Process and device for mounting porous ceramic material
AssigneeDidier-Werke AG
InventorsJurgen Sommerer, Michael Leipold, Hartmut Kainer, Hermann Stein
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Abstract
This invention relates to mounting porous ceramic material to metal surfaces. The metal surfaces may either be flat surfaces or tubes. The ceramic material is held onto a perforated metal sheet by screwed-in spiral springs. The perforated metal sheet acts as a holding device and is located adjacent to a metal surface. The invention provides for porous ceramic insulation which is conveniently mounted with relation to the metal surface. Spiral springs absorb the stresses which occur during use.
Claims15
A process for mounting porous ceramic material to a metal surface to provide insulation for said metal surface, said process comprising the steps of:
- disposing a perforated holding means in fixed relationship on said metal surface;
- choosing porous ceramic material having a porosity of about 80% to about 90% and being of such hardness that spiral paths can be cut therein by spiral springs, and choosing spiral springs such that they can, on their own, cut spiral paths in the porous ceramic material when screwed thereinto;
- placing said porous ceramic material adjacent to said holding means;
- cutting helical paths in said porous ceramic material with spiral springs by screwing said spiral springs into said porous ceramic material;
- engaging said spiral springs with said perforated holding means by continually screwing said spiral springs, thereby attaching said porous ceramic material to said metal surface;
- and
- absorbing stresses with said spiral springs during use by deflection of said spiral springs, which stresses are at least caused by differences in thermal expansion between said porous material and said perforated holding means.
Dependencies are inferred from the claim text.