Slant-insert type molten iron pretreatment lance and manufacturing method thereof

A technology of molten iron pretreatment and manufacturing method, which is applied in the direction of manufacturing tools, spraying devices, casting equipment, etc., can solve the problems that the spray gun has not been effectively improved, the service life of the spray gun is affected, and the spray gun is bent and damaged, so as to increase the working distance and stir Areas, Enhanced Blending Effects, Effects that Increase Strength and Stiffness

Inactive Publication Date: 2010-07-28
WUHAN IRON & STEEL (GROUP) CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, this spray gun has not been effectively improved in terms of another major aspect that affects the service life of the spray gun, that is, the bending damage of the spray gun and the resulting problems such as tensile cracking, penetration, burning and peeling of the gun lining.

Method used

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  • Slant-insert type molten iron pretreatment lance and manufacturing method thereof
  • Slant-insert type molten iron pretreatment lance and manufacturing method thereof
  • Slant-insert type molten iron pretreatment lance and manufacturing method thereof

Examples

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[0019] The present invention will be further described in detail below with reference to the drawings and specific embodiments.

[0020] Such as figure 1 As shown, the first embodiment of the oblique insertion type hot metal pretreatment spray gun of the present invention includes a gun core steel tube 1, a refractory material gun lining 2 and a number of anchors. One end of the gun core steel tube 1 is bent to form a gun head 3. The refractory material The gun liner 2 covers the outer surface of the gun core steel tube 1, and the anchor is fixed on the outer surface of the gun core steel tube 1 and is located in the refractory gun liner 2. The outer surface of the gun core steel pipe 1 is provided with an axial stiffener 6 on both sides of the axial section in the bending direction of the gun head 3, and the axial stiffener 6 is also covered on the refractory gun lining Within 2. As a preferred embodiment of the present invention, the axial reinforcing rib 6 extends from the upper

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Abstract

The invention discloses a slant-insert type molten iron pretreatment lance and a manufacturing method thereof. The lance comprises a lance core steel tube, a refractory lance lining and a plurality of anchoring parts, wherein one end of the lance core steel tube is bent into the lance head; the refractory lance lining covers the outside surface of the lance core steel tube; and the anchoring parts are fixed on the outside surface of the lance core steel tube and positioned in the refractory lance lining; Axial reinforcing ribs are arranged at two sides of an axial section in the bending direction of the lance head on the outside surface of the lance core steel tube and are also covered in the refractory lance lining. The following steps are correspondingly added in the manufacturing method: clipping common carbon steel plates, polishing the two sides of the carbon steel plates into slants which are easy to weld to prepare the axial reinforcing ribs; and welding the axial reinforcing ribs at the two sides of the axial section in the bending direction of the lance head on the outside surface of the lance core steel tube. The lance is good in bending resistant effect, long in service life, good in injection pretreatment effect and simple in manufacturing process.

Description

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Claims

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Application Information

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Owner WUHAN IRON & STEEL (GROUP) CORP
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