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Process for manufacturing paint-coated electric strip steel, and paint-coated electric steel strip

A strip material and electrical technology, applied in chemical instruments and methods, devices for coating liquid on the surface, coating, etc., can solve the problem of thick insulating paint layer, insufficient long-term dimensional stability of batteries, and reduced lamination coefficient. minor issues

Active Publication Date: 2020-01-17
VOESTALPINE STAHL GMBH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

On the other hand, the increase in the thickness of the insulating varnish layer is beneficial from the point of view of insulation, but it will lead to a decrease in the lamination coefficient. In order to achieve high efficiency, the lamination coefficient should be as large as possible.
In addition, the thickness of the insulating varnish layer is too thick, which may lead to insufficient long-term dimensional stability of the cell in operation (ie: settlement test (Setzungstest) failed)

Method used

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  • Process for manufacturing paint-coated electric strip steel, and paint-coated electric steel strip
  • Process for manufacturing paint-coated electric strip steel, and paint-coated electric steel strip
  • Process for manufacturing paint-coated electric strip steel, and paint-coated electric steel strip

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Embodiment Construction

[0032] In this specification, terms such as "coating" and similar terms (eg, "coated") should not be taken to mean that the coated layer must be in direct contact with the surface being coated. There may be interlayers between the "coating" layer and the underlying surface. However, the above terms or similar terms disclosed in this specification may also have a specific meaning, that is, the coating layer is in direct contact with the surface of the underlying layer, that is, there is no interlayer.

[0033] The term "on" means that an element or a layer of material is formed or placed on a surface that may not be placed directly on the surface, i.e. the element or layer of material There may be intervening elements or material layers between the surfaces. However, the term "on" may also have the specific meaning that the object or layer of material may be placed "directly" on the surface, eg, in direct contact with the surface. Other similar terms disclosed in this specifi...

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Abstract

In a process for manufacturing a paint-coated electric steel strip, a first coat of insulating paint is applied in a wet state to at least one face of an electric steel strip. A wet second coat of insulating paint is applied on top of the wet first coat of insulating paint. The first coat of insulating paint and the second coat of insulating paint are dried in a drying kiln.

Description

technical field [0001] The invention relates to a method for producing a lacquered electrical sheet strip and to a lacquered electrical sheet strip. Background technique [0002] Electrical steel sheets (Elektrobleche) are used in electrical engineering for the production of generators, electric motors, transformers and other electric machines. According to requirements, electrical steel sheets are made of different steel alloys and have different soft magnetic properties, power loss, thickness and other important properties depending on their field of use. [0003] Electrical steel sheets are cut from electrical sheet strips (also known as electrical steel sheets (Elektroband) in industry) according to a certain length and size. These electrical steel sheets constitute the raw material of the magnetic core (called a battery core) of a motor using these electrical steel sheets. The cell consists of layered electrical steel sheets that are electrically insulated from each o...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D8/12H01F1/18B05D3/02B05D5/10B05D5/12B05D7/00B05D1/26B05D1/28B32B15/08
CPCB05D3/0272B05D5/10B05D5/12B05D7/542B05D1/28B32B15/08C21D8/1283H01F1/18B05D2202/10B05D2252/02B05D2252/10B05D2401/20B05D2504/00
Inventor 弗卢克·罗纳德克佩特·蒂莫西
Owner VOESTALPINE STAHL GMBH