赤川硬質硝子工業所 List of Products and Services

Akagawa Hard Glass Co., Ltd. is a glass factory that consistently performs raw material blending, melting, and molding. We process melted glass into granules, valves, pipes, rods, and through press molding, as well as into block shapes. Based on these capabilities, we excel in the production of specialized glass in small lots and various types, striving to meet our customers' diverse needs. 【Main Technical Overview】 ■ Creation and research and development of special glass products not available on the market ■ Various glass molding techniques [blow, press, tube] ■ Chemical-resistant glass [various shaped glass components and cullet production] ■ Heat-resistant glass [100-120°C heat shock resistance and product design] ■ Production of special and high-functionality glass - Melting using platinum crucibles, melting using quartz crucibles, prototype melting for glass research - Small lot test melting using various clay crucibles *For more details, please contact us.

Akagawa Hard Glass Co., Ltd. is a glass factory that consistently performs raw material blending, melting, and molding. We excel in the production of small lots and a wide variety of specialized glass, and we strive to meet our customers' diverse needs. Our various products are adopted in many fields of cutting-edge science and technology, and we take great pride and joy in this aspect. We hope to contribute to your business with our products. 【Overview of Main Products】 ■ Tubular glass ■ Glass for electronic components ■ Crystallized glass ■ Ultraviolet transmitting glass, infrared absorbing glass ■ Glass for lighting, special glass for electrical use, and various other types of glass *For more details, please contact us.

"Porous glass coated with graphene" is a porous glass that has been silylated on its surface and then carbon-coated using heated organic gas (chemical vapor deposition method; CVD). This method allows for the complete coverage of the pore surfaces of the porous glass with a graphene film. In the case of a flat sample, a continuous graphene film is formed from the outer surface to the interior, allowing electricity to flow between the top and bottom surfaces of the glass plate. Additionally, the graphene film is thin, and the holes in the pores remain intact, ensuring that the top and bottom surfaces of the glass plate maintain their breathability. [Features] ■ Improved alkali resistance ■ Conductivity is imparted ■ Retains the original pore structure of the nanoporous glass ■ Excellent chemical resistance ■ Porous electrode material *For more details, please feel free to contact us.

The "Glass Terminology Collection" is a catalog that compiles terms related to glass from Akagawa Hard Glass Co., Ltd., which provides better glass products. It lists terms related to the glass manufacturing process and properties in alphabetical order. We hope it will be useful to everyone, so please make use of it. [Terms Included] ■ A Section - Abbe Number - Arrhenius Equation ■ K Section - Numerical Aperture - Easy-to-Cut Glass, etc. *For more details, please refer to the catalog or feel free to contact us.

"Porous glass" is created by separating uniform glass into multiple phases through heat treatment and dissolving only the soluble phase with chemicals, resulting in the formation of numerous pores. It has a high adsorption capacity for molecules and ions such as gases and liquids, and by changing the manufacturing conditions, it is possible to create extremely uniform pores. Additionally, the pore size can be altered, making it suitable for use as a separation filter. Akagawa Hard Glass Industry offers samples of "porous glass." Please feel free to contact us if you need any. [Features] ■ Porous glass with numerous pores ■ High adsorption capacity for molecules and ions such as gases and liquids ■ Ability to create uniform pores ■ Usable as a separation filter ■ Sample orders start from 5 pieces or more For more details, please refer to the catalog or feel free to contact us.

By using partially porous glass, the possibilities of what can be achieved expand. *For more details, please contact us.*

At our company, we consistently carry out the processes of raw material blending, melting, and molding, and we would like to share some voices from the artisans (technicians) who excel in these areas. - Teamwork in Hand-Blown Glass (Excerpt) Glass will never be in exactly the same state as it was yesterday due to the temperature of the furnace and the way the molten glass is rolled. I have been in this field for 37 years, and there is never a point where I can say, "This is good enough." Creating glass is a lifelong learning experience. - Individual Skill Shines in Blown Glass (Excerpt) Hot glass is gooey and softer than taffy. I always think how amazing the skilled technique is to wrap that glass material around a rod and transform it into a glass rod of uniform thickness. Only the meticulously selected pieces, with no room for even a slight deviation, become products. You can view the full text on our company website. We encourage you to read it. *For more details, please refer to the PDF document or feel free to contact us.

Our company is a glass factory that consistently performs raw material formulation, melting, and molding. We process molten glass into granules, valves, pipes, rods, and perform press molding, among other forms. Among these, the production of glass tubes with customizable inner and outer diameters is our strength. One person spins a rod with molten glass while stretching the glass into beads, while another checks the dimensions with a fan. Additionally, we accommodate small lot production that cannot be done by machines, custom manufacturing for prototype requests, and high-temperature glass production around 1600°C. 【Our Strengths】 ■ Production of glass tubes with customizable inner and outer diameters ■ Small lot production that cannot be done by machines ■ Custom manufacturing for prototype requests ■ High-temperature glass production around 1600°C *For more details, please refer to the PDF document or feel free to contact us.

Our company possesses a variety of equipment. For example, the "single furnace" allows for the production of tube glass, blown glass, and crushed glass by heating each cat-shaped crucible individually to perform glass melting. The "redraw device" heats the parent material of tube glass to temperatures between 600°C and 900°C, enabling the production of thin tube glass. In addition, we also have a "V-type mixer" and various measuring devices. 【Equipment Owned (Excerpt)】 ■ Single Furnace ■ Various Test Furnaces ■ Redraw Device ■ Glass Cutting Machine / Glass Polishing Machine ■ V-Type Mixer *For more details, please refer to the PDF document or feel free to contact us.

We offer samples of porous glass that allows air to pass through!? A 200nm thick SiO2 film is vacuum deposited on one side of a 20mm square, 1mm thick porous glass. The samples with square SiO2 films can be ordered starting from a minimum lot of one piece. We have a limited number of paid samples available. Please feel free to contact us if you are interested. 【Sample Specifications (Partial)】 ■ Pore Size: 4nm ■ Size: 20mm□ x Thickness 1mm ■ SiO2 Film Thickness: 200nm ■ Surface Treatment: Mirror Polishing *For more details, please refer to the PDF document or feel free to contact us.

A character from Akagawa Hard Glass Industry Co., Ltd. has been born, and we would like to introduce it. The character's name is "red dipper." It finds and scoops up your glass from the sea of infinite glass and glass materials. Our company has over 40 years of experience in the production of "porous glass," which has the property of allowing gases to pass through, and it is used both domestically and internationally. Please feel free to consult us when you need our services. 【Applications of Porous Glass】 ■ Partial Porousization (Porous glass can be applied only to specific areas) ■ Superfluid Film Flow Containers (Porous the outer surface of the glass) ■ Porous Glass Coated with Graphene (Imparts conductivity while maintaining breathability) *For more details, please refer to the PDF materials or feel free to contact us.