Novel tamping process method for middle and small size refined steel ladle permanent layer

A process method and permanent layer technology, applied in the direction of manufacturing tools, metal processing equipment, casting melt containers, etc., can solve the problems of poor knotting effect of the permanent layer, inconvenient mold preparation and practical operation, etc., and achieve good masonry quality. , The effect of eliminating the demoulding process and saving the number of turnovers

Active Publication Date: 2014-11-05
HARBIN ELECTRIC MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the knotting thickness of the permanent layer of the small and medium-sized ladle is relatively thin, the mold preparation and practical operation of the ladle are very inconvenient, so the knotting effect of the permanent layer is very poor when using the normal process operation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] The process steps are as follows:

[0015] Step 1: Lay a layer of 20 mm thick heat insulation board on the bottom of the ladle;

[0016] Step 2: Tie the permanent layer on the bottom of the bag and keep it healthy for 24 hours;

[0017] Step 3: Lay the bottom brick after the bottom is completely solidified; stick the first layer of heat insulation board on the wall along the bottom, and build the first layer of working bricks for the wall, leaving a gap of 75-90mm in the middle;

[0018] Step 4: Fill the gap between the wall-wrapping brick and the heat insulation layer with water and good aluminum-magnesium spinel castable, the proportion of water is 6-7%, and vibrate with a vibrating rod;

[0019] Step 5: Paste the second layer of heat insulation board on the wall, build the second layer of wall-wrapped working bricks, pour the castable of the second layer and vibrate, and then build layer by layer;

[0020] Step 6: Preserve for 12 hours; first bake on low heat for 4...

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PUM

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Abstract

The invention relates to a novel tamping process method for a middle and small size refined steel ladle permanent layer, in particular to a quite efficient permanent layer tamping structure and belongs to the category of the steel ladle bricklaying process. In specific operation, bricks on a working layer serve as molds, the permanent layer is directly tamped between the working layer and a thermal insulating layer and maintained for a period of time, the permanent layer rapidly enters a baking period, so that ladle repair time is further shortened, and repairing and bricklaying are better and more effective; mold cost is omitted and ladle bricklaying time is greatly shortened. The method is wide in application prospect, lays a firm foundation for effective operation of the metallurgy bricklaying process and points a new direction for development of the permanent layer tamping process.

Description

technical field [0001] The invention relates to a special structure in which the ladle refractory brick is simplified as the permanent layer of the mold and directly knotted. Background technique [0002] The new knotting process for the permanent layer of small and medium-sized refining ladles is mainly composed of several steps such as pasting heat insulation boards, laying refractory bricks, pouring the knotted permanent layer, curing and baking. Since the knotting thickness of the permanent layer of the small and medium-sized ladle is relatively thin, the mold preparation and practical operation of the ladle are very inconvenient, so the knotting effect of the permanent layer using the normal process operation is very poor. In order to effectively achieve a good knotting effect of the permanent layer of small and medium-sized ladles and shorten the knotting cycle, we first build the refractory bricks in the working layer as a mold, and directly pour the permanent layer o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D41/02
Inventor 袁志亮戎子臣宫心波吴英顾福奇周佩超王拓戴艳涛李祖良高书江
Owner HARBIN ELECTRIC MASCH CO LTD
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