レイホー製作所 List of Products and Services

In the semiconductor field, high-purity processed graphite materials are required, and components for silicon single crystal pulling furnaces (crucibles, heaters) are sensitive to impurities. General artificial graphite itself is a material with no impurities, typically at 99.9% purity (representative value for CIP material is about 800 ppm or less). Our company also manufactures semiconductor-related components, compound semiconductor manufacturing processes, optical fibers, thermal processing susceptors, dummy wafers, and components for thin-film solar cell manufacturing equipment. [Products (excerpt)] ■ High-purity carbon heating elements ■ Crucibles for silicon pulling ■ Semiconductor manufacturing equipment fixtures ■ Carbon sputtering targets ■ Separators for solid polymer fuel cells, etc. *For more details, please refer to the PDF materials or feel free to contact us.

• Other polymer materials
• Composite Materials
• fiber

Graphite is utilized in mechanical sliding components such as bearings and piston rings, taking advantage of its heat resistance, lubricating properties, and chemical resistance. Additionally, due to its self-lubricating properties, graphite can be used in oil-free applications where contamination by oil is undesirable. Its scientific stability also makes it suitable for use with corrosive liquids. Our company is capable of producing products that enhance wear resistance and sealing properties by using composite materials that incorporate resin and metal into graphite. We can also create hard and strong sliding components using carbonaceous graphite. 【Products (excerpt)】 ■ Mechanical seal bearings for underwater pumps ■ Thrust bearings (thrust bearings) ■ Graphite sliding components for liquid compressors ■ Graphite bearings ■ Mechanical seals and seal rings *For more details, please refer to the PDF materials or feel free to contact us.

• Other polymer materials
• Composite Materials
• fiber

Graphite (carbon graphite) has low thermal expansion and self-lubricating properties, making it well-suited for carbon products used in continuous casting, such as nozzles, sliding plates, and molds. Additionally, graphite excels in heat resistance and does not wet metals, which makes it commonly used in carbon products for melting furnaces. The stirring blades used to mix molten metals are designed by calculating the streamlined flow of the metal. Mandrels and nozzles are processed with inner surface polishing to prevent any markings on the products, ensuring reliable quality. 【Products (excerpt)】 ■ Melting metal stirring rods - reaction rods ■ Stirring blades for molten metal in smelting furnaces ■ Reflecting furnace, furnace floor ■ Graphite nozzles for continuous casting ■ Carbon stoppers for continuous casting *For more details, please refer to the PDF document or feel free to contact us.

• Other polymer materials
• Composite Materials
• fiber

Many graphite (carbon graphite) materials are used in the internal components of industrial furnaces for metal heat treatment, as well as in internal components of vacuum furnaces and electric furnaces. In vacuum furnaces, there are heaters that serve as heating elements and electrode pressure control valves, while in furnaces for metal heat treatment, graphite is often used for trays that hold the metal, providing characteristics not found in metals or ceramics. Our company can propose product shapes tailored to the type, size, and shape of industrial furnaces, as well as offer VA/VE proposals. Additionally, we can flexibly respond to the high precision requirements of irregular heaters and other components. 【Products (excerpt)】 ■ Rod heaters ■ Ring heaters ■ Electrode rods ■ Furnace floor - furnace floor supports ■ Bolts and nuts *For more details, please refer to the PDF document or feel free to contact us.

• Other polymer materials
• Composite Materials
• fiber

The processing of glass products for scientific and chemical instruments is carried out almost entirely by hand. The tools required for glass processing are made from carbon due to its heat resistance and lubricating properties. Our company manufactures everything from crucibles for melting materials such as Pyrex and quartz glass to jigs and tools for products used in scientific, measuring, and semiconductor applications. We also produce two-part molds for glass. 【Products (excerpt)】 ■ Jigs for glass processing, including mouth jigs (core rods, hollow rods) ■ Carbon molds for flask glass ■ Carbon rectangular plates for glass lathes ■ Carbon round rods for glass lathes ■ Flange processing tools for glass lathes *For more details, please refer to the PDF document or feel free to contact us.

• Other polymer materials
• Composite Materials
• fiber

Graphite has the characteristic of not wetting molten metal and has good machinability, which helps to maintain dimensional accuracy. As a result, it is used in the manufacturing jigs for electronic components such as transistors and diodes, positioning jigs for lead wires and rings, as well as jigs and molds for glass bonding. Our company realizes the machining accuracy and tolerances required by customers, ensuring quality through three-dimensional measuring machines. Additionally, to reduce carbon dust generation, we also propose AC coating and other solutions. 【Products (excerpt)】 ■ Susceptors for Light Emitting Diodes (LEDs) ■ Alloy products ■ Alloy jigs ■ Stem jigs ■ Bonding jigs *For more details, please refer to the PDF document or feel free to contact us.

• Other polymer materials
• Composite Materials
• fiber

Compared to copper, graphite excels in discharge machining capabilities and is used for large discharge machining electrodes due to its lightweight. We achieve processing accuracy and tolerances that meet customer requirements, ensuring quality through three-dimensional measuring instruments. Additionally, it is possible to create products with enhanced conductivity by using composite materials that impregnate graphite with resins and metals. 【Products】 ■ Graphite electrodes for discharge machining (EDM) ■ Anode graphite electrodes for electrolysis ■ Graphite electrodes for laboratory analytical instruments ■ Carbon electrodes for discharge machining *For more details, please refer to the PDF document or feel free to contact us.

• Other polymer materials
• Composite Materials
• fiber

Utilizing the properties of graphite (carbon graphite), which has low thermal expansion, good lubricity, and high resistance to thermal shock, it is widely used in manufacturing tools for sintered metal molds and heat treatment applications. It is also possible to create products with improved heat resistance and release properties by using composite materials that incorporate resin or metal into graphite (carbon graphite). Please feel free to consult us when you need assistance. 【Products】 ■ Molds for powder metal sintering ■ Graphite products for heat treatment ■ Hearth liners for electron beam evaporation ■ Carbon crucibles with lids ■ Carbon rollers ■ Carbon plates *For more details, please refer to the PDF materials or feel free to contact us.

• Other polymer materials
• Composite Materials
• fiber

Our company specializes in the manufacturing of carbon molds for diamond tool sintering (electric furnace type, resistance furnace type, and atmosphere furnace) as well as carbon jigs and graphite molds for the production of cemented carbide tools. We also manufacture complex and high-precision dies and punches, as well as carbon molds for diamond wheels. Due to the excellent fit of our products, the amount of release agent applied is minimal, and the insertion of punches into each groove (throttle section) and the deburring process after sintering diamond chips become simpler, resulting in a reduction in our customers' working time and contributing to lower production costs. [Products] ■ Carbon molds for diamond tool sintering ■ Carbon molds for blade cutters ■ Graphite molds for shaft-mounted diamond tools ■ Graphite jigs for cemented carbide tool sintering *For more details, please refer to the PDF document or feel free to contact us.

• Other polymer materials
• Composite Materials
• fiber

Reihō Seisakusho, which processes, manufactures, and sells carbon graphite products in various fields including semiconductors, solar cells, and non-ferrous metal manufacturing equipment, is currently offering a free booklet titled "Carbon Trivia." This booklet includes explanations about carbon and graphite, as well as the differences between carbon and graphite, making it a helpful resource for understanding carbon. 【Contents】 ■ What is Carbon (= Carbon)? ■ What is Carbonization? ■ What is Graphitization? ■ What is Graphite (= Graphite)? ■ Differences between Carbonaceous and Graphitic Materials ■ Differences between Carbon and Graphite *For more details, please refer to the PDF document or feel free to contact us.

• Contract manufacturing
• Other contract services