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Title: Process for making large size cast monolithic refractory repair modules suitable for use in a coke oven repair

Patent ·
OSTI ID:6431290

A process is described for making a large size cast monolithic refractory repair module from a refractory mix, the large size module having high dimensional stability, good compressive loading, and good thermal shock resistance in a range of 0 to 2,850 degrees Fahrenheit; comprising the following steps: selecting a refractory mix which, when prepared and suitably cast, produces small size structures having characteristics of high dimensional stability, good compressive loading, and good thermal shock resistance in a range of 0 to 2,850 degrees Fahrenheit; mixing the refractory mix to uniformity with 0.96 ounces of water per pound of refractory mix plus or minus 10% to form a mixed material of a desired wetness; pouring the mixed material into a large size mold until the mold is filled; vibrating the mold and the mixed material within it; letting the mixed material initially set into a molded material; and firing the molded material after it has taken an initial set at progressively higher temperatures from ambient to a temperature of approximately 800 degrees Fahrenheit for a time period of approximately 60 hours to form the large size cast monolithic refractory repair module having high dimensional stability, good compressive loading, and good thermal shock resistance in the range of 0 to 2,850 degrees Fahrenheit.

Assignee:
Tonawanda Coke Corp., Tonawanda, NY (United States)
Patent Number(s):
US 5227106; A
Application Number:
PPN: US 7-739318
OSTI ID:
6431290
Resource Relation:
Patent File Date: 1 Aug 1991
Country of Publication:
United States
Language:
English