Umgomo Osebenzayo Wenhloko Elungisiwe Ye-Extrusion Yomshini We-Aluminium Extrusion

Ikhanda le-Extrusion le-aluminium extrusion

Ikhanda le-extrusion liyimishini ebaluleke kakhulu ye-extrusion esetshenziselwa inqubo ye-aluminium extrusion (Fig 1). Izinga lomkhiqizo ocindezelwe kanye nokukhiqiza okuphelele kwe-extruder kuncike kuyo.

Ikhanda le-Fig 1 Extrusion ekucushweni kwethuluzi elijwayelekile lenqubo ye-extrusion

Umdwebo 2Umklamo ojwayelekile wekhanda le-extrusion: ikhekhe le-extrusion nenduku ye-extrusion

Umdwebo 3 Umklamo ojwayelekile wekhanda le-extrusion: isiqu se-valve nekhekhe le-extrusion

Ukusebenza kahle kwekhanda le-extrusion kuncike ezintweni ezifana nalezi:

Ukuqondanisa sekukonke kwe-extruder

Ukusatshalaliswa kwezinga lokushisa komgqomo we-extrusion

Izinga lokushisa kanye nezakhiwo ezibonakalayo ze-billet ye-aluminium

Lubrication efanele

Ukugcinwa njalo

Umsebenzi wekhanda le-extrusion

Umsebenzi wekhanda le-extrusion ubonakala ulula kakhulu ekuqaleni. Le ngxenye ifana nokuqhubeka kwenduku ye-extrusion futhi iklanyelwe ukusunduza ingxubevange ye-aluminium eshisayo nethambile ngokuqondile ku-die. Ikhekhe le-extrusion kumele lenze imisebenzi elandelayo:

Dlulisa ingcindezi ku-alloy kumjikelezo ngamunye we-extrusion ngaphansi kwezimo zokushisa eziphezulu;

Khulisa ngokushesha ngaphansi kwengcindezi emkhawulweni onqunyiwe (Umfanekiso 4), ushiye kuphela ungqimba oluncane lwe-aluminium alloy kumkhono wesiqukathi;

Kulula ukuhlukanisa ku-billet ngemva kokuqedwa kwe-extrusion;

Ungacuphi noma iyiphi igesi, engalimaza umkhono wesitsha noma i-dummy block ngokwayo;

Usizo lokuxazulula izinkinga ezincane ngokuhambisana nomshini wokunyathelisa;

Iyakwazi ukukhwezwa/kwehliswe ngokushesha entweni yokucindezela.

Lokhu kufanele kuqinisekiswe yi-extruder centering enhle. Ukuphambuka ekuhambeni kwekhanda le-extrusion kusuka ku-extruder axis ngokuvamile kubonakala kalula ngokugqoka okungalingani, okubonakala emasongweni ekhekhe le-extrusion. Ngakho-ke, umshini wokunyathelisa kufanele uhambisane ngokucophelela futhi njalo.

Umdwebo 4 Ukususwa kwe-radial kwekhekhe elikhishwe ngaphansi kwengcindezi ye-extrusion

Insimbi yekhanda le-extrusion

Ikhanda le-extrusion liyingxenye yethuluzi le-extrusion elingaphansi kwengcindezi ephezulu. Ikhanda le-extrusion lenziwe nge-Tool die steel (isb i-H13 steel). Ngaphambi kokuqala umshini wokunyathelisa, ikhanda le-extrusion lishiswa ekushiseni okungenani okungu-300 ºС. Lokhu kwandisa ukumelana kwensimbi ekucindezelekeni okushisayo futhi kuvimbela ukuqhekeka ngenxa yokushaqeka okushisayo.

Fig5 H13 steel extrusion amakhekhe avela eDamatool

Izinga lokushisa billet, isitsha nokufa

I-billet eshisiwe ngokweqile (ngaphezulu kuka-500ºC) izonciphisa ukucindezela kwekhanda le-extrusion phakathi nenqubo ye-extrusion. Lokhu kungaholela ekwandiseni okunganele kwekhanda le-extrusion, okubangela ukuthi insimbi ye-billet igxishwe esikhaleni phakathi kwekhanda le-extrusion kanye nesitsha. Lokhu kungafinyeza impilo yesevisi ye-dummy block futhi kuholele nasekuguqukeni okuphawulekayo kwepulasitiki yensimbi yayo ngekhanda le-extrusion. Izimo ezifanayo zingenzeka ngeziqukathi ezinezindawo zokufudumeza ezihlukene.

Ukunamathela kwekhanda le-extrusion ku-billet kuyinkinga enkulu kakhulu. Lesi simo sivame kakhulu ngamapheshana omsebenzi amade nama-alloys athambile. Isixazululo sesimanje sale nkinga ukusebenzisa i-lubricant esekelwe ku-boron nitride kuze kube sekugcineni kwendawo yokusebenza.

Ukugcinwa kwekhanda le-extrusion

Ikhanda le-extrusion kufanele lihlolwe nsuku zonke.

Ukunamathela kwe-aluminium okungenzeka kunqunywa ukuhlolwa okubukwayo.

Hlola ukunyakaza kwamahhala kwenduku nendandatho, kanye nokuthembeka kokulungiswa kwazo zonke izikulufu.

Ikhekhe le-extrusion kumele likhishwe emshinini njalo ngesonto futhi lihlanzwe endaweni e-etching groove.

Ngesikhathi sokusebenza kwekhanda le-extrusion, ukwanda ngokweqile kungase kwenzeke. Kuyadingeka ukulawula lokhu kwandiswa ukuthi kungabi kukhulu kakhulu. Ukwenyuka ngokweqile kobubanzi bewasha yokucindezela kuzonciphisa kakhulu impilo yayo yesevisi.