Combined type crystallizer water jacket and machining method thereof

Abstract

The invention discloses a combined type crystallizer water jacket and a machining method thereof and belongs to the field of metal continuous casting equipment and machining methods of the metal continuous casting equipment. The combined type crystallizer water jacket comprises a hollow arc-shaped stainless steel water jacket body and an annular fixed partition plate fixedly arranged on the outer ring of the upper portion of the water jacket body in a sleeving manner; the water jacket body is provided with a plurality of flow guiding positioning water strips; and the water jacket body is formed in the manner that flanges, extending outwards along the opening position in the length direction, of two stainless steel groove bodies bent and machined through a numerical control machining center are connected through bolts. According to the combined type crystallizer water jacket and the machining method thereof, stainless steel plates are bent and then are subjected to early-stage machining in the numerical control machining center, the automation degree is high, the manpower cost is saved, and the production efficiency can also be substantially improved; and after the groove bodies subjected to numerical control machining are positioned and connected through the bolts, the product precision is high, and therefore the high precision requirement of a water seam between the water jacket and a copper pipe of a crystallizer is met, and the casting blank quality is guaranteed.

Description

technical field [0001] The invention belongs to the field of metal continuous casting equipment and a processing method thereof, and in particular relates to a combined crystallizer water jacket in the continuous casting equipment and a processing method thereof. Background technique [0002] The core components of the continuous casting machine in the metallurgical industry include the mold assembly. Whether its structural design is reasonable or not will directly affect the continuous casting effect. The molten steel needs to be cooled when it passes through the copper tube of the mold. The crystallizer assembly structure is equipped with a copper tube in the middle, and a water jacket is set on the outside of the crystallizer. A cavity is formed between the water jacket and the mold to ensure that the high-pressure circulating cooling water passes through evenly, so that the copper tube of the mold absorbs copper evenly. The heat of the molten steel in the tube is used to...

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Problems solved by technology

[0003] The existing water jacket is made of ordinary carbon steel, which is easy to rust, which greatly reduces the service life of the water jacket and greatly affects the cooling performance

A cooling channel needs to be formed between the copper tube of the mold and the water jacket, and its uniformity directly affects the quality of the slab. However, the connection between the copper tube of the mold and the water jacket is not firm and the water gap formed after the connection is not uniform, etc. Problem, uneven surrounding water seams will inevitably lead to inconsistent thickness of the billet shell formed in the crystallizer, cracks, leaks, etc., which will seriously affect the quality of the billet

There are two types of crystallizer water jackets: straight line and arc type. The arc type mold water jacket is generally realized by casting or extrusion. This method not only has a long production cycle, but also is difficult to guarantee the accuracy.

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