Ụdị mkpuchi isi nke igwe ngwụcha

A na-akpọkwa igwe ihe igwe na-akwụsị carbide dị ka igwe ihe eji eme carbide simented. Ike nke ngwá ọrụ n'onwe ya dị n'etiti ogo HRA88-96. Ma na mkpuchi n'elu, ihe dị iche na-abịa. Ụzọ dị ọnụ ala iji melite arụmọrụ nke igwe njedebe bụ ịgbakwunye mkpuchi kwesịrị ekwesị. Ọ nwere ike ịgbatị ndụ ngwá ọrụ na arụmọrụ.

Kedu ihe mkpuchi bụ isi nke igwe igwe njedebe na ahịa?

1. TiN - Titanium Nitride - isi ihe mkpuchi mkpuchi na-egbochi izugbe

TiN bụ ihe mkpuchi siri ike na-eyikarị na abrasion. Ọ na-ebelata esemokwu, na-abawanye nkwụsi ike kemịkalụ na okpomọkụ, ma na-ebelata ịrapagidesi ike nke ihe na-emekarị mgbe a na-eji ígwè dị nro. TiN dabara maka mkpuchi mkpuchi nke carbide cimented - ihe nkuku, ihe ngwucha ihe, ihe ntinye ihe eji eme ihe, tap, reamers, mma punch, ihe ncha, ihe ncha na ngbanwe, matrices, na ụdị. Ebe ọ bụ na ọ dakọtara, enwere ike iji ya na ngwa ahụike (ịwa ahụ na eze) na ngwaọrụ etinyere. N'ihi ụda agba ọla edo ya, TiN achọpụtala ọtụtụ ojiji dị ka mkpuchi ịchọ mma. A na-ewepụ ihe mkpuchi TiN a na-eji ngwa ngwa na nchara ngwá ọrụ. Ndozi ngwaọrụ nwere ike ibelata ọnụ ahịa nke ukwuu, ọkachasị mgbe ị na-eji ngwaọrụ dị oke ọnụ.

2.TiCN - Titanium Carbo-Nitride - mkpuchi na-eguzogide ọgwụ megide corrosion nrapado

TiCN bụ mkpuchi ebumnuche niile mara mma. TiCN siri ike yana mmetụta na-eguzogide karịa TiN. Enwere ike iji ya kpuchie ihe eji egbutu ihe, ịkụ ọkpọ na imepụta ihe, ihe ndị na-akpụ akpụ ntụtụ na ihe ndị ọzọ na-eyi. Ebe ọ bụ na ọ dakọtara, enwere ike iji ya na ngwa ahụike yana ngwaọrụ etinyere ya. Enwere ike ịbawanye ọsọ machining yana ndụ ngwá ọrụ nwere ike ịkwalite site na 8x dabere na ngwa, coolant, na ọnọdụ igwe ndị ọzọ. A na-atụ aro mkpuchi TiCN ka e jiri ya mee ihe maka ịkpụ mma nke ọma n'ihi nkwụsi ike ya dị ntakịrị. A na-ewepụ ihe mkpuchi TiCN eji eme ihe ngwa ngwa ma weghachite ngwá ọrụ ahụ. Ndozigharị ngwaọrụ ndị dị oke ọnụ nwere ike ibelata ọnụ ahịa nke ukwuu.

3. AlTiN-The Aluminium-Titanium-Nitride mkpuchi ()

Ọ bụ ngwakọta kemịkalụ nke ihe atọ aluminom, titanium, na nitrogen. Ọkpụrụkpụ mkpuchi ahụ dị n'etiti 1-4 micrometers (μm).

Akụkụ pụrụ iche nke mkpuchi AlTiN na-eguzogide oke okpomọkụ na oxidation. Nke a bụ akụkụ n'ihi nano hardness nke 38 Gigapascal (GPa). N'ihi ya, ọ na-esote na usoro mkpuchi ahụ n'agbanyeghị ọsọ ọsọ dị elu na okpomọkụ dị elu na-adịgide adịgide. Tụnyere ngwaọrụ enweghị mkpuchi, mkpuchi AlTiN, dabere na ngwa ahụ, na-abawanye ndụ ọrụ ihe ruru ugboro iri na anọ.

Ihe mkpuchi nke nwere aluminom nke ukwuu dabara nke ọma maka ngwaọrụ ziri ezi, nke na-egbutu ihe siri ike dị ka nchara (N/mm²)

Okpomọkụ ngwa ngwa kachasị bụ 900º Celcius (ihe dị ka 1,650F Fahrenheit) ma jiri ya tụnyere mkpuchi TiN na 300º Celcius dị elu na-eguzogide okpomọkụ.

Ịjụ oyi abụghị iwu. N'ozuzu, ịjụ oyi na-abawanye ndụ ọrụ nke ngwá ọrụ ahụ.

Dị ka e kwuru na mkpuchi TiAlN, ekwesịrị iburu n'uche na ma mkpuchi na ngwá ọrụ ígwè ga-adabara ngwa ngwa na ihe siri ike. Ọ bụ ya mere anyị ji jiri AlTiN kpuchie ihe ngosi pụrụ iche nke tungsten-carbide mere.

4.TiAlN - Titanium Aluminom Nitride - mkpuchi na-eguzogide ọgwụ maka igbutu ngwa ngwa

TiAlN bụ mkpuchi nke nwere ike siri ike na oke okpomọkụ na nguzogide oxidation. Ntinye nke aluminom mụbara nguzogide okpomọkụ nke mkpuchi PVD a mejupụtara n'ihe gbasara mkpuchi TiN ọkọlọtọ site na 100 Celsius. A na-ekpuchi TiAlN na ngwa ngwa ịkpụ ọsọ dị elu nke a na-eji na igwe CNC maka ịme ihe nke siri ike dị elu yana n'ọnọdụ ọnwụ siri ike. TiAlN dabara adaba karịsịa maka ndị na-akpụ ihe na-egwe ọka siri ike nke monolithic, nkuku, ntinye ihe ncha, na ịkpụ mma. Enwere ike iji ya na ngwa igwe akọrọ ma ọ bụ nke dị nso.

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.