The invention refers to a light-transmissive plastic plate structure suitable for vehicle sunroof with curved surface and a method for fabricating the same. By using polymer material formulation, UV resistant coating formulation and precision coating technology, the wear resistance of polymer surface of plastic substrate can be improved to the same level as glass, and the original optical and physical properties after various environmental tests can also be maintained. The plastic substrate is first formed into a curved plastic plate through a hot pressing process, and then a connecting structure is formed and fixed on the plastic plate by an insert-molding injection process, in order to replace the traditional car sunroof mechanism which is assembled by glass plate bonded with metal connecting parts. The light-transmissive plastic plate structure with curved surface comprises a lightweight polymer sunroof and a lightweight plastic connecting structure fixed to the sunroof by insert-molding injection, which can reduce the weight of traditional glass sunroof, front and rear windshield, and side window glass assembly, and is particularly suitable for use in oil-electric hybrid vehicles and pure-electric vehicles that require lightweight specifications.

This disclosure relates to a method and apparatus of preparing a molded article, and more particularly to a method and apparatus of automated molding using male molds and thermoplastic sheets in which the thermoplastic sheets are systematically draped across the mold contour.

This disclosure relates to a method and apparatus of preparing a molded article, and more particularly to a method and apparatus of automated molding using male molds and thermoplastic sheets in which the thermoplastic sheets are systematically draped across the mold contour.

The present invention relates to a medical thread which has on one end thereof a stopper that has a polygonal cross-section, and which exhibits excellent end adhesive force and penetration resistance, and to a manufacturing method for same.

A battery case shaping apparatus and method shape a pouch-shaped battery case. The battery case shaping apparatus includes a conductive liquid and positive and negative electrodes each configured to generate electric discharge in the conductive liquid in order to prevent a laminate sheet for battery cases from being damaged by friction between a punch and a die and to allow the entirety of the laminate sheet to be elongated.

The invention relates to a method for producing a fibre composite moulded part. The method includes the steps of i) applying a gelatine-containing matrix material onto a fibre material, ii) deforming the fibre material provided with matrix material, and iii) curing the fibre material provided with matrix material.

The invention relates to a method for producing a fibre composite moulded part. The method includes the steps of i) applying a gelatine-containing matrix material onto a fibre material, ii) deforming the fibre material provided with matrix material, and iii) curing the fibre material provided with matrix material.

Provided is a pouch type battery case. The pouch type battery case include a cup part configured to accommodate an electrode assembly, which is formed by stacking electrodes and separators, therein and a plurality of die edges configured to connect an outer wall of the cup part to a side extending from the outer wall. At least one die edge includes a first area formed to be rounded with a first curvature radius and a second area formed to be rounded with a second curvature radius less than the first curvature radius.

A battery case shaping apparatus includes a punch, a die, a holder, and an elastic separator. The punch is configured to press a laminate sheet into a shape of an electrode assembly receiving portion. The die has formed therein an accommodation portion having a size corresponding to the electrode assembly receiving portion. The holder is configured to fix the an outer periphery of the laminate sheet. The elastic separator is located under the punch in order to prevent direct contact between the punch and the laminate sheet. A battery case manufacturing process uses the battery case shaping apparatus to manufacture a battery case.

A punch pin hole inspection apparatus and method uses a punch and a die capable of checking defects or damage, specifically pin holes or microcracks, due to shaping immediately after finishing shaping a laminate sheet into a battery case using the punch.