Tundish magnesium calcium self-hardening work balance

Abstract

The invention discloses a tundish magnesium calcium self-hardening work balance, which is prepared from the following formula raw materials in parts by weight: main materials including 10 to 45 partsof calcium oxide and 45 to 80 parts of magnesium oxide, combination agents including 1 to 5 parts of organic matters and 1 to 4 parts of material surface waterproof treatment agents and the balance impurities including 1 to 2 parts of aluminum oxide and 1 to 4 parts of silicon dioxide. Combustible, explosive and toxic gas is not contained; the safety and environment protection requirements are conformed. Excellent alkali resistant slag corrosion characteristics are realized; molten steel occluded foreign substances such as aluminum oxide and silicon dioxide in molten steel can be effectively reduced; good adsorption and impurity removal functions are realized on steel slag of special steel such as Automobile sheets, tire cord steel, heavy rail steel and non-oriented silicon steel; the finished product rate of steel blanks is effectively improved; the molten steel is purified.

Description

technical field

[0001] The invention relates to the technical field of essential oil preparation, in particular to a magnesium-calcium self-hardening working scale with a tundish. Background technique

[0002] For tundishes, magnesium materials are generally used. According to different construction methods, working scales can be divided into dry materials, spread materials or spray paints. The dry material is mainly formed by vibration baking, and the smear material and spray paint are smeared and sprayed after the material is stirred with water. Whether it is a dry material, or a spread or spray paint, it needs to be baked before it can be shaped or stabilized.

[0003] For the material of the tundish work scale, although the magnesia material can meet the requirements of continuous casting of molten steel in the tundish, but with the increasingly high requirements for the cleanliness of molten steel, automobile sheets, non-oriented silicon steel, cord steel and heavy rai...

Examples

Embodiment 1

[0029] The present invention proposes a tundish magnesium-calcium self-hardening work scale, the formula of its raw materials by weight is as follows:

[0030] Main material: 10 parts of calcium oxide, 45 parts of magnesium oxide,

[0031] Binder: 1 part of organic matter A, 1 part of material surface water-repellent treatment agent B,

[0032] The rest are impurities: 1 part of aluminum oxide and 1 part of silicon dioxide.

[0033] The present invention also provides a preparation process for a tundish magnesium-calcium self-hardening work scale, comprising the following steps:

[0034] First, select magnesium-calcium particles with a calcium oxide content of 20%-60%, and use surface water-repellent treatment agent B to carry out oily and waterproof treatment on the surface;

[0035] Secondly, when using, mix the processed granules according to different proportions, add organic matter A, use vibration molding, leave the mold for 1 hour, and then use it.

Embodiment 2

[0037] The present invention proposes a tundish magnesium-calcium self-hardening work scale, the formula of its raw materials by weight is as follows:

[0038] Main material: 20 parts of calcium oxide, 50 parts of magnesium oxide,

[0039] Binder: 2 parts of organic matter A, 2 parts of material surface water-repellent treatment agent B,

[0040] The rest are impurities: 1.3 parts of aluminum oxide and 2 parts of silicon dioxide.

[0041] The present invention also provides a preparation process for a tundish magnesium-calcium self-hardening work scale, comprising the following steps:

[0042] First, select magnesium-calcium particles with a calcium oxide content of 20%-60%, and use surface water-repellent treatment agent B to carry out oily and waterproof treatment on the surface;

[0043] Secondly, when using, mix the processed particles according to different proportions, add organic matter A, use vibration molding, leave the mold for 1.5 hours, and then use it.

Embodiment 3

[0045] The present invention proposes a tundish magnesium-calcium self-hardening work scale, the optimal formula of its raw materials by weight is as follows:

[0046] Main materials: 30 parts of calcium oxide, 60 parts of magnesium oxide,

[0047] Binder: 3 parts of organic matter A, 2.5 parts of material surface water-repellent treatment agent B,

[0048] The rest are impurities: 1.5 parts of aluminum oxide and 2.5 parts of silicon dioxide.

[0049] The present invention also provides a preparation process for a tundish magnesium-calcium self-hardening work scale, comprising the following steps:

[0050] First, select magnesium-calcium particles with a calcium oxide content of 20%-60%, and use surface water-repellent treatment agent B to carry out oily and waterproof treatment on the surface;

[0051] Secondly, when using, mix the processed granules according to different proportions, add organic matter A, use vibration molding, leave the mold for 2 hours, and then use it....

technical field

[0001] The invention relates to the technical field of essential oil preparation, in particular to a magnesium-calcium self-hardening working scale with a tundish. Background technique

[0002] For tundishes, magnesium materials are generally used. According to different construction methods, working scales can be divided into dry materials, spread materials or spray paints. The dry material is mainly formed by vibration baking, and the smear material and spray paint are smeared and sprayed after the material is stirred with water. Whether it is a dry material, or a spread or spray paint, it needs to be baked before it can be shaped or stabilized.

[0003] For the material of the tundish work scale, although the magnesia material can meet the requirements of continuous casting of molten steel in the tundish, but with the increasingly high requirements for the cleanliness of molten steel, automobile sheets, non-oriented silicon steel, cord steel and heavy rai...

Examples

Embodiment 1

[0029] The present invention proposes a tundish magnesium-calcium self-hardening work scale, the formula of its raw materials by weight is as follows:

[0030] Main material: 10 parts of calcium oxide, 45 parts of magnesium oxide,

[0031] Binder: 1 part of organic matter A, 1 part of material surface water-repellent treatment agent B,

[0032] The rest are impurities: 1 part of aluminum oxide and 1 part of silicon dioxide.

[0033] The present invention also provides a preparation process for a tundish magnesium-calcium self-hardening work scale, comprising the following steps:

[0034] First, select magnesium-calcium particles with a calcium oxide content of 20%-60%, and use surface water-repellent treatment agent B to carry out oily and waterproof treatment on the surface;

[0035] Secondly, when using, mix the processed granules according to different proportions, add organic matter A, use vibration molding, leave the mold for 1 hour, and then use it.

Embodiment 2

[0037] The present invention proposes a tundish magnesium-calcium self-hardening work scale, the formula of its raw materials by weight is as follows:

[0038] Main material: 20 parts of calcium oxide, 50 parts of magnesium oxide,

[0039] Binder: 2 parts of organic matter A, 2 parts of material surface water-repellent treatment agent B,

[0040] The rest are impurities: 1.3 parts of aluminum oxide and 2 parts of silicon dioxide.

[0041] The present invention also provides a preparation process for a tundish magnesium-calcium self-hardening work scale, comprising the following steps:

[0042] First, select magnesium-calcium particles with a calcium oxide content of 20%-60%, and use surface water-repellent treatment agent B to carry out oily and waterproof treatment on the surface;

[0043] Secondly, when using, mix the processed particles according to different proportions, add organic matter A, use vibration molding, leave the mold for 1.5 hours, and then use it.

Embodiment 3

[0045] The present invention proposes a tundish magnesium-calcium self-hardening work scale, the optimal formula of its raw materials by weight is as follows:

[0046] Main materials: 30 parts of calcium oxide, 60 parts of magnesium oxide,

[0047] Binder: 3 parts of organic matter A, 2.5 parts of material surface water-repellent treatment agent B,

[0048] The rest are impurities: 1.5 parts of aluminum oxide and 2.5 parts of silicon dioxide.

[0049] The present invention also provides a preparation process for a tundish magnesium-calcium self-hardening work scale, comprising the following steps:

[0050] First, select magnesium-calcium particles with a calcium oxide content of 20%-60%, and use surface water-repellent treatment agent B to carry out oily and waterproof treatment on the surface;

[0051] Secondly, when using, mix the processed granules according to different proportions, add organic matter A, use vibration molding, leave the mold for 2 hours, and then use it....

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