Ko muchina wekukanda wevacuum ingot unogadzira sei “zvakakwana” ingots dzegoridhe nesirivheri?

Ndarama nesirivheri zvave zviri zviratidzo zveupfumi, kuchengetedza ukoshi uye umbozha kubva kare. Kubva kune ekare egoridhe ingots kusvika kumazuva ano ekudyara goridhe mabara, vanhu havana kumbomira kuvatevera. Asi wakambofunga here nezve musiyano uripo pakati pezvakagadzirwa zvepamusoro-giredhi rekudyara goridhe bar uye zvakajairika goridhe zvishongo? Mhinduro iri mu "kuchena" uye "kutendeseka". Kiyi yekuwana kuchena kwekupedzisira ndeye yepamusoro-tech mudziyo unonzi " vacuum ingot casting muchina ". Icho chiri kuvandudza chinyararire nzira yekugadzira yesimbi dzakakosha uye kukanda chizvarwa chitsva chenhaka.

1.Sei kukanda goridhe nesirivha kuchidawo "vacuum" nharaunda?

Traditional hora kukanda kunoratidzika kunge kwakatwasuka, asi inovanza matambudziko mazhinji. Nzvimbo yevacuum yakaunza shanduko yekuvandudza mukukanda goridhe nesirivha:

(1) Bvisa zvachose pores uye shrinkage cavities

Dambudziko rechinyakare: Goridhe yakanyungudutswa nesirivheri zvinotora huwandu hukuru hwehaidhirojeni neokisijeni kubva mumhepo. Kana simbi yakanyungudutswa ichitonhora muforoma, magasi aya anonaya, ogadzira pores nemabubbles anooneka neziso rakashama kana kuvigwa mukati. Izvi hazvisi kungokanganisa chitarisiko chete, asiwo zvinoderedza kuwanda uye inova nzvimbo isina simba muchimiro. Vacuum solution: Munzvimbo yevacuum, gasi riri musimbi yakanyungudutswa rinonyatso kutorwa, uye ingot inova dense uye yunifomu mushure mekutonhora, ichibvisa chero pores uye nekuona kukwana kwechimiro chayo chemuviri.

(2) Wana kukanda-isina okisijeni kubvisa oxidation uye kurasikirwa

Dambudziko rechinyakare: Sirivha inonyungudika zviri nyore kana yanyungudutswa mumhepo, ichiita dema sirivheri oxide pamusoro, zvichikonzera kurasikirwa uye kugomara kweruvara. Kunyange goridhe rakatsiga rinogona kuita zvishoma neokisijeni pakupisa kwakanyanya.

Vacuum solution: Iyo vacuum nharaunda inonyima mweya weokisijeni, ichiona kuti goridhe nesirivha zviri mu "ultra-clean" panguva yese iyi kubva pakunyunguduka kusvika pakuoma. Kumusoro kweingot kwakatsetseka segirazi, uye kupenya kunopenya kwesimbi pachayo kunogona kuratidzwa pasina kugadzirisa kwakaoma. Silver ingots inogona kunyanya kuratidza isingaenzaniswi inopenya yakajeka mavara.

(3) Iva nechokwadi chekururama kwakakwana uye kufanana kwekuumbwa

Dambudziko rechinyakare: Paunenge uchikanda K goridhe kana chaiwo alloys (senge goridhe nesirivha alloys), kupiswa kwezvimwe zvinhu zviri nyore oxidized (senge zinc nemhangura) zvinotungamira mukutsauka kwekuumbwa, zvichikanganisa ruvara nekuoma.

Vacuum solution: Vacuum kunyunguduka kunonyatso kudzora kushanduka kwezvinhu, kuve nechokwadi chekuti kunaka kweingot yega yega kwakaringana, izvo zvakakosha pakudyara-giredhi simbi dzakakosha, uko kunaka kunofanirwa kunyatso vimbiswa.

(4) Inopa husingaenzaniswi pamusoro pemhando

Nekuti hapana maokisi kana slag, pamusoro pevacuum-cast goridhe nesirivheri ingots yakanyanya kutsvedzerera, ine mavara akajeka uye yakakosha "mirror effect". Izvi zvinoderedza zvakanyanya kunotevera kukwenenzverwa nekugadzirisa matanho, uye kana yakananga kudhinda mapatani uye zvinyorwa, kujeka uye runako zvakakwirira zvakanyanya kune echinyakare ingots.

2. Iyo Yechokwadi Maitiro ekukanda Goridhe neSilver Ingots Uchishandisa Vacuum Ingot Caster

Iyo vacuum ingot yekukanda muchina inogadzira yakasarudzika "nzvimbo yekuzvarwa" yakagadzirirwa simbi dzinokosha:

Danho Rokutanga: Kunyatsogadzirira Mashoko

Inokodzera goridhe rakachena / sirivha zvigadzirwa kana akaumbwa alloys anoiswa mumvura-yakatonhorera copper crucible (yakaenzana neforoma) mukati mechoto.

Danho 2: Kugadzira Vacuum

Vhara gonhi rechoto uye tanga vacuum pombi kukurumidza kubvisa mweya kubva mukamuri rechoto, uchigadzira mhepo inenge isina oxygen, yakachena.

Danho rechitatu: Precision Melting

Tanga vacuum induction kunyunguduka. Yakakwira-frequency induction coils inoburitsa hombe eddy mafungu mukati mesimbi, zvichiita kuti inyunguduke nekukurumidza uye zvakaenzana. Maitiro ese akafanana nekudziya ne "simba risingaoneki," kubvisa chero kusvibiswa kwekunze.

Nhanho 4: Kukanda uye Kubatanidza

Mushure mokunge kunyunguduka kwapera, choto chinogona kunyungudutswa kana kunyunguduka kunogona kudururirwa mumushonga wakagara wakagadzirirwa. Pasi pevacuum inopfuurira, iyo inonyunguduka inotonhora zvishoma nezvishoma uye inosimbisa nzira.

Nhanho yechishanu: Yakakwana Kunze kweChivi

Mushure mekunge kutonhora kwapera, choto chinozadzwa negasi inert (yakadai seargon) kuti idzokere kune yakajairwa kumanikidza. Vhura gonhi rechoto, uye ingot yegoridhe kana sirivheri ine inopenya simbi inopenya uye dense, yunifomu chimiro chinozvarwa.

3. Kukosha kweVacuum-Cast Gold neSilver Ingots: Ndiani Anodzida?

Ndarama nesirivheri ingots inokandwa uchishandisa iyi yekucheka-kumucheto process inoshandira zvikamu zvinoda zvakanyanya mumhando:

Minti yenyika uye yekunatsa yepamusoro: Inoshandiswa sezvivharo zvegoridhe nesirivheri mari inounganirwa (yakadai semari yePanda neEagle Dollar mari), pamwe nepamusoro-soro yekudyara goridhe nesirivha mabara. Hunhu hwavo husina mhosva ivimbiso yekuvimbika uye kukosha.

Zvishongo zvepamusoro-soro uye mhando dzemhando yepamusoro: Inoshandiswa seyakagadzirwa zvishongo zvakanaka uye makesi ewachi eumbozha nemabhurekete. Ingots dzakakwana dzinoderedza kukanganiswa kwekugadzirisa uye kuve nechokwadi chemhando yepamusoro yechigadzirwa chekupedzisira.

Masangano ezvemari uye vane mari yepamusoro-soro: Vacuum-cast ingots inomiririra "mhando yepamusoro" yesimbi dzinokosha, inopa kutendeseka kwepamusoro uye kushaya mari, zvichiita kuti zvive zvakakosha pakugoverwa kweasset.

Maindasitiri uye tekinoroji minda: Inoshandiswa mune akakosha mamiriro anoda kuchena kwepamusoro, kuvimbika kwegoridhe uye sirivheri zvinhu, semiconductor bonding waya, precision electronic contacts, nezvimwe.

4. Mhedziso: Kwete teknolojia chete, asiwo kuzvipira

Kushandiswa kwemashini ekukanda vacuum muindasitiri yesimbi dzakakosha kwagara kuchipfuura tekinoroji. Vanomiririra kutsvaga kwekupedzisira kwekuchena, kuzvipira kwakadzama kukoshesa, uye kufunga kwakadzama kwenhaka.

Kana uchinge wakabata bhara regoridhe kana mari yesirivha inogadzirwa uchishandisa vacuum casting tekinoroji, haunzwi chete huremu hwesimbi yakakosha asiwo kukwana uye kuvimba uko tekinoroji yemazuva ano yakapinza mupfuma yemireniyamu iyi. Inogadzira hwaro hwekuvimba huchagara zvechokwadi kuzvizvarwa zvichauya.

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