SU783288A1 - Method of metallizing ceramic articles - Google Patents

Description

(54) METAL METHOD. CERAMIC PRODUCTS

one

The invention relates to electronic engineering, in particular, to method i of metallization of ceramic products.

There is a known method of metallization of ceramic products by pre-heating them, laying them on a metallization film with an organic base, then pressing them at a pressure of 8-12 kg / cm, holding them for 15 minutes at a glass transition temperature, and calcining the products.

The closest technical solution to the invention is a method of applying metallization films on the end surfaces of ceramic parts.

In this method, the product is heated to the melting and polymerization temperature of the glue, and the pressing is carried out at 1-2 kg / cm for 1-2 s.

However, according to the known methods, it is impossible to simultaneously lash two ends of miniature products such as bushings, plates, notice the part of the end surface, as well as the surfaces located in the groove.

The aim of the invention is to simplify the metallization process of miniature and complex product configuration.

This goal is achieved by the fact that in the method of metallization of ceramic parts, including heating the product, laying a metallization film on the product, prepressing and firing, the product is heated after the installation of the metallization film under an additional load of 0.02-0.08 kg / cm

A slight pressure during the heating process ensures the contact of the metgitlization layer with the surface of the ceramic products and prevents deformation of the tape. Depending on the composition of the metallization layer of the tape used, the heating of the products with the film is permeated to the glass temperature or melting and polymerization of the glue.

The proposed method is carried out as follows: use metallizing tape containing, by weight.h .:

25 Metallizing powders100 Suspension polybutyl methacrylate 5-7 Dibutyl phthalate 0.4-0.6. To carry out the metallization at the same time of the 2 ends of the miniature parts, the equipment is made {fig. in the form of three plates {FIG. 2): 1) base (1); 2) a plate with holes or grooves depending on the type of product / fixing the position of the part and part. extends beyond the plate on both sides (2); 3) plate - load (3), providing heating load on the metallization film p, 02-0, OiB kg / / cm. Meter lisation film in the stripes (Fig. 1) with a fluoroplastic film (or plate oi (5) - Fig. 1): ea is laid under the parts on the base and on the part - under the load. The parts, together with the metallizable film, which is under a load of 0.02-0.08 kg / cm, are heated to 120-140 ° C and then pressed in under a pressure of 12 kg / cm for 1-2 seconds. When metallizing a part of the surface of a product or surface located in a recess, it is preliminarily izgota; pour in a billet of a metal film, place the Billet blank on the products and press out the subpresso; using cargo (3, figure 2)

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Claims (1)

- With a rubber (or fluoroplastic) projection (4, fig. 2), a load of 0.02-0.08 kg / cm is applied to the metallization film and heated to 120-140 ° C. Then, the pressing is performed at a pressure of 1-2 kg See for 1-2 sec. The coatings obtained by the proposed method provide the possibility of creating vacuum-tight and mechanically strong joints on their basis. The static bending strength of specimens paired with copper solder is 2000 ± 300 kg / cm. Claims The method of metallization of ceramic products, including heating the product, placing a metallization film on the product, pressing and firing, is made so that, in order to simplify the process of metallization, miniature and complex configuration of products, heating. the products are made after laying the metallization film under an additional load of 0.020 .08 kg / cm.