Hard alloy ke motsoako o entsoeng haholo-holo ka carbide e le 'ngoe kapa tse' maloa tse refractory (tse kang tungsten carbide, titanium carbide, joalo-joalo) ka mokhoa oa phofo, ka li-powders tsa tšepe (joaloka cobalt, nickel) tse sebetsang e le setlamo.E etsoa ka mokhoa oa phofo oa metallurgy.Hard alloy e sebelisoa haholo-holo bakeng sa ho etsa lisebelisoa tsa ho itšeha ka lebelo le phahameng le lisebelisoa tsa ho itšeha bakeng sa thepa e thata le e thata.E boetse e sebelisoa tlhahisong ea li-diesel tse batang, li-gauge tse nepahetseng, le lisebelisoa tse sa sebetseng haholo tse hanyetsanang le tšusumetso le ho thothomela.
▌ Litšobotsi tsa Hard Alloy
(1)Boima bo phahameng, ho hanyetsa ho apara, le boima bo bofubelu.
Alloy e thata e bonts'a boima ba 86-93 HRA mocheso oa kamore, e lekanang le 69-81 HRC.E boloka boima bo phahameng mochesong oa 900-1000 ° C 'me e na le khanyetso e ntle ea ho apara.Ha ho bapisoa le tšepe ea lisebelisoa tsa lebelo le phahameng, alloy e thata e nolofalletsa ho itšeha ka makhetlo a 4-7 'me e na le nako ea bophelo ea nako e telele ea 5-80.E ka khaola lisebelisoa tse thata ka boima ba ho fihla ho 50HRC.
(2)Matla a phahameng le modulus e phahameng ea elastic.
Alloy e thata e na le matla a phahameng a ho hatella ho fihlela ho 6000 MPa le modulus elastic ho tloha (4-7) × 10 ^ 5 MPa, ka bobeli e phahame ho feta tsa tšepe e phahameng.Leha ho le joalo, matla a eona a feto-fetohang a batla a le tlase, hangata a tloha ho 1000-3000 MPa.
(3)E babatsehang ho hanyetsa kutu le ho hanyetsa oxidation.
Hard alloy ka kakaretso e bonts'a khanyetso e ntle ho kutu ea sepakapaka, li-acids, alkalis, 'me ha e ratehe ho oxidation.
(4)Coefficient e tlase ea katoloso ea mela.
Alloy e thata e boloka sebopeho le litekanyo tse tsitsitseng nakong ea ts'ebetso ka lebaka la coefficient ea eona e tlaase ea ho atolosa linear.
(5)Lihlahisoa tse entsoeng ka sebōpeho ha li hloke mochine o eketsehileng kapa ho tsosolosa.
Ka lebaka la ho thatafala ha eona ho phahameng le brittleness, alloy e thata ha e tsoele pele ho itšeha kapa ho sila hape ka mor'a hore phofo ea metallurgy e thehoe le ho sintering.Haeba ho hlokahala ts'ebetso e eketsehileng, ho sebelisoa mekhoa e kang mochini o ntšang motlakase, ho seha terata, ho sila ka electrolytic, kapa ho sila ka mokhoa o khethehileng ka mabili a silang.Ka tloaelo, lihlahisoa tse thata tsa alloy tsa litekanyo tse ikhethileng li entsoe ka brazed, ho tlamisoa, kapa ho tlamelloa ka mochini holim'a 'mele oa lisebelisoa kapa metheo ea hlobo hore e sebelisoe.
▌ Mefuta e Tloaelehileng ea Hard Alloy
Mefuta e tloaelehileng ea alloy e thata e arotsoe ka mekhahlelo e meraro ho latela sebopeho le litšobotsi tsa ts'ebetso: tungsten-cobalt, tungsten-titanium-cobalt, le li-alloys tsa tungsten-titanium-tantalum (niobium).Tse sebelisoang haholo tlhahisong ke li-alloys tse thata tsa tungsten-cobalt le tungsten-titanium-cobalt.
(1)Alloy e thata ea Tungsten-Cobalt:
Likarolo tsa mantlha ke tungsten carbide (WC) le cobalt.Mophato o hlalosoa ke khoutu "YG", e lateloe ke peresente ea litaba tsa cobalt.Mohlala, YG6 e bonts'a motsoako o thata oa tungsten-cobalt o nang le 6% cobalt content le 94% tungsten carbide content.
(2)Alloy e thata ea Tungsten-Titanium-Cobalt:
Likarolo tsa mantlha ke tungsten carbide (WC), titanium carbide (TiC), le cobalt.Mophato o hlalosoa ke khoutu "YT", e lateloe ke peresente ea litaba tsa titanium carbide.Mohlala, YT15 e bonts'a motsoako o thata oa tungsten-titanium-cobalt o nang le 15% ea titanium carbide content.
(3)Alloy e thata ea Tungsten-Titanium-Tantalum (Niobium):
Mofuta ona oa alloy o thata o boetse o tsejoa e le universal hard alloy kapa versatile hard alloy.Likarolo tse ka sehloohong ke tungsten carbide (WC), titanium carbide (TiC), tantalum carbide (TaC), kapa niobium carbide (NbC), le cobalt.Mophato ona o hlalosoa ke khoutu "YW" (litlhaku tse qalang tsa "Ying" le "Wan," e bolelang hore ho thata ebile ho akaretsa ka Sechaena), e lateloe ke palo.
▌ Lisebelisoa tsa Hard Alloy
(1)Lisebelisoa tsa ho Seha:
Alloy Hard alloy e sebelisoa haholo ha ho etsoa lisebelisoa tsa ho itšeha, ho kenyelletsa le lisebelisoa tsa ho fetola, li-milling cutters, li-planer blades, li-drill, joalo-joalo. , koporo e entsoeng, le lehong le entsoeng ka motsoako.Li-alloys tse thata tsa Tungsten-titanium-cobalt li loketse bakeng sa machining a malelele a tšepe le litšepe tse ling tse nang le tšepe.Har'a li-alloys, tse nang le lihlahisoa tse phahameng tsa cobalt li loketse ho sebetsa ka thata, ha tse nang le likarolo tse tlaase tsa cobalt li loketse ho qeta.Li-alloys tse thata tsa Universal li na le bophelo bo bolelele ba lisebelisoa ha ho etsoa lisebelisoa tse thata ho seha joalo ka tšepe e sa hloekang.
(2)Lisebelisoa tsa Mold:
Hard alloy hangata e sebelisoa e le thepa ea ho taka e batang, setempe se batang se shoa, ho shoa ha serame, 'me lihlooho tse batang lia shoa.
Lihlooho tse batang tsa motsoako o thata li ka sebelisoa ka tlas'a tšusumetso kapa maemo a matla.Lintho tse ka sehloohong tse hlokahalang ke ho ba le tšusumetso e matla, ho tiea ha fracture, matla a ho khathala, matla a ho kobeha, le ho se mamelle hantle.Ka tloaelo, ho khethoa li-cobalt tse mahareng ho isa holimo le li-alloys tse mahareng ho isa ho mahoashe.Limaraka tse tloaelehileng li kenyelletsa YG15C.
Ka kakaretso, ho na le khoebo pakeng tsa ho hanyetsa ho apara le ho tiea ha thepa e thata ea alloy.Ho ntlafatsa ho hanyetsa ho tla etsa hore ho fokotsehe ho thata, ha ho matlafatsa ho tiea ho tla lebisa ho fokotseha.
Haeba letšoao le khethiloeng le le bonolo ho hlahisa ho phunyeha ha pele le tšenyo e sebelisoang, ho loketse ho khetha letšoao le nang le boima bo phahameng;Haeba letšoao le khethiloeng le le bonolo ho hlahisa liaparo tsa pele le tšenyo e sebelisoang, ho loketse ho khetha letšoao le nang le boima bo phahameng le ho hanyetsa ho apara hantle.Lihlopha tse latelang: YG15C, YG18C, YG20C, YL60, YG22C, YG25C ho tloha ka letsohong le letšehali ho ea ho le letona, boima bo fokotsehile, ho hanyetsa ho apara ho fokotsehile, ho tiea ho ntlafala;Ho fapana le hoo, se fapaneng ke ’nete.
(3) Lisebelisoa tsa ho lekanya le likarolo tse sa senyeheng
Tungsten carbide e sebelisoa bakeng sa li-inlays tsa holim'a metsi le likarolo tsa lisebelisoa tsa ho lekanya, li-bearings tse nepahetseng tsa mechine e silang, litataiso le mekoallo ea tataiso ea mechine e silang e se nang setsi, le likarolo tse sa senyeheng tse kang litsi tsa lathe.
Nako ea poso: Aug-02-2023
