A method for making a composite piece comprised of a metal part and a glass-fiber-reinforced plastic part, comprising: providing a metal part with a receiving cavity and a flow guiding channel, the flow guiding channel having an inlet communicating with the receiving cavity and an outlet; introducing molten plastic reinforced with glass fibers into the receiving cavity to fill the receiving cavity and the flow guiding channel and overflows from the outlet to form a flash section; curing the molten plastic to obtain a plastic part; removing unwanted portion of the metal part together with a portion of the plastic part to obtain the composite piece, wherein the glass-fiber-reinforced plastic part includes an exposed surface and glass fibers exposed at the exposed surface are substantially parallel to each other. A metal-plastic composite part prepared by the method and an electronic device housing are also disclosed.

A method for manufacturing a plastic speaker grill is provided. The method includes the steps of providing a base member having a first side and an opposing second side and defining a thickness therebetween. The base member has a plurality of spaced blind holes wherein the first side is in communication with the plurality of blind holes and the second side defines a surface that is generally uniform and uninterrupted. The method further includes cutting the base member proximate the second side to remove a portion of the base member and define the speaker grill, and in response to cutting the base member, exposing the blind holes wherein the blind holes define apertures that extend completely through the speaker grill. A plastic speaker grill is provided having tightly-spaced and miniscule apertures.

An articulated tip part suitable for an endoscope, where the articulated tip part includes a distal end segment, a proximal end segment and a number of intermediate segments arranged between the distal end segment and the proximal end segment, the segments being joined together to form an articulated assembly of segments, a passage running along the length of the articulated tip part, and a bending element, the bending element being fastened to at least two segments and being arranged along a path which is essentially parallel to a centerline of the articulated tip part.

A microfluidic device is provided. A manifold having a first channel, a second channel, and a third channel configured to transport blood can be coupled to a substrate defining an artificial vasculature. The first channel can be configured to carry blood in a first direction. Each of the second and third channels can couple to the first channel at a first junction and can be configured to receive blood from the first channel. The second channel can be configured to carry blood in a second direction away from the first direction. The third channel can be configured to carry blood in a third direction away from the second direction. The first, second, and third channels can be non-coplanar.

A control valve includes a housing, a valve body arranged in a valve chamber of the housing, and a support portion slidably supporting an outer surface of the valve body in the valve chamber. The valve body is slidable on the support portion between an open position at which an outlet port is open and a closed position at which a seat surface of the valve body closes the outlet port. The valve body includes a skin layer forming the outer surface of the valve body, and a core layer under the skin layer. The outer surface of the valve body, other than the seat surface and a slidable area, includes a core exposed portion where the core layer is exposed without being covered with the skin layer.

An articulated tip part suitable for an endoscope where the articulated tip part includes a distal end segment, a proximal end segment and a number of intermediate segments arranged between the distal end segment and the proximal end segment, said segments being joined together to form an articulated assembly of segments, a passage running along the length of the articulated tip part, and a bending element, said bending element being fastened to at least two segments and being arranged along a path which is essentially parallel to a centerline of the articulated tip part.

A control valve includes a housing, a valve body arranged in a valve chamber of the housing, and a support portion slidably supporting an outer surface of the valve body in the valve chamber. The valve body is slidable on the support portion between an open position at which an outlet port is open and a closed position at which a seat surface of the valve body closes the outlet port. The valve body includes a skin layer forming the outer surface of the valve body, and a core layer under the skin layer. The outer surface of the valve body, other than the seat surface and a slidable area, includes a core exposed portion where the core layer is exposed without being covered with the skin layer.

A manufacturing method for a sealing gasket includes the following steps: S1, preparing raw material rubber and a first component, wherein the first component comprises a base body and a gluing layer, the gluing layer is attached to an upper surface of the base body; S2, placing the first component in an inner cavity of a forming mold, wherein the forming mold comprises an upper mold, a first main body surface of the upper mold is arc shaped, the forming mold further comprises a lower mold, and a second main body surface of the lower mold is arc shaped; S3, placing the raw material rubber in the inner cavity of the forming mold; and S4, vulcanizing the raw material rubber arranged in the inner cavity of the forming mold, such that the raw material rubber and the first component are integrated.

Rubber injection molds are provided. A rubber injection mold includes a binary form-stripping mold, a trinary form-stripping mold, and a quadruple form-stripping mold. The binary form-stripping mold can include an upper mold and a bottom mold movably connected to each other via a guide post. The trinary form-stripping mold can include an upper mold, a bottom mold, and a middle plate positioned between the upper mold and the bottom mold. The upper mold and the bottom mold movably connected to each other via a guide post welded to the bottom mold. The quadruple form-stripping mold can include an upper mold, a bottom mold, a middle plate, and a middle frame. A guide post is welded to the bottom mold. Side rails can be respectively arranged at two ends of the upper mold and the bottom mold. Upper mold handles are fixedly mounted in the side rails of the upper mold.

A molding system 10 for manufacturing a molded article Q by integrally molding a sheet-shaped insert member S and a molding material R, the molding system comprising: a sheet supply part 20 configured to supply the insert member S; a sheet heating part 30 configured to heat the insert member S; a molding apparatus 100 configured to form the molded article Q by integrally molding the insert member S and the molding material R; an ejector 200 including a delivery position 222 and configured to transfer the insert member S between the sheet heating part 30 and the molding apparatus 100 and to eject and transfer the molded article Q from the molding apparatus; and a transfer robot configured to transfer the insert member S or the molded article Q between the sheet supply part 20 and the ejector.