Dhuumaha dhexroor-weyn ee aan sinaba lahaynhabka wax soo saarka kulaylka

Habka wax-soo-saarka kulaylka, oo ay ku jiraan dhexroor-ballaaran-ballaadhan-kulul-kulul-la'aanta iyo kululaynta kulul ee labada hab, kii hore waxaa inta badan loo isticmaalaa soo-saarka tuubooyinka isku-dhafka ah, kaas oo khuseeya wax-soo-saarka tuubooyinka isku-dhafka ah.

Rolling waa hab dhaqameed lagu diyaarinayo tuubo bir ah oo dhexroor-weyn ah.Dulqaadka kulul ee walaxda cadaadiska alxanka, haddii qallafsanaanku uu weyn yahay, cadaadiska ay samaynayso duubka birta waxay dhaawici doontaa oogada filimka oksaydhka, oogada atomiga oo taabtay, si ay labada dusha isku wada alxaan.Khasaaraha soo noqnoqda waa:

Faa'iidooyinka duubista: wax soo saarka sare, tayada wanaagsan, qiimaha jaban, waxayna badbaadin kartaa wax badan oo dharbaaxo iyo jeexjeexa alaabta macdan, sidaas darteed waa codsi aad u ballaaran oo tiknoolajiyada wax soo saarka walxaha isku dhafan.Wareegga xaashida isku dhafan ee isku dhafan 90% wadarta saxanka isku dhafan, waxaana badanaa lagu dabaqaa dhumucda gidaarka tuubada ee ka yar 32mm ee farsamaynta.

Khasaaraha soo noqnoqda: maalgelin hal mar ah, laakiin sidoo kale wax badan oo ka mid ah isku-dhafka walxaha laguma gaari karo duubista adag.Hadda waa tignoolajiyada ugu ballaaran ee loo isticmaalo isticmaalka birta duuban, birta aan la isku dhejin ee isku dhafan ee tuubooyinka wax soo saarka.

Bixinta kulul waxaa guud ahaan loo sameeyaa tuubada bi-biraha ah, oo loo yaqaan extrusion isku dhafan (coextrude).Isku-duubnida hadda waa habka ugu wanaagsan ee lagu soo saari karo birta aan birta lahayn iyo tuubo isku dhafan oo nikkel ah oo aad u sareysa, Birta Japan oo ay soo saartay habkan 8in (203.2mm) oo ka hooseeya tuubada isku dhafan ee bimetallic.Waa dhexroor-ballaaran oo ka kooban laba ama in ka badan oo bir ah oo bannaan ayaa la kululeeyaa ilaa 1200℃, ka dibna extruded dhex meel bannaan oo annular ay sameeyeen caaryada iyo mandrel.Marka extrusion billet cross-section la dhimay 10: 1, cadaadis extrusion sare iyo heerkulka at interface soo saaray saamaynta alxanka "cadaadiska alxanka", kor u faafinta degdeg ah oo baahsan ee interface ka dhexeeya isku darka si loo gaaro interface bonding metallurgical.Ka hor inta aan habka wax soo saarka tube ka kooban extrusion, waxaa jira saddex: daloolin billet been abuur ah iyo balaariyay by extrusion kulul helay;shubista lafdhabarta tooska ah ee centrifugal;Qaybaha budada ah ee u adkaysta daxalka.Waxaa jira laba walxood oo bir ah oo cayriin ah oo loo isticmaalo gudaha iyo dibadda budada, oo loo yaqaan "NUVAL" tignoolajiyada, waxay horumarin kartaa alaabo cusub, laakiin kharashka ayaa aad u sarreeya diyaarinta budada.Khasaaraha isku-dhafka ah waa:

Faa'iidooyinka extrusion kulul: Interface waa metallurgically bond;ciidamada ku lug leh geedi socodka extrusion gabi ahaanba waa stress, waxa ay si gaar ah si fiican ugu haboon workability kulul, daawaha sare processing plasticity hoose ee biraha.

Khasaaraha ka mid ah extrusion kulul: Sida lagu go'aamiyo habka extrusion ah oo ay weheliyaan xubno interface fidin aad u gaaban, sida caadiga ah ay sabab u tahay joogitaanka filimada oxide ayaa la saameeyay, ilaa hadda xaddidan extrusion ka kooban birta carbon, ahama iyo Alloys nikkel sare u dhexeeya. .Waxaa la xusay in iska caabin yar oo qallafsan ee extrusion kulul, jidaynayey darajo weyn oo qallafsanaan kasta, taasoo keentay in roughness dusha sare, oo sidaas daraaddeed sidoo kale noqon qabow dheeraad ah rogid extrusion kulul (ama sawir) ee habka wax soo saarka tuubo isku dhafan. .