Hard alloy ialloy inonyanya kuumbwa neimwe kana akati wandei refractory carbide (senge tungsten carbide, titanium carbide, zvichingodaro) muchimiro cheupfu, nehupfu hwesimbi (secobalt, nickel) inoshanda sebhainda.Iyo inogadzirwa kuburikidza nehupfu metallurgy process.Hard alloy inonyanya kushandiswa kugadzira maturusi ekucheka maturusi uye maturusi ekucheka emidziyo yakaoma uye yakaoma.Inoshandiswawo mukugadzira inotonhora yekushanda inofa, chaiyo geji, uye zvakanyanya kupfeka-inodzivirira zvikamu izvo zvinoshingirira kukanganiswa uye vibration.
▌ Hunhu hweHard Alloy
(1)High kuoma, kupfeka kuramba, uye red kuoma.
Hard alloy inoratidza kuoma kwe86-93 HRA pane tembiricha yekamuri, iyo yakaenzana ne69-81 HRC.Inochengetedza kuoma kwepamusoro patembiricha ye900-1000 ° C uye ine yakanakisa kupfeka kuramba.Kuenzaniswa nesimbi yepamusoro-yechishandiso simbi, yakaoma alloy inogonesa kucheka kumhanya inosvika 4-7 nguva yakakwira uye ine hupenyu hurefu hwakapetwa ka5-80.Inogona kucheka nemidziyo yakaoma nekuoma kwekusvika 50HRC.
(2)Simba rakakwirira uye yakakwirira elastic modulus.
Hard alloy ine yakakwira yekumanikidza simba inosvika 6000 MPa uye elastic modulus kubva (4-7) × 10 ^ 5 MPa, zvese zvakakwirira kupfuura izvo zve-high-speed simbi.Nekudaro, simba rayo rekuchinjika rakadzikira, kazhinji kubva pa1000-3000 MPa.
(3)Yakanakisa corrosion resistance uye oxidation kuramba.
Hard alloy inowanzo ratidza kuramba kwakanaka kumhepo yemhepo, acids, alkalis, uye haina kunyanyo konzeresa oxidation.
(4)Yakaderera coefficient yekuwedzera kwemutsara.
Hard alloy inochengetedza chimiro chakagadzikana uye zviyero panguva yekushanda nekuda kweiyo yakaderera coefficient yekuwedzera kwemutsara.
(5)Zvigadzirwa zvakaumbwa hazvidi mamwe machining kana kugaya zvakare.
Nekuda kwekuoma kwayo kwakanyanya uye brittleness, alloy yakaoma haipfuuriri kuchekwa kana kugaya zvakare mushure mehupfu simbi inogadzira uye sintering.Kana kumwe kugadziridzwa kuchidikanwa, nzira dzakaita semagetsi ekuburitsa machining, kucheka waya, electrolytic grinding, kana nyanzvi yekukuya nemavhiri ekugaya dzinoshandiswa.Kazhinji, zvigadzirwa zvakaomeswa zvearoyi zvezviyero zvakashongedzwa, zvinosungirirwa, kana kusungirirwa pamiviri yezvishandiso kana mold base kuti ishandiswe.
▌ Mhando Dzakajairwa dzeHard Alloy
Mhando dzakajairwa dzakaoma alloy dzakaiswa muzvikamu zvitatu zvichienderana nekuumbwa uye maitiro ekuita: tungsten-cobalt, tungsten-titanium-cobalt, uye tungsten-titanium-tantalum (niobium) alloys.Inonyanya kushandiswa mukugadzira tungsten-cobalt uye tungsten-titanium-cobalt yakaoma alloys.
(1)Tungsten-Cobalt Hard Alloy:
Izvo zvakakosha zvinoumba tungsten carbide (WC) uye cobalt.Giredhi inoratidzwa nekodhi "YG", inoteverwa nechikamu checobalt zvemukati.Semuenzaniso, YG6 inoratidza tungsten-cobalt hard alloy ine 6% cobalt zvemukati uye 94% tungsten carbide zvirimo.
(2)Tungsten-Titanium-Cobalt Yakaoma Alloy:
Izvo zvakakosha zvinoumba tungsten carbide (WC), titanium carbide (TiC), uye cobalt.Giredhi inoratidzwa nekodhi "YT", inoteverwa nechikamu chetitanium carbide zvirimo.Semuenzaniso, YT15 inoratidza tungsten-titanium-cobalt hard alloy ine 15% titanium carbide content.
(3)Tungsten-Titanium-Tantalum (Niobium) Hard Alloy:
Rudzi urwu rweakaomeswa alloy inozivikanwawo seyepasi rose yakaoma alloy kana versatile hard alloy.Zvinhu zvikuru zvinoti tungsten carbide (WC), titanium carbide (TiC), tantalum carbide (TaC), kana niobium carbide (NbC), uye cobalt.Giredhi rinoratidzwa nekodhi "YW" (mavambo e "Ying" uye "Wan," zvichireva kuti zvakaoma uye pasi rose muChinese), zvichiteverwa nenhamba.
▌ Zvishandiso zveHard Alloy
(1)Cutting Tool Materials:
Hard alloy inoshandiswa zvakanyanya mukugadzirwa kwezvinhu zvekucheka maturusi, zvinosanganisira maturusi ekutenderedza, milling cutters, planer blades, drills, etc. Tungsten-cobalt hard alloys akakodzera mapfupi chip machining eferrous uye asiri-ferrous simbi, senge simbi yakakandwa. , nendarira yakaumbwa, namatanda anoumbwa.Tungsten-titanium-cobalt yakaoma alloys akakodzera kureba chip machining esimbi uye mamwe simbi simbi.Pakati pealloys, avo vane yakakwira cobalt zvemukati vanokodzera hutsinye machining, nepo avo vane yakaderera cobalt zvemukati vakakodzera kupedzisa.Universal hard alloys ane hupenyu hurefu hwematurusi kana uchigadzira zvakaoma-ku-kucheka zvinhu sesimbi isina tsvina.
(2)Mold zvinhu:
Hard alloy inowanzoshandiswa sechinhu chekutonhora kudhirowa kufa, kutonhora kutsika kunofa, kutonhora extrusion kufa, uye kutonhora musoro kunofa.
Hard alloy inotonhora musoro inofa inopfekedzwa pasi pesimba kana yakasimba kukanganisa mamiriro.Izvo zvakakosha zvivakwa zvinodikanwa zvakanaka kusimba kusimba, kutsemuka kuomarara, kuneta simba, kubhenda simba, uye yakanakisa kupfeka kuramba.Kazhinji, yepakati kusvika yakakwira cobalt yemukati uye yepakati kusvika kune coarse-grained alloys inosarudzwa.Magiredhi akajairika anosanganisira YG15C.
Kazhinji, pane kutengeserana-kusiyana pakati pekupfeka kuramba uye kuoma mune zvakaoma alloy zvinhu.Kuvandudza kupfeka kuramba kunoguma nekudzikira kuomarara, nepo kuwedzera kuomarara kuchizotungamira mukudzikira.
Kana iyo yakasarudzwa mhando iri nyore kuburitsa kuputika kwekutanga uye kukuvadzwa mukushandiswa, zvakakodzera kusarudza mhando ine yakakwirira kuoma;Kana iyo yakasarudzwa mhando iri nyore kugadzira kupfeka kwekutanga uye kukuvadzwa mukushandiswa, zvakakodzera kusarudza mhando ine yakakwirira kuoma uye nani kupfeka kuramba.Aya magiredhi anotevera: YG15C, YG18C, YG20C, YL60, YG22C, YG25C kubva kuruboshwe kuenda kurudyi, kuomarara kunoderedzwa, kushomeka kwekupfeka kunoderedzwa, kusimba kunovandudzwa;Mukupesana, zvakapesana ndezvechokwadi.
(3) Maturusi ekuyeresa uye zvikamu zvisingapfeki
Tungsten carbide inoshandiswa kune abrasive pamusoro inlays uye zvikamu zvekuyeresa maturusi, chaiyo mabheji emuchina ekukuya, madhairekitori uye mabhawa ekutungamira emichina yekukuya isina pakati, uye zvikamu zvisingapfeki senge lathe nzvimbo.
Nguva yekutumira: Aug-02-2023
