Mitsubishi Materials Corporation

Hiroshi Miyata

Yoshio Chiba

Yoshirou Kuromitsu

Takeshi Kitahara

Hiroshi Tonomura

Hiroya Ishizuka

Tsutomu Oka

Osami Noguchi

Osamai Noguchi

Minoru Nakane

A power element mounting substrate including a circuit layer brazed to a surface of a ceramic plate, and a power element soldered to a front surface of the circuit layer, wherein the circuit layer is constituted using an Al alloy with an average purity of more than or equal to 98.0 wt % and less than or equal to 99.9 wt %, Fe concentration of the circuit layer at a side of a surface to be brazed to the ceramic plate is less than 0.1 wt %, and Fe concentration of the circuit layer at a side of the surface opposite to the surface to be brazed is more than or equal to 0.1 wt %.

Power element mounting substrate, method of manufacturing the same, power element mounting unit, method of manufacturing the same, and power module

A fillet welding apparatus for fillet welding on heads of valves for internal combustion engines, such apparatus including a valve blank stock storage station, a welding torch for fillet welding on valve heads of each valve blank, and feed apparatus for engaging and feeding valve blanks from the stock storage station to the welding torch and from the fillet welding torch to a product valve storage station, the feed apparatus including means for counting and feeding selected of the counted valves to a testing station.

Apparatus for applying hard facing to valve

A hard faced apparatus for applying hard facing to valves including a welding torch for performing hard facing on a valve head of each of valve blanks to be hard faced, a valve blank holding member for holding the valve blank in an oblique position such that the valve head of the valve blank faces the welding torch, and for rotating the valve blank about its axis, and valve transfer apparatus for transferring the valve blank to the valve blank holding member. The valve blank holding member includes valve attaching/positioning apparatus for attaching the valve blank while positioning an axis of the valve blank to be substantially aligned with an axis rotation of the valve blank holding member. Preferably, the valve attaching/positioning apparatus includes a support member formed in its distal end with a V-shaped groove to support the valve blank in an oblique position, axial moving apparatus for moving the support member in the axial direction of the valve blank, and radial moving apparatus for moving the support member in the radial direction of the valve blank.

Hard facing apparatus for applying hard facing to valves

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Okegawa, Japan

Hiroshi Miyata