Abstract: The present invention relates to fluid regulating valve, comprising a housing, a flow regulating member, and a gap controlling member. The housing has an inlet and a carrying part having a first outlet. The gap controlling member is located between the flow regulating member and the carrying part for regulating the gap between the carrying part and the flow regulating member. Fluid flows into the housing via the inlet, flows into the gap via the flow regulating member, drains off from the first outlet, and the fluid pressure of the fluid exerts pressure on the gap controlling member via the flow regulating member for controlling the flow rate of the fluid draining off the first outlet via the gap within a predetermined range by adjusting gap size using said gap controlling member. The fluid regulating valve according to the present invention is tolerant to damages in long-term usage.

Abstract: The present invention relates to an electrolytic machining method. For increasing size precision of electrolytic machining method, a metallic mask layer is formed on the surface of a workpiece whose material has high conductivity or volume electrochemical equivalent, whereby the metallic mask layer can be used as a sacrificial layer of electrolytic machining and simultaneously protects the non-machining region of the workpiece so as to reduce lateral machining of the workpiece Consequently, the size precision of electrolytic machining is enhanced. In addition, the feasibility of electrolytically machining a miniature interval between two machined structures is increased as well. In addition, the present invention provides a semifinished electrolytic workpiece, comprising a workpiece and a metallic mask layer formed on the surface of the workpiece. The conductivity or volume electrochemical equivalent of the metallic mask layer is smaller than that of the workpiece.

Abstract: A turntable structure to control function selection for a media player. The turntable structure includes a base, a retaining ring, a bearing assembly, a rotating assembly and a rotating shaft. The base has a central post. The central post has a protrusion and a positioning portion formed thereon. The retaining ring is disposed on the central post and has an engaging hole and a positioning groove. The protrusion is engaged in the engaging hole and the positioning portion is engaged with the positioning groove. A gap exists between the retaining ring and the central post to prevent deformation of the central post resulting from thermal expansion and contraction. The bearing assembly encircles the retaining ring. The rotating assembly is assembled on the bearing assembly. The rotating shaft is fit in the central post and connected to the rotating assembly.

Abstract: A turntable structure to control function selection for a media player. The turntable structure includes a base, a retaining ring, a bearing assembly, a rotating assembly and a rotating shaft. The base has a central post. The central post has a protrusion and a positioning portion formed thereon. The retaining ring is disposed on the central post and has an engaging hole and a positioning groove. The protrusion is engaged in the engaging hole and the positioning portion is engaged with the positioning groove. A gap exists between the retaining ring and the central post to prevent deformation of the central post resulting from thermal expansion and contraction. The bearing assembly encircles the retaining ring. The rotating assembly is assembled on the bearing assembly. The rotating shaft is fit in the central post and connected to the rotating assembly.

Abstract: An injection molding method for a mold having a first cavity and a second cavity. The injection molding method includes the steps of: (a) hardening a plastic film; (b) placing the plastic film in the first cavity; (c) injecting a molten first plastic material into the first cavity to attach the plastic film onto the surface of the first plastic material, such that the plastic film and the first plastic material combine to form a first object; (d) separating the first object from the first cavity; (e) placing the first object in the second cavity; (f) injecting a molten second plastic material into the second cavity to combine the first object with the second plastic material to form a second object; and (g) separating the second object from the second cavity.