Big round bloom water jacket casted with high precision

Abstract

The invention relates to a big round bloom water jacket casted with high precision, which overcomes the defects existed in the present water jacket formed by a welding process, and creatively provides the big round bloom water jacket casted with high precision. A resin casting molding technology is used for preciously casting stainless steel raw material to the molding big round bloom water jacket by one step, the finished products have the advantages that the steel performance is strong, and precision of the size is easy to guarantee. The invention is characterized in that a resin casting stainless steel molding technology is used, stainless steel water jacket, positioning flange, annular and vertical flange reinforcement on the external cylindrical of the water jacket are directly casted to an integral body through a high precision casting method.

Description

technical field [0001] The invention relates to a large round billet water jacket for precision and high precision casting, in particular to a manufacturing method and structure of a water jacket in a large round billet batch crystallizer in metallurgical continuous casting equipment, and belongs to the technical field of metallurgical machinery industry. Background technique [0002] The crystallizer in the continuous casting machine in the metallurgical industry is the key equipment for the formation of hot slabs. The cooling of the mold slab is completed by passing cooling water through the water gap between the copper tube and the stainless steel water jacket. The cooling principle is to use the water through the gap The flow of cooling water takes away the heat of the hot slab. Under a certain flow rate, the cooling strength of the slab cooling system is determined by the width of the water gap between the shape of the copper tube and the inner cavity of the stainless st...

AI Technical Summary

Problems solved by technology

[0004] 1) The barrel is coiled by stainless steel plate, bent according to the arc by the pipe bender, and welded by opening groove; the stress generated by cold working grain hardening and welding causes the stress release after finishing, and the dimensional accuracy after forming cannot fully meet the requirements ;

[0005] 2) The wall thickness of the cylinder is 8-12mm. The adjusting bolts used to adjust the water joints are directly fixed on the water jacket. When assembling, the adjusting bolts are in direct contact with the copper pipes and fixed, and the normal force generated during work causes the deformation of the water wall And it is not easy to control, resulting in uneven water gap between the water jacket of the big round mold mold and the copper pipe;

[0006] 3) When processing the positioning flange, due to the eccentricity between the flange on the water jacket and the cylinder body of the water jacket, the water jacket flange can only be processed by a boring machine, and because the intersection of the center of the arc and the center of the straight line of the flange is different, it is difficult to Achieve machining accuracy, high manufacturing cost;

[0007] 4) Due to the inaccurate positioning accuracy of the arc centerline of the water jacket, welding stress is generated after welding with the flange, and errors are accumulated, which affects the dimensional accuracy of the water joint

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