摘要:
Bei einem Nietverfahren und einer Nietvorrichtung zum Verbinden zweier Teile (36, 38) mittels eines Nietdoms (4) aus Kunststoff wird der Nietstempel (20) von seiner Rückseite her berührungslos mittels Wärmestrahlung oder durch Beaufschlagung mit Heißgas auf eine zum Plastifizieren des Nietdoms (4) geeignete Plastifizierungstemperatur erwärmt und der Nietdom (4) durch Kontakt mit dem erwärmten Nietstempel (22) plastifiziert.
摘要:
An exterior body panel assembly having a Class A painted surface, mold-in color or non-Class A surface, and process of infrared welding components of the assembly. Panels of the assembly are placed on a nesting structure and the inside half of the structures are brought together with the other for a fit check. Panels are separated and an infrared heating fixture then heats the various areas to be heated on the panels. The areas on the panels are heated depending on the thicknesses of the parts at each area and surface geometries to be welded. The parts are immediately clamped back together under pressure for joining and cooling of the joined surfaces in the clamped arrangement.
摘要:
An ultrasonic sealing method and device for a bag, in which pressurized gas spray outlets (47, 52) are provided at distal ends of a horn (31) and an anvil (32) so as to be used as gas blowing nozzles, the distal ends of the horn and the anvil are placed against a cutout (19) formed in a gas compartment (16) of the bag, a gas is blown into the gas compartment to inflate it, and then the horn and the anvil clamp films surrounding the cutout while the gas blowing is in progress, so that ultrasonic sealing is carried out by the horn to the films to trap the gas inside the gas compartment. A contact member (71) is provided directly under the horn. The contact member is pressed against inflated film (18) of the gas compartment, and in this state ultrasonic vibration energy is supplied to the horn.
摘要:
The present invention concerns a method to monitor the cooling process in a welded joint during the welding of pipes (1) of a weldable polymer material, where the welding process comprises that a muff (7) of a weldable polymer material is placed with overlap over the end of the pipe, and that an electrically conducting tape (9) is placed between the pipe and the muff, that the muff is held in place by welding equipment (19) that makes contact with the muff, and that the muff is welded to the pipe through an electrical current being supplied in order to heat the tape and the surrounding polymer material in order to form a welded joint, where a measurement process is carried out after the welding process has ended comprising that a current pulse Ip is supplied to the tape from an indicator unit (40), a resulting temperature-dependent parameter Sp in the tape is determined by the indicator unit, the value of Sp is stored in the indicator unit, that a further current pulse Ip is supplied to the tape from the indicator unit after a predetermined time interval, and that the parameter Sp in the tape is determined and the value of Sp is stored in the indicator unit, the indicator unit monitors and evaluates the value of the parameter Sp or the relative change in the value of the parameter Sp, the measurement process is repeated until Sp reaches a plateau value or the relative change in Sp reaches a predetermined level, a signal arrangement signals that the welding equipment can be removed from the area of the weld when the indicator unit (40) indicates that the cooling process has ended. The invention concerns also an arrangement for monitoring the cooling process during the welding of pipes of a weldable polymer material.
摘要:
A method for reliably attaching a liquid-repellent filter to an air vent of a resin molded article in which an electronic part or any other component is accommodated, and a thermally processing tip and a thermally welding tip used in the method as well as a molded article are provided. A thermally processing tip 22 is used to form a filter attachment surface 14, onto which a filter 18 is dropped, at the inlet or outlet of an air vent 16 formed in a thermoplastic resin molded article 13, and a filter fixing rib 15 is formed around the attachment surface 14. The porous filter 18 is then dropped onto the filter attachment surface 14, and a thermally welding tip 2 is used to melt the filter fixing rib 15 in such a way that the melted resin is caused to flow onto and cover a circumferential edge portion of the filter 18 and penetrate the body of the filter 18. Thereafter, the melted resin penetrating the filter 18 and the melted resin covering the circumferential edge portion of the filter 18 are so cooled as to solidify, whereby the filter 18 is fixed to the filter attachment surface 14.
摘要:
An ultrasonic sealing method and device for a bag, in which pressurized gas spray outlets (47, 52) are provided at distal ends of a horn (31) and an anvil (32) so as to be used as gas blowing nozzles, the distal ends of the horn and the anvil are placed against a cutout (19) formed in a gas compartment (16) of the bag, a gas is blown into the gas compartment to inflate it, and then the horn and the anvil clamp films surrounding the cutout while the gas blowing is in progress, so that ultrasonic sealing is carried out by the horn to the films to trap the gas inside the gas compartment. A contact member (71) is provided directly under the horn. The contact member is pressed against inflated film (18) of the gas compartment, and in this state ultrasonic vibration energy is supplied to the horn.
摘要:
The objective of the present invention is to provide a vehicle door trim bonding device capable of quickly bonding sub-trims. In order to achieve the objective, the present invention provides a vehicle door trim bonding device for coupling a first sub-trim in which a projection is formed and which is made of a thermoplastic resin material, and a second sub-trim in which a receiving hole for receiving the projection of the first sub-trim is formed and which is made of a thermoplastic resin material, the device comprising: a heat supply unit for melting a part of the protrusion with radiation heat; and a molding part for compression-molding the molten protrusion.
摘要:
A method is provided for connecting a fitting to a reinforced thermoplastic duct including inserting a first end of the fitting having a plurality of barbs into an end of the duct. A clamp is installed around the duct. The duct is heated to a temperature greater than a glass transition temperature of a thermal plastic material used to form the duct. The duct is restructured to include a plurality of protrusions positioned between the plurality of barbs of the fitting.
摘要:
The present invention concerns a method to monitor the cooling process in a welded joint during the welding of pipes (1) of a weldable polymer material, where the welding process comprises that a muff (7) of a weldable polymer material is placed with overlap over the end of the pipe, and that an electrically conducting tape (9) is placed between the pipe and the muff, that the muff is held in place by welding equipment (19) that makes contact with the muff, and that the muff is welded to the pipe through an electrical current being supplied in order to heat the tape and the surrounding polymer material in order to form a welded joint, where a measurement process is carried out after the welding process has ended comprising that a current pulse Ip is supplied to the tape from an indicator unit (40), a resulting temperature-dependent parameter Sp in the tape is determined by the indicator unit, the value of Sp is stored in the indicator unit, that a further current pulse Ip is supplied to the tape from the indicator unit after a predetermined time interval, and that the parameter Sp in the tape is determined and the value of Sp is stored in the indicator unit, the indicator unit monitors and evaluates the value of the parameter Sp or the relative change in the value of the parameter Sp, the measurement process is repeated until Sp reaches a plateau value or the relative change in Sp reaches a predetermined level, a signal arrangement signals that the welding equipment can be removed from the area of the weld when the indicator unit (40) indicates that the cooling process has ended. The invention concerns also an arrangement for monitoring the cooling process during the welding of pipes of a weldable polymer material.