摘要:
The invention refers to a method and a device for forming a weld joint at the connecting surfaces between two parts. At the connecting surfaces a heatable element is provided, during warm-up the two parts approach each other, and the heatable element is also moved or positioned depending on the movement or position of the parts.
摘要:
A process for the welding of two polyamide parts, both made of a polyamide composition comprising a polyamide and optionally additives, the polyamide of one part (part L) having a lower softening temperature than the polyamide of the other part (part H), and wherein the polyamide composition of part L comprises one or more viscosity increasing additives increasing the melt shear viscosity of the polyamide composition at least by 30% compared to melt shear viscosity of the polyamide (measured according to ISO 11443 (A1) standard at a shear rate of 100 s−1 in a capillary rheometer with I/d =30 mm/1 mm). A good weld strength is obtained and parts with different properties can be combined. Polyamide welded objects such as corrugated tubes, bellows, containers, fuel inlet systems, air inlet manifolds and airducts, may be obtained.
摘要:
Composite articles and a method for making the same, wherein the articles include at least two bodies that are attached at an interface that includes a fringed microprotrusion surface structure. The method generally includes the steps of providing a first body that includes a fringed microprotrusion surface structure on one or more surfaces; and attaching to the first body, a second body for defining the interface that includes at least a portion of the fringed microprotrusion surface structure.
摘要:
The present invention provides a method for joining liquid-crystalline polyester resin composition parts, characterized in that the melting point of the liquid crystalline polyester resin measured by differential scanning calorimeter is 190-250° C. and that the parts are jointed by means of welding. By using the method of the present invention, jointed articles with sufficient joint strength are provided with accuracy.
摘要:
A laser welding material and laser welding method which can satisfactorily weld resin members of different resin materials that have no or little adhesive property is provided and includes a set of resin materials constituting a first resin member, a second resin member and a third resin member in which the first resin member and the second resin member are different materials and the first resin member does not absorb laser light and which is used for laser-welding the three members by overlapping the third resin member with the first and second resin members and irradiating laser light to the three members from the first resin member side, and a layer welding method.
摘要:
An air bag assembly, for use with a vehicle having a panel with a breakaway door, includes an air bag housing having first and second housing portions. Each housing portion has a connection flange, and the connection flanges are positioned adjacent each other and secured together. An air bag and inflator are disposed within the air bag housing, and the inflator is operable to inflate the air bag. The assembly further includes a tether having a first end adapted to be secured to the breakaway door of the panel and a second end that is secured between the connection flanges.
摘要:
The invention provides an airbag apparatus for an automobile in which a frame and reinforcement members can be vibration-welded to an instrument panel with uniform strength and the product can be prevented from being thermally deformed or discolored by heat caused by the vibration welding. First weld ribs projectedly provided on joining surfaces of an joint flange of a frame are extended long in a vibration direction of vibration welding, second weld ribs projectedly provided on joining surfaces of reinforcements of reinforcement members are extended long in the vibration direction of the vibration welding, and in particular, the lengths of the first weld ribs and the second weld ribs extending in the vibration direction are set to be three times or more as long as an amplitude of the vibration welding. Passages for flowing a cooling fluid along the first weld ribs are provided on the joining surfaces of the joint flange, and furthermore, passages for flowing the cooling fluid along the second weld ribs are provided on the joining surfaces of the reinforcements.
摘要:
A vibration welding element for thermoplastic members, and related joint structures, assemblies, and methods, are disclosed. A vibration welding element that is composed at least in part of a thermoplastic material includes at least one welding surface for forming a vibratory welded bond with at least one thermoplastic member. The element also includes a component holder that is physically coupled to the welding surface for enabling the element to hold a further component. The component holder may also be held in a fixture of a vibratory head during a vibratory welding process by which a vibratory welded bond is formed.
摘要:
A lamp body for a vehicle lighting unit includes a PC/PTT alloy material in which 80 to 50% by weight of a polycarbonate resin (hereinafter referred to as a PC) and 20 to 50% by weight of a polytrimethylene terephthalate resin (hereinafter referred to as a PTT) are contained as principal components and 5 to 10% by weight of a filler is added with respect to the total weight of the PC and the PTT. The lamp body constituted by the PC/PTT alloy material can be thermally welded to a lens formed of the PC, and has a heat resistance, a chemical resistance and a bending rigidity which are almost identical to those of a lamp body formed of a polypropylene. Therefore, the lens and the lamp body can be bonded and integrated by a thermal welding method.
摘要:
An airbag cover includes a panel member composed of a substrate, a foam layer, and a surface layer. A fracture groove is formed on the reverse surface of the panel member so as to define in a fracture-opening section thereof two fracture-opening subsections openable in the manner of a casement. The fracture groove has a depth corresponding to the thickness of the substrate or a depth slightly greater than the thickness of the substrate. This configuration prevents generation of sink marks or depressions on the surface of the cover. The fracture groove is composed of a straight center fracture groove section, two V-shaped branch fracture groove sections extending from the opposite ends of the center fracture groove section, and side fracture groove sections extending from distal ends of the V-shaped branch fracture groove sections in opposite directions perpendicularly to the center fracture groove section.