high temperature dry tunnel rolls by Qingdao Hexin Machinery Co.,Ltd.

 high temperature dry tunnel rolls

    Furnace bottom roll plays the role of a rotating to convey plate, my company produces furnace bottom with 300-400 - mm diameter, roll with the centrifugal casting, precise casting technology on journal bell mouth, shaft head with forging process.

Thick plate heat treatment furnace roll are usually used for normalizing furnace and hardening furnace, under the hydrogen nitrogen protective environment, Furnace temperature is about 900 ℃，to complete heat treatment process by transporting lenient plate with even rapid, the diameter of roller is 300-400mm,centrifugal casting for roll body, precision casting for journal and end bell, forging for shaft head.

   Common used material is: ZG40Cr25Ni20Si2、ZG14Ni32Cr20Nb、ZG45Ni48Cr28W5Si2.



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