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A cikin aiwatar da aiki, ana sawa farantin muƙamuƙi sau da yawa, wanda ke shafar aikin yau da kullun na muƙamuƙi. Wannan takarda tana nazarin ƙananan ƙarfe na ƙarfe na baƙin ƙarfe na muƙamuƙi, kuma ya tattauna canjin dokar taurin farantin muƙamuƙi da juriya, ta yadda za a tantance zafin zafin lokacin da farantin muƙamuƙi sa juriya ya kai matsayi mai kyau.

 Zaɓin kayan muƙamuƙi

1. A cikin masana'anta, farantin muƙamuƙi mai motsi da kafaffen farantin muƙamuƙi ana yin su da ƙarfe mai ƙarfi na manganese, babban layin ɗaukar hoto da eccentric bearing liner ana yin su da simintin babbitt gami, farantin muƙamuƙi an yi shi da baƙin ƙarfe don inganta shi. karko. Farantin muƙamuƙi na muƙamuƙi yana buƙatar kasancewa cikin sabis a ƙarƙashin lalacewa mai jurewa, juriya mai ƙarfi da ƙaƙƙarfan yanayi. Daban-daban masana'antun yi amfani da daban-daban muƙamuƙi farantin kayan, kamar babban manganese karfe, matsakaici manganese karfe, gami jefa baƙin ƙarfe, matsakaici carbon low gami lalacewa-resistant karfe da high chromium simintin ƙarfe.

2. Medium-carbon low-alloy wear-resistant karfe ana samun shi ta hanyar ƙara nau'ikan abubuwan gami iri-iri kamar Cr, Si, Mn, Mo, V akan matsakaicin ƙarfe na carbon, kuma jimlar abun ciki bai wuce 5 ba. %. Irin wannan matsakaici-carbon low-alloy lalacewa-resistant karfe iya yadda ya kamata daidaita daban-daban carbon abun ciki da kuma alloy element abun ciki, don haka za a iya daidaita da daban-daban zafi magani matakai don samun daban-daban na inji Properties, don haka ya jawo hankali da kuma aikace-aikace. A cikin wannan takarda, an yi nazarin juriya na lalacewa na matsakaiciyar carbon low alloy ZG42Mn2Si1REB, kuma an tattauna ka'idar canjin taurin wuya da juriya tare da zafin jiki na quenching, kuma an sami ingantaccen tsarin kula da zafi.

 Tya zabi tsarin maganin zafi

Dangane da halaye na ƙarfe na ZG42Mn2Si1REB, tsarin martensite da aka samu bayan quenching yana da ƙarfi mafi girma kuma mafi kyawun juriya. Uku zazzabi maki na 870 ℃, 900 ℃ da 930 ℃ aka zaba domin zafi magani, da tempering zafin jiki ne uniformly gyarawa a 230 ℃. Saboda kayan ba ya ƙunshi Mo element, don tabbatar da taurin, 5% Nacl bayani ana amfani dashi don sanyaya.

 Sakamako da bincike

1. Tasirin zafin jiki na quenching akan taurin da juriya

An auna taurin samfuran da aka kashe a yanayin zafi daban-daban ta HR-150A Rockwell hardness meter, yana auna maki 5 kowane lokaci sannan ɗaukar matsakaicin ƙimar. An gano cewa tare da karuwar zafin jiki, taurin quenching ya fara karuwa sannan ya ragu. Lokacin da quenching zafin jiki ne 870 ℃, da taurin ne HRC53. Lokacin da zafin jiki ya tashi zuwa 900 ℃, taurin kuma ya tashi zuwa HRC55. Ana iya ganin cewa taurin yana ƙaruwa tare da karuwar zafin jiki; Lokacin da zafin jiki ya ci gaba da karuwa zuwa 930 ℃, taurin yana raguwa zuwa HRC54, kuma ana iya gano cewa taurin ya fi girma lokacin da aka kashe a 900 ℃. Sabili da haka, tare da haɓakar zafin jiki, asarar nauyi yana raguwa. Lokacin da zafin jiki ya ci gaba da tashi zuwa 930 ℃, asarar nauyi yana ƙaruwa zuwa 3.5mg. Ana iya ganin cewa lokacin da aka kashe a 900 ℃, taurinsa yana da yawa kuma asarar nauyi ba ta da yawa. Matsakaicin ƙarancin ƙarfe na ƙarfe mara ƙarfi ZG42Mn2Si1REB yana da juriya mai kyau, wanda kuma ya nuna cewa tsari a wannan lokacin shine daidaitaccen tsarin kula da zafi.

2. Kwatanta juriya na lalacewa tsakanin matsakaicin carbon low alloy da babban manganese karfe

Don kwatanta mafi girman juriya na matsakaicin carbon alloy karfe ZG42Mn2Si1REB, an kwatanta wannan kayan tare da babban ƙarfe na manganese ZGMn13. Daga cikin su, an gwada ZG42Mn2Si1REB bisa ga abubuwan fasaha da aka ambata a sama na quenching a 900 ℃ da tempering a 230 ℃, kuma babban manganese karfe ZGMn13 da aka bi da ruwa toughing. Sakamakon gwaji ya nuna cewa juriya na lalacewa na farko shine sau 1.5 fiye da na karshen, wanda ke nuna cewa farantin jaw na matsakaicin carbon low alloy karfe ya yi cikakken aiki da yuwuwar kayan aiki kuma yana da kyakkyawan juriya a ƙarƙashin yanayin kula da zafi mai kyau.

Dangane da farashin kayan, babban ƙarfe na manganese ya ƙunshi har zuwa 13% Mn, don haka yana buƙatar cinye abubuwan gami da yawa. Idan aka kwatanta da babban ƙarfe na manganese, matsakaicin carbon low gami karfe ZG42Mn2Si1REB ƙunshi kawai 3% ~ 4% gami abubuwa, kuma ba ya dauke da high-farashin Cr da Mo abubuwa, don haka yana da wani babban farashin gasa fa'ida. Bugu da kari, la'akari da zafi magani tsari, da matsakaici carbon low gami karfe ne quenched a 900 ℃ da tempered a 230 ℃, yayin da ruwa toughening jiyya na high manganese karfe sau da yawa wuce 1000 ℃, don haka da quenching zafin jiki na tsohon ne m. lokacin dumama ya fi guntu, kuma tasirin ceton makamashi ya fi ban mamaki. Mafi kyawun tsarin kula da zafi an yi amfani da farantin muƙamuƙi na crusher, wanda a fili ya inganta juriya, kuma an tsawaita sake zagayowar farantin muƙamuƙi daga 150d zuwa 225d, tare da fa'idodin tattalin arziƙi.

Ta hanyar bincike a kan lalacewa juriya na muƙamuƙi farantin matsakaici carbon low gami karfe na jaw crusher, sakamakon nuna cewa a lokacin da quenched a 900 ℃, da microstructure bayan quenching ne martensite, a wannan lokaci, da taurin ne mafi girma, da lalacewa nauyi. hasara yana da ƙasa, kuma juriya na lalacewa ya fi kyau.

Shanvim a matsayin mai ba da kayayyaki na duniya na murƙushe sassa, muna ƙera mazugi na mazugi sanye da sassa don nau'ikan nau'ikan murƙushe daban-daban. Muna da fiye da shekaru 20 na tarihi a fagen CRUSHER WEAR PARTS. Tun daga 2010, mun fitar da kayayyaki zuwa Amurka, Turai, Afirka da sauran ƙasashe na duniya.