Procedure for application of hard anti-friction coating |
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IPC classes for russian patent Procedure for application of hard anti-friction coating (RU 2402599):
Anti-friction composition for plunger pairs of fuel pumps of high pressure / 2400533
Invention refers to protective polymer composition for production of anti-friction coating on contact surfaces of plunge pairs of fuel pumps of high pressure (HPFP) and can be used in diesel engines of motor car and agricultural engineering. Composition contains wt %: amides of per-fluoride-poly-ether-acids with molecular weight 1200-1400 - 1-9, disperser - product of interaction of boric acid, di-ethanol-amine and fat acids of vegetable oils of C6-C20 fractions at their mole ratio 1:3:0.5 correspondingly - 2-10, diesel fuel - the rest.
 Process lubricant for metal cold die forging / 2400532
Lubricant contains wt %: sulphidised α-olefine of C16-C18 fraction 5-15, colza oil 10-30, mixture of 2-phenyl-3, 4-fulleren[60]tetra-hydro-thiophene of formula (1)
Inhibited composition for corrosion protection of bottom of autoclaves for production of foamed concrete and other silicate articles / 2400507
Inhibited composition for corrosion protection of the bottom of autoclaves for producing foamed concrete and other silicate articles contains sodium grease as a base, grade B still bottoms of free fatty acids, Asmol, inert aggregates - talc and titanium dioxide, hardener - magnesium oxide, organic inhibitor IKB-4V, IKB-4TM or TAL-11M, inorganic inhibiting additives - zinc oxide, mixture of sodium molybdate and potassium dichromate in ratio of 1:0.7, diluent - rubber solvent petrol, polymeric petroleum drying oil, monoethanolamine, diethanolamine and triethanolamine.
 Rapeseed oil based hydraulic fluid for agricultural equipment / 2396308
Invention can be used in hydraulic systems of machines and mechanisms used in cultivation, sowing, harvesting and processing crops under field conditions, as well as in the processing and food industry. The rapeseed oil based fluid contains 0.5-1% multifunctional Valena additives.
Persistent grease for bearings operated in extreme conditions and method of its production / 2396307
Preset amount of the mix of lubricants is loaded into apparatus furnished with mixer, said mix consisting of KC-19 oil and spindle oil and making 2/3 of total volume, heated to 80°C. Then dioctyl sebacate, 12-hydroxy-stearic acid, solution of lithium hydroxide (15%-solution in water) are added into said mix for it to be heated to 90-95°C. Dewatering of lubrication base is performed by heating to 200-210°C at continuous mixing for 40 minutes, apparatus charge is cooled by cold oil - 1/3 of oil mix, to 130°C. Then the following admixtures are added into apparatus: thio-diphenylamine, naphtam-2, molybdenum disulphide, fluoroplastic, benzotriazol, and mixed and cooled to 90°C, additive crimson-100 is added and obtained mix is cooled down after reaching homogeneity.
Grease lubricant / 2391386
Invention relates to grease lubricant composition meant for main sliding friction units of motorcars. The composition contains the following in wt %: 12-hydroxystearic acid 14-20; acetic acid 4-5.8; synthetic fatty acids of the C5-C6 fraction or hexanoic acid 1.5-2.5; barium hydroxide octahydrate up to complete saponification; N-(diethylaminomethyl)benzotriazole 0.01-0.3; synthetic polyalphaolefin oil with viscosity of 5-12 cS at 100°C - up to 100.
 Lubricating rod / 2388635
Invention refers to lubricating materials and can be used for lubricating heavy duty friction units of various mechanisms. The lubricating rod consists a casing filled with lubricating material. The casing is made out of laminar material, for example wood plastic or graphite, or paper, or cloth impregnated with liquid glass, or polyethylene subject to artificial destruction. Lubricating material consisting of a lubricating composition additionally contains glass foam at the following ratio of components, wt %: bitumen 5 - 80, graphite 5 - 80, polyethylene 5- 10, molybdenum disulphide 5 -10, glass foam 5 - 10.
 Method of making solid lubricants for wheel flange-rail friction couple / 2383585
In the method, liquid epoxy diane resin (A) is mixed with aromatic polyisocyanate (B) at 80-120°C for 15-55 minutes in ratio A:B ranging from 80:20 to 96:4 and subsequently held for a day for conversion to solid fusible epoxy urethane which contains free epoxy groups. The obtained epoxy urethane is mixed on rollers at temperature 30-70°C for 10-30 minutes with antifriction powder, propylene glycol, latent hardener for epoxy urethane and propylene glycol - 4,4'diphenylmethane diisocyanate blocked by dimethylamine, chopped fibres, after which it is cut into a sheet, rolled into a rod and kept for 3 days in storage conditions.
Transformer oil / 2373265
Invention relates to oil refining. The transformer oil contains, wt %: antioxidant additive - up to 0.5 and a basic support - up to 100. The basic support contains, wt %: 30 to 70 support 1 and 30 to 70 support 2. Support 1 is mineral oil obtained from a narrow 250 to 340°C fraction of diesel oil through hydrorefining, hydrodewaxing, hydrogenation with subsequent fractionation. Support 2 is a 280°C to 360°C fraction of isoparaffin oil, obtained from oil paraffin (300°C-K.K fraction) through hydrorefining, hydrodewaxing, hydrogenation of paraffins with subsequent fractionation.
 Grease / 2373264
Grease can be used in machine components and mechanisms, which work in conditions of aggressive media at temperature ranging from minus 30 to plus 250°C. The grease contains, wt %: lithium soap of 12-hydroxy-stearic acid 10 to 18, polytetrafluoroethylene 3 to 5, liquid polysiloxane 18 to 25, diphenylamine 0.1 to 0.5, copper stearate and acetate suspension in castor oil in ratio of 1:1:3-1:2:4 0.2 to 3.1, transformer oil from 30 to 50, industrial oil - the rest.
Protective coating composition / 2402585
Composition contains: epoxy-diane resin, polyamide hardener, filler - finely dispersed quasicrystalline filler of the Al-Cu-Fe system with particle size less than 10 mcm, ultra-fine fluoroplastic powder and organic solvent.
 Enamel for depositing anticorrosion fireproof bioresistant coating / 2401854
Invention relates to coating materials and can be used in anticorrosion fireproof bioresistant coating of different materials. The enamel is a set including the following (wt %): a semi-finished enamel product from brominated epoxy resin in an organic solvent in which filler materials are dispersed 8.52-13.5, pigments 18.27-25.29 and a rheological agent 1.7-2.7, as well as an amine type hardener. The resin base is synthesised from epoxy resin and tetrabromodiane in molar ratio of 3:1 and temperature 130-150°C in the presence of a catalyst - an oligomer of aromatically conjugated hydroxyphenylene in amount of 0.65-0.75 moles, which does not contain amines and is obtained via oxidative condensation of alkyl resorcin at 250°C.
Enamel for depositing anticorrosion fireproof bioresistant coating / 2401854
Invention relates to coating materials and can be used in anticorrosion fireproof bioresistant coating of different materials. The enamel is a set including the following (wt %): a semi-finished enamel product from brominated epoxy resin in an organic solvent in which filler materials are dispersed 8.52-13.5, pigments 18.27-25.29 and a rheological agent 1.7-2.7, as well as an amine type hardener. The resin base is synthesised from epoxy resin and tetrabromodiane in molar ratio of 3:1 and temperature 130-150°C in the presence of a catalyst - an oligomer of aromatically conjugated hydroxyphenylene in amount of 0.65-0.75 moles, which does not contain amines and is obtained via oxidative condensation of alkyl resorcin at 250°C.
Composition for making electroconductive protective-decorative coating of dielectric material / 2398808
Composition contains a mixture of epoxy resins type E-40 and E-05 in weight ratio (90-86):(10-14) or Epikot 223 and Epikot 401 in weight ratio (87-83):(13-17), a mixture of organic solvents, mainly in form of a mixture of toluene, butanol and butylacetate or xylene, isopropyl alcohol and ethylacetate mainly in weight ratio 22:40-38, a hardener of mainly polyamide type, and fine metal powder, mainly aluminium, in the following ratio in pts. wt: mixture of high-molecular epoxy resins 100-120, mixture of organic solvents 64-78, hardener 21-26 and fine metal powder 28-37.
 Functional fluorine-containing silanes and synthesis method thereof / 2398775
Invention discloses functional fluorine-containing silanes of general formula AC(O)-NR'(CH2)3Si(OR")3, where A is a normal or branched completely or partially fluorinated Alk C2-C12; R' - H or Alk C1-C4; R" - Alk C1-C4. The invention also discloses a method for synthesis of the said compounds which involves amidation of aminopropyl-triethoxysilane AC(O)-OR", where A and R" are as described above, with a compound of formula NHR'(CH2)3Si(OR")3, where R' and R" are as described above.
Protective coating composition / 2394861
Invention relates to preparation of epoxy resin based protective polymer coatings which are meant for protecting components of structures made from aluminium alloys and steel from abrasive wear during operation. The protective coating composition contains the following (pts. wt): epoxy diane resin - 100.0, amine type hardener 10.0-50.0, modifier - low-molecular epoxyurethane, polysulphide or butadiene-acrylonitrile rubber in amount of 5.0-40.0 pts. wt, filler - fine-grained quasicrystalline metal filler of the Al-Cu-Fe system, micro-reinforcing filler in fibre or plastic form, selected from a group comprising natural or synthetic magnesium, aluminium or calcium silicates, quartz dust or their mixture in amount of 20.0-100.0 and an organic solvent 200.0-420.0. The amine type hardener is a polyamide resin or an organosilicon amine or their mixture. The composition can also contain flattening agents in amount of 15.0-35.0 pts. wt and pigments in amount of 5.0-40.0 pts. wt.
Polymer composition for protective barrier-type anticorrosion coating / 2394058
Disclosed polymer composition relates to two-pack compositions. The composition contains of a component A, which contains epoxy diane resin, epoxy aliphatic resin and 1-2 mcm thick basalt flakes with particle size of 0.001-0.2 mm, and a component B which contains a hardener mixture - aromatic oligoamide and basalt flakes.
 Polymer composition for anticorrosion protection / 2394056
Invention describes a dry mixture of a polymer composite containing the following (pts. wt): powdered industrial wastes or recycled epoxy resin 50-75, filler - product of mechanical treatment of an abrasive instrument 30-50, modifier - phenolformaldehyde resin 20-30, urotropin hardener 1.6-3.6 and colouring pigment 10-15. A liquid ingredient - ketone group solvent is added immediately before application.
 Fracture-resistant epoxide composition / 2387682
Composition contains a cross-linked epoxide resin in amount ranging from approximately 20% to approximately 80% of the mass of the composition; a tri-block copolymer of polystyrene-polybutadiene-polymethylmethacrylate in amount ranging from approximately 1% to approximately 20% of the mass of the composition, with concentration ratio ranging from approximately 1:1:1 to approximately 1:1:1,5; filler material in amount ranging from approximately 0.001% to approximately 65% of the mass of the composition; and a hardener in amount ranging from approximately 0.69% to approximately 15% of the mass of the composition. The invention also relates to an article and a method of protecting the article.
 Method of producing molecular imprinted polymer / 2385889
According to the invention, the molecular imprinted polymer (MIP) is produced as follows. A reaction mixture containing a solvent, nylon 6 and a blowing agent is prepared. A template molecule is then added. The mixture is added to distilled water to obtain a separate molecular imprinted polymer. To obtain a polymer attached to the surface of a carrier, the mixture is distributed into a continuous thin layer or in form of spots. The obtained MIP is dried in air at room temperature. A template from the MIP composition is removed by successively washing with water and ethanol. The solvent used is a mono-alcohol. The blowing agent used is polyethyleneglycol, bovine serum albumin, polyvinyl pyrrolidone, polyvinyl pyrrolidone. Solvents whose rate of evaporation differs from the rate of evaporation of the mono-alcohol can also be used as the blowing agent. The solvents are selected from water, butanol, pyridine, dimethylsulfoxide, glycerin and dimethylformamide. The template used is mainly nucleotides and proteins.
Antifriction dielectric composition / 2395534
Invention relates to filled polymer compositions used to make electrically insulating friction bearings. The antifriction dielectric composition contains 50-60 wt % fabric with surface density of 180-220 g/m2 made from polyphenylene 1-3-4-oxadiazole thread with thickness of 80-110 tex and 40-50 wt % polymer binder - chlorine-containing polyglycidyl arylene diamine epoxy resin.
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FIELD: machine building. SUBSTANCE: procedure for application of hard anti-friction epoxy coating on metal surface consists in preparing powder composition and in its further gas-flame sputtering. As epoxy resin in powder there is used soft pre-condensate of epoxy diane resin with molecular weight from 340 to 600 with aromatic amine at amount of 0.1-0.7 from stoichiometry mixed on rollers or in an extruder with the rest amount of aromatic amine to stoichiometry 0.9-1.2 and mixture of anti-friction powder and fibrous cut filler at amount from 50 to 250 wt. shares per 100 wt. sh. of mixture of resin with amine. Before gas-flame sputtering surface of metal is treated with a mixture of phosphoric acid (A), metal or its oxide (B) and phosphate or ammonia polyphosphate (C) at ratio A:B:C from 92:6:2 to 60:30:10. EFFECT: reduced temperature of coating hardening at raised strength properties and deformation heat resistance. 1 cl, 2 tbl, 1 ex
The invention relates to a method of applying a low friction coating designed primarily for couples friction wheel flange-rail, protecting them from wear, and can be used in a variety of friction to reduce friction, as well as for corrosion protection and other purposes. Known solid lubricants on the basis of the hardened epoxy systems for a pair of friction wheel flange - rail and the method of their derivation (see alternative 1 SU 1.752.188 A3, bull. No. 28 of 30.07.1992). The drawbacks of such lubricants are complex technology application, excessively long curing cycle - 140-150°C for 24 hours, low strength properties and insufficient adhesion to steel. Quite widely used flame spraying of polymers, including epoxy powders, metal surfaces, including anti-friction coatings (closest prototype is a monograph Vaibhava and other Polymers in marine engineering. Ed. "Shipbuilding", 1975 page 7, 202-204, 225). In this monograph describes a method for epoxy powders and flame spraying. The disadvantages of this method are the need for pre-heating the substrate, at least up to 135°C (see str), in some cases up to 200°C (see str), low tensile strengths and modulus of elasticity in compression, and is also insufficient adhesion to steel and low deformation resistance. At the same time, we know that massive metal objects, as well as rail or wheel, it is impossible to warm up to 135°C in workshop conditions, especially in the field. As the load on the wheel flange - rail significantly exceed the strength characteristics of the described compositions. The aim of the invention is a method of applying a solid anti-friction coatings, flame spray provides a decrease in temperature curing coatings up to 70-90°C and increase their strength properties and deformation resistance. This objective is achieved in that for implementing the method as epoxy resin powder used low-melting precondensed epoxy Dianova resin molecular weight from 340 to 600 with an aromatic amine in an amount of 0.1 to 0.7 from stoichiometry mixed on a roll mill or in an extruder with the rest of the aromatic amine to the stoichiometry of 0.9-1.2 and a mixture of anti-friction powder and chopped fibrous filler in an amount of from 50 to 250 parts by weight per 100 parts by weight of a mixture of resin with an amine, and a metal surface before flame spraying process with a mixture of phosphoric acid (A), metal or its oxide (B) and phosphate or ammonium polyphosphate (C), in the ratio A:B:92:6:2 to 60:30:10. Example 1 Preparation of a powder composition In a reactor equipped with obog is evom and stirrer, download 100 parts by weight of epoxy Dianova resin brand ED-20 (mm 390, GOST-10587-85) then heated to 70°C. and poured molten aromatic polyamine brand And representing aminoformaldehyde condensate, consisting of a mixture of isomers of 4,4'-diaminodiphenylmethane and 3-4 nuclear (benzene rings) primary amines (TU 2473-342-05763441-2001), in the amount of 9 parts by weight, i.e. of 0.4 of the stoichiometric amount required for the calculation for curing. The composition is stirred at t=70°C for 10 minutes, then pour out on a baking sheet and kept in the shop during the day. Thus obtained precondensed is a hard, brittle product with tPL=70°C with a retention period of not less than two months. Mixing precondensed with other ingredients carry on rollers with a grain size of 1.25 at t=65°C for 5 minutes, to 100 parts by weight of precondensed added to 13.5 parts by weight (0.6 from stoichiometry) aromatic polyamine and 150 parts by weight of a filler consisting of 130 parts by weight of chopped glass fiber with a diameter of 13 microns and a length of 5 mm, 15 parts by weight of graphite and 5 parts by weight of PTFE powder. Filmed with rollers, the material is subjected to crushing and grinding in a ball mill. The resulting powder was stored in the warehouse for at least 3 months. Coating Before coating the metal steel is surface treated in shop or field conditions with a mixture of phosphoric acid (A), zinc oxide (B) and ammonium polyphosphate (C) in the ratio a:B:=76:18:6, after which it sprayed powder with installation for flame spraying OTU-4 within 60 seconds. During this time, the metal surface when exposed to a flame jet (t=580°C) time to warm up in a thin layer to t=100°C and at the expense of phosphorus - and nitrogen-containing components, on the surface of the metal powder coating has time to melt and harden. The parameters of the method in examples 2÷5 are shown in table 1, and properties of the coatings according to the present method in comparison with the known technical solutions in table 2. As can be seen from table 2, the inventive method has important advantages. It allows you to apply coatings on solid metallic products, such as rails and wheels of wagons and locomotives, providing high strength properties.
The method of applying a solid anti-friction epoxy coatings on a metal surface, comprising the operations of preparation of the powder composition and its further flame spraying, characterized in that as the epoxy resin powder used low-melting precondensed epoxy Dianova resin molecular weight from 340 to 600 with an aromatic amine in an amount of 0.1 to 0.7 from stoichiometry, mixed on a roll mill or in an extruder with the rest of the aromatic amine to the stoichiometry of 0.9-1.2 and a mixture of anti-friction powder and chopped fibrous filler in an amount of from 50 to 250 parts by weight per 100 parts by weight of a mixture of resin with an amine, and a metal surface before flame spraying process a mixture of orthophosphoric acid (A), metal or its oxide (B) and phosphate or ammonium polyphosphate (C) in which the rate of a:B:92:6:2 to 60:30:10.
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