DE1521387A1 - Method of flame spraying - Google Patents

Description

PATENT ADVOCATE '- "-" "- DR.-ING. BY KREISLER DR.-ING. SCHÖNWALD 1521387

DR.-ING. TH. MEYER DR. FUES 11XIBQt COLOGNE1, DEICHMANNH

KpIn, December 02.1966 Mr / Breu / Schw

Applicant:

Metco, Inc., 1101 Prospect Avenue West Bury, New York / USA

Method of flame spraying

(Addition to patent ... _β (patent application M 50 689 VIb / 48 b)

In the patent (patent application M 50 689 VIb / 48 b)

describes a process for flame spraying in which heat-meltable material is heated in a heating zone at least until it softens and, under the present conditions, is thrown out of the heating zone in finely divided form, the material being fed to the heating zone in the form of bodies which have at least two components which react exothermically with one another at the temperatures developed in the heating zone to form an intermetallic compound. The bodies supplied can be present in the form of individual coated powder particles, in which one component represents the core and at least one layer enveloping the core represents the other component. The core mass is preferably made of aluminum and the shell of nickel, advantageously 10 to 45 % aluminum, based on the total amount of nickel and aluminum.

According to one embodiment of this method, the heat fusible Material supplied in the form of wires or rods, Auoh in these cases the wire should be made of a core Have aluminum and a shell made of nickel.

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The flame spraying powder used in the process must consist of coated grains that are synergistic with one another having reactive components, one component being the core and a materially different component being the Shell forms which at the temperatures developed in the heating zone with the formation of an intermetallic Compound reacts exothermically with the core mass. Such flame spraying compositions can be mixed with other conventional Flame spraying compounds are used. When using k flame spray wires, the same requirements must be met be, so they must also consist of two materially different components that are capable of exothermic at the temperatures developed in the heating zone to react with one another to form an intermetallic compound. The components in Form of wire-building wire strands are present.

The described flame spraying process now delivers with a certain selection of the components in question particularly good results. It has been found that the method for flame spraying according to patent (patent application M 50 689 VIb / 48b) then results in excellent coatings in all cases if the constituents that react with one another Deliver at least 3,000 gram calories per gram atom, preferably at least 7,500 gram calories. The sprayed on Individual particles should consist primarily of the metal pairs listed below, their components meet this requirement and react exothermically with one another to form an intermetallic compound. '

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panel I

Ag Ce T B Hf Ce In Mg Sb . Ta Be Al As Approx B Nb Ce Mg Mg Sn V Be Al Au Cr B ffs Ce Pb * N / A Pb Ti Be Al B. B Th Ce Si N / A Sb Cr Si Al Ba B Ti Ce Sn N / A Se Cr Ti Al Approx B Y Ce Tl N / A Sn Cr Zr Al Ce B ¥ Ce Zn N / A Te Mg Te Al Co B Zr Ga Na N / A Tl Ni Te Al Cr Ba Bi Ga Pr Nb Si Si Th Al La Ba Pb Ga Sb Ni Th Si ¥ Al Li Ba Sb Ga Te Pb Pr Co Si Al Mon Be Co Ga U Pb Pooh Mon -Si Al Nb Be Cr Ge Mg Pb Se Ni Si Al Ni Be Ni Ge Nb Pb Tl Si Ta Al Pr Be Np Ge Zr Pd U Al Ti Be pu Li In Pr Sn Al Zr Be U In Te Pr Tl A3 Sb Be Zr In Ru Sb Zr Al Se Bi approx K Sb Se Sn Al Ta Bi Ce K Se Se Th Al Te - Bi K K Sn Se Tl Al π Bi Li K Tf Cu Te Al Y Bi Mg La Pb Si Ti Al ¥ - Bi Na La Sb Si Ü As CD Bi Se La Sn Si V As Ga Bi Te La Tf Si Zr As In Bi Th La Zn Sn Te As Mg Ca Pb Li Pb Sn U As Zs Ca Sn Li Sb Sn Zr B. Ca Tl Li Sn Te Zn B. Cd Li Li Tl Mon Be B. Cd Na Li Zn Nb Be

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The sprayed mass can additionally at least contain another flame spray material. According to one embodiment of the new flame spray process, the Individual particles in the form of powder grains, the core of which is one component and the shell of which is the other component contains, the shell of finely divided individual particles which is united with the core by a binding agent.

If the heat-fusible material is to be supplied in the form of wires or rods containing the components, So care must be taken that components are selected that do not have any cavities or cavities when melted together Forming bubbles · It has proven useful to use a wire whose sheath consists of one component, in particular made of aluminum, which is coated with a powder of at least one other component, in particular nickel, The sheath substance must melt lower than the powder substance. The wires can of course also consist of single strands consist of two different components.

Of great importance for the process of the invention are materials which additionally contain a metal hydride, But you can also spray materials, one of which is a metallic component at least partially in the form of his Metal hydride is present. According to a further embodiment, the metal to be sprayed on additionally contains boron and / or Silicon.

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Pig. 1 shows in cross section a single particle of the novel flame spray powder of the invention.

Pig. 2 gives a diagrammatic section of an embodiment of a new flame spray wire in accordance with the invention again.

Pig. j5 shows another embodiment of a new one Flame spray wire.

As far as bodies are mentioned below, these are structurally made up of one-piece units to understand, while pure mixtures of the components, physically without destruction of the particles' can be separated from each other, are not meant. Pur the case of the use of powders is with the dimensions or bodies according to the invention are not based on a simple mixture of individual grains of the various

e components, but it is imperative / prerequisite that each individual grain contains the various components that exothermically with the formation of intermetallic compounds react with each other. In the case of wires, the individual components must be united together in a single wire are present. In the bodies according to the invention, the components must therefore be in intimate contact with one another.

When spraying wires according to the invention, the body should be in the form of a wire, which is a sheath of the has one material and a soul of the other material. It can also be composed in different ways Sheaths of several components and a core made of a third material can be present, furthermore the wire can pass through Braiding or folding together different wire strands consisting of the individual components were created be; according to a further embodiment of the invention

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The wire can consist of a sheath of one component and a core, which the other component in powder or compact form. According to a further embodiment, the wire consists of a sheath of one component and a core which is a compact powder mixture of the same component and one or more other components contains. Finally, the wire can consist of a sheath made of a plastic mass and a core that comprises a compact powder mixture of the other component, etc. Those to be sprayed on with good results for the invention Wires must not show any cavities or bubbles at the tip when heated, they should be preferred. wisely be able to form a tapered or slightly beveled end when melted together and sprayed on. So do the wires have an outer layer or sheath made of one component and a core from the other component, the soul must not have a lower melting point than the outer shell, since it is in other case the soul first melts and at the Wire tip cavities and bubbles are formed. For example, if the wire is made of nickel and aluminum than Exothermically reacting constituents built up and represents a coated wire core, so the latter must be made of nickel and the casing is made of aluminum, otherwise the core will first melt out during the spraying process and causing blistering and voiding "which is inconsistent with a satisfactory injection molding process can bring. Below are those wires which> in terms of their characteristic melting points so are set to ensure melting at the tip without bubbling, as "non-bubbling Wires ".

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All metal pairs that could be melted with the formation of an intermetallic compound in the event of an exothermic reaction come into consideration as components. The components should release about 50,000 grams of calories per gram atom, preferably at least 7500 gram calories, with the formation of the intermetallic compound. The expression "gram calories per gram atom ¹¹ denotes the number of gram calories which the average atomic weight in grams of the formed intermetallic compound generates during formation. Although the components should preferably be present in the stoichiometric proportions required for the formation of the intermetallic compound, it is also possible to use an excess of one over the other, provided that the relative amounts are sufficient to generate the stated amounts of heat required to form the intermetallic compound Formation of an intermetallic compound can be melted together.All these components can be used for the invention, the only mandatory requirement is that they can be processed to the bodies suitable for spraying and that the resulting by spraying these bodies Existing intermetallic compounds set free the required amounts of heat during their formation. In addition, it is a prerequisite that the components themselves are suitable for sprayed-on coatings. As a general rule, components which form intermetallic compounds with a higher melting point develop enough heat to be usable according to the invention. Under certain circumstances, however, components that have intermetallic compounds with not so high melting points also generate sufficient heat in the exothermic reaction and are

accordingly applicable. Preferred components are 009834/0105

Aluminum with at least one of the metals «cobalt, chromium, Molybdenum, tungsten, tantalum, niobium, titanium, very particularly preferred Nickel ^ good results have also been obtained with silicon, with at least one of the metals titanium, niobium, Chromium, tungsten, cobalt, molybdenum, nickel or tantalum.

Although Elsen is not in itself a component that provides useful results, it can be used in addition to another component that provides satisfactory results in itself, for example in the form of an alloy with another compound. to form the intermetallic component with the third component, generating sufficient amounts of heat to support the spraying process. Accordingly, bisene, for example, which contains just enough alloyed nickel to become corrosion resistant, may not contain enough nickel to effectively exothermically react with aluminum. In general, a nickel / iron alloy suitable for this purpose must contain a minimum of 12% nickel. In the powder grain corresponding to Pig * I, the reference number 1 denotes nickel and 2 denotes aluminum. In Flg. 2 denotes 3 strands of nickel and 4 strands of alurainium which are combined to form a wire; here, for example, there are 18 strands of nickel with a diameter of 0.48 mm and 19 strands of aluminum with a diameter of 0.48 mm * Flg. j5 illustrates an aluminum shell 5 filled with IpBi nickel and aluminum grains. If one of the components is available as a metal hydride, it should be used in this form rather than as a metal as such. In the case of flame spraying, the hydrogen gas evolved from the hydride produces a reducing gas

00983A / 0105 originally inspected

Atmosphere, which in turn is the oxidation of the intermetallic Connections suppressed during and immediately after their formation. For example, instead of Titanium is better applied to titanium hydride as one of the components.

A metal hydride, such as titanium hydride, can also be mixed with the other components in small amounts in order to reduce oxidation. For example, 1 to 10 % and preferably 1 to 5%, based on the total mass, of hydride and the other components can be used.

The powder grains and the wire may additionally be others Contain the usual components used in the flame spraying process, but also only as a mixture or in combination be sprayed with these. Accordingly, for example, the coated powder can additionally have other shells of other flame spray components, but they can also have a core of another flame spray material with different shells containing the components that exothermically forming an intermetallic Connection respond. In the same way, the units or wires can be further flame spray components when using powders, these can additionally be mixed with any desirable ones other flame spray powders.

A preferred and very simple method of forming the coated powders of the invention is to use the to apply a component in the form of a coat of paint to the other component »for this purpose one of the components that will form the shell,

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in finely divided form in a binder or lacquer disperse ^ to form a real paint, in which this component corresponds to a pigment. This paint is then used to coat core particles of the other component, followed by the binder or the paint is allowed to solidify or dry. The binder preferably consists of. a resin that no evaporation of the solvent / to form a dried or solidified film, whereby the film becomes

"decomposes or collapses in the heat of the spray process. The binder can, for example, be a phenolic varnish or any other known or customary varnish. be, which preferably contains a resin as a paint solid. The first to be mixed with learning binders or varnish Component should preferably be as finely divided as possible The other, core-forming component should be in shape, for example in particle sizes of 44 microns approximately correspond to the particle size that is ultimately required for the wettable powder, or only slightly below of this size. The coating of the core component with the "paint" can be in a known or as desired, it is only necessary to mix the two materials together and the binder bring to dry or solidify, whereby an almost free-flowing powder is formed, which forms the core Component exists, enveloped with the other component, which is present distributed in the binder.

According to one embodiment of the invention, one of the components is made into a tube or a casing. and with a powder the other - component or sine Powder that is a mixture of the components or make up

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contains additional components, filled. The ends of the Röhrohens are then closed and the wire through Constricting, rolling or drawing brought to the desired cross-section. The powder is preferably used or the powder mixture is first pressed into cylindrical briquettes before it is placed in the casing or the powder mixture can, for example, by using a stopper, e.g. by welding, bending, choking, etc.

Although the powders are preferably used as such with a Pulve ^ r flame spray gun, it is too It is possible to combine them in the form of a wire or rod using a plastic or a similar binding agent, which is used in the heating zone of the Pistol decomposed. In certain cases, the powders can also be compacted and / or in the form of a rod or a Turned «back together. The wires must be the usual ones have specified dimensions and accuracy tolerances for flame fuel wires. Their dimensions, for example, between 6.4 mm and spray wire no. 20. vary, they are preferably at the following values:

4.8 mn «· 0.0013 • 0.06 *

3.2 mm + 0.013 mm - 0.064

and wire no. 15 + 0.025 mm.

The surface of the wires must be smooth and clean with no lines, spots or other defects. They are sprayed on in the usual way using wire flame spray guns.

009834/0105 bathroom original

example 1

An aluminum powder with a particle size between 44 and 105 microns was coated with cobalt in a known manner by reducing a solution containing ammoniacal cobalt and ammonium sulfate in the presence of anthraquinone as a catalyst with hydrogen. Was reduced at temperatures of 148-176 ⁰ · in a system operated under mechanical stirring autoclave. Solutions were used which contained 40 to 50 g cobalt, 10 to 400 g ammonium sulfate (NHh) ₂ SOn and 20 to 50 g NH per liter. 0.2 g / l of anthraquinone were added as a catalyst, and the autoclave was operated with a hydrogen pressure of about 21 kg / cm. After the cobalt solution was exhausted and the aluminum was coated with a first cobalt coating, the solution was removed from the autoclave and fresh solution was poured in, which, however, does not need to contain any further anthraquinone catalyst, since the cobalt coating formed at the beginning itself acts as a catalyst. The cycle was repeated continuously until a powder mixture had formed which contained about 16 to 18 % aluminum and 82 to 84% cobalt. Particle size: 55 to 149 microns.

The powder obtained in this way was applied to a surface by the flame spraying method Emery cloth sprayed on cleaned mild steel plate. That Spraying was carried out using a powder spray gun according to U.S. Patent 2,961,355 (Description of goods: Thermospray powder spray gun) under Keep a distance of 23 cm. 2.72 were injected up to 4.08 kg powder / hour using acetylene gas as fuel at a pressure of 0.7 kg / cm. Flow rate: 48l to 710 1 / h Oxygen was taking

a pressure of 0.84 kg / cm and a flow rate from 820 to 990 l / h used as an oxidizing gas.

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The cobalt shell and the aluminum core combined in the heat of the flame with strong heat emission and formation an intermetallic cobalt / aluminum compound, which is in the form of a dense, high-quality Coating deposited which had self-binding properties. In the manner described, a layer of 0.05 to 0.10 mm thick. The covering can be used as the basis for spraying on further layers of different Metals, etc., it is an excellent connecting intermediate layer.

The covering can also be built up into a thicker layer, for example a covering with a thickness of 0.25 to 0.5 mm, which can serve as a pad serving as an oxygen barrier. As described, you can even use layers Apply a thickness of 0.5 to 1.0 mm and more as wear-resistant and oxidation-resistant surfaces. thanks to Due to its self-binding properties, the sprayed-on coating adheres without the usual surface preparation or roughening on the pad. The covering allows for the natural properties of a sprayed mass the spraying of further flame spraying compounds with a good bond. Even at high temperatures and in oxidizing conditions In the surrounding area, the coating sprayed on with the help of the powder still has excellent resistance to oxidation, so that the base material such as molybdenum, etc., is prevented from being oxidized. The sprayed on Coatings can be used as linings for metal crucibles or devices for treating molten metal Metals serve, they are made by many molten metals, including self-fluxing alloys, not moistened or penetrated. The coatings formed also prove to be wear-resistant at high temperatures Topping *

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When repeating the operation of this example under Use of a molybdenum rod with a diameter of 4.8 mm, with a 0.25 to 0.30 mm thick coating being sprayed on, the coated rod can be repeatedly heated from the air to about 1100 ° using a welding torch, no oxidation being detectable after cooling to room temperature.

Similar results can also be obtained when the powder 10 -% aluminum and 55 to 90 wt .- # cobalt - 45 wt..

b) Procedure a) was repeated, except that titanium hydride (TiH ₂ ) powder was used instead of aluminum in amounts of 25 to 85% by weight, preferably in amounts of 60 to 85% by weight , based on the total mass. The coating formed during spraying is hard and dense; if it is applied to a smooth, pressed and sintered AlpO, substrate, an excellent bond is achieved. The spraying can be done with an oxygen-hydrogen or an oxygen-acetylene flame.

Example 2

A core made of silicon powder was coated with nickel to form a nickel-coated plasma spray powder. (Particle size of the powder: 44 to 150 microns; nickel content, based on the total amount of silicon and nickel: 75 to 85 %. ) Base sprayed on. During the spraying process, silicon and nickel combined with an exothermic reaction, which greatly improved the thermal efficiency of the spraying process and resulted in an excellent coating.

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Example ?

Titanium powder with a particle size range between 44 and 105 microns was coated with silicon in a known manner and a powder consisting of coated individual particles was formed which contained about 35 to 65 % titanium and 35 to 65 % silicon and had a particle size between 53 and 150 microns .

The powder thus produced was placed on a foundation prepared by light sandblasting flame sprayed. Spraying was done "12.7 cm from the plate using a powder plasma flame spray gun (Manufacturer: Metco Inc. of Westbury, Long Island, New York; trade name: Type 2 MB plasma flame spray gun). 2.72 to 4.08 kg of powder / hour were sprayed on. using argon as the plasma

magas with a pressure of 7jO kg / cm and a flow rate from 3IOO 1 / hour Argon was taking

a pressure of 7 kg / cm and a flow rate of 425 l / h. vei./end as powder carrier gas. A standard electrode and an argon nozzle type ^M D ^{M were used} . Arc currents of 400 to 500 amperes and 57 to 62 volts were used. The components of the powder, made up of titanium and silicon, combined in the heat of the flame to form an intermetallic titanium-silicon compound, which was deposited on the base in the form of a dense, high-quality coating. This covering showed excellent resistance to oxidation at high temperatures and protected the base against oxidation.

Example 4

Finely divided aluminum powder with a particle size of up to 44 microns was mixed with a phenolic varnish that was approximately 50 % solids. The mixing was carried out in such a way that a mixture with approximately the

Consistency of heavy syrup corresponding to consistency 009834/0105

BATH

containing 60 % metallic aluminum.

100 g of this mixture of paint and aluminum powder were added to 24-0 g of nickel powder, which was present with a particle size between 44 and 74 microns. The two substances were mixed vigorously and the mixing continued until the lacquer had dried up, leaving a halfway free-flowing powder in which all the nickel core particles were encased in a dry film. The film consisted of aluminum particles bonded to each other and to the core material by the phenolic binder. The powder was then heated to 120 ° to ensure complete drying. There were some agglomerates which were sieved out and then hand-milled to a particle size of 150 microns. The final powder consisted of about 15 % aluminum and 85 % nickel, due to the loss of some aluminum during the grinding. The powder was sprayed on as described in Example 1 and produced an identical coating, which, however, had more than twice the tensile strength than the coating produced according to Example 1.

Example g

a) A mixture of 6 # aluminum and 94% IJJ ekel powder were mixed vigorously and zyliirlr-i shear Brikettchen usanmongepreßt r.-in form, which is then in a AlurnJniuM · - tube of C 'j ^l 3 cm outer diameter cii ^ efül J t ", according to which the hom-ending KUkfj.'iebvroifit: vmr <i» ;: i. ίχν Di π · ο hm ^ .ν - r uurdf- üUl;? icii: -i cuf -, <- ... 3 <- * ΐπ cit ^ i-; ΔλΜ ■ '■ <;; · ever tried g to 0. ¹ J _(■ :::,

BATH

and finally brought to a final diameter of 0.52 cm, which corresponded to the finished wire. The wire has now been relaxed and rolled up. Then he became using the standard wire flame spray gun (Manufacturerϊ Metco Inc., sales name: Metco Type 4-E pistol) sprayed on. The spraying was carried out with

Turning acetylene at a pressure of about 1.05 kg / cm and a flow rate of 1.05 obm per hour. Oxygen was used as the oxidizing gas at a pressure of

2.67 kg / cm and a flow rate of 2.10 cbm / hour. fed. Air was blown as a gas under one Pressure of 3 * 87 kg / cm applied at a flow rate of 0.85 cbm / min. The wire was fed at a speed of 2.5 cm / sec. sprayed on. The material was applied to the surface of pre-ground and machine-re-ground, cold-rolled steel with a

Tensile strength of 270 kg / cm deposited. The sprayed-on coating is hard and tight. It is wear and oxidation resistant and can also serve as a base for spraying on other toppings.

b) The procedure a) was repeated, but instead of the nickel powder, chromium was used, in amounts from 24 to 95 $> * based on the total amount of aluminum and chromium. The spray application provided a high quality covering which had self-binding properties and was resistant to oxidation at high temperatures.

c) Procedure a) was repeated using columbium powder instead of nickel powder, specifically in amounts of 40 to 90, preferably 50 to 55 %, based on the total content of columbium and aluminum.

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The sprayed-on coating was a high-quality coating that was resistant to oxidation at high temperatures and can be used to protect bases made of tantalum and molybdenum against oxidation.

d) Procedure a) was repeated, using tantalum powder instead of nickel powder, in amounts of 4-0 to 90 %, preferably 65 to 75 % tantalum, based on the total amount of tantalum and aluminum. The result was a dense, highly qualified covering with self-binding properties, which was resistant to oxidation at high temperatures.

e) Procedure a) was repeated, but instead of the nickel powder, boron powder was used in amounts of 40 to 90 %, based on the total amount of boron and aluminum. The sprayed-on covering had self-binding properties and was resistant to oxidation at high temperatures.

f) Procedure c) was repeated, but a powder was sprayed on which additionally contained 0.5 to 5 % boron and / or 0.5 to 5 % silicon, based on the total amount of the components. The formed coating was similar to the coating according to c), except that when heated to high temperatures in air, a very thin, dense, firmly adhering protective oxide film was formed on the surface of the formed intermetallic compound. This is shatterproof due to the heat shock and appears to be of a self-balancing nature.

g) Procedure a) was repeated, but using tungsten carbide, which contained 12% binder and was present in a particle size below 105 microns, in amounts of 5 to 70 %, based on the total amount of the components tight,

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extremely hard-wearing and of a self-binding type The procedure can still be repeated, with crystalline instead of tungsten carbide of the type described Tungsten carbide, aluminum oxide, diamond or other wear-resistant substances can be used.

h) The procedure according to a) was repeated, 1 to 10 % and preferably 1 to 5%, based on the total amount of the components, titanium hydride having a particle size below 150 microns, preferably below 44 microns, added to the core material. The results corresponded to procedure a), with the exception that the coating formed has an improved physical strength and contains considerably fewer influences due to oxidation. Instead of the titanium hydride, other metal hydrides can be used.

i) The procedure a) was repeated, while Jedooh the Niokel powder was replaced by a Niokel-chromium powder, which consisted of a chromium alloy containing 80 % nickel and 20 % chromium. The welding wire provided a dense, self-binding coating that was extremely resistant to oxidation.

k) Procedure a) was repeated, but the nickel powder was replaced by a fuel mixture consisting of 80 % nickel and 20 % chromium. After spraying, a dense, self-binding coating with high resistance to oxidation was created.

Example 6

The "pairs of continents listed in Table 1 above can be used for the Irlindmig in the form of powders and / or wires or iJUii-.oj: i

9 β 3 4 / P · C !: _{BAD 0H1G1NAL}

Each of the listed component pairs reacts exothermically during flame spraying with the formation of an intermetallic compound and a very good coating * Die Pairs of components can be converted into coated powders according to Example 4 and sprayed on as described or processed into wire compositions according to Example 5 and sprayed on.

BAD OFiIGiNAL

Claims (10)

Patent claims 1.) Method for flame spraying, in which the material to be sprayed on is the hot zone in the form of such bodies is supplied, the at least two exothermic at the temperatures developed in the heating zone with formation an intermetallic compound have components that react with one another, according to patent (patent application M 50 689 VIb / 48 b), characterized in that the constituents which react with one another are at least Deliver 3000 gram calories per gram atom, preferably at least 7,500 gram calories 2.) The method according to claim 1, characterized in that the sprayed-on individual particles from the following listed metal pairs exist, their components with the formation of an intermetallic compound react exothermically with each other: Ag Oe Al Zr B Hf Be U Ce In In Te Al As As B B Nb Be Zr Ce Mg In Ru Al Au Al Se B Ts Bi Approx Ce Pb K Sb Al B. Al Ta B Th Bi Ce Ce Si K Se Al Ba Old B Ti Bi K Ce Sn K Sn Al Oa Al Ü B V Bi Li Ce Tl K Tf Al Oe Al V B V Bi Mg Ce Zn La Pb Al Oo Al W B Zr Bi N / A Ga N / A La Sb Al Or As Od Ba Bi Bi Se Ga Pr La Sn Al La As Ga Ba Pb Bi Te Ga Sb La Tf Al Li As In Ba Sb Bi Th Ga Te La Zn Al Mon From Mg Be Co Oa Pb Ga ti Li Pb Al Nb As Zn Be Cr Approx Sn Ge Mg Li Sb Al Ni * * B Y Be Nl Approx Tl Ge Nb Li Sn Al Pr B Approx Be Np CD Li Ge Zr Li Tl Al Ti B Or Be pu CD N / A Li In Li Zn 009834/0105 Sb Pb • Se Th Sn Zr 1521387 Mg ^ n Pb Pr Se Tl Te Zn Cr Zr Mg Pb Pb Pooh Cu Te Mo Be Mg Te N / A Sb Pb Se Si Ti Nb Be Ni Te N / A Se Pd Tl Si U Ta Be Si Th N / A Sn Pr U Si Y V Be Si W N / A Te Pr Sn Si Zr Ti Be Co Si N / A Tl Sb Tl Sn Te Cr Si Mo Si N / A Si Se Zr Sn U Cr Ti Ni Si Nb Th Sn Si Ta Ni 3.5 The method according to claim 1 and 2, characterized in that the sprayed-on mass additionally still contains at least one additional flame spray material 4.) The method according to claim 1 to 3, wherein the individual particles be sprayed on in the form of powder grains, the core of which is one component and the shell of the other Contains component, characterized in that the shell consists of finely divided individual particles by a Binders are united with the core, 5.) Method according to claim 1 to 3, characterized in that that the heat-fusible material is supplied in the form of wires or rods containing the components, which do not form cavities or bubbles when melting together » 6.) The method according to claim 1 to 3 and 5, characterized in that a wire is used, the shell of which consists of one component, in particular aluminum, which encases a powder of at least one other component, in particular nickel, the shell substance melts lower than the powder substance. 009834/0105 7.) Method according to claim 1 to 3 and 5, characterized in that the wires consist of individual strands of consist of two different components. 8.) Method according to claim 1 to 7, characterized in that that the heat-meltable material to be sprayed on additionally contains a metal hydride. 9.) Method according to claim 1 to 7, characterized in that one of the constituents is at least in part a metal hydride. 10.) The method according to claim 1 to 9, characterized in that the material to be sprayed on additionally boron and / or contains silicon » Blank page