Method for producing a solar power receiving tube and resulting tube
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United States of America Patent
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May 19, 2015
Issued Date -
N/A
app pub date -
Oct 4, 2010
filing date -
Oct 5, 2009
priority date (Note) -
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Abstract
The invention relates to a method for producing a solar power receiving tube and to the resulting tube, which is of the type that includes: an outer glass tube, an inner metal absorber through which a heat-transfer fluid flows, and an intermediate area in which the vacuum is produced. The method comprises the following steps:
- i. Production of the metal tubesii. Production of the glass tubes: namely a longer central glass tube and two shorter glass tubes for the ends.iii. Process for the production of the Kovar rings or glass-metal transition elementsiv. Process for the welding of the Kovar rings to the tubesv. Process for the production of the bellows or expansion compensating devices assembliesvi. Assembly of the products obtained in the preceding operationsvii. Creation of the vacuum and anodising of the welds.
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