Abstract: Disclosed is a method for manufacturing a high-strength composite sheet, in which a peroxide-containing polymer film is used to allow uniform molecular weight distribution and improved embeddability. The method includes: attaching a peroxide-containing polymer film to one or both sides of a reinforcement material; pressing the peroxide-containing polymer film using a heating press such that the peroxide-containing polymer film is embedded into the reinforcement material, to thereby form a composite film; and cooling the pressed composite film using a cooling press.

Abstract: Disclosed is a battery pack case assembly for an electric or hybrid vehicle and a method for manufacturing the same. The battery pack case assembly includes a case body and a cover. The case body receives a battery pack, and the cover is coupled to the case body. The case body is formed of a plastic composite in which a long fiber or a blend of a long fiber and a continuous fiber is used as a reinforcing fiber in a plastic matrix. A separate reinforced member is bonded to both side bracket parts for coupling to a vehicle body, and is formed of a plastic composite in which a long fiber, a continuous, or a blend of a long fiber and a continuous fiber is used as the reinforcing fiber in the plastic matrix.

Abstract: Provided is a method of preparing thermoplastics-continuous fiber hybrid composite, which is easily woven and has excellent uniformity and impregnation at the time of hot melt impregnation after the weaving, including: a) widely and uniformly stretching a bundle of glass fibers; b) heating the stretched glass fibers; c) preparing a thermoplastics-continuous fiber bonding material by binding the heated glass fiber with thermoplastics; d) preparing a multi-layered thermoplastics-continuous fiber bonding material by folding the bonding material in a shape of zigzag; and e) pressing the multi-layered thermoplastics-continuous fiber bonding material.

Abstract: The present invention relates to an apparatus for manufacturing a thermoplastic/filament hybrid composite, and more particularly, to a high frequency induction heating double steel belt press apparatus which uses an induction heating unit and double steel belts to allow rapid heating through accurate and uniform temperature control.

Abstract: A multi-glass fiber bonded high-strength plastic back beam for a vehicle bumper, which may be made of glass fiber and thermoplastic resin, may include a first fiber resin layer in which long fiber or short fiber may be bonded with thermoplastic resin, and a second fiber resin layer in which continuous fiber may be bonded with thermoplastic resin, wherein, when the first fiber resin layer may be independently attached onto the second fiber resin layer by heating, the long fiber or short fiber of the first fiber resin layer may be configured not to permeate between the continuous fibers of the second fiber resin layer.

Abstract: Provided is a method of preparing thermoplastics-continuous fiber hybrid composite, which is easily woven and has excellent uniformity and impregnation at the time of hot melt impregnation after the weaving, including: a) widely and uniformly stretching a bundle of glass fibers; b) heating the stretched glass fibers; c) preparing a thermoplastics-continuous fiber bonding material by binding the heated glass fiber with thermoplastics; d) preparing a multi-layered thermoplastics-continuous fiber bonding material by folding the bonding material in a shape of zigzag; and e) pressing the multi-layered thermoplastics-continuous fiber bonding material.

Abstract: The present invention discloses an extruder capable of adjusting in real time a width of a sheet-shaped extruded object discharging from a T-die. The extruder according to the present invention comprises an extruding unit in which raw material is mixed and extruded; a T-die forming an extruded object supplied from the extruding unit into a sheet shaped extruded object; and a first width-adjusting means provided at one side of a front portion of the T-die to adjust a width of the sheet-shaped extruded object discharged from the T-die in real time. The extruder according to the present invention can further comprise a second width-adjusting means for the extruded object. The second width-adjusting means comprise the members which are the same as those constituting the first width-adjusting means, and is disposed at the other side of a front portion of the T-die and symmetrical to the first width-adjusting means.