Ryobi Limited

Aisan Industry Co., Ltd.

Aoki Science Institute Co., Ltd.

Kotobuki Kinzoku Kogyo Co., Ltd.

Ryusuke Izawa

Masayuki Kito

Akihiro Hayashi

Masayuki Harada

Toshiaki Shimizu

Masanao Kobayashi

Hiroaki Komatsubara

Hirobumi Ohira

Keigo Yorioka

Koji Togawa

Hisaharu Aoki

Yuichi Yamazaki

Naomi Nishi

Toru Komazaki

Izumi Murashima

Hideki Furukawa

Mitsuyoshi Yokoi

An oil type release agent is provided, containing 70 to 98 parts by weight of solvents having dynamic viscosity of 2 to 10 mm/s at 40&#xb0; C. and a flash point in the range of 70 to 170&#xb0; C., 1 to 10 parts by weight of high viscosity mineral oils and/or synthetic oils having dynamic viscosity of 100 mm/s or higher at 40&#xb0; C., 15 parts by weight or less of a silicone oil having dynamic viscosity of 150 mm/s or higher at 40&#xb0; C., and 1 to 5 parts by weight of additives having a lubricating function. The flash point of the agent is in the range of 70 to 170&#xb0; C., and the dynamic viscosity of the agent is 2 to 30 mm/s or higher at 40&#xb0; C.

Oil type release agent for die casting method for getting solvent mixing ratio, casting method, and spray unit

The invention provides an oil type release agent die casting containing 70 to 98 parts by weight of a solvent having a specified flash point, 1 to 10 parts by weight of mineral oils and/or synthetic oils having a high viscosity, 15 parts by weight or less of a silicone oil, and 1 to 5 parts by weight of additives having a lubricating function, wherein the flash point of the agent is in the range of 70 to 170&#xb0; C., and dynamic viscosity of the agent is 2 to 30 mm/s or higher at 40&#xb0; C., and a method for setting a mixing ratio of the solvent, a casting method, and a spraying unit for the case of using the release agent.

Oil type release agent for die casting method for setting solvent mixing ratio, casting method, and spray unit

A method for producing a cylinder block capable of providing sufficient bonding between the cylinder liner and a block body. The cylinder block producing method includes an inner peripheral surface roughening process, outer peripheral surface roughening process, adiabatic particle adhesion process, and melt bonding process. In the inner peripheral surface roughening process, shot blasting is performed to the inner surface of the cylinder liner. In the outer peripheral surface roughening process, semi-spherical dimples are formed on the outer surface of the cylinder liner by sinking the shot balls by their semi-spherical amount into the liner by means of shot blasting. Zn balls and stainless beads each having diameter of 0.4 mm, or Zn balls having diameter of 0.8 mm are used as the shot balls. In the adiabatic particle adhesion process, BN particles are adhered to the inner surface of the cylinder liner. In the melt-bonding process, a molten metal is filled around the cylinder liner to form a cylinder block while the liner is held by a metal mold and while a part of the metal mold is abutted to the inner surface of the cylinder liner.

Method for producing cylinder block

Growing community of inventors

Fuchu, Japan

Ryusuke Izawa