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利昌工業

Establishment1937/12/21
capital450Ten thousand
number of employees550
addressOsaka/Kita-ku, Osaka-shi/2-1-9 Dojima
phone06-6345-8331
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last updated:Jul 28, 2023
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利昌工業 List of Products and Services

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High thermal conductivity materials High thermal conductivity materials
Printed circuit board materials Printed circuit board materials
Insulating material Insulating material
Industrial materials Industrial materials
Epoxy molded electrical equipment Epoxy molded electrical equipment
Insulating

Insulating material

This is an introduction to insulating materials, etc.

Thermosetting resin laminate

80 years since production began. We respond with the industry's leading lineup to accommodate various applications.

This is a plastic sheet with excellent electrical insulation, mechanical strength, and chemical resistance. There is also a flame-retardant type that complies with UL standards.

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Glass fiber reinforced plastic *A plastic material with excellent chemical resistance.

Re-emerging as a new material! A plastic that combines high strength, insulation properties, and chemical resistance.

Glass fiber reinforced plastic (GFRP) not only has excellent electrical insulation properties but also possesses heat resistance, mechanical strength, and chemical resistance, all while being a type of plastic. 【Features】 - The bending strength of a 1mm thick specimen is 450 megapascals, and the tensile strength is 350 megapascals. - The heat resistance temperature is 130°C. *Even after heat treatment at 180°C for 2 hours, there is no significant change in strength or dimensions. - The insulation resistance per 1mm of material is 28,000 volts. (JIS K 6911) - This plastic exhibits extremely low discoloration and dimensional changes due to aging. - Excellent chemical resistance to oils, solvents, acids, and alkalis. 【Applications】 - Machined into parts that require mechanical strength. - Areas where metals are unsuitable. - Areas requiring electrical insulation, thermal insulation, rust prevention, corrosion (electrolytic) prevention, and magnetization prevention. By replacing other materials you have been using with this, you can achieve improved functionality and cost reduction! *For more details, please download the catalog or contact us directly.

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Glass fabric substrate epoxy resin laminate

Well-balanced GFRP with electrical insulation, heat resistance, mechanical strength, and chemical resistance.

In addition to excellent electrical insulation properties, it possesses heat resistance, mechanical strength, and chemical resistance, despite being made of plastic. Utilizing these characteristics, it is often machined into parts that require mechanical strength and installed in places where metals would be unsuitable, such as areas needing electrical insulation, thermal insulation, rust prevention, corrosion (electrolysis) prevention, and magnetization prevention. Given its reasonable price, it offers a well-balanced combination of excellent properties, allowing for potential improvements in functionality and cost reduction by replacing other materials previously used, depending on the application. Furthermore, with a specific gravity of about 1.8, for example, in situations where stainless steel (specific gravity ≈ 8.0) parts are used for rust and corrosion prevention, replacing them with this material can achieve nearly 80% weight reduction.

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Coronaless

High-grade electrical insulation materials

■Features ○Excellent electrical properties There are no air bubbles inside, and it has particularly outstanding through-layer dielectric strength. It can be used safely even under high voltage. ○Excellent airtightness Due to the good adhesion between the substrate and the resin, it is optimal as an insulating component where airtightness and oil tightness are required. ○Excellent mechanical strength It is manufactured using a method that does not compromise the strength of glass fibers, resulting in excellent mechanical strength. ○Usable at extremely low temperatures It can also be used in liquid helium.

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Attention on new materials! Paper-based phenolic resin laminate (thick board)

High strength and insulation! More affordable than glass and carbon fiber FRP. Perfect for material reconsideration!

"Paper-based phenolic resin laminate" is a resin material (FRP) that has been sold for over 80 years at Rishou Industry, maintaining strength and insulation properties while keeping costs low. It can be produced at a lower cost than FRP made from glass fibers or carbon fibers. Additionally, it excels in machinability, allowing for significant cost reductions when used as an alternative material. ■ High resistance to solvents and oils, and strong against bending ■ Excellent machinability ■ Heat resistance up to 130℃ ■ High insulation performance (44,000 volts per 1.0 mm) *For more details, please download the catalog or contact us.

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Thermosetting resin laminated pipe

It is a plastic pipe with excellent insulation properties, heat resistance, mechanical strength, and chemical resistance.

We are utilizing a wide range of applications, including insulating tubes for transformers and tap changers, rollers, bearings, and winding cores.

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Glass cloth substrate epoxy resin laminate ES-3751SH

European railway vehicle fire resistance standard compliant product. Passes hazard level 3 under EN 45545-2 / R23.

EN 45545-2 is a standard that summarizes the requirements for the combustion behavior of parts and materials used in European railway vehicles. Depending on the application, there are requirements ranging from R1 to R26, and hazard levels (HL1 to HL3) are defined based on the operation and structural classification of the vehicles. The Risholite glass fabric-based epoxy resin laminate ES-3751SH is composed of resin and glass fabric that minimizes smoke generation. As a result of tests conducted based on EN 45545-2 / R23 (for exterior applications), it was found to meet the criteria for hazard level 3 (HL3) across all combustion behavior classifications.

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