APPARATUS FOR PREPARING HEAT INSULATING DUCT

APPARATUS FOR PREPARING HEAT INSULATING DUCT

PURPOSE:To prevent the deflection of heat insulating duct when an unhardened heat insulating duct is heated in a hardening furnace for the purpose of hardening. CONSTITUTION:The title apparatus is provided with a hot air table 20 at a lower part of a hardening furnace which is located at a downstrea...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: BANDOU HAJIME, OKUI YOSHIYUKI
Format: Patent
Sprache:eng
Schlagworte:
AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING
BLASTING
HEATING
LIGHTING
MECHANICAL ENGINEERING
RANGES
VENTILATING
WEAPONS
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Beschreibung
Zusammenfassung:PURPOSE:To prevent the deflection of heat insulating duct when an unhardened heat insulating duct is heated in a hardening furnace for the purpose of hardening. CONSTITUTION:The title apparatus is provided with a hot air table 20 at a lower part of a hardening furnace which is located at a downstream side of a throttling pipe 16 in the hardening furnace 10. Hot air is fed to the interior of the hot air table 20 and a tubular body 9 is kept suspended by injecting the hot air through injection holes. Thermosetting resin impregnated into glass wool mat which constitutes the tubular body 9 is set by the heat of the hot air and the heat within the hardening furnace 10, and heat insulating duct is obtained.