Nkhani

Makhalidwe a Zinc Alloys

Katundu Wofunika:

Kuchulukana kwambiri.

Makhalidwe abwino oponyera; amatha kupanga zigawo zovuta komanso zopyapyala komanso zosalala.

Yoyenera kuchiza pamwamba: electroplating, powder covering, ndi kupaka utoto.

Sichikopa chitsulo posungunuka ndi kupopera, sichiwononga chitsulocho, ndipo sichimamatira ku nkhungu.

Kapangidwe kabwino kwambiri ka makina komanso kukana kuvala kutentha kwa chipinda.

Malo otsika osungunuka (385°C), zomwe zimapangitsa kuti zikhale zosavuta kuziyika.

Mfundo Zofunika Kuzikumbukira Mukamagwiritsa Ntchito:

Kukana Kudzimbidwa Koipa

Zinthu zodetsedwa monga lead, cadmium, ndi tin zikapitirira malire okhazikika mu kapangidwe ka alloy, zimapangitsa kuti kuponyedwako kukhale kokalamba ndi kusokonekera, zomwe zimaonekera ngati kukula kwa voliyumu komanso kuchepa kwakukulu kwa mphamvu zamakanika—makamaka pulasitiki—ndipo zitha kubweretsa kusweka pakapita nthawi. Lead, tin, ndi cadmium zimakhala ndi kusungunuka kochepa kwambiri mu zinc alloys ndipo motero zimakhazikika pamalire a tirigu, zimagwira ntchito ngati ma cathode, pomwe yankho lolimba lolemera mu aluminiyamu limagwira ntchito ngati anode. Pakakhala nthunzi yamadzi (electrolyte), izi zimapangitsa kuti intergranular electrochemical corrosion ikule. Zigawo zotayidwa zimakalamba chifukwa cha intergranular corrosion.

Zotsatira za Ukalamba

Kapangidwe kakang'ono ka zinc alloys kamakhala ndi mayankho olimba okhala ndi zinc okhala ndi Al ndi Cu, ndi mayankho olimba okhala ndi Al okhala ndi Zn. Kusungunuka kwawo kumachepa kutentha kukatsika. Komabe, chifukwa cha kuchuluka kwamphamvu kwa zinthu zotayidwa mwachangu, kusungunuka kwa mayankho olimba awa kumadzaza kwambiri nthawi yomwe gawolo limafika kutentha kwa chipinda. Pambuyo pa nthawi inayake, kusungunuka kumeneku kumachepa pang'onopang'ono, zomwe zimapangitsa kusintha pang'ono mawonekedwe ndi kukula kwa kutayidwako.

Kuchepa kwa Kutentha

Zinc alloy die-castings siziyenera kugwiritsidwa ntchito pamalo ogwirira ntchito otentha kwambiri kapena otsika kutentha (pansi pa 0°C). Zinc alloys zimakhala ndi mphamvu zabwino zamakaniko kutentha kwa chipinda. Komabe, mphamvu yokoka imachepa kwambiri kutentha kwambiri, ndipo mphamvu yokoka imachepa kwambiri kutentha kochepa.

Mitundu ya Zinc Alloys

Mtundu wa aloyi	Makhalidwe ndi Mapulogalamu
Zamak 3	Kusinthasintha kwabwino komanso mphamvu zamakina. Amagwiritsidwa ntchito popanga zinthu zotayidwa zomwe sizikufuna mphamvu zambiri zamakina, monga zoseweretsa, magetsi, zinthu zokongoletsera, ndi zida zina zamagetsi.
Zamak 5	Kusinthasintha kwabwino komanso makhalidwe abwino kwambiri a makina. Amagwiritsidwa ntchito popanga zinthu zokhala ndi mphamvu zochepa za makina, monga zida zamagalimoto, zida zamagetsi, zida zamagetsi, ndi zida zamagetsi.
Zamak 2	Amagwiritsidwa ntchito pazigawo zamakina zomwe zili ndi zofunikira zapadera pakugwira ntchito kwamakina, zofunikira kwambiri pakuuma, komanso zofunikira pakulondola kwamitundu yonse.
ZA8	Kusinthasintha kwabwino komanso kukhazikika kwa magawo, koma kusinthasintha kochepa. Kumagwiritsidwa ntchito popanga zida zazing'ono zogwirira ntchito zokhala ndi kulondola kwakukulu komanso mphamvu zamakanika, monga zida zamagetsi.
Superloy	Kusinthasintha kwabwino kwambiri, komwe kumagwiritsidwa ntchito popanga zinthu zogwirira ntchito zokhala ndi makoma opyapyala, akuluakulu, olondola kwambiri, komanso ooneka ngati zovuta, monga zida zamagetsi ndi malo ozungulira.

Ma alloy osiyanasiyana a zinc ali ndi mawonekedwe osiyana komanso amakina, zomwe zimapangitsa kuti mapangidwe a ziwalo zotayidwa zisinthe mosavuta.

Chachitatu

Kusankha Zinc Alloys

Kusankha kwa aloyi wa zinc kumatsimikiziridwa makamaka ndi zinthu zitatu:

Cholinga cha kugwiritsa ntchito gawo lopangidwa ndi die-cast ndi zofunikira pakugwira ntchito.

(1) Katundu wa Makina

Mphamvu yokoka, yomwe ndi kukana kwakukulu kwa chinthu chisanasweke; kutalika, komwe kumayesa kulimba pakati pa kufooka ndi kusinthasintha; ndi kuuma, komwe ndi kukana kwa pamwamba pa chinthucho ku kusintha kwa pulasitiki komwe kumachitika chifukwa cha kupindika kapena kukangana kuchokera ku chinthu cholimba.

(2) Mikhalidwe ya Malo Ogwirira Ntchito

Kutentha kogwirira ntchito, chinyezi, malo olumikizirana omwe chitolirocho chimakumana nacho, ndi zofunikira pa mpweya wabwino.

(3) Zofunikira Zolondola

Kulondola komwe kungatheke komanso kukhazikika kwa magawo.

Kuthekera Kwabwino Kogwirira Ntchito

(1) Njira yoponyera

(2) Kutha kugwira ntchito

(3) Kuthekera kwa mankhwala pamwamba

Kukhazikika Kwabwino Pazachuma

Ndalama zopangira ndi zofunikira pa zipangizo zopangira (kuphatikizapo zida zosungunulira, makina odulira, nkhungu, ndi zina zotero), komanso ndalama zopangira.

Kulamulira kwa Zinc Alloy Composition

Kapangidwe ka Aloyi Wokhazikika

Chinthu	Zamak 2	Zamak 3	Zamak 5	ZA8	Superloy	AcuZinc 5
Aluminiyamu	3.8 ~ 4.3	3.8 ~ 4.3	3.8 ~ 4.3	8.2 ~ 8.8	6.6 ~ 7.2	2.8 ~ 3.3
Mkuwa	2.7 ~ 3.3	<0.030	0.7 ~ 1.1	0.9 ~ 1.3	3.2 ~ 3.8	5.0 ~ 6.0
Magnesium	0.035 ~ 0.06	0.035 ~ 0.06	0.035 ~ 0.06	0.02 ~ 0.035	<0.005	0.025 ~ 0.05
Chitsulo	<0.020	<0.020	<0.020	<0.035	<0.020	<0.075
Mtsogoleri	<0.003	<0.003	<0.003	<0.005	<0.003	<0.005
Kadimumu	<0.003	<0.003	<0.003	<0.005	<0.003	<0.004
Chitini	<0.001	<0.001	<0.001	<0.001	<0.001	<0.003
Zinki	zotsala	zotsala	zotsala	zotsala	zotsala	zotsala

Nthawi yotumizira: Epulo-23-2026

(Zina mwa zomwe zili patsamba lino zatulutsidwa kuchokera pa intaneti, zatulutsidwanso kuti zipereke zambiri. Timalemekeza zoyambirira, ufulu wa olemba ndi wa wolemba woyamba, ngati simungapeze kumvetsetsa kwa chiyembekezo, chonde lemberani kuti muchotse!)