Zaɓin zazzabi mai zafi don PC ƙarfe shigar da murhun wuta

(1) Ka’idar zaɓar zazzabi mai zafi don ƙarfe PC Mafi kyawun tsarin ƙirar PC a ƙarƙashin yanayin sabis shine mayaƙan mayaƙa. Wannan ƙungiyar tana da mafi kyawun juriya ga annashuwar damuwa. Dangantaka tsakanin zafin zafin jiki da kaddarorin inji na ƙananan ƙarfe uku na babba, matsakaici da ƙarami. Za’a iya samun troostite mai zafi ta hanyar zafin jiki a matsakaicin zafin jiki (350 ~ 500 ° C), kuma ƙimar annashuwarsa ita ce mafi ƙanƙanta, wato juriya ga hutawar damuwa shine mafi kyau. Saboda haka, PC karfe

Zaɓin zazzabi mai zafi na shigowa dumama tanderu dole ne tabbatar da cewa martensite da aka kashe an canza shi zuwa runduna, wato ana amfani da zafin zafin matsakaici. Zazzabi mai zafi na silicon ingot low-alloy PC steel induction dumama wutar lantarki shine 400-500 ° C.

(2) Tsarin juriya na shakatawa na damuwa na PC karfe Karfin shakatawa na damuwa na ƙarfe shine kayan aikin injin da ke da alaƙa da rayuwar sabis na ƙarfe na PC. Yana nufin tsari wanda naƙasasshen naƙasasshen ƙarfe ya canza zuwa naƙasasshen filastik a ƙarƙashin tashin hankali. Da sauri tsarin canzawa, mafi girma naƙasasshen filastik na ƙarfe kuma mafi kusa shine karaya. Lokacin da gurɓataccen filastik ya kai iyaka, ƙarfe ya karye. Saboda haka, ana fatan ƙaramin saurin wannan canjin, tsawon rayuwar sabis na ƙarfe. A saboda wannan dalili, yana da kyawawa cewa ƙimar annashuwa na kayan ƙarfe yana da ƙanƙanta. Hanya mai inganci don rage ƙimar annashuwa ita ce ƙara ƙarfin yawan amfanin ƙasa da kuma kula da tauri mai kyau. Tsarin juriya na damuwa na ƙarfe na PC yana da ɗan alaƙa da abun da ke cikin sinadaran. Yawanci ya dogara da tsarin ƙirar ƙarfe na ƙarfe da aka gama. Binciken inji na juriya na hutawar damuwa na sifofi daban -daban na zafin martensite kamar haka.

Tempered troostite samfuri ne mai zafin jiki a matsakaicin zafin jiki kuma yana da mafi kyawun juriya ga annashuwar damuwa. Tempered troostite wani tsari ne mai ƙyalƙyali na ƙyallen ciminti wanda aka rarraba akan jikin igiyar baƙin ƙarfe. Irin wannan ƙaramin ƙanƙara yana ba da ƙarfe ƙarfin ƙarfin yawan amfanin ƙasa da wani taurin kai, da tsayayya mai ƙarfi ga gurɓataccen filastik.

Sorbite mai zafi shine samfurin zafin zafin zafin jiki, kuma juriyar hutawar danniya ta ɗan ragu fiye da na mayaƙan iska. Sorbite mai zafi wani tsari ne wanda ya ƙunshi polygonal ferrite da granite ciminti. Ƙarfinsa yana da girma, amma saboda tsananin filastik da taurin kai, juriyarsa ga gurɓataccen filastik yana da rauni.

Tempered martensite samfuri ne mai ƙarancin zafin jiki, kuma juriyarsa ga hutawar damuwa shine mafi munin. Babban dalili shi ne cewa martensite mai zafin rai shine babban madaidaicin madaurin carbon a cikin ferrite. Kodayake ƙarfinsa da taurinsa suna da yawa, yana da rauni, mara ƙarfi kuma yana da saurin canza tsarin, wanda ke haifar da rashin jituwa ta danniya.

Dangane da binciken da ke sama, troostite mai zafin rai yana da halaye na tsayayyen tsari da dacewa daidai da kaddarorin injin daban -daban, don ƙarfe yana da mafi kyawun juriya ga annashuwa.