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Mokhoa oa ho Fokotsa Sekhahla sa Likhechana ho Casting e Phahameng ea Khatello ea Aluminium Alloy
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Mokhoa oa ho Fokotsa Sekhahla sa Likhechana ho Casting e Phahameng ea Khatello ea Aluminium Alloy

2025-11-21

Mokhoa oa ho Fokotsa Sekhahla sa Likhechana ka Aluminium Alloy High-Khatello ea ho Lahla

I. Selelekela: Sekhahla sa Litšenyehelo, "Bomo ea Litšenyehelo e Patiloeng" bakeng sa Bareki ba Lefatše

Jwalo ka moreki wa lefatshe ka bophara wa ho lahla khatello e phahameng ea aluminium motsoako, na hangata o tobana le mathata ana:

10%-20% ea thepa e amohetsoeng e lahloa ka lebaka la liphoso tse kang masoba, masoba a ho fokotseha le mapetso, e leng se eketsang ka ho toba litšenyehelo tsa theko;
Ho lokisa thepa e lahliloeng ho lebisa tiehong ea ho tlisa thepa, ho haella ha linako tsa ho tlisa thepa tse latelang;
Bafepedi ba fetisa ka tsela e sa tobang litšenyehelo tsa lithōle, ba qotsa litheko tse phahameng tseo ho leng thata ho li netefatsa;
Ho qhala thepa ka bongata ho baka tšitiso ea ketane ea phepelo, e amang sebopeho sa 'maraka oa ho qetela.

Sekhahla sa masalla a alloy alloy alloy alloy alloy (karolelano ea indasteri ke 3%-15%), e bonahalang e le bothata ba tlhahiso ea mofani, ha e le hantle e etsa qeto ka ho toba ea phaello ea moreki le tlholisano ea 'maraka. Sengoloa sena se tla nka pono ea moreki 'me se u rute mokhoa oa ho fokotsa sekhahla sa masalla ka mokhoa o hlophisehileng ho tloha mohloling ho ea qetellong ka "ho khetha bafepedi ba nepahetseng, ho laola ts'ebetso, le ho haha ​​​​mekhoa e matla," ho fihlela boemo ba ho hapa bohle.

tshebediso-ya-aluminium-alloy-die-casting-in-medical-field.jpg

II. Tekanyo ea Pele ea Bohlokoa: Ho Khetha Mofani ea Nepahetseng – Ho Netefatsa Taolo e Tiileng ea Likotsi Mohloling

Sekgahla sa dikgwerekgwere ha e le hantle ke pontsho ya matla a mofani ka kakaretso. Ha ba kgetha balekane, bareki ba hloka ho fetela ka nqane ho papiso ya ditheko mme ba tsepamise maikutlo hodima matshwao a mane a bohlokwa a latelang ho fokotsa dikotsi tse phahameng tsa dikgwerekgwere ho tloha qalong:

1. Netefatsa "lisetifikeiti tsa matla a thata" tsa mofani:
* Setifikeiti sa sistimi ea boleng: Beha bafepedi ba netefalitsoeng ke ISO 9001 (litlhoko tsa motheo) le IATF 16949 (maemo a hlokang tlhokomelo e phahameng joalo ka indasteri ea likoloi). Litifikeiti tsena li emela lits'ebetso tse tloaelehileng tsa taolo ea tlhahiso, tse etsang hore litefiso tsa lithōle li laolehe habonolo.
* Boemo ba lisebelisoa le ts'ebetso: Ho hlokahala hore bafepedi ba fane ka lethathamo la mehlala ea mechini ea ho lahla ka tšohanyetso (mohlala, lisebelisoa tse nepahetseng haholo tse nang le matla a ho thiba ≥2000T) le lisebelisoa tsa ho sebetsana le hlobo (litsi tsa machining tsa CNC, mechini ea ho lekanya e hokahanyang). Lisebelisoa tse tsoetseng pele li fokotsa liphoso tsa batho; mohlala, hlobo e nepahetseng haholo e ka fokotsa masalla a bakoang ke ho kheloha ha litekanyo tsa ho lahla.
* Sehlopha sa boenjiniere le mehloli ea botekgeniki: Tsepamisa maikutlo ho hore na mofani oa thepa o na le lihlahisoa tsa profeshenale.Mokhoa oa ho Lahla baenjiniere le sehlopha sa tlhokomelo ea hlobo, le hore na ba ka fana ka litlaleho tsa PFMEA (Potential Failure Mode and Effects Analysis)—sehlopha sa botekgeniki se hōlileng tsebong se ka lebella likotsi tse setseng tlhahisong le ho ntlafatsa lits'ebetso esale pele.

2. Netefatsa "Linyeoe tse Fetileng le Lintlha tsa Sekhahla sa Li-scratch" Bafepedi ba tlameha ho fana ka litlaleho tsa lipalo-palo tsa sekhahla sa li-scratch bakeng sa likhoeli tse 12 tse fetileng (tse arotsoeng ka lihlopha ho latela mohlala oa sehlahisoa), 'me lihlopha tse 3-5 tsa litlaleho tsa tlhahlobo ea boleng li lokela ho khethoa ka mokhoa o sa reroang bakeng sa ho netefatsa bonnete ba data. Bafepedi ba nang le boiphihlelo ba liodara tse kholo indastering e tšoanang (mohlala, likarolo tsa likoloi, mechini ea indasteri). Bafepedi bana ba bokelletse litharollo tsa ho sebetsana le li-scratch tsa tlhahiso ea li-scratch; mohlala, ha ba fa moetsi oa likoloi likhetla tsa alloy ea aluminium, ba bolokile sekhahla sa li-scratch ka tlase ho 3%.

3. Lekola "Bokhoni ba Taolo ea Lintho tse Tala" Bohloeki le botsitso ba metsoako ea lisebelisoa tse tala tsa alloy ea aluminium li ama ka ho toba boleng ba lintho tse lahlang (mohlala, litšila tse feteletseng li ka lebisa mapetsong habonolo). Moreki o tlameha ho kopa ka ho hlaka hore bafani ba thepa ba: fane ka bopaki ba litsela tsa ho reka thepa e tala (mohlala, litumellano tsa tšebelisano-'moho le lihlahisoa tse tsebahalang tsa aluminium ingot); le ho fana ka litlaleho tsa tlhahlobo ea thepa (liphetho tsa ho lemoha lintho tse spectral) bakeng sa sehlopha se seng le se seng sa thepa e tala, ho netefatsa hore litaba tsa likarolo tse kang Si le Mg li fihlela maemo a theko (mohlala, litaba tsa Si tsa alloy ea aluminium ea A380 li laoloa pakeng tsa 7.5% le 9.5%).

III. Tekanyo ea Bobeli ea Bohlokoa: Ho Laola Ts'ebetso ea Tšebelisano-'moho - Ho Sebelisa "Mekhoa ea Theko" ho Fokotsa Litefiso tsa Litšenyehelo tse Senyehileng

Kamora ho khetha mofani ea nepahetseng, bokhoni ba moreki ba ho laola ts'ebetso ke ba bohlokoa ho fokotsa litefiso tsa litšila. Ka ho hlalosa ka ho hlaka litlhoko le ho matlafatsa tlhokomelo, ts'ebetso ea tlhahiso ea mofani e ka etsoa hore e be "e laoloang le e ka lateloang":

1. Hlahisa Litlhaloso tsa Theko tse “Lebisitsoeng ho Lefela” Konteraka ea theko e lokela ho hlalosa ka ho hlaka lintlha tse latelang ho qoba ho se hlaka: Mekhoa ea Kahlolo ea Li-Scrap: Hlalosa ka ho hlaka matšoao a bongata a kang bophara ba li-pore ≤ 0.5mm, palo ea li-pore ka ho lahla ≤ 3, le sebaka sa ho putlama ha sekoti ≤ 0.1% ea sebaka sohle sa ho lahla (sheba maemo a ASTM B179); Karohano ea Boikarabello: Ha sekhahla sa li-scrapp se feta 5%, mofani oa thepa o tlameha ho nkela thepa sebaka ntle ho mabaka 'me a jare litšenyehelo tsa thepa; ha se feta 10%, moreki o na le tokelo ea ho felisa konteraka le ho kopa puseletso; Litlhoko tsa Teko: Ho hlokahala hore mofani oa thepa a fane ka tlaleho ea teko ea motho oa boraro (joalo ka tlaleho ea teko e sa senyeheng ea SGS) bakeng sa sehlopha se seng le se seng sa lihlahisoa, ka litšenyehelo tsa teko tse jeroeng ke mofani oa thepa.

2. Ho hloka hore bafepedi ba ntlafatse lits'ebetso tsa tlhahiso (lintlha tsa bohlokoa tse ka hlokomeloang ke moreki) Jwalo ka moreki, ha o hloke tsebo e tebileng ka die Theknoloji ea ho Lahla, empa o tlameha ho hloka hore bafepedi ba etse hantle dikarolong tse nne tse latelang tse nang le tshusumetso e kgolo ho fokotsa sekgahla sa ditshila: * **Taolo ya mocheso wa hlobo:** Mocheso wa pele ho futhumatsa hlobo o lokela ho ba o tsitsitseng ho 180-220℃ (diphetoho tse nyane ho latela thepa) ho qoba ho phodisa ho sa lekanang le ho fokotseha ha di-castings, tse ka bakang mapetso. * **Ntlafatso ya di-parameter tsa ente:** Lebelo la ente le lokela ho laolwa ho 3-8m/s, mme kgatello ya ente e ≥100MPa ho netefatsa ho tlatswa ho lekaneng ha alloy ya aluminium e qhibilihisitsweng le ho fokotsa masoba. * **Potoloho ya tlhokomelo ya hlobo:** Hlobo e lokela ho feta ntlafatsong e felletseng dipotolohong tse ding le tse ding tse 5000 tsa tlhahiso, e nkela dikarolo tse tsofetseng sebaka ho thibela ho kheloha ha di-castings ka lebaka la botsofali ba hlobo. * **Moralo wa sistimi ya moya:** Bophara ba moedi wa moya wa hlobo e lokela ho ba ≥0.2mm mme botebo bo ≤0.5mm ho netefatsa ho ntsha moya o boreleli wa dikgase ho tswa ho alloy ya aluminium e qhibilihisitsweng.

3. Kenya tshebetsong sistimi ya tlhokomelo e habeli ya "tlhahlobo ya disampole + tlhokomelo sebakeng seo". Bakeng sa theko e kgolo, etsa sampole mme o hlahlobe ho ya ka maemo a AQL 2.5 (mohlala, dikotwana tse 50 ka sehlopha, mme bonyane dikotwana tse 3 tse sa dumellaneng le tsona di dumellwa). Haeba ho fumanwa dikotwana tse sa dumellaneng le tsona, atolosa sebaka sa ho etsa sampole hanghang. Bakeng sa diotara tsa boleng bo hodimo, tsa bongata bo boholo (mohlala, theko e le nngwe e fetang dikotwana tse 100,000), bahlokomedi ba mokga wa boraro ba ka bewa sebakeng seo ho tsepamisa maikutlo hodima dintlha tse tharo tsa bohlokwa: tlhahlobo ya polokelo ya thepa e tala, phethahatso ya tshebetso ya tlhahiso, le tlhahlobo ya sehlahiswa e fedisitsweng, ho fana ka maikutlo a nako ya sebele mathateng afe kapa afe.

ddc-metsi-a-pholisa-sehlomo-sa-mollo.jpg

IV. Tekanyo ea Boraro ea Bohlokoa: Ho Matlafatsa Mokhoa oa Tšebelisano-'moho – Ho Finyella "Phokotso ea Litšila tsa Nako e Telele Tse ka Utloang Bohle"

Ho fokotsa sekhahla sa lithōle ha se ketso ea hang feela, empa ke ts'ebetso e tsoelang pele ea ntlafatso ka tšebelisano-'moho ea nako e telele. Bareki ba hloka ho theha mokhoa oa tšebelisano-'moho le bafepedi ba boleng bo holimo ho fokotsa sekhahla sa lithōle hammoho:

1. Tšoara "Liboka tsa Tlhahlobo ea Boleng" khafetsa Tšoara liboka tsa inthanete le bafepedi kotara e 'ngoe le e 'ngoe, u tsepamisitse maikutlo ho tse latelang:
Ho hlahloba lintlha tsa sekhahla sa lithōle tsa kotara e fetileng, ho sekaseka mefuta ea lithōle (mohlala, masoba a 60%, mapetso a 30%) le lisosa tsa tsona;
Ho ntshetsapele merero ya ntlafatso mmoho, jwalo ka ho hloka bafepedi ho eketsa dikanale tsa ho ntsha moya kapa ho ntlafatsa lebelo la ente bakeng sa mathata a ho ba le masoba;
Ho beha lipheo tsa sekhahla sa thepa e sa hlokahaleng bakeng sa kotara e latelang (mohlala, ho fokotsa ho tloha ho 8% ho isa ho 5%), le ho hokahanya phihlello ea sepheo le bophahamo ba theko ea kotara e latelang.

2. Khothaletsa "Ntlafatso ea Tšebelisano-'moho ea Theknoloji" Haeba lihlahisoa tse rekiloeng li na le meaho e rarahaneng (joalo ka likarolo tse sa bōpeheng ka tsela e sa tloaelehang kapa likarolo tse nang le mabota a masesaane), arolelana maemo a tšebeliso ea sehlahisoa le bafepedi esale pele, mema bafepedi ho kenya letsoho tlhahlobong ea Design for Manufacturability (DFM) nakong ea mohato oa moralo oa sehlahisoa, le ho ntlafatsa sebopeho sa sehlahisoa (joalo ka ho eketsa likhutlo tse chitja le ho tebisa likarolo tse fokolang) ho fokotsa kotsi ea likheo ho latela pono ea moralo; Khothaletsa bafepedi ho hlahisa mahlale a macha (joalo ka vacuum die casting le squeeze casting), 'me ba ikemisetse ho fetola theko ea theko ka nepo bakeng sa litšenyehelo tse eketsehileng tse tlisoang ke ntlafatso ea theknoloji (joalo ka ho amohela keketseho ea 2%-3% thekong ea theko haeba sekhahla sa likheo se fokotsehile ho tloha ho 10% ho isa ho 3%), ho fihlela boemo ba ho hapa bohle.

3. Theha Sistimi ea "Taolo ea Maemo a Bafani". Bafepedi li tla aroloa ka mekhahlelo e meraro (A, B, le C) ho latela ts'ebetso ea tsona ea sekhahla sa litšila:
**Mokhahlelo A (Sekhahla sa ho se Lefelle ≤ 5%): Bophahamo bo eketsehileng ba theko, nako e atolositsoeng ea tšebelisano-'moho, le lipehelo tsa tefo tse khethehileng (mohlala, ho atolosa lipehelo tsa tefo ho tloha matsatsing a 30 ho isa ho a 60);
**Tier B (Sekhahla sa ho se lahle 5%-10%): Ho hlokahala ho lokisa bothata nakong ea likhoeli tse 3, ka palo e fokotsehileng ea theko nakong ea tokiso;
**Tier C (Sekhahla sa ho se sebetse hantle > 10%): Ho emisoa ha tšebelisano-'moho le ho beoa lenaneng le letšo.