Nzọụkwụ anọ bụ isi nke Tungsten Carbide Sintering Processing

Tungsten carbide, nke a makwaara dị ka carbide cimented, nwere njirimara nke ịdị elu siri ike, ike dị elu, ezigbo mgbochi iyi na ike siri ike, oke ọkụ na-eguzogide, na nguzogide corrosion. A na-ejikarị ya eme ngwá ọrụ ịkụ ala, ihe ndị na-egwupụta akụ, ngwá ọrụ ịkpụ, akụkụ ndị na-adịghị eyi uwe, ígwè anwụ anwụ, nkenke bearings, nozzles, wdg.

Sintering bụ isi usoro maka imepụta ngwaahịa carbide tungsten. Enwere usoro anọ bụ isi nke tungsten carbide sintering usoro.

1. Pre-sintering ogbo (Mwepụ nke akpụ gị n'ụlọnga na pre-sintering ogbo)

Mwepụ nke onye na-emepụta ihe: Site na mmụba nke mmalite okpomọkụ nke sintering, onye na-emepụta ihe na-eji nwayọọ nwayọọ na-emebi ma ọ bụ vaporizes, si otú ahụ na-ewepụ site na isi ihe. N'otu oge ahụ, onye na-emepụta ihe ga-eme ka carbon dịkwuo elu na isi ihe na-emepụta ihe ma ọ bụ na-erughị ya, na ọnụ ọgụgụ nke carbon na-abawanye ga-adịgasị iche na ụdị na ọnụọgụ nke onye na-emepụta ihe na usoro nsị.

A na-ebelata oxides n'elu ntụ ntụ: na okpomọkụ na-ekpo ọkụ, hydrogen nwere ike ibelata oxides nke cobalt na tungsten. Ọ bụrụ na e wepụrụ onye na-emepụta ihe n'ime oghere ma gbanye ya, mmeghachi omume carbon-oxygen agaghị adị ike nke ukwuu. Ka nrụgide kọntaktị n'etiti ntụ ntụ ntụ ntụ na-eji nwayọọ nwayọọ kpochapụ, ngwakọta ígwè ntụ ntụ ga-amalite ịmaliteghachi na recrystallize, elu ga-amalite ịgbasa, na kọmpat ike ga-abawanye otú ahụ.

N'oge a, okpomọkụ adịghị erughị 800 ℃

2. Ogbo sintering siri ike (800 ℃ ——eutectic okpomọkụ)

800 ~ 1350C° tungsten carbide ntụ ntụ ọka size na-eto nnukwu ma jikọta ya na cobalt ntụ ntụ ka ọ bụrụ eutectic.

N'oge okpomọkụ tupu ọdịdị nke mmiri mmiri ahụ pụta, mmeghachi omume siri ike na mgbasa ozi na-esiwanye ike, a na-eme ka ọnyà plastik na-emewanyewanye, na anụ ahụ na-adaba adaba nke ukwuu.

3. Ogbo sintering mmiri mmiri (eutectic okpomọkụ - sintering okpomọkụ)

Na 1400 ~ 1480C° ihe nkedo ntụ ntụ ga-agbaze n'ime mmiri mmiri. Mgbe usoro mmiri mmiri na-apụta na ntọala siri ike, nkwụsị ahụ na-agwụ ngwa ngwa, na-esote mgbanwe crystallographic iji mepụta nhazi na nhazi nke alloy.

4. Okpokoro jụrụ oyi ( Sintering okpomọkụ - ụlọ okpomọkụ)

N'oge a, nhazi na nhazi nke tungsten carbide agbanweela site na ọnọdụ dị jụụ dị iche iche. Enwere ike iji njirimara a na-ekpo ọkụ-trench tungsten carbide iji meziwanye ihe anụ ahụ na n'ibu.

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.