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Inventor:
Belt; Heinz-Joachim
Address:
Burgwedel, DE
No. of patents:
15
Patents:












Patent Number Title Of Patent Date Issued
7401724 Brazing flux for dry application July 22, 2008
A flux based on alkali fluoroaluminate is described which is highly suitable for dry application ("dry fluxing"). This is a flux which is free of fine-grained fraction, which is defined by a range of grain-size distribution.
6921545 Synergistic control of pests July 26, 2005
Sulfuryl fluoride and ovicidal gases have been found to exert a synergistic action on insect eggs, so it is possible to fumigate under sublethal conditions relative to the ovicide, and the dose of ovicidal gas can be reduced e.g. to sublethal concentrations.
6733598 Brazing flux for dry application May 11, 2004
A flux based on alkali fluoroaluminate is described which is highly suitable for dry application ("dry fluxing"). This is a flux which is free of fine-grained fraction, which is defined by a range of grain-size distribution.
6723153 Isolation of SF6 from insulating gases in gas-insulated lines April 20, 2004
Gas mixtures of SF.sub.6 and N.sub.2 which have been used as an insulating filler gas for underground cables can be separated by use of a membrane separation in order to recover the SF.sub.6.
6706090 Method for recovering and/or separating sulfur oxyfluorides from gas mixtures March 16, 2004
A method for the recovery or separation of sulfur oxyfluorides from gas mixtures, in which the gas mixture passes through at least one adsorption stage or membrane stage containing or consisting of zeolites with a modulus >10. The sulfur oxyfluorides fixed to the adsorbent may be made
6454837 Separation of gases containing SF6 September 24, 2002
Gas mixtures of SF.sub.6 and N.sub.2, which have been used, for example, as an insulating filler gas for underground cables, for insulating-gas window panes or as a filler gas for car tires and SF.sub.6 /air mixtures which have been used as a protective gas when casting magnesium can be
6350424 Low-melting potassium fluoroaluminate February 26, 2002
The production of a potassium fluoroaluminate having a low melting point, which can be used as a flux when soldering aluminum. The potassium fluoroaluminate is prepared in an aqueous medium from aluminum hydroxide, hydrogen fluoride and potassium hydroxide in a molar ratio of aluminu
6264096 Flux suitable for soldering light metals such as aluminum July 24, 2001
A flux which contains irreversibly dehydrated K.sub.2 AlF.sub.5, for soldering light metal materials, in particular aluminum. The flux has the advantages of forming a very uniform flux coating on the workpiece or workpieces to be soldered and exhibiting outstanding flow of the solder.
6221129 Process for preparing flux suitable for soldering light metals such as aluminum April 24, 2001
A flux which contains irreversibly dehydrated K.sub.2 AlF.sub.5, for soldering light metal materials, in particular aluminum. The flux has the advantages of forming a very uniform flux coating on the workpiece or workpieces to be soldered and exhibiting outstanding flow of the solder.
6105631 Preparation of homogeneous gas mixtures with SF.sub.6 August 22, 2000
Homogeneous compressed gas mixtures with SF.sub.6 and a gas with a density at least 4 grams per liter lower can be prepared by using a mixing station with at least the following elements: a gas premixer in which the separate gases are brought together; a static mixer and/or a buffer tank
6019856 Solderless aluminum brazing February 1, 2000
A method for aluminum brazing, in which the addition of a solder is no longer necessary. For this purpose a flux is used which contains 6 to 50 wt-% of potassium fluorosilicate and 50 to 94 wt-% of potassium fluoroaluminate. The flux can be used, for example, in the form of an aqueou
5985233 Low-melting potassium fluoroaluminate November 16, 1999
The production of a potassium fluoroaluminate having a low melting point, which can be used as a flux when soldering aluminum. The potassium fluoroaluminate is prepared in an aqueous medium from aluminum hydroxide, hydrogen fluoride and potassium hydroxide in a molar ratio of aluminu
5980650 Flux suitable for soldering light metals such as aluminum November 9, 1999
A flux which contains irreversibly dehydrated K.sub.2 AlF.sub.5, for soldering light metal materials, in particular aluminum. The flux has the advantages of forming a very uniform flux coating on the workpiece or workpieces to be soldered and exhibiting outstanding flow of the solder.
5866093 Method of preparing LiPF.sub.6 February 2, 1999
A method for preparing lithium hexafluorophosphate, which is useful as an electrolyte in primary and secondary cells, involves combining and cooling phosphorus pentachloride and lithium fluoride, and then adding hydrogen fluoride. Using this method, which is simple to perform, a good yie
5759707 Flux-coated metal components June 2, 1998
Metal structures, e.g. coolers or heat exchangers, can be produced by placing together metal components coated with solder, dipping them into a slurry of a flux, and soldering them by heating. Alternatively, components coated with solder can also be coated with flux, then placed together










 
 
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