METHOD FOR CATHODE-RAY SURFACING

摘要

1. A method for cathode-ray surfacing, the method comprising forming a surfacing zone with the aid of the linear scanned cathode-ray in the form of several parallel lines, introducing a fused metal in the surfacing zone and moving the article, characterized in that prior to fusing the surface is cleaned by a cathode-ray fusing without introducing the fused metal, the linear scanning of the electron ray is embodied athwart the traveling direction of the article, the cleaning and fusing are carried out consecutively and composite powders or a mixture of thermo-reactive powders are used as a fused material, at least one of components is selected from the group of non-metal carbides or non-stoichiometric carbides or nitrides of transition metals of IV-V group of the periodic system, comprising none-metals therein (0.35-0.75) mol or ferroalloys or carbides of transition metals of IV-VI group of the periodic system, or a composite disperse strengthened material based on mixed refractory compound, interstitial alloy type of introducing transition metals of IV-VI group of the periodic system with 30-60 wt % of a metallic bonding, at least one of which is selected from steel or cast iron or metals I, VI, VIII groups of the periodic system. 2. The method of claim 1, wherein a mixture of thermo-reactive powders of the following composition is used surfacing titanium alloy items, wt %: iron boride 10-70, titanium boride 10-70, titanium remaining. 3. The method of claim 1, wherein a mixture of thermo-reactive powders of the following composition is used surfacing steel or cast iron items, wt %: iron boride or nickel boride, carbide boride or iron-chromium boron alloy (FeCrB) 10-90 ferrotitanium or titanium nikeline or titanium (FeTi or NiTi or Ti) remaining 4. The method of claim 1, wherein a mixture of thermo-reactive powders of the following composition is used surfacing steel or cast iron items, wt %: non-stoichiometric titanium nitride 0.1-43, cast iron 0.1-94, manganese, chromium, molybdenum, nickel, vanadium, tungsten, silicon, nitrated ferrochromium, nitrated ferrovanadium remaining. 5. The method of claim 1, wherein a mixture of thermo-reactive powders of the following composition is used, wt %: nickel 10-90, aluminum 5-85, the periodic system IV-VI group transition metals carbide remaining. 6. The method of claim 1, wherein a powder of a composite disperse strengthened material of the following composition is used surfacing steel or cast iron items, wt %: the periodic system IV-VI group transition metals carbide 10-90, steel or cast iron remaining. 7. The method of claim 1, wherein a powder of a composite disperse strengthened material of the following composition is used surfacing steel items, wt %: titanium carbonitride 40-60, high-speed steel remaining.