Analysis ea Core Performance Parameters bakeng sa Cemented Carbide Chisels

Chisel e entsoeng ka samente ea carbide ke pelo ea lisebelisoa tsa sejoale-joale tsa ho cheka mafika, 'me ts'ebetso ea eona e supa ka kotloloho bokhoni ba ho cheka le bophelo ba lisebelisoa. Ho khetha le ho sebelisa lichiseli tsena ka mahlale, ho bohlokoa ho utloisisa ka botebo lintlha tse latelang tsa mantlha tsa ts'ebetso.

1. Thata: Letšoao le ka sehloohong la ho hanyetsa ho kenella le ho apara

Ho thatafala ke paramethara e lekanyang bokhoni ba bokaholimo ba chisel ea carbide ho hana ho kenella kapa ho hohloa ke lintho tse tsoang kantle ho naha, tseo hangata li hlahisoang ho Rockwell Hardness (HRA). E khethoa haholo ke ho thatafala, boholo ba lijo-thollo, le kabo ea tungsten carbide (WC) ka har'a thepa. Ho thatafala ho hoholo ho bolela hore chisel e khona ho loma lejoe le thata 'me e hane ho senyeha ha majoe a li-cuttings, kahoo e boloka bohale le ho lelefatsa bophelo ba ts'ebeletso. Meetsong ea mafika a chefo haholo, ho thatafala ke mokhoa oa mantlha oa khetho.

2. Toughness: The Key Guarantee Khahlanong le Impact le Fracture

Toughness e emela bokhoni ba thepa ea ho monya matla ntle le ho robeha. Ho cheka ke ts'ebetso e phahameng ea khafetsa, e nang le khatello e phahameng ea maikutlo. Haeba chisel e sa tiea ka ho lekaneng, e atisa ho petsoha, ho petsoha, kapa hona ho hloleha ka ho feletseng. Toughness haholo-holo e itšetlehile ka likahare le kabo ea karolo e kopanyang ea cobalt (Co). Ka kakaretso, litaba tsa cobalt tse phahameng li baka boima bo betere. Ka mafika a robehileng le a sa tšoaneng, ho tiea ho hoholo ke tsela ea bophelo e thibelang ho hloleha ha lichesele pele ho nako.

3. Matla a Flexural: Tekanyo ea Bokhoni ba ho Jara Moroalo

Matla a Flexural ke khatello e phahameng eo thepa e ka e mamellang pele e robeha tlas'a moroalo o kobehang. E bonahatsa ka botlalo "matla" le "bothata" ba carbide e entsoeng ka samente 'me e amana ka ho toba le bokhoni ba chisel ba ho hanela ho robeha tlas'a matla a maholohali le linako tse thata tsa ho khumama. Chisel e nang le matla a phahameng a ho tenyetseha e tšoana le "mokokotlo" o tiileng, o e nolofalletsang ho mamella likhatello tse fapaneng tse kopanang le maemo a thata a ts'ebetso le ho netefatsa ts'ireletso le ts'epo.

4. Fracture Toughness: The Resistance to Crack Propagation

Ho thatafala ha fracture ke sesupo se tsoetseng pele sa ho tiea, haholo-holo bokhoni ba thepa e nang le li-cracks tse nyenyane ho hanela ho ata ho sa tsitsang ha crack. Tlhahisong e sebetsang, mefokolo ea microscopic ka har'a thepa e ke keng ea qojoa. Matla a phahameng a fracture a bolela hore le haeba li-micro-cracks li ka hlaha, ha ho bonolo hore li ata ka potlako le ho baka ho hlōleha ho feletseng. Paramethara ena e bohlokoa bakeng sa ho netefatsa polokeho ea sesebelisoa tlas'a maemo a feteletseng a kenyelletsang meroalo e sa bonahaleng (mohlala, ho thella hanyane).

Qetello: Tekanyo le Tšebelisano ea Thepa

Ke habohlokoa ho totobatsa hore li-parameter tsena tsa mantlha ha li be teng ka thōko empa li itšetlehile ka tse ling 'me hangata li kenyelletsa khoebo. Ho lelekisa boima bo phahameng haholo hangata ho tla ka litšenyehelo tsa ho fokotsa boima le matla, 'me ka tsela e fapaneng. Mohlala, lichesele tse nang le lijo-thollo tse ntle le li-cobalt tse tlase li bonts'a ho thatafala ho hoholo le ho se mamelle, empa boima bo tlase bo batla bo le tlase. Ka lehlakoreng le leng, lichesele tse nang le lijo-thollo tse mahoashe le li-cobalt tse ngata li fana ka boima le matla a betere empa boima bo batlang bo le tlase.

Ka hona, ho khetha chisel e entsoeng ka samente ea carbide ha se taba ea ho phehella sephetho ka paramente e le 'ngoe. Ho e-na le hoo, e mabapi le ho fumana ntlha e nepahetseng ea ho leka-lekana pakeng tsa ho thatafala, ho tiea, le matla ho ipapisitsoe le maemo a khethehileng a ho bōptjoa ha mafika (mohlala, hore na a thata ebile a tiile kapa a robehile ebile a rarahaneng). Mokhoa ona o finyella bophelo bo bolelele ba tšebeletso le bokhoni bo phahameng ka ho fetisisa.