SU884911A1

SU884911A1 - Apparatus for producng pressure at diffusion welding

Info

Publication number: SU884911A1
Application number: SU802904127A
Authority: SU
Inventors: Валентин Матвеевич Богомольный; Эдуард Сергеевич Каракозов; Михаил Ушерович Ушицкий; Альберт Викентьевич Ширяев
Original assignee: Московский вечерний металлургический институт; Предприятие П/Я В-8624
Priority date: 1980-04-02
Filing date: 1980-04-02
Publication date: 1981-11-30

Description

1one

Изобретение относитс к диффузтн- онной сварке, в частности к устройствам дл создани давлени за счет разности термического расширени оснастки.The invention relates to diffusion welding, in particular to devices for creating pressure due to the difference in thermal expansion of the tooling.

Известно устройство дл создани давлени при диффузионной сварке, содержащее нарзжное кольцо и внутренний элемент, передающий давление, при этом давление на соедин емые детали создают за счет разности коэффициентов термического расширени материалов деталей оснастки lJ.A device for creating pressure during diffusion welding is known, which contains an over-sized ring and an internal element that transmits pressure, and the pressure on the parts being joined is created by the difference in the coefficients of thermal expansion of the materials of the equipment parts lJ.

Недостатком устройства вл етс ограниченный диапазон сварочного давлени и возможность его использовани дл сварки только определенной номенклатуры материалов.The drawback of the device is the limited range of welding pressure and the possibility of its use for welding only a certain range of materials.

Наиболее близким к предлагаемому изобретению по технической сущности и достигаемому эффекту вл етс устройство дл создани давлени при диффузионной сварке за счет разности термических расширений деталёй оснастки, содержащее параллельно установленные плиты, соединенные ст жками, и элемент, передающий давление на свариваемые детали 2 J.The closest to the invention according to the technical essence and the achieved effect is a device for creating pressure during diffusion welding due to the difference of thermal expansions by a tooling part containing parallel-mounted plates connected by strapping and an element that transfers pressure to the parts being welded.

Недостатком устройства вл етс ограниченный диапазон сварочного давлени .The disadvantage of the device is the limited range of welding pressure.

Цель изобретени - расширение диапазона сварочного давлени .The purpose of the invention is to expand the range of welding pressure.

Поставленна цель достигаетс The goal is achieved

10 благодар тому, что устройство дл создани давлени при диффузионной сварке за счет разности термических расширений деталей оснастки, содержащее параллельно установленные плиts ты, соединенные ст жками, и элемент, передающий давление на свариваемые детали, последний выполнен в виде ромбической шарнирно-стержневой системы с углом между стержн ми, 10 due to the fact that the device for creating pressure during diffusion welding due to the difference in thermal expansions of the parts of the equipment, containing parallel-mounted plates connected by stitches, and an element that transfers pressure to the parts being welded, the latter is in the form of a rhombic hinged-rod system with an angle between rods,

Claims

30 equal to 150-170, and the large diagonal of the rhombus is aligned with the line of application of the resultant welding pressure. 3 In FIG. 1 shows the device, a general view; in fig. 2 and 3 - variants of hinge-rod systems. The device contains parallel installed plates f of equipment, connected by straps 2, a punch 3, transmitting pressure on the parts being welded, made in the form of rhombic. This hinge-rod system with an angle between the rods 4 and 5 is 150-170, with the large diagonal 6 of the rhombus aligned with the line of application of pressure, and less than 7 with the axis of symmetry of the punch 3 f of Fig. 1). The role of the punch 3 can be performed by the rods 4 and 5, which are made of a material with a large one; thermal expansion coefficient than the material of the ring 8 f of FIG. In this case, the punch 3 is not used. Also used are variants of the hinge-rod system, in which the welding pressure is created by rotating the screw 9 fixed in the ring 10 (Fig. 3. In this case, the welding pressure does not depend on the welding temperature. The device works as follows. The parts to be welded 11 are placed between one of the plates 1 and the hinge-rod system that converts the loading force P to the welding pressure N. During the welding process, the punch 3 is heated, and due to its expansion a loading force P occurs, which is caused by the hinge The ir-rod system of the topic according to the parallelogram rule transforms into a welding pressure N equal to ::, ..., and the pressure N will be greatest at an angle (C between rods 4 and 5 equal to 150-170, thus expanding The welding pressure range. The invention improves the quality of the welded joints by optimally controlling the welding pressure and expanding its range, and also reduces the metal intensity of the structure. Formula of the invention for creating pressure in diffusion welding due to the difference in thermal p the extensions of the equipment parts, containing parallel-mounted plates, connected by stitches, and an element that transmits pressure to the parts being welded, which are different from the fact that, in order to expand the welding pressure range, the pressure-transmitting element is designed as a rhombic hinged-rod system equal to 150-170®, with the large diagonal of the rhombus combined with the line of application of the resultant welding pressure. Sources of information taken into account during the examination 1.CUIA patent No. 3762032, cl. At 23 K 31/02, 02.10.73.

2. USSR author's certificate number 529029, cl. At 23 K 19/00, 09/25/76 (prototype).