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Sōka, Japan

Provided is a two-component mixing container in which a communication passage may be formed between a partition wall member and a second-component containing member without the need for a high processing precision and a high assembly precision. A columnar portion provided at the central portion of a second bottom wall portion of a partition wall member and a circular through hole provided in the central portion of a third bottom wall portion of a second-component containing member are fitted. A first communication passage and a second communication passage are communicated with each other, using a fitting surface formed between the columnar portion and the circular through hole.


Ozawa T.,Nihon University | Ozawa T.,Pentel Co. | Katoh K.,Nihon University | Maeda M.,Nihon University
Keikinzoku/Journal of Japan Institute of Light Metals | Year: 2015

Friction stir lap welding of 3003 aluminum alloy to both polycarbonate and ABS resin are investigated. The welding was implemented using a numerically controlled friction stir welder using a special FSW tool with a sub probe. Friction stir lap welding of 3003 aluminum alloy to both types of resin materials is possible at higher welding speed than metals. The macrostructures of the joints show anchored structure in which the aluminum alloy partly penetrates into the resin. Maximum tensile shear load of the joint under the welding condition of rotational speed of 1400 rpm and welding speed of 10 mm/s with 3003 aluminum alloy to polycarbonate resin shows 1275 N, and that of the joint under the welding condition of rotational speed of 1100 rpm and welding speed of 14 mm/s with 3003 aluminum alloy to ABS resin shows 834 N. They are higher values than those of the adhesive joints with the same combination. © 2015 The Japan Institute of Light Metals.


Patent
Shofu Inc. and Pentel Co. | Date: 2014-03-26

Provided is a nozzle mounting structure of a component container by which a nozzle configured to rotate between a first position and a second position may be mounted to a housing without the need for a high processing precision and a high assembly precision. A pair of shaft portions support a body with the nozzle unitarily formed therewith. The nozzle rotates between the first position and the second position. A curved convex surface provided on the body is pressed against a curved concave surface provided on a first bottom wall portion of a housing by a pressing force imparted from a support portion.


Patent
Shofu Inc. and Pentel Co. | Date: 2014-03-26

Provided is a two-component mixing container in which a piston member may be capable of a rotation motion operation and a linear motion operation without the need for a complex guide groove. Two or more spring structure portions are provided at the piston member. The two or more spring structure portions impart a pressing force on an inner wall surface of the third cylindrical portion. Two or more fitting grooves are formed in the third cylindrical portion. In this fitting state, the piston member and a second-component containing member rotate together without contact portions getting out of the fitting grooves. When a force of a predetermined level or higher toward a third bottom wall portion is applied to an operating rod portion with a second-component containing chamber and a mixing chamber being communicable with each other, the contact portions get out of the fitting grooves.


Wake H.,Pentel Co. | Wake H.,Yokogawa Electric Corporation | Takimoto T.,Pentel Co. | Takayanagi H.,Pentel Co. | And 7 more authors.
Journal of Chemical Engineering of Japan | Year: 2010

We have developed an electrochemical antibiofouling system for plate heat exchangers that employs heat exchange plates as the electrodes. A field experiment was performed using plates made of titanium or Pt/IrO2- coated titanium. Iron bar and silver-silver chloride electrode were set inside of the heat exchanger, and used as a counter and reference electrode, respectively. The reactive current reached equilibrium above seawater flow at 1.0m3 h-1, and a uniform potential distribution was observed. Electrochemical antibiofouling experiments were performed using seawater as the secondary cooling water, which was pumped through a strainer into the plate heat exchanger at a flow rate of 1.66m3 h-1. Organism's attachment on the heat exchange plates was prevented for over 1.5 years by the electrochemical treatment. © 2010 The Society of Chemical Engineers, Japan.

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