Molten steel bottom pour ladle with vacuum
A ladle and molten steel technology, applied in the direction of casting melt container, metal processing equipment, casting equipment, etc., can solve the problems of inability to pour, cold insulation of castings, and ladle pouring switch is easy to freeze and cannot be opened, so as to improve the heat preservation effect , Prevent the effect of cooling down too fast
Inactive Publication Date: 2018-08-14
ZHEJIANG WUJING MACHINE MFG
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Problems solved by technology
[0002] In the existing casting process, it is generally required to cast molten steel at a temperature slightly higher than the liquidus line. This method can reduce feeder shrinkage, increase the yield of castings, avoid or reduce the phenomenon of molding sand being sintered by high-temperature molten steel, and is also conducive to reducing Small casting grain size improves mechanical properties, reduces the requirements for coating refractoriness, and reduces the probability of casting gas and sand holes; box pouring), there will be too much cooling of the molten steel in the later stage of pouring, resulting in cold shut and insufficient pouring defects in the castings poured later; in addition, due to excessive cooling, the molten steel freezes on the inner wall of the ladle (hanging steel), and the ladle pours after cooling The switch is easy to freeze and cannot be opened, causing problems such as inability to pour
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[0025] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:
[0026] Such as figure 1 As shown, a bottom leaking ladle with vacuum includes a ladle side wall 1 and a ladle bottom 2 .
[0027] Such as figure 1 , figure 2 As shown, the side wall of the ladle includes a refractory material layer 1.1, a stainless steel inner layer 1.2, a stainless steel outer layer 1.3 and a steel plate shell 1.4 distributed sequentially from the inside to the outside. The refractory layer is composed of high alumina bricks or magnesia bricks. An inner asbestos cloth layer 1.5 is arranged between the refractory material layer and the inner stainless steel layer. An outer asbestos cloth layer 1.11 is arranged between the steel plate shell and the stainless steel outer layer. The outer asbestos cloth layer rests against the surface of the stainless steel outer layer. The refractory filler 1.12 is filled between the outer ...
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The invention discloses a molten steel bottom pour ladle with vacuum. The molten steel bottom pour ladle with the vacuum aims at effectively improving the heat preservation effect of the molten steelbottom pour ladle with the vacuum and preventing the problems that due to excessively-rapid cooling of a molten steel bottom pour ladle, cold shut is generated in castings, molten steel is frozen on the inner wall of the steel ladle, and a pouring switch of the steel ladle is frozen. The molten steel bottom pour ladle with the vacuum comprises a steel ladle side wall. The steel ladle side wall comprises a refractory material layer, a stainless steel inner layer and a stainless steel outer layer, wherein the refractory material layer, the stainless steel inner layer and the stainless steel outer layer are distributed in sequence from inside to outside. A side wall vacuum chamber is formed between the stainless steel inner layer and the stainless steel outer layer.
Description
technical field [0001] The invention relates to the field of thermal insulation of casting pouring ladles, in particular to a leaky bottom ladle for molten steel with vacuum. Background technique [0002] In the existing casting process, it is generally required to cast molten steel at a temperature slightly higher than the liquidus line. This method can reduce feeder shrinkage, increase the yield of castings, avoid or reduce the phenomenon of molding sand being sintered by high-temperature molten steel, and is also conducive to reducing Small casting grain size improves mechanical properties, reduces the requirements for coating refractoriness, and reduces the probability of casting gas and sand holes; box pouring), there will be too much cooling of the molten steel in the later stage of pouring, resulting in cold shut and insufficient pouring defects in the castings poured later; in addition, due to excessive cooling, the molten steel freezes on the inner wall of the ladle...
Claims
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Patent Timeline
Login to View More IPC IPC(8): B22D41/02
CPCB22D41/02
Inventor 梁伟武刘国祥朱晓畅王志强郑晓峰金星星
Owner ZHEJIANG WUJING MACHINE MFG