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Laminated wood for transformer ring

A technology of laminating wood and transformers, applied in transformer/inductor parts, layered products, wood-layered products, etc., can solve problems such as differences in bending strength, achieve high elastic modulus, high overall mechanical strength, bending Uniform intensity effect

Inactive Publication Date: 2007-07-25
内蒙古阿里河华洋电工层压木有限责任公司
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Problems solved by technology

[0003] The purpose of the present invention is to overcome the problem that the bending strength of each point of the compression ring produced by the prior art varies greatly along the radial direction according to the shortcomings of the above-mentioned prior art, and to provide a new process method to produce the transformer compression ring. In order to facilitate the safe operation of the transformer

Method used

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  • Laminated wood for transformer ring
  • Laminated wood for transformer ring
  • Laminated wood for transformer ring

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Embodiment Construction

[0014] specific implementation plan

[0015] Below in conjunction with accompanying drawing, feature of the present invention and related features are described in further detail by embodiment:

[0016] As shown in attached drawings 1-7, attached drawing 1 is a schematic diagram of radial veneer cutting; attached drawing 2 is a schematic diagram of another chord-wise veneer cut; attached drawing 3 is a schematic diagram of isosceles trapezoidal veneer; attached drawing 4 is Accompanying drawing 3 is a top view; Accompanying drawing 5 is a schematic diagram of overlapping veneers; Accompanying drawing 6 is a schematic diagram of splicing adjacent layers of veneers;

[0017] (1) Veneer preparation:

[0018] Birch veneer is prepared according to the same manufacturing process as electrical laminated wood (product standard LY / T1278-1998), and the general indicators are:

[0019] Specifications: length ≥ 400mm, width ≥ 400mm, thickness 1.0-2.0mm;

[0020] Moisture content: 6-8%;...

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Abstract

The present invention relates to a high-strength electric laminated wood board with stronger power for resisting deformation and its production method. The single wood board can be cut into the form of isosceles trapezoid according to a certain angle and wood grain direction, and the trapezoidal single board can be divided into two kinds of according to the wood grain direction, one is tangential direction, and the other is radius direction. Two oblique sides of every trapezoidal single board are obliquely ground in 5-7 deg. angle, several isosceles trapezoid single boards are overlapped into polygonal ring on a plane, then several polygonal ring single boards are coated with adhesive and combined together by action of press machine.

Description

technical field [0001] The invention relates to electrical laminated wood, in particular to a high-strength electrical laminated wood with strong deformation resistance and a manufacturing method thereof. Background technique [0002] Electrical laminated wood panels are widely used in oil-immersed transformers due to their remarkable electrical and mechanical properties. Electrical laminated wood boards are used as upper and lower pressure plates (pressure rings), lead brackets, pads, etc. in oil-immersed transformers, among which pressure rings are the main insulating parts in transformers, and are used in large quantities in transformers. Performance requirements are also high. At present, the domestically used electrical laminated wood pressure ring is made of electrical laminated wood through processing. Electrical laminated wood boards are stacked in such a way that the fiber directions of adjacent veneers are perpendicular to each other. After being processed into a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B21/13B32B3/00H01F27/00
Inventor 罗林生宋春恩
Owner 内蒙古阿里河华洋电工层压木有限责任公司
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