DE1814605U - SUBSEQUENT DELIVERY ROD FOR EVAPORATION OF ALUMINUM IN HIGH VACUUM. - Google Patents

Description

Ρ.Α.255694 * 23Λ

W, C * Iö3? A © us GmbH, Hanau {Jfeijs} ■

* 22 * April 1960

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Keue Verchreifo3ftfi _{i r} g ^

for ftrdampfung from AIuMM-um im

In the metallization of Exuaststoffoliea, paper or it is known about these substances la Vakusm wrap * to degas it and to evaporate eventually accordance with hinreiclieM siedri ~ Print metals and the vapor through Koadensati ^ a miederzuschlageii. There are no prints required. Xm general * meiseo under 10 * ^ 3? Orr * Me Yerdaarpfmag «ritelgfc from fiegela suitable form and similar with a tracking of the aluminum through the

von laehfuhrajagsstlben · With metals., which adtt the Ib-Si egel & ateri alien Wolfram «Molyhdäö and tantalum alloys And then ^ i can guide you through the mirror

Torteil Fiegel from Sraphit and amorphei "carbon ^ Ta mitsi $ werdea" the great temperature Wechs ^ lbeständiglceit "possess. The Warmeftbergajig in the geschaolzene Alustiniuat is very good" because the coal generally by LIQUID Alumiaiua © rfc "bmmtzfc" Irae "This" Beöbaehtungen are in the Segeasat "au dem -tegafee" oda # s "your goal stroke", which wants to reduce the surface tension of the liquid aluminum and promote the wetting, that from time to time high melting "metals, vX & tungsten" tantalum "molybdenum and the like" in the form are added by StQek $ a * There are also no difficulties «» te # stgliea der AusM14toos von Oxyäliäaten on metals »since the coal has a reducing effect ·

lim Saehtieil such? e «daspf« r feestehti um ? In the itfi & fcio "of the liquid aluminum" it the carbon at temperatures above 1000 ° O, which leads to the formation of the iClumijdip "arljid !. Baämreh ¹ UaJd flow of the metal in the seal obstructed. And also & «r electrical changes si & a uaglelchjaüig over the« I «i» ge de »T« rda »pfers Is form» CarMdea & fefunge »as St« llt & b # voraugt; «3? leaktion »the -Uamers get bigger j the seal warms up! look more and more unevenly - and finally leaves the desired even steaming

flour to. That is particularly annoying the lukewarm Bedaapfujag "wide" r bands ♦

fcei longer ».

E »has already been proposed, the iJofcls Ä & t» Sofcic & t «» by

to over "i $ km * from fcsi certain metal *, aie" atamr are to be evaporated from "" in "besgexs Bemötfatsag am eräiölas." Bs bat proved _t that such OarMdschiclatöB auok göeignöti siad to delay dl © Ileaktion zwiachen Solile and liquid Altuainima "the formation of Al ^ miniimcarbid fülxri ;,. Pn maa but this © SctLutaschichtiöG not arbitrarily thee rnaaüea kau », and if it» also contains lines and errors, the protective effect is only guaranteed for a relatively short period of operation.

Is therefore a search for a form of delivery material; who it m ^ 'glfoh eats _f the Eeaictioa awl see the daapfer and the liquid «» Äluminimia wS & maä de * entire duration «which can be up to a few hours, to prevent« To achieve the <m »one must ensure that the carbide protection layer between the aluminum and eng. Coal is constantly being replenished or renewed, which is achieved by supplying suitable substances in evenly and precisely dosed quantities

Ss has proven to be a surprisingly simple and reliable method result »which consists * that for the constant renewal of the protective layer refractory compounds from groups $ 9X> Boride, Garbida * Silicide and Hitride το »% @ rgasgsM & Xea« Kfe «tt Te $ w # md« "& become, which in pulvorförzaigeia state in the evaporation source «usaiamen so that the aluminum is continuously approached! werdta »being this because of their high heat of vaporization do not eat them themselves » but permanently ixt aluminum be solved. 4m of limit liquid They form a new protective layer of aluminum over and over again.

The management itself takes place in such a way that aluminum works larger Suaföhmasee * »is used, whereby the Ριιΐνβΐ 'im a hole or in a lateral hole * which faces outwards

is covered * in the geaata doelerter Meng * «atergöbraciit is *

ils Siibstaiiseii »<Ü9 sie. Melier have particularly proven to come Ia question ZirfconbGrid, faataloarbid *

Pie invention itself we & dnrea awei Figure * »Fig.» 1 shows the cross-section of a rod which is provided with a ¹ filling and Ab "b. 2 a Terdaapfer" to which the evaporating metal is fed by cutting off a G6-filled rod.

Ia Al> b * 1 there is a # cate frozen in stick 1 which si «& over the entire length. It is filled in on the one hand by the Material 3 and by a wedge-shaped 3 piece 2, the cross section of the delivery staff vdeder supplemented.

Fig. 2 shows such a rod 4 "which contains the filling 3 and from which a metal trumpet 5 is cut off at the front right now," the Terdai ^ pfeirseihiffeiiea J & aunterfäilt · Meaer fs? Opi! "" 5 also contains a certain small amount 6 &"AZttsat" materials. Bea? fyopfe »^ falls1» in the Sehiffehe »9 hot U3 ^. -rexasieislitr siah with the liquid metal to be evaporated 7 "The material 6, which gets into the melt 7 with the drop 5, forms a layer on the level between the boat and the molten metal" which enables the formation of altuainite carbide veriaimdert on Terdaapferboden *

It has shown * that with the help of such delivery sticks, you can achieve "the mbe *?" very long direct deliver a consistent quality. Inabesoadere, such rods are suitable for the continuous tapping of very long tapes, it is precisely here that it is important to ensure a uniform quality over large lengths of the ear.

Claims (1)

ffeue Bchutga3iai> r% cne aar SteftrauchsmagteranaeläuBg η 23 $ gt / 48 b 1. Subsequent delivery rate for ongoing evaporation of in the Hockvalcuuffi by means of © ines Kohlesdaiffohonst that with a Protective layer to prevent Seakti © »» wiscken dem Aluminum and the carbon of the boat is provided, characterized in that protective layer-forming substances in the follow-up rods or wires (1) use aluminum as the wick (5) completed; siad. In addition, with a wick according to claim 1, characterized in that SiIiasides, Borides, Carbides or nitrides of metals of the 4 to 6 groups of the periodic table are filled either alone or in a mixture as the wick material. J. Naehlifcferungsatab with a wick according to claim 2 _t characterized by the fact that the wick material is llolybdenum silicide, zirconium boride, fantalearMdf iitancartid or titanium nitride, either alone or in a mixture. it. , · _& ■■■> _j > .- <- hf ^t; buP: it. ·! SohUftoiKpr.} Is »d: 8 zu'elzt a <3ü ^ .- [ite; they ^ ο ^, ^ ν «,. ta <V> - _M , ative at * n wafer prices