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Heat-storage maintaining furnace

A heat preservation furnace and heat storage technology, applied in the field of aluminum casting furnaces, can solve problems such as furnace cavity cracking, and achieve the effect of preventing furnace cracking, uniform stress, and uniform thermal deformation without cracking.

Inactive Publication Date: 2015-09-30
李宗保
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the cracking of the furnace cavity formed by integral casting is theoretically difficult to avoid

Method used

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Embodiment Construction

[0032] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0033] attached Figure 1-2 Shown is the general structure of the present invention.

[0034] attached Figure 3-5 Shown is the furnace cavity masonry and furnace heat storage structure.

[0035] In the furnace 1, the cavity 3 is in the shape of an arc of water droplets, two symmetrical large arcs 32 vertical walls of the cavity 3 and small arcs 31 vertical walls are cut and formed, and the vertical walls and the bottom of the cavity 3 are formed by more than three layers Masonry masonry, the inner lining layer is ceramic masonry layer, the other is thermal insulation masonry layer, the surface of thermal insulation masonry is attached with aluminum foil, 5 layers of powder are formed between the masonry layer and 5 layers of powder Filling fine powder 5, fine powder 5 ≤ 320 mesh mineral composition, specific gravity ≥ 2.7g / cm, ≤ 3...

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Abstract

The invention discloses a heat-storage maintaining furnace and relates to metallurgy aluminum casting. The heat-storage maintaining furnace comprises a furnace (1), a hearth (2) is shaped in water drop arc, the vertical wall of the hearth (2) of two symmetric large arcs (32) is tangential to the vertical wall of a small arc (31), the wall and the bottom of the hearth (2) are built by more than three layers of bricks, a liner layer is made of ceramic bricks, and the other layers are heat-insulation bricks. An aluminum foil is attached to the surfaces of the heat-insulation bricks, a powder layer (4) is formed between the brick layers, microfine powder (4) is filled in the power layer (4) and is made of ores smaller than 320 meshes, specific gravity is larger than or equal to 2.7 g / cm, and powder smaller than or equal to 320 meshes contains fine powder smaller than or equal to 800 meshes. The hearth (2) is horizontally provided with an air passage (17) in the upper portion, the air passage (17) is communicated with a vertical air guide pipe (18), and the vertical air guide pipe (18) is connected with a heat accumulator (3).

Description

technical field [0001] The present invention relates to casting furnaces, especially aluminum casting furnaces. Background technique [0002] In the existing heat preservation furnace for casting wheel hubs, because the furnace opening is required to be inclined due to the addition of aluminum, the door is naturally inclined, and the pressing and sealing device of the door can only be inclined. Therefore, the door only has room for horizontal rotation to open and close. In addition, the door can only be opened and closed by horizontal rotation, and the door can be opened and closed manually, so the trajectory of the door does not match the direction of the furnace hole, and the door cannot have a heat preservation part embedded in the furnace hole. For a long time, the insulation of the door has been very weak. [0003] The temperature of the pressure relief and exhaust of the holding furnace is generally equivalent to the furnace temperature of 700-800°C. At present, the c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D35/00
Inventor 柳伟李宗保杨丽杰边仁杰
Owner 李宗保
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