58results about How to "High heat and corrosion resistance" patented technology

A Ni-based alloy hardened with the γ′ phase, which is able to exhibit not only superior strength at high temperatures, but also excellent hot corrosion resistance and oxidation resistance at high temperatures in spite of containing no Re or reducing the amount of Re. The Ni-based superalloy contains, by weight, C: 0.01 to 0.5%, B: 0.01 to 0.04%, Hf: 0.1 to 2.5%, Co: 0.8 to 15%, Ta: more than 0% but less than 8.5%, Cr: 1.5 to 16%, Mo: more than 0% but less than 1.0%, W: 5 to 14%, Ti: 0.1 to 4.75%, Al: 2.5 to 7%, Nb: more than 0% but less than 4%, V: 0 to less than 1.0%, Zr: 0 to less than 0.1%, Re: 0 to less than 9%, at least one of platinum group elements: 0 to less than 0.5% in total, at least one of rare earth elements: 0 to less than 0.1% in total, and the rest being Ni except for unavoidable impurities.

The invention discloses a powder core wire material for preparing a nickel-based coating, a preparation method and application of the coating, and belongs to the field of thermal spraying in material processing engineering. The atomic percentage of the drug core composition is: Cr: 20-35at.%; B: 30-55at.%; C: 2.5-5.5at.%; Ni: balance; the tape used for the powder core wire sheath is Ni-Cr tape ;Powder core wire material filling rate: 32%. When preparing nickel-based coatings containing Cr23C6 ceramic particles reinforced phase by arc spraying, the substrate needs to be pretreated first. Spraying process: voltage 28-34V; current 160-220A; spraying distance 190-210mm; compressed air pressure 0.5-0.6MPa . The invention can obtain a coating with high hardness, good wear resistance and corrosion resistance, and improves the service stability of water-cooled wall tubes and superheater tubes in waste recycling WTE garbage incinerators.

The invention relates to a sea climate resisting paint used for performing anti-corrosive treatment on engineering parts. The paint comprises the following components: 30.0 to 50.0 grams of aluminum-zinc-silicon alloy powder, 10.0 to 25.0 milliliters of organic solvent, 1.0 to 4.0 grams of nanometer-scale oxide particle reinforcing agent, 15.0 to 30.0 milliliters of deionized water, 2.0 to 5.0 grams of binder, 1.0 to 3.0 grams of corrosion inhibitor, 0.1 to 2.0 milliliters of dispersant and 0.1 to 2.0 grams of thickener, wherein the aluminum-zinc-silicon alloy powder consists of aluminum (Al), zinc (Zn), silicon (Si), rhenium (RE), titanium (Ti) and nickel (Ni).

The invention discloses an anti-molten aluminum corrosion coating. The coating is characterized by comprising at least three sub-coatings, namely the alloy layer arranged on the surface of a substratein a coating mode, a ceramic layer arranged on the surface of the alloy layer in a coating mode and a hole sealing layer arranged on the surface of the ceramic layer in a coating mode. The anti-molten aluminum corrosion coating has high-temperature abrasion resistance, aluminum sticking resistance, molten aluminum corrosion resistance, large bonding strength and excellent thermal shock resistance. Moreover, a preparation method of the anti-molten aluminum corrosion coating is easy to implement, coating materials are easy to obtain, and the production cost is reduced.

The invention discloses a laser surface treatment method for improving the thermal corrosion resistance of a thermal barrier coating, belonging to the technical field of treatment of thermal barrier coatings. The method comprises the following steps: S1, ultrasonically cleaning the surface of the thermal barrier coating, and adjusting the spot shape of a laser to a rectangular shape; S2, adjustingthe laser in the step S1 to emit low energy density laser, and carrying out self-preheating scanning on the thermal barrier coating treated in the step S1; S3, adjusting the laser in the step S1 to emit high energy density laser, and carrying out re-melting scanning on the thermal barrier coating treated in the step S2; S4, adjusting the laser in the step S1 to emit medium energy density laser, and performing a slow-cooling scanning on the thermal barrier coating treated in the step S3; S5, naturally cooling the thermal barrier coating treated in the step S4 to room temperature, and then using compressed air to remove impurities on the surface of the coating cooled to room temperature. After the coating is treated by using the method, the coating is smooth and dense, the thermal corrosionof corrosive salt is inhibited, and the service life of the coating is prolonged.

The invention relates to a high-temperature alloy core rod applied to planetary rolling mill for rolling copper and copper and a preparation method of the high-temperature alloy core rod, and belongsto the technical field of metal machining. The high-temperature alloy core rod comprises 11.50-14.00% of Cr, 3.80-5.2% of Mo, 5.50-6.50% of Al, 0.50-1.00% of Ti, 1.80-2.80% of Nb and Ta, 0.005-0.020%of B, 0.08-0.20% of C, 0.050-0.20% of Zr, 0-0.50% of Si, 0-0.50% of Mn, 0-0.015% of P, 0-0.015% of S, 0-2.50% of Fe and the balance Ni. In the preparation process, a mother alloy cast ingot is prepared through vacuum induction smelting, vacuum induction remelting is carried out, a high-temperature alloy core rod blank is prepared through investment casting, the blank is subjected to hot isostaticpressure treatment and subsequent heat treatment, then the blank is polished and subjected to finish machining, and finally the core rod is subjected to surface aluminizing treatment to improve the surface hardness and corrosion resistance at high temperature. The high-temperature alloy core rod prepared through the preparation method has relatively high comprehensive mechanical property, long infatigue life and high in high-temperature strength, the service life of a die is obviously prolonged, the preparation process is simple, and the process is short.

The invention discloses magnesium-silicon-containing chromium-free zinc-aluminum coating anti-corrosive paint which comprises an A component and a B component at a mass ratio of 3:1, wherein the A component comprises the following raw materials: allumen powder, nano-silica, sodium lignosulphonate, benzotriazole, sulpho-diethylene glycol, triphenylphosphine and deionized water; the B component comprises the following raw materials: zirconium tetrafluoride, gamma-aminopropyl triethoxy silane, inositol hexaphosphate, cellulose acetate-butyrate, ethanol and deionized water; and the allumen powder comprises Zn, Al, Mg and Si. The paint has the characteristics of no toxicity, harmlessness, no pollution, low-temperature immediate processing, easiness in operation, extensive raw material sources, low price, cleaner production and the like.

The invention discloses a manganese containing anticorrosion paint with chromium-free zinc aluminium coating, and the A and B two-component are composed according to 3:1 mass ratio, wherein, A component comprises the following raw materials: zinc aluminium alloy powder, nanometer silica, sodium lignosulfonate, benzotriazol, sulfo diethylene glycol, triphenyl phosphine and deionized water; B component comprises the following raw materials: zirconium tetrafluoride, gamma-amino propyl triethoxysilane, inositol hexaphosphate, cellulose acetate butyrate, ethanol and deionized water. The zinc aluminium alloy powder is composed of Zn, Al, Ti and Mn. The product has the characteristics of nontoxicity, innocuity, no pollution, low temperature rapid treatment, simple operation, wide raw material source, low price, cleaning production, etc.

The invention discloses a nickel-manganese-silicon containing anticorrosion paint with chromium-free zinc aluminium coating, and the A and B two-component are composed according to 3:1 mass ratio, wherein, A component comprises the following raw materials: zinc aluminium alloy powder, nanometer silica, sodium lignosulfonate, benzotriazol, sulfo diethylene glycol, triphenyl phosphine and deionized water; B component comprises the following raw materials: zirconium tetrafluoride, gamma-amino propyl triethoxysilane, inositol hexaphosphate, cellulose acetate butyrate, ethanol and deionized water. The zinc aluminium alloy powder is composed of Zn, Al, Ni, Si and Mn. The product has the characteristics of nontoxicity, innocuity, no pollution, low temperature rapid treatment, simple operation, wide raw material source, low price, cleaning production, etc.

The invention discloses a method for repairing the size of a nickel-based superalloy wear surface, relates to the field of aero-engine maintenance, and aims to repair the size of a wear surface of a part made of a nickel-based superalloy material. According to the technical scheme, the nickel-based high-temperature alloy abrasion surface size repairing method comprises the steps that S1, repairing pretreatment is conducted, specifically, the abrasion surface of a part is cleaned, shielding protection before sand blasting is conducted on the portion outside a repairing area, and then sand blasting coarsening is conducted on the repairing area; s2, NiAl powder is subjected to plasma spraying on the repaired area, and a bonding bottom layer is formed; s3, CoCrNiW powder is subjected to plasma spraying on the bonding bottom layer, and a working face layer is formed; and S4, the repaired area is machined, so that the thickness and the surface roughness of the coating meet the technological requirements. The method is used for carrying out size repair on the worn surface of the part made of the nickel-based superalloy material, for example, the method is used for carrying out size repair on the end face of a shell of an outer cover of a gas turbine of an aero-engine.

The invention discloses nickel-magnesium-titanium-silicon-containing chromium-free zinc-aluminum coating anti-corrosive paint which comprises an A component and a B component at a mass ratio of 3:1, wherein the A component comprises the following raw materials: allumen powder, nano-silica, sodium lignosulphonate, benzotriazole, sulpho-diethylene glycol, triphenylphosphine and deionized water; the B component comprises the following raw materials: zirconium tetrafluoride, gamma-aminopropyl triethoxy silane, inositol hexaphosphate, cellulose acetate-butyrate, ethanol and deionized water; and the allumen powder comprises Zn, Al, Ti, Ni, Mg and Si. The paint has the characteristics of no toxicity, harmlessness, no pollution, low-temperature immediate processing, easiness in operation, extensive raw material sources, low price, cleaner production and the like.

The invention discloses nickel-magnesium-containing chromium-free zinc aluminum coating corrosion-resistant coating. The nickel-magnesium-containing chromium-free zinc aluminum coating corrosion-resistant coating consists of a component A and a component B, wherein the mass ratio of the component A to the component B is 3:1; the component A comprises the following raw materials: zinc aluminum alloy powder, nano-silicon dioxide, sodium lignosulphonate, benzotriazole, sulfo-diethylene glycol, triphenylphosphine and deionized water; the component B comprises the following raw materials: zirconium tetrafluoride, gamma-aminopropyl triethoxysilane, inositol hexaphosphate, cellulose acetate-butyrate, ethanol and deionized water; and the zinc aluminum alloy powder comprising Zn, Al, Ni and Mg. The product has the characteristics of no toxicity, no harm, no pollution, low-temperature quick treatment, simplicity in operation, wide sources of raw materials, low price, clean production and the like.

The invention discloses a chrome-free zinc-aluminum coating anticorrosive paint comprising nickel-titanium-manganese. The paint is composed of a component A and a component B with a mass ratio of 3:1. The component A comprises the raw materials of zinc-aluminum alloy powder, nano-silica, lignin sodium sulfonate, benzotriazole, thio diethylene glycol, triphenylphosphine, and deionized water. The component B comprises zirconium tetrafluoride, gamma-aminopropyl triethoxysilane, inositol hexaphosphate, butyl cellulose acetate, ethanol, and deionized water. The zinc-aluminum alloy powder is composed of Zn, Al, Ti, Ni and Mn. The product provided by the invention has the advantages of no toxicity, no harm, no pollution, low-temperature fast processing, simple operation, wide raw material source, low cost, clean production, and the like.

The invention discloses nickel-magnesium-titanium-manganese-containing chromium-free zinc aluminum coating corrosion-resistant coating. The nickel-magnesium-titanium-manganese-containing chromium-free zinc aluminum coating corrosion-resistant coating consists of a component A and a component B, wherein the mass ratio of the component A to the component B is 3:1; the component A comprises the following raw materials: zinc aluminum alloy powder, nano-silicon dioxide, sodium lignosulphonate, benzotriazole, sulfo-diethylene glycol, triphenylphosphine and deionized water; the component B comprises the following raw materials: zirconium tetrafluoride, gamma-aminopropyl triethoxysilane, inositol hexaphosphate, cellulose acetate-butyrate, ethanol and deionized water; and the zinc aluminum alloy powder consists of Zn, Al, Ni and Mg. The product has the characteristics of no toxicity, no harm, no pollution, low-temperature quick treatment, simplicity in operation, wide sources of raw materials, low price, clean production and the like.

The invention discloses a chrome-free zinc-aluminum coating anticorrosive paint comprising magnesium-manganese. The paint is composed of a component A and a component B with a mass ratio of 3:1. The component A comprises the raw materials of zinc-aluminum alloy powder, nano-silica, lignin sodium sulfonate, benzotriazole, thio diethylene glycol, triphenylphosphine, and deionized water. The component B comprises zirconium tetrafluoride, gamma-aminopropyl triethoxysilane, inositol hexaphosphate, butyl cellulose acetate, ethanol, and deionized water. The zinc-aluminum alloy powder is composed of Zn, Al, Mg, and Mn. The product provided by the invention has the advantages of no toxicity, no harm, no pollution, low-temperature fast processing, simple operation, wide raw material source, low cost, clean production, and the like.

The invention discloses a bimetal combined piston ring, an internal combustion engine adopting same and a piston sealing method. Specifically, the bimetal combined piston ring comprises a metal firstpiston ring and a metal second piston ring; the cross section of a main body of the first piston ring is stepped; the stepped surface is positioned on the inner circumferential side of the first piston ring; the inner circumferential surface of the lower section of a step is a conical surface inclined inwards towards the vertical surface of the step by 15-75 DEG; the cross section of a main body of the second piston ring is stepped; the stepped surface is positioned on the outer circumferential side of the second piston ring; and the outer circumferential surface of an upper section of the step is an outer inclined conical surface complementary to the cone angle of the inner inclined conical surface of the first piston ring. By applying the piston ring, the dynamic property of the internalcombustion engine can be improved, and meanwhile, the wear rate of the piston ring is reduced, so that the service life of the ring is prolonged.

The invention discloses a chromium-free zinc-aluminum coating anticorrosion material comprising manganese-silicon. The material is composed of a component A and a component B according to a mass ratio of 3:1. The component A comprises zinc-aluminum alloy powder, nano-silica, sodium lignosulfonate, benzotriazole, thio diethylene glycol, triphenylphosphine, and deionized water. The component B comprises zirconium tetrafluoride, gamma-aminopropyl triethoxysilane, inositol hexaphosphate, butyl cellulose acetate, ethanol, and deionized water. The zinc-aluminum alloy powder is composed of Zn, Al, Mn and Si. The material provided by the invention has the advantages of no toxicity, no harm, no pollution, low-temperature fast processing, simple operation, wide raw material source, low cost, clean production, and the like.

The invention discloses a laser surface treatment method for improving the thermal corrosion resistance of a thermal barrier coating, belonging to the technical field of treatment of thermal barrier coatings. The method comprises the following steps: S1, ultrasonically cleaning the surface of the thermal barrier coating, and adjusting the spot shape of a laser to a rectangular shape; S2, adjustingthe laser in the step S1 to emit low energy density laser, and carrying out self-preheating scanning on the thermal barrier coating treated in the step S1; S3, adjusting the laser in the step S1 to emit high energy density laser, and carrying out re-melting scanning on the thermal barrier coating treated in the step S2; S4, adjusting the laser in the step S1 to emit medium energy density laser, and performing a slow-cooling scanning on the thermal barrier coating treated in the step S3; S5, naturally cooling the thermal barrier coating treated in the step S4 to room temperature, and then using compressed air to remove impurities on the surface of the coating cooled to room temperature. After the coating is treated by using the method, the coating is smooth and dense, the thermal corrosionof corrosive salt is inhibited, and the service life of the coating is prolonged.