DE2032254A1 - Glass in lead window frames prodn - Google Patents

Abstract

"Glass-in-lead" windows are prod. by placing the window panes, which have been suitably cut to size, in a mould and joining with a resin which is applied as a thin layer and is allowed to cure. The exact resin compsn. depends on the casting temp. but pref. contains Araldite DCY 230, curing agent HY 951 and Plenamix (RTM's). Use may be made of non-woven glass fibre or polyamide reinforcement.

Description

"Process for the production of cast glass works" The present The invention relates to a method for the production of glassworks in a simple, faster way and economical way.

It is known that traditional glassworks consist of pieces of glass, which are distributed according to a specified design and fastened in a lead frame are. The process of manufacturing glassworks requires the following operations: Drafting the template, finishing the gabarits (shaped boards), cutting the Glasses, Edging in lead, soldering the lead seams, inserting the Glasswork.

In the course of the method according to the invention, the prior to the conventional method cut and prepared pieces of glass or arbitrary Shapes set against each other in a mold with the help of a synthetic resin.

For cold casting, the resin is composed as follows: 82% of the casting compound consists of an epoxy resin (AralditeY 230), 12% hardener (HY 951), 6 z Plenamix, and for hot casting: 82% Araldit AY 103, 8% hardener HY 951, 10% plenum mix.

For the casting of a glasswork, for example, the pieces of glass are used placed on a plane surface or on a form, being between the Pieces a gap is left between 1.5 mm (minimum) and 150 mm (Maximum) can fluctuate. It must be ensured beforehand that the visible side is sealed to keep this pure, what with mastic or with a stretchable Plastic mass can happen.

After the mold is completed, the resin is made from the above components mentioned, depending on whether the casting is to be carried out cold or warm.

The components are intimately mixed into a mixture and this poured between the pieces of glass, then on top of them until the layer thickness of the Casting material over this is about 1 mm.

The same procedure is used for hot casting, but afterwards the mixing is carried out one or more times with infrared rays or in a different way.

It goes without saying that the surface to be kept clean in the casting mold is to be protected; in the case of war) n shedding, this is done through a burner earth.

The manufacturing process according to the invention allows not only that Potting of glass works in a plan form, rather also in one cylindrical, parallelepiped and even spherical shape.

In addition to decoration, particularly interesting areas of application are the manufacture of lamps and furniture.

As a variation on the present method, before or during the Pouring the resin a fiber or wire reinforcement into the layer of the glasswork be introduced.

This reinforcement can either be woven or non-woven Textile pieces made of glass or nylon fibers or another material, or from a metal net or from wires and fibers of one or the other material.

It is easy to see that such reinforcement is the mechanical Resistance of the glasswork made in this way is considerable increases, its resistance to impact and pressure improves and allows a larger area expansion.

The reinforcement can of course be in direct contact with the person Glass pieces laid out in the bottom of the casting mold are placed beforehand, d. H. before pouring the resin. According to the desired effect, it is also possible the Reinforcement in the layer to support the pieces of glass or near the To insert the outside of the resin.

According to another variant of the method, a variant that works well on glassworks with reinforcement as well as those without reinforcement can be used, the resin is poured around fragments (pieces and / or fragments) made of colorless or multi-colored glass or glass with a dominant color, the is placed in the mold before or during casting.

The presence of these glass fragments in the resin, both in the joint zone as well as in the zone behind the glass pieces of the glass work, reinforced the luminosity of the latter, which is based on the iridescence that emanates from them.

This measure also has the advantage that the expansion coefficient of the glass work (resin and glass particles) is approximated to that of the glass, whereby As a result, the tension created by the temperature changes in the surface glass results, reduced.

This also considerably reduces the risk of breakage for that Glass.

According to a modified method of this variant the glass fragments exclusively between the pieces of glass of the glasswork in front of the Pouring the resin introduced into the mold.

In this case, the iridescence is limited to the joint zone, which means the contours of the glass pieces of the glasswork are emphasized.

If the joints between the pieces of glass of the glasswork are opaque In general, heavily powdered pigments are used, which are rather unstable such as carbon black or pine or other dyes. This instability is a Disadvantage when pouring the resin.

To circumvent this inadequacy, these pigments are made before Placing in the mold mixed with a glass powder, which fixes it.

Of course, the invention is not limited to the variants and examples of this procedure alone should be considered as non-limiting examples are; on the contrary, the invention encompasses all implementation possibilities.

That means, for example, that it doesn't matter which one decorative, figurative or other motifs in the mold before or during the resin casting is inserted, and whether this hotiv in glass or other materials that turn out to be turn out suitable to be embedded in the mass of the glasswork, designed will.

In the same way, without departing from the field of the invention, alternatively for the pieces of glass in the glassworks or in combination with these elements used from other translucent, translucent or opaque materials will.

Patent claims

Claims (13)

Claims: 1. Process for the production of cast glass works, characterized in that the glass pieces according to the traditional method previously prepared and cut or laid out in a mold in any shape are and by a synthetic resin, which is applied in a suitable layer thickness is, are held, with the solidification in the cold or in the warm process accomplishes. 2. A method for producing cast glass works according to claim 1, characterized in that the synthetic resin for cold casting according to the following The recipe is: 82 8 Araldit DCY 230, 12% hardener HY 951, 6 z Plenamix. 3. The method according to claim 1, characterized in that the synthetic resin is made for hot casting according to the following recipe: 82% Araldit AY 103, 8 8 Hardener HY 151, 10 z Plenamix. 4. The method according to any one of claims 1 to 3, characterized in that that in the layer thickness of the glasswork before or during the resin casting a reinforcement is embedded from fibers, threads or wires. 5. The method according to claim 4, characterized in that the reinforcement from a woven or non-woven piece of textile made of glass or nylon fibers or consists of other textile material. 6. The method according to claim 4, characterized in that the reinforcement consists of a metal net. 7. The method according to any one of the preceding claims, characterized in that that the reinforcement pieces in contact with the glass before pouring the resin is embedded. 8. The method according to any one of claims 1 to 6, characterized in that that the reinforcement is inserted between two successive resin casting processes is, the first being sufficient at least to the joints between the pieces of glass to fill. 9. The method according to any one of the preceding claims, characterized in, that the resin-stained or multi-colored glass fragments or those of a dominant color be cast around, which are placed in the mold before or during casting. 10. The method according to any one of the preceding claims, characterized in, that the glass fragments between the glass pieces of the glasswork before pouring of the resin are inserted. 11. The method according to any one of the preceding claims, dadui'ch characterized d the pigments intended to cover the joints mixed with glass powder before they are placed on the bottom of the casting mold in the spaces between the glass bags be introduced. 12. The method according to any one of the preceding claims, characterized in that that in the mold before or during the resin casting a decorative, figurative or another motif is inserted into glass or another material. 13. The method according to any one of the preceding claims, characterized in that that at least certain elements of the glassworks going into the mold inlaid before resin molding, made of a translucent, translucent or opaque material that is not glass exist.