METHOD OF PRODUCING AN OPERATING FLUID TANK
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United States of America Patent
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Issued Date -
Mar 4, 2021
app pub date -
Aug 27, 2020
filing date -
Aug 30, 2019
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Abstract
A method of producing an operating fluid tank includes providing a mold core produced from a mold core material. The mold core has a holding region, by which the mold core is held in a tool mold or in a plastic molding machine. The mold core is surrounded with a plastic melt, and an opening remains in the operating fluid tank. The mold core material is removed from the operating fluid tank by the remaining opening, and a structural element is arranged at the mold core separate from the holding region, and is held by the mold core while being surrounded with the plastic melt. An inner surface of the operating fluid tank is then formed, to which a structural feature arranged on the structural element is transferred. The structural element is removed from the operating fluid tank through the remaining opening after at least partial hardening of the melt.
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