Ubuchwepheshe Bokususwa Kokungcola Kwenqubo Yesibili Yokuncibilikisa i-Aluminium

Inqubo yokukhiqizwa kwe-alloyum alloy yesibili ingahlukaniswa ngezigaba ezintathu: ukwelashwa kwangaphambili, ukuncibilikisa (kufaka phakathi ukucwenga), nokufakwa kwe-ingot. Inqubo yokuncibilikisa ukufaka i-scrap aluminium esithandweni sokuncibilikisa bese uyishisisa ukuze incibilike ibe wuketshezi. Ngemuva kokugcotshwa, ukukala kwamazinga okushisa nokwakheka Ukuhlolwa nezinye izinqubo kudluliselwa esithandweni sokucwenga, lapho kunezelwa izinto ezinjenge-silicon nethusi, futhi kwenziwa inqubo ye-degassing, ukususa i-slag nokucwengisisa. Izakhi zensimbi eziyingozi ku-aluminium yesibili ziyancibilika ikakhulukazi zifaka i-Fe, Mg, Zn, Pb, njll. Ngezakhi ezahlukahlukene zensimbi eziyingozi, izindlela ezahlukahlukene zokususa zidinga ukwamukelwa.

1.Insimbi Yokususa Ubuchwepheshe

I-Iron iwumagazini ovamile ekukhiqizeni i-aluminium yesibili, enomphumela omubi ngokwedlulele kwikhwalithi nokusebenza kwama-alloys e-aluminium kanye ne-aluminium. Ngakho-ke, ngaphezu kokufakwa kabusha kwe-scrap aluminium ukususa insimbi, ukufakwa kwensimbi kufanele kususwe ngangokunokwenzeka ngesikhathi senqubo yokuncibilikisa ukuvimbela ukuthi incibilike kancane ku-aluminium ne-aluminium alloy melt. Ngokuvamile, izindlela ezilandelayo zisetshenziselwa ukususa ukufakwa kwensimbi.

1.1 Indlela Yokususa I-Manganese Nensimbi

I-Manganese ingakha ngempumelelo indawo yokuncibilika kwesigaba esine-iron-rich solution kusixazululo se-aluminium alloy bese idiphozi ngaphansi kwesithando somlilo ukufeza inhloso yokususwa kwensimbi. Izenzo ezenzekayo zimi kanje:

I-Al9Fe2Si2 + Mn → AlSiMnFe

Inani le-manganese elisetshenzisiwe ukususa i-1kg yensimbi lingu-6.7-8.3kg, futhi lingaguqula isigaba esisele, esimbaxa, esinzima nesiminyaminya se-Al9Fe2Si2 esigabeni se-AlSiMnFe esintekenteke, ngaleyo ndlela sinciphise imiphumela eyingozi yensimbi. Kodwa-ke, indlela yokwengeza i-manganese ukususa i-iron izokwandisa okuqukethwe kwe-manganese kwe-aluminium alloy. Ama-alloys e-aluminium anokuqukethwe okulinganiselwe kwe-manganese akufanele asetshenziswe, futhi izindleko zendlela yokwengeza i-manganese ukususa i-iron iphezulu kakhulu.

1.2 Ukungeza iBeryllium KuNdlela Yokususa Insimbi

IBeryllium iphendula ngesigaba se-Al9Fe2Si2 ku-aluminium alloy melt, ngaleyo ndlela inciphise imiphumela eyingozi yensimbi. Ukusabela kanje: Al9Fe2Si2 + Be → Al5BeFeSi

Ukungeza u-0.05% -0.1% we-beryllium ku-aluminium kanye ne-aluminium alloy melts kungakhuthaza ukuguqulwa kwesigaba se-coarse flake Al9Fe2Si2 sibe yi-Al5BeFeSi emise amachashazi, okusobala ukuthi isusa ubulukhuni be-aluminium alloy. Kodwa-ke, intengo ye-beryllium iphezulu kakhulu, futhi umusi we-beryllium unobuthi, uyingozi emzimbeni womuntu, futhi ungcolisa indawo yokusebenza. Ngakho-ke, indlela yokwengeza i-beryllium ensimbi kufanele isetshenziswe ngokuqapha.

1.3 Ukusetha Indlela Yokususa Insimbi

Indlela yokususa insimbi yensimbi ingumphumela ophelele we-multi-element master alloy elungiswe ngezinto ezine ze-Mn, Cr, Ni ne-Zr, ehlangana nenhlanganisela ecebile yensimbi ku-aluminium alloy melt ukwenza into entsha eningi insimbi ehlanganiswe ngensimbi. I-multi-element iron-rich compound ikhula kancane kancane njengoba izinga lokushisa lincipha. Lapho ikhula inkulu ngokwanele ukunqoba ukumelana nendawo yokuhlala, izolungisa futhi isuse i-ayoni. Lapho inani le-Mn, i-Cr, i-Ni ne-Zr liyi-2.0%, i-0.8%, i-1.2%, ne-0.6%, ngokulandelana, okuqukethwe kwensimbi ku-aluminium ne-aluminium alloy kuyancibilika okuphathwa yindlela yokususa insimbi kungancishiswa kusuka ku-1 % Ku-0.2%. I-Manganese idlala indima enkulu ekususeni i-ayoni ngendlela ye-sedimentation. Yize i-chromium ingafani neze ne-manganese ekususeni i-iron, inokumelana kangcono ne-oxidation nokutubeka. Inhloso enkulu yokwengeza i-nickel ukunciphisa ukuqina okubangelwa izinsalela ze-manganese ne-chromium. Ukwengezwa kwe-zirconium akukwazi ukudlala indima yensimbi kuphela, kepha futhi kunendima yokulungiswa kokusanhlamvu.

1.4 Ukuhlunga kanye Nendlela Yokukhishwa Kwensimbi

Indlela yokuhlunga yokususa i-ayoni isuselwa kumgomo wokuthi ukungcola kwesigaba esine-iron ku-aluminium alloy kuncibilike ukwahlukaniswa emazingeni okushisa aphansi nesikhathi esinde sokubamba, futhi ukuhlunga ngomshini kusetshenziselwa ukususa izinto ezihlanganisiwe zensimbi ezicebile. Indlela yokukhipha insimbi yokuhlunga ivame ukwenziwa lapho kuthululwa ukuncibilika. Ayikwazi ukususa kuphela izinto zesigaba ezinothe ngensimbi enkulu, kepha futhi ingasusa okunye ukufakwa okungusayizi omkhulu ku-aluminium ne-aluminium alloy melts. Indlela yokuhlunga insimbi yokususa imvamisa isebenzisa ipuleti lokuhlunga le-foam Ceramic.

1.5 Ukuncibilikisa Indlela Yokukhipha Insimbi Eqondile

Indlela eqondile yokususa insimbi ngokuncibilikisa isetshenziswe kabanzi embonini yesibili ye-aluminium ngenxa yezindleko zayo eziphansi nokusebenza okulula. Indlela ichazwe kafushane ngale ndlela elandelayo:

• (1) Lawula ngokuqinile ukushisa okuncibilikayo, sebenzisa umehluko phakathi kwamaphuzu okuncibilika kwe-aluminium nensimbi ukuze uncibilikise i-aluminium, futhi insimbi nokunye ukungcola okuphezulu kwensimbi kuxazululeke phansi kwesithando, ngaleyo ndlela kususwe insimbi. Isithando sokujikeleza esithandekayo singacubungula kahle isithando somlilo se-aluminium sokuncibilikisa.
• (2) Ngesikhathi sokuncibilikisa, imfucumfucu yensimbi kufanele isuswe ngaphambi kokunyakazisa ngakunye, futhi insimbi exutshwe neslag aluminium kufanele ikhishwe ngesikhathi sokususwa kwe-slag.
• (3) Ngokuya ngezimo zangempela zezinto zokuncibilikisa ezikhethiwe nobuchwepheshe, empeleni, kuyo yonke inqwaba yemfucumfucu ye-aluminium encibilikisiwe, i-slag nensimbi ehlala ngaphansi kwesithando kufanele kukhishwe.
• (4) Lapho ibhizinisi lesibili le-aluminium lisebenzisa isithando sokuncibilikisa-isithando sokubamba ukukhiqiza, ngemuva kokuncibilikisa isithando somlilo ngasinye, kuthunyelwa i-aluminium encibilikisiwe esithandweni somlilo ukuze kususwe insimbi isesimweni esishisayo.
• (5) Sebenzisa ukuncibilika okusheshayo nokushisa okuphansi kwe-aluminium ngokuthepha. Ngesikhathi sokuncibilikisa, okusalungiswa okwenziwe kabusha kwe-aluminium kuncibilikiswa ngokushesha ngaphansi kokuvikelwa kwe-solvent, futhi yonke inqubo yokuncibilika icishe ibe ngamahora ama-2-3. Lapho okusalungiswa okwenziwe kabusha kwe-aluminium kuncibilika, izinga lokushisa lokuncibilika ngalesi sikhathi cishe liyi-650 ° C. Kuleli zinga lokushisa, ukuncibilika kwensimbi ku-aluminium ne-aluminium alloy kuyancibilika kuncane kakhulu. Ngalesi sikhathi, i-ayina equkethwe kusigaxa se-aluminium esetshenzisiwe isele eslagini futhi icacile nge-slag.

2.Imagnesium Removal Technology

I-Magnesium nayo ingukungcola okuvamile ekukhiqizeni i-aluminium yesibili. Izindlela ezilandelayo zivame ukusetshenziselwa ukususa i-magnesium ekuncibilikeni kwe-aluminium.

2.1 Indlela Yokususa I-Magnesium Ngokuxhuma

Ukususwa kweMagnesium nge-oxidation kusekelwe esimisweni sokuthi ukusondelana kwe-magnesium ne-oxygen kukhulu kunezinye izinsimbi. Ngesikhathi senqubo yokuncibilikisa, i-magnesium iqala iphendule ngokuqinile nge-oxygen, futhi ama-oxide ayo awancibiliki ku-aluminium ne-aluminium alloy iyancibilika bese iyantanta phezulu, bese iphakama kuma-alloys e-aluminium ne-aluminium. Ingaphezulu lokuncibilika lisikiwe. Ukuze kusheshiswe inqubo ye-oxydation ye-magnesium, amathuluzi angasetshenziswa ukugqugquzela ukuncibilika kwe-aluminium ne-aluminium alloy. Umphumela wendlela ye-oxidation ukususa i-magnesium iyanda ngokwandiswa kwesikhathi esivusa amadlingozi, kepha le ndlela ibuye ibangele ukushiswa komlilo ne-oxidation kwe-aluminium, i-silicon nezinye izinto ngenkathi kususwa i-magnesium, futhi ngokuvamile ayifanele ukusetshenziswa.

2.2 Indlela Yokususa i-Magnesium Chloride

Ekukhipheni i-magnesium ekuncibilikeni kwe-aluminium yesibili, i-chlorine ivame ukusetshenziswa njenge-oxidant ukuphendula ngezinsimbi ezisebenzayo njenge-magnesium ekuncibilikeni ukuze yenze ama-chloride. Ngoba i-magnesium inokusondelana okukhulu kwe-chlorine kune-aluminium, lapho i-chlorine idlulela ku-aluminium ne-aluminium alloy iyancibilika, kwenzeka lokhu kuphendula kwamakhemikhali okulandelayo:

• Mg + Cl2 == MgCl2
• 2Al+3Cl2==2AlCl3
• 3Mg+2AlCl3==3MgCl2+2Al

I-magnesium chloride ekhiqizwayo ichithwa ungqimba lwe-solvent, futhi ukusabela kwegesi ye-magnesium ne-chlorine kukhipha ukushisa okukhulu, okushisa i-aluminium ne-aluminium alloy melt.

Umphumela wokususa i-magnesium wendlela yokususa i-chlorination magnesium ubonakala kakhulu, onganciphisa okuqukethwe kwe-magnesium ku-aluminium ne-aluminium alloy kuncibilika kuye ku-0.3% -0.4%, futhi kulula ukusebenza. Ngasikhathi sinye, inemisebenzi yokususa i-degassing nokususwa kwe-slag, kepha i-chlorine yizinto ezinobuthi kakhulu, ukulimala kwempilo yabantu kanye nemvelo kukhulu, futhi i-aluminium ne-aluminium alloy iyancibilika ngemuva kokususwa kwe-magnesium yi-chlorine gas inendawo okusanhlamvu, nezici zemishini ziyancipha.

2.3 Ukususwa Kukholomu Kasawoti Kwendlela Ye-Magnesium

Usawoti we-chloride osetshenziswa kakhulu ukususwa kwe-magnesium kusuka ku-aluminium secondary melts yi-aluminium chloride. Le ndlela isebenzisa ingcindezi ethile ye-nitrogen ukufafaza i-aluminium chloride ibe yi-aluminium ne-aluminium alloy encibilikayo, ukuze i-aluminium chloride ne-magnesium zisabele ngokulandelayo:

2AlCl3+3Mg==3MgCl2+Al

Ngokwale ndlela, i-chlorine ayiphunyeli emkhathini, futhi i-aluminium chloride engaphenduliwe ithathwa yilezi zincibilikisi ze-sodium chloride kanye ne-potassium chloride. Le ndlela inganciphisa okuqukethwe kwe-magnesium kwe-aluminium ne-aluminium alloy kuncibilika ngo-0.1-0.2%.

2.4 Indlela Yokususa i-Cryolite Magnesium

I-Cryolite iphendula nge-magnesium ukukhiqiza izinhlanganisela ezingancibiliki ku-aluminium ne-aluminium alloy ziyancibilika futhi zisuse i-magnesium. I-Cryolite ishibhile futhi itholakala kalula, ukuze indlela yokususa i-magnesium kusuka ku-cryolite isetshenziswe kabanzi embonini ye-aluminium yesibili. I-Cryolite ne-magnesium yenza lokhu kuphendula kwamakhemikhali okulandelayo ku-aluminium ne-aluminium alloy iyancibilika:

3Na3AlF6+3Mg==2Al+6NaF+3MgF2

Ukusetshenziswa kwemfundiso yenkolo ye-cryolite yi-6kg / kg-Mg, kanti ukusetshenziswa kwangempela kuyizikhathi eziyi-1.5-2 zokusetshenziswa kwemfundiso. Izinga lokushisa lokuphendula lingu-850-900 ℃, elinganciphisa okuqukethwe kwe-magnesium ku-0.05%. Ukuze kuncishiswe izinga lokushisa lokususa i-magnesium ku-cryolite, i-cryolite equkethe i-40% NaCl ne-20% KCl ifafazwa ebusweni bencibilika.

3. Ubuchwepheshe Bokususa iZinc, Ukuhola, Njll

Indlela yokukhipha i-chlorination ne-zinc ingasetshenziswa ukususa i-zinc ku-aluminium ne-aluminium alloy melts. Le ndlela isebenzisa umgomo wokuthi i-zinc inobudlelwano obukhulu be-oxygen kune-aluminium. Ngesikhathi senqubo yokuncibilikisa, kusetshenziswa amathuluzi ukuvuselela i-aluminium ne-aluminium alts ukuncibilika ukukhuthaza ukusabela kwe-zinc nge-oxygen, ngaleyo ndlela kufezekiswe injongo yokususwa kwe-zinc. Umphumela ulinganiselwe kakhulu, futhi phakathi nenqubo yokususa i-zinc, kulula ukudala ukushiswa kwe-oxidative kwe-aluminium nezinye izinto. Kuzodala nokuthi ukuncibilika kwe-aluminium ne-aluminium alloy kuthole igesi futhi kukhiqize inani elikhulu lokufakwa. Ngokuvamile, akunconyelwe ukusebenzisa ukususwa kwe-zinc okizing.

Indlela yokwenziwa kwe-sedimentation isetshenziselwa ukususa ukungcola okusindayo okusansimbi njenge-zinc nomthofu ku-aluminium ne-aluminium alloy iyancibilika. Indlela yokwenziwa kwe-sedimentation ukwelula isikhathi sokuma kwe-aluminium ne-aluminium alloy ancibilike, kusetshenziswa umgomo wokuqina okukhulu kwe-zinc nomthofu, ukuze i-zinc nomthofu kungacwila phansi kwesithando somlilo ngesikhathi sokuncibilikisa; ukugeleza okusimeme okuzinzile ngesikhathi sokukhipha kungenza izinsimbi ezisindayo njenge-zinc nomthofu Okokuqala, kuyaphuma futhi kunamathele kuma-ingots ambalwa okuqala athululwayo, futhi lezi zingodo zingakhethwa ukuze zelashwe ngokwengeziwe.

Indlela ye-elution crystallization nayo ingasetshenziselwa ukususa ukufakwa kwensimbi okungeyona eye-aluminium. Le ndlela yokuhlanza i-aluminium ne-aluminium alloy iyancibilika isuselwa esimisweni sokuthi ukuncibilika kokufakwa kwensimbi okungeyona i-aluminium ku-aluminium encibilikayo kuyashintsha ngesikhathi sokupholisa. Kodwa-ke, indlela yokwehliswa kwe-crystallization inezindleko eziphezulu nokusebenza okuyinkimbinkimbi, futhi ayivamisile ukusetshenziswa embonini enkulu ye-aluminium yesibili.

Akunandaba ukuthi iyiphi indlela esetshenziswayo ukususa ukufakwa kwensimbi okungeyona i-aluminium ku-aluminium ne-aluminium alloy kuyancibilika, kuzokhuphula izindleko zokukhiqiza ze-aluminium yesibili. Ukwenza ngcono isilinganiso sokusetshenziswa esiqondile se-aluminium ne-aluminium alloy scrap, okwenza ukusetshenziswa okugcwele nokunengqondo kwezinto ezibalulekile ku-aluminium ne-aluminium alloy scrap, nokukhetha inqubo eshiwo ngenhla futhi esebenza kahle yokwelashwa kwangaphambili inokubaluleka okubaluleke kakhulu ekukhiqizeni i-aluminium esetshenzisiwe kabusha.

4.Ubuchwepheshe Bokususa I-Sodium, Potassium, Hydrogen, Calcium, njll.

Amazwe angaphandle athuthukise ubuchwepheshe be- "LARS" obuncibilikisayo kwi-inthanethi, obungakhiqiza ama-ingots asezingeni eliphakeme e-aluminium ye-aerospace kanye ne-aviation enezidingo zokuhlanzeka okuphezulu. Lobu buchwepheshe busesikhundleni esiphambili emhlabeni. Izici zayo ezibalulekile yilezi:

• (1) Izinga lokuphuma liphezulu. Ukusetshenziswa kwale mishini kunganciphisa okuqukethwe kwe-hydrogen okuku-inthanethi okuncibilikayo kusuka ku-0.39mL / 100 × 10-6 kuye ngaphansi kuka-0.1mL / 100g, futhi isilinganiso sokukhishwa kwemali singafinyelela ngaphezu kuka-75%.
• (2) Susa ngempumelelo ukungcola kwensimbi nokungekhona okwensimbi.
• (3) Susa ngempumelelo izinsimbi ze-alikhali, yenza i-K +, Ca +, Li +, Na + ions namanye ama-ion ensimbi angaphansi kuka-1 × 10-6 ngemuva kokusetshenziswa; khipha ngempumelelo izinhlanganisela ezahlukahlukene.

Ngemuva kokusetshenziswa, umkhiqizo udlulise imboni ye-American Aerospace Class A noma i-AA nokutholwa kwephutha. Isibonelo, i-7075 alloy inezinga lokulawulwa kwamaphutha le-Class A elingu-97%, kanye nezinga lokulawulwa kwamaphutha le-Class AA elingu-92%.

UMinghe Inkampani yeDie Casting Ingabe umkhiqizi wangokwezifiso wokuphonsa okunembile nokungasebenzi. Imikhiqizo ifaka i-aluminium & i-zinc die castings. Aluminium die castings ayatholakala kuma-alloys afaka ama-380 & 383. Imininingwane ibandakanya ukubekezelelana kwe-plus / - 0.0025 kanye nesisindo esikhulu sokubumba esingu-10 lbs. Izinki kufa izingxenye zokuphonsa ayatholakala kuma-alloys ajwayelekile afana neZamak no. 3, uZamak no. 5 & ​​Zamak akukho. Ama-alloys angama-7 nama-hybrid afana neZA-8 & ZA-27. Imininingwane ibandakanya ukubekezelelana kwe-plus / - 0.001 kanye nesisindo esikhulu sokubumba esingu-4.5 lbs.

Sicela ugcine umthombo nekheli lale ndatshana ukuze uphinde uprintwe: Ubuchwepheshe Bokususwa Kokungcola Kwenqubo Yesibili Yokuncibilikisa i-Aluminium

UMinghe Inkampani yeDie Casting anikezelwe ekukhiqizeni nasekuhlinzekeni ikhwalithi nokusebenza okuphezulu Izingxenye Zokulingisa (izingxenye zensimbi zensimbi zokufa zisebenza ikakhulukazi zibandakanya I-Thin-Wall Die Casting,I-Hot Chamber Die Casting,Cold Chamber die Casting), Insizakalo Eyindilinga (Insiza Yokulingisa,ICnc Machining,Ukwenza Okubandayo, Surface Treatment) .Noma ikuphi ukusakazwa kwe-Aluminium die, i-magnesium noma i-Zamak / zinc die casting nezinye izidingo zokuphosa zamukelekile ukuxhumana nathi.

Ngaphansi kokulawulwa kwe-ISO9001 ne-TS 16949, Zonke izinqubo zenziwa ngamakhulu emishini esezingeni eliphakeme yokufa, imishini ye-5-axis, nezinye izikhungo, ezisukela kuma-blasters kuya kumishini yokuwasha ye-Ultra Sonic.Minghe akagcinanga ngemishini esezingeni eliphezulu kepha futhi unobuchwepheshe iqembu lonjiniyela abanolwazi, ama-opharetha nabahloli ukwenza ukwakheka kwekhasimende kugcwaliseke.

Umenzi wenkontileka yokufa kwabasikiwe. Amandla afaka izingxenye ezibandayo ze-aluminium die casting ezivela ku-0.15 lbs. kuye ku-6 lbs., Ukusetha ushintsho olusheshayo, nemishini. Izinsizakalo ezingezwe ngenani zifaka phakathi ukupholisha, ukudlidliza, ukuphazamisa, ukuqhumisa ngokudubula, ukupenda, ukuhlobisa, ukumboza, ukuhlangana nokusetshenziswa kwamathuluzi. Izinto zokusebenza ezisetshenzisiwe zifaka ama-alloys afana no-360, 380, 383, no-413.

I-Zinc die casting design usizo / izinsizakalo zobunjiniyela ezihambisanayo. Umenzi wangokwezifiso we-precision zinc die castings. Ukusakazwa okuncane, ukukhishwa kwengcindezi ephezulu, ukusikeka kwesikhunta esiningi, ukujikijelwa kwesikhunta okuvamile, ukufefa kwamayunithi kanye nokuzimela okuzimele kanye nokuvalwa okuvaliwe komgodi kungenziwa. Ama-Castings angenziwa ngobude nobubanzi obufinyelela ku-24 in. Ku +/- 0.0005 in. Ukubekezelelana.  

I-ISO 9001: Umkhiqizi oqinisekisiwe ka-2015 we-die cast magnesium, Amandla afaka i-high-pressure magnesium die casting up to 200 ton chamber hot & 3000 ton cold chamber, designing designing, polishing, molding, machining, powder & liquid paint, QA full with CMM amakhono , inhlangano, ukupakisha nokulethwa.

Kuqinisekiswe i-ITAF16949. Insiza Eyengeziwe Yokulingisa Faka ukukhipha utshalomali,ukuphonsa kwesihlabathi,Ukuphonswa kwamandla, Lost Foam Ekubunjweni,I-Centrifugal Casting,Ukuphoswa Kokuqothula,Permanent Isikhunta Ukulingisa, Amakhono afaka i-EDI, usizo lobunjiniyela, ukumodeliswa okuqinile nokucutshungulwa kwesibili.

Izimboni Zokulingisa Izingxenye Zamacala Ezifundo Zezimoto: Izimoto, Amabhayisikili, Izindiza, Izinsimbi Zomculo, I-Watercraft, Amadivayisi we-Optical, Izinzwa, Amamodeli, Amadivayisi we-elekthronikhi, Ukuvaleka, Amawashi, Imishini, Izinjini, Ifenisha, Ubucwebe, AmaJig, Telecom, Ukukhanyisa, Amadivayisi Wezokwelapha, amadivayisi wezithombe, Amarobhothi, okubaziwe, okokusebenza komsindo, okwezemidlalo, i-Tooling, Amathoyizi nokuningi. 

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By Umkhiqizi weMinghe Die Casting | Izigaba: Izindatshana Eziwusizo |Material Omaka: I-Aluminium Casting, Zinc Ukulingisa, Ukulingiswa kweMagnesium, I-Titanium Casting, Insimbi Engagqwali, Brass Ekubunjweni,Ukulingiswa kweBronze,Isakaza ividiyo,Umlando wenkampani,I-Aluminium Die Casting | Amazwana Off