摘要:
A screw has an outer diameter in a range of 0.3 mm to 1.4 mm. The screw includes resin and carbon fiber which is dispersed in the resin and has a fiber diameter in a range of 0.01 μm to 0.20 μm.
摘要:
Provided in some embodiments is a method that includes coupling portions of one or more members using at least one impact driven fastener. At least one impact driven fastener includes at least one penetrating portion formed of plastic, and at least one head portion having a heat deformation temperature less than about 250° F. Plastic of the penetrating portion provides the penetrating portion with a flexural strength greater than about 9500 psi. The method also includes applying heat to at least partially deform the head portion of at least one fastener.
摘要:
A hybrid clinch-type standoff consists of two component parts, a metal core base and a overmolded plastic barrel. The base has a through-bore and a displacer flange at the bottom. A first undercut is located immediately above the flange and extends upwardly along an outside surface of the base for providing clinch attachment of the base to a substrate. A frustoconical ramp convergent in the upward direction lies along the outer surface of the base is and is located directly above the first undercut. An axially extending segmented ring with circumferential teeth is located at the top of the base. The overmolded plastic tubular barrel composed of plastic fills the second undercut and surrounds the segmented ring. The barrel has an inner portion including a threaded inner wall which extends downardly inside the through-bore to a point flush with the bottom of the flange.
摘要:
A threaded element of plastic material for a joining assembly has a uniquely formed thread profile of a small profile angle between 30° and 50° and a rounded crest of a relatively large radius of curvature. The gap between the revolutions of the thread is of a volume which exceeds that of the thread. In order to provide for a specific cutting geometry of the thread profile the threaded element comprises a plurality of angular segments which are radially offset with respect to each other such that adjacent angular segments provide cutting edges. Furthermore, a tool and a method for making such a joining assembly are disclosed.
摘要:
An expansion anchor comprising a tubular body, which extends along a longitudinal axis and is structured so as to have a head at one end, adapted to be engaged inside a hole obtained in a wall; the head comprising a deformable body made of a first plastic material having a predetermined mechanical rigidity, and at least one longitudinal rigid insert, which is firmly integrated in the deformable body and is made of a second plastic material having a higher mechanical rigidity than the mechanical rigidity of the plastic material of the deformable body itself.
摘要:
A fixing element, is designed on a fixing ring (2) for a sensor head (1) measuring speed of rotation or angle of rotation of a wheel in a motor vehicle. The sensor head (1) has a housing (11) made of plastic, and at least one housing foot (5) fixed to the fixing ring (2) by the fixing element. The fixing ring (2) serves for fixing the sensor head (1) to a further component, such as a wheel bearing. The fixing element is configured as a T-shaped, twistable lug (7) with a retaining piece (10). The lug extends through a continuous, mainly slot-shaped or long-hole-shaped cutout (6) of the housing foot (5).
摘要:
A fixing element, is designed on a fixing ring (2) for a sensor head (1) measuring speed of rotation or angle of rotation of a wheel in a motor vehicle. The sensor head (1) has a housing (11) made of plastic, and at least one housing foot (5) fixed to the fixing ring (2) by the fixing element. The fixing ring (2) serves for fixing the sensor head (1) to a further component, such as a wheel bearing. The fixing element is configured as a T-shaped, twistable lug (7) with a retaining piece (10). The lug extends through a continuous, mainly slot-shaped or long-hole-shaped cutout (6) of the housing foot (5).
摘要:
A molded product includes a receiving member in a body. A coupling component such as a female screw component is embedded in the receiving member. A connecting piece is formed continuous to the body and the receiving member based on integral molding. The connecting piece extends to the receiving member from the body inside a bore formed in the body. The connecting piece may form a single flat plate in the molded product, so that a general cutting device can be utilized to cut through the connecting piece in a facilitated manner. The receiving member can be removed from the body without any difficulty. The receiving member can be separated from the body.
摘要:
A method for joining bodies by melting down a joining element. The joining element acts on a surface of one of the bodies and penetrates the surface as a result of a directed force. Once in a penetrated condition, a mechanical excitation is generated such that during further penetration of the joining element into the one body, the advance is maintained through the directed force and the melting down is maintained through the mechanical excitation. Molten or melted material is hydraulically displaced into the bodies.
摘要:
A joining pin (3.2) with which two parts (1 and 2) made from a porous material, particularly wood or a wood-like material, are to be joined together, is anchored in the porous material at predetermined anchoring points (31, 33). For this purpose, a bore (4.2) with a closed inner end (41) is made in the parts (1 and 2). The shape of this bore (4.2) is so matched to the joining pin (3.2) that it can be introduced substantially without force expenditure into the bore and is positionable in a first position. At least one predetermined anchoring point (31, 33) between the joining pin (3.2) and the wall of the bore (4.2) is formed when pressure is built up by pressing the joining pin (3.2) with a pressing force (F) more deeply into the bore to a second position. Energy is supplied in a planned manner to the joining pin (3.2) so that at the predetermined anchoring points (31, 33) the thermoplastic material of the joining pin (3.2) is plasticized. The locally plasticized plastic material is pressed by the local pressure into the porous material of the parts and forms local, macroscopic anchors (10, 20). The joining pin (3.2) is, e.g., made entirely from a thermoplastic material and the energy for plasticizing is supplied thereto by ultrasonic vibration.