Continuous casting secondary cooling water spraying strip base pipe automatic water distributing device and machining method thereof

Abstract

The invention discloses a continuous casting secondary cooling water spraying strip base pipe automatic water distributing device which comprises a main pipeline, a base pipe and spraying strips. The main pipeline is connected with the middle of the base pipe, the spraying strips are distributed and connected on the base pipe evenly, and a water distributing baffle is arranged in the base pipe and at the connecting position of the main pipeline and the base pipe. The invention further discloses a machining method of the continuous casting secondary cooling water spraying strip base pipe automatic water distributing device. By means of the device, water quantity can be distributed equally, casting blanks can achieve an even cooling effect, inner and surface quality of the casting blanks can be improved, and yield of products is improved.

Description

technical field [0001] The invention relates to a steel casting technology, in particular to an automatic water diversion device for a continuous casting secondary cooling water spray bar base pipe and a processing method thereof. Background technique [0002] Such as figure 1 Shown is a schematic structural view of the continuous casting secondary cooling water device in the prior art. The main pipeline 1 is connected to the middle part of the base pipe 2, and six spray strips 3 (marked as 1 # ,2 # 、3 # ,, 4 # 、5 # 、6 # ,) connected to the base pipe 2. [0003] The working principle of the secondary cooling water device of the casting machine is: when the main pipe 1 with a certain pressure enters the base pipe 2, it flows to the spray strips 3 on the left and right sides, and passes through the spray strips 3 connected to the base pipe 2. The form of the fan is sprayed onto the surface of the slab to cool the slab. [0004] Such as figure 2 Shown is the water di...

AI Technical Summary

Problems solved by technology

In addition, the large temperature difference between the two sides of the slab will lead to uneven cooling inside the slab, and the position and shape of the end of the liquid core area will be irregular.

Under the light pressure of the casting machine, the fan-shaped segment cannot completely cover the end of the liquid core area (C area), the segregation of the slab center will not be improved, and the internal quality will deteriorate, which will directly lead to delamination and performance of the slab during rolling. Unqualified and other issues

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