Iko kuvandudza uye kugadzirwa kwezvinhu zvisina magineti yakaoma alloy kuratidzwa kwakakura kwezvinhu zvitsva zvakaoma alloy. Hard alloy inogadzirwa nekunyudza iyo refractory simbi carbides yeIV A, VA, uye VI A mapoka mune periodic tafura yezvinhu (senge tungsten carbide WC), uye shanduko yesimbi yeboka resimbi (cobalt Co, nickel Ni, iron Fe) sechikamu chekubatanidza kuburikidza nehupfu metallurgy indasitiri. Iyo tungsten carbide iri pamusoro haina magineti, nepo Fe, Co, uye Ni ese ari magineti. Kushandisa Ni sebhainda chinhu chinodiwa pakugadzira nonmagnetic alloys.
Kune nzira dzinotevera dzekuwana WC Ni series nonmagnetic hard alloys:1. Nyatsodzora carbon content
Kufanana neWC Co alloy, kabhoni yemukati ndiyo inonyanya kukanganisa iyo yakasimba mhinduro kugona kweW muchikamu chekubatanidza cheWC Ni alloy. Ndiko kuti, iyo yakaderera iyo kabhoni yemukati kabhoni muchikamu chikamu mune alloy, iyo yakakura iyo yakasimba mhinduro kugona kweW muNi bonding chikamu, ine mutsauko unosvika 10-31%. Kana iyo yakasimba mhinduro yeW muNi bonded phase inodarika 17%, alloy inova demagnetized. Izvo zvakakosha zveiyi nzira ndeyekuwana nonmagnetic hard alloys nekudzikisa kabhoni yemukati uye kuwedzera iyo yakasimba mhinduro yeW muchikamu chekubatanidza. Mukuita, WC poda ine carbon content yakaderera pane theoretical carbon content inowanzoshandiswa, kana W powder inowedzerwa kumusanganiswa kuti uwane chinangwa chekubudisa low-carbon alloys. Nekudaro, zvakanyanya kuoma kugadzira nonmagnetic alloys chete nekudzora kabhoni yemukati.
2. Wedzera chromium Cr, molybdenum Mo, tantalum Ta
Iyo yakakwira kabhoni WC-10% Ni (wt% nehuremu) alloy inoratidza ferromagnetism pane tembiricha yekamuri. Kana inopfuura 0.5% Cr, Mo, uye 1% Ta yakawedzerwa muchimiro chesimbi, iyo yakakwira kabhoni alloy inogona kushandura kubva kuferromagnetism kuenda kune isiri-magnetism. Nekuwedzera Cr, iyo magnetic properties yealloy yakasununguka kubva kune kabhoni yemukati, uye Cr ndiyo mugumisiro wehuwandu hwekugadzirisa kwakasimba muchikamu chekubatanidza chealloy, seW. isiri-magnetic alloy pane imwe kabhoni yemukati. Nekuda kweiyo yakaderera yakasimba mhinduro yeMo naTa muchikamu chekubatanidza, mazhinji acho anongotora kabhoni muWC kuti igadzire inoenderana carbides kana carbide yakasimba mhinduro. Nekuda kweizvozvo, iyo alloy composition inoshanduka ichienda kune yakaderera-carbon side, zvichikonzera kuwedzera kweiyo yakasimba mhinduro yeW muchikamu chekubatanidza. Iyo nzira yekuwedzera Mo naTa ndeyekuwana iyo isiri-magnetic alloy nekudzikisa iyo kabhoni yemukati. Kunyangwe zvisiri nyore kudzora sekuwedzera Cr, zviri nyore kudzora kabhoni yemukati pane yakachena WC-10% Ni alloy. Huwandu hwekabhoni hwemukati hwakawedzerwa kubva pa5.8-5.95% kusvika 5.8-6.05%.
Email:oiltools14@welongpost.com
Bata: Nyasha Ma
Nguva yekutumira: Oct-09-2023
