Integral lining of continuous casting tundish

A continuous casting tundish and integral technology, which is applied in casting equipment, casting melt containers, metal processing equipment, etc., can solve the problems of high temperature of the tundish shell, serious sintering of the surface of the permanent layer, and limited use time. Erosion loss control, extended service life, uniform quality results

Inactive Publication Date: 2016-05-04
沈光辉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

(3) The surface sintering of the masonry permanent layer is more serious, and the cost is high, and the temperature of the outer shell of the tundish is too high and the use time is limited

Method used

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  • Integral lining of continuous casting tundish
  • Integral lining of continuous casting tundish
  • Integral lining of continuous casting tundish

Examples

Experimental program
Comparison scheme
Effect test

Embodiment ( 2

[0053] In actual manufacturing, 6, 8, and 10 are prepared in advance, and it only takes 20-30 minutes to put them into 1a and fix them, and the raw materials laid on 1e have not yet "solidified". 8, 8-10, 10-1 The "solidification" time of the raw materials in the gaps is a little longer than that of the bottom laying pins. For the first injection, the height of the raw materials in each part is uniformly about 300mm. The two vibrating rods start from the gap in the middle part, then the longitudinal ends and other parts. The head of the first round of vibrating rods should touch the bottom of the paving. Among the raw materials, every time you insert, lift, and move, the distance between left and right is 200mm, and the vibration time of each contact is 5-7 seconds. Follow up by analogy for each subsequent cycle, and the continuation time cannot be prolonged. When the raw material rises to a distance of 150mm from the upper edge of the lateral center point, the slag liquid dis...

Embodiment ( 3

[0055] 16. Refers to the further steps of the special demoulding frame including: using 120# national standard channel steel 75# angle steel and 30mm thick steel plate to weld three pieces of concave rectangular special demoulding frame, and welding the upper plane edge of each piece to the height 200mm, wide 200mm, thick 30mm steel plate 17, and drill 25mm diameter round hole at respective center points. One of 16 is in the state of the lower end of the transverse center, and the other two pieces have the same shape, but the length is shortened along with the change of the specified position before and after the transverse center of the 1 upper mouth. After the three pieces of special demoulding frame are made, they are placed on the level ground according to their reasonable distance from the mold for preparation.

[0056] 18. The further step of specifying the positioning pins includes: hoisting the molds that have finished baking and placing them on the planes at the two e...

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Abstract

The invention relates to an integral lining of a continuous casting tundish. The integral lining is not attached to the surface of a permanent layer of the continuous casting tundish, but can hold molten steel for a long time, resists corrosion of molten steel slag liquid and scouring, is provided with a straight arc slag dam with an impact area, a molten steel discharge hole, a molten steel drain hole and a slag liquid drain outlet, and is manufactured in one step. The integral lining has the outstanding advantages that the field assembly is simple and fast, labor and time are saved, and the integral lining is very environment-friendly. The using time is fixed and clear, and the integral lining is definitely safe and reliable. After the using of the integral lining is completed, the continuous casting tundish can be tilted for only once to pour all remaining lining bodies, steel lumps and slag, so that the lining bodies, the steel lumps and the slag are instantaneously and thoroughly separated from the surface of the permanent layer, the surface of the permanent layer is always not damaged, and the service life of the integral lining is effectively prolonged.

Description

Technical field: [0001] The invention relates to an integral lining of a continuous casting tundish (hereinafter referred to as the integral lining) which is not attached to the surface of a permanent layer of a continuous casting tundish and can contain molten steel for a long time. Background technique: [0002] Continuous casting billet tundish is an essential key equipment. The tundish cannot be used directly only with the protection of the permanent layer. It must be lined with a "working lining" on the surface of the permanent layer again before it can be used normally. The varieties used in the working lining include: smearing materials, hanging silicon, magnesium insulation boards, masonry spraying, dry materials, etc., and their defects and safety hazards in different degrees in the daily operation process mainly reflect the following aspects: (1) ) The slag line part is severely corroded, and the permanent layer is often burned by molten steel. (2) Collapsing edge...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D41/02
CPCB22D41/02
Inventor 沈光辉
Owner 沈光辉
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