Komatsu Matere’s Cabkoma receives JIS certification
The Cabkoma strand rod, a carbon fibre composite material jointly developed by Komatsu Matere and Kanazawa Institute of Technology, was certified by JIS (Japanese Industrial Standards) as a strand for seismic reinforcement. This is the first carbon fibre composite material in Japan to be certified as a seismic reinforcement material. The company believes that the use of these specific materials will expand due to the JIS certification and aims to acquire the certification for its seismic reinforcement method in 2020.
The Cabkoma strand rod is a rope-shaped material that combines strength and flexibility due to the use of braiding (kumi-himo) and carbon fibre technology. Among its qualities, this rod preserves wood material from damage and corrosion.
Komatsu Matere considers this certification as an excellent seismic retrofit for wooden houses due to the characteristics of Cabkoma strand rods. The company is also considering using other materials designated under the Building Standards Law.
Komatsu and its partners – Kanazawa Institute of Technology and Nagase ChemteX Corporporation.
Seismic resistance with carbon fibre at Mitsubishi Chemical’s Toyama office
Mitsubishi Chemical’s Toyama Plant (Toyama City Kaigan-dori) finished the seismic reinforcement work for the welfare facilities on the premises and held a completion ceremony at the site. A rope-like seismic reinforcement was used, and a construction method that achieved both design and strength was adopted.
For earthquake resistance, the company used the Cabkoma carbon fibre composite material developed by Komatsu Matere based on Mitsubishi Chemical’s Pyrofil carbon fibre. The rope-shaped material was stretched around a wall of about 6.3 metres height and 22 metres width. Although it costs about the same as a traditional steel frame building method, construction is faster and the material can be installed in a small space. The welfare facility faces the nearby prefectural road and is promoted as an example of carbon fibre utilization.
More information: www.m-chemical.co.jp – Read the original article
Scarf sanding method for CFRP damage repair
JAXA (Japan Aerospace Exploration Agency) and Shinmei jointly developed an automatic scarf sanding machine using JAXA’s automated scarf sanding technology. This is one of the outcomes of the 2016 JAXA Aerospace technology Innovation Challenge.
The machine has 10 legs that automatically sand scarf profiles. There is no need to enter any processing shape data or programming. JAXA is currently improving the machine based on users’ suggestions, such as lightening the body from 67kg to 40kg, or reinforcing the cutting parts’ durability. The Japanese agency plans to integrate these modifications and to implement them by 2021.
More information: global.jaxa.jp – www.shinmei.co.jp – Read the original article
Phoenix Electric develops a CFRP surface treatment unit
Since it is difficult to form a complex shape with CFRP, CFRP plates are commonly manufactured by bonding with an adhesive when three-dimensional objects or ribs are required. In such a case, the problem is that the presence of a foreign substance such as a release agent attached to the CFRP surface can lower the bonding force.
For this reason, manual sandpaper and sandblast processes are currently the main method used to remove foreign substances. Phoenix Electric conducted research on the treatment of CFRP surfaces with a carbon dioxide laser or YaG laser. The company uses multiple semiconductor lasers and optical design technology as a CFRP surface treatment technology to solve practical problems encountered in the past, so the treatment can be used in a clean environment with high reliability and does not require large-scale environmental equipment. A CFRP surface treatment unit was developed that makes it possible to solve problems and to achieve automation and unmanned operation. It also contributes to reduced installation and processing costs.
Phoenix Electric is preparing for mass production of the light source unit developed. They continue the development for higher output and functionality in order to offer surface treatment equipment targeting materials other than CFRP.
More information: www.phoenix-elec.co.jp – Read the original article