SU523804A1

SU523804A1 - The method of processing thermoplastic materials

Info

Publication number: SU523804A1
Application number: SU2094165A
Authority: SU
Inventors: Олег Константинович Келлер; Георгий Сергеевич Кратыш; Юрий Александрович Панов; Вадим Васильевич Катеров; Иосиф Давидович Фрейцис
Original assignee: Предприятие П/Я А-3602; Ленинградское Проектно-Конструкторское И Технологическое Бюро Легкой Промышленности
Priority date: 1975-01-06
Filing date: 1975-01-06
Publication date: 1976-08-05

Description

(54} СПОСОБ ОБРАБОТКИ ТЕРМОПЛАСТИЧНЫХ МАТЕРИАЛОВ(54} METHOD FOR PROCESSING THERMOPLASTIC MATERIALS

Изобретение относитс к ультразвуковойThis invention relates to ultrasound

технике и fvtoH eT найти применение при соединении или обработке термопластичных ма териалов ипи поверхностей материалов с t термопластичным покрытием при тиснении, оплавлении кромок и т.д.Technique and fvtoH eT to find application in joining or processing thermoplastic materials and surfaces of materials with t thermoplastic coating for embossing, melting edges, etc.

; Известны способы обработки термоплас Личных материалов путем подвода к обрабатываемым поверхност м преобразовател с концентратором, играющим роль инструмен- ;та. Обрабатываемый материал размещают jaa стерлше, пассивно резонирующем на концентратора 1. . I Недостатком указанного способа вл етЬ то, что при небольшом изменении пасторы концентратора всдедствие вли ни конечных размеров наконечника или нагрева конрентратоуа по вл етс расхождение резонансных чаЬтот концейтратора и стержн , что Ьриводит к резкому снижению эффективности процесса .; There are known methods for processing thermoplastic of Personal materials by supplying a converter with a hub playing the role of a tool to the treated surfaces. The material to be processed is placed on the jaa sterlet that resonates passively on the hub 1.. I The disadvantage of this method is that with a slight change in the hub pastors, the influence of the final dimensions of the tip or the heating of the concentrate is caused by the discrepancy between the resonant tip and rod, which leads to a sharp decrease in the efficiency of the process.

Наиболее близким к предлагаемому спосору по техн1-1ческой с,;/щности вл етс способ Ьбработки термоплас:ткчных материалов пуггем подвода к обаабаты.ааемым поаер:аюст м The closest to the proposed method in terms of technology, is the method for treating thermoplas: woven materials with a puggie of supply to both abaths and aaaaaer: ayust m

преобразовател с концектратором i . ;тру- мектом, (Который присоедии йтск к ко...;Цент ратору с ПОК4О111ЫО резьбовог; соедкигаш Щconverter with hub i. ; by a labor contract (which joins the company to the ...; to the center of the threading thread; soyedkigash u

Недостаток уквз когс ГСс-бе. закдюча™ ет-с в том, -гто правь ление поперечных размероэ и площади рабочей п.,;ъе;рхкостк инст-pyivdeHTS над иоперечтиамн размерами к пло ыадью рабочей поверхности коицемтратора ,.4--ет расстройку всей колэ..ателы-. системы и снижение эфа эктивностк ее -о ооты. Поэтому поверхтость соедине/1 кли обработк тар1М.опластичн1;. мат- рчачоэ огран.-гче- на.The disadvantage ukvz kohs gss-be. Zakdyucha ™ et -s in the fact that the rule of the transverse size and area of the working section,; e; rkhkostk inst-pyivdeHTS over ioperchtiamn size to the size of the working surface of the co-ordinator, .4 -there is a detuning of the entire range. system and reducing the effectiveness of its activities. Therefore, the surface of the connection / 1 Kli obrabotk11oplastic1 ;. matchacho ogran.-gchena.

оLlejifc . изсбр тен14Я - yBe TiH4eKVse ИОБОРХ- 1ости обработки рк одноггазовой установке и:1-:труме п-е as счет юзйу: дечи последне-го ;-;а собстзепньЕл -гастота . y.nap-W i импульсами меха-л--игС.(ой экерг1лл с ультразвуковой частого -; следовани .,oLlejifc. izbr ten14Ya - yBe TiH4eKVse iOborkh- 1nosti processing pk one-gas installation and: 1-: trume n as e account yuyu: dachi last; -and; y.nap-W i pulses of fur-l - igS. (oops, with ultrasonic frequent -; follow.,

Claims

Someone is tstkkgaeza tem, that s15 hlaa..na processing polluted po.i-. yv.,: adaaa; -1T instvftieHTs pos ous: y; .es ig :: i;: la ontak concentrator with and.istr / megtop, 1.rich: g: m spectrum 1frequencies BO36y: -via; o- ( THEIR nviay.n.bcoji .-- of the oxide-, torus is chosen such that the natural frequency of the instrument is inside this spectrum. The instrument is not attached to the hub, but only contacts with it: ON the surface, or at separate points, this reduces detuning the oscillatory system, allows the instrument to resonate at its own frequencies, increasing the surface of the treatment, .. The proposed method is carried out as follows: An appropriate tool is applied to the thermoplastic material or material with a thermoplastic coating. The instrument tips with some force press all or part of the surface of the concentrator end. Ultrasonic transducer Excites from the generator a continuous or pulsed ultrasonic frequency. tool, the latter is always excited by percussion Ilmpulses of mechanical energy at natural frequencies. The amplitude of the oscillations of the instrument depends on the pT of the spectral characteristic of the excitation signal, which is determined by the frequency to which it follows to the shape of the envelope of the excited pulses. The amplitude of vibrations of insteau, and the following parameters of the productivity of the process, is maximum if in the spectrum of the frequency of exciting pulses are found; natural frequency of the instrument. The value of the preliminary effort of the instrument concentrator to the instrument determines the conditions for its excitation. Fluctuations from the working surface of the tool are associated with the surface thermoplastic material, causing the latter to heat up in the contact area to a temperature in the flow of water. Due to the fact that the instrument is placed on the material being processed first, and then the concentrator is in contact with the instrument, the natural frequency of which is in the frequency spectrum of the exciting pulses, the detuning of the oscillatory system decreases, the amplitude of the instrument oscillations increases, and hence tool. Claim 1. Thermoplastic processing method. materials by supplying a transducer with a concentrator and a tool to the machined surfaces, which is aimed at increasing the surface of the treatment with a one-time installation of the tool by exciting it at its own frequencies, with a shock pulse of the i-mech : energy with an ultrasonic frequency following, first an instrument is placed on the surfaces to be machined, and then the concentrator is in contact with the instrument. .2. The method of group clause 1, which is based on the fact that the spectrum of the frequencies of the concentrator impulses is chosen so that the natural frequency of the instrument is inside this spectrum. YS1CHEHNIKI and. Information taken into account during the examination: 1.Avt. St. USSR № 185О43, cl. On 29 September 27, 1966

2. Volkov S. S, et al. Welding of plastics by ultrasound. M ,,. Chemistry., 1974, p., 15, 1 85 prototype.