A strapping apparatus for strapping articles with a strapping band having a base plate provided for arranging on an article, a tensioning device with which a band tension can be applied to the strapping band, and a sealing device for permanently connecting two band layers to each other.

A strapping apparatus for strapping articles with a strapping band having a base plate provided for arranging on an article, a tensioning device with which a band tension can be applied to the strapping band, and a sealing device for permanently connecting two band layers to each other.

The invention relates to an intermediate material (132) for the manufacture of composite components, having a prepreg layer (116) and an interleaving layer (120) made up of at least two sections of thermally joined thermoplastic interleaving material sections (120a, 120b). The invention also relates to a method of manufacture of such an intermediate material.

An apparatus for welding composite thermoplastic materials comprises a welding member configured to receive the composite thermoplastic materials there at; and a controller for controlling a temperature by which composite thermoplastic materials received at the welding member are heated, the controller being configured to provide a plurality of heating cycles during which the composite thermoplastic materials are welded. There is also a method for welding composite thermoplastic materials, the method comprises receiving the composite thermoplastic materials at a welding zone; and applying a plurality of heating cycles to the composite thermoplastic materials at the welding zone.

A laminate is provided comprising at least one polysulfone and/or polyethersulfone porous membrane heat bonded to a polyvinylidene fluoride substrate.

A laminate is provided comprising at least one polysulfone and/or polyethersulfone porous membrane heat bonded to a polyvinylidene fluoride substrate.

In order, in the case of a strapping apparatus for strapping articles with a strapping band, having a base plate which is provided for arranging on an article, having a tensioning device with which a band tension can be applied to the strapping band, the tensioning device being provided for this purpose with an actuable tensioning tool which can be brought into and out of contact with the band, having a sealing device with which, by contact with the band, two band layers can be permanently connected to each other by forming a seal between the two band layers, being provided with a clamping device which has at least one clamp with two interacting clamping elements for clamping the band between the clamping elements, and being provided with at least one actuating element with which a magnitude of a tensioning force which can be applied to the strapping band or a magnitude which is dependent on the tensioning force can be set, to improve the strength of friction-welded band strapping seals produced by the strapping apparatus, it is proposed that a cooling time period for the seal, during which the strapping apparatus does not release the strapping band after the end of a welding time, is variable depending on the variably adjustable tensioning force or a magnitude which is dependent thereon.

In order, in the case of a strapping apparatus for strapping articles with a strapping band, having a base plate (4) which is provided for arranging on an article, having a tensioning device (6) with which a band tension can be applied to the strapping band, the tensioning device (6) being provided for this purpose with an actuable tensioning tool which can be brought into and out of contact with the band, having a sealing device with which, by contact with the band, two band layers can be permanently connected to each other by forming a seal between the two band layers, being provided with a clamping device which has at least one clamp with two interacting clamping elements for clamping the band between the clamping elements, and being provided with at least one actuating element with which a magnitude of a tensioning force which can be applied to the strapping band or a magnitude which is dependent on the tensioning force can be set, to improve the strength of friction-welded band strapping seals produced by the strapping apparatus, it is proposed that a cooling time period for the seal, during which the strapping apparatus does not release the strapping band after the end of a welding time, is variable depending on the variably adjustable tensioning force or a magnitude which is dependent thereon.

A tube sealing positioning apparatus has a tube holder slidable on a vertical guide from a lower to an upper portion of a sealing chamber for positioning adjacent a heating apparatus and a clamping apparatus. The heating apparatus may have a nozzle to direct heated air on an open end of a plastic tube. The clamping apparatus may have two clamping devices slidably disposed to clamp the heated open end of the plastic tube to fuse the tube wall adjacent the open end. A control processor may be connected to control movement and dwell time of the tube holder, and to control heat application and clamp spacing and time. A sealed tube may be attached to a top cover to be positioned in a test container. A sealing disk may close the top cover and may direct fluid pressure into the tube and apply a vacuum to the test container.

A bonding method includes ultrasonically welding a protruding portion extending on a surface of a first substrate member to a surface of a second substrate member by applying ultrasonic vibration to the first substrate member. A protruding stopper portion for stopping welding is provided on the surface of the first substrate member formed with the protruding portion, or on the surface of the second substrate member to come in contact with the protruding portion in a pressed state, to be disposed around the protruding portion in the pressed state. The ultrasonically welding includes a first process for applying ultrasonic vibration at amplitude as a first value to the first substrate member, and a second process for applying ultrasonic vibration to the first substrate member at amplitude as a second value lower than the first value after the first process.