Kedu ka esi ebipụ mkpanaka Tungsten Carbide?

Anyị maara na ike nke ngwá ọrụ ahụ n'onwe ya ga-adị elu karịa ike nke mpempe akwụkwọ a ga-eji arụ ọrụ. Ike Rockwell nke carbide cimented na-adịkarị gburugburu HRA78 ruo HRA90. Ọ bụrụ na ịchọrọ akara ma ọ bụ bepụ mkpanaka tungsten carbide nke ọma, ụzọ 4 ndị a nwere ike pụta, nke bụ igwe nchara abrasion, iji ihe siri ike na-arụ ọrụ, igwe eletriki eletrik (ECM), na igwe mgbapụta eletrik (EDM).

1. Bechaa mkpanaka carbide oghere site na igwe igwe egweri

Site ugbu a gaa n'ihu, ihe ndị nwere ike hazie oghere carbide na-ezo aka na poly-crystalline cubic boron nitride (PCBN) na poly-crystalline diamond (PCD).

Ihe ndị bụ isi maka ịkpụ wiil bụ silicon carbide na diamond green. Ebe ọ bụ na egweri sịlịkọn carbide ga-eme ka nrụgide okpomọkụ gafere oke ike nke carbide cemented, mgbawa n'elu na-eme ọtụtụ ihe, nke na-eme ka silicon carbide bụrụ ezigbo nhọrọ iji mee elu nke enwere ike ịkwenye.

Ọ bụ ezie na PCD egweri wheel ruru eru mezue niile ọrụ site roughing na agwụcha na carbide oghere, iji belata ọnwụ nke egweri wheel, carbide blanks ga-ebu ụzọ hazie site electric machining usoro, wee mee ọkara imecha na mma- imecha site na-egweri wiil n'ikpeazụ.

2. Bechapụ mmanya carbide site n'egwe ọka na ịtụgharị

Akụrụngwa nke CBN na PCBN, ezubere ka ụzọ isi gbutuo ọla ojii na ike siri ike, dị ka igwe siri ike na nkedo (iron). Boron nitrite nwere ike iguzogide mmetụta okpomọkụ dị elu (n'elu 1000 degrees) ma jidesie ike na 8000HV. Ihe onwunwe a na-eme ka ọ bụrụ nhazi nke oghere carbide, karịsịa maka akụkụ ndị ahụ na-emepụta ihe na-agụnye carbide core na ígwè casing n'okpuru nnyonye anya kwesịrị ekwesị.

Ka o sina dị, mgbe ike nke akụkụ carbide cimented dị elu karịa HRA90, kpam kpam site na boron nitrite's league iji belata, ọ dịghị mkpa ka ọ sie ike na ngwaọrụ PCBN na CBN. naanị anyị nwere ike ịtụgharị na ndị na-egbutu PCD diamond dị ka nnọchi n'okpuru ọnọdụ a.

Anyị ka na-enweghị ike chefuo ihe ọghọm nke ntinye PCD, enweghị ike ịnweta akụkụ dị nkọ nke ukwuu yana adịghị mma nke ejiri chipbreakers mepụta. Ya mere, enwere ike iji PCD naanị maka ịkpụcha ọla ndị na-abụghị nke ọla na ndị na-abụghị ọla, mana enweghị ike nweta enyo enyo nkenke nke ịcha oghere carbide, opekata mpe.

3. Electrolytic Machining (ECM)

Nhazi electrolytic bụ nhazi nke akụkụ site na ụkpụrụ nke nwere ike ịgbaze carbide na electrolyte (NaOH). Ọ na-ahụ na elu nke carbide workpiece anaghị ekpo ọkụ. Na isi ihe bụ na nhazi ngwa ngwa na nhazi nhazi nke ECM na-adabere na njirimara anụ ahụ nke ihe a ga-edozi.

4. Igwe ọkụ eletrik (EDM)

Ụkpụrụ nke EDM dabeere na ihe na-emebi ọkụ eletrik n'etiti ngwá ọrụ na workpiece (electrodes na-adịghị mma na nke na-adịghị mma) n'oge mgbụsị akwụkwọ na-egbuke egbuke iji wepụ akụkụ carbide na-agafe agafe iji nweta ihe nhazi nhazi maka nha, ọdịdị na ọdịdị elu nke workpiece. . Naanị ọla kọpa-tungsten electrodes na ọla kọpa-ọlaọcha electrodes nwere ike hazie carbide oghere.

Na nkenke, EDM anaghị eji ike arụ ọrụ eme ihe, ọ dịghị adabere n'ịbelata ike iji wepụ ígwè, ma na-eji ọkụ eletrik na okpomọkụ na-ewepụ akụkụ carbide ozugbo.