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Non-preheating aluminium carbon zirconium mass immersion type sprue

An immersion, non-preheating technology, used in casting melt containers, manufacturing tools, metal processing equipment, etc., can solve the problems of shortening the service life of the immersion nozzle, affecting the efficiency of continuous casting, and bursting the immersion nozzle. Good thermal shock stability, saving baking energy and improving work efficiency

Inactive Publication Date: 2003-07-16
维苏威高级陶瓷(鞍山)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the ordinary aluminum-carbon and aluminum-carbon-zirconium immersion nozzles produced at home and abroad must be uniformly heated to 1100-1200°C before they can be used normally. The submerged nozzle will burst in the process of pouring or steel drawing, which will affect the normal continuous production; in addition, if the holding time is too long, the aluminum carbon zirconium material will be oxidized at high temperature, shortening the service life of the submerged nozzle, directly affecting Efficiency of continuous cast steel production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The components of aluminum carbon zirconium material are:

[0017] Flake graphite 25Kg;

[0018] Silicon carbide 5Kg;

[0019] Sialon 5Kg;

[0020] Fused zircon mullite 10Kg;

[0021] White corundum 48Kg;

[0022] Alumina hollow ball 7Kg.

[0023] Mix the above components evenly, add 10Kg of phenolic resin binder, and manufacture a submerged nozzle according to the method described above.

Embodiment 2

[0025] The components of aluminum carbon zirconium material are:

[0026] Flake graphite 23Kg;

[0027] Silicon carbide 5Kg;

[0028] Sialon 7Kg;

[0029] Fused zircon mullite 10Kg;

[0030] White corundum 47Kg;

[0031] Zirconia hollow ball 8Kg.

[0032] Mix the above components evenly, add 10Kg of phenolic resin binder, and manufacture a submerged nozzle according to the method described above.

Embodiment 3

[0034] The components of aluminum carbon zirconium material are:

[0035] Flake graphite 22Kg;

[0036] Silicon carbide 5Kg;

[0037] Sialon 10Kg;

[0038] Fused zircon mullite 10Kg;

[0039] White corundum 48Kg;

[0040] Floating beads 5Kg.

[0041] Mix the above components evenly, add 10Kg of phenolic resin binder, and make a submerged nozzle according to the method mentioned above.

[0042] The properties of the above products are shown in Table 1.

[0043] Example 1 product

Example 2 product

Embodiment 3 product

Apparent porosity%

14.5

14.8

15.1

Compressive strength MPa

33.5

32.8

31.5

Flexural strength MPa

8.5

8.2

8.0

service lifemin

280

300

290

Erosion slag line thickness mm

10

11

11

Whether there is any bursting phenomenon when pouring

none

none

none

[0044] It ca...

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PUM

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Abstract

A novel non-preheated immersed Al-C-Zr sprue and its manufacture technology are disclosed. Its advantages are high heat shock stability and impact resistance, no need of preheating, long service lifeand low cost.

Description

technical field [0001] The invention relates to a novel inorganic non-metallic refractory product, in particular to a non-preheating aluminum carbon zirconium submerged nozzle used in continuous steel casting production. Background technique [0002] At present, the ordinary aluminum-carbon and aluminum-carbon-zirconium immersion nozzles produced at home and abroad must be uniformly heated to 1100-1200°C before they can be used normally. The submerged nozzle will burst in the process of pouring or steel drawing, which will affect the normal continuous production; in addition, if the holding time is too long, the aluminum carbon zirconium material will be oxidized at high temperature, shortening the service life of the submerged nozzle, directly affecting Efficiency in continuous cast steel production. Contents of the invention [0003] The purpose of the present invention is to provide a submerged nozzle that can be used directly without preheating, has good thermal shock...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D11/10B22D41/54C04B35/106
Inventor 陈明徐福泉刘大为温荣宇郭淳璞关勇李轼保
Owner 维苏威高级陶瓷(鞍山)有限公司
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