Ibikoresho bya karbide bifunze bifite ibyiza bikurikira:
(1) Ibikoresho byo gutwikiraho urwego rwo hejuru bifite ubukana bukabije kandi birwanya kwambara. Ugereranije na karbide idafite isima idahwitse, karbide isize isima ituma hakoreshwa umuvuduko mwinshi wo gutema, bityo bigatuma imikorere itunganywa neza, cyangwa Irashobora kongera ubuzima bwibikoresho kumuvuduko umwe.
(2) Coefficient de friction hagati yibikoresho bisize hamwe nibikoresho bitunganijwe ni bito. Ugereranije na karbide ya sima idashyizwe hamwe, imbaraga zo gukata karbide zometseho sima zaragabanutse kurwego runaka, kandi ubwiza bwubutaka bwatunganijwe nibyiza.
. Uburyo bukoreshwa cyane muburyo bwa sima ya karbide ni ubushyuhe bwo hejuru bwa chimique (HTCVD). Plasma chimique yamashanyarazi (PCVD) ikoreshwa mugutwikira hejuru ya karbide ya sima.
Ubwoko bw'imyenda ya sima ya karbide isya:
Ibikoresho bitatu bikunze gukoreshwa cyane ni titanium nitride (TiN), titanium carboneitride (TiCN) na titanium aluminide (TiAIN).
Titanium nitride itwikiriye irashobora kongera ubukana no kwambara birwanya igikoresho, kugabanya coeffisiyoneri yo kugabanya, kugabanya ibisekuruza byubatswe, no kongera ubuzima bwigikoresho. Ibikoresho bya titanium nitride bikwiranye no gutunganya ibyuma bito bito hamwe nicyuma.
Ubuso bwa titanium carboneitride itwikiriye imvi, ubukana buri hejuru yubwa titanium nitride, kandi kwihanganira kwambara nibyiza. Ugereranije na nitride ya titanium, igikoresho cyo gutwika titanium carboneitride gishobora gutunganywa ku muvuduko mwinshi wo kugaburira no kugabanya umuvuduko (40% na 60% hejuru ugereranije na nitride ya nitride,) kandi igipimo cyo gukuraho ibikoresho kiri hejuru. Ibikoresho bya Titanium carboneitride bishobora gutunganya ibikoresho bitandukanye byakazi.
Igikoresho cya titanium aluminide ni imvi cyangwa umukara. Yashizwe cyane cyane hejuru yububiko bwa sima ya karbide. Irashobora gutunganywa mugihe ubushyuhe bwo kugabanya bugeze kuri 800 ℃. Birakwiriye gukata byihuta byumye. Mugihe cyo gukata byumye, utubuto two gukata dushobora kuvanwaho numwuka uhumanye. Titanium aluminide ikwiriye gutunganyirizwa ibikoresho byoroshye nk'ibyuma bikomye, titanium alloy, nikel ishingiye kuri nikel, ibyuma bikozwe hamwe na aluminiyumu ya silikoni ndende.
Gukoresha ibishishwa bya sima ya karbide isya:
Iterambere ryibikoresho byo gutwikira ibikoresho nabyo bigaragarira mubikorwa bya nano-coating. Gupfundikanya amagana yibikoresho hamwe nubunini bwa nanometero nyinshi kubikoresho fatizo byitwa nano-coating. Ingano ya buri gice cyibikoresho bya nano-coating ni nto cyane, bityo imbibi zingano ni ndende cyane, zifite ubukana bwo hejuru cyane. , Imbaraga no kuvunika gukomera.
Ubukomezi bwa Vickers bwa nano-coating irashobora kugera kuri HV2800 ～ 3000, kandi kwihanganira kwambara byongerewe 5% ～ 50% ugereranije nibikoresho bya micron. Nk’uko raporo zibyerekana, kuri ubu, hateguwe ibice 62 by’ibikoresho byo gutwikisha hamwe n’ibindi bisimburana bya titanium karbide na titanium carboneitride hamwe n’ibice 400 bya TiAlN-TiAlN / Al2O3 ibikoresho bya nano.
Ugereranije n’ibintu byavuzwe haruguru, sulfide (MoS2, WS2) yometse ku byuma byihuta byitwa icyuma cyoroshye, gikoreshwa cyane cyane mu guca amavuta akomeye ya aluminiyumu, amavuta ya titanium hamwe n’ibyuma bidasanzwe.
Niba hari icyo ukeneye, nyamuneka uzaze kuvugana na MSK, tworoshye gutanga ibikoresho byubunini busanzwe mugihe gito hamwe nibikoresho byabigenewe byateganijwe kubakiriya.
Igihe cyo kohereza: Nzeri-22-2021
