35results about How to "Strong metallic luster" patented technology

The inventio provides a three-dimensional bronzing method, comprising the steps of: 1. providing a screen printing plate; 2. coating disposable photosensory pulp on the screen printing plate, putting the screen printing plate coated with the photosensory pulp into an oven to be baked, and exposing by a printing-down machine; 3. printing disposable bronzing pulp on printed material with the exposed screen printing plate to form a preset pattern to be bronzed, and drying; and 4. setting a bronzing paper on a flat pressing flat bronzing machine, bronzing the printed material, and melting the surface layer of the bronzing pulp by means of heating and pressing to convert the golden powder on the bronzing paper and complete the operation of disposable bronzing to the pattern to be bronzed of the printed material. The three-dimensional bronzing method disposably produces the multicolour three-dimensional bronzing patterns and characters with good hand feel on the surface of textile or thin paper with the existing common equipment, thereby not only reducing the production cost but also improving the production efficiency to a certain degree.

The invention provides a preparation method of lace fabric with metallic luster. The preparation method comprises steps as follows: chitosan is dissolved in a citric acid water solution and sufficiently stirred until chitosan is completely dissolved to form a chitosan solution, nano titanium dioxide particles are added, a glutaraldehyde cross-linking agent is added after ultrasonic dispersion, the mixture is heated and stirred, and a chitosan / titanium dioxide solution is obtained; silk fibers and metal fibers are taken as raw materials, a base layer is prepared, nylon, spandex and metal fibers are taken as raw materials, a decoration layer is prepared, and lace gray fabric is obtained; the lace gray fabric is immersed in the chitosan / titanium dioxide solution, vibrated at the constant temperature under the ultraviolet irradiation condition, taken out, washed with water and dried, and the lace fabric with the metallic luster is obtained. The lace fabric prepared with the method has high elasticity, is skin-friendly, antibacterial and anti-static and further has intensive metallic luster.

The invention discloses a processing technology of an imitation metal back plate of a refrigerator, wherein the processing technology comprises the following steps: S1, compounding coloring powder on the lower surface of a surface layer film to obtain an imitation metal film with the thickness of 20-50 [mu]m; S2, uniformly stirring and mixing the raw materials of a base material, feeding into an extruder, plasticizing and extruding, feeding the extruded base material into a calender, and calendering to obtain a base plate; S3, compounding the imitation metal film and the base plate through a composite roller at the temperature of 160-180 DEG C, then feeding into a plastic suction machine, and after forming, slitting, to obtain an imitation metal plate; S4, attaching an aluminum foil to the other side face of the imitation metal plate, and forming a back plate blank; and S5, punching and bending the back plate blank, and then welding and assembling the back plate blank. The defects in the prior art are overcome, the appearance metal glossiness of the imitation metal back plate of the refrigerator is high, the imitation metal film is firmly compounded on the surface of the base plate, coloring powder is not prone to disengagement, and the fireproof grade is high.

The invention relates to a polyimide film externally coated with a metal conductive layer and a preparation method thereof. The polyimide film is provided with a polyimide insulating layer and a metal conductive layer and is characterized in that a middle bonding layer playing a role of bidirectional bonding is arranged between the polyimide insulating layer and the metal conductive layer. The middle bonding layer comprises the following components in percentage by weight: 35-50 percent of polyimide as a main component, 3-12.5 percent of graphite, 3-12.5 percent of conductive black carbon, 0.6-6 percent of silane coupling agent, 2-10 percent of nickel-silver curing agent, 4-16 percent of conductive paint conductivity promoting agent and 2-10 percent of leveling agent. The preparation method comprises the steps of coating, drying, curing for molding, polishing, and the like. The polyimide film externally coated with the metal conductive layer can be widely applied to the high-tech field of protective devices with special purposes, and the like of electronics, electrical appliances, electromagnetic shielding, electromagnetic radiation and power transmission and transformation projects.

The invention relates to a combined type heat-insulating baffle which is applied to directional solidification equipment and is used for increasing monocrystal solidification temperature gradient. The combined type heat-insulating baffle comprises graphite rings and a flexible graphite felt, wherein the graphite rings and the flexible graphite felt are combined into an annular body, the inner diameter of which is more than the outer diameter of a shell mould to be cast; and the graphite rings are divided into two layers, the upper-layer graphite ring is directly placed on a water cooling sleeve in a directional solidification furnace, the flexible graphite felt is filled between the two layers of graphite ring, a height difference exists between the height of the inner diameter of the upper-layer graphite ring and the height of the outer diameter of the upper-layer graphite ring, and the height from the inner diameter to the outer diameter is increased in a smooth transition manner. The combined type graphite high-temperature heat-insulating baffle disclosed by the invention is convenient to manufacture by just clipping the flexible graphite felt according to dimensions and placing the clipped flexible graphite felt on the graphite rings on the water cooling sleeve as well as directly placing the second-layer graphite ring on the graphite felt, no bolts and nuts are needed for fixation, the placement is convenient and the price cost is low. Compared with the prior art in which a hard graphite felt is used as the heat-insulating baffle, the combined type heat-insulating baffle has the advantage that the temperature gradient is increased by almost 50%.

The invention discloses a water-based roll-spray paint with water-resistance and high metallic luster and a preparation method thereof, wherein the water-base roll-spray paint is prepared by mixing the following raw materials in weight percentage: 30%-40% of acrylic resin, water-based polyurethane Grease 7%‑9%, water-based aluminum pigment 7%‑9%, water-based transparent color paste 5%‑7%, coupling agent 1%‑2%, surface slip agent 1%‑2%, diethylene glycol butyl Ether 14%‑18%, deionized water 25%‑33%. The water-based roller spray paint proposed by the invention has fast film formation and fast curing, high surface strength, smooth surface, good metallic gloss, excellent hiding power, and high hardness, water resistance, abrasion resistance and scrub resistance of the paint film. The preparation method of the water-based roller spray paint provided by the invention has the advantages of simple process, high production efficiency, easy cleaning, little environmental pollution, small volume of equipment used, and low price.

The present application provides a processing method for a casing, a casing and an electronic device. The processing method includes: providing a transparent substrate; coating an optical material on the surface of the substrate to form a substrate with metallic luster; Forming the metallic luster substrate; cutting the formed substrate to form the shell. The present application provides a processing method for a shell, and the shell made by the processing method can exhibit strong metallic luster.