COMBINED DEVICE FOR HEATING BILLET FOR FORGING

Title:

COMBINED DEVICE FOR HEATING BILLET FOR FORGING

Document Type and Number:

Japanese Patent JPH10244342

Kind Code:

A

Abstract:

To provide a combined heating device having high durability and excellent energy efficiency by improving the combined heating device combining a combustion type indirect heating furnace using a hollow ceramic tube and an induction heating furnace.

The billet for forging is preheated to e.g. 800°C in the combustion type indirect heating furnace 1 and sent to the induction heating furnace 3 by a relaying means 2 provided with a metallic conveyor, and in the induction heating furnace 3, the preheated billet for forging is heated to the last forging temp., e.g. 1200°C, by electromagnetic induction action. The combustion type indirect heating furnace 1 uses the hollow ceramic tube, and the induction heating furnace 3 is constituted by parallel connecting transistors.

Inventors:

ASAHI SHIGEMITSU
ASAHI SUMIO
ASAHI JUNJI
UCHINO SHINJI
ASABE SHUICHI

Application Number:

JP4657697A

Publication Date:

September 14, 1998

Filing Date:

February 28, 1997

Export Citation:

Click for automatic bibliography generation Help

Assignee:

ASAHI FUOOJI KK
ASAHI KOGYO CO LTD
UCHINO KK
ASABE KOGYO KK

International Classes:

B21J1/06; B21J17/00; C21D1/52; C21D9/00; F27B9/12; (IPC1-7): B21J17/00; B21J1/06; C21D1/52; C21D9/00; F27B9/12

Attorney, Agent or Firm:

Katsunori Sugimoto (1 outside)

Previous Patent: STRAND MANUFACTURING DEVICE

Next Patent: MANUFACTURE OF HOLLOW MATERIAL