Kabushiki Kaisha Kobe Seiko Sho

Yoshitaka Nimura

Katsumi Ogawa

Masahiro Tomita

Ryosaku Kadowaki

Toshiaki Okumura

Satoshi Shimamoto

Takao Ekimoto

Yoshiyuki Kamikawa

Kazuyoshi Nenbai

Hideki Yokoyama

A heating and extruding method for a bulk preform of a fiber reinforced composite material, including a stabbing machine for forming an unpenetrated hole in the bulk preform, a heating machine connected to the stabbing machine for heating the bulk preform by a nitrogen gas, and an extruding machine connected to the heating machine for heating and compressing the bulk preform heated by the heating machine to discharge a predetermined amount of the bulk preform, wherein at least the heating machine to the extruding machine has a sealing structure sealing a nitrogen gas therein. An extruding lip of the extruding machine has a thickness restriction plate and a width restriction plate for respectively adjusting an extrusion thickness and an extrusion width of the melted composite material. Accordingly, oxidation and degradation of resin composing the fiber reinforced composite material can be prevented. Further, a shape of the melted composite material to be extruded can be suited to a desired shape of a molded part to be obtained.

Heating and extruding method and device for bulk preform

Heating and extruding method for bulk preform

A method for detecting a molten metal surface level in a casting mold, comprises inserting an electrode in a slag constituting a layer under a flux floating on the surface of the molten metal, detecting a change of electric resistance due to a temperature gradient of the place at which the electrode is inserted, displacing the electrode to bring the detected value to be always constant within a range of from 5 to 50 .OMEGA., and measuring the degree of the displacement of the electrode thereby detecting the surface level of the molten level. An apparatus for carrying out the method is also disclosed.

Method and apparatus for detecting molten metal surface level in a mold

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Kobe, Japan

Yoshitaka Nimura