Daimler Chrysler Ag

Heinz Voggenreiter

Heinz Huber

Albert Seidel

A water soluble core of an aluminum or magnesium alloy is used for the production of an object with a hollow space. The aluminum or magnesium alloy is rendered water-soluble by flame spraying or by sintering to produce a high oxide content.

Process for the production of an object with a hollow space

Cryogenic valve with at least one pair of sealing elements, preferably one with a seat and a tappet, whose seat surfaces are in sealing contact with one another in the shutoff position. At least one sealing element of the pair is formed of a linearly superelastic shape memory alloy, which is stabilized by plastic cold working in the martensitic textural state, i.e., no longer displays a shape memory effect.

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München, Germany

Heinz Voggenreiter