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Multi-curve flow-control integral stopper and production method

An integral stopper, multi-curve technology, used in manufacturing tools, mixing operation control, chemical instruments and methods, etc., can solve problems such as short service life of integral stoppers

Inactive Publication Date: 2009-08-05
山东耐材集团中齐耐火有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The invention provides a multi-curve flow control integral stopper and its manufacturing method, which can solve the problem of short service life of the integral stopper existing in the prior art

Method used

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  • Multi-curve flow-control integral stopper and production method
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  • Multi-curve flow-control integral stopper and production method

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Embodiment Construction

[0032] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0033] The integral stopper for continuous casting is composed of a rod body 1 and a rod head 2, and the key parts used are the slag line of the stopper rod body 1 and the stopper rod head 2. Obviously, the location of the slag line, the selection of the rod head material and the design of the rod head shape directly determine the service life of the stopper rod. The focus of the present invention is the structural improvement design of the club head 2 shape.

[0034] The shape of the club head of present embodiment one has adopted double club head design, as figure 2 As shown, in order to achieve the purpose of improving the service life, considering the erosion resistance of the rod head and the radius of the arc curve between the rod head and the nozzle bowl, the change of the gap distance between them and the level of flow contr...

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PUM

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Abstract

The invention provides a multi-curve flow control integral stopper and a method for manufacturing the same, wherein the method can solve the problem that in the prior art the integral stopper has short service life. The technical proposal comprises that: the multi-curve flow control integral stopper comprises a head and a body and is characterized in that the whole head consists of a plurality of heads with different sizes; and from the body to the head, the circular curve radii of adjacent heads reduce from big to small. When a small head is eroded to a high degree and loses the flow control function, the position of the multi-head stopper falls so that the upper big head is contacted with a water gap bowl part to form a match and performs the flow control function of the stopper, thus the service life is prolonged.

Description

technical field [0001] The invention belongs to a refractory material for a steel continuous casting flow control device, in particular to an integral stopper for a steel continuous casting flow control device. Background technique [0002] Domestic iron and steel continuous casting systems generally use integral stopper flow control devices. The existing integral stopper rod is composed of two parts, the rod body and the rod head. The head of the integral stopper is a single head formed by an arc, such as figure 1 As shown, it looks like a "bullet" and completes the entire pouring process through the tundish nozzle matched with the arc rod head. In order to ensure good thermal shock stability and erosion resistance of the stopper rod, the body of the stopper rod is generally made of aluminum carbon material, and the head of the stopper rod is generally made of high aluminum carbon material. The head of the stopper rod is matched with the bowl of the built-in nozzle of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D41/18C04B35/66B28C1/16B28C7/04B28B3/00
Inventor 储鸿文郑卫民李小明赵祥滕铁力王芳
Owner 山东耐材集团中齐耐火有限公司