Abstract: A ceramic and plastic composite and a method for fabricating the same are disclosed. A chemical cleaning treatment, a microetching treatment, a hole reaming treatment, and a surface activating treatment are performed on the surface of a ceramic matrix to form nanoholes with an average diameter ranging between 150 nm and 450 nm. Plastics are injected onto the surface of the baked ceramic matrix to form a plastic layer. The plastic layer more deeply fills the nanoholes to have higher adhesion. Thus, the higher combined strength and air tightness exist between the ceramic matrix and the plastic layer to improve the reliability and the using performance of the ceramic and plastic composite.

Abstract: A ceramic and plastic composite includes a ceramic matrix and a plastic layer. Plastics are injected onto the surface of the baked ceramic matrix to form a plastic layer. The plastic layer more deeply fills nanoholes distributed on the surface of the ceramic matrix to have higher adhesion. Thus, the higher combined strength and air tightness exist between the ceramic matrix and the plastic layer to improve the reliability and the using performance of the ceramic and plastic composite.

Abstract: A ceramic and plastic composite and a method for fabricating the same are disclosed. A chemical cleaning treatment, a microetching treatment, a hole reaming treatment, and a surface activating treatment are performed on the surface of a ceramic matrix to form nanoholes with an average diameter ranging between 150 nm and 450 nm. Plastics are injected onto the surface of the baked ceramic matrix to form a plastic layer. The plastic layer more deeply fills the nanoholes to have higher adhesion. Thus, the higher combined strength and air tightness exist between the ceramic matrix and the plastic layer to improve the reliability and the using performance of the ceramic and plastic composite.

Abstract: A metal-and-resin composite includes a metal substrate and resin composition formed on the metal substrate. The metal substrate has a surface with nano-pores having an average diameter of about 30-55 nm. The resin composition is integrally bonded to the surface of the metal substrate having the nano-pores and filling the nano-pores. The resin composition contains crystalline thermoplastic synthetic resins.

Abstract: A housing, comprising: a substrate; a paint coating formed on the substrate, the paint coating defining a plurality of through grooves therein; and a metal coating, the metal coating being formed in the through grooves. A method for making housing, comprising: providing a substrate; applying a paint coating on the substrate by spray painting; forming a plurality of through grooves on the paint coating by etching; and forming a metal coating in the through grooves by electroplating.

Abstract: An electroplating method for magnesium and magnesium alloys, comprising: providing a magnesium or magnesium alloy substrate and pre-treating it to be cleaned; roughening the surface of the substrate; activating the surface of the substrate; chemically plating the substrate to form a nickel coating on its surface; and electroplating the substrate to form, in order, a first nickel coating, a copper coating, a second nickel coating, and a chromium coating on the chemically produced nickel coating.

Abstract: A surface treatment method for housings comprising: providing a metal housing and pre-treating it to be cleaned; electroplating the housing to form a hexavalent chromium coating on the surface of the housing; and electroplating the housing to form a trivalent chromium coating on the hexavalent chromium coating.

Abstract: A method for surface treating plastic products is provided. The method includes the steps of providing a plastic substrate, the plastic substrate being made of electroplatable material; forming at least one electroconductive coating on the plastic substrate surface by electro-less plating; forming a copper layer on the electroconductive coating by electroplating; partially etching the surface of the copper layer using a laser to form a rough area; and forming a top coating on the copper layer by electroplating. Both shiny appearance and dusky appearance of the plastic substrate can be present by this method.

Abstract: A method for surface treating a substrate includes following steps. Firstly, a substrate including a metallic surface capable of being electroplated with a metal coating is provided. Secondly, a first metal coating is electroplated onto the metallic surface of the substrate. Thirdly, an oxidized metal film is formed to cover the first metal coating. The first metal coating of substrate is blasted using quartz sand. The oxidized metal film is removed from the first metal coating. The second metal coating is electroplated onto the first metal coating.

Abstract: A method for electroplating a plastic substrate includes the following steps, a plastic substrate is firstly provided. The plastic substrate is then pretreated to form a noble metal coating. The noble metal coating is coated with a copper coating. A first chrome coating is electroplated onto the copper coating using a first electrolyte including a chromic component. A second chrome coating is electroplated onto the first chrome coating using a second electrolyte including a chromyl component.

Abstract: A cover for a mobile device includes a substrate with a surface including a patterned surface portion and a non-patterned surface portion. An ink coating is formed on the patterned surface portion of the substrate. A metal coating system is electroplated on the non-patterned surface portion of the substrate. The ink coating is recessed relative to the metal coating system.