Annular heating furnace large bottom plate adopting rolled blank

Abstract

The large bottom plate of the annular heating furnace adopts rolling blanks. The main body of the large bottom plate is a disc structure. One side of the disc structure is a plane, the center of the other side of the disc structure is a plane, and the outer periphery of the plane is a conical surface. A center hole is arranged in the center of the bottom plate, and circular bosses are respectively arranged around the center hole, and the blank of the large bottom plate is a rolling blank. The material of the large bottom plate is heat-resistant stainless steel. The material is cast into a billet by steel mold casting. The billet is solid solution treated and then rolled into a rolled plate. The rolled plate is subjected to non-destructive inspection after rough machining and fine machining. , The products that pass the non-destructive testing inspection are finished large base plates. The large bottom plate of the annular heating furnace adopting rolling blanks of the present invention can improve the structure of the blank by utilizing the characteristics of the rolling process, greatly improve the high temperature strength and high temperature stability of the large bottom plate of the annular heating furnace, and adapt to the working needs of the annular heating furnace. The effect is remarkable.

Description

technical field [0001] The invention relates to a large bottom plate of an annular heating furnace and a manufacturing method thereof, in particular to a large bottom plate of an annular heating furnace using a rolled blank and a manufacturing method thereof. Background technique [0002] The ring heating furnace is the heating equipment for heating the workpiece in the thermal processing and heat treatment process. The large bottom plate of the ring heating furnace is set at the bottom of the ring heating furnace, and it needs to work stably for a long time under the condition of bearing load in a high temperature environment. The commonly used large bottom plate of the annular heating furnace is made of ordinary heat-resistant steel casting process, which has many shrinkage cavities, non-compact structure, poor strength and stability in high temperature environment, unstable performance, variability, The working life is short and cannot meet the working needs of the annula...

AI Technical Summary

Problems solved by technology

The commonly used large bottom plate of the annular heating furnace is made of ordinary heat-resistant steel casting process, which has many shrinkage cavities, non-compact structure, poor strength and stability in high temperature environment, unstable performance, variability, The working life is short and cannot meet the working needs of the annular heating furnace

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