Aluminium Alloy le Tsamaiso ea Lisebelisoa tse Thusang Tlhahisong ea Die Casting

Nako ea ho Hatisa: 05 / 10 2021 Mongoli: Mohlophisi oa Setsi Etela: 12904

Tsamaiso ea Boitsebiso bo ka Sehloohong

1. Ho kena ha taolo ea li-ingots tsa aluminium alloy

Ka lebaka la phepelo ea khase le lintlha tse thata tsa aluminium alloy, limela tsa tlhahiso ea aluminium ingot li tlameha ho etsa mosebetsi o motle oa ho hloekisa, ho tlosa litšila le ho tlosa slag ho thibela liphoso tse kang khase e ngata le litšila tse ngata ho li-ingots tsa aluminium hore li se futsetsoe ho shoa- lahla mokelikeli oa aluminium. Kamora hore motsoako oa aluminium ingot o kene fekthering, mohato oa pele ke ho lekola ponahalo. Bokaholimo ba aluminium ingot bo hlokahala hore bo be boreleli, bo se na makukuno, bo se na litšila tsa oli, hlobo le sekala sa oxide, mme sebopeho sa ho robeha ha aluminium alloy ingot se setle ebile se teteaneng. Ha hoa lokela hore ho be le khethollo e tebileng, shrinkage, kapa shrinkage. Slag le inclusions. Mohlala oa sebopeho sa sehlopha ka seng le nomoro ea mocheso ho netefatsa hore sebopeho sa alloy se sebelisitsoeng sea tšoaneleha. Tlhahiso ea lihlahisoa tse nang le litlhoko tse ikhethang, lintho tse ling tsa liteko li hloka ho eketsoa. Mohlala, ha ho hlahisoa lihlahisoa tse nang le litlhokahalo tsa ts'ebetso ea mochini, ha aluminium alloy ingot e tlisoa bakeng sa tlhahiso, ho hlokahala hore ho tlisoe bareng ea liteko bakeng sa sebopi ka seng; Ha o hlahisa lihlahisoa tse nang le litlhokahalo tsa ho se kenelle moea, tekanyo ea pinhole ea aluminium alloy ingot e tlameha ho eketsoa. Lekola

Mefuta ea lits'epe tse kopantsoeng tsa aluminium tse sebelisitsoeng tlhahisong ea 'nete hangata ha e felle feela sehlopheng se le seng,' me litlhoko tsa lik'hemik'hale tsa sehlopha ka seng sa alloyum alloy li fapane haholo. Lintlha tsa mantlha sehlopheng se le seng sa alloy li sehlopheng se seng sa alloy. E kanna ea nkuoa e le litšila. Bakeng sa boteng ba limaraka tse ngata, ho hlokahala hore ho khetholloe ka ho hlaka lits'epe tse kopantsoeng sehlopheng ka seng ho thibela ketsahalo ea ho kopanya nakong ea ts'ebeliso. Tekanyo e akaretsang ke ho hlakisa ka ho hlaka le ka mokhoa o ts'oanang 'mala oa ponahalo ea lits'epe tse kopantsoeng tsa aluminium tsa lihlahisoa tse fapaneng le baetsi ba fapaneng, le ho boloka lisebelisoa tse fapaneng libakeng tse fapaneng kamora hore ba fihle fekthering.

2. Aluminium alloy e qhibilihisa ts'ebetso ea ts'ebetso

Tloaelo ea tlhahiso e bonts'a hore ho ntlafatsa boleng ba motsoako o qhibilihisang ke ntlha ea bohlokoa ho ntlafatseng boleng ba li-cast cast. Ka hona, taolo ea lisebelisoa tse tala e lokela ho laoloa ka thata e le hore lisebelisoa tse sa tšoaneleheng tse tala li se kenngoe ka har'a workshop kapa ho hlahisoa. Sebetsa ka thata ho latela maemo a hlokoang ke ts'ebetso ea ho qhibiliha ha alloy, le ho matlafatsa taolo ea lisebelisoa tse fapaneng tse tala (thepa e ncha, thepa e nchafalitsoeng le lisebelisoa tse thusang).

Ts'ebetso ea aluminium alloy e qhibilihisang e tlameha ho ba le melaoana e hlakileng mabapi le mocheso o qhibilihang, nako ea ho qhibilihisa, le karolo ea lisebelisoa tse nchafatsoang, haholo lisebelisoa tse nchafalitsoeng li lokela ho aroloa le ho laoloa ka thata, 'me ha lia lokela ho tsoakana. Lisebelisoa tse nchafalitsoeng li lokela ho hloeka li se na mafura, mafome, lehloa, mongobo le ho kenella. Lintho tse silafatsang mafura tse linthong tse nchafalitsoeng li ka hlakoloa ke moetsi oa ingot ea aluminium mme li ke ke tsa kenngoa ka kotloloho seboping se qhibilihang bakeng sa ts'ebeliso; bakeng sa litene tsa aluminium tse qhalakaneng, li tlameha ho hlahlojoa 'me lerōle, lehlabathe le maloanlahla a mang a ka hare a ka tlosoa. Sebelisa: Moo aluminium e entsoeng ka ho qhibilihisoa e sebelisetsoang ho futhumatsa, karo-karolelano ea moemeli oa ho hloekisa le ho tlosa slag e kholo ho feta ha ho sebelisoa feela alloy aluminium ingot bakeng sa ho qhibiliha. Tlhahisong ea boemo ba leholimo e nang le mongobo o phahameng, karolo ea lisebelisoa tse nchafalitsoeng ha ea lokela ho feta 30%, 'me thepa e nchafalitsoeng e ka eketsoa ka nepo maemong a leholimo a omileng, empa ha ea lokela ho feta 40%.

Ho tšeloa le ho qhibiliha ha aluminium e qhibilihisitsoeng kamora ho qhibilihisa ho lokela ho etsoa ka nako e loketseng, mme mekhahlelo e tsamaellanang e lokela ho hatisoa kamoo ho hlokahalang. Ts'ebetsong ea ho qhibiliha e bohareng, lik'hemik'hale tsa pitsa e 'ngoe le e' ngoe ea mokelikeli oa aluminium li lokela ho lekoa ho netefatsa hore lik'hemik'hale tsa sehlahisoa li tšoaneleha nakong ea ho qhibiliha. Ntle le moo, ho qhibiliha ha nako e telele ho lokela ho qojoa, ho seng joalo litaba tsa haedrojene tse mokelikeling oa aluminium li tla eketseha, tse tla ama matla le moea o thata oa sehlahisoa se lahlelang. Ka kakaretso, ha e fete 4h ho tloha ho qhibilihang ho isa ho laoleng.

Tsamaiso ea Lisebelisoa tse Thusang

1. Taolo ea moemeli oa tokollo

Ts'ebeliso ea moemeli oa hlobo ea hlobo e ka etsa hore tšepe e tlatsuoe hantle, e nolofatse ho theha, e thibele hlobo, e etsa hore castings e fumane boleng bo khanyang, bo boreleli ebile bo bataletse, mme e be le tšusumetso e kholo morerong oa tlhahiso, ho lahla bokaholimo le boleng ba kahare. Ka nako e ts'oanang, e ka sireletsa hlobo, e qoba khoholeho ea tšepe e phahameng ea mokelikeli holim'a hlobo, e fokotsa ho futhumala ha mocheso le mocheso oa hlobo ea hlobo, mme e lelefatsa bophelo ba hlobo. Ha hlobo e buloa, e loketse mochini o boreleli oa ho betsa, hape e bapala karolo ea bohlokoa ho fokotsa ho ferekana le ho roaloa ha litebele, molamu oa ejector le likarolo tse tsamaeang. Taolo ea moemeli oa tokollo ha e kenyeletse feela khetho le karolelano ea moemeli oa tokollo ka boyona, empa hape e kenyelletsa taolo ea ho fafatsa le ho omisa moea oa moemeli oa tokollo ke mosebelisi. Ka kakaretso, khetho ea moemeli oa tokollo e na le litlhokahalo tse latelang.

E na le lubricity e ntle mocheso o phahameng le ntlha e tlase ea volatilization. Metsi a moemeli oa tokollo a ka fetoha volatilize kapele ho 100-150 ° C.
Ha e na phello e senyang ka hlobo e-shoa-lahla le likarolo shoa-lahla, 'me e na le tshebetso tsitsitseng. Moemeli oa tokollo ha aa lokela ho tsitsisa kapele le ho hola moeeng.
Ha ho khase e kotsi e tla koaheloa ke mocheso o phahameng, 'me ha ho litšila tse tla etsahala holim'a mokoti o shoang.

Hajoale, ho fafatsa moemeli oa tokollo ke ts'ebetso ea matsoho, mme ts'ebetso e nepahetseng ea ho fafatsa ke ntlha ea bohlokoa ho netefatsa boleng ba ho betsa, bophelo ba hlobo e lahlang, le katleho ea tlhahiso. Nako ea ho fafatsa ea moemeli oa tokollo ea hlobo e boetse e fetoha ka ts'ebetso ea hlobo ea tokollo, karo-karolelano ea sekhahla, libopeho tse fapaneng tsa ho lahla, le lithemparetjha tse fapaneng tsa hlobo tsa mefuta e fapaneng ea mahlahana a hlobo. Moemeli oa tokollo o fafatsoa ho tloha sethunya sa spray ho ea holim'a hlobo ho kenella filiming e sireletsang. Ho nka nako e telele. Ha ts'ebetso e sa phetheloa, ts'ebetso ea ho betsa ea etsoa, eo hangata e leng sesosa sa likoli tse hlephileng tsa ho betsa. Ho latela melaoana ea ts'ebetso ea ho lahla, nako e nepahetseng ea ho fafatsa e lokela ho amoheloa bakeng sa mofuta o fapaneng oa moemeli oa tokollo le likhakanyo tse fapaneng tsa hlapollo. Basebetsi ba lahlang ba tlameha ho utloisisa moelelo oa meeli e kaholimo le e tlase ea mekhahlelo ea ts'ebetso le tšekamelo ea tšusumetso ea phetoho, le ho etsa liphetoho tse nepahetseng ho latela maemo a bokaholimo ba li-cast cast tse hlahisitsoeng.

Ha o sebelisa mahlahana a lokolloang metsing, karo-karolelano ea basebelisi ba tokollo e tlameha ho laoloa ka thata. Haeba karolelano ea moemeli oa tokollo ho metsi e le tenya haholo, ho tla theoa filimi e tenya holim'a metsi a hlobo, mme pokello ea moemeli e tla theha butle-butle holim a hlobo. Mongobo oa moemeli oa tokollo o ke ke oa lokolloa ka botlalo mme khase e tla hlahisoa, e tla etsa karolo ea ho lahla. The compactness hare ho mpefala. Haeba karolelano ea moemeli oa tokollo ho metsi e le tšesaane haholo, phello e ke ke ea fihlelleha, 'me likarolo tse bolaeang li tla hlokofatsoa ke khatello le hlobo.

Ka hona, taolong ea boleng ba lithupelo tsa batho ba shoang, taolo ea moemeli oa tokollo e na le tšusumetso e kholo boleng ba likarolo tse laoloang. Ho a hlokahala ho matlafatsa botsamaisi sebakeng sena, joalo ka ho khetha motho ea ikhethang ea tla ikarabella bakeng sa karolo ea moemeli oa tokollo, le ho hlakisa ka ho hlaka mefuta e fapaneng ea karolelano ea moemeli oa tokollo le metsi nakong ea tlhahiso ea ho lahla batho lihlahisoa li ikemiselitse le ho lekanyetsoa ho latela ts'ebetso ea tokisetso ea moemeli. Ha a fafatsa, motsamaisi o tla etsa koetliso e thata mabapi le ts'ebetso ea ho fafatsa, mme ketso e tlameha ho etsoa ho latela litlhoko le litlatsetso, 'me ha ea lumelloa ho fafatsa ho feta, ho nyanyatsa hanyane kapa ho fosa fafatsa.

2. Tsamaiso ea oli ea litebele

Hajoale, tšebeliso e ngata ea oli e thehiloeng ho litebele e tlotsang oli kapa phatsa ea setlolo, ho sa tsotelehe hore na ke setlolo sa mofuta ofe sa litebele, kamora hore mokelikeli oa aluminium o kene ka moqomong, o lokela ho chesoa ka botlalo ka nako e khuts'oane, mme masalla a tlameha ho ajoa mokatong o kaholimo oa mokelikeli oa motsoako, E le hore tšusumetso ea oli ea litebele sehlahisoa e se ke ea ba kholo haholo. Ho seng joalo, khase e hlahisoang ke mollo le masalla kamora ho tuka e tla kena sehlahisoa, 'me ho ka nahanoa sephetho.

Tsela e bonolo ea ho netefatsa oli ea litebele ke ho boloka 'mala oa mochini oa thepa ka hlobo. Ka kakaretso, botenya ba mochini oa thepa ke 1/3 ho 1/4 ea bophara ba litebele, 'me bolelele ba ho fifala ha oli ea litebele ha boa lokela ho feta 3 ea botenya ba mochini oa thepa. / 5; Ka nako e ts'oanang, ha hoa lokela ho ba le lefifi le hlakileng qetellong ea mochini oa thepa (ke hore, masala a mangata a phofo ea graphite). Ho seng joalo, kamora hore sehlahisoa se sebetsoe, bofokoli bo joalo ka masoba bo tla eketseha.

Ts'ebetsong ea tlhahiso, re lokela ho ela hloko boemo ba ts'ebetso ea sesebelisoa sa litlolo ka litebele ka linako tsohle. Haeba lubricant e nyanyatsoa haholo kapa e nyane haholo, e tla ba le tšusumetso e mpe bophelong ba kamore ea khatello le litebele le boleng ba samente e shoang. Ha o fetola bongata ba setlolo se sebelisitsoeng, ho hlokahala hore o nahane ka botenya ba litebele le ho senyeha ha hlobo. Haholo-holo ha u sebelisa setlolo sa phatsa, ho sa tsotelehe hore na li-pellets tsa boka li sebelisoa joang hlobo e lahlang, ho tla ba le bothata ba volatilization ea lintho tse phelang. Haeba bongata bo bongata ba lintho tse tlholehang bo sa khone ho tsoa hantle, bo tla ba le tšusumetso e kholo ho hlahiseng li-pores karolong e lahletsoeng ke lefu.

3. Tsamaiso ea litebele

Punch le kamore ea khatello li theha sistimi e itšetlehileng ka eona. Tlas'a maemo a tloaelehileng, bophelo ba kamore ea khatello bo ka fihlela lilemo tse 2 ho isa ho tse 3, 'me bophelo ba litebele bo bokhutšoane, phetoho e le' ngoe, 'me bophelo bo bolelele bo ka fihla makhetlo a fetang a 10,000 XNUMX. Phapang pakeng tsa nako ea bophelo e tla baka ho fetoha ha boleng ba sehlahisoa le liphetoho tse kholo ho litšenyehelo tsa tlhahiso. Ka hona, taolo e ntle ea litebele e ke ke ea tsitsisa boleng ba likarolo tsa ho lahla feela, empa hape e fokotsa haholo litšenyehelo tsa tlhahiso ea ho betsa.

Moralo oa boholo ba litebele. Tlas'a maemo a tloaelehileng, ho hlokahala hore ho be le tumello e itseng lipakeng tsa litebele le kamore ea khatello. Boitlhakiso bo bonts'a hore lekhalo le letle le ka ba 0.1 mm. Nakong ea ente, haeba lekhalo le le leholo haholo, mokelikeli oa aluminium alloy o ka kena lekhalong, 'me ho tla ba le ho dutla hoa mokelikeli oa aluminium le mosi, e leng ho tla mpefatsa ho tsofala ha setebele le ho fokotsa bophelo ba litebele; haeba lekhalo le le lenyane haholo, litebele li tla tsamaea ka mokhoa ona Ho na le jamming, lebelo la litebele ha le khone ho fihlela lebelo le reriloeng esale pele ke ts'ebetso, nako ea ho tlatsa hlobo e telele, 'me mathata a boleng ba ho lahla likarolo lia eketseha. Ka hona, ts'ebetso le tlhahiso ea litebele e tlameha ho etsoa ka mokhoa o tiileng ho latela setšoantšo, e le hore qetellong e laole lekhalo le boima, ho lelefatsa bophelo ba litebele, le ho netefatsa boleng ba sehlahisoa.
Pholiso ea litebele Ho tloha ha ts'ebetso ea ho lahla e supa hore mocheso oa litebele o lula o fetoha, ka phetoho ea mocheso, lekhalo lipakeng tsa litebele le kamore ea khatello le lona lea fetoha. Liphetoho tsena ha li ame feela bophelo ba tšebeletso ea litebele, empa hape le ts'ebetso ea botsitso ba ts'ebetso ea ente nakong ea ts'ebetso ea ho lahla. Ho boloka lekhalo le letle, ho hlokahala hore ho pholile litebele. Moralo, ho nahanoa hore plunger e folisitsoe ka botlalo ke mokokotlo oa metsi oa molamu oa ente, mme mocheso oa litebele o tlosoa ho isa tekanyong e phahameng, mme lekhalo le letle lipakeng tsa litebele le kamore ea khatello le ka bolokoa tsitsitse. Mehato ena e thusa ho netefatsa botsitso ba ts'ebetso ea ente ea hlobo e ngoe le e ngoe le botsitso ba boleng ba lihlahisoa tse lahlehang. Tloaelo e bonts'itse hore sistimi ea ente e nang le pholileng e ntle ea litebele e ka lelefatsa bophelo ba ts'ebeletso ha e netefatsa botsitso ba ts'ebetso ea ente. Leha ho le joalo, hoa hlokahala ho etsa mosebetsi o motle oa ho tiisa potoloho ea metsi a pholileng, 'me u hlokomele ho dutla ha metsi a pholileng a bakoang ke ho tiisoa hampe pakeng tsa litebele le molamu oa ente. Haeba tlhokomelo e lekaneng e sa lefelloe ho dutla ha metsi a pholileng, e tla ama sehlahisoa sena ka botebo. Ho tiisa moea.

4. Tsamaiso ea Crucible

Ts'ebeliso ea li-crucibles e bohlokoa haholo ho lahla li-alloys tsa aluminium, haholo ts'ebeliso ea li-crucible tsa tšepe. Ha crucibles sitoa ho sebetsa ka tieo ho latela tobileng tsoana le sebopi, le Fe dikahare ka motsoako aluminium ka tshebetso morago ga moo ho hlahisoeng ka fetela molao-motheo. Ho ea ka boiphihlelo ba rona, haeba tšepe e ts'ebetsong e ka silafatsoa ka pente e ts'oaroang ka tatellano ho latela litlhoko tsa ts'ebeliso ea pitsa e ncha, 'me ea hlatsuoa matsatsi ohle a 3 nakong ea ts'ebeliso, haholoholo keketseho ea litaba tsa Fe nakong ea lefu lohle- Ts'ebetso ea tlhahiso ea tlhahiso e ke ke ea feta 0.2% (ena ke lintlha tsa lipalo tsa k'hamphani ho theosa le lilemo, ho kanna ha ba le liphapang lipakeng tsa lik'hamphani tse fapaneng). Tlas'a mohopolo oa ho laola tlhahlobo e kenang ea li-ingots tsa aluminium, e ka tiisa ka botlalo hore motsoako oa motsoako oa li-cast cast o fihlella litlhoko tse tloaelehileng. Le ha ho na taba ea ho ts'oenyeha ka ho eketsa tšepe ts'ebelisong ea "graphite crucibles", e lokela ho eleloa hloko le ho feta. Tsela omisa bakeng sa tšebeliso ea pele ea crucibles graphite lokela ho tieo kenngwa tshebetsong. Ts'ebetso ena e tla ama bophelo ba ts'ebeletso ea li-crucible tsa graphite nakong e tlang mme ha e so ka e futhumatsoa esale pele. Bophelo ba graphite tsoana le sebopi tla ameha haholo. Theko e phahameng ea e mong le tsoana le sebopi graphite tla ama litšenyehelo tsa tlhahiso ea foromeletsoeng shoela'ng.

fihlela qeto e

Har'a lintlha tse hlano tse kholo tsa taolo ea boleng, tse kaholimo li bua haholo ka litaba tsa "lisebelisoa" le "batho". Ha re ntse re tsamaisa thepa e tala le thepa e thusang, koetliso le taolo ea basebetsi li lokela ho etsoa hantle, 'me boemo ba mahlale ba basebetsi ba lahlang bo hloka ho ntlafatsoa. E le hore ho rarolla ka katleho le mathata a boleng ka tlhahiso ea shoa-foromeletsoeng, sebelisa khopolo ea taolo ya boleng kakaretso ho taolo boleng ba kokoano shoela-foromeletsoeng ho, 'me sebelisa e laolehileng shoa-foromeletsoeng tsebo tlhahiso ea khopolo ho tataisa tlhahiso, eo ka sebele e tla ntlafatsa bokhoni ba taolo ea boleng ba lithupelo tsa batho ba shoang ho ea boemong bo bocha. .

Ka kopo boloka mohloli le aterese ea sengoloa sena hore se hatisoe hape: Aluminium Alloy le Tsamaiso ea Lisebelisoa tse Thusang Tlhahisong ea Die Casting

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