The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 21, 1982
Filed:
Aug. 26, 1980
Antoinette Morell, Paris, FR;
Antonio Hermosin, Paris, FR;
Thomson-CSF, Paris, FR;
Abstract
A process for rapidly sintering ceramic components, in particular of the type utilized in electronics (ferrites), which reduces the sintering time by a factor of from ten to one hundred, reducing the volume of the kiln and resulting in a considerable saving in electric power. In this process the unbaked components previously shaped by pressing with a binder are sintered without carrying out the prior heat treatment of elimination of the binder. The sintering is made according an accurate curve of temperature as concerns the slopes of the rising and descending parts of the curve. The maximum of the curve exceeds by from 100.degree. C. to 300.degree. C. the normal temperature of sintering in the conventional method. The kiln, which is of the passage type with a conveyer belt sliding on rods of alumina, has six heating zones regulated by a thermocouple and a feedback loop pertaining to each zone so as to achieve a heating profile with a high accuracy.