A method is provided of cleaning of a portion of a mold component, the portion of the mold component including a passage configured, in use, to allow passage of fluid and to prevent passage of melt, the method comprising: entering the mold component into a cleaning configuration, whereby a portion of the passage becomes part of a molding surface; performing a molding cycle to fill in at least the portion of the passage with molding material for incorporation and removal of a residue there from. Also provided is a mold having a first mold half and a second mold half, the halves being movable relative to each other. A mold shut height adjustment apparatus can provide for a change in the mold shut height.

Reusable cartridges allow the time consuming resin preparation and processing steps to occur offline and not affect the cycling time of the injector. Cartridges also greatly simplify the operation of RTM injectors as preparation simply consists of loading a warmed ready-to-use resin cartridge and performing the injection.

A method for providing parts of waterproof and breathable shoes, parts of waterproof and breathable shoes provided with the method, and waterproof and breathable soles provided with the shoe parts. The method uses a mold including a first element and a second element, at least one of which has hollow regions of a matrix of impressions, which are filled with polymeric material in the fluid state by depositing it in the hollow regions or by injecting it while the mold is closed; a support made of flexible sheet is interposed between the first element and the second element and includes a waterproof and breathable functional element, on which, when the mold is closed, the polymeric material sets and adheres to the support.

An injection tube assembly comprising: a hollow cylindrical tube; a rotatable material stripping element, and a nozzle. Also, a polymer mixing system comprising: an injection tube assembly, a support apparatus for the injection tube assembly; a mixing apparatus; and if desired, an injection molding apparatus to produce an injection molded part with the mixed material.

A mixing tool with an integrated stripping element for removing material residue from its embodied mixing element.

An injection molding system including an injection molding device including an injection molding section that has a fixed section to which a fixed molding die and a movable molding die are attached and fixed and that is configured to mold a molded article by injecting a material containing a metal powder into a cavity, and a first movement section for moving the movable molding die between a molding die closed position and a molding die open position, a cleaning device that performs cleaning of the molded article by blowing air, and a control device, wherein when the movable molding die is not at the molding die closed position, the control device does not cause the cleaning device to blow air, and when the movable molding die is at the molding die closed position, the control device causes the cleaning device to perfom blowing of air.

An injection molding machine performs, during a period of a flushing process, a first acquisition process for acquiring a physical quantity for detecting an abnormality of a first drive apparatus.

Reusable cartridges allow the time consuming resin preparation and processing steps to occur offline and not affect the cycling time of the injector. Cartridges also greatly simplify the operation of RTM injectors as preparation simply consists of loading a warmed ready-to-use resin cartridge and performing the injection.

A method for cleaning a molding insert for injection-molding of single-use ophthalmic lens molds comprises the steps of providing an insert holder and a molding surface of the molding insert faces away from the insert holder. A dry ice nozzle comprises an inlet for the supply of dry ice, a nozzle channel comprising a longitudinally extending diverging inner wall portion terminating in an outlet opening of the nozzle channel, and a nozzle housing with a circumferentially running distal end wall. The nozzle housing further comprises a housing wall portion extending away from the distal end wall to define an exhaust channel. The method further comprises positioning the dry ice nozzle on the insert holder, supplying dry ice particles to the nozzle inlet to generate a jet of dry ice particles impinging on the molding surface of the molding insert, and removing exhaust gases.

Provided is a maintenance method for a discharge unit which has a nozzle hole and plasticizes a material containing a thermoplastic resin to generate a plasticized material. This maintenance method includes a heating step of heating a material or a plasticized material present in a flow path which communicates with a nozzle hole and through which the material or the plasticized material passes at a temperature equal to or higher than the thermal decomposition temperature of the material or the plasticized material, and a releasing step of releasing the material or the plasticized material thermally decomposed in the heating step from the flow path.