rwakakosha. Vaisazongotarisa simbi isina tsvina voimanikidza kuita mold yejecha. Vaizoongorora geometry, kutendeseka kunodiwa, vhoriyamu, uye vokurudzira maitiro ehunyanzvi uye ehupfumi. Dzimwe nguva mhinduro ndeyejecha kukanda chimiro chakakasharara vobva vakwirisa yavo-mumba CNC machining kurova kushivirira kwakasimba pamabore akakomba kana zviso. Iyo yakabatanidzwa nzira ndiyo maitiro aunoita jecha rinokanda simbi isina tsvina shanda zvakavimbika.

Iyo Nitty-Gritty: Gating, Kudyisa, uye Jecha Iro

Zvakanaka, ngatipindei mumasora. Kudurura zvisina tsvina, kunyanya mamakisi e austenitic se304/316, hazvina kufanana nekudira kabhoni simbi. Ipfupi-mvura shoma. Inosimbisa nekukurumidza pamusoro pehuwandu, ichiita mushy zone. Izvi zvinoita kuti ive nyore kuita shrinkage porosity kana isina kudyiswa nemazvo. Dhizaini yako yekusimudza ndiyo yakakosha. Dzinofanirwa kuve dzakakura, dzakaiswa zvine hungwaru, uye kugara dzichipisa kupfuura zvaungajaira. Chills ishamwari yako kumanikidzira kwakananga kusimba. Tinowanzo shandisa iron kana copper inotonhora yakaiswa panzvimbo dzakakora kuburitsa kupisa nekukasira, zvichiita kuti simbi iome yakananga kunosimudzwa.

Ipapo kune jecha. Silika jecha rakajairika, asi kune isina tsvina, iwe unowanzo kuona zircon kana chromite jecha rinoshandiswa mune yakatarisana layer. Sei? Higher thermal conductivity. Inokwevera kupisa kubva musimbi nekukurumidza, ichisimudzira chimiro chezviyo chakatsetseka uye yakaoma, yakaomesesa pamusoro pekukanda. Inodhura, asi kune zvikamu zvakakosha, hazvigone kutaurirana. Iyo binder system ine basa zvakare. Makemikari-akasungwa jecha (sefuran kana phenolic urethane) akajairika kune asina tsvina. Ivo vanokupa iwe yakasimba mold, nani dimensional kugadzikana, uye iwe unogona kugadzira mamwe akaomarara macores. Greensand inogona kushandiswa kuita maumbirwo akareruka, asi hurema hunoenderana nehunyoro semakomba egasi kana mabhomba injodzi chaiyo ine tembiricha yekudurura yakakwirira (yakatenderedza °C ye304).

Musoro wemusoro unoshanda? Kusvirwa. Apo simbi yakanyungudutswa inobatana zvishoma netsanga dzejecha pamusoro. Chinhu chinotyisa kubvisa, kazhinji chinoda kugaya zvine hasha kana kuputika kwepfuti, izvo zvinogona kushanda-kuomesa pamusoro. Kazhinji chiratidzo chekusagadzirira kwejecha kana kuti jecha risiri iro/binder combo. Iwe unodzidza kuona mamiriro ezvinhu anoikonzera-jecha rakanyanyisa, kusabuda zvakakwana, tembiricha yesimbi yakakwira zvakanyanya. Ndiyo imwe yeaya emhando nyaya inoparadzanisa yakanaka foundry kubva kune yakanaka.

Post-Casting: Basa Rechokwadi Rinowanzotanga

Hechino chimwe chechokwadi chekuongorora. Kana kukanda kuchibuda mukuzunza, basa rako rinogona kunge raitwa nehafu. Munofanira kugura masuwo nezvikwiriso, izvo pazvisina tsvina zvakaoma. Plasma arc kana abrasive yekucheka ndiyo yakajairwa. Zvadaro pane kupisa kupisa. Zvizhinji zvejecha-cast stainless components zvinoda mushonga we annealing treatment. Izvi zvinosanganisira kudziyisa kusvika kutenderedza °C, kubata, uye nekudzima nekukasira mumvura kana mumhepo. Izvi zvinonyungudutsa chero chromium carbides yakaumbwa panguva inononoka kutonhora muforoma (izvo zvinogona kutungamira mukunzwa uye nekuora nyaya) uye inobvisa kushushikana kwemukati. Kusvetuka danho iri imhosva yakajairika, ine njodzi kune zvikamu zvakagadzirirwa sevhisi yekuora.

Mushure mekupisa kurapwa, iwe unowanzoona kukanganisa. The casting warps. Inenge yakavimbiswa. Ndosaka uchisiya iyo generous machining allowance. Apa ndipo apo kudyidzana nechitoro chemuchina kwakakosha. Kambani inoita zvese kukanda uye kugadzira, seQSY, ine mukana wakakura. Ivo vanoziva kuti chikamu chinogona kufamba sei kubva mukupisa kupisa, ivo vanoziva kwekusiya yakawedzera stock, uye vanogona kuigadzirisa nemazvo pakugadzira. Kuedza kutora jecha rakamonyoroka kuti ugare muCNC vise pane isina hukama muchina chitoro iresiphi yezvakaraswa zvikamu uye nharo.

NDT imwe nhanho yakakosha, uye kazhinji isingatarisirwi. Kune zvikamu zvine zvinomanikidza, radiographic test (RT) kana ultrasonic test (UT) inotsanangurwa. Asi kune akawanda akajairwa maindasitiri zvikamu, yakanaka dhayi penetrant bvunzo (PT) ndiyo isina hushoma yekutarisa kutsemuka kwepasi kana porosity. Magedhi nenzvimbo dzekusimudza pombi idzo nzvimbo dzekutanga crack. Iwe unozvikuya iwo flush, ipapo PT. Handikwanise kuverenga kuti kangani kukanda kunoratidzika kunge kwakakwana kwakaratidza kutsemuka kwebvudzi pamutsipa unosimudza mushure mePT. Idanho rinodikanwa, rinozvininipisa.

Nguva Yekuisarudza: Muti wePragmatic Sarudzo

Saka, iwe unodhonza rinhi mutsara pajecha rekukanda kuti rive risina tsvina? Ngativei pragmatic. Kutanga, ukuru uye uremu. Kana iri pamusoro pe100kg uye huwandu hwakaderera (tingati, pasi pezvidimbu makumi mashanu), kukanda jecha kune mukwikwidzi wepamusoro. Chechipiri, geometry. Yakavhurika here? Unogona kudhonza patani kubva mairi pasina miriyoni yakaoma, isina kusimba macores? Mavara emukati akaomesesa anogona kukusundidzira kugomba kana kudyara, kunyangwe chikamu chikuru. Chechitatu, chii chiri kutsoropodza? Iyo ibhollard yekushongedza kana ye-high-pressure valve body? Iwo emhando yekudzora, rudzi rwejecha, uye NDT nhanho ichasiyana zvisingaite, zvichikanganisa mutengo.

Chechina, uye izvi zvakakura: nguva yekutungamira uye mutengo wepateni. Kune imwe-kure, kuvaka yakazara yehuni kana urethane pattern inodhura uye inotora nguva. Apa ndipo panouya maitiro echizvino-zvino senge 3D yakadhindwa mold yejecha. Unonzvenga patani zvachose. Dhinda mold uye musimboti zvakananga kubva kuCAD. Zviri mutambo-chinja nokuda prototypes uye yakaoma mumwe-offs. Mari yeyuniti yakakwira, asi mutengo wekuseta uye nguva zvakaderedzwa. Ini ndinofungidzira kumberi-kufunga mavambo ari kubatanidza izvi. Chitoro chine maonero akafara eindastiri, seQSY, inobata nenzira dzakasiyana siyana dzekukanda uye CNC, yakamira zvakanaka kupa zano rekuti kugadzira maitiro echinyakare kana kudhinda kwakananga kune musoro kune yakapihwa. jecha rinokanda simbi isina tsvina project.

Pakupedzisira, funga kukosha kweketani yose. Uri kungotenga yekukandira, kana iwe unoda chakapedzwa, chakagadzirwa chikamu? Kana iri iyo yekupedzisira, kutsvaga kubva kune mumwe chete mutengesi anodzora kukanda, kupisa kurapwa, uye machining kunoderedza kutemwa nemusoro, kunaka-kunongedza zvigunwe, uye kazhinji mutengo wakakwana. Iko kubatanidzwa kwemasevhisi mukana wakakura mukugadzira jecha rakakandwa zvinhu zvisina tsvina zvinogoneka kune yekupedzisira-kushandisa maapplication, kwete kungo rough blanks.

Mafungiro Ekupedzisira: Icho Chishandiso, Kwete Chekutanga

Tarisa, jecha rinokanda simbi isina tsvina haina kunaka. Izvo hazvikupi iwe girazi kupera kwekurasika-wax kukanda. Zvinoda kuremekedzwa kwemaitiro, kubatana kwakadzama pakati pemugadziri uye muvambi, uye kunzwisisa kuti yakawanda yechikamu chekupedzisira mutengo uye mhando ichatemerwa mumachining uye kupedza matanho. Iyo yekutanga kugadzira maitiro, yakanakira kugadzira inorema, dhizaini mapfupa emidziyo.

Iko kunotora hakufanirwe kunge kuri kunzvenga, asi kubata nayo nehungwaru. Batanidza nevatambi vane ruzivo rwakaratidza nealloy, bvunza kuti uone basa rakafanana, unzwisise kugona kwavo mukugadzira gating uye jecha masisitimu. Uye funga zvakanyanya vatengesi vanopa yakatwasuka yakabatanidzwa nzira kubva kuforoma kusvika yapera chikamu. Iyo inobvisa-njodzi purojekiti zvakanyanya. Mukushandisa kwakaringana, neakakodzera maitiro ekutonga, jecha-cast stainless chikamu chakasimba zvinoshamisa uye chinodhura-chinoshanda. Zviri pamusoro pekusarudza chishandiso chakakodzera chebasa racho, kwete kumanikidza chikamu chese chisina tsvina kuti chive chepamusoro-chaiyo-uye inodhura-muvhu.

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