DE440870C - Process for marbling standing cast sulfur bodies - Google Patents

Description

It is known to give the sulfur casting compounds a marble-like appearance (cf. Patent 380,898). One proceeds in such a way that two are heated to different levels and at different levels the colored masses poured together in a mold. The hotter of these masses is the thicker and sinks to the bottom of the mold, as in the cited patent in Figs Lines 13-15 is correctly specified.

Therefore, only flat objects can be cast using this and similar methods will. Vases e.g. B. and other standing bodies are ruled out here, because when used the previous method would limit this marbling to only the lower part of the casting mold, the upper part however, it would appear in the color of the main casting compound.

Another disadvantage of the previous method was that to represent the vein mass pure colored sulfur is taken. Therefore, the veins appearing on the outside of the bodies are very large soft and can be injured very easily.

A third disadvantage of the previous method was also that as a result the usual casting process of the sulfur casting compounds, the entire mold with both the main casting compound and the veining compound (colored sulfur) had to be poured full 30 "and, after sticking to the mold a Crust had formed, the still hot and liquid mass from inside the mold in the kettle was poured back. But this pouring back becomes after and after changing the composition of the main molding compound and further changing its color.

The present invention now avoids these inconveniences. It can according to the invention any standing bodies made of cast sulfur can be marbled. The production Such a marbled body happens as follows:

There is first a Schwefelgußkörper a cast (see. Figure), the mass contains 70 to 85 percent 'sand with addition of long-fiber glass wool and 15 to 30 percent sulfur, whereby the general

Strength of the vase is greatly increased. This cast sulfur body a, hereinafter referred to as "inner body" for short, can be cast in a plaster mold · since its outside does not need to be bare and flat. Its shape must be approximately adapted to the shape of the body to be cast and marbled, but must always be about 3 to ι ο mm away from the metal mold b.

At its lower end, the inner body receives a foot c. This inner body α is now placed in the metal mold b ; an overlapping ring (bead) d of the mold cover e ensures that the inner body α

always remains evenly spaced from the mold b . The main casting compound and the vein compound (s) are then poured into the cavity f formed by the inner body a and the casting mold b. The main

zo casting compound consists of an ordinary one known sulfur casting compound; the ade-; tion masses consist of sulfur, color and instead of adding sand from coarse, pure metal powder (e.g. iron, copper, lead '

etc.). This ensures that the main ^; The casting compound and the various veining compounds have a different specific weight and therefore cannot mix. The cavity / is then poured in with these masses. As a result of the small width of the cavity f , the mass on the large cooling surface of the casting mold will solidify and solidify very quickly, so that the following still hot and liquid masses can no longer sink to the bottom. The inner body α combines with the cast and veined vase to form a whole.

Claims (1)

Claim: Process for marbling standing cast sulfur bodies, characterized in that a resistant, e.g. B. from 70 to 85 percent sand with glass wool additive and 15 to 30 percent sulfur cast inner body (a), which fits into the mold as evenly as possible, centered it by means of an overlapping ring (cf) on the mold lid (e) and then let the marbling mass of sulfur, paint and coarse metal powder flow into the casting space (/).