A molding unit has a first molding station having a first mold having a first mold cavity, a second molding station having a second mold having a second mold cavity, a transfer unit having a support and at least a first core extending from the support. The transfer unit is arranged for moving the first core into a first molding position at the first molding station and into a second molding position at the second molding station. The first core extends into the first mold cavity when the first core is in the first molding position and into the second mold cavity when the first core is in the second molding position. A core actuation unit is arranged so that at least at the first molding station the first core is moved relative to the support from a first core position into a second core position when the first core is moved into the first molding position.

A molding unit has a first molding station having a first mold having a first mold cavity, a second molding station having a second mold having a second mold cavity, a transfer unit having a support and at least a first core extending from the support. The transfer unit is arranged for moving the first core into a first molding position at the first molding station and into a second molding position at the second molding station. The first core extends into the first mold cavity when the first core is in the first molding position and into the second mold cavity when the first core is in the second molding position. A core actuation unit is arranged so that at least at the first molding station the first core is moved relative to the support from a first core position into a second core position when the first core is moved into the first molding position.

An injection-molding tool has a cavity-forming die and a cavity-forming core pin, which form at least a part of a cavity, provision is made for the injection-molding tool to comprise at least one core-centering device for centering and supporting the core pin. The core-centering device comprises at least one retaining pin guided in a bore of the cavity-forming die. The retaining pin is in contact with the core pin by way of an end face in a retracted position and, in an extended position, is drawn back such that the end face does not project beyond an inner surface of the cavity-forming die, in which the bore ends.

An injection-molding tool has a cavity-forming die and a cavity-forming core pin, which form at least a part of a cavity, provision is made for the injection-molding tool to comprise at least one core-centering device for centering and supporting the core pin. The core-centering device comprises at least one retaining pin guided in a bore of the cavity-forming die. The retaining pin is in contact with the core pin by way of an end face in a retracted position and, in an extended position, is drawn back such that the end face does not project beyond an inner surface of the cavity-forming die, in which the bore ends.

The invention relates to a process for producing a beam guiding grid (4), comprising a molding having a grid of passageways (40) and wall areas surrounding them, from radiation-absorbing metal powder and binder, especially tungsten powder and binder. Advantageous production is achieved in that the molding is produced by injection molding, wherein the homogenized mixture, as a prepared flowable injection compound, is injected using an injection molding machine into a molding tool (7) that produces the molding, into which movable mold cores (72) were introduced prior to filing with the molding composition.

The invention relates to a process for producing a beam guiding grid (4), comprising a molding having a grid of passageways (40) and wall areas surrounding them, from radiation-absorbing metal powder and binder, especially tungsten powder and binder. Advantageous production is achieved in that the molding is produced by injection molding, wherein the homogenized mixture, as a prepared flowable injection compound, is injected using an injection molding machine into a molding tool (7) that produces the molding, into which movable mold cores (72) were introduced prior to filing with the molding composition.

An assembly for manufacturing a wax moulding of a turbine engine blade has a wax injection mould in which a core is able to be mounted in a predetermined moulding position, the core including a main element and at least a first secondary element each including at least one functional part and a non-functional part, wherein the non-functional part of the first secondary element includes a rod portion extending in a longitudinal direction of the blade and housed in a first slot of the non-functional part of the main member, the mould including a first internal boss clamping said rod portion at the bottom of the first slot.

An assembly for manufacturing a wax moulding of a turbine engine blade has a wax injection mould in which a core is able to be mounted in a predetermined moulding position, the core including a main element and at least a first secondary element each including at least one functional part and a non-functional part, wherein the non-functional part of the first secondary element includes a rod portion extending in a longitudinal direction of the blade and housed in a first slot of the non-functional part of the main member, the mould including a first internal boss clamping said rod portion at the bottom of the first slot.

The invention discloses a forming mold including a stationary half and a moving half matched with the fixed one. The stationary half including a stationary plate, a stationary base fixed on the stationary plate, and a slider and a movable traverse bar which are disposed on the stationary base. The slider and the movable traverse bar are movable on the stationary base in a vertical direction. The moving half is movable relative to the fixed one in a horizontal direction. A space for in-mold forming is created between the two mold modules. By moving the slider and the movable traverse bar in the vertical direction, the forming mold can adapt to different workpieces. The flexibility of the forming mold can be increased, and the cost can be saved by way of not having to change to another sized of forming mold.

The invention discloses a forming mold including a stationary half and a moving half matched with the fixed one. The stationary half including a stationary plate, a stationary base fixed on the stationary plate, and a slider and a movable traverse bar which are disposed on the stationary base. The slider and the movable traverse bar are movable on the stationary base in a vertical direction. The moving half is movable relative to the fixed one in a horizontal direction. A space for in-mold forming is created between the two mold modules. By moving the slider and the movable traverse bar in the vertical direction, the forming mold can adapt to different workpieces. The flexibility of the forming mold can be increased, and the cost can be saved by way of not having to change to another sized of forming mold.