40results about How to "Strong thickness" patented technology

The invention discloses a superhard self-lubricating coating tool and a preparation method thereof, and can be widely applied to cutting machining of dry cutting and refractory materials. A tool base material is high-speed steel, and a laminated superhard coating composed of a hard alloy layer, an aluminum oxide ceramic layer, a silicon nitride ceramic layer and a cubic boron nitride layer is arranged on the surface of a base body in sequence, a laminated coating has the self-lubricating effect; the laminated coating has the function of self-lubrication, and is prepared by adopting a plasma spraying method. The tool integrates high-speed steel, hard alloy, alumina ceramic and silicon nitride ceramic, cubic boron nitride and the laminated coating, the adding of a carbon nano pipe (CNTs) and a boron nitride nanopipe (BNHTs) improves the hardness, the wear resistance and the toughness of the coating, the whole tool not only has good toughness, but also has very high hardness and wear resistance; and in the cutting process, when the temperature is low, the graphene can have a lubricating effect, when the temperature is high, PbO, Mo and TiB2 can generate in-situ reaction to generate PbMoO4, TiO2 and B2O3 with a lubricating effect, so that the friction and abrasion of the tool in the cutting process can be reduced, and the service life of the tool is prolonged.

The invention discloses a preparation method of a deep and narrow gap melting electrode gas shielded welding contact tip. The copper contact tip is used as the base body; the copper contact tip is treated with a solvent method by hot dip aluminum plating, so that the surface of the copper contact tip is plated with an aluminum layer; In the electrolyte, the aluminum layer of the copper contact tip is micro-arc oxidized to obtain a welding contact tip with a high temperature resistant and insulating ceramic coating on the outer layer. The film layer of the contact tip of the invention has the advantages of thin thickness, high resistivity, good wear resistance and high temperature resistance, breaks through the size limitation of the insulation treatment of the traditional narrow gap melting electrode gas shielded welding contact tip, and can be applied to deep and narrow gap slopes Welding of mouth joints to improve welding efficiency.

The invention relates to a sandwich heat-preserving decorative board with mixed hollow porous fiber reinforced heat-preserving mortar and a manufacturing method.A heat-preserving core veneer of the heat-preserving decorative board is a formed veneer and provided with big and round through holes; a hanging part capable of being positioned is arranged at the inner side of a back plate and tightly attached to the back face of the heat-preserving core veneer, and the same big and round through holes are formed in the positions corresponding to the big and round holes in the heat-preserving core veneer; the ends of the hanging part capable of being positioned are provided with small and round holes, square holes and right-angled hooks used for connecting, installing and lapping the heat-preserving decorative board in a positioning mode; fiber grid cloth is arranged at the inner side of a panel and is spaced from the heat-preserving core veneer by 2 mm; the mixed hollow porous fiber reinforced heat-preserving mortar is poured into the periphery of the heat-preserving core veneer through sealed formworks, the panel, the back plate and sealed edges are formed after the mortar is hardened, and bridge-cutoff shear connectors are formed in the big and round holes; the decorative board has the advantages that a good integrated space stress structure is formed through overall pouring of the panel, the back plate, the bridge-cutoff shear connectors and the sealed edges, positioning and splicing are accurate, and the fireproof performance is improved.

The invention discloses a toughening and reinforcing in-situ reaction micro-texture self-lubricating coating cutter and a preparation method thereof. The base material of the tool is high-speed steel or hard alloy, and the surface of the base is made of PbO, Mo, TiB 2 A cubic boron nitride coating of , BNNTs, CNTs and graphene, the coating surface has a micro-texture; the coating is prepared by a plasma vacuum spraying method. The tool has good toughness as a whole, and the addition of BNNTs and CNTs makes the cubic boron nitride coating on the surface of the tool have good toughness, high surface hardness and wear resistance; during the cutting process, when the temperature is low, graphene can play a role Lubrication effect, PbO, Mo and TiB at high temperature 2 In situ reaction will occur to generate PbMoO with lubricating effect 4 、TiO 2 , B 2 o 3 Synergistically with the micro-texture, it can reduce the friction and wear of the tool during the cutting process and improve the tool life. The tool can be widely used in dry cutting and cutting of difficult-to-machine materials.

The invention relates to an illite mineral based waterborne anti-ultraviolet finishing liquid preparation method and application of waterborne anti-ultraviolet finishing liquid to high polymer material ultraviolet shielding and protection. High-purity illite is subjected to superfine treatment according to a wet milling method by making full use of lamellar structural characteristics and light reflection effects of illite, and consequently lamellar illite can be completely stripped into micro-lamellar illite thinner and smaller in particle size to enhance ultraviolet reflection and refractioneffects to shield ultraviolet to greater extent. Due to a high-purity superfine state of the lamellar illite, prepared illite-based finishing liquid is great in coating performance, aqueous, nontoxicand free of influences on textile hand feel. The method is simple in production process, low in cost, high in yield and efficiency and suitable for industrial production. The obtained superfine illitefinishing liquid has a great ultraviolet shielding performance and can be applied to anti-ultraviolet finishing of textiles and ultraviolet protection of outdoor products, and a novel idea is provided for high-added-value development and utilization of illite.

The invention relates to the technical field of glass, in particular to a preparation method of ultra-thin glass, comprising the following steps: (1) taking glass, soaking the glass in a thinning etchant, and performing the first thinning treatment on the glass; (2) The thinned glass is double-sided grinding and polishing; (3) The double-sided grinding and polishing glass is attached to the carrier glass, and then soaked in the thinning etchant, and the glass is subjected to the second thinning treatment to make Get ultra-thin glass. The ultra-thin glass preparation method of the present invention can prepare ultra-thin glass with thin thickness, strong light transmission, good softness, and high touch sensitivity. It is used to prepare ultra-thin glass with a thickness of 0.03mm.