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Hopper and Doctor Blade Assembly for Continuous Casting Apparatus

IP.com Disclosure Number: IPCOM000086675D
Original Publication Date: 1976-Oct-01
Included in the Prior Art Database: 2005-Mar-03
Document File: 2 page(s) / 38K

Publishing Venue

IBM

Related People

Gasparri, A: AUTHOR [+5]

Abstract

In the casting of ceramic green sheets, it is important that the product be uniformly and dimensionally controlled as to thickness and width. This is accomplished through control of the doctor-blade height and by virtue of the structural configuration.

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Hopper and Doctor Blade Assembly for Continuous Casting Apparatus

In the casting of ceramic green sheets, it is important that the product be uniformly and dimensionally controlled as to thickness and width. This is accomplished through control of the doctor-blade height and by virtue of the structural configuration.

Overall assembly 14 (Fig. 1) has a detachable doctor-blade hopper assembly 20 and fixed doctor-blade adjustment and structural support assembly 24. Both assemblies are joined together at the interface 22 and locked by means of the attachment knob 28.

Liquid ceramic enters the detachable hopper assembly 20 and is contained by the TEFLON* seal 12. Drum 10 carries and drives the MYLAR* belt 16 on which the liquid ceramic layer 18 is deposited and dimensionally defined by the doctor-blade 26 (Fig. 2).

The doctor-blade 26 is biased, in an upward direction, by a doctor-blade cantilevered spring 30 attached to the hopper assembly 20, and extends the entire width of the assembly, thus forming a part of the enclosure for the slip.

Doctor-blade height adjustment is controlled by means of the height adjustment knob 32. The adjustment knob 32 provides torquing action to the counter-threaded shaft 34, imparting horizontal movement to the inclined planes 36 which in turn impart vertical motion to the guide pins 38 and hence vertical adjustment of the doctor blade 26. Independent adjustment for doctor blade leveling is provided by the blade-leveling adjustment and...