Umahluko phakathi kwe-tungsten alloy kunye ne-cemented carbide

Nangona zombini i-tungsten alloy kunyei-carbide enesamenteluhlobo lwemveliso yealloyi yenguqu yensimbi ye-tungsten, zombini ingasetyenziselwa kwi-aerospace kunye nohambo lokuhamba ngenqwelomoya kunye neminye imimandla, kodwa ngenxa yomahluko wezinto ezongeziweyo, umlinganiselo wokwakheka kunye nenkqubo yemveliso, ukusebenza kunye nokusetyenziswa kwazo zombini zikwanobukhulu obukhulu. umahluko.

I. Ingcaciso

I-Tungsten alloy, ekwabizwa ngokuba yi-alloy gravity alloy ephezulu, yingxubevange enomgubo we-tungsten njengeyona mathiriyeli ikrwada kunye ne-nickel, intsimbi, ubhedu kunye nezinye izinto njengezixhobo ezincedisayo.Umxholo we-tungsten uphakathi kwe-85% kunye ne-99%.

I-carbide enesamente, ekwabizwa ngokuba yi-tungsten steel, oko kukuthi, i-alloy ene-refractory metal carbide efana ne-tungsten carbide njengesithako esiphambili kunye ne-cobalt, i-nickel, i-molybdenum kunye nezinye izinto njenge-binder.Umxholo wesibophelelo uphakathi kwe-10% kunye ne-20%.
Okwesibini, ukusebenza

I-alloy ethile ephezulu yomxhuzulane inenqanaba eliphezulu lokunyibilika, ubuninzi, amandla kunye nobulukhuni, iplastiki engcono, ukuxhathisa ubushushu, ukuxhathisa umhlwa, ukuxhathisa impembelelo, ukuxhathisa i-oxidation kunye nefuthe lokukhusela.

Intsimbi ye-Tungsten nayo ineempawu ezifanayo kwi-alloys ye-tungsten, nangona ubunzima bayo be-thermal kunye ne-resistant resistance benefits zicace kakhulu, ingakumbi kwinto yokuba ihlala ingatshintshi kwi-500 ° C kwaye isenobunzima obuphezulu kwi-1000 ° C.Nangona kunjalo, i-brittleness yayo iphezulu kakhulu, ngoko iqhuba inkqubo yokusika.

Okwesithathu, inkqubo yemveliso

Ukulungiswa kwamanyathelo e-tungsten alloy: 1) ukulungiswa kwezinto eziphathekayo: i-tungsten compounds ezifana ne-ammonium tungstate, izinto ezincedisayo ezifana ne-nickel, isinyithi, ubhedu kunye nezinye izinto okanye iikhompawundi;2) ukwenza umgubo: kukho indlela yokutshiza yokutshiza kunye ne-mechanical alloying method;3) ukwenza: emva kokuxuba i-tungsten powder kunye ne-ejenti yokwenza, i-extrusion ijojowe kumatshini wokwenza, emva koko iinxalenye ezinobunzima obunobunzima zinokulungiswa;I-4) i-sintering: emva konyango lwe-sintering, umbutho we-alloy ufana kakhulu kunye nokusebenza okubanzi okuphezulu kokusebenza ngokubanzi.

Amanyathelo okulungiselela i-carbide ene-cemented: 1) Susa ukungcola komhlabatungsten carbideamasuntswana kunye neengqolowa ze-cobalt;2) Gcoba izinto ezingentla kwaye uzixube kwi-mixer, uze ugaye ukuze ufumane i-alloy powder;3) Dlulisa i-alloy powder kwi-extrusion die ukuze ufumane i-carbide precursors, uze udibanise kunye nolwelo kwaye udibanise i-binder ukwenza i-metal powder slurry;4) Yenza i-slurry ibe ngumgubo nge-spray granulator, emva koko i-sinter kunye nokushisa ukunyanga.emva koko sintered kunye nobushushu baphathwe.