Isesengura ryimbitse ryisesengura rya Polycrystalline Diamond Compact (PDC) munganda zikora neza

Ibisobanuro

Polycrystalline Diamond Compact (PDC), bakunze kwita diyama ikomatanya, yahinduye inganda zikora neza kubera ubukana budasanzwe, kwambara nabi, hamwe nubushyuhe bwumuriro. Uru rupapuro rutanga isesengura ryimbitse ryibintu bya PDC, uburyo bwo gukora, hamwe nibisabwa bigezweho muburyo bwo gutunganya neza. Ikiganiro gikubiyemo uruhare rwacyo mukugabanya umuvuduko mwinshi, gusya ultra-precision, gusya mikoro, no guhimba ibyogajuru. Byongeye kandi, imbogamizi nkibiciro byumusaruro mwinshi hamwe nubushake bikemurwa, hamwe nibizaza muri tekinoroji ya PDC.

1. Intangiriro

Gutunganya neza bisaba ibikoresho bifite ubukana buhebuje, biramba, hamwe nubushyuhe bwumuriro kugirango ugere kuri micron-urwego rwukuri. Ibikoresho gakondo nka tungsten karbide nicyuma cyihuta akenshi bigabanuka mugihe gikabije, bigatuma habaho ibikoresho bigezweho nka Polycrystalline Diamond Compact (PDC). PDC, ibikoresho bishingiye kuri diyama yubukorikori, yerekana imikorere ntagereranywa mugutunganya ibikoresho bikomeye kandi byoroshye, harimo ububumbyi, ibihimbano, hamwe nicyuma gikomeye.

Uru rupapuro rugaragaza imiterere yibanze ya PDC, tekinoroji yo gukora, ningaruka zayo zo guhindura imikorere. Byongeye kandi, irasuzuma imbogamizi zigezweho niterambere ryigihe kizaza mubuhanga bwa PDC.

2. Ibyiza bya PDC

PDC igizwe na diyama ya polycrystalline (PCD) ihujwe na tungsten karbide substrate munsi yumuvuduko mwinshi, ubushyuhe bwinshi (HPHT). Ibintu by'ingenzi birimo:

2.1 Gukomera bikabije no kwambara birwanya

Diamond ni ibintu bizwi cyane (Mohs hardness of 10), bigatuma PDC iba nziza mugutunganya ibikoresho byangiza.

Kurwanya kwambara birenze kwagura ibikoresho byubuzima, kugabanya igihe cyo gukora neza.

2.2 Ubushyuhe bwo hejuru cyane

Gukwirakwiza ubushyuhe neza birinda ihindagurika ryumuriro mugihe cyo gutunganya byihuse.

Kugabanya kwambara ibikoresho kandi bitezimbere kurangiza.

2.3 Imiti ihamye

Kurwanya reaction yimiti hamwe nibikoresho bya ferrous na ferrous.

Kugabanya ibikoresho byangirika mubidukikije byangirika.

2.4 Gukomera kuvunika

Tungsten karbide substrate yongera imbaraga zo kurwanya ingaruka, kugabanya gucika no kumeneka.

3. Uburyo bwo gukora PDC

Umusaruro wa PDC urimo intambwe nyinshi zingenzi:

3.1 Synthesis ya Diyama

Ibice bya diyama ya sintetike ikorwa hifashishijwe HPHT cyangwa imiti ivamo imyuka (CVD).

3.2 Uburyo bwo gucumura

Ifu ya diyama yinjizwa kuri tungsten karbide substrate munsi yumuvuduko ukabije (5-7 GPa) nubushyuhe (1,400–1,600 ° C).

Umusemburo w'ibyuma (urugero, cobalt) byorohereza diyama na diyama.

3.3  

Gukoresha imashini ya Laser cyangwa amashanyarazi (EDM) ikoreshwa mugushiraho PDC mubikoresho byo gutema.

Ubuvuzi bwo hejuru butera gukomera no kugabanya imihangayiko isigaye.

4. Porogaramu mu Gutunganya neza

4.1 Gukata Byihuta Gukata Ibikoresho Bidafite Ferrous

Ibikoresho bya PDC nibyiza mugutunganya aluminium, umuringa, na karubone fibre.

Porogaramu mu modoka (imashini ya piston) na electronike (gusya PCB).

4.2 Gusya Ultra-Precision Gusya Ibikoresho Byiza

Ikoreshwa muri lens hamwe no guhimba indorerwamo kuri laseri na telesikopi.

Kugera kuri micron yubuso bukabije (Ra <0.01 µm).

4.3 Micro-Machine kubikoresho byubuvuzi

PDC micro-myitozo hamwe ninsyo zanyuma zitanga ibintu bikomeye mubikoresho byo kubaga no gutera.

4.4 Gukora ibikoresho byo mu kirere  

Gukora titanium alloys na CFRP (karuboni fibre-yongerewe imbaraga za polymer) hamwe nibikoresho bike.

4.5 Ubukorikori buhanitse hamwe no Gukora ibyuma bikomeye

PDC irusha cubic boron nitride (CBN) mugutunganya karbide ya silicon na karubide ya tungsten.

5. Inzitizi n'imbibi

5.1 Ibiciro byumusaruro mwinshi

HPHT synthesis hamwe nibikoresho bya diyama bigabanya kwakirwa cyane.

5.2 Ubwitonzi mugukata guhagaritswe

Ibikoresho bya PDC bikunda gukata mugihe cyo gutunganya ibintu bidahagarara.

5.3 Kugabanuka k'ubushyuhe ku bushyuhe bwo hejuru

Igishushanyo kiboneka hejuru ya 700 ° C, bigabanya imikoreshereze yumye yumubiri wibikoresho bya fer.

5.4 Kubangikanya kugarukira hamwe nicyuma cya ferrous

Imiti ikoreshwa nicyuma iganisha ku kwihuta.

6. Ibizaza hamwe nudushya  

6.1 Nano-yubatswe PDC

Kwinjiza ibinyampeke bya nano-diyama byongera ubukana no kwambara birwanya.

6.2 Ibikoresho bya Hybrid PDC-CBN

Guhuza PDC na nitride ya cubic boron (CBN) yo gutunganya ibyuma bya fer.

6.3 Gukora ibikoresho byongera ibikoresho bya PDC  

Icapiro rya 3D rituma geometrike igoye kubisubizo byabigenewe.

6.4

Diyama imeze nka karubone (DLC) irusheho kunoza ibikoresho byubuzima.

7. Umwanzuro

PDC yabaye nkenerwa mugutunganya neza, itanga imikorere ntagereranywa mugukata byihuse, gusya ultra-precision, hamwe na microse. Nubwo hari ibibazo nkibiciro byinshi kandi byoroshye, iterambere rikomeje mubumenyi bwibikoresho nubuhanga bwo gukora bisezeranya kwagura ibikorwa byacyo kurushaho. Guhanga udushya, harimo nano yubatswe na PDC hamwe nibikoresho bya Hybrid, bizashimangira uruhare rwayo mumasekuruza azaza.