JP2015156268A5

JP2015156268A5 -

Info

Publication number: JP2015156268A5
Application number: JP2014030139A
Authority: JP
Filing date: 2014-02-20
Publication date: 2017-02-23
Anticipated expiration: 2034-02-20

Claims

A cylindrical mold member;
A heating member disposed outside the mold member;
A gap adjusting member disposed inside the mold member so as to be in contact with the inner wall of the mold member;
A pair of press members inserted along the direction of the axis of the mold member with respect to the gap formed inside the mold member after the gap adjusting member is disposed, and the pair of press members inserted into the gap and a pair of press members for pressing the object to be burned material arranged in the firing chamber formed by the said gap adjusting member with a pair of press members,
A ceramic heater manufacturing apparatus that pressurizes the object to be fired disposed in the firing chamber with the pair of press members and heats the object to be fired with the heating member to manufacture a ceramic heater,
The ceramic heater manufacturing apparatus, wherein a thermal expansion coefficient of the gap adjusting member is larger than a thermal expansion coefficient of the mold member and a thermal expansion coefficient of the ceramic heater after firing.

The ceramic heater manufacturing apparatus according to claim 1, further comprising:
A ceramic heater manufacturing apparatus comprising a plate-shaped partition plate disposed so as to be in contact with an inner wall of the gap adjusting member and capable of adjusting a thickness.

The ceramic heater manufacturing apparatus according to claim 1 or 2,
When F is a cross-sectional area in a direction perpendicular to the axis of the region formed by the inner wall of the mold member,
A ceramic heater manufacturing apparatus, wherein a cross-sectional area of the firing chamber in a direction perpendicular to the axis is 0.32F or more and 0.57F or less.

The ceramic heater manufacturing apparatus according to any one of claims 1 to 3, further comprising:
A plurality of plate-like members having a plurality of recesses arranged in a predetermined direction out of the directions perpendicular to the axis, arranged in the firing chamber so as to overlap with the axis.
The pair of press members pressurizes the plurality of plate members in the direction of the axis,
The ceramic heater is configured such that the object to be fired disposed in a space formed between the concave portions of the two superimposed plate-like members is pressed by the pair of press members while the heating is performed. A ceramic heater manufacturing apparatus manufactured by being heated by a member.

A method for manufacturing a ceramic heater, comprising:
A heating member is arranged outside the cylindrical mold member,
A gap adjusting member having a thermal expansion coefficient larger than that of the ceramic heater and the mold member after manufacture is disposed inside the mold member so as to be in contact with the inner wall of the mold member,
A material to be fired is disposed in a space formed inside the mold member after the space adjusting member is disposed, and a pair of press members are inserted from the direction of the axis of the mold member to sandwich the material to be fired . ,
A method for manufacturing a ceramic heater, wherein the object to be fired is pressurized by the pair of press members, and the object to be fired is heated by the heating member.