| Durferrit GmbH Patent applications |
| Patent application number | Title | Published |
|---|
| 20110160450 | EXPLOSIVE - The invention relates to an explosive comprising 2,6,10-trinitro-s-heptazine and/or derivatives thereof as an active chemical compound. | 06-30-2011 |
| 20100243109 | METHOD FOR PRODUCING CORROSION-RESISTANT SURFACES OF NITRATED OR NITROCARBURATED STEEL COMPONENTS - The invention relates to a method for producing corrosion-resistant surfaces of nitrated or nitrocarburated steel components, the surfaces having roughness heights (Rz) of Rz≧1.5 μm. The method comprises the following steps: oxidation of the surfaces of the nitrated or nitrocarburated components in a first oxidation step; carrying out at least a second oxidation of the component surfaces in an immediately subsequent oxidation step; polishing the component surface in a final method step, directly after the final oxidation. | 09-30-2010 |
| 20100108198 | METHOD FOR HARDENING THE SURFACES OF WORK PIECES MADE OF STAINLESS STEEL, AND A MOLTEN SALT BATH FOR REALIZING THE METHOD - A method for hardening the surfaces of work pieces made from stainless steel includes submerging the work pieces into a molten salt bath having the composition: potassium acetate 60-100 weight %; sodium acetate 0-100 weight %; metal salt 0-2 weight %, and are subjecting the work pieces to the molten salt bath for a period of 24 to 240 hours, during which the temperature of the molten salt bath is maintained less than 400° C. | 05-06-2010 |
| 20080233527 | Method for continuous mixing and melting inorganic salts and furnace installation for realizing the method - The invention relates to a method for the continuous melting of inorganic salts and a furnace installation for realizing the method. Solid salts are fed into a furnace with the aid of a feeding unit. The salts contained in the furnace are heated. A flow of the salts is generating inside the furnace with the aid of a circulating unit. The flow generates a two-phase region containing solid and melted salt and a separate second region containing substantially solely a melt that is heated to the desired temperature. The melt is discharged from the separate second region simultaneous with the feeding of the solid salts into the furnace with the aid of a removal unit. | 09-25-2008 |
