Invisible riser for ingot casting and heat-preservation method thereof

A technology for die-casting ingots and caps, which is applied to the field of invisible caps for die-casting ingots, can solve the problems of poor ingot shrinkage, low yield and high consumption, so as to reduce the consumption of thermal insulation materials and labor, and improve the ingot casting. Quality, the effect of reducing production costs

Inactive Publication Date: 2012-08-29
王召祥
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1) The thermal insulation effect of the cap mouth is poor, and the internal shrinkage of the ingot is not good and the quality is poor
[0005] 2) One-time use of cap mouth, high consumption, troublesome operation and high cost
[0006] 3) The cap mouth is large and the yield is low
[0007] 4) The on-site environment is poor, which affects the health of operators

Method used

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  • Invisible riser for ingot casting and heat-preservation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A die-cast ingot cap mouth, including a heat insulating layer 1 and a protective layer 2, the heat insulating layer 1 is directly painted or sprayed on the inner wall of the cast film to a thickness of 12mm, and the outer surface of the heat insulating layer 1 is painted with the protective layer 2 . The heat insulation layer plays the role of heat preservation and high temperature resistance, and the protective layer plays the role of high temperature resistance, non-stick and erosion resistance. The thickness of the heat insulation layer 1 is 16 mm; the thickness of the protective layer 2 is 0.1 mm.

[0035] The heat insulation layer and the protective layer are adhered to the inner wall of the casting film and maintain the original geometric shape of the inner cavity of the casting film, so as to realize the substantial non-cap casting.

[0036] The heat insulation layer is divided into an equal thickness section L1 and a transition section L2. The equal thickness s...

Embodiment 2

[0042] Others are the same as embodiment 1, the difference is:

[0043] A die-cast ingot cap opening, including a thermal insulation layer 1 and a protective layer 2, the thermal insulation layer 1 is directly painted or sprayed on the inner wall of the cast film to a thickness of 20mm, and the outer surface of the thermal insulation layer 1 is coated with the protective layer 2 . The heat insulation layer plays the role of heat preservation and high temperature resistance, and the protective layer plays the role of high temperature resistance, non-stick and erosion resistance. The thickness of the heat insulating layer 1 is 12mm; the thickness of the protective layer 2 is 0.15mm.

[0044] The heat insulation layer and the protective layer are adhered to the inner wall of the casting film and maintain the original geometric shape of the inner cavity of the casting film, so as to realize the substantial non-cap casting.

[0045] The heat insulation layer is divided into an eq...

Embodiment 3

[0048] Others are the same as embodiment 2, the difference is:

[0049] A mold ingot casting mold with a temperature gradient, comprising the die casting ingot hat mouth of the present invention, an ingot 5 and a chassis 7, the ingot 5 and the chassis 7 form a mold cavity, and the mold casting ingot hat mouth is located at the top of the ingot 5 within the reserved space.

[0050]Die-cast ingot cap mouth, including heat insulation layer 1 and protective layer 2, heat insulation layer 1 is directly painted or sprayed on the inner wall of cast film, brushed to a thickness of 20mm, and the outer surface of heat insulation layer 1 is painted with protective layer 2; The thickness of the thermal insulation layer 1 is 12mm; the thickness of the protective layer 2 is 0.15mm.

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Abstract

The invention relates to an invisible riser for pouring in ingot casting and a heat-preservation method; and the invisible riser inlaid at the inner wall of a casting film is also provided with an electric heating heat-preservation cover, a traditional special riser and a method of a heat-preservation material are replaced, and substantial riser-free pouring is realized. The device of the method comprises a permanent heat-insulation layer (1) with high-temperature resistance, which forms a whole with the casting film, a protective layer (2) which has high-temperature resistance and scouring resistance and is not stuck with steel (or other metal) and the electric heating heat-preservation cover (3). The method has the advantages that the operation is simple, the qualification rate of ingot casting is high, the quality of ingot casting is good, the environment is good and the like.

Description

technical field [0001] The invention relates to a mold-casting ingot invisible cap opening, in particular to a mold-casting ingot invisible cap opening and an upper heat preservation method suitable for large and small mold ingots in liquid state of various high-temperature metals. Background technique [0002] At present, most of the large and small mold ingot caps at home and abroad adopt the heat preservation method of disposable heat preservation cap and liquid surface covering heat preservation material. [0003] Its disadvantages are: [0004] 1) The thermal insulation effect of the cap mouth is poor, and the internal shrinkage of the ingot is not good and the quality is poor. [0005] 2) The mouth of the cap is used for one time, with high consumption, cumbersome operation and high cost. [0006] 3) The cap mouth is large and the yield is low. [0007] 4) The on-site environment is poor, which will affect the health of the operators. Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D7/06B22C9/08
Inventor 王召祥
Owner 王召祥
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