SU1307497A1 - Method of manufatcuring commutator - Google Patents

Abstract

The invention relates to the field of precision instrument making, in particular, to methods for manufacturing collectors of precision current collectors used in devices and automatic control systems. The aim of the invention is to eliminate the contamination of the contact surfaces of the conductors with insulating material during operation. By connecting two metal tapes 1 and 2, a conductive layer is made. Tape 1 is made of a length corresponding to the length of the current leads 3 and the working surface of the collector with conductors 4. Tape 2 has a length corresponding to the length of the working surface of the collector. The workpiece is fixed on the metal. technological basis 5.. The materials of the tapes 1 and 2 are sensitive to various herders. The joints between themselves and the base are made by diffusion welding. Conductors 4 and tokopod-water 3 form printed wiring. The current leads and conductors are delimited with step 7. After cleaning the photoresist layer from the surfaces of the conductors 4, a softened dielectric layer is made by rolling from an inorganic material so that the conductors 4 are insulated from each other by a dielectric, and the CURRENT 3 by. are covered with dielectric by step 7, with the exception of the end portions, which are the collector leads. After removing 1 cytopic material from the contact surfaces of the conductors, annealing of the workpiece is performed. Then the technological base, lintels and lintels are removed, and the blank is folded along the gauge strip into the cylinder at the softening temperature of the insulation material. Hardening of the insulation material and its production in vacuum with simultaneous formation of the insulation between conductors by rolling rollers. 3 hp ff. 16 il. (L with o d; CD -vj Fy

Description

In addition, the P1e will be used for precision instrument making, and the names1; 0 for the methods of manufacturing KOJuicKTOpoB precision currents of the Germanic, g: names in the instruments in automatic control systems.

The purpose of the invention is to eliminate the contamination of the contact surface of the conductor with insulating material during operation.

FIG. and an optional blank for the OP.wire of a layer on a metallic technological basis; figure 2 - the process of rolling metal strips; on fng. Z - made on the mask blank; figure 4 - the formation on the workpiece conductors printed circuit; Figure 5 shows tocovaroves; figure 6 - conductors; Fig. 7 illustrates the application of an insulating material between conductors; Fig. 8 shows the application of an insulating material in the location of the current connectors; Figure 9 is the same in the location of the conductors; in fig. 10 - the process of rolling an insulating material; in fig. 11 - insulation material at the location of the current leads; in fig. 12 - the same at the location of the conductors; in fig. 13 - removal of insulating material from the contact surfaces of the conductors; in fig. 14 - remove jumpers; in fig. 15 - folding the workpiece into the cylinder; in fig. 16 - curing insulating material.

The manufacture of the collector is carried out in the following sequence.

A blank is made for the conductive layer with a joint, for example, of two metal tapes 1 and 2. One of the tapes i is made with a length corresponding to the length of the current leads 3 and a working surface of the collector with conductors 4, and a tape 2 with a length corresponding to the length of the working surface of the collector. A blank of metal tapes is roll on m metal counterpart technological base 5, for example on pho,; and, ge, fixed in a frame. Technological metal base 5 and tape 1 and 2 are made of metals that are sensitive to different travitel m.

The connection of metal tapes 1 and 2 between themselves and the workpiece with a metal technological m base 5 is produced, for example, by knurling and diffusion welding (Fig. 2).

Then, conductor 4c is formed on the workpiece 1c and conductors 4 and printed out wiring 3, for example, by applying a photolithographic method on the surface of strips 1 and 2 of a mask with spacing of conductors 4 and current leads 3 (FNG.C) and subsequent chemical etching of gaps 6 between them to base 5 (Figures 4-6). The conductor 3 and the conductors 4 are delimited by a step 7. The riocjie of cleaning a layer of photoresist from the surfaces of the conductor 4 is made on

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carrying a layer of softened dielectric 8 of inorganic origin (glass, cheese, ceramics) to the entire surface of the formed workpiece with the exception of the final uchetka 9 current leads 3 (Fig.7-9). The applied dielectric layer 8 is rolled in a hot state in order to calibrate the hot metal in a hot condition (Fig. 10-12). This eliminates step 7, previously formed in the process of diffusion welding of layers of strips 1 and 2 and from base 5, and demarcating conductors 4 and current leads 3. On the working surface of the collector, conductors 4 are insulated from each other dielectric m 8, and current leads 3 are completely covered a dielectric layer with the exception of the end sections 9, which are external collector leads (Fig. 9). After that, cleaning of the contact surfaces is carried out, for example, by dimensional etching with an ion beam in a vacuum (Fig. 13). The cleaning is carried out in order to remove from the contact surfaces of the conductors 4 a thin dielectric layer 8, remaining on them after the thickness calibration operation.

Then, a temperature annealing of the preform is performed in a vacuum chamber to relieve stresses in the surface layers. After that, chemical etching of the technological base 5 is carried out until it is completely removed, then jumpers 10 and 11 are removed (Fig. 14).

The finished work surface, which is a collector in expanded form, at the softening temperature of the dielectric 8, is wound along the length of the tape into the cylinder. Then, the finished collector (Fig. 16) is sintered in a vacuum chamber by means of diffusion welding to ensure its monotony. In this case, the insulation is molded by rolling. Then, the collector is polished to eliminate possible biennials, the ends of the current leads 3 are separated and insulated, for example, by dipping into water glass. The last stage of the manufacture of the collector involves the vacuum deposition of the conductors 4 of the precious metal coating on the contact surfaces of the conductors 4.

The manufacture of a collector using elements of integrated technology and diffusion welding, followed by sintering the resulting collector in vacuum, allows for the implementation of a highly efficient vacuum manufacturing and cleaning technology for collectors, eliminating the main source of organic contamination of contact surfaces, which is the traditional method of producing miniature multi-ring collectors by pouring epoxy compound that allows to eliminate organic failures products. In this way.

the invention makes it possible to increase the reliability of precision miniature current collectors. The manufacture of collectors by this method also makes it possible to maximally automate the process of producing collectors at the stage of forming the workpiece surface of the collector.

Claims (4)

Invention Formula . A method of manufacturing a collector, including the manufacture of a blank for a conductive layer, connecting it to the technological base, forming a printed wiring on the blank of the conductors, applying an insulating material between the conductors, curing it, removing the insulating material from the contact surfaces of the conductors, by the fact that, in order to eliminate the contamination of the contact surfaces of the conductors with insulating material in the course of operation, metal are made of tapes, the length of one part of which corresponds to the length of the working surface of the collector, and the other part is equal to the sum of the lengths of the working surface of the collector and current lead by putting them into a package, forming a conductor 0 five 0 with the formation of technological jumpers between the current leads and jumpers between conductors, the application of an insulating material, such as glass or ceramics, between the conductors is carried out by rolling it in a softened state, after removing the insulating material from the contact surfaces of the conductors, annealing of the workpiece is performed, removal of the technological base and jumpers and rolling of the workpiece along the length of the tape into the cylinder at the temperature of softening the insulating material, and curing the material vacuum molding with simultaneous insulation between conductors, for example, rolling rolls. 2. A method according to claim 1, characterized in that the fastening of the bag and its connection with the technological base are carried out by knurling and diffusion welding. 3. A method according to claim 1, characterized in that the removal of the insulating material from the contact surfaces of the conductors is carried out by ion beam bombardment. 4. A method according to claim 1, characterized in that the removal of the technological base is carried out by chemical etching. FIG. one 9ig.2 j 3 s u, st Faye. five FIG. at Fi2.7 at / /// 77 / //////// (Pig 8) (Pig 9  - - hh   Hh at Fm ten FIG. eleven FIG. 12 Ioind / c puchon city / 3 FIG. W B Fig.15 FIG. sixteen Compiled by A. Lineva Editor Y. PetrushkeTekhred I. VeresKorrektor M. Sharoshi Order 1401/51 Circulation 626Subscription VNIIPI USSR State Committee for Inventions and Discoveries 1 13035, Moscow, Zh-35, Raushsk nab. 4/5 Production and printing company, Uzhgorod, ul. Project, 4