114results about How to "Improve metallic texture" patented technology

The invention provides a method for patterning a metal surface. The method comprises the following steps of: firstly, cleaning a metal substrate by chemical or physical treatment and polishing the metal substrate; secondly, performing anodic oxidation treatment on the metal substrate so as to form a porous oxide film on the surface of the metal substrate, wherein the porous oxide film is provided with a plurality of pores with the pore diameters of between 20 and 400 nanometers; thirdly, providing a pattern layer and absorbing ink particles into the pores of the porous oxide film in a printing mode, wherein the particle sizes of the ink particles are between 10 and 300 nanometers; and lastly, sealing the pores so as to form a pore sealing layer which is continuously covered on the surface of the porous oxide film.

The invention discloses a spraying-free polyester composition having special aesthetic effects and a preparation method and an application thereof. The spraying-free polyester composition comprises the following components: 70-98 wt% of polyester, 1-25 wt% of microspheres formed by coating a special-effect powder with a polymer, 0-10 wt% of a compatibilizer, 0.1-1 wt% of an antioxidant, and 0.1-0.5 wt% of a processing auxiliary agent. The special-effect powder is coated with a water-based polymer dispersion liquid to form the microspheres, and then the microspheres are dispersed to the polyester, so that the compatibility of the special-effect powder and the polyester can be significantly improved, flow marks formed on the surface of products in an extrusion or injection molding process are eliminated, and weld lines are reduced; and the prepared spraying-free polyester composition has relatively obvious metal texture, pearly flashing effects and other special aesthetic effects, and the market application range of spraying-free materials is greatly improved.

The invention discloses a spraying-free ABS composition with a special aesthetic effect, a preparation method and applications thereof. The ABS composition consists of 70 to 98 wt% of ABS resin, 1 to 25 wt% of polymer-coated microspheres with a special effect, 0 to 10 wt% of compatilizer, 0.1 to 1 wt% of antioxidant, and 0.1 to 0.5 wt% of processing aid. The powder with a special effect is coated by aqueous dispersion liquid to form microspheres, then the microspheres are dispersed into the ABS resin so as to improve the compatibility between the powder with a special effect and the ABS resin, thus the flow marks on the surface during the extrusion or injection moulding process can be eliminated, and the weld lines can be reduced. The prepared spraying-free ABS composition has a prominent metal texture and special aesthetic effects such as pearl-liked sparkling, and the application range of spraying-free materials is greatly enlarged.

The invention provides a vibration wear-resistant coating and a preparation method and a spraying process thereof. The vibration wear-resistant coating comprises PU type primer and UV photocurable finish coating. The PU type primer is prepared from 40-50 parts of thermoplastic acrylic resin, 10-20 parts of hydroxy acrylic resin, 1-3 parts of cellulose acetate butyrate, 1-2 parts of adhesion promoter, 2-4 parts of auxiliaries, 15-25 parts of pigment filler and 20-30 parts of mixed solvent; and the UV photocurable finish coating comprises the following components in parts by weight: 10-20 partsof high-functionality polyurethane acrylate, 15-25 parts of six-functionality polyurethane acrylate, 15-28 parts of four-functionality polyurethane acrylate, 4-10 parts of two-functionality polyurethane acrylate, 0.5-1 part of a dispersing agent, 0.5-1 part of a leveling agent, 0-10 parts of extinction powder, 0-25 parts of wax liquor, 0-10 parts of a photoinitiator and 20-30 parts of a mixed solvent. When the vibration wear-resistant coating is applied to a mobile phone (plastic material) frame or a mobile phone side key, the vibration wear resistance and durability of the product can be improved, and a coating film can be prevented from falling off after long-time use.

The invention provides application of a near field communication (NFC) antenna in a completely closed metal frame. A mobile terminal with the completely closed metal frame also comprises a rear cover, two arbitrary points on the metal frame are taken as a feeding point and a grounding point of the NFC antenna, meanwhile, two arbitrary points on the metal frame are taken as a feeding point and a grounding point of a mobile communication antenna, the feeding point of the NFC antenna is connected with a radio frequency identification circuit module through a first inductor, and the feeding point of the mobile communication antenna is connected with a mobile communication radio frequency circuit module through a first capacitor. Aiming at the NFC antenna design of the mobile terminal with the completely closed metal frame, the NFC antenna is applied to the mobile terminal with the completely closed metal frame; the problem of mutual influence with various mobile communication antennas is solved by connecting impedance components to the feeding points; and meanwhile, greater flexibility and design freedom are brought to the arrangement of the feeding points and the grounding points by debugging a matching circuit.

The invention provides a processing method for a frame. The processing method comprises the following steps: forming a metal plate, thereby acquiring a formed frame which is provided with a decorative surface, and adopting laser in different directions for carving the decorative surface and forming a decorative pattern according to the shape of the decorative surface, wherein the incident angles of the laser emitting to the decorative surface are at 80-100 degree. The invention also provides the frame processed according to the method and a terminal comprising the frame. According to the technical scheme, the appearance texture of a metal frame, such as a mobile phone frame, is increased.

The invention provides a handheld device including a body, a first functional key and a first antenna. The first functional key is coupled with the body used for providing the first function and defining a first space. The first antenna is disposed in the first space and combines with the first functional key.

The invention discloses a coating preparation method of an automobile part. The coating preparation method comprises the following steps: selecting a plastic electroplating part manufactured by adopting the highlighting nickel process, and enabling the plastic electroplating part to be subjected to seven process steps: pretreatment, primer spraying, primary levelling, colored paint spraying, secondary leveling, baking, and discharging. The coating preparation method of the automobile part has the benefits as follows: through reasonable selection of materials, pretreatment process and the coating system, a diversified color effect is achieved, the prepared coating has a high plumpness, high grade of transparency and highly metallic appearance, the coating effect and color diversity are enriched, the scratch resistant and ageing resistant performances are realized without additionally arranging a protecting coating, the high-performance requirements of the surface coating of the automobile part are met, the long-term usage of the high-cost process of performing paint spraying after vacuum coating is avoided, and the production cost is further reduced.

The invention relates to the field of automotive materials, in particular to a resin composition applicable to laser welding and with high metal texture and a preparation method thereof. The resin composition comprises, by weight, 100 parts of matrix resin, 0.05-5.0 parts of laser powder, 0.1-5.0 parts of metal pigment, 0.05-5.0 parts of pigment additive and 0.1-1.0 part of antioxidant. The preparation method includes: sufficiently mixing the matrix resin, the laser powder, the metal pigment, the pigment additive and the antioxidant in a low-speed mixer, feeding into a double-screw extruder through a metering device, performing screw conveying, shearing and mixing to allowing the materials to sufficiently melt and mix, and performing extrusion, drawing, cooling and grain-sized dicing to obtain the resin composition applicable to laser welding. The prepared resin composition with high metal texture can have excellent laser welding performance.

The invention provides a surface treating method of a metal housing, including: providing a workpiece having metal materials on a surface of the workpiece; carrying out a surface pretreatment on the surface of the workpiece to clean the surface, the surface pretreatment including a degreasing and washing step; and proceeding a titanizing treatment on the surface of the workpiece to form a titanizing layer on the surface of the workpiece, the titanizing layer being formed by titanizing into structural voids of the workpiece.

The invention provides a mobile phone casing and a preparation process thereof. The mobile phone casing contains the following raw materials in parts by weight: 1-1.8 parts of Mg, 0.5-1.1 parts of Si, 0.3-1 part of Co, and the balance is Al and Unavoidable impurities. The aluminum alloy shell provided by the present invention has very excellent stamping performance and high strength, and is especially suitable for the preparation of mobile phone shells that need to be stamped and formed through multiple passes, and at the same time require high strength, and meet high appearance and performance requirements. Requirements for thin-walled shell members. The coated decorative film layer makes the mobile phone shell have the advantages of high brightness and metal texture, and has high brightness and good adhesion.

The invention discloses exterior wall coating, and in particular relates to high-strength antifouling nanometer exterior wall coating, which is produced for the architectural decoration industry. The high-strength antifouling nanometer exterior wall coating comprises the following components in parts: 1-10 polyvinyl alcohol, 30-50 isobutyl alcohol, 10-20 sodium pyrophosphate, 1-5 high-strength cellulose, 400-500 nano titanium dioxide, 120-150 calcite powder, 100-120 sierozem powder, 300-400 water, 15-35 water glass and 10-30 bentonite. Used as the exterior wall decorative coating, the invention has the advantages of high hardness, washability and long storage period, favorably inhibits propagating growth of mildew and algae, and has better elastic extensibility in order to better adapt to surface layer cracking caused by deformation of a base layer and has a covering function for fine cracks of the base layer; and the high-strength antifouling nanometer exterior wall coating also has the characteristics of better metal texture, over-long outdoor durability and low production cost with respect to an imitation aluminium-plastic plate decorative effect.

The invention discloses an instrument board assembly for a vehicle. The instrument board assembly comprises an instrument board body (1), wherein the instrument board body (1) is provided with an instrument cover (2), a central control panel (3), a fuse box (4), a left angle board (5), an assistant-driving decorative strip assembly, a driver right lower skirt board (6) and an assistant-driving right lower skirt board (7). The instrument board assembly is characterized in that a plurality of fastener seats are arranged on the back surface of the instrument cover (2) and are internally provided with fasteners; corresponding to the installing surfaces in installing holes, a plurality of installing columns are arranged on the instrument board body (1); a connecting frame (12) is fixedly connected to the installing columns; the connecting frame (12) is provided with fastener matching holes; and the instrument cover (2) is fixedly connected on the instrument board body (1) by the fasteners. The instrument board assembly disclosed by the invention has the advantages that the structure is simple, all parts are fixedly connected on the instrument board body (1) by fastening feet or fasteners, the installation is convenient and fast, the connection is firm and stable, and by various surface treatment effects, the aesthetic feeling of the appearance of the instrument board assembly can be greatly improved.

The invention relates to a coating for automotive upholstery, in particular to a high-wear-resistance coating for automotive upholstery and a preparation method thereof.The high-wear-resistance coating for automotive upholstery comprises a component A and a component B. The component A comprises, by weight, 2-20 parts of effect pigment; 10 to 60 parts of main resin; 3 to 30 parts of organic fluorine-silicon modified resin; 2-20 parts of a shaking auxiliary agent; 0.5 to 10 parts of an auxiliary agent; 10 to 40 parts of a solvent; a component B: 2 to 20 parts of diisocyanate; 0.2 to 2 parts of an auxiliary agent; and 2-20 parts of a solvent. Compared with the prior art, the modified aldehyde ketone resin is selected as a matrix, the adhesion performance between a paint film and a material can be effectively improved, and the prepared paint is good in water resistance and chemical resistance. The modified aldehyde ketone matrix resin has high molecular weight, can effectively improve the Flip-Flop value of the silver powder, enables the arrangement effect of the silver powder to be excellent, can improve the shielding power of the metallic pigment, and can effectively improve the water resistance, alcohol resistance and high weather resistance of a coating.

The invention discloses a PU antibacterial coating as well as a preparation method and application thereof. The PU antibacterial coating comprises a component A and a component B, the component A is prepared from the following raw materials: hydroxy acrylic resin, thermoplastic acrylic resin, saturated polyester resin, aluminum paste, an antibacterial agent, a diluent, a drier and a flatting agent; and the component B is prepared from the following raw materials: a hexamethylene diisocyanate tripolymer and a solvent I. According to the PU antibacterial coating, the solid content is 35% or above during construction, and VOC emission is reduced (the VOC emission value is smaller than or equal to 700 g/L); the metal texture of the aluminum-silver powder paint is improved; and meanwhile, the PU coating disclosed by the invention is good in antibacterial effect, good in antibacterial coating dispersity, high in antibacterial efficiency and good in antibacterial durability.