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Zinc alloy die-casting vashandi vanofanirwa kugona uye kunzwisisa hunhu hwezvinhu izvi, uye kuongororwa nekududzirwa kwezinc alloy maitiro anowanzoshandiswa.
1. Mhedziso yeZinc Alloy
Zinc alloy yakaoma uye yakasimba, uye inzvimbo yakanaka yekutsiva machining, kuumba, kudhinda,
kugadzira uye kugadzira zvinhu. Tafura inoratidza zvinhu zve zinc alloys.
Imwe neimwe zinc alloy chigadzirwa ine yakasarudzika maitiro, saka sarudza chigadzirwa chakanyanya kunaka
inokodzera zvaunoda.
Zinc alloy maitiro:
●zvakaoma uye zvakasimba
● High conductivity
● High heat transfer
●Mbichi inodhura yakaderera
● Yakarurama uye yakagadzikana matatu-dimensionality
●Good thin-wall performance
● Kuita kwakanaka kwekutonhora, nyore kubatanidza
●Chigadzirwa chepamusoro chakapedzwa
● Super anti-corrosion
● Hushamwari hwezvakatipoteredza, hunogona kushandiswazve
Reference index: 1=indekisi yepamusoro, 5=indekisi yakaderera
Kupokana nekutsemuka kwekushisa kwepamusoro.
Iko kugona kweiyo alloy kuramba kumanikidzwa kunokonzerwa nekushanduka kwekushisa, kuwedzera kwemafuta
uye contraction.
B inopesana nechando kuputsika uye deformation.
Iko kugona kwema alloys kuramba deformation, kutsemuka, uye kukotama munzvimbo dzakaderera tembiricha.
C machining uye mhando.
Kuongorora kwakadzama kwekucheka, kucheka mavhiri zvivakwa, kupedzwa kwemhando yechigadzirwa uye hupenyu hwekushandisa.
D electroplating kugadzirisa uye kunaka.
Iko kugona kwekufa castings kugamuchira uye kuchengetedza plating pasi pekushanda kwakajairwa.
2. Die-cast zinc alloy
Chikamu chevagadziri vezvimiro vanofanirwa kufunga nezvezvinokambaira zvezinc alloys
yataurwa pazasi. Aya ma alloys anonyanya kushingirira kunyoro uye kuvhunduka kupfuura aluminium
alloys.
NO.1
Nhamba 2 Zinc Alloy
Zinc Alloy No. 2 inonziwo Kirksite. Ndiyo alloy yakasimba yemhuri iyi. Zvisinei,
nekuda kwehuwandu hwemhangura, huchaperekedzwa nehunhu hwekuchembera nekufamba kwenguva.
Shanduko iyi yaisanganisira kuwedzera kudiki kwevhoriyamu (0.0014 mm/[inin]) mushure memakore makumi maviri, ne
kuderedzwa kuwedzera uye kuzadza kutaura.
Kunyange zvazvo zinc alloy Nha. Zvakadaro
yakakwirira inokambaira maitiro kupfuura mamwe zinc alloys, uye inochengetedza kuoma kwakanyanya uye simba mushure
kuchembera.
NO.2
Nhamba 3 Zinc Alloy
Zinc alloy #3 ndicho chinhu chesarudzo che zinc inofa uye ndiyo inonyanya kufarirwa zinc alloy kuNorth.
America. Yayo yakaenzana yemuviri uye makemikari ehupfumi ndiyo inonyanya kudiwa, kunyanya
inokodzera kufa-kukanda molds, ine yakagadzikana-matatu-dimensional chimiro uye anti-kuchembera, inova
nei mold zhinji dzichiishandisa seyakabikwa. Zinc Alloy No. 3 ine kupera kwakanaka uye yakakodzera
plating, kupenda uye chromic acid application. Ivhareji yeavhareji inofa yekukanda zvinhu.
Kana yakakwirira kuomarara zvinhu zvinodiwa, mamwe marudzi e zinc alloys anofanirwa kutariswa.
NO.3
Nhamba 5 Zinc Alloy
Zinc alloy No. 5 ndiyo inonyanya kushandiswa zinc alloy muEurope. Nekuda kwemhangura yakakwirira
zviri mukati, kuoma kwakasimba, uye mushure mekurasikirwa nechikamu chekutambanudza (kuenderera mberi kwekuwedzera),
kuwedzera kunofananidzwa neNo. 3 zinc alloy, uye simba rayo rinowedzerwa. Izvi
kuderedzwa mukurebesa, muchiitiko chechipiri, kuchakanganisa chimiro chesimbi, senge
kukotama, kufa, kukwenya, kuputika, izvo zvinofanirwa kutariswa nemugadziri. Nokuti
chikamu chemusika cheNo. 3 zinc alloy yakakwirira kwazvo, zvikamu mainjiniya anowanzo shandisa Nha
yeNo. 5 pakusimbisa zvikamu. Nekudaro, kana iwe uri kugadzira zvigadzirwa zvinoda yakakwirira
elongation performance, isu tichiri kukurudzira kuti ushandise Nhamba 5 zinc alloy. Kunyangwe kupenga
indices ye zinc alloys Nhamba 3 uye Nhamba 5 yakafanana, zinc alloy Nhamba 5 ine simba rinokambaira.
kuramba, uye ese ari maviri marudzi ealoyi akakodzera kune arc machining. Kana tembiricha
inokwira kupfuura tembiricha yakajairika, uye pane zvakakosha dhizaini zvinodiwa zve
chimiro chekutakura kwezvikamu, iyo No. 5 zinc alloy inenge iri nani sarudzo.
NO.4
Nhamba 7 Zinc Alloy
Zinc Alloy No. 7 inoshanda sechigadziriso cheZinc Alloy No. 3 kuti ivandudze kufa castability, ductility
uye pamusoro pemhando. Yakawanda zinc alloy No. 7 inoshandiswa kune zvikamu zvesimbi, uye kana iyo
kuumbwa kwe mold kune zvakakosha zvinodiwa pakuita kwayo kunotevera magungano, akadaro
se crimping kana kuunganidza. Yakasimba kufa castability, asiwo yakakodzera kune yakaonda madziro kudzvanya.
Mamwe mold anoda akasimba kufa-castability, kunyanya yakaoma uye yakatetepa zvikamu, asi izvi
hazvirevi kuti zvinoda kudzvanya zvinodikanwa. Yakarurama die dimensions uye
ma paramita akakosha kuitira kuti udzivise sparks dzakawandisa panguva yekutsemuka uye tangent
process. Iyo yakakwirira-yepamusoro elongation yeNo. 7 zinc alloy inoratidzwawo mukugadzirwa
nzira, asi inonyanya kuratidzwa mukugadzirisa uye kugaya kushanda muchipiri
Process.
NO.5
ZA-8 zinc alloy
Iyo inenge iine aluminium yemukati muzana muzana yenhamba indekisi inoratidza kuti ZA-mhando
alloys akanyanya kupfuma mualuminium kupfuura Zamak-mhando alloys.
Zinc Alloy ZA-8 yakatanga kugadzirirwa zvechigarire die casting alloys ane yepamusoro mhando kupedzisa
uye plating unhu. Inonyanya kushandiswa sechinhu chekushongedza. Kunyangwe iyi alloy haisi
yakanaka semamwe alloys ekukanda kufa, ine yakanyanya kuoma uye kuramba
deformation. Panyaya yekushanda kwemakemikari, kuoma, kusimba uye deformation
kushorwa kweZA-8 zinc alloy yakasimba kupfuura mamwe anopisa-akanyungudutswa zinc alloys. Iyi ndiyo
chete ZA alloy inogona kushandiswa kupisa chamber die casting.
NO.6
ZA-27 zinc alloy
Nekuda kweiyo yakakwira aluminium yeZA-27 zinc alloy, inogona kushandiswa chete kukamuri inotonhora.
kufa kukandira. Aya alloys ane kuomarara kwepamusoro uye kuderera kwakanyanya mumhuri yeZA.
ZA-27 inopa yakasimba dhizaini kuramba munzvimbo dzakasimudzwa tembiricha zvichienzaniswa
kune mamwe mabhizimisi zinc alloys. Iyo inewo yakakwira kutakura-kutakura uye kupfeka kusagadzikana.
NO.7
ACuZinc5 mhando zinc alloy
ACuZinc5 mhando zinc alloy yakagadzirwa neGeneral Motors. Nekuda kwekuwedzerwa kwayo mhangura
zvemukati uye zvakaderedzwa aluminium zvemukati, kusimba kwayo uye kuramba deformation vane
yakavandudzwa zvakanyanya. Iyo ACuZinc5 mhando zinc alloy zvakare ine yakanaka inotakura
simba.
Zinc deformation (elongation under heavy pressure) zvinoreva deformation pasi pechimwe
nguva nekumanikidzwa. Pane kazhinji nhanho nhatu dze deformation:
Kirasi 1 - Deformation padiki uye zvishoma nezvishoma kudzikira kudzvinyirira
Kirasi 2 - Yakanyanya kusimba asi yakada kuenderera deformation pasi pekumanikidzwa
Giredhi 3 - Kuwedzera kwe deformation pasi pekushushikana, kazhinji kunokonzeresa kuputsika
Iyo deformation level ye zinc alloys hunhu hunokura curvilinearly nenguva.
Semuenzaniso, iyo deformation-kudhonza reshiyo haisi kuenderera, kunyangwe pakadzika tension, uye kuzvibata
zvakasiyana panguva dzakasiyana dzenguva, nekudaro zvichikonzera ichi chinoenderera curve shanduko, saka zinc alloys
hauna kana imwe elastic modulus. nhamba. The withstand force (tension range) pasi
kuenderera mberi mutoro kunobva pane inodiwa dhizaini tension range (extension force percentage).
Iko kukosha kwekushanda kweiyo modulus ye elasticity uye huwandu hwesimba resimba rinogona kuva
yakawanikwa kubva kumagirafu eiyo telescopic deformation bvunzo uye simbi plate deformation
bvunzo yeNo. 3 alloy pane tembiricha yekamuri. Nokuti deformation zvinokosha kuti alloys No. 3 uye
Nhamba 5 iri pedyo, magirafu avo anoshanda kune zvose alloys.
Muenzaniso: a. Kana kushushikana kuri mudhizaini yekunetsana kuri 0.2% uye hupenyu hwekushanda hunodiwa makore mashanu,
tension range i15.1MPa. b. 100 mazuva uye 20.7MPa tension inoburitsa 0.1% deformation
Aya data anogona kutsiviwa muinjiniya mafomula, asi zvinofanirwa kucherechedzwa kuti iwo chete
inoshanda kune akakosha mabhengi munzvimbo dzakakosha tembiricha. Iyo pakarepo curve inomiririra
iyo yekukurumidza deformation pasi pekumanikidzwa kwakaiswa - kudzokera kune chimiro chayo chepakutanga kana kudzvanywa kuri
kubviswa. Dzimwe shanduko dzese dzemacurve dzinosanganisira kukosha uku pamwe nekukwira kunokonzera deformation yakazara.
Sezvineiwo ese maalloys, iyo yekumanikidza siyana haisi iyo chete chinhu chinoshanda pane zinc alloys, iyo inoshanda
tembiricha inogonawo kuita kuti alloy ifambe. Iyo deformation yedanho rekutanga haina mhedzisiro pane alloy
No. 3, saka deformation yechipiri nhanho inogona kushandiswa kufungidzira yose kuwedzera uye
chibvumirano che alloy, ndiko kuti, deformation yezinga rechitatu pasi penguva refu uye yakakwirira-kudzvinyirira
nharaunda. Iyo deformation, kudzvanywa, uye tembiricha hukama hwechipiri giredhi yealloys
Nhamba 3 uye Nhamba 5 inoratidzwa mumifananidzo yavo, maererano. Zvinofanira kucherechedzwa kuti giredhi rokutanga zvinokambaira
maitiro emamwe alloys akakoshawo uye haafanire kuregeredzwa.
Zinc alloys ari pasi pekuchembera, kunyanya kune tembiricha yakakwira. Miedzo yakaratidza kuti mushure memaviri
makore, iyo alloy inoderedza kukwira kwekufamba ne16% patembiricha yekamuri, pasi pekumanikidzwa kukuru,
kana pa75-95°C kwemakore matatu. Nokudaro, chikamu che 0.8 chinofanira kuwedzerwa kune simba rekudhonza.
Yakaverengwa sezvinotevera.
Uchishandisa data kubva kuAlloy No. 3, kuwedzera kwe10 ° C pakupisa kwebasa kunogona kushandiswa
fungidzira kukosha kwekugadzirisa kweAlloy No. 5. Semuenzaniso, iyo inenge yakasvibiswa mamiriro ezvinhu
yealloy Nhamba 5 ndeye 10 ° C yakakwirira kupfuura iyo yealloy Nha.
Iyo inotevera formula inogona kunyatsoverenga deformation yeNo. 3 uye ZA8 zinc alloys pakati
25°C uye 120°C:
Mune formula iri pamusoro
σ=Simba repamusoro rinoshivirika (Mpa)
T=Tembiricha (K)
t = hupenyu hwekushanda (masekondi)
n=pressure index=3.5
Q=simba rekuita =106kJ/mol=106kJ/mol
R=gasi nguva dzose=8.3143x10-3kJ/mol K
C' = nguva dzose inowanikwa kubva patafura iri pasi apa
Kushandura maconstants kuita formulas
Iyo iri pamusoro fomula inogona kuverenga iyo yakazara yekumanikidza index, tembiricha, hupenyu hwekukambaira uye kudzvinyirira index mukati me50MPa kune chero mamiriro ezvinokambaira muhuwandu hwe0.2% kusvika 1%.
Iyo dhigirii yekukambaira kweakawanda alloys haina kugadzikana. Kunyangwe masampuli maviri anoita seakafanana anogona kunge akasiyana nekuda kwehupenyu hwawo hwekukwira (yekuwedzera huwandu), saka ingave iyo data yakawanikwa muyedzo kana fomula, chimwe kana zviviri zvekuwedzera zvinhu zvakakosha zvakare. Inofanira kuverengwa maererano nemamiriro ezvinhu akasiyana.
