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Metallic layer membrane

A metal layer and diaphragm technology, applied in the direction of metal layered products, coatings, layered products, etc., can solve problems such as loss of air pressure

Inactive Publication Date: 2012-06-13
THE GATES CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is why carbonated soft drinks and / or beer retain dissolved gas over time in aluminum cans or glass bottles, but in plastic bottles usually lose air pressure over time

Method used

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  • Metallic layer membrane
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Embodiment Construction

[0028] In the present invention, a very thin layer of aluminum or other suitable metal is used to reduce or eliminate gas permeability in the elastomer while keeping the elastomer flexible. To prevent, for example, aluminum or other metal additions from being stretched beyond their yield point and causing plastic deformation or rupture of the metal layer, the bladder is stretched to or beyond its maximum stretch point, such as on a mandrel tool (i.e., using The membrane is formed during the maximum elongation or stretch that will be formed on the elastomer.

[0029] Once the bladder is relaxed, the thin metal layer and its elastomeric polymer backing will wrinkle in a manner similar to taking an empty potato chip bag and squeezing it into a ball. When it is released after being squeezed, the bag can expand in a similar manner without any problems. This can be repeated many times.

[0030] At the point of zero tension of the bladder (flat state), the shape of the metal layer ...

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Abstract

A membrane comprising a first elastomeric layer and a second elastomeric layer, a metallic layer deposited in a non-stressed condition on a substrate elastomeric layer when said substrate elastomeric layer is in a stretched condition, the metallic layer having zero gas permeability, the metallic layer and the substrate elastomeric layer disposed between and bonded to the first elastomeric layer and the second elastomeric layer, the first elastomeric layer and second elastomeric each comprising a cavity for receiving the metallic layer and substrate elastomeric layer upon a contraction of the membrane.

Description

technical field [0001] The invention relates to a membrane having a metal layer deposited in an unstressed state on a substrate elastomer layer, the metal layer having a gas permeability of zero. Background technique [0002] The working principle of a pressure accumulation tank is very simple. The tank interior is divided into two parts, which are separated by a flexible membrane (vesicle). On one side (usually the roof side above the bladder) there is gas (usually air) at high pressure. Liquid is present on the underside. When a liquid is used (in an open circuit system such as a well) or when it is circulated in a closed circuit system (such as a heated tank space or a hydraulic system), the pressure from the gas behind the diaphragm builds up on the liquid pressure. In either case, the bladder maintains pressure on the liquid until the control system instructs the pump to pump more liquid into the tank. [0003] The bladder is usually made of an elastomer, but it ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B3/30B32B25/00F24D3/00
CPCB32B25/00F24D3/1016B32B3/30B32B7/14B32B25/042B32B25/10B32B25/12B32B25/14B32B25/20B32B3/28B32B2255/02B32B2255/10B32B2255/205B32B2262/0207B32B2307/51B32B2307/7242B32B2439/40Y10T428/24612B32B1/00B32B15/06B32B3/00F24D3/00
Inventor Y·霍贾特
Owner THE GATES CORP