92results about How to "Strong friction resistance" patented technology

Window sash counterbalances using curl springs and holders can increase resistance to sash drop without causing sash hop by using a high coefficient of friction bearing surfaces against which curled up coils of curl springs slide when uncurling or re-curling. The higher friction bearing material produces more frictional resistance to spring uncurling than to spring re-curling and thus resists drop without causing hop. This allows a wider range of sash weights to be counterbalanced by a fewer number of counterbalance forces, saves manufacturing cost.

The invention relates to jet coding printing oil and a preparation method thereof; the ink is prepared with the following raw materials and solvent by the weight percent: 15 to 35 of rosin modified resin, 3 to 15 of nitrocotton, 2 to 10 of pigment or dye, 20 to 50 of butanone, 5 to 20 of isopropanol and 10 to 30 of toluol. The steps are as follows: (1) mixed solvent which accounts for 40 percent of the total solvent is added into the pigment or dye while being stirred at 2000r / min to be fully dissolved with the temperature equal to or lower than 50 DEG C and the fineness after dissolution less than or equal to 5 Mu m, and the product is filtered for stand-by; (2) the rosin modified resin, the nitrocotton and the mixed solvent which accounts for 40 percent of the total solvent are dissolved while being stirred at high speed equal to or lower than 40 DEG C, and filtered for stand-by after being fully dissolved; (3) the dissolved pigment or dye liquid and resin liquid are mixed with the rest mixed solvent under the temperature equal to or lower than 40 DEG C, and then stirred evenly. All indexes are as follows: color: close to the label; fineness: equal to or less than 5 Mu m; viscosity: 10-15s / layer 4# cup.25 DEG C. The printing ink has stable ink performance, is not easy to block printing nozzles; the printing ink mark is clear; the ink can be firmly adhered to the substrate, is friction resistant and becomes dry quickly.

The invention belongs to the field of construction coating and particularly discloses light-storing long-afterglow light-emitting coating and a preparation method thereof. The light-storing long-afterglow light-emitting coating comprises a light emitting layer and a light reflecting layer. The light emitting layer comprises, by weight, 20-60 parts of organic resin, 15-25 parts of ethanol, 10-50 parts of light-storing powder, 0.3-1.7 parts of octadecanamide, 0.5-5 parts of powdered PED wax, 0.1-1.5 parts of coupling agent, 0.2-1.6 parts of stabilizing agent, 0.1-1.5 parts of antioxidant, 5-25 parts of fluorescent whitening agent, 1-5 parts of fumed silica and 1-5 parts of sodium tripolyphosphate. The light reflecting layer comprises, by weight, 10-30 parts of epoxy resin, 30-60 parts of filler, 0.2-2 parts of film-forming auxiliary, 0.5-4 parts of pigment, 5-20 parts of quartz material, 2-4 parts of organic bentonite and 5-15 parts of dimethyl benzene. The light-storing long-afterglow light-emitting coating is long in light emitting time, fast in drying and high in brightness.

The invention relates to a reflecting film and a manufacturing method as well as application of the reflecting film. The reflecting film comprises a substrate and a bottom liner surface and is characterized in that the substrate adopts a PET plastic film with high transparency; aluminum films are plated on both sides of the substrate; one surface of the substrate which is plated with the aluminum film is bonded with the bottom liner surface by oiliness pressure sensitive adhesive; a layer of silicone glass resin coating is coated evenly on another surface of the substrate which is plated with the aluminum film. The invention has the advantages that both sides of the substrate are plated with aluminum, thus having a high reflecting rate; if the aluminum film in one surface is scarified, the aluminum film in another surface can still reflect and the reflecting rate can reach more than 85 percent; the oiliness pressure sensitive adhesive has high viscosity and strong bonding force and can be used for more than three years; a reflecting layer can not be dropped off from the bottom liner surface; the surface coating hardness of the reflecting layer is more than 4H and the reflecting layer has strong friction resistance and weather resistance; the reflecting film used in a solar cooker is a new generation product of the solar cooker made by glasses previously, which has light weight, simple bonding and durable use. The reflecting film of the invention can not only be used in the solar cooker, but also be suitable for reflecting in a plurality of fields such as solar energy cooking ranges, vegetable greenhouses and fruit trees.

The invention provides a printing method for forming a trademark or a pattern on a shell. The method comprises the following steps of: providing a metal shell; printing a first printing ink layer on the metal shell and drying the first printing ink layer for 15 to 25 minutes at the temperature of between 100 and 150 DEG C, wherein the first printing ink layer comprises an epoxy resin; printing a second printing ink layer on the first printing ink layer and drying the second printing ink layer for 15 to 25 minutes at the temperature of between 100 and 150 DEG C, wherein the second printing ink layer comprises an epoxy resin; and printing a third printing ink layer on the second printing ink layer and drying the third printing ink layer for 60 to 120 minutes at the temperature of between 100 and 150 DEG C, wherein the third printing ink layer comprises an epoxy resin.

A manipulation device is for wheelchair footrests that have a pair of shafts (8) extending forwards from opposite forward sides of the main frame (2) and a pair of foot plates (9) pivoted at lateral portions to the shafts. This device has manual levers (21) at the forward sides and actuating means (40) that connects the levers (21) to foot plates (9) and consists of a resilient tube (41), a metal wire (42) and a setting retainer (43) for securing the tube to the wire. The tube (41) can elongate in response to an extraordinary tension exceeding a normal stress imparted to said tube, and the wire (42) loosely inserted in the tube (41) can alter an exposed length. An end of each wire (42) is connected to the foot plate (9) at its rear portion located near the shaft (8) pivoting the foot plate. An end of each tube (41) is connected to the manual lever (21) operating to pull up the tube (41) with the wire (42) such that the foot plate (9) rotates and rises to the upright idle position.

The invention discloses a manufacturing process for a heat transfer film. The manufacturing process comprises the steps of preparing a raw material, unreeling, coating a mold releasing agent, coating printing ink and coating glue agent. Polyethylene terephthalate (PET) is selected for a raw material substrate thin film which has the characteristics of being good in dimensional stability, uniform in tension and good in heat-resisting effect and mold releasing property. The solid content of the mold releasing agent is controlled to be 20%-25%, so that the defect that the volatile speed of solvent in the mold releasing agent is high and the drawback that the transferring effect is not obvious are overcome. Hot melt glue is selected for the glue agent, after the glue agent is coated and dried to form a film, the film texture is transparent, the surface where the mold releasing agent and the printing ink are coated has the excellent composite fastness and the distinguished flexibility, and the capacity of resisting friction, water, acid, alkali and other mediums is high. According to the transfer film produced through the process, multi-color patterns can be mapped at a time, color registering is not needed, layers of printed patterns are rich, and the color difference is small.

The invention relates to the technical field of cable production and processing, and in particular relates to a lubricating wear-resisting cable outer sheath material. According to the technical scheme, the lubricating wear-resisting cable outer sheath material is prepared from the following materials in parts by weight: 20-30 parts of high-density polyethylene, 10-15 parts of linear high-density polyethylene, 17-25 parts of medium-density polyethylene, 9-16 parts of linear medium-density polyethylene, 25-35 parts of low-density polyethylene, 13-18 parts of linear low-density polyethylene, 90-100 parts of polyvinyl chloride resin, 5-7 parts of carbon black, 40-50 parts of plasticizer, 3-8 parts of stabilizer, 20-26 parts of calcium carbonate or talcum powder, 2-4 parts of antioxidant and 1-3 parts of polyethylene wax. An outer sheath prepared from the material has excellent lubrication and wear-resisting properties, and therefore, the cable outer sheath is protected against damage due to friction in the mounting process.

The invention belongs to the technical field of anticorrosive coating, and particularly relates to long-lasting anticorrosive finishing paint for a metal substrate and a preparation method thereof. The long-lasting anticorrosive finishing paint comprises a component A and a component B, wherein the component A comprises the following raw materials in parts by weight: 35-45 parts of an epoxy-organosilicone resin modified acrylate-polyurethane emulsion, 10-15 parts of functionalized modified graphene, 12-18 parts of fillers, 5-10 parts of a pigment, 8-12 parts of a cosolvent, 0.3-0.8 part of a defoaming agent, 0.5-1 part of a leveling agent, 0.5-1 part of a thickening agent, 0.5-1 part of a water-based drier, 0.8-1 part of a wetting agent and 20-30 parts of deionized water; the component B comprises the following raw materials in parts by weight: 55-65 parts of an isocyanate curing agent and 35-45 parts of a cosolvent. The long-lasting anticorrosive finishing paint for the metal substrate has the advantages of long-lasting excellent anticorrosive performance, strong substrate adhesion, high mechanical strength, excellent friction resistance, excellent salt spray resistance, strong construction adaptability and the like.

The invention discloses water varnish for protection of a printable aluminum foil for drug packing and a preparation method of the water varnish. The water varnish comprises the following components by weight percentage: 10-54% of polyolefin emulsion, 10-40% of polyester emulsion, 0-10% of water-based blocked isocyanates, 1-5% of water soluble amino resin, 0-10% of water-based epoxy resin, 0.1-0.5% of auxiliary, 0.5-1% of viscosifier, 4-10% of polyhydric alcohol, 12-40% of alcohol diluent and 12-40% of water. The curing speed of the water varnish is high, and the heat resistance is high when a bubble cap and the aluminum foil coated with a VC layer are subjected to heat sealing; the surface tension (smoothness) can be adjusted within a certain scope, so that different surface printing requirements can be met, and the surface printing adaptability is high; an adhesion force between the water varnish and the surface of the aluminum foil is high, the transparency is good, the friction resistance is high, and the solvent resistance is good.

The invention discloses a water-based UV light-cured polyurethane coating and a preparation method thereof. The water-based UV light-cured polyurethane coating is prepared from the following components: 30-39 parts of aromatic polyurethane acrylate, 25-35 parts of phosphate modified acrylate, 3-5 parts of a photoinitiator, 4-8 parts of a nano anti-wear agent, 0.6-1.8 parts of a titanate coupling agent, 1-3 parts of filler, 0.6-1.8 parts of a water-based coating additive and 15-18 parts of water. Aromatic polyurethane acrylate is used as matrix resin and is subjected to polymerization reactionwith phosphate modified acrylate to form a hyperbranched oligomer with chemical bond connection acting force, then the nano anti-wear agent composed of a composite material is added, hydroxyl groups in molecules of a titanate coupling agent can form a bonding effect with a base material, and thus the adherence is greatly improved; and the water-based coating additive can improve the dispersity andcompatibility among the raw materials. Therefore, the water-based UV light-cured polyurethane coating has the characteristics of super wear resistance and high adhesive force, also has favorable acid / alkali resistance, and can be used for floors, furniture, wood fan blades, musical instruments and other wood products.