SU1460048A1 - Method of cutting glass tubes into pieces - Google Patents

Abstract

The invention relates to the industry of construction and building materials, to the field of cutting articles from tubular, capillary materials, used in particular in microelectronics, optical, communication equipment and the vacuum industry in the manufacture of microcapillaries, insulators, microcircuits, microelements for optical connections. . In order to prevent the introduction of cutting products and adhesives into the tubes and spinning the exit of usable products, the tubes are filled with a viscous liquid before laying, then placed on a technological substrate, filled with an adhesive mixture, which is used as a wax mix, cut into specified segments and washed in an adhesive solvent. The solvent can be methyl ethyl ketone. If it is necessary to treat the hole for the cone to enter the optical fiber, the tablet serves as an excellent matrix for aligning the lead-in cones, saving 80% of the time spent filling the capillaries into rubber cassettes using traditional technology. 3 hp f-ly. about. THX

Description

The invention relates to the construction industry, to glass production, to the field of cutting articles from tubular materials used in microelectronics, op. tic, vacuum and some other industries.

The purpose of the invention is to prevent the introduction of cutting products and adhesives into the tubes and increase the yield of products.

The method is carried out as follows.

Tubes or capillaries after extrusion are cut into blanks with a length exceeding the length of the technological substrate by 5-10 mm, the length of the substrate

usually 10-30 times longer than the length of a given capillary length. Thus, if it is necessary to obtain segments of capillaries with a length of 6 mm, the substrate length is 80 mm, and the length of the workpieces is 85 mm. Then the blanks are placed in a narrow tall glass, at the bottom of which glycerin is poured. A glass with blanks is heated in a drying cabinet to 160-180 s and held at this temperature for 2-3 minutes. Glycerin fills capillary cavities under the action of capillary forces. Next, the workpiece is cooled, degreased with alcohol and placed on the technological substrate. It is convenient to use a pipe with an internal diameter of 10–20 times larger.

than the diameter of the tube being cut. The blanks filled with glycerin are placed in a pipe; After the capillaries are filled, the pipe is filled with an adhesive, for example, a wax mixture (1 part of wax for 10-15 hours rosin). A tube with tubes for convenience of cutting can be pre-placed in a satellite, for example, of wood, having the form of a bar with a hole under the tube. Within 10-15 minutes, the wax wax mixture hardens and firmly seizes the tubes, but does not get inside them. The ratio between wax and rosin 1: (10-15) is caused by the need to have a glue that is tough enough in the frozen state, which is provided with an excess of rosin, but the composition must have good casting properties, not be too brittle, and not be dyed during processing. The use of a mixture of wax and rosin within such limits ensures the required quality of fastening of the capillaries.

After gluing a tube with capillaries into the satellite, it is mounted on a table of a PRP-2 type machine and fixed, for example, by mechanical means. The cutting of the glass tubes into pieces is carried out with cutting circles from diamond-containing rolled products with a thickness of 0.1-0.15 mm and a diameter of 75-100 mm. The treatment is performed using coolant. Next, a tablet with cut off capillary lamines is washed in a solvent (methyl ethylene ketone) in the Sosklett apparatus. After 15-20 minutes, all segments of the tubes are washed off. In this method, industrial batches of multicomponent K-8 glass with an outer diameter of 0.7-1.5 mm with an opening of 0.11-0.25 mm in diameter and 5-8 mm in length in the amount of 18 thousand pieces are treated. -e r. The capillaries of the K-8 glass are cut to blanks 85 mm long after transfer. The external diameter of the capillary is 0.7 mm, the internal 0.125 mm. The blanks are placed in a narrow beaker, at the bottom of which there is a layer of glycerin 3-5 mm deep. A glass with blanks is placed in a drying cabinet and held at 160-180 ° C for 2-3 minutes. Glycerin fills capillary with the action of capillary forces. The blanks are removed and rubbed before laying with a cotton swab dipped in alcohol. The pipe is also degreased into which the blanks are then placed. A multicomponent glass tube with a length of 80 mm, a wall thickness of 2 mm and a diameter of 20 mm is used. A mixture of wax and rosin, taken at a ratio of 1:12 by weight, is poured into a tube with capillaries, previously placed in a wooden bar with a hole in the end face with diameters of 24 mm and a depth of 90 mm. After 10-15 minutes the mixture solidifies and the bar is clamped on the table of the machine type ЗГ71М and cut into

5 pieces with a length of 6 mm. The cutting of the blanks is carried out with an AOKC-type cut-off wheel from diamond-containing rolled metal 0.7 mm thick, 175 mm in diameter, 63/50 grit on a M1P link, with a concentration of 100%. A 5% solution of soda in water was used as a coolant. Next, tablets with capillary pieces are placed in a Soscletta apparatus and

5 washed with methyl ethyl ketone, after 15–20 min all capillaries are washed out and ready for further use.

In one such cycle, more than 20 thousand capillaries are obtained. If it is necessary to treat the aperture to enter the optical fiber, the tablet serves as an excellent matrix for aligning the lead-in cones, saving 80% of the time, filling it in to fill the capillaries with rubber

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Claims (3)

1. A method for dividing glass tubes into pieces by laying them on a technological substrate, pouring in an adhesive substance, cutting them into predetermined lengths and washing them in a solvent from an adhesive substance that is In order to prevent the introduction of cutting products and adhesives into the tubes and increase the yield of products, the tubes are filled with viscous fluid before laying. 2. A method according to claim 1, characterized in that glycerin is used as a viscous liquid. 3. A method according to claim 1, characterized in that as an adhesive, a wax-mix mixture is used in a ratio of 1: (10-15) by weight. 51460048 4, The method according to claims. 1-3, about t of l and - solvent wax mix resulting from the use of methyl ethyl ketone.