Abstract:
A wheel component, method, and tool device for a bicycle, including a plurality of integrally interconnected component parts, which form a spoked rim, wherein the rim and spokes are manufactured of a fibrous composite material by an injection molding process with fluid injection, wherein the liquefied fibrous composite material is injected into a cavity of a tool device, and a fluid is injected into the partially liquid fibrous composite material within the cavity to form at least one hollow space within the component part. A further component part forming a spoke, is manufactured by an injection molding process, wherein a mold core device for forming a hollow space within the spoke is disposed within a further cavity of the tool device. The fibrous composite material is injected into the further cavity. The mold core device is retracted from the fibrous composite material to form a cavity in the spoke.
Abstract:
Disclosed herein is a process for the production of a moulded article (MA). Additionally disclosed herein is a method of using at least one blowing gas (C) in the production of a moulded article (MA) for reducing the warpage of the moulded article (MA), where the moulded article (MA) includes at least one thermoplastic polymer (A) and at least one reinforcing fibre (B). Further disclosed herein is the moulded article (MA) obtained by the process.
Abstract:
A passive horn integrally formed using thermoplastic vulcanized rubber includes a first outer casing, a second outer casing, an inner casing and an iron piece. The first outer casing includes a sealing ring, a folding ring and a vibrating membrane, and the sealing ring, the folding ring and the vibrating membrane are integrally injection molded into the first outer casing. A groove is disposed in the second outer casing, and the first outer casing is disposed in the groove. The back surface of the vibrating membrane is provided with a casing groove sequentially embedded with the inner casing and the iron piece. Furthermore, a preparation method of a passive horn integrally formed using thermoplastic vulcanized rubber, which, under the condition of integrated injection molding, may improve the yield rate, ensure product quality, save assembly time and labor cost, and improve production efficiency.
Abstract:
A container having an annular sidewall with upper and lower annular peripheral edges and a lattice structure of elongate ribs interconnecting the upper and lower annular peripheral edges, wherein the lattice structure is an open framework defining a plurality of sidewall openings, and a base having an annular peripheral edge which is integral with the lower annular peripheral edge of the sidewall, the annular peripheral edge of the base surrounding a base wall structure which is integral therewith, the base wall structure having at least one injection moulding sprue at a central region of the base wall structure, wherein the at least one injection moulding sprue is connected to the upper annular peripheral edge of the annular sidewall by the base wall structure, the annular peripheral edge of the base, the lower annular peripheral edge of the sidewall and the lattice structure of the sidewall, wherein the sidewall and the base are composed of a thermoplastic polymer and define a central concavity for packaging a product, and wherein the container further has a flexible sheet which is bonded to the lattice structure to cover the sidewall openings and form a sealed sidewall surface of the container.
Abstract:
The invention relates to a method of manufacturing a plastic frame for a two-wheeler having at least one hollow space in the interior by means of plastic injection molding having a series of method steps, wherein a fluid is injected to displace the plastic core from the component cavity after the injection of a preferably thermoplastic plastic melt into a closed injection molding tool.
Abstract:
The present disclosure relates to a method for producing a container for washing and/or cleaning agents from a water-soluble material and to a container that is obtained in accordance with the method as contemplated herein.
Abstract:
A center-portion molding member having a center-portion transfer shape surface and a side wall surface is inserted and fitted in a frame-portion molding member having a frame-portion transfer shape surface to form a part of a cavity. The center-portion molding member has a groove portion in the side wall surface. The groove portion protrudes from the frame-portion transfer shape surface. Before injected resin transfers a shape of the center-portion transfer shape surface, the side wall surface of the center-portion molding member is sealed with the resin to form, between the center-portion transfer shape surface and the resin, a space in which gas is confined.
Abstract:
A blow-injection method for producing plastic flower pots comprising the following steps: fixing the fixed half, locking the moving half, injection, pressure maintaining, cooling, opening mould and ejection, wherein the gas pin is connected to the fixed half, and in pressure maintaining step, the nitrogen is blown in via the gas pin. The present invention integrate blow molding with injection molding, and is one-step formed, so the edge of the pots produced by the method of the invention is smooth and round, the edge of the pot is three-dimensional, Also, the center of the edge of the pot is hollow, the weight is reduced to enable cost-saving.
Abstract:
A gas injection moulding method comprising injecting a melt into a mould and injecting gas into the melt to form a gas cavity in the melt, wherein the melt is cooled by use of injection gas cooled to below the external ambient air temperature and/or by a continuous flow of injection gas through the mould.
Abstract:
The invention concerns the production of articles comprising at least a rigid element (1) and at least an element (2) made of a thermoplastic material obtained by moulding. The rigid element (1) has a profiled transverse section defining a concave space, wherein is positioned at least partly an element made of thermoplastic material.