Nigute Ukata Tungsten carbide rod?

Turabizi ko ubukana bwibikoresho byabikoresho ubwabyo bigomba kuba hejuru kurenza ubukana bwigice cyakazi kugirango gikorwe. Ubukomere bwa Rockwell bwa karbide ya sima muri rusange hafi ya HRA78 kugeza HRA90. Niba ushaka amanota cyangwa guca inkoni ya karubide ya tungsten neza, inzira 4 zikurikira zirashobora gukora, arizo gusya ibiziga bya abrasion, gutunganya ibikoresho bikomeye, imashini ya electrolytike (ECM), hamwe no gutunganya amashanyarazi (EDM).

1. Kata inkoni ya karbide ubusa ukoresheje urusyo

Guhera ubu, ibikoresho bishobora gutunganya karbide cyane cyane bivuga poly-kristalline cubic boron nitride （PCBN） na diyama poly-kristaline （PCD).

Ibikoresho byingenzi byo gusya ibiziga ni icyatsi cya silicon karbide na diyama. Kuva gusya karibide ya silicon bizana ingufu zumuriro urenze imbaraga za karbide ya sima, ibice byo hejuru bibaho cyane, bigatuma karibide ya silicon itari amahitamo meza yo gukora ubuso bushobora kwizerwa.

Nubwo uruziga rwa PCD rwujuje ibisabwa rwuzuza imirimo yose kuva kurigata kugeza kurangirira kuri karbide, kugirango ugabanye igihombo cyo gusya, imyenda ya karbide izabanza gutunganywa nuburyo bwo gutunganya amashanyarazi, hanyuma ukore kimwe cya kabiri kirangiza kandi neza- kurangiza mugusya uruziga nyuma.

2. Kata karbide mukasya no guhindukira

Ibikoresho bya CBN na PCBN, bigamije nkuburyo bwo guca ibyuma byumukara hamwe nubukomezi, nkibyuma bikomeye hamwe nicyuma (icyuma). Nitrite ya Boron ishoboye kwihanganira ubushyuhe bwo hejuru (hejuru ya dogere 1000) no gufata ubukana kuri 8000HV.Uyu mutungo utuma bingana no gutunganya imyanda ya karbide, cyane cyane kuri ibyo bice byubatswe bigizwe na karbide yibyuma hamwe nicyuma kibangikanye.

Nubwo bimeze bityo ariko, mugihe ubukana bwibice bya karbide ya sima birenze HRA90, bivuye muri shampiyona ya boron nitrite yo kugabanya, ntagikeneye gutsimbarara kubikoresho bya PCBN na CBN.twashobora gusa guhindukira gukata diyama PCD kugirango bisimburwe muriki kibazo.

Ntidushobora kwibagirwa ibibi byinjizwamo PCD, kuba idashobora kubona impande zikarishye cyane hamwe nuburyo bwo guhimbwa na chipbreakers. Kubwibyo, PCD irashobora gukoreshwa gusa mugukata neza ibyuma bidafite fer na metero, ariko ntibishobora kugera kuri ultra-precision indorerwamo-gukata karbide, byibuze bitaragera.

3. Imashini ya Electrolytike (ECM)

Gutunganya amashanyarazi ni ugutunganya ibice ukurikije ihame ryuko karbide ishobora gushonga muri electrolyte (NaOH). Iremeza ko ubuso bwibikorwa bya karbide bitashyuha. Kandi ingingo ni uko ECM yihuta yo gutunganya no gutunganya ubuziranenge bwigenga kubintu bifatika bigomba gutunganywa.

4. Gutunganya amashanyarazi (EDM)

Ihame rya EDM rishingiye kubintu byo kwangirika kwamashanyarazi hagati yigikoresho nigikorwa cyakazi (positif positif na electrode nziza) mugihe cyo gusohora impanuka ya karbide kugirango ugere kubisabwa mbere yo gutunganya ubunini, imiterere nubuso bwibikorwa byakazi. . Gusa electrode y'umuringa-tungsten na electrode y'umuringa-feza irashobora gutunganya karbide.

Muri make, EDM ntabwo ikoresha ingufu za mashini, ntabwo ishingiye ku gukata imbaraga zo gukuraho ibyuma, ahubwo ikoresha ingufu z'amashanyarazi n'ubushyuhe kugirango ikureho igice cya karbide.