Thermally Stable Polycrystalline Diamond Bit Cutter

E webatara ndị na-egbutu ihe ntanye polycrystalline siri ike na-ekpo ọkụ mgbe achọpụtara na a na-akụ ndị na-egbutu ihe PDC mgbe ụfọdụ n'oge a na-egwupụta ihe. Ọdịda a bụ n'ihi nrụgide dị n'ime nke sitere na mgbasawanye dị iche iche nke diamond na ihe nkedo.

Cobalt bụ ihe nkedo a na-ejikarị eme ihe na ngwaahịa PCD emechiri emechi. Ihe a nwere ọnụọgụ okpomọkụ nke mgbasawanye nke 1.2 x 10 ^-5 deg. C tụnyere 2.7 x 10 ^-6 maka diamond. Ya mere cobalt na-agbasa ngwa ngwa karịa diamond. Dị ka nnukwu okpomọkụ nke cutter na-ebili n'elu 730 deg C nrụgide dị n'ime ya kpatara site na ọnụ ọgụgụ dị iche iche nke mgbasawanye na-eduga na mgbagwoju anya intergranular siri ike, nnukwu chipping, na ọdịda ngwa ngwa nke cutter.

Okpomọkụ ndị a dị elu karịa okpomọkụ a na-ahụ na ala nke olulu mmiri (na-abụkarị 100 deg C na 8000 ft). Ha na-ebilite site na esemokwu na-ebute site na ịkpacha ajị anụ nke ibe ndị a na-egbutu nkume.

Ihe mgbochi okpomoku nke 730 deg C gosipụtara ihe mgbochi dị oke mkpa iji nweta nkwalite arụmọrụ nke ibe nbipụta PCD.

Ndị na-emepụta nwalere iji kwalite nkwụsi ike nke ndị na-egbutu ihe na-ekpo ọkụ na-ekpo ọkụ na-ekpo ọkụ na polycrystalline diamond bits cutters ka emepụtara.

Ndị na-egbutu ibe n'ibe ndị a kwụsiri ike na okpomọkụ dị elu n'ihi na ewepụla ihe nkedo cobalt na nke a na-ewepụ nrụgide dị n'ime site na mgbasawanye dị iche iche. Ebe ọ bụ na ihe ka ọtụtụ n'ime ihe nkedo na-ejikọta ọnụ, ogologo ọgwụgwọ na acids nwere ike ịpụpụ ọtụtụ n'ime ya. Njikọ dị n'etiti irighiri diamond n'akụkụ adịghị emetụta, na-ejigide 50-80% nke ike kọmpat. PCD leached na-akwụsi ike n'ime ikuku ma ọ bụ na-ebelata ikuku ruo 1200 deg C mana ọ ga-eweda na 875 deg C n'ihu ikuku oxygen.

E gosipụtara na ọ bụrụ na enwere ike iwepụ ihe cobalt na oghere ọka, a ga-emeziwanye nkwụsi ike nke ezé PDC nke ọma ka bit ahụ wee nwee ike ịkụnye nke ọma na nhazi siri ike na nke abrasive. Teknụzụ mkpochapụ cobalt a na-eme ka iguzogide ezé PDC na-eyi n'ụdị nkume siri ike nke ukwuu ma na-agbasawanye ngwa ngwa nke ibe n'ibe PDC.

Maka ozi ndị ọzọ gbasara ndị na-egbutu PDC, nabata ileta anyị na www.zzbetter.com