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Complicated profile consisiting of metal profile coated with metal foil. RU patent 2439201. |
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FIELD: machine-building industry. SUBSTANCE: invention is referred to a complicated profile (1), consisting of a metal profile (2) coated with metal foil (3), and a method of coating application on production line by means of the metal foil (4). The method includes subsequent transportation of preliminary cut-out sections of shaped profiles (2) made from plastic or metal. The coating of each shaped profile (2) section with metal foil (3) is ensured to couple the said foil (3) with the said profile (2) in any point of surfaces of metal foil. This coating also ensures detection of the first, the lower by downstream, end (6) and/or the second, the upper by downstream, end (7) of each shaped profile (2) section and their cutting at the level of each end of each shaped profile section. The above metal foil (3) is selected so that its surface hardness could be higher than the hardness of the above shaped profile (2). EFFECT: shaped profile coated with metal foil and provided with excellent adhesion with foil. 21 cl, 2 dwg
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Method of surface treatment to protect it / 2439200 Substrate material is coated with a layer containing, at least, one metal for producing the applied layer on the substrate material. In order to produce metal protective layer, the applied layer is then treated thermally in recovering environment at pressure below atmospheric level. |
Composition of bath for chemical-thermal treatment of friction surfaces of steel items / 2436867 Composition of bath has following ratio of components, wt %: water 38.0-40.0, caustic soda 40.0-43.0, sulphide soda 1.5-2.5, hypo-sulphurous soda 2.0-3.0, sulphurous titanium 7.0-8.0, copper sulphide 2.5-3.5, potassium 3.0-4.0. |
Heat resistant component / 2436866 Heat resistant component contains main part of TiAl of inter-metallic compound having friction surface rubbing against another component and resistant to abrasion coating. Coating is applied on friction surface and is formed by sedimentation in discharge of material of a consumable electrode of metal resistant to abrasion. |
Procedure for production of built-up coating on blade body of turbo-machine / 2434973 Strips of alloyed metals are built-up in direction of lengthwise generatrix of blade body ensuring gaps between built-up strips at least on part of blade body and forming layer. As built-up metal there are used alloys on base of nickel with Co, Cr, Al, Mo, W, Ti, Y or their combination. Further, a blade body is mechanically processed ensuring its specified geometry. Successive thermal treatment corresponds to thermo-cycling. |
Method of applying cermet coat slurry on turbine stator inner surface / 2433208 Slurry is applied by pouring into stator inner cavity through inlet branch pipe in amount sufficient for complete immersion of guide naves in slurry. Inlet branch pipe is sealed to turn turbine stator about its axis through angle at which inlet branch pipe stays at its bottom position. Then, turbine stator is turned clockwise about axis perpendicular to its axis through angle of inclination to horizon at which slurry does not flows out of turbine stator with inlet branch pipe and guide vanes unsealed. Thereafter, turbine stator is turned about said axis counter clockwise to drain slurry. Now with slurry drained, turbine stator is rotated about its axis with turbine in horizontal position, unless slurry layer water glare disappears. |
Method to create surface using discharge / 2432419 Pulse discharge is created between an end surface of an electrode (37) and an end part of a metal plate (11), in order to cause the electrode (37) wear and form a groove (41) in its end surface, shape of which complies with the shape of the end part of the metal plate (11). The relative displacement of the electrode (37) is done in direction perpendicular to the side of the metal plate (11). A pulse discharge is created between the inner side surface of the groove (41) of the electrode (37) and the side surface (11b, 11c) of the end part of the metal plate (11), in order to create an auxiliary coating (43) or (45) at the side (11b, 11c) of the end part of the metal plate (11), and a pulse discharge is created between the lower surface of the groove (41) of the electrode (37) and the upper surface of the end part of the metal plate (11), in order to form a plating layer (47) on the end part of the metal plate (11). |
Method of functionalising titanium metal surfaces with titanium nanoparticles and product functionalised using said method / 2432182 Invention relates to treatment of the surface of a titanium article for orthodontic application, used in form of a prosthetic device or component thereof. The method involves immersing the article to be treated in a suspension containing titanium dioxide nanoparticles while ensuring complete wetting of the article, heating the article in order to remove the solvent and performing a thermal cycle in order to fix the nanoparticles on the treated surface of the article. |
Procedure for treatment of cutting tool in stationary combined discharge of low temperature plasma of low pressure / 2428521 Tool is positioned in chamber which is vacuumised and is supplied with process gas to working pressure (P). At this pressure there is possible gas break down at minimal strength of electro-magnetic field. Further, positive voltage of bias (U) is supplied on the tool forming electrostatic field around the tool sufficient for maintaining stable generation of plasma and there is generated micro-wave energy to a level of super-high frequency - SHF of power (W) 10-90 Wt. Cutting edges of the tool are subjected to plasma during 1.5-17 minutes (tpr), further, the tool is cooled. Also, during treatment process there is performed control over bias current (I) occurring in a measuring circuit at plasma generation chosen from the range 2÷17 mcA and final lag temperature (T) chosen from the range 10÷230°C. At deviation from the allowed value of bias current (I) the mode of treatment is normalised by changing anode current of a magnetron (Ian). At exceeding the allowed value of final lag temperature (T) treatment of the tool is terminated earlier. |
Procedure for production of surface nano composite layer on parts of metal or alloys / 2428520 Layer of nano composite structure containing silicon oxide dissolved in litol is applied on parts of metals or alloys. Further, the layer is radiated with electro-magnetic field of high frequency f=3÷5 MHz during specified interval of time t=5-15 seconds chosen depending on geometric dimension of parts. Owing "to skin-effect" the surface layer of treated part is heated to temperature within the range from 700° to 900°C. Dislocations of the surface layer are blocked with positive ions of heavy metals by the method of electro-mechanic implantation when direct electric current is transmitted through the contact a part-implanted strengthening metal. |
Method of combined machining of parts / 2423219 Invention relates to machine building, particularly, to physicochemical hardening of parts. First, part surface is conditioned by turning to remove 200 mcm of surface layer, not larger, to produce clean juvenile surface and reduce strain hardening of part surface. Second, simultaneously, part surface is hardened and plastic metal layer is applied thereon by deforming ball containing copper whereon working fluid is forced. Said working fluid contains chemical copper compounds to initiate selective transfer in contact between said deforming ball and parts surface via aforesaid surface layer. Turning element and deforming ball are located in tangential plane at distance that allows minimum interval of contact between juvenile surface and ambient medium before application of plastic metal layer. |
Method of fabricating integral disk provided with set of vanes / 2434728 Invention may be used in fabricating integral vaned disk for, for example, gas turbine rotor. Vanes 1 are arranged to make a rim in mould that features rotational symmetry. Disintegrating or decomposing material preheated to temperature exceeding its fusion temperature is poured on said rim. Moulded rim 10 is withdrawn from said mould after curing of said material. Friction welding is used to joint moulded rim 10 to disk 4 Disintegrating or decomposing material is removed. |
Method to join heat-resistant cobalt-based alloy and ceramics based on silicon nitride / 2433026 Invention relates to a technology for joining structural elements of products that operate under high thermomechanical loads. The method to join a heat-resistant cobalt-based alloy with ceramics based on silicon nitride includes diffuse welding at temperature of 900±10°C, pressure of 17±1 MPa for 1800±30 s. An intermediate material is previously applied onto welded surfaces. The intermediate material is a mechanical mixture with content of 0.1…0.3 wt % Cu, 0.1…0.3 wt % Co, the balance is Ni. The strength of the produced compound is σc=100±5 MPa. |
Method of tube shells plating by explosion welding / 2433025 Invention may be used for production of multilayer tube shells by explosion welding. The plated shell is installed in a massive matrix. Plastic material is installed between the external surface of the plated shell and the inner surface of the massive matrix. The plating shell is installed with a gap inside the plated shell, and an electric hydraulic generator is installed inside to develop impact waves. The generator comprises electrodes installed in a tight cylindrical body insulated along its inner surface and filled with fluid, in walls of which there are cumulative grooves with lining provided in them. Impact waves in the fluid are produced by development of a pulse high-voltage electric discharge between the electrodes. The plating and plated shells are exposed to cumulative jets formed by displacement of lining of cumulative grooves under action of impact waves. |
Structural element and method of its production / 2431554 Proposed structural element may be used in aircraft structure, as, for example, wing spar including web and one or several stringers adjoining said web. At least first and second metal blocks are used. Note here that ultimate strength in compression of first block exceeds that of second block. First metal block is machined to produce first solid part comprising first section of web and at least one element of stringer. Second metal block is moulded to produce second part that comprises second section of web. Produced parts are assembled by arranging web parts so that their faces fit over entire length and stringer part fits second section of web. Parts are welded, preferably jointed by friction welding with mixing. |
Friction tool with collar of adapted shape / 2429956 Friction tool (1) consists of rotating case (2). Collar (3) is located on its end directed from a drive. Rod like rotating lug (4) passes from collar (3) in the direction of the end of case (2) directed from the drive. Lug (4) has smaller diametre, than collar (3). Collar (3) has bearing case (6) open in the direction of lug (4) wherein there are arranged axially set off elements (7) or flexible side (8). Surface (5) of collar (3) is adapted by shape. |
Device and procedure for vibration welding / 2429955 Vibration welding is performed by means of multitude of mechanically untied vibration heads each connected to frequency converter. Frequency converters are jointed with electrical circuit so, that one of the frequency converters functions as a leading converter, while the rest frequency converters operate as subordinate ones. |
Method of producing multilayer metal sheets with sub micro- and nano-sized structure / 2428289 Invention may be used for producing multilayer metal sheets with sub micro- and nano-sized structure. Initial workpiece represent sheets from alloys based on one metal that feature different structure of crystal lattice at normal conditions. First of said alloys has stable crystal lattice in the entire range of temperatures at hot forming while second alloy undergoes amorphous conversion in hot forming range with formation of crystal lattice corresponding to that of first alloy. In assembly, sheets from first and second alloys are alternated in turns. Produced stack is subjected to evacuation and hot forming by heating and deforming over the height to produce multilayer sheet. Selection of alloy composition is subject to blocking of diffusion mobility of the most active alloying element. In compliance with another version, alloy that suffers polymorphous conversion is selected with due allowance for hardening phase presence with dissolution temperature exceeding that of its polymorphous conversion. |
Explosion welding procedure for production of items with internal cavities / 2425740 Central cavity forming element removed after explosion welding is made of brittle material crushed at explosion. Ratio of thickness of its wall to thickness of walls of cavity forming elements adjacent to it is (4-10):1. Explosion welding is performed at specified rate of detonation of explosive substance and rate of collision of a tubular casing with cavity forming elements. As brittle material there is used glass. As corrosion-resistant metal with low heat conductivity for fabrication of a tubular casing there is used austenite stainless steel. |
Explosion welding procedure for production of cylinder composite items with internal cavities / 2425739 Central cavity forming element removed after explosion welding is made of brittle material, particularly, glass, crushed at explosion. There is chosen ratio between thickness of its wall and thickness of walls adjacent to walls of cavity forming elements. A tubular casing is made of corrosion resistant-metal with reduced heat conductivity, for example, of titanium. A tubular intermediate layer of metal of reduced heat conductivity, for example austenite steel, is inserted between the tubular casing and a pipe bundle. Upon explosion welding between titanium and steel there is formed a heat protecting layer of reduced heat conductivity by thermal treatment. |
Rails pressure welding with heating / 2425738 Connected details of steel are assembled butt-to-butt and there is applied compression force. Butt is heated to temperature (Ac3+300)°C÷(Ac3+400)°C and conditioned at this temperature for austenisation of butt zone. Upon upset the butt is cooled with air-water mixture to temperature Mn°C÷(Mn+400)°C and is strengthened with shot. Further, the but is cooled to temperature of environment. As working substance at strengthening there are used steel balls of 0.6…0.8 diameter at air pressure 0.7…0.8 MPa. |
Complicated profile consisiting of metal profile coated with metal foil / 2439201 Invention is referred to a complicated profile (1), consisting of a metal profile (2) coated with metal foil (3), and a method of coating application on production line by means of the metal foil (4). The method includes subsequent transportation of preliminary cut-out sections of shaped profiles (2) made from plastic or metal. The coating of each shaped profile (2) section with metal foil (3) is ensured to couple the said foil (3) with the said profile (2) in any point of surfaces of metal foil. This coating also ensures detection of the first, the lower by downstream, end (6) and/or the second, the upper by downstream, end (7) of each shaped profile (2) section and their cutting at the level of each end of each shaped profile section. The above metal foil (3) is selected so that its surface hardness could be higher than the hardness of the above shaped profile (2). |
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