Aluminium Extrusions

Extrusionndi njira yomwe mbali zowongoka zazitali zimatha kupangidwa.Magawo omwe amatha kupangidwa amasiyanasiyana kuchokera ku zozungulira zolimba, zamakona anayi, mpaka mawonekedwe a L, mawonekedwe a T.Machubu ndi mitundu ina yambiri yosiyanasiyana.Extrusion imachitika pofinya zitsulo pabowo lotsekedwa kudzera mu chida, chomwe chimatchedwa kufa pogwiritsa ntchito makina osindikizira kapena hydraulic press.

Extrusion imapanga mphamvu zopondereza komanso zometa ubweya mu katundu.Palibe chopondera chomwe chimapangidwa, chomwe chimapangitsa kusinthika kwakukulu kukhala kotheka popanda kung'amba chitsulo.Pang'onopang'ono pomwe zopangira zilimo zimakutidwa ndi zinthu zosamva kuvala.Izi zitha kupirira zolemetsa zazikulu zomwe zimapangidwira zinthu zikakankhidwa kufa.

Zowonjezera, nthawi zambiri zimachepetsa kufunikira kwa makina achiwiri, koma sizikhala zolondola molingana ndi mawonekedwe kapena kumalizidwa kwapamwamba monga zida zamakina.Kumaliza pamwamba pazitsulo ndi 3um;(125 uin), ndipo Aluminium ndi Magnesium ndi 0.8 um (30 uin).Komabe, njirayi imatha kupanga mitundu yambiri yodutsana yomwe imakhala yovuta kupanga yotsika mtengo pogwiritsa ntchito njira zina.Makulidwe ochepa achitsulo ndi pafupifupi 3 mm (0.120 mkati), pomwe Aluminiyamu ndi Magnesium ndi pafupifupi 1mm (0.040 mkati).Magawo ocheperako ndi 250 mm2 (0.4 in2) achitsulo komanso ocheperapo a Aluminium ndi Magnesium.Ngodya yocheperako ndi fillet radii ndi 0.4 mm (0.015 mu) ya Aluminium ndi Magnesium, ndipo chitsulo, utali wa ngodya wocheperako ndi 0.8mm (0.030 mu) ndi 4 mm (0.120 mu) fillet radius.

Cold Extrusion:Cold extrusion ndi njira yomwe imachitikira kutentha kwa chipinda kapena kutentha pang'ono.Izi zitha kugwiritsidwa ntchito pazinthu zambiri - malinga ndi kupanga zida zolimba zokwanira zomwe zimatha kupirira zovuta zomwe zimapangidwa ndi extrusion.Zitsanzo za zitsulo zomwe zimatha kutulutsidwa ndi lead, malata, zitsulo zotayidwa, mkuwa, titaniyamu, molybdenum, vanadium, chitsulo.Zitsanzo za zigawo zomwe zimazizira kwambiri ndi machubu otha kugwa, zitini za aluminiyamu, masilindala, magiya opanda kanthu.Ubwino wa extrusion ozizira ndi:

• * Palibe oxidation yomwe imachitika
• *Good makina katundu chifukwa kuzizira kwambiri ntchito bola kutentha analengedwa ndi pansi re-crystallization kutentha
• *Kumaliza bwino pamwamba ndi kugwiritsa ntchito mafuta oyenera

Hot Extrusion:Hot extrusion imachitika pa kutentha kwambiri, pafupifupi 50 mpaka 75 % ya malo osungunuka achitsulo.Zopanikizika zimatha kuchokera ku 35-700 MPa (5076 - 101,525 psi).Chifukwa cha kutentha kwambiri ndi kupanikizika ndi zotsatira zake zowononga moyo wakufa komanso zigawo zina, mafuta abwino amafunikira.Mafuta ndi graphite amagwira ntchito pa kutentha kochepa, pamene kutentha kwakukulu kumagwiritsidwa ntchito ufa wagalasi.

Magawo omwe amapangidwa ndi ma extrusions ndi magawo ochepera omwe amagwiritsidwa ntchito pamagalimoto ndi zomangamanga, mamembala azithunzi zazenera, njanji, zida zama ndege.