F - Mech Eng,Light,Heat,Weapons – 27 – D
Patent
F - Mech Eng,Light,Heat,Weapons
27
D
38/32
F27D 3/02 (2006.01) F27B 9/14 (2006.01) F27B 9/30 (2006.01)
Patent
CA 1266774
ABSTRACT OF THE DISCLOSURE A skid beam for use in a walking beam type heating furnace which has operating temperatures exceeding 1000 °C comprises a hollow skid pipe of heat re,sistant alloy, skid buttons provided upright on the skid pipe and arranged axially thereof at a predetermined spacing, and a refractory lining covering the outer peripheral surface of the skid pipe and each of the s}sid buttons over the base portion thereof toward its upper portion. Each of the skid buttons comprises a first member attached to the skid pipe and made of a heat-resistant alloy, and a second member to be brought into contact with the material to be heated. The second member is made of a composite material composed of a heat-resistant alloy and ceramic particles dispersed therein in an amount of 30 to 70 % by weight based on the, composite material. The skid button has a height exceedlng 120 mm. The lining portion covering the skid button over the base portion thereof toward its upper portion has a thickness so as not to give a temperature difference of greater than 40 °C between the top of the skid button and the interior of the furnace.
539328
Hiraishi Hisashi
Inoue Toshio
Kawai Tohru
Naito Tadashi
Nakatani Osamu
Fetherstonhaugh & Co.
Kawasaki Steel Corporation
Kubota Ltd.
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