Nhk Spring Co., Ltd.

Nippon Soda Co., Ltd.

Masato Sugawara

Yutaka Wakabayashi

Ken Takahashi

Seiji Sasaoka

Takao Morikawa

Akira Tange

Hideki Okada

Shigeru Saito

Hiroshi Koyama

Hiroshi Mizukami

Michiya Masuda

Jun Umeno

Takahiro Nakamura

Kaoru Muto

Akihiro Katsuya

Isao Sumiyoshi

Masato Inaba

Hiroshi Machida

Koichi Tamatsu

Shigeru Saitoh

Shogo Mori

Kaoru Mutoh

Fumiaki Kimura

Masaichi Furuta

Shigenori Yabuta

Yasuaki Tsuji

Hiroshi Masuya

Masayoshi Kawai

A stabilizer comprises a main bar that is elastically deformable, a pair of connecting plates respectively configured to be connected to a pair of left and right suspension apparatuses, and transition sections connecting both end portions of the main bar and the pair of connecting plates, a size of one transition section of the transition sections in a plate thickness direction of one connecting plate of the connecting plates gradually decreasing from the main bar toward the connecting plate, wherein the minimum value of the Vickers hardness of the transition section is 200 HV or more.

Stabilizer and method of manufacturing same

A method for manufacturing a stabilizer, the stabilizer including a main body bar that is elastically deformable, and a pair of connecting plates that are separately connected to a pair of left and right suspension devices, the method including a forging step of forming the connecting plate by forging both end portions of a material tube, in which in the forging step, both end portions of the material tube are crushed in a radial direction to be formed into the connecting plate in a state where a sealing metal plate heated to a temperature equal to or higher than a melting point is disposed inside both end portions of the material tube heated to a temperature lower than the melting point.

Method for manufacturing stabilizer

A terminal sealed portion is formed on an end portion of a hollow rod made of steel. An enclosed space is formed on an inner side of the hollow rod. At an end of the enclosed space, a terminal gap is formed. A volatile powdered rust inhibitor is supplied in the enclosed space. As the volatile powdered rust inhibitor is vaporized, the enclosed space is turned into a rust-inhibiting atmosphere. As the vaporized component of the volatile powdered rust inhibitor is adsorbed to an inner surface of the enclosed space, an inner surface rust-inhibiting film is formed. The vaporized component also enters inside the terminal gap, and forms a terminal rust-inhibiting film.

Hollow spring member and manufacturing method therefor

A hollow stabilizer has a tubular shape and is provided with a torsion section that is provided to a vehicle and that extends in the vehicle width direction; an arm section that extends in the front-back direction of the vehicle; and bent sections that connect the torsion section and the arm section. The hardness of the outer surface of the bent inner sides of the bent sections of the hollow stabilizer is 70% or more with respect to the hardness of the outer surface of the arm section.

Hollow stabilizer

A method of manufacturing a hollow stabilizer includes a forming step of subjecting an element pipe to a bending process, to form a product shape including bent portions, and a quenching step of quenching the element pipe subjected to the bending process. In the quenching step, a cooling process is performed by immersing the element pipe made of steel in coolant and by spraying the coolant to an outer surface of the bent portion.

Method for producing hollow stabilizer

The reflection portion of the reflection member is moved along the inner surface in the hole of the pipe from the entrance opening of the hole of the pipe to the exit opening of the hole thereof. In this case, the reflection portion is guided by the guide portion provided at both sides of the reflection portion. The shots, which are projected toward the inner surface in the hole of the pipe, reach the reflection portion through the holes of the guide portion of the entrance side, and they are reflected toward the inner surface in the hole of the pipe. Since the shots can be reflected toward the inner surface inside in the hole of the pipe, the tendency that shots may be moved toward the inner surface outside in the hole of the curved portion can be small.

Reflection member for shot peening and shot peening method having the same

In a method of manufacturing a hollow stabilizer, a pipe compressing step of compressing an electroseamed pipe in a temperature range of a hot state or a warm state so as to make a rate of a thickness with respect to an outer diameter between 18 and 35% is performed, and a forming step of forming the compressed electroseamed pipe in a stabilizer shape in a cold state is executed. Next, a step of applying a heat treatment to a half-finished stabilizer is performed, a shot peening step of impacting a shot on the half-finished stabilizer is performed, and a step of coating the half-finished stabilizer is performed.

Hollow stabilizer and method of manufacturing the same

The present invention is directed to rumen-bypass preparations for ruminants composed of a core preparation and a coating layer applied thereonto, characterized in that the core preparation contains from 50 to 90% by weight, based on the core preparation, of a biologically-active substance, that the active substance has been dispersed in from 10 to 50% by weight of a protective substance, and that the coating layer applied onto the core preparation is made of from at least one material selected among linear and branched, saturated and unsaturated aliphatic C,monocarboxylates, polymers insoluble in the neutral region but soluble in the acidic region, and zein. Use of protective substances originating in natural substances and being harmless to the ecological system makes it possible to obtain rumen-bypass preparations which contain biologically-active substances at a high concentration and are advantageous economically.

Feed additives for ruminants

Feed additive for ruminants

Feed additive for ruminants suitable for use in a feed pellet and feed

Growing community of inventors

Yokohama, Japan

Masato Sugawara