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An atmospheric pressure plasma assembly

A plasma, atmospheric pressure technology, applied in electrical components, liquid injection devices, coatings, etc., to solve problems such as bulky systems

Inactive Publication Date: 2008-11-26
DOW CORNING IRELAND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The setup requires a complete surface treatment unit by which the width of any substrate to be treated is effectively limited, making the system bulky

Method used

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  • An atmospheric pressure plasma assembly
  • An atmospheric pressure plasma assembly
  • An atmospheric pressure plasma assembly

Examples

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Embodiment Construction

[0077] 1 and 3, there is provided an atmospheric pressure plasma assembly 100 comprising a plasma generating unit 7 comprising a substantially cylindrical body 17 having a substantially circular cross-section and comprising a process gas inlet 12 for introducing process gas Go to Unit 7. Process gases are used to influence the plasma. An ultrasonic nozzle 10 is provided for introducing a reactant. The unit 7 also includes a pair of electrodes 4, both plated or sealed with a dielectric material 3. The electrodes are kept separated by a predetermined distance by a pair of electrode pads 5 . Dielectric plated electrodes 3 , 4 protrude outward from the atmospheric pressure plasma generating unit 7 . The atmospheric pressure plasma generation unit 7 is designed such that the only outlet for process gases and reactants introduced into the unit 7 is through the plasma zone 6 between the dielectrically plated electrodes 3,4.

[0078] Like the atmospheric pressure plasma generating...

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Abstract

A method of forming a coating on a powdered substrate, which method comprises introducing an atomized liquid and / or solid coating forming material and separately transporting a powdered substrate to be coated into an atmospheric plasma discharge and / or an ionized gas stream resulting therefrom, and exposing the powdered substrate to the atomized liquid and / or solid coating forming material.

Description

technical field [0001] The present invention relates to atmospheric pressure plasma assemblies and methods of processing a substrate with said assemblies. Background technique [0002] When a substance is continuously energized, it increases in temperature and typically transforms from a solid to a liquid and then to a gas. Continued application of energy causes the system to undergo a further change of state, in which neutral atoms or molecules of the gas are shattered by high-energy collisions, producing negatively charged electrons, positive or negative ions, and other species. This mixture of charged species exhibits a collective behavior called "plasma," the fourth state of matter. Due to their electric charge, plasmas can be greatly affected by external electromagnetic fields, making them easy to control. Furthermore, their high internal energy allows them to handle other states of matter that are impossible or difficult to handle with liquids or gases. [0003] The...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01J37/32C23C4/12B05B7/22
Inventor 弗兰克·斯沃洛比德·多比恩斯图尔特·利得雷
Owner DOW CORNING IRELAND