Ƙa'idar Aiki na Kafaffen Shugaban Fitar da Injin Fitar da Aluminum

Extrusion shugaban ga aluminum extrusion

Shugaban extrusion shine mafi mahimmancin kayan aikin da aka yi amfani da shi a cikin tsarin extrusion na aluminum (Fig 1). Ingancin samfurin da aka matse da kuma yawan aikin mai fitar da kayan ya dogara da shi.

Hoto na 1 Extrusion shugaban a cikin tsari na kayan aiki na yau da kullun don tsarin extrusion

Hoto 2Tsarin zane na shugaban extrusion: cake extrusion da extrusion sanda

Hoto na 3 Tsarin al'ada na extrusion kai: bawul mai tushe da kek extrusion

Kyakkyawan aiki na kai extrusion ya dogara da dalilai kamar:

Gabaɗaya jeri na extruder

Rarraba yawan zafin jiki na extrusion ganga

Zazzabi da kaddarorin jiki na billet aluminum

Lubrication daidai

Kulawa na yau da kullun

Aiki na extrusion kai

Ayyukan extrusion kai yana da sauƙi a kallon farko. Wannan bangare yana kama da ci gaba na sandar extrusion kuma an tsara shi don tura gawawwakin aluminum mai zafi da taushi kai tsaye ta cikin mutu. Keke extrusion dole ne yayi ayyuka masu zuwa:

Aiwatar da matsa lamba ga gami a cikin kowane extrusion sake zagayowar a karkashin high zafin jiki yanayi;

Da sauri faɗaɗa ƙarƙashin matsin lamba zuwa ƙayyadaddun iyaka (Hoto 4), barin kawai bakin ciki Layer na aluminum gami akan hannun rigar akwati;

Sauƙi don rabuwa daga billet bayan an gama extrusion;

Kada ku kama kowane gas, wanda zai iya lalata hannun rigar kwantena ko toshewar kanta;

Taimakawa don magance ƙananan matsaloli tare da daidaitawar latsa;

Ana iya hawa da sauri a kan sandar latsawa.

Dole ne a tabbatar da wannan ta hanyar mai kyau extruder tsakiya. Bambance-bambance a cikin motsi na extrusion shugaban daga extruder axis yawanci ana iya gane shi ta hanyar lalacewa mara kyau, wanda ke bayyane akan zoben kek na extrusion. Don haka, dole ne a daidaita latsa a hankali kuma akai-akai.

Hoto na 4 Matsar da kek ɗin da aka fitar a ƙarƙashin matsin lamba

Karfe ga extrusion kai

Shugaban extrusion shine ɓangare na kayan aikin extrusion wanda ke fuskantar babban matsin lamba. The extrusion shugaban da aka yi da kayan aiki mutu karfe (misali H13 karfe). Kafin fara latsawa, shugaban extrusion yana mai zafi zuwa zafin jiki na akalla 300 ºC. Wannan yana ƙara juriya na ƙarfe ga matsalolin zafi kuma yana hana tsagewa saboda girgizar zafi.

Fig5 H13 karfe extrusion da wuri daga Damatool

Zazzabi na billet, akwati da mutu

Billet mai zafi (sama da 500ºC) zai rage matsi na kan extrusion yayin aikin extrusion. Wannan na iya haifar da rashin isassun faɗaɗa kan extrusion, wanda ke sa ƙarfen billet ɗin ya matse cikin ratar da ke tsakanin kan extrusion da kwantena. Wannan na iya rage rayuwar sabis na toshe kuma har ma da haifar da nakasar filastik mai mahimmanci na ƙarfe ta wurin extrusion shugaban. Irin wannan yanayi na iya faruwa tare da kwantena tare da wurare daban-daban na dumama.

Manne kan extrusion kan billet babbar matsala ce. Wannan yanayin yana da mahimmanci musamman tare da dogayen kayan aiki masu tsayi da gami masu laushi. Maganin zamani na wannan matsala shine a yi amfani da man shafawa bisa boron nitride zuwa ƙarshen aikin.

Maintenance na extrusion kai

Dole ne a duba kan extrusion kowace rana.

An ƙaddara mannewar aluminium mai yuwuwar ta hanyar dubawa na gani.

Bincika motsi na kyauta na sanda da zobe, da kuma amincin gyare-gyaren duk screws.

Dole ne a cire kek ɗin extrusion daga latsa kowane mako kuma a tsaftace shi a cikin tsagi mai mutuwa.

A lokacin aiki na extrusion kai, wuce kima fadada iya faruwa. Wajibi ne a sarrafa wannan fadada don kada ya zama babba. Haɓakawa da yawa a cikin diamita na mai wanki mai matsa lamba zai rage mahimmancin rayuwar sabis.