Moralo oa shoa le ts'ebetso ea ho lahla ea zinc alloy die die

Moralo oa jiometri bakeng sa taolo ea boleng ba bokaholimo ba zinc alloy cast cast

Ka moralo oa zinki motsoako lahla geometry, ka hohle kamoo ho ka khonehang ho qoba foufetseng lesoba botebo concave le mehaho e meng, ka hona, ka moralo karolo, ha e ama ponahalo le tšebeliso ea karolo, drainage tshebetso lesoba loketseng tharollo, khase. Ka tsela ena, tharollo ea plating e ka tšeloa ka nepo mme tekanyo ea tšilafalo e ka fokotsoa.

Moralo oa shoa le ts'ebetso ea ho lahla ea zinc alloy die die

Bokaholimo ba zinki alloy die casting ke lera le botenya bo ka bang 0.1 mm, 'me karolo e ka hare ke sebopeho sa porous. Ts'ebetsong ea moralo oa lefu le ho lahlela lefu, bokaholimo ba mosebetsi bo lokela ho ba boreleli ka hohle kamoo ho ka khonehang, 'me mefokolo ea ho lahla joalo ka mapetsong, li-blowholes, likheo tse batang, burr le burr li lokela ho fokotsoa.

Ka hona, hoa hlokahala ho etsa tlhoekiso ea mochini. Ka nako ena, bokaholimo ba lera le letenya le lokela ho qojoa, e le ho qoba ho pepesa matrix a porous, ho baka mathata ho electroplating le ho ama boleng ba electroplating. Moemeli oa ho lokolla hangata o sebelisoa ho li-zinc alloy die casting. Tlhokomelo e lokela ho lefshoa ho sebelisoa ha moemeli oa tokollo le ho theola.

Khetho ea thepa ea li-zinc alloy die castings

Lisebelisoa tse sebelisoang ka tloaelo tsa zinc alloy ke: 2znal43, 2znal41, 2znal40.5, 2znal4, lihlahisoa tse sebelisoang haholo tsa znal925 le znal903, empa znal903 e molemo ho feta znal925.

Ho phaella moo, karolo ea thepa ea ho khutlisa e atisa ho sebelisoa ho lahla lefu, karolo e lokela ho laoloa ho 15%, ka ho khetheha e se ke ea feta 20%. Hobane ho bonolo ho kenngoa ka lisebelisoa tse ling (tse kang silicon), ho khomarela ha seaparo ho ameha. Bakeng sa li-castings tse nang le maikutlo a mangata, ho molemo ho sebelisa hydrofluoric acid bakeng sa phekolo ea activation nakong ea electroplating.

Tlhahlobo e se nang letho ea li-cast alloy die castings pele ho electroplating

1 Ho fumana hore na bofokoli bona bo bokae, haeba bo ka tlosoa ka mekhoa ea mechine (ho belisa, ho belisa, joalo-joalo), mokhoa oa ho sila o ka eketsoa.

(2) Tlhahlobo ea lintho tse bonahalang: lekola sehlopha sa alloy ea zinki, utloisisa karolo ea lisebelisoa tse khutlisitsoeng, hlahloba boleng ba likarolo tsa ho lahla, beha sesebelisoa ka ontong ho 100 ~ 110. ℃ bakeng sa 30min, 'me u hlahlobe hore na bokaholimo bo hlahella.