Bomb

Bomb and cup on a bomb

Crane figures with bombs

The term Bomse comes from the ceramic and porcelain industry . It refers to a base for the item to be fired, which ideally has the same coefficient of expansion as the item to be fired . This minimizes any friction / tension that may occur and prevents the item to be deformed in the furnace. The bomb usually consists of unfired ceramic mass. In porcelain production, for example, the bomb is very often cast from the same mass as the broken glass . However, this is not absolutely necessary; supports made from fireclay can also be used.

use

The Bomse is a kiln furniture , either after the bisque firing or after decoration firing is removed again. Standing porcelain figurines and sculptures in particular are supported by stable bombs to prevent individual protruding parts from sinking or compressing during the sintering sharp fire . After the fire, the bomb can no longer be used and must be disposed of. Bombs were also used in the manufacture of electrical insulators, a brief description can be found in Gustav Benischke's book The Porcelain Insulators from 1921.

The Bomse was developed in 1785 by Franz Joseph Weber in Ilmenau , where he was director from 1784 to 1786.

There are regionally different names for this kiln furniture. In the Saxon region, "der Boms" (singular) and "die Bomse" (plural) are also said. In addition, the gender of the word is hardly differentiated: the, that or the bombs are used next to each other.

Web links

Commons : Bomse - collection of pictures, videos and audio files

Individual evidence

↑ Raphael Eduard Liesegang (Hrsg.): Colloid-chemical technology: A handbook of colloid-chemical approach in the chemical industry and technology . Springer-Verlag, 2013, ISBN 978-3-642-49919-7 , pp. 685 ( books.google.de - first edition: 1927, reproduction of the 2nd edition from 1932).
↑ The porcelain insulators . Springer-Verlag, 2013, ISBN 978-3-662-26111-8 , section: 3. Drying, glazing and firing. , S. 6 ( books.google.de - first edition: 1921).
↑ Ekkehardt Krämer (Hrsg.): Saxon-Thuringian manufactory porcelain. Glass ceramic publicly owned foreign trade company of the German Democratic Republic, Berlin 1985.

[1] Raphael Eduard Liesegang (Hrsg.): Colloid-chemical technology: A handbook of colloid-chemical approach in the chemical industry and technology . Springer-Verlag, 2013, ISBN 978-3-642-49919-7 , pp. 685 ( books.google.de - first edition: 1927, reproduction of the 2nd edition from 1932).

[2] The porcelain insulators . Springer-Verlag, 2013, ISBN 978-3-662-26111-8 , section: 3. Drying, glazing and firing. , S. 6 ( books.google.de - first edition: 1921).

[3] Ekkehardt Krämer (Hrsg.): Saxon-Thuringian manufactory porcelain. Glass ceramic publicly owned foreign trade company of the German Democratic Republic, Berlin 1985.