Abstract:
A joining method for joining together a first member (1) in which fiber material is mixed into a first resin, and a second member (2) that includes at least a second resin, includes abutting the first member (1) and the second member (2) together, and softening or melting the first resin of the first member (1) and the second resin of the second member (2) that are adjacent to abutting surfaces of the first member (1a) and the second member (2b); and stirring a joint forming portion (3) formed by the softened or melted first resin of the first member (1) and the softened or melted second resin of the second member (2), and the fiber material included in the softened or melted first resin of the first member (1), in a direction inclined with respect to the abutting surfaces (1a, 2b), and hardening the joint forming portion (3, 4).
Abstract:
A container is formed to include an interior region and a mouth opening into the interior region. The container includes a floor and a side wall coupled to the floor to define the interior region between the floor and the side wall.
Abstract:
A wide sheet of highly oriented ultra high molecular weight polyethylene comprising a plurality of strips of highly oriented ultra high molecular weight polyethylene partially overlapped or abutted longitudinally to define joints between adjoining strips wherein the thickness of the joint is less than about 80% of the thickness of the sum of the thicknesses of the adjoining strips that make up the joint. A continuous method for the production of such materials comprising subjecting longitudinally overlapping or abutted strips of these materials to temperatures below the melting point of the UHMWPE and pressures over 300 pli is also disclosed.
Abstract:
The invention relates to a device and to a method for gluing together parts to be joined, especially for use in the field of ultrasonics. The inventive device consists of first drive means (5) for moving a first part to be joined (3) towards a second part to be joined (4) in order to press the surfaces of the parts (3, 4) to be joined against one another. According to the invention, the device also comprises second drive means (6) for producing a cyclic relative movement of the two parts to be joined (3, 4) in parallel to the surfaces to be joined. The device effects a cyclic relative movement between the two surfaces to be bonded during the process of compression. The invention provides a means of ensuring a homogeneous distribution of the adhesive in the glueline and a high reproducibility of the result of the bonding process.
Abstract:
Verfahren zum Fügen von faserverstärkten, aus einem Kunststoffmaterial gebildeten Fügepartner (10, 20) an ihren Verbindungsflächen (11, 21) mittels eines Ultraschallschweißverfahrens, wobei ein Konzentrator (1) und/oder wenigstens ein Einleger (2) im Bereich der Verbindungsflächen (11, 21) vor dem Anschmelzen zwischen die Verbindungsflächen (11, 21) aufgebracht wird und der Konzentrator (1) und/oder der Einleger (2) gemeinsam mit den Verbindungsflächen aufgeschmolzen wird, um mit diesen nach dem Aushärten eine formschlüssige Fügestelle (3) auszubilden.
Abstract:
A non-woven ballistic material that demonstrates exceptional ballistic properties which ballistic material is fabricated by the lamination or angular lamination of a plurality of wide sheets of UHMWPE comprising a plurality of strips of highly oriented ultra high molecular weight polyethylene partially overlapped or abutted longitudinally to define joints between adjoining strips wherein the thickness of the joint is less than about 80% of the thickness of the sum of the thicknesses of the adjoining strips that make up the joint.
Abstract:
Ein Faserverbund-Bauelement mit wenigstens aneinander angrenzenden ersten und zweiten Teilelementen (1, 2) mit jeweils einer Faserstruktur (3, 4) und die Faserstruktur (3, A) jeweils einbettenden verschiedenen Matrixsystemen, die aus einem flüssigen Zustand unterschiedlich aushärten, lässt sich mit einer erhöhten Verbindungsstabilität der beiden Teilelemente (1, 2) dadurch herstellen, dass zunächst das Matrixsystem des ersten Teilelements (1 ) verflüssigt wird und dabei unregelmäßig in den Bereich des angrenzenden zweiten Teilelements (2) eindringt, dass anschließend das Matrixsystem des zweiten Teilelements (2) verflüssigt wird und dass die Matrixsysteme ausgehärtet werden. Durch die Ausbildung der unregelmäßigen Grenzflächen kommt es zu einer Verzahnung bzw. Verhakung der Matrixsysteme zueinander, wodurch eine Grenzfläche (5) mit einer erhöhten Scherfestigkeit erzeugt wird. Alternativ wird das erste Teilelement unter Belassung eines zum Anschließen an das zweite Teilelement (105) vorgesehenen Übergangsbereiches (104) mit durch das Matrixsystem (103) unbenetzter Faserstruktur (102a) konsolidiert und anschließend das zweite Teilelement (105) nach einem Eindringen des Matrixsystems (106) des zweiten Teilelementes (105) in den Übergangsbereich (104) des ersten Teilelementes (101 ) konsolidiert.
Abstract:
A multilayer composite pipe structure is described. The multilayer composite pipe comprises a hollow inner conduit, a first layer of adhesive, a metallic intermediate layer, a second layer of adhesive, as well as, the outer thermoplastic layer, respectively. The hollow inner conduit is made from any rigid thermoplastic material. The outer thermoplastic layer is made from a rigid, amorphous thermoplastic polymer. This multilayer composite pipe is pressure bearing. In one embodiment, the multilayer composite pipe is solvent cementable; whereas in another embodiment, the multilayer composite pipe is heat fusible. In still yet another embodiment of the invention, the multilayer composite pipe is bendable. Furthermore, the multilayer composite pipe can be used in a fluid conduit system with fittings with an optional insert.
Abstract:
L'invention concerne une pièce (10) en matériau composite à renfort fibreux comportant une structure (11) formée d'un ensemble de fibres maintenues dans une résine thermodurcissable et un tissu d'arrachage (13) sur tout ou partie d'une surface extérieure (12) de ladite structure. La pièce présente un gradient de polymérisation au niveau de l'interface (15) entre la structure et le tissu d'arrachage. L'invention concerne également des procédés de réalisation d'une telle pièce. L'invention concerne également des procédés d'assemblage par collage de telles pièces.
Abstract:
Methods and apparatuses for bonding polymeric parts are disclosed. Specifically, in one embodiment, the polymeric parts are bonded by plastically deforming them against each other while they are below the glass transition temperatures. A method includes: placing a first polymeric part in contact with a second polymeric part; and plastically deforming the first polymeric part and the second polymeric part against each other to bond the first polymeric part to the second polymeric part. Additionally, during the plastic deformation, a temperature of the first polymeric part is less than a glass transition temperature of the first polymeric part and a temperature of the second polymeric part is less than a glass transition temperature of the second polymeric part.