Continuous casting tundish diffuse-type gas-permeable ring upper nozzle brick cup and argon blowing refining method thereof
A technology of continuous casting tundish and nozzle block, which is used in casting equipment, casting melt containers, manufacturing tools, etc., can solve the problems of small effect and unstable "annular airflow, etc., to promote floating and removal, and inhibit immersion." The effect of the nodule problem of the type nozzle
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Embodiment 1
[0045] A kind of continuous casting tundish dispersion type breathable ring upper nozzle seat brick, such as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 As shown, it includes the upper nozzle block body 1, the diffused breathable ring 2, the air chamber 3, and the air intake pipe 4. The middle part of the upper nozzle block body 1 is provided with an upper nozzle installation hole that penetrates up and down. An annular diffused breathable ring 2 and an annular air chamber 3 are arranged from top to bottom, and the upper part of the diffused breathable ring stretches out from the upper surface of the nozzle block body 1, and the air chamber is located at the bottom of the diffused breathable ring, and It communicates with the diffused breathable ring, the side of the air chamber is connected with an air intake pipe 4, one end of the air intake pipe communicates with the air chamber, and the other end protrudes from the side of the upper nozzle block body 1, and ...
Embodiment 2
[0065] The continuous casting tundish diffused breathable ring upper nozzle seat brick as described in Example 1, the difference lies in:
[0066] The diffused air-permeable ring 2 has a circular cross-section, an isosceles trapezoid with a large upper side and a smaller lower side in its longitudinal section, the upper end width x of the ring is 40 mm, the lower end width y is 50 mm, and the height h is 90 mm . The longitudinal centerline of the lower end of the diffusion-type breathable ring 2 coincides with the longitudinal centerline of the annular air chamber 3, and the distance z from the upper edge of the installation hole of the upper nozzle is 35 mm. ¢ is the diameter of the central circle of the ring, and its size is designed according to the upper diameter of the upper nozzle installation hole and the distance x between the longitudinal centerline of the lower end of the diffused breathable ring 2 and the upper edge of the upper nozzle installation hole, such as sla...
Embodiment 3
[0082] The continuous casting tundish diffused breathable ring upper nozzle seat brick as described in Example 1, the difference lies in:
[0083] The diffused air-permeable ring 2 is circular in cross section, and its longitudinal section has a right-angled trapezoid with a large upper side and a smaller lower side. The upper width x of the ring is 35mm, the lower width y is 45mm, and the height h is 100mm. The longitudinal centerline of the lower end of the diffusion-type breathable ring 2 coincides with the longitudinal centerline of the annular air chamber 3, and the distance z from the upper edge of the installation hole of the upper nozzle is 40mm. ¢ is the diameter of the central circle of the ring, and its size is designed according to the upper diameter of the upper nozzle installation hole and the distance x between the longitudinal centerline of the lower end of the diffused air-permeable ring 2 and the upper edge of the upper nozzle installation hole. The diameter ...
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