Tsananguro yekushanda kwemuchina weCryogenic Deflashing Machine

By Mike Chen, Mutungamiriri weKugadzira | Makore gumi nemaviri+ muKugadzira Rabha |LinkedIn

Zvinhu Zvinokosha Zvaunofanira Kuziva

• Muchina wekubvisa madonhwe emvura unobatsira kubvisa madonhwe emvura nekuaomesa nenitrogen yemvura kusvika yaoma, wobva wapwanya madonhwe acho nekupwanyika mukati memuchina unotenderera.
• Maitiro acho anoshanda nekuti shinda diki inotonhorera uye inoputika nekukurumidza kupfuura chikamu chakakora, saka shinda yacho inoputika chikamu chichiripo.
• Maparamita matatu anodzora mhedzisiro: tembiricha yekushanda (kusvika −150°C), kumhanya kweroller (20–70 RPM), uye nguva yekutenderera (pasi pemaminitsi masere).
• Iyi ipfungwa yepanyama, isingabatanidzi chinhu, inobvisa flash yakanaka kwazvo pasina kucheka maturusi, ndosaka ichisvika padanho rekupasa rinodarika 98% pazvikamu zvine hungwaru.

Mhinduro pfupi: Muchina wekubvisa mabara unonzi cryogenic deflashing unobvisa mabara nemaburrs nekushandisa shanduko yemaitiro echinhu patembiricha yakaderera. Unoomesa zvikamu ne liquid nitrogen kusvika mabara matete aoma uye apwanyika, wobva wazvikanda mu roller inotenderera kuitira kuti kupwanya mabara kuparadze kubva pachikamu chichiri ductile. Inzira yepanyama, isingabatanidzi: hapana maburi, hapana ma abrasives, hapana kunhonga nemaoko.

Nzira zhinji dzekupedzisa dzinocheka, kupwanya, kana kukwesha zvinhu. Cryogenic deflashing inoita chimwe chinhu chakasiyana: inochinja zvinhu pachayo, zvichiita kuti flash isingadiwe ive nyore kupwanya pane chigadzirwa chayakabatanidzwa nacho. Pfungwa yacho inonzwika sefizikisi pane kugadzira, uye ndizvo chaizvo zvazviri.

Gwaro iri rinotsanangura sainzi iri shure kwemaitiro acho, rinotsanangura nzira yekufamba kwemuchina nhanho nhanho, rinoparura zvikamu zvakakosha uye ma parameter, uye rinojekesa kuti nei flash ichipwanyika uku chikamu chichiripo. Kana wakambozvibvunza kuti muchina unogona sei kubvisa chikamu chisina kubata chikamu, iyi ndiyo mhinduro.

Chii Chinonzi Cryogenic Deflashing?

Kubvisa mabara e cryogenic inzira yekupedzisa inobvisa mabara e flash, burrs, uye parting-line excess kubva muzvikamu zvakaumbwa nekudzitonhodza kusvika pakupisa kwe cryogenic kuitira kuti zvinhu zvakatetepa zviputike, wobva washandisa mechanical impact kubvisa mabara e brittle flash.Izwi rekuti "cryogenic" rinoreva kushandiswa kwekupisa kwakaderera zvikuru, kunowanzo endeswa ne nitrogen yemvura.

Kusiyana nekushandisa michina yekubvisa tsvina, iyo inoshandisa bharero rinotenderera uye kazhinji inocheka kana kukuya, kushandisa cryogenic deflashing kunoshandisa cold sechishandiso chikuru.Nekuti maitiro acho haadzvanyiriri banga pachikamu chacho, anobvisa kupenya kubva muzvikamu zvidiki, mipendero yemukati, uye maumbirwo akaomarara ayo mudziyo wekucheka usingakwanise kusvika.Ndosaka yava ndiyo nzira inoshandiswa pakusimbisa zvisimbiso, zvikamu zvidiki zvemuchadenga, uye zvikamu zvemagetsi.

Fizikisi Iri Kuseri Kwemaitiro

Nzira yese iri pachinhu chimwe chete: tembiricha yekuchinja kwegirazi, kana Tg.Pamusoro peTg yayo, rabha inogadzirwa yakapfava uye inonamira; pasi payo, chinhu chimwe chete chinova chakaoma, chegirazi, uye chinopwanyika.Tg chaiyo inosiyana zvichienderana nechinhu chakagadzirwa—rabha yechisikigo uye zvinhu zvakawanda zvakagadzirwa zvinopwanyika kana tembiricha iri pasi pe0°C, nepo silicone ichiramba ichichinjika kana tembiricha yatonhora—asi musimboti wacho unoshanda kune ese ma elastomers.

Heino pfungwa huru inoita kuti maitiro acho asarudze.Flash yacho yakatetepa uye yakareruka, saka haina kupisa kwakanyanya uye inotonhora kusvika pasi peTg yayo kanenge kamwe chete kana yaiswa munitrogen yemvura.Muviri wechikamu chikuru wakakora uye unorema, saka unochengeta kupisa kwakawanda uye unogara pamusoro penzvimbo yawo yekupwanyika kwenguva yakareba. Munguva pfupi iyo zvikamu zvinopedza zviri muroller, flash inopwanyika ukuwo chikamu chinoramba chakapfava zvakakwana kuti chirarame mushure mekupwanyika kunotevera.

Nitrogen yemvura ndiyo inokonzeresa chando nekuti inotonhora zvikuru—inofashaira pa--196°C—uye isingadhuri. Muchina unoipinza kuti ideredze kamuri rinotenderera kusvika patembiricha yaro yekushanda ye--150°C, tembiricha yakaderera zvakakwana kuti ikurumidze kupenya uku ichisiya hwindo remushandisi richigona kudzorwa.

Mashandiro Emuchina, Nhanho Nenhanho

Kutenderera kwemuchina kuri nyore kushandisa asi zvinoenderana nenguva chaiyo uye tembiricha. Heino kurongeka kuri mukati memuchina wekubvisa mvura unonzi cryogenic deflashing:

1. Isa bhachi.Zvikamu zvinoiswa mukamuri rinotenderera, rinokwana kusvika ku80 L—anenge 15–20 kg yechigadzirwa zvichienderana nekuwanda kwezvikamu.
2. Tonhodza kamuri.Nitrogen yemvura inopinzwa kuti idonhedze tembiricha yeroller kusvika painoshanda −150°C. Kugona kwe1.1 kW kwakayerwa mufiriji kunobatsira kuchengetedza tembiricha yakagadzikana panguva yekufamba kwemhepo.
3. Batisisa flash.Chiedza chinotonhora kupfuura tembiricha yekuchinja kwegirazi uye chinoshanduka kuva chakaomarara, nepo chikamu chakakora chinoramba chakapfava.
4. Kudonha nekupwanyika.Chinotenderera chinotenderera pa20–70 RPM, chichidonha zvikamu zvekuti zvinogumburana pamwe chete nedhiramu. Simba rekurova rinobvisa brittle flash pamutsetse wekuparadzanisa.
5. Bata nguva yekutenderera.Kutenderera kwacho kwese kunoitika mumaminitsi asingasviki masere—kureba zvakakwana kubvisa flash, kupfupi zvakakwana kudzivirira chikamu kuti chisatonhore kusvika pakukuvara.
6. Bvisa zvinhu wozviparadzanisa.Zvikamu zvakabviswa tsvina zvinobuda pamwe chete nezvimedu zvakapwanyika, izvo zvinozoparadzaniswa kubva pane zvakagadzirwa.

Cherechedzai zvisipo: hapana banga, hapana chinhu chinogumbura, uye hapana munhu ari kupinza jira racho.Nekuti simba rekubvisa rinoshandiswa nezvikamu pachazvo zvichidonha, muchina uyu unocheka nzvimbo yega yega zvakaenzana, kusanganisira kucheka pasi uye mipendero yemukati.

Zvikamu Zvikuru Nemabasa Azvo

Chikamu chimwe nechimwe chiri mumuchina wekubvisa tsvina unoshandiswa pakugadzira zvinhu (cryogenic deflashing machine) chinoenderana nedanho rimwe chete remutemo uyu. Kunzwisisa mabasa acho kunoita kuti zvive nyore kugadzirisa nekugadzirisa matambudziko.

Magadzirirwo kubva kumuchina wekuchenesa mvura une nitrogen cryogenicpeji rechigadzirwa.

Kureba kwemuchina uyu—kureba 1200 mm nehupamhi 2000 mm nekukwirira 1200 mm, uchirema 200 kg—zvinoreva kuti nhungamiro yese inokodzera mukona diki inoshamisa yekamuri rekupedzisa.

Nei Kuputika Kwechiedza Kuchibuda Uye Chikamu Chichipona

Kusarudzwa kwe cryogenic deflashing ndiko kunoita kuti ivimbwe nekushanda kwayo nemazvo, uye zvakakodzera kunzwisiswa zvakadzama nekuti ndiyo inodzivirira kuti chikamu pamwe chete ne flash zvisaparadzwe.

Kupfava kunofamba nepakati pezvinhu nekufamba kwenguva, uye zvikamu zvitete zvinosvika pakupfava zvisati zvaita zvikamu zvikobvu.Flash, iyo inowanzova neukobvu hwe milimita imwe chete, inotonhora nepakati peTg yayo nekukasika. Chikamu chemuviri, chakakora zvakapetwa kakawanda, chinotonhora zvishoma nezvishoma kubva pamusoro uchienda mukati. Munguva pfupi, flash yacho inenge yakabatana zvizere nepo mukati mechikamu—uye kazhinji pamusoro pacho—inoramba yakapfava zvakakwana kuti ikwanise kunyudza kudonha kwesimba pasina kutsemuka.

Ndosaka nguva yekutenderera ichikosha zvikuru.Kana wapedza nguva yakareba, chikamu chacho chinotonhora pasi peTg yacho uye chinotanga kupwanyika, ipapo kupwanyika kunobvisa flash kunotanga kupwanya chigadzirwa.Ishandise kwenguva pfupi uye flash haisati yaoma, saka inotambanuka panzvimbo pekuti ibve. Nguva yekumhanya iri pasi pemaminitsi masere yakagadzirirwa kugara pakati pematambudziko maviri aya.

Maparamita eKutenderera uye Zvaanodzora

Madhayi matatu—tembiricha, kumhanya, nenguva—ndiwo anosarudza kana nzira yacho ichibvisa flash zvakanaka kana kuti ichikuvadza zvikamu. Zvigadzirise pamwe chete, kwete zviri zvega.

Magadzirirwo akakodzera anoenderana ne compound Tg, ukobvu hwechikamu, uye flash geometry. Kugadzirisa zvinhu zvakanaka ibasa rinoitwa pachikamu chimwe nechimwe, kwete rinoitwa kamwe chete.

Nekuti tembiricha chaiyo yekusasimba kweganda inosiyana zvichienderana nechinhu chimwe chete, seti yeparameter yakakodzera yakasiyana kune rabha yechisikigo, NBR, FKM, uye silicone.Maitiro ekupfava kwerabha pachayo chiyero chakajairwa—ASTM D2137 neISO 812 zvinotsanangura nzira dzekuziva pokupfava kwerabha—inova nzira inobatsira pakusarudza tembiricha yechigadzirwa chitsva.

Zvinhu Zvakakodzera Cryogenic Deflashing

Maitiro acho anoshanda chero kupi uko flash inogona kuitwa kuti iome kupfuura chikamu chacho.Ndiyo nzira inosarudzwa pakugadzira rabha nemapurasitiki, uye inobatawo zvinhu zvakasiyana-siyana zvesimbi.

Mashandisirwo akajairika anosanganisira zvikamu zverabha zvakaoma, zvikamu zvidiki zvemuchadenga, zvikamu zverabha zvemotokari, rabha yakagadzirwa zvakanaka, zvikamu zvepurasitiki chaiyo, zvikamu zvema microelectronic, zvikamu zvemagetsi zvakaoma, uye zinc, magnesium, kana aluminium die castings, pamwe nezvisimbiso zve precision. Pazvikamu izvi, musimboti wekusabatana ndiwo musimboti: unobvisa flash isingasvike nebanga uye unosiya pamusoro usina kubatwa.

Kuti zvive nyore kushandisa O-ring kana kuti silicone uko kuputsika kwakaoma, dzimwe nzira dzinogona kukodzera zviri nani.muchina wekubvisa rabhainosanganisira dzimwe nzira dzemagetsi nedzemhepo dzisingashandise nitrogen yemvura zvachose.

Matambudziko Akajairika uye Maitiro Ekugadzirisa

Kubvisa tsvina kubva mumagetsi (cryogenic deflashing) inzira yekugadzirisa zvinhu. Matambudziko mazhinji anogadziriswa nekugadzirisa tembiricha, kumhanya, kana nguva—kwete nekutsiva zvikamu.

Mhedziso: Kuchenesa Nekupisa, Kwete Nechishandiso

Pfungwa yekushanda kwemuchina we cryogenic deflashing ine runako mukureruka kwawo: kuomesa flash kusvika yave kugomara, wobva warega kupwanya flash kubva pachikamu chichiri kudhonzwa. Hapana banga, hapana kukwenya, hapana ruoko. Fizikisi inoita zvisingagoneke nemuchina wekucheka - kusvika pamativi madiki uye mukati mekunze uye kubvisa flash zvakaenzana pasina kubata pamusoro.

Maitiro acho anosarudza nekuti anotsamira pakupisa: kupenya kwakatetepa kunoputika chikamu chakakora chisati chaita, uye hwindo rekufamba kwenguva pfupi rinochengetedza chikamu chacho chakachengeteka. Tembiricha, kumhanya kwemuchina wekutenderera, uye nguva yekutenderera ndizvo zvinhu zvitatu zvinochengetedza maitiro acho mukati mehwindo iroro.

Pazvinhu zvakagadzirwa nerabha, purasitiki, uye zvakaumbwa nesimbi, ndiwo musiyano uripo pakati pekupedzisa kunocheka chigadzirwa nekupedzisa kunocheka flash. Kana wangonzwisisa musimboti wacho, muchina wacho unomira kutaridzika sebhokisi rinotonhora wotanga kutaridzika senzira inodzokororwa, inodzokororwa—iyo yaunogona kugadzirisa, kuyera, uye kuvimba nayo.