Light and long-service-life tundish cover and manufacturing method thereof

A manufacturing method and tundish technology, applied in the direction of manufacturing tools, casting equipment, casting molten material containers, etc., can solve the problems of low service life of the tundish cover and complex process, etc., achieve small volume expansion rate, and avoid easy burning bad, slow erosion effect

Active Publication Date: 2015-09-02
巩义市亿隆耐火材料厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention overcomes the problems of low service life and complicated process of the tundish cover in the prior ar

Method used

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  • Light and long-service-life tundish cover and manufacturing method thereof
  • Light and long-service-life tundish cover and manufacturing method thereof
  • Light and long-service-life tundish cover and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0030] Example one: such as figure 1 As shown, the light-weight long-life tundish cover in this embodiment includes a steel structure, a refractory material filling layer 1, a slag hole 2 and a stopper hole 3. The steel structure includes a stainless steel frame 4 and a stainless steel frame. A stainless steel mesh 5, the lower side of the stainless steel mesh 5 is evenly connected with anchors 6, the middle of one side of the stainless steel mesh 5 is provided with a slag hole 2, and the outer edge of the slag hole 2 is provided with a stainless steel frame 7 The stainless steel mesh 5 is also provided with a number of stopper holes 3, and the outer edge of the stopper hole 3 is provided with a stainless steel frame 7. The stopper hole 3 can be used as an observation hole and a temperature measurement hole at the same time. The upper and lower sides of the stainless steel mesh 5 are both light-weight refractory filled layers 1.

[0031] The stainless steel mesh 5 is formed by w...

Example Embodiment

[0038] The second embodiment: the second embodiment is basically the same as the first embodiment, and the similarities are not repeated. The difference is that the stainless steel surface of the stainless steel mesh 5 is evenly wound with a buffer film.

Example Embodiment

[0039] The third embodiment: the third embodiment is basically the same as the first embodiment, and the similarities will not be repeated. The difference is that a stainless steel seamless steel pipe is also preset inside the tundish cover.

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Abstract

The invention discloses a light and long-service-life tundish cover and a manufacturing method thereof. The tundish cover comprises a steel structure, fireproofing filling layers, a fluxing hole and a stopper rod hole, wherein the steel structure comprises a stainless steel frame and a stainless steel net; the stainless steel net is arranged in the stainless steel frame; the lower side of the stainless steel net is connected with an anchoring piece; and light fireproofing filling layers are arranged on the upper side and the lower side of the stainless steel net. The manufacturing method comprises the following steps of manufacturing the steel structure; smashing and screening classified high-temperature-resistant glass particles; performing acid pickling and soft water rinsing on the classified high-temperature-resistant glass particles; drying and storing the glass particles; weighing the following materials in percentage by weight: 10%-20% of the high-temperature-resistant glass particles with the sizes of 8-15mm, 15%-25% of the high-temperature-resistant glass particles with the sizes of 5-8mm, 20%-30% of the high-temperature-resistant glass particles with the sizes of 3-5mm, 8%-15% of the high-temperature-resistant glass particles with the sizes of 1-3mm, 5%-10% of the high-temperature-resistant glass particles with the sizes of 0-1mm, 15%-25% of the high-temperature-resistant glass particles with the sizes of 0.088mm, 3%-8% of the high-temperature-resistant glass particles with the sizes smaller than 5mm and 0.1%-0.5% of water reducing agents; adding the materials in a sand mixer sequentially; adding 8%-15% of running water in the sand mixer in percentage by weight; adding hydrochloric acid in the sand mixer and adjusting a PH (potential of hydrogen) value to 3-5; adding 1%-3% of initiating agents in the sand mixer in percentage by weight; stirring the mixture for 5-8 minutes; discharging pug and pouring the pug in the steel structure; performing vibration molding on the pug; placing the pug in a kiln integrally after the pug is solidified; baking the pug; and then discharging the baked pug out of the kiln. A manufacturing technology of the device is simple, and the service life of the device is long.

Description

technical field [0001] The invention relates to a molten steel container for steelmaking and continuous casting and a manufacturing method thereof, in particular to a lightweight and long-life tundish cover for steelmaking and continuous casting and a manufacturing method thereof. Background technique [0002] With the development of large-scale, light-weight, non-oxidizing full-protection continuous casting technology, the traditional tundish cover can no longer meet the requirements of production and billet quality control, and the service life of the inner lining of the cover is low, which not only affects the turnover use, Increased costs. [0003] At present, there is also a tundish cover made of special-shaped refractory bricks fired at high temperature on the market, and the manufacturing process is quite complicated. Its production process is roughly: mold making → molding → firing → cutting, grinding → pre-build → packaging → shipping → assembly → baking → put into...

Claims

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Application Information

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IPC IPC(8): B22D41/00
Inventor 王怀育韩铁焕王书通韩亚隆
Owner 巩义市亿隆耐火材料厂
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