Hard alloy ne da farko hada da daya ko da yawa refractory carbide (kamar tungsten carbide, titanium carbide, da dai sauransu) a foda form, tare da karfe foda (kamar cobalt, nickel) hidima a matsayin mai ɗaure.Ana kera shi ta hanyar tsarin ƙarfe na foda.Hard gami da aka yafi amfani da Manufacturing high-gudun sabon kayan aikin da yankan kayan aikin ga wuya da m kayan.Hakanan ana amfani dashi a cikin samar da mutuwar aikin sanyi, ma'aunin ma'auni, da abubuwan da ba su da ƙarfi sosai waɗanda ke da juriya ga tasiri da girgiza.
▌ Halayen Hard Alloy
(1)Babban taurin, juriya, da taurin ja.
Hard alloy yana nuna taurin 86-93 HRA a zafin jiki, wanda yayi daidai da 69-81 HRC.Yana kiyaye babban taurin a yanayin zafi na 900-1000 ° C kuma yana da kyakkyawan juriya na lalacewa.Idan aka kwatanta da ƙarfe na kayan aiki mai sauri, gami da ƙarfi yana ba da damar yanke saurin da suka fi girma sau 4-7 kuma yana da tsawon rayuwa wanda shine sau 5-80 ya fi tsayi.Yana iya yanke ta cikin abubuwa masu wuya tare da taurin har zuwa 50HRC.
(2)Ƙarfi mai ƙarfi da ƙarfin roba mai girma.
Hard alloy yana da babban ƙarfin matsawa har zuwa 6000 MPa da modul na roba wanda ke jere daga (4-7) × 10^5 MPa, duka biyun sama da na ƙarfe mai sauri.Duk da haka, ƙarfin sassauƙansa yana da ɗan ƙaranci, yawanci daga 1000-3000 MPa.
(3)Kyakkyawan juriya na lalata da juriya na iskar shaka.
Hard gami gabaɗaya yana nuna juriya mai kyau ga lalatawar yanayi, acid, alkalis, kuma ba shi da haɗari ga oxidation.
(4)Ƙananan ƙididdiga na fadada layin layi.
Hard alloy yana kula da tsayayyen siffa da girma yayin aiki saboda ƙarancin haɓakarsa na faɗaɗa madaidaiciya.
(5)Samfuran da aka siffa ba sa buƙatar ƙarin mashin ɗin ko sake niƙawa.
Saboda ta high taurin da brittleness, m gami ba ya sha kara yankan ko regrinding bayan foda karafa forming da sintering.Idan ana buƙatar ƙarin sarrafawa, ana amfani da hanyoyin kamar injin fitarwa na lantarki, yanke waya, niƙa na lantarki, ko niƙa na musamman tare da ƙafafun niƙa.Yawanci, samfuran gami da ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙima ana ɗaure su, ɗaure, ko manne da injiniyoyi a jikin kayan aiki ko ginshiƙan ƙira don amfani.
▌ Nau'o'in Hard Alloy gama gari
Nau'o'in gawa na gama gari an rarraba su zuwa nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan kayan aiki: tungsten-cobalt, tungsten-titanium-cobalt, da tungsten-titanium-tantalum (niobium).Abubuwan da aka fi amfani dasu wajen samarwa sune tungsten-cobalt da tungsten-titanium-cobalt hard gami.
(1)Tungsten-Cobalt Hard Alloy:
Abubuwan farko sune tungsten carbide (WC) da cobalt.Ana nuna darajar ta lambar "YG", sannan kuma adadin adadin abubuwan da ke cikin cobalt.Misali, YG6 yana nuna tungsten-cobalt hard gami da 6% cobalt abun ciki da 94% tungsten carbide abun ciki.
(2)Tungsten-Titanium-Cobalt Hard Alloy:
Abubuwan farko sune tungsten carbide (WC), titanium carbide (TiC), da cobalt.Ana nuna darajar ta lambar "YT", sannan kuma adadin adadin abun ciki na carbide na titanium.Misali, YT15 yana nuna tungsten-titanium-cobalt hard gami da 15% titanium carbide abun ciki.
(3)Tungsten-Titanium-Tantalum (Niobium) Hard Alloy:
Wannan nau'in na'ura mai wuyar gaske kuma ana kiranta da haɗin gwal na duniya ko kuma mai ƙarfi mai ƙarfi.Babban abubuwan da aka gyara sune tungsten carbide (WC), titanium carbide (TiC), tantalum carbide (TaC), ko niobium carbide (NbC), da cobalt.Ana nuna darajar ta lambar "YW" (baƙaƙen "Ying" da "Wan," ma'ana mai wuya da duniya a cikin Sinanci), sannan kuma lamba.
▌ Aikace-aikace na Hard Alloy
(1)Kayan Aikin Yanke:
Hard gami da ake amfani da ko'ina a cikin samar da yankan kayan aiki kayan, ciki har da juya kayan aikin, milling cutters, planer ruwan wukake, drills, da dai sauransu Tungsten-cobalt wuya gami sun dace da gajeren guntu machining na ferrous da kuma wadanda ba ferrous karafa, kamar jefa baƙin ƙarfe. , Tagulla na simintin gyare-gyare, da kuma itace mai hade.Tungsten-titanium-cobalt hard gami sun dace da dogon guntu machining na karfe da sauran ferrous karafa.Daga cikin abubuwan haɗin gwiwar, waɗanda ke da babban abun ciki na cobalt sun dace da mashigin mashin ɗin, yayin da waɗanda ke da ƙananan abun ciki na cobalt sun dace don kammalawa.Universal hard Alloys suna da matuƙar tsawon rayuwar kayan aiki lokacin yin aiki da wahala-yanke kayan kamar bakin karfe.
(2)Kayayyakin Mold:
Hard alloy yawanci ana amfani da shi azaman kayan aikin sanyi ya mutu, tambarin sanyi ya mutu, sanyin extrusion ya mutu, da kan sanyi ya mutu.
Hard gami sanyi kan mutun ana sawa a ƙarƙashin tasiri ko yanayin tasiri mai ƙarfi.Maɓallin mahimman abubuwan da ake buƙata shine tasirin tasiri mai kyau, ƙaƙƙarfan karyewa, ƙarfin gajiya, ƙarfin lanƙwasa, da ingantaccen juriya.Yawanci, ana zaɓar matsakaici zuwa babban abun ciki na cobalt da matsakaici zuwa gaɗaɗɗen hatsi.Makin gama gari sun haɗa da YG15C.
Gabaɗaya, akwai ciniki tsakanin juriya da tauri a cikin kayan gami mai wuya.Inganta juriya na sawa zai haifar da raguwar tauri, yayin da haɓaka tauri ba makawa zai haifar da raguwa.
Idan alamar da aka zaɓa yana da sauƙi don samar da fashewar farko da lalacewa a cikin amfani, ya dace a zabi alamar da tauri mafi girma;Idan alamar da aka zaɓa yana da sauƙi don samar da lalacewa da wuri da lalacewa a cikin amfani, yana da kyau a zabi alama tare da taurin mafi girma kuma mafi kyawun juriya.Darajojin da ke biyowa: YG15C, YG18C, YG20C, YL60, YG22C, YG25C daga hagu zuwa dama, taurin yana raguwa, rage juriya, an inganta taurin;Akasin haka, akasin haka.
(3) Kayan aikin aunawa da sassa masu jurewa
Tungsten carbide ana amfani da shi don abrasive surface inlays da sassa na aunawa kayan aikin, madaidaicin bearings na nika inji, jagorori da jagora sanduna na tsakiya nika inji, da kuma lalacewa juriya sassa kamar lathe cibiyoyin.
Lokacin aikawa: Agusta-02-2023
