Hino Fuso Universal Rear Bolt

1. Spheroidizing annealing na high-ƙarfi kusoshi

Lokacin da aka samar da ƙwanƙwasa hexagon socket ta hanyar yanayin sanyi, ainihin tsarin ƙarfe zai yi tasiri kai tsaye ga ikon ƙirƙirar yayin sarrafa kan sanyi. Sabili da haka, karfe dole ne ya sami filastik mai kyau. Lokacin da sinadaran sinadaran karfe ya kasance akai-akai, tsarin metallographic shine maɓalli mai mahimmanci da ke ƙayyade filastik. An yi imani da cewa ƙananan pearlite mai laushi ba ya dace da yanayin sanyi, yayin da pearlite mai kyau mai kyau zai iya inganta ƙarfin nakasar filastik na karfe.
Domin matsakaici carbon karfe da matsakaici carbon gami karfe tare da babban adadin high-ƙarfi fasteners, spheroidizing annealing da ake yi kafin sanyi jeri, don samun uniform da lafiya spheroidized pearlite mafi alhẽri saduwa da ainihin samar da bukatun.

2. Harsasai da tarwatsewar kusoshi masu ƙarfi

Tsarin cire farantin ƙarfe oxide daga sandunan ƙarfe mai sanyin kai yana tsigewa da raguwa. Akwai hanyoyi guda biyu: sarrafa injina da kuma pickling. Maye gurbin tsarin tsinken sinadari na sandar waya tare da lalata injina yana inganta yawan aiki kuma yana rage gurɓatar muhalli. Wannan tsarin ƙaddamarwa ya haɗa da hanyar lanƙwasa, hanyar fesa, da dai sauransu. Sakamakon lalata yana da kyau, amma ragowar sikelin ƙarfe ba za a iya cirewa ba. Musamman lokacin da ma'auni na sikelin oxide na baƙin ƙarfe yana da ƙarfi sosai, don haka lalatawar injin yana shafar kauri na sikelin ƙarfe, tsarin da yanayin damuwa, kuma ana amfani da shi a cikin sandunan ƙarfe na ƙarfe na ƙarfe don ƙarancin ƙarfi. Bayan an cire kayan aikin na'ura, sandar waya don na'urorin da ke da ƙarfi mai ƙarfi suna yin aikin tsinke sinadarai don kawar da duk ma'aunin baƙin ƙarfe oxide, wato, cirewar fili. Don ƙananan sandunan ƙarfe na ƙarfe na carbon, takardar ƙarfe da aka bari ta hanyar lalata injina mai yuwuwa ya haifar da rashin daidaituwa na tsararrun hatsi. Lokacin da ramin daftarin hatsi ya manne da takardar ƙarfe saboda jujjuyawar sandar waya da zafin jiki na waje, saman sandar waya yana samar da alamun hatsi na tsayi.