DE1458296A1 - Method and device for manufacturing a jacketed core - Google Patents

Description

HÖGER - EUG. MAIER - LEGAL LAW

A 33 501 h PATENTANWÄLTE, N STUTTGART h - 96

April 7, 1964

Dr. Expl.

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IHOORPOBAm {USA )

Procedure and establishment shim Herding a twnaateltoii Ke

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Manufacture of a UBma _a t _e it _en grain.

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BATH ORIGINAL

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and then underneath the cladding material together with the core corresponding reduction ho is compressed so that the cladding material is not only connected to the core material, but at the same time it is also condensed and solidified.

Bas coating a core material with powder has opposite wrapping with a strip in some cases has several advantages. Many powders are cheaper than the same Material in strip form in the required size to achieve the same diamond thickness. Wires with one Cladding material that is harder than the core can often be clad with powder more easily than with strip material. There is less waste with powder than with strip material. Furthermore, no extrusions need to be removed in the case of powder. Smaller reductions are usually required, to bond powder to solid, forged metals, as if solid, forged metals were bonded together will.

In the drawing, a device for carrying out the method according to the invention is shown in section.

In the embodiment shown in the drawing shown how the coating of a core material by a powder material and, if necessary, can be carried out with differential heating on the same side. The core material 135 can

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be in the form of a rod or a tube. It is moving through a bed 137 hinduoh, in which a chemically inert there is a dreary, reducing atmosphere. The core wire 135 is powered by a transformer 139 through a circuit 141 fed with electric current, the current still over • flows into a consumer 143. The circuit is made via the Orphan 135 closed. The core 135 is between the catfish

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131,153 ge through a guide ring 145 in FUhrungsblock 146 = (resulting finely divided material, for example, pulper 147 'is via the TorratsgefäSe 149 and 151 through openings 143 in the block' -. "45 a Auslaßstüek 155" out that at a distance the! Thus, the powder comes into contact with the core at the openings 143 when the core emerges from the guide 145. The powder 147 is moved partly by the force of gravity, partly by the moving core 155 and flows downwards along the core through the Outlet piece 155 and a widened nozzle part 157 of the guide block 146. The powder 147 is measured through the outlet piece 155 and the widening 157 in such a way that an even distribution around the core is ensured .

The powder »das deia aic / Λ moves from the nozzle 157

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U58296

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after wading the moving core 135 surrounds, with this core up to the pressure point 153 between the rollers 131 and 133. The pressure point is in the vicinity of the outlet of the extension 157 ,? The thickness of the sheath can be changed by changing the proportions, for example the core cross section and the roller width. The powder size _s the shape, the density of the orphan diameter, the whale surface quality, the roller speed and the material temperature. doors beef fa & gates, which are also the. To «influence coating thickness. The temperatures of the core 135 are controlled via a & n structure 141. The temperature öes powder 147 k: \ n with the aid of heating elements 159 1 l ^ · be controlled, which are to jrtcht ä @ m VorratsgefäBen and 151 according ANGC /.

Into the E®torte 137 is introduced through opening 163 © in © r aierend © or efeemiseSi inert Atiso-iphar ©, which can then come back through the opening 164. Also in the storage vessels 149 wnd 151 practicing. * Is an opening 165 _t reducing introduced with the openings 148 koauaunisiert ^ @! Ae © or inert atmosphere. The volumetric vessels 151 and 151 are covered by lids 167 and 169, respectively, and are filled with powder via control slides 175 and 177 outside the vessels 171 and 173. The powder present in front of the vessels serves as a seal,

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• To prevent leakage or contamination of the atmosphere in the storage vessels "When the storage vessels 149" 151 are introduced, the reducing atmosphere flows out through the pipes 179 and 181,

The powder now flows from the storage vessels 17I ₉ 172 so quickly that the supply is refilled. A large part of the air contained in the loose powder mixes with the inert or reducing atmosphere in the storage vessels and flows out of the water. Torrat vessels through the outlet pipes 179 »181 auu. When the powder then settles in the storage vessels, most of the gases which were trapped there are replaced by the inert or reducing atmosphere upon entry. The heating of the powder with the aid of heating elements 1591 161 serves to facilitate the removal of air or water vapor from the powder entering. The water vapor then flows together with the more distant one. Air from the tubes 179 »181 from» 12) The use of Witer stand heating in the core 135 and the powder heating of the heating elements 159 and 161 make up the controlled rential heating.

Bas powder can, for example, made of copper, nickel. Wolfrau etc. or of non-metallic material such as carbon »§as _B silicon» carbide etc. consist. Ss should be noted »

9098 09/0178 bad original

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that in this Pall the hot circuit 141 for the core 135 is completed by members 146 and 145,

both of which are conductors. The core can consist of a solid or hollow cylinder made of copper, nickel, tungsten, etc., or of non-metal such as, for example, carbon, SIaS ₀ silicon carbide, etc. If a non-conductor, for example glass, is used for the ceramic material, direct resistance heating according to the drawing is hardly used caused by an external heating.

The rollers 131 and 133 compress the powder around the core 135 and at the same time connect the powdery shell to the core material. The cladding material is heated to a temperature in which a sintering between its parts and, when pressed together by rollers 131 and 133, a pressure bond between these parts and the core 135 is achieved. The core reduction, as it is achieved by the roller pressure when the powder material is pressed on, can only amount to 156-1056 of the core diameter. In all embodiments of the invention, the bond barrier material is removed from the metal surfaces by means of ironing . It is assumed that gross contamination of the materials has been removed prior to heating.

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Claims (1)

A 33 501 h -7- ⁷ · ♦ · ^{1964 l} Dr. Expl PATEHSDAH SPRAY 1. A method of a sum o ttEsmantelten Keane _s as characterized by, SAB to a voraugßweise! Clay material is applied a Uizaaantelungsmterial ale powder in finely divided state and then since "Unmantelungsmaterial sit together with the core in accordance with the reduction is compressed so sat Unman * »Telung & naterial not only connected with the Ksramatorial» but at the same time also condensed and solidified. 2. The method according to claim 1 »characterized in that the powder and the Kemieaterial on different Temperatures are brought. 3 · The method of claim 2, äaitirch gekennseichmiet ,, u pressing together is carried out before the materials are substantially cooled. Characterized in 4 · A method according to claim _e, that the powder is heated before the applicator, and preferably by a swar elesktrlt resistance heating. . Method according to one of the preceding claims, by means of gelrennzeichiaGt _f that you © Heretollnsag unierßchiedli «h ©: T © ip.peraturen _f insbeGOftier © from Ervärs-ss _r iii eiaer cder reättsisrenden Afecsphäi. *« 'Sr, _ »q oB 909809/0178 A 33 501 h -8- h - 96 April 7, 1964 6. The method according to any one of claims 2-5 »characterized in that that warming by the Hindu shi ^ kem an electric current through certain areas of the Components are made as long as they are electrically conductive 7. Method according to Ansjrueh 6, characterized in that the electrical Eiwärmung in the area Tom entering üie SEKW-tsgasakmoepMre rock tsnm erf o'igt ". 8, method make claim 6 or 7 _S thereby the KeirsaijAterial elektrisek conducting and the Uauaan *, e are not electrically conductive. 9 «Ei, iirielitwJ.j» to carry out the procedure n & ou of the previous claims c- thereby gekenns & ichn ίί; _e that the supply and storage of this powder is a tri «5M <,;: ·. · like / storage vessel to which the Ρ ^ Ιι ??? ^{4 from} above ^T i © r ülier Suflußleitung is arranged, w & ü äiB em SViclittsrausg & fig Binackwalsen sum addifaenprcsuen van ttir and Kersüsmaterial siaö, 10. Fiiirichtusjg according to claim 9 _t dadiareh äas Vorratsgel'Sß a Öittleren Stirchgang for ttes E \ - ■ · .- * - eaterial has « 909809/0178 BAD ORfGlNAt. A 33 501 h -S- April 7, 1964 11 · Device according to claim 9 or 30, characterized in that the end of the richteramsgang is opposite is. . Installation according to claims 9-11, characterized in that an electrical solution is arranged on the outer surface of the storage vessel. 909809/0178 BADORLGiNAL