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Preparation process of quick-change nozzle combined structure and machining mold thereof

A technology of combined structure and preparation process, which is applied in the field of water-packing ports, can solve problems such as unstable fixation, and achieve the effects of increasing resistance to molten steel scour, preventing leakage and preventing molten steel from seeping out.

Active Publication Date: 2021-10-01
湖州屹鑫节能材料科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the water inlet of the above technology is composed of the upper nozzle and the lower nozzle. In order to improve the service life of the water inlet, most of them use zirconium core as the material, but when the upper nozzle and the lower nozzle are combined, due to the unstable fixing, will cause water to flow out from the gap between the upper nozzle and the lower nozzle

Method used

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  • Preparation process of quick-change nozzle combined structure and machining mold thereof
  • Preparation process of quick-change nozzle combined structure and machining mold thereof
  • Preparation process of quick-change nozzle combined structure and machining mold thereof

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Embodiment

[0047] Such as Figure 1-Figure 5 As shown, a quick-change nozzle combination structure includes an upper nozzle 1 and a fixing device 6 .

[0048] The raw materials for the preparation of the upper nozzle and the lower nozzle include carbon-bonded light porous oxides, and the raw materials for carbon-bonded light porous oxides include aluminum oxide hollow spheres, calcium hexaaluminate and graphite. The raw materials for the preparation of the upper nozzle and the lower nozzle also include acidic substances, metal powder and additives. The acidic substance includes silicon dioxide or borax; the metal powder includes aluminum powder or magnesium powder, and the admixture includes bentonite, polyvinyl alcohol and methyl silicone oil.

[0049] Wherein, a lower nozzle 2 is provided below the upper nozzle 1, and a water guide pipe 3 is arranged inside the upper nozzle 1 and the lower nozzle 2, and the water guide pipe 3 is made of a high-temperature-resistant material for divert...

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PUM

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Abstract

The invention discloses a preparation process of a quick-change nozzle combined structure, and relates to the technical field of ladle nozzles. The quick-change nozzle combined structure comprises an upper nozzle, a lower nozzle is formed below the upper nozzle, water guide pipes are arranged inside the upper nozzle and the lower nozzle, a water guide device is arranged at the joint of the two water guide pipes, and limiting grooves are formed in the two ends of the upper nozzle and the two ends of the lower nozzle; the water guiding device comprises an upper water guiding block arranged at the bottom of the upper nozzle, a lower water guiding block is arranged at the top of the lower nozzle, the inner wall of the upper water guiding block and the inner wall of the lower water guiding block are both in an arc shape, and the diameter of the opening end of the upper water guiding block is smaller than that of the opening end of the lower water guiding block; and the preparation raw materials of the upper nozzle and the lower nozzle comprise carbon-bonded light porous oxides, and the raw materials of the carbon-bonded light porous oxides comprise alumina hollow balls, calcium hexaluminate and graphite. According to the preparation process, the upper nozzle and the lower nozzle can be well guided, and the leakage of molten steel is prevented.

Description

technical field [0001] The present invention relates to the field of nozzle technology, and more specifically, relates to a quick-change nozzle combination structure, a preparation process and a processing mold thereof. Background technique [0002] The zirconium core-wrapped nozzle refers to the structure used to divert molten steel. The invention with the publication number of CN103567428A discloses a nozzle for steel continuous casting tundish, which includes the upper nozzle body and the upper nozzle zirconium core. The lower nozzle is composed of the lower nozzle body and the zirconium core of the lower nozzle in the shape of a truncated cone. The holes of the zirconium core of the upper nozzle and the zirconium core of the lower hole are coaxial to form a molten steel channel, and the upper nozzle and the lower nozzle are in sealing contact. The zirconium core is made of zirconia material, and it is characterized in that the radial contact length between the upper end ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D41/50B22D41/54B22D41/56
CPCB22D41/50B22D41/54B22D41/56
Inventor 杨荣财张初华陈建平杨子元宋国翔张康尔
Owner 湖州屹鑫节能材料科技有限公司
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