A heat-sealing apparatus for forming a composite heat seal structure, includes a belt conveying, heating and press bonding portion configured to convey and heat a heat seal material to form a band-shaped peelable seal, and a die roll press bonding portion configured to add a linear peelable seal to the band-shaped peelable seal in a longitudinal direction of the band-shaped peelable seal for forming the composite heat seal structure.

A heat-sealing apparatus for forming a composite heat seal structure, includes a belt conveying, heating and press bonding portion configured to convey and heat a heat seal material to form a band-shaped peelable seal, and a die roll press bonding portion configured to add a linear peelable seal to the band-shaped peelable seal in a longitudinal direction of the band-shaped peelable seal for forming the composite heat seal structure.

A method for manufacturing netted dots on a light guide plate is disclosed, including: engraving, on a surface of a metal plate with a preset roughness, a female mould or a male mould corresponding to a shape of the netted dots on the light guide plate; coating the metal plate onto a surface of a roller; heating the roller so that a temperature of the metal plate rises to a preset temperature; adjusting a distance of a center of the roller in relation to a light guide plate feeding passage so that the metal plate applies a preset pressure onto the light guide plate to be machined; and making the light guide plate to be machined pass through the light guide plate feeding passage, wherein the metal plate transfer-prints a shape of netted dots of the female mould or the male mould onto the light guide plate to be machined at a preset pressure and a preset temperature to form the netted dots on the light guide plate. A device for manufacturing netted dots on a light guide plate is also disclosed.

An extruder has a valve assembly configured to move pins to open and close the nozzles in a multi-nozzle extruder head independently. The pins of the valve assembly that are driven by actuators into and out of engagement with nozzles in the extruder head are positioned within sleeves that extend between the valve assembly and the extruder head. A gap is provided between the extruder head and the end of the sleeves proximate the extruder head to enable thermoplastic material leaking from the extruder that contacts the pins to remain in a melted or plastic state so the thermoplastic material does not interfere with the movement of the pins.

The invention relates to a welding tool and a method for pulse welding films of plastic for medical packs formed as bags. The invention generally provides for the film material that has been plastified during welding, and is consequently free-flowing, to be specifically displaced by increasing the sealing surface area. The displaced film material can for instance compensate for dimensional and form tolerances. At the same time, however, the strength of the welded seam region, which adjoins the interior space of the bag, is not reduced.

The invention relates to a welding tool and a method for pulse welding films of plastic for medical packs formed as bags. The invention generally provides for the film material that has been plastified during welding, and is consequently free-flowing, to be specifically displaced by increasing the sealing surface area. The displaced film material can for instance compensate for dimensional and form tolerances. At the same time, however, the strength of the welded seam region, which adjoins the interior space of the bag, is not reduced.

In accordance with an example embodiment, there is disclosed herein a strip of self-fusing silicon for providing a wrap. The strip has a top surface and a bottom surface. The top surface comprises sides and textured surfaces. Another embodiment includes a method comprised of molding self-fusing silicone. Another embodiment includes a strip of self-fusing silicone that includes a top side comprised of a textured surface which is prepared by a process comprising the steps of molding the self-fusing silicone and cutting the self-fusing silicone into at least one strip of self-fusing silicone.

Disclosed is the invention having an object to prevent vent spew from being cut and clogged in vent holes of an aluminum mold in vulcanization molding of a tire containing an inorganic compounding agent. The present invention relates to a mold for vulcanizing and molding a tire containing an inorganic compounding agent, in which the mold is made of aluminum, and an embedded vent sleeve is made of stainless or metal containing 15% by mass or more of chromium.

A metal-resin joining device joins a thermoplastic resin plate (12) to a metal plate (13) by melting the resin plate (12) in contact with the metal plate (13) through heating an exposed face of the metal plate (13) by one-sided resistive heating. The metal-resin joining device has a center electrode (24a) that is brought in contact with the metal plate (13) and a peripheral electrode (24b) that is brought in contact with the metal plate (13) to annularly surround the center electrode (24a) and to which a current flows from the center electrode (24a) via the metal plate (13), wherein the peripheral electrode (24b) is made of a metal material having a higher electrical resistance than the center electrode (24a).

A metal-resin joining device joins a thermoplastic resin plate (12) to a metal plate (13) by melting the resin plate (12) in contact with the metal plate (13) through heating an exposed face of the metal plate (13) by one-sided resistive heating. The metal-resin joining device has a center electrode (24a) that is brought in contact with the metal plate (13) and a peripheral electrode (24b) that is brought in contact with the metal plate (13) to annularly surround the center electrode (24a) and to which a current flows from the center electrode (24a) via the metal plate (13), wherein the peripheral electrode (24b) is made of a metal material having a higher electrical resistance than the center electrode (24a).