Ƙarfe gyare-gyareƘarfafawaPowder MetallurgyƘarfafawaGame da Mu

• Foda kafa shi ne mataki na biyu na foda karfe. Yanayi ne wanda ake yin sako-sako da foda a cikin billet mai siffa, girma, yawa da ƙarfi.

• Foda ta hanyar tsari don samun siffar da aka ba da kuma ƙarfin jikin foda, wanda ake kira m.

Akwai hanyoyi da yawa na yin foda, ban da hanyar gyare-gyare na yau da kullun, sauran kuma ana rarraba su azaman hanyoyin ƙirƙirar na musamman. Mutuwar kafa ita ce hanya mafi mahimmanci.

rashin kafawar latsa - simintin ɓangarorin ɓangaren litattafan almara - sako-sako da sintiri

Ana amfani da matakai masu zuwa don siffanta kayan: matsa lamba, mutu, zafi, isostatic, mirgina, centrifugal, extrusion, da fashewa.

• Dabarun ƙira na musamman;

• gyare-gyare na yau da kullum;

• pretreatment foda;

• ka'idar danniya

Pretreatment foda ya ƙunshi annealing, nunawa, hadawa, granulating, da kuma ƙara man shafawa, da sauran abubuwa.

Mutuwar foda ta yau da kullun

Die forming shine mafi yadu amfani da foda kafa dabara. Yana nufin hanyar loda foda daidai gwargwado a cikin rufaffiyar yumɓu a cikin wani adadi mai yawa a yanayin zafin ɗaki, sannan a danna shi a cikin billet tare da takamaiman matsa lamba ta latsa.

Wannan tsari na ƙirƙira yawanci ya ƙunshi matakai masu zuwa: auna foda, cika foda, latsawa, riƙe da matsa lamba da tsiri.

Ka'idar yin gyare-gyare

(1) Yi amfani da mold don ba foda nau'in da ake so.

(2) Samar da jiki a daidai girmansa.

(3) Ƙayyade mahimmin porosity na billet da nau'in porosity.

(4) Samar da jiki da daidai adadin ƙarfi da yawa don sarrafawa.

Hanyar latsawa

Latsawa ta Unidirectional: maƙarƙashiya ta mutu kuma ƙananan naushin baya motsawa, kuma naushin na sama yana latsawa gaba ɗaya.

Hanya biyu kafinssing: an gyara maƙarƙashiyar mutuwa, kuma ana danna naushi na sama da na ƙasa a lokaci guda tare da matsi daidai da akasin haka.

Matsa ruwa mai iyo: ƙananan naushi yana gyarawa, maƙalliAve die yana goyan bayan maɓuɓɓugan ruwa, Silinda, Silinda, da dai sauransu, kuma yana iya iyo bayan an damu.

Tsarin latsawa

Ana iya raba tsarin latsawa zuwa matakai huɗu:

(1) Barbashi na foda suna motsawa, ramukan suna raguwa, kuma barbashi suna matse juna;

(2) Ana matse foda sosai, kuma an cika ƙananan ɓangarorin a cikin rata tsakanin manyan ɓangarorin, kuma ƙwayoyin sun fara lalacewa;

(3) An danna maɓalli da juzu'i na saman ɓangaren foda kuma an haɗa su cikin yanayin lamba mai ƙarfi;

(4) Aiki hardening na foda barbashi zuwa iyaka jihar, kara kara matsa lamba, da foda barbashi da aka lalace da crystallization ne mai ladabi.

Dangantaka tsakanin taurin karfe foda da matsa lamba

Tasirin tsarkin foda

Saboda tsari daban-daban na yin foda, tsarkin foda ba ɗaya ba ne, kuma foda ya ƙunshi ƙayyadaddun ƙazanta. Abubuwan da ke cikin foda galibi suna cikin nau'in oxides na ƙarfe.

Ƙarfe oxide foda galibi yana da wuya kuma yana gatsewa, kuma ana rarraba shi akan saman foda na ƙarfe, wanda ke ƙara juriya kuma yana lalata aikin latsawa.

The manufacturability na foda kafa sassa tsarin

1. Don yin gyare-gyare da gyare-gyare cikin sauƙi, yi ƙoƙarin zaɓar madaidaiciyar ƙirar ƙira mai ma'ana wanda ke guje wa matsanancin bambance-bambance a cikin sashe da kunkuntar tsagi, filaye mai siffar zobe, da sauransu.

2. Guji ganuwar bakin ciki na gida don sauƙaƙe ƙwayar foda da hana fasa.

3. A guji ramuka da ramuka a bangon gefe don sauƙaƙe haɗawa ko rage ragowar tubalan.

4. Guji haɓaka yanki na giciye tare da dannawa don sauƙaƙe ƙaddamarwa. Ya kamata a zagaye kusurwoyi a mahaɗin kowane bango don sauƙaƙe haɗawa da guje wa damuwa.

Abun Ƙirƙirar Foda

Nau'in sassa na farko: latsa unidirectional, bangon bakin ciki, sifa mara izini, sashin tebur (kaurin bango gabaɗaya har zuwa 6.35mm)

Nau'i na biyu na sashi: ɓangaren tebur, kowane tsayi da siffa, dole ne ya zama sassan latsawa bidirectional.

Sashi na III: Wani bangare na teburi biyu, na kowane tsayi da siffa, wanda dole ne a danna shi ta bangarorin biyu

Nau'i na huɗu na sassa: Multi-tebur, kowane tsawo da siffa, dole ne a yi amfani da Multi-die stamping bidirectional latsa sassa.