Uzaze gusobanukirwa ibyuma byihuta
Icyuma cyihuta cyane (HSS) nicyuma cyibikoresho bifite ubukana bwinshi, birwanya kwambara cyane kandi birwanya ubushyuhe bwinshi, bizwi kandi nkicyuma cyumuyaga cyangwa ibyuma byimbere, bivuze ko bishobora gukomera nubwo byakonjeshwa mukirere mugihe cyo kuzimya, na birakaze cyane. Yitwa kandi ibyuma byera.
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Icyuma cyihuta cyane nicyuma kivanze kirimo ibintu bigoye, birimo ibintu bigize karbide nka tungsten, molybdenum, chromium, vanadium, na cobalt. Umubare wuzuye wibintu bivangwa ni 10-25%. Irashobora kugumana ubukana bwinshi bitewe nubushyuhe bwinshi buterwa no guca umuvuduko mwinshi (hafi 500 ℃), kandi HRC yayo irashobora kuba hejuru ya 60. Iki nikintu cyingenzi kiranga ibyuma byihuta - ubukana butukura. Nyuma yo kuzimya n'ubushyuhe buke, ibyuma bya karubone ibyuma bifite ubukana bwinshi mubushyuhe bwicyumba, ariko iyo ubushyuhe buri hejuru ya 200 ° C, ubukana buragabanuka cyane, kandi ubukana bwamanutse kurwego rusa nubwa leta yometse kuri 500 ° C. , Yatakaje burundu ubushobozi bwo guca ibyuma, bigabanya imikoreshereze yicyuma cya karubone mugukata ibikoresho. Ibyuma byihuta byuzuza amakosa yica ibyuma bya karubone kubera ubukana bwayo butukura.
Ibyuma byihuta cyane bikoreshwa cyane cyane mugukora ibyuma bigoye cyane hamwe nibikoresho byo gukata ibyuma birwanya ingaruka, hamwe nubushyuhe bwo hejuru hamwe no gukonjesha bikonje bipfa gupfa, nkibikoresho byo guhindura, ibikoresho bya drill, hobs, imashini ibona ibyuma, hamwe nibisabwa.
▌ Reka twige ibyuma bya tungsten
Ibyuma bya Tungsten (karubide ya tungsten) bifite urukurikirane rwibintu byiza cyane nko gukomera cyane, kwihanganira kwambara, imbaraga nziza no gukomera, kurwanya ubushyuhe no kurwanya ruswa, cyane cyane ubukana bwayo bwinshi no kwihanganira kwambara, ndetse no ku bushyuhe bwa 500 ° C. ahanini bidahindutse, kandi iracyafite ubukana bwinshi kuri 1000 ° C.
Ibyuma bya Tungsten, ibyingenzi byingenzi ni tungsten karbide na cobalt, bingana na 99% yibigize byose, naho 1% nibindi byuma, bityo byitwa ibyuma bya tungsten, bizwi kandi nka karbide ya sima, kandi bifatwa nkinyo ya kijyambere inganda.
Ibyuma bya Tungsten ni ibikoresho byacuzwe bigizwe byibura na karbide imwe. Carbide ya Tungsten, karbide ya cobalt, niobium carbide, karbide ya titanium, na tantalum karbide nibintu bisanzwe bigize ibyuma bya tungsten. Ingano yintete yibigize karbide (cyangwa icyiciro) mubisanzwe iba hagati ya micron 0.2-10, kandi ibinyampeke bya karbide bifatanyirizwa hamwe hakoreshejwe icyuma. Ibyuma bifata ibyuma ni ibyuma byitsinda ryitsinda, bikunze gukoreshwa ni cobalt na nikel. Kubwibyo, hariho amavuta ya tungsten-cobalt, amavuta ya tungsten-nikel hamwe na tungsten-titanium-cobalt.
Gucumura ibyuma bya tungsten ni ugukanda ifu muri bilet, hanyuma ukayishyushya mu itanura ryinjira kugeza ku bushyuhe runaka (ubushyuhe bwo gucumura), ukabika mugihe runaka (gufata umwanya), hanyuma ukonjesha kugirango ubone ibikoresho bya tungsten ibikoresho hamwe nibisabwa.
Ung Tungsten-cobalt ciment ya karbide
Ibyingenzi byingenzi ni tungsten karbide (WC) na binder cobalt (Co). Urwego rwarwo rugizwe na “YG” (intangiriro ya pinyin yo mu gishinwa ya “ikomeye, cobalt”) hamwe nijanisha ryibintu bisanzwe bya cobalt. Kurugero, YG8 bivuze ko impuzandengo ya WCo = 8%, naho ibindi ni tungsten-cobalt ciment cbide ya karbide ya tungsten.
UngTungsten-titanium-cobalt ciment ya karbide
Ibyingenzi byingenzi ni tungsten karbide, titanium karbide (TiC) na cobalt. Urwego rwarwo rugizwe na “YT” (inyuguti ya pinyine yo mu gishinwa ya “ikomeye, titanium”) hamwe n'impuzandengo ya karubide ya titanium. Kurugero, YT15 bivuze ko impuzandengo ya TiC = 15%, naho ibindi ni tungsten karbide na cobalt ishingiye kuri tungsten-titanium-cobalt ciment ya karbide.
UngTungsten-titanium-tantalum (niobium) ishingiye kuri sima ya karbide
Ibyingenzi byingenzi ni tungsten karbide, titanium karbide, tantalum karbide (cyangwa niobium carbide) na cobalt. Ubu bwoko bwa karbide ya sima nayo yitwa karbide rusange ya sima cyangwa karbide rusange. Urwego rwarwo rugizwe na “YW” (intangiriro ya pinyin yo mu gishinwa ya “bikomeye” na “wan”) hiyongereyeho nimero ikurikirana, nka YW1.
Ibyuma bya Tungsten bifite urukurikirane rw'ibintu byiza cyane nko gukomera cyane, kwambara birwanya, imbaraga nziza no gukomera, kurwanya ubushyuhe no kurwanya ruswa, cyane cyane ubukana bwacyo bukabije no kwambara, bikomeza kuba bidahindutse ndetse no ku bushyuhe bwa 500 ° C. Iracyafite ubukana bwinshi kuri 1000 ° C. Carbide ya sima ikoreshwa cyane nkibikoresho, nkibikoresho byo guhindura, gukata urusyo, imyitozo, ibikoresho birambirana, nibindi. Umuvuduko wo kugabanya karbide nshya ya sima wikubye inshuro amagana ibyuma bya karubone.
Igihe cyo kohereza: Kanama-09-2023
