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A tundish with controlled deflection deformation

A tundish and arc-shaped technology, which is applied in the direction of manufacturing tools, casting molten material containers, metal processing equipment, etc., can solve the problems of deflection and deformation, so as to improve the service life, increase the number of continuous pouring furnaces, and avoid excessive temperature Effect

Active Publication Date: 2018-05-15
苏州金立鑫特材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to overcome the deficiency that the continuous casting tundish is prone to deflection deformation in the prior art, and to provide a tundish that can control the deflection deformation, which can control the deflection deformation of the tundish, and can further keep the tundish in the production process. The nozzle and the crystallizer nozzle do not deviate, and the service life of the tundish is improved

Method used

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  • A tundish with controlled deflection deformation
  • A tundish with controlled deflection deformation
  • A tundish with controlled deflection deformation

Examples

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Effect test

Embodiment 1

[0038] combine Figure 1-4 As shown, a tundish with controllable deflection deformation of the present invention includes a tundish main body 100 and a prestress applying mechanism 200, the tundish main body 100 includes a tundish bottom plate 110 and a tundish side plate 120, and the tundish bottom plate 110 is horizontal Set, tundish side plate 120 is installed around tundish bottom plate 110, tundish bottom plate 110 and tundish side plate 120 constitute the molten steel container of top opening (as figure 1shown). The tundish nozzle 111 is opened on the bottom plate 110 of the tundish, and the opening 211 corresponding to the nozzle is also provided on the prestressing mechanism 200 .

[0039] The middle part of the above-mentioned prestress applying mechanism 200 is curved upward in an arc shape, and the arc-shaped top 201 of the prestress applying mechanism 200 is in contact with the tundish bottom plate 110, and the arc-shaped top 201 applies prestress to the tundish b...

Embodiment 2

[0075] The basic content of this embodiment is the same as that of Embodiment 1, except that the 10-strand billet continuous casting machine of 3#10 machine of a certain company’s No. 1 and Table 2, it can be seen that the distance between the centers of steel bar sleeves 212 is 100 mm, and the diameter of steel bar sleeves 212 is The diameter of the prestressed steel bar 220 is The deformation of the designed prestress applying mechanism 200 is D=70mm, and the designed prestress of the prestress applying mechanism 200 is 500MPa.

[0076] A process of applying prestress to the bottom plate of the tundish in this embodiment:

[0077] The components of heat-resistant concrete are composed according to the following mass parts: 43kg of cement, 25kg of refractory aggregate, 5kg of filler, 8kg of additive, 1kg of antirust agent, 1kg of water reducing agent, and 5kg of water; the above cement is C60 Portland cement , the filler is composed of copper powder, converter wind-quench...

Embodiment 3

[0084] The basic content of this embodiment is the same as embodiment 1, the difference is:

[0085] The components of heat-resistant concrete are composed according to the following mass parts: 40kg of cement, 30kg of refractory aggregate, 8kg of filler, 15kg of additive, 1kg of antirust agent, 1kg of water reducing agent, and 5kg of water; the above cement is C60 Portland cement , the filler is composed of copper powder, blast furnace slag, and gravel in a ratio of 1:1:1, the copper powder is deoxidized copper powder, and the particle size of the filler is continuously graded granular material of 3 to 10 mm. Described additive is made up of water glass and sodium fluorosilicate, and quality is water glass 9kg, sodium fluorosilicate 6kg respectively.

[0086] When the tundish of this embodiment is used for continuous casting, the number of continuous casting furnaces reaches 58 furnaces. The tundish of this embodiment does not have bad plastic deformation, and the overall st...

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Abstract

The invention discloses a tundish capable of controlling down-warping deformation and belongs to the technical field of steel-making continuous casting in the metallurgical industry. The tundish comprises a tundish body and an applying mechanism, wherein the tundish body comprises a tundish base plate and a tundish side plate, the tundish base plate is horizontally arranged, and the tundish side plate is installed around the tundish base plate. The middle of the prestressing force applying mechanism is upward bent in an arc-shaped mode. The prestressing force applying mechanism is installed at the lower portion of the tundish base plate, the middle of the prestressing force applying mechanism is in contact with the tundish base plate, and a prestressing force is applied to the tundish base plate. The prestressing force applied by the prestressing force applying mechanism to the tundish base plate offsets the gravity of molten steel, the down-warping deformation of the tundish is controlled, it is ensured that a tundish slide gate and a crystallizer slide gate do not offset in the production process and are effectively aligned, the service life of the tundish is prolonged, continuous casting heats are increased, and the production efficiency of continuous casting production is improved.

Description

technical field [0001] The invention relates to the technical field of steelmaking and continuous casting in the metallurgical industry, and more specifically relates to a tundish capable of controlling deflection deformation. Background technique [0002] The tundish is a refractory container used in the iron and steel metallurgical production process. The tundish receives molten steel poured from the ladle, and then is distributed to each crystallizer by the tundish nozzle. The tundish is the key link in the gating system of the continuous casting machine. It is located between the ladle and the crystallizer, and is used to receive molten steel from the ladle and inject molten steel into the mold. The purpose of using the tundish is to reduce the static pressure of molten steel, Make the steel flow stable and reduce the impact and agitation of the steel flow on the molten steel in the crystallizer. The tundish can divide the molten steel through multiple nozzles to realize...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D41/00B22D41/02C04B35/66
CPCB22D41/00B22D41/02C04B35/66
Inventor 邓爱军范鼎东
Owner 苏州金立鑫特材科技有限公司
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