Kabushiki Kaisha Kobe Seiko Sho

Nihon Tokushu Toryo Co., Ltd.

Nissin Unyu Kogyo Co., Ltd.

Toshihiko Sasaki

Akio Sugimoto

Toshimitsu Tanaka

Kenji Iwai

Kazuhisa Fujisawa

Ichiro Yamagiwa

Mamoru Taniuchi

Isamu Ueki

Kenshi Maekawa

Tadashi Hatayama

Reiji Sanuki

Hiroshi Kawashima

Kazuo Akagi

Yasuo Nanri

Manabu Shibata

Tadashi Aiura

Naofumi Itano

Koji Takahashi

Hiromichi Okumura

Toshiaki Yasumoto

Katsuhiko Inoue

There is provided an electrolytic integrated polishing apparatus which enables high precision polishing of the internal surface of a long sized cylindrical workpiece such as a metallic tube. The apparatus includes a work supporting unitfor disposing the cylindrical workpiece W, so that the axial center of the cylindrical portion is aligned with the vertical direction, a rotation shaftsupported downward along the vertical direction and free-rotatably supported in an external tubewhich is freely movable along the vertical direction, a tool electrodeincluding a grindstone directed to radial directions, attached to the tip of the rotation shaftand a plastic tubewound around the external surface of the external tubefor pressurization.

Method and apparatus for polishing inner an internal surface of an aluminum extrusion hollow shape

A truss type extruded aluminum section is formed of a pair of planar plates and ribs, wherein hollow portions are formed within said section by the ribs and the planar plates. Vibration-damping resin is provided on the inner surfaces of hollow portions, and particularly on the inner surface of the planar plate and on a single surface of the inclined rib. With this arrangement, the vibration energy bending the planar plate and the rib is converted into a heat energy. In the case of manufacturing such truss type extruded aluminum vibration-damping section, for making easy the insertion of the vibration-damping resin in the hollow portion, the vibration-damping resin is stuck on a plastic film to form a long planar body. The plastic film serves as a cover or an adhesive. Moreover, in the case of directly inserting the vibration-damping resin sheet, the vibration-damping resin sheet is subjected to embossing on the adhesive-bonding side for allowing air to escape. Additionally, in the case using an age-hardening type aluminum alloy, the adhesive-bonding for the vibration-damping resin by heating is performed along with the heat treatment for age-hardening.

Method of manufacturing and using vibration-damping material

The present invention relates to a heat-bonded type vibration-damping resin for a structural member which contains in view of a preferable blending rate asphalt, synthetic rubber, petroleum resin and filler material, and further a heat-bonded type vibration-damping resin for a structural member which contains in view of a preferable blending rate asphalt, filler material, blowing agent. In addition, its basic concept consists in a configuration in which the vibration-damping resin is formed into a sheet and arranged at the surface of the metallic structure used at a place where vibration and noise should be prevented so as to form the vibration-damping structure and a method for manufacturing the vibration-damping structure. The vibration-damping resin can be easily mounted on the surface of the metallic structure having an elongated shape, bonded to it by heating and has a workability in which the mounting work to the metallic plate may be facilitated. In addition, thermoplastic resin and the like can be arranged between the metallic plate and the vibration-damping resin.

Heat bonded type vibration-damping resin for structural member

A truss type extruded aluminum section (1) is formed of a pair of planar plates (2)(3) and ribs (4)(5)(6), wherein hollow portions (7)(8)(9) are formed within the section (1) by the ribs (4)(5)(6) and the planar plates (2)(3). Vibration-damping resin is provided on the inner surfaces of hollow portions (7)(8)(9), and particularly on the inner surface of the planar plate (3) and on a single surface of the inclined rib (4). With this arrangement, the vibration energy bending the planar plate (3) and the rib (4) is converted into a heat energy. In the case of manufacturing such truss type extruded aluminum vibration-damping section (1), for making easy the insertion of the vibration-damping resin in the hollow portion, the vibration-damping resin is stuck on a plastic film (11) to form a long planar body. The plastic film (11) serves as a cover or an adhesive. Moreover, in the case of directly inserting the vibration-damping resin sheet (14), the vibration-damping resin sheet (14) is subjected to embossing on the adhesive-bonding side for allowing air to escape. Additionally, in the case using an age-hardening type aluminum alloy, the adhesive-bonding for the vibration-damping resin by heating is performed along with the heat treatment for age-hardening.

Vibration-damping material, its manufacturing method, and structural

Growing community of inventors

Shimonoseki, Japan

Toshihiko Sasaki