Usoro nhazi nke Tungsten Carbide

Usoro nchikota bụ otu n'ime usoro dị mkpa n'imepụta ngwaahịa carbide tungsten. Dị ka usoro nke sintering si dị, usoro nhazi ahụ nwere ike kewaa ụzọ anọ bụ isi. Ka anyị kwuo banyere usoro anọ ndị a n'ụzọ zuru ezu ma ị ga-amatakwu banyere usoro nkwụsị nke tungsten carbide.

1. Mwepụ nke Forming Agent na Burn-Na ogbo

N'ihi okpomọkụ na-arị elu, mmiri, gas, na mmanya fọdụrụnụ n'ime mmiri akọrọ ga-abụ ntụ ntụ ma ọ bụ onye na-akpụzi ihe ruo mgbe ọ ga-agbanwe.

Mmụba nke okpomọkụ ga-eduga n'iji nwayọọ nwayọọ na-etolite ire ere ma ọ bụ vaporization nke ndị ọrụ. Mgbe ahụ, onye na-emepụta ihe ga-eme ka ọdịnaya carbon nke anụ ahụ na-eme ka ọ dịkwuo elu. Ọnụ ọgụgụ nke carbon dị iche iche na-adịgasị iche na ndịiche dị na onye na-emepụta ihe dị iche iche nke usoro sintering.

N'ebe a na-ekpo ọkụ na-ekpo ọkụ, mbelata hydrogen nke cobalt na tungsten oxide anaghị emeghachi omume nke ọma ma ọ bụrụ na oghere ahụ na-ebelata ma gbasaa.

Site na mmụba nke okpomọkụ na annealing, ntụ ntụ ntụ ntụ na-eji nwayọọ nwayọọ kpochapụ.

Uzuzu ọla a kpara akpa na-amalite ịgbake na recrystalize. Ka mgbasawanye elu na-eme, ike mkpakọ na-abawanye. Nha mgbochi ahụ adịghị ike ma enwere ike ịhazi ya dị ka ihe na-eme ka plasticizer oghere.

2. Steeti Sintering siri ike

Ahụ ahụ e kewara ekewa ga-enwe nkwekọrịta n'ụzọ doro anya na steeti siri ike na-agbakọ. N'oge a, mmeghachi omume siri ike, mgbasa, na mgbaba rọba na-abawanye, anụ ahụ nke na-emekọ ihe ga-agbakọ.

3. Liquid Sintering Stage

Ozugbo aru ahụ mebiri emebi pụtara oge mmiri mmiri, mbelata ahụ na-agwụ ngwa ngwa. Mgbe ahụ, usoro ntọala nke alloy ga-etolite n'okpuru mgbanwe kristal. Mgbe okpomọkụ ahụ ruru okpomọkụ eutectic, solubility nke WC na Co nwere ike iru 10%. N'ihi esemokwu elu nke mmiri mmiri mmiri, a na-emechi ihe ndị ahụ ntụ ntụ na ibe ha. Ya mere, mmiri mmiri na-eji nwayọọ nwayọọ jupụta pores na ahụ. Na njupụta nke ngọngọ na-abawanye nke ukwuu.

4. Ogbo oyi

Maka ọkwa ikpeazụ, okpomọkụ ga-adaba na okpomọkụ ụlọ. Usoro mmiri mmiri na-aga na-esiwanye ike ka okpomọkụ na-ada. A na-edozi ọdịdị ikpeazụ nke alloy. N'oge a, microstructure na usoro nhazi nke alloy na-agbanwe na ọnọdụ jụrụ oyi. Iji mee ka ihe ndị dị n'ahụ na arụ ọrụ nke alloys dịkwuo mma, njirimara a nke alloy nwere ike iji kpoo carbide cimented ọkụ.

Ọ bụrụ na ị nwere mmasị na ngwaahịa tungsten carbide ma chọọ ozi ndị ọzọ na nkọwa, ị nwere ike ịkpọtụrụ anyị site na ekwentị ma ọ bụ mail n'aka ekpe, ma ọ bụ zipu ozi US na ala nke ibe.