Abstract: A sheet forming apparatus includes a first roll, a second roll configured to sandwich molten resin extruded from a die in cooperation with the first roll, a coupling member provided to be revolvable around a rotation center axis of the second roll, a third roll provided rotatably on the coupling member and configured to sandwich the resin conveyed along an outer periphery of the second roll in cooperation with the second roll, and a coupling member supporter configured to support the coupling member at an intermediate part of the coupling member so as to allow the coupling member to revolve.

Abstract: A sheet forming apparatus includes a first roll 3, a second roll 5 configured to sandwich molten resin extruded from a die in cooperation with the first roll 3, a coupling member 9 provided to be revolvable around a rotation center axis of the second roll 5, a third roll 7 provided rotatably on the coupling member 9 and configured to sandwich the resin conveyed along an outer periphery of the second roll 5 in cooperation with the second roll 5, and a coupling member supporter 13 configured to support the coupling member 9 at an intermediate part of the coupling member 9 so as to allow the coupling member 9 to revolve.

Abstract: A sheet/film molding apparatus includes: a main roll sandwiches and presses, with a touch roll, a resin molten sheet and conveys the sandwiched and pressed resin sheet; and a separating roll separates the resin sheet from an outer peripheral surface of the main roll and conveys the resin sheet. The separating roll has a rubber roll and a metal elastic external cylinder having the rubber roll housed therein and being eccentrically positioned to the rubber roll and thin and easily elastically deformed. Cooling water is supplied between the rubber roll of the separating roll and the metal elastic external cylinder. The resin sheet between the main roll and the metal elastic external cylinder is cooled by allowing the rubber roll to make pressure contact with an inner peripheral surface thereof. The separating roll separates the resin sheet from the outer peripheral surface of the main roll.

Abstract: A lubricant sheet for making a hole used for a printed circuit board, comprising an organic substance layer having a thickness of 0.02 to 3.0 mm and formed of a mixture (a) or a mixture (b) and a metal foil having a thickness of 0.05 to 0.5 mm, said organic substance layer being formed on one surface of said metal foil, said mixture (a) being a mixture containing polyether ester (I), a solid water-soluble lubricant (II) and polyethylene glycol (III) having a number average molecular weight of 200 to 600, and said mixture (b) being a mixture containing said polyether ester (I), said solid water-soluble lubricant (II) and a liquid water-soluble lubricant (IV), and a method of making a hole which uses the lubricant sheet.

Abstract: A lubricant sheet for making a hole used for a printed circuit board, comprising an organic substance layer having a thickness of 0.02 to 3.0 mm and formed of a mixture (a) or a mixture (b) and a metal foil having a thickness of 0.05 to 0.

Abstract: In a molding machine, the front end of a rotary screw is provided with at least one slot communicated with a metering section so as to make uniform the temperature of plasticized resin in a space in front of the rotary screw.