SU302925A1

SU302925A1 - Method of ultrasound welding of wires

Info

Publication number: SU302925A1
Application number: SU681278772A
Authority: SU
Inventors: В.П. Неонет; А.А. Бут
Original assignee: Neonet V P; But A A
Priority date: 1968-10-31
Filing date: 1968-10-31
Publication date: 1981-09-15

Description

Изобретение относится к ультразвуковой сварке.The invention relates to ultrasonic welding.

Известен способ ультразвуковой сварки проводов, покрытых изоляцией, между, собой и другими деталями. Однако он не предотвращает обгорания проводов,A known method of ultrasonic welding of wires coated with insulation, between themselves and other details. However, it does not prevent burning of wires,

С целью предотвращения обгорания проводов по предлагаемому способу провода предварительно отгибают на угол не менее 45^σ к направлению распространения ультразвуковых колебаний.In order to prevent burning of wires according to the proposed method, the wires are pre-bent at an angle of at least 45 ^σ to the direction of propagation of ultrasonic vibrations.

Свариваемые провода или свариваемый провод и деталь располагают в зоне сварки ультразвуковой машины так, чтобы они находились между рабочим наконечником и опорой. В процессе ультразвуковой сварки между рабочим наконечником и верхним проводе»! образуется соединение, прочность которого достаточная для передачи ультразвуковых колебаний в верхний провод, расположенный в направ- « лении распространения этих колебаний.)The wires to be welded or the wire to be welded and the part are located in the welding zone of the ultrasonic machine so that they are between the working tip and the support. In the process of ultrasonic welding between the working tip and the upper wire! ” a compound is formed whose strength is sufficient to transmit ultrasonic vibrations to the upper wire located in the direction of propagation of these vibrations.)

Интенсивное выделение тепла, которое приводит к обгоранию изоляции проводов или перегоранию самих проводов, расположенных в направлении распространения ультразвуковых колебаний , происходит в зоне, расположенной на расстоянии, равном 1/4 длины волны этих колебаний, т.е, в плоскости максимальных напряжений. Это объясняется тем, что под действием ультразвуковых колебаний в узле скоростей значительно увеличивается внутреннее трение, что приводит к интенсивному выделению тепла в короткий промежуток времени. Чтобы избежать обгорания изоляции проводов или перегорания сами» проводов, провод отжимают от направления распространения ультразвуковых колебаний на угол не менее 45° .Intensive heat generation, which leads to burning out of the insulation of the wires or burning out of the wires themselves located in the direction of propagation of ultrasonic vibrations, occurs in a zone located at a distance equal to 1/4 of the wavelength of these vibrations, i.e., in the plane of maximum voltages. This is due to the fact that under the action of ultrasonic vibrations in the speed unit, the internal friction increases significantly, which leads to intensive heat generation in a short period of time. To avoid burning the insulation of the wires or burning out the wires themselves, the wire is squeezed from the direction of propagation of ultrasonic vibrations by an angle of at least 45 °.

Claims

This invention relates to ultrasound welding. The known method of ultrasonic welding of wires covered with insulation between. oneself and other details. Ydiako he does not prevent the burning of wires. In order to prevent wire burning by the proposed method, it is previously bent at an angle not less than the direction of propagation of ultrasonic vibrations. The welded wires or the wire to be welded and the part are placed in the welding zone of the ultrasonic machine so that they are between the working tip and the support. In the process of ultrasonic welding, a joint is formed between the working tip and the upper conductor, the strength of which is sufficient for transmitting ultrasonic vibrations to the upper wire located in the direction of propagation of these vibrations. Intense heat build-up, which leads to burn-out insulation of wires or burning of wires themselves, located in the direction of propagation of ultrasonic oscillations, occurs in the zone located at a distance equal to J / 4 plane of maximum stress. This is due to the fact that under the action of ultrasonic vibrations in the velocity node the internal friction increases significantly, which leads to an intense heat release in a short time. In order to avoid the burning of the insulation of wires or the burning of the wires themselves, the wire is squeezed from the direction of propagation of ultrasonic vibrations to an angle of at least 45 Formula of the invention By the fact that, in order to prevent the wires from burning, the latter are previously bent away 3029254. at an angle of at least 45 to the direction of propagation of the ultrasonic vibrations.