The cryogenic ọgwụgwọ nke PDC cutter

Onye na-egbu PDC bụ ihe mejupụtara nke nwere ezigbo ihe onwunwe nke enwetara site na ịgbanye ntụ ntụ diamond nwere mkpụrụ carbide cemented na-eji teknụzụ dị elu na nrụgide dị elu (HTHP).

Onye na-egbutu PDC nwere ezigbo conductivity thermal, ultra-high hard hardness, and wear resistance, yana ike dị elu, mmetụta siri ike dị elu, yana mfe ịgbado ọkụ.

A na-akwado oyi akwa diamond polycrystalline site na cemented carbide substrate, nke nwere ike itinye nnukwu mmetụta na-ebu ibu ma zere mmebi dị njọ n'oge ọrụ. Ya mere, a na-eji PDC eme ihe n'ọtụtụ ebe maka ịmepụta ngwá ọrụ ịkpụ, geological na mmanụ na gas olulu mmiri, na ngwaọrụ ndị ọzọ na-eguzogide.

N'ebe a na-egwupụta mmanụ na gas, ihe karịrị 90% nke mkpokọta egwu egwu na-emecha site na ibe PDC. A na-ejikarị ibe n'ibe PDC eme ihe maka mkpuru okwute siri ike ma dị nro. N'ihe banyere igwu mmiri miri emi, a ka nwere nsogbu nke ndụ dị mkpirikpi na ROP dị ala.

N'ime usoro mgbagwoju anya miri emi, ọnọdụ ọrụ nke PDC drill bit dị oke njọ. The isi ụdị nke ọdịda nke mejupụtara ibe na-agụnye nnukwu fractures dị ka gbajiri ezé na chipping mere site mmetụta mere site akuakuzinwo bit na-enweta a nnukwu mmetụta ibu, na oke ala oghere okpomọkụ na-eme ka mejupụtara iberibe. Mbelata iyi mgbochi nke mpempe akwụkwọ ahụ na-akpata ikpo ọkụ nke mpempe akwụkwọ PDC mejupụtara. Ọdịda ahụ a kpọtụrụ aha n'elu nke mpempe akwụkwọ mejupụtara PDC ga-emetụta ndụ ọrụ ya na ịrụ ọrụ nke ọma.

Kedu ihe bụ ọgwụgwọ Cryogenic?

Ọgwụgwọ Cryogenic bụ mgbatị nke okpomọkụ a na-ahụkarị. Ọ na-eji nitrogen mmiri mmiri na refrigerants ndị ọzọ dị ka mgbasa ozi jụrụ oyi iji mee ka ihe dị jụụ na okpomọkụ dị n'okpuru ụlọ okpomọkụ (-100 ~-196°C) iji kwalite arụmọrụ ha.

Ọtụtụ nchọpụta dị ugbu a egosila na ọgwụgwọ cryogenic nwere ike imeziwanye ihe eji arụ ọrụ nke ígwè, aluminum alloys, na ihe ndị ọzọ. Mgbe ọgwụgwọ cryogenic gasịrị, ihe na-eme ka mmiri ozuzo na-ewusi ike na-eme na ihe ndị a. Ọgwụgwọ cryogenic nwere ike imeziwanye ike mgbanwe, na-eyi nkwụsi ike, na ịbelata arụmọrụ nke ngwaọrụ carbide cimented, yana nkwalite ndụ dị mma. Nnyocha dị mkpa egosiwokwa na ọgwụgwọ cryogenic nwere ike imeziwanye ike mkpakọ static nke akụkụ diamond, isi ihe kpatara mmụba nke ike bụ mgbanwe nke ọnọdụ nrụgide fọdụrụnụ.

Ma, anyị nwere ike imeziwanye arụmọrụ onye na-egbu PDC site na ọgwụgwọ cryogenic? N'oge a enwere ọmụmụ ole na ole dabara adaba.

Usoro ọgwụgwọ cryogenic

Usoro ọgwụgwọ cryogenic maka ndị na-egbutu PDC, ọrụ ndị a bụ:

(1) Debe ndị na-egbutu PDC na ụlọ okpomọkụ n'ime ọkụ ọgwụgwọ cryogenic;

(2) Gbanyụọ ọkụ ọgwụgwọ cryogenic, gafere na mmiri mmiri nitrogen, ma jiri njikwa okpomọkụ belata okpomọkụ n'ime ọkụ ọgwụgwọ cryogenic ruo -30 ℃ na ọnụ ọgụgụ nke -3 ℃ / min; Mgbe okpomọkụ ruru -30 ℃, ọ ga-ebelata ka -1 ℃ / min. Belata na -120 ℃; mgbe okpomọkụ ruru -120 ℃, belata okpomọkụ ka -196 ℃ na a ọsọ nke -0.1 ℃ / min;

(3) Debe ya maka awa 24 na okpomọkụ nke -196 ° C;

(4) Mgbe ahụ, mee ka okpomọkụ dị elu ruo -120C na ọnụego 0.1C/min, wee wedata ya ruo -30 Celsius na ọnụego 1 ° C / min, ma mesịa belata ya na ụlọ okpomọkụ na ọnụego. nke 3 Celsius C / min;

(5) Tinyegharịa ọrụ dị n'elu ugboro abụọ iji mezue ọgwụgwọ cryogenic nke ndị na-egbutu PDC.

A nwalere onye na-egbutu PDC nke a na-eme nke ọma na onye na-egbutu PDC a na-agwọghị ya maka oke iyi nke wiil egweri. Nsonaazụ ule gosiri na oke iyi bụ 3380000 na 4800000 n'otu n'otu. Nsonaazụ ule gosiri na mgbe miri jụrụ oyi The wear ratio nke oyi-emeso PDC cutter dị ala nke ukwuu karịa nke PDC cutter enweghị cryogenic ọgwụgwọ.

Tụkwasị na nke ahụ, a na-ejikọta mpempe akwụkwọ PDC nke a na-eme ka ọ bụrụ nke a na-adịghị agwọ ọrịa na matriks ma gwuo ya maka 200m n'otu akụkụ nke olulu mmiri dị n'akụkụ ya na otu ihe nkwụsịtụ. A na-eji 27.8% na-eme ka igwe na-egwupụta ihe na-egwupụta ihe na-eme ihe na-abawanye site na 27.8% site na iji cryogenically mesoo PDC ma e jiri ya tụnyere nke na-adịghị eji onye na-eme ihe na-eme mkpọtụ PDC.

Kedu ihe ị chere gbasara ọgwụgwọ cryogenic nke PDC cutter? Nnọọ na-ahapụ anyị okwu gị.

Maka ndị na-egbutu PDC, ị nwere ike ịbịakwute anyị site na email na [email protected].