Nippon Sublance Probe Engineering Ltd.

Koito Manufacturing Company, Ltd.

Kimura Foundry Co., Ltd.

Yasushi Kubota

Mayuki Morinaka

Hidetaka Hiraoka

Toshihiko Kurebayashi

Toshitake Kanno

Makoto Nawa

Jun Iwahashi

Eiichi Sahara

Tsuneharu Sugie

A position measuring laser apparatus includes first and second laser transmitter-receivers and a position measure. The laser transmitter-receiver includes a laser beam emitter for emitting a laser beam, and a laser beam receiver for receiving a laser beam resulting from the emitted laser beam reflected from a reference reflecting mirror. An optical axis of the laser transmitter-receiver is oriented at a required angle toward a moving body. The position of the moving body with respect to the reference reflecting mirror is measured based on a beam receiving signal of the laser beam obtained by the laser transmitter-receiver. The position measure compares a drive signal for driving the laser beam emitter with a beam receiving signal generated by the laser beam receiver to measure the position of the moving body based on the beam receiving signal when the drive signal and the beam receiving signal coincide with each other.

Position measuring laser apparatus

A method for judging the properties of molten cast iron which consists of connecting three sampling vessels with an apparatus for obtaining a cooling curve of molten cast iron, measuring a cementite eutectic temperature (TEC) of cast iron poured to the first sampling vessel to which a chilling agent is contained, measuring a eutectic freezing temperature change of molten cast iron poured to the second sampling vessel being free of any additive, measuring a graphite eutectic temperature (TEG) of molten cast iron poured to the third sampling vessel, and inspecting a relation between the cementite eutectic temperature (TEC) and the graphite eutectic temperature (TEG) within the range of the eutectic freezing temperature change of molten cast iron.

Method for judging the properties of molten cast iron

Methods for inspecting the content of structure modifying additives in the molten bath of cast iron and chilling tendency of flaky graphite cast iron by means of a thermal analyzing test and a sampling vessel to be used therefor. The method consists of the steps for: obtaining a first cooling curve of the molten bath of cast iron using a first sampling vessel, obtaining a second cooling curve of the molten bath using a second sampling vessel in which small amounts of tellurium are contained, and comparing the first cooling curve with the second cooling curve.

Methods for inspecting the content of structure modifying additives in

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Shizuoka, Japan

Yasushi Kubota