Amakuru

Mu isi y’ubukorikori bw’ibyuma mu nganda, icyuma kitagira umugese kizwiho "ubukomere" bwacyo bukabije. Waba ukoresha 304, 316, cyangwa 400-series alloys zihariye, ibi bikoresho bitera ikibazo gikomeye ku bikoresho bisanzwe byo gukata: ubushyuhe bwinshi kandi busanzwe.

Muri Jiacheng Tools, itsinda ryacu rya tekiniki rikunze gusobanura impamvu uduce dusanzwe twa High-Speed Steel (HSS) dupfa vuba iyo ducukura ibyuma bitarangwamo umuvuduko. Igisubizo kiri mu miterere y'ubushyuhe bw'ibikoresho, kandi igisubizo cyizewe cyane ni ugukoresha uduce twa Cobalt (HSS-Co) two gucukura.

Ubumenyi bw'ubushyuhe mu byuma bitagira umugese

Icyuma kidafunze gifite ubushobozi buke cyane bwo gutwara ubushyuhe. Iyo ukicukuyemo, ubushyuhe buturuka ku gikorwa cyo gukata ntibushira mu gikoresho cyangwa ngo busohoke hamwe n'udupira. Ahubwo ubushyuhe buguma aho agace k'icyuma gahurira n'icyuma.

Uduce dusanzwe twa HSS dukunze gutangira koroha no gutakaza imbaraga zatwo zo gucana iyo ubushyuhe bugeze kuri dogere selisiyusi 500. Uko agace kagenda gashira, gatangira gukurura aho gucibwa, ibyo bigatuma habaho gushyamirana no gushyuha kurushaho. Ibi bihita bituma agace ka "gatwikwa", agace kangiritse, n'agace k'umurimo kangirika.

Ibanga ry'"Ubukonje Butukura"

Uduce two gucukura Cobalt—cyane cyane utwakozwe muri M35 (5% Cobalt) cyangwa M42 (8% Cobalt) alloys—twakozwe kugira ngo dushobore gutera imbere muri ibi bice bishyuha cyane.

Akamaro k’ingenzi cyane ka tekiniki ka Cobalt ni "Ubukonje Butukura." Ubu ni ubushobozi bw'igikoresho cyo gukata kugira ngo gikomeze kuba cyiza kandi gishyushye nubwo cyaba gishyushye cyane (kugeza kuri 600°C - 700°C). Nubwo icyuma gisanzwe cyakonjesha (cyoroshye) kuri uru rwego, aloyi za Cobalt ziguma zikomeye kandi zigakomeza gukata neza.

M35 vs M42: Ni iyihe ukeneye?

Kugira ngo uhitemo igikoresho gikwiye umushinga wawe, ni byiza gusobanukirwa ibyiciro bibiri by'ingenzi bikoreshwa mu nganda z'umwuga:

●M35 (5% Cobalt): Iyi ni "ifite ubushobozi bwose" mu byuma bitarangwamo imirasire. Itanga uburyo bwiza bwo kwirinda ubushyuhe no gukomera, bigatuma idacika intege kurusha cobalt yo mu bwoko bwa grade. Ni yo mahitamo meza mu mirimo myinshi yo kubungabunga no gukora mu nganda.

●M42 (8% Cobalt): Yagenewe ibikoresho bikomeye cyane nka Titanium cyangwa Inconel. Nubwo ifite ubukana bwinshi bw'umutuku, irarushya kurusha M35. Ikenera imashini ihamye kandi ifite ubuhanga bwo hejuru kugira ngo wirinde gucika bitewe n'igitutu cyo ku ruhande.

Ni gute Cobalt ifasha mu by'ukuri? (Akarusho ka Mikorosikopu)

Ushobora kwibaza uti: ni gute kongeramo igice gito cya Cobalt (5% cyangwa 8%) bigira itandukaniro rikomeye mu mikorere? Ibanga riri mu miterere ya atome y'icyuma cy'igikoresho.

1. Kongera ubushyuhe bukabije

Muri HSS isanzwe, ubukana buturuka kuri karubide zikomeye. Ariko, iyo ubushyuhe burenze 500°C, izi karubide zitangira gushonga cyangwa "gushonga," bigatuma icyuma gitakaza ubukana bwacyo kandi cyoroshye. Cobalt ikora nk'"itera imbaraga." Yongera ubushyuhe icyuma gitangira koroha, bigatuma inkombe zikomeza gukomera ndetse no mu gihe cy'ubushyuhe bukabije.

2. Gukomeza Matrix

Cobalt iguma mu "gisubizo gikomeye" cya matrix y'icyuma. Ntabwo ikora karubide zayo; ahubwo, ikomeza isano iri hagati y'ibindi bintu nka Tungsten, Molybdenum, na Vanadium. Tekereza kuri Cobalt nk'"kole" ifata imiterere ya kristale y'igice cy'imashini iyo ubushyuhe bugerageje kuyikuramo.

3. Kongera ubushobozi bwo gutwara ubushyuhe ku gice cyo hejuru

Igitangaje ni uko nubwo icyuma kitagira umuvuduko kidakoresha ubushyuhe bwinshi, Cobalt ifasha icyuma cyo gucukura gukoresha ingufu neza. Ituma igikoresho gikomeza kugira ubushyuhe bwinshi, bivuze ko itandukaniro riri hagati y’ubushyuhe bw’icyumba n’ubushyuhe bwinshi ari rito cyane ugereranyije n’icyuma gisanzwe.

Impamvu 3 Cobalt ari yo mahitamo y'abanyamwuga

●Ubudahangarwa ku Gukomera kw'Umurimo: "Umurimo w'icyuma kidashonga urakomera" ako kanya. Iyo agace k'icyuma gahagaze cyangwa kagakubita, ubuso burushaho kugorana kwinjiramo. Uduce twa Cobalt dukomeza kugira uruhande rutyaye nk'urwago ruruma mu bikoresho buri gihe, bikarinda ubuso gukomera.
●Ubuzima bw'Igikoresho Gikomeye: Mu gihe cyo gukora ibikoresho byinshi, "ikiguzi" cy'igikoresho kirimo igihe gikoreshwa mu kugihindura. Ibice bya Cobalt bimara igihe kirekire cyane ugereranyije na HSS isanzwe, bivuze ko impinduka nke z'ibikoresho n'igihe gito cyo kubura imashini.
●Ikiguzi Nyacyo Gikoreshwa: Nubwo Cobalt bit ishobora kugura 30% kurusha bit isanzwe, akenshi ishobora gucukura imyobo myinshi mu byuma bitagira umugese inshuro 5 kugeza ku 10. Ibi bituma ikiguzi kuri buri mwobo kiba gito cyane, bigatuma ubucuruzi bwawe buzigama amafaranga mu gihe kirekire.

Inama z'inzobere ku mikorere myiza

Kugira ngo wongere igihe cyo gukora imyitozo ya Jiacheng Cobalt, kurikiza aya mabwiriza y'umwuga:
1. Kugabanya Umuvuduko (RPM): Ibice bya Cobalt bikora neza cyane ku muvuduko muto. Umuvuduko mwinshi utera ubushyuhe butari ngombwa ku buryo na Cobalt idashobora kwihanganira igihe kirekire.
2. Gushyira igitutu ku gituza gihoraho: Ntugatume igice cy'igituza "kiba" mu mwobo. Koresha igitutu gihamye kandi gikomeye kugira ngo impande zo gutema zihore zikuraho icyuma.
3. Koresha amavuta meza yo kwisiga: Nubwo Cobalt irwanya ubushyuhe, amavuta yo gukata akozwe muri sulfur cyangwa icyuma gikonjesha cyiza cyane bizakuramo uduce duto kandi bikongere igihe cyo kubaho k'igikoresho.

Umwanzuro

Ku ruganda urwo arirwo rwose rukora ibikoresho by'icyuma kitagira umuze, uduce two gucukura twa Cobalt si ikintu cy'agaciro gusa—ni ngombwa. Gushora imari mu bikoresho bikwiye, bituma umushinga wose uba wizewe, utunganye kandi ukagira umusaruro mwiza. Muri Jiacheng Tools, twibanda ku gutanga ibikoresho byo gucukura bya M35 na M42 bigezweho bituma imiyoboro yawe ikomeza gukora.