Patent classifications
B29C33/02
METHOD FOR MANUFACTURING A PART MADE OF COMPOSITE MATERIAL USING A THIN-WALLED MOLD
A thin-walled mold and a method for manufacturing a part made of composite material, the material including reinforcing fibers and a polymer matrix, the method including the following consecutive steps: installing, in a matrix mounted on a press, a closed thin-walled mold in which reinforcing fibers have been arranged; closing the press; injecting a polymer or a reactive composition including at least one prepolymer, at least one monomer or a mixture thereof, in the molten state, into the closed thin-walled mold; keeping the press closed during all or part of the polymerisation of the polymer matrix when a reactive composition is used; opening the press and removing the thin-walled mold from the press, while maintaining a residual pressure of between 0.7 and 10 bar, preferably between 0.7 and 5 bar, inside the mold; and cooling the mold under said residual pressure.
PNEUMATIC TIRE AND TIRE MOLDING MOLD
A pneumatic tire includes sipes disposed in a land portion formed in a tread portion, and pin holes for stud pins disposed in the land portion. The sipes are disposed at positions where a distance Ds from the pin hole and a diameter Dp of the pin hole satisfy (Ds/Dp)≥4.0. A sipe in which the distance Ds from the pin hole and the diameter Dp of the pin hole satisfy (Ds/Dp)≤5.0 is defined as a pin hole neighboring sipe. A sipe of which the distance Ds from the pin hole is the smallest, among the sipes in which the distance Ds from the pin hole and the diameter Dp of the pin hole satisfy (Ds/Dp)>5.0, is defined as a normal sipe. The pin hole neighboring sipe is formed in a high rigidity shape having higher rigidity than the normal sipe.
TOOL FOR CURING A COMPOSITE COMPONENT
The present invention provides a tool 1 for curing a composite component, the tool comprising a lay-up surface 8 for laying-up layers of an uncured composite component, a cover assembly 9 for moving in relation to the lay-up surface to cover a layed-up uncured composite component on the lay-up surface, the cover assembly comprising a sealable cover for sealing around the uncured composite component on the lay-up surface to form a sealed zone, and a vacuum port 25 for providing a vacuum to the sealed zone, wherein the tool further comprises at least one heating element 15, 53 within the sealed zone for heating the uncured composite component. The invention also provides a method of manufacturing a composite component and a composite component. The composite component may form at least part of a piece of aircraft furniture, such as an aircraft seat shell.
TIRE AND TIRE MOLD
The projection portion includes a straight portion extended linearly in a predetermined direction, a first inclined portion inclined to spread toward an outer side in the predetermined direction from one end of the straight portion, and a second inclined portion inclined to spread toward an outer side in the predetermined direction from another end of the straight portion. A period defined by a length of the projection portion in the predetermined direction is 0.8 times to 2.0 times as large as a sipe depth defined by a length of the sipe between the wheel tread of a block and a bottom of the sipe.
TIRE AND TIRE MOLD
The projection portion includes a straight portion extended linearly in a predetermined direction, a first inclined portion inclined to spread toward an outer side in the predetermined direction from one end of the straight portion, and a second inclined portion inclined to spread toward an outer side in the predetermined direction from another end of the straight portion. A period defined by a length of the projection portion in the predetermined direction is 0.8 times to 2.0 times as large as a sipe depth defined by a length of the sipe between the wheel tread of a block and a bottom of the sipe.
Vehicle interior material manufacturing apparatus and method for manufacturing vehicle interior material
A vehicle interior material manufacturing apparatus includes a preheater for preheating a raw fabric, a mover for moving the preheated raw fabric and including a stretching jig movable back and forth, a first mold into which the preheated raw fabric is inserted by the mover, a second mold having an at least partially corresponding shape to the first mold, and an injection resin introduced into the second mold, wherein the first mold includes: a base member on which an embossed pattern to be transferred to the preheated raw fabric is formed, a vacuum hole through which the preheated raw fabric is adsorbed onto the base member, and a spring core protruding from the base member and contacting at least a portion of the preheated raw fabric inserted into the first mold.
Vehicle interior material manufacturing apparatus and method for manufacturing vehicle interior material
A vehicle interior material manufacturing apparatus includes a preheater for preheating a raw fabric, a mover for moving the preheated raw fabric and including a stretching jig movable back and forth, a first mold into which the preheated raw fabric is inserted by the mover, a second mold having an at least partially corresponding shape to the first mold, and an injection resin introduced into the second mold, wherein the first mold includes: a base member on which an embossed pattern to be transferred to the preheated raw fabric is formed, a vacuum hole through which the preheated raw fabric is adsorbed onto the base member, and a spring core protruding from the base member and contacting at least a portion of the preheated raw fabric inserted into the first mold.
Mould assembly for forming a spliced joint in a handrail, or other elongate article
A core mould element can be mounted between first and second mould parts. The first and second mould parts and the core mould element can be mounted between first and second thermal platens. The thermal platens can have generally planar faces for mounting in a press, for maintaining a desired pressure within the mould assembly. The thermal platens can provide for heating and cooling the mould assembly, and each can include a central portion and end portions, with thermal breaks between the central portion and the end portions. Bores can extend through the central and end portions, for receiving heating elements and pipes for cooling fluid. The end portions can include bores for a cooling fluid for cooling the end portions.
Finned mold block
Mold blocks of a pipe molding corrugator are provided with enhanced cooling capability due to the provision of cooling fins on the side portions of each mold block. Air can be forced between the fins and some exhaustion of the air can occur at the base of the fins adjacent the mold block cavity. With this arrangement, enhanced cooling of mold blocks is possible.
Finned mold block
Mold blocks of a pipe molding corrugator are provided with enhanced cooling capability due to the provision of cooling fins on the side portions of each mold block. Air can be forced between the fins and some exhaustion of the air can occur at the base of the fins adjacent the mold block cavity. With this arrangement, enhanced cooling of mold blocks is possible.