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Thermal-insulation baffle plate for liquid metal cooling and oriented solidification casting equipment

A liquid metal cooling and heat-insulating baffle technology is applied in the field of heat-insulating baffles, which can solve the problems of complicated manufacturing process, difficult to fix, fall off, etc.

Inactive Publication Date: 2011-01-05
SHENYANG RES INST OF FOUNDRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the manufacturing process of this baffle is complicated, and it is not easy to fix, and it is easy to fall off from the mold.

Method used

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  • Thermal-insulation baffle plate for liquid metal cooling and oriented solidification casting equipment
  • Thermal-insulation baffle plate for liquid metal cooling and oriented solidification casting equipment
  • Thermal-insulation baffle plate for liquid metal cooling and oriented solidification casting equipment

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Embodiment

[0017] A heat insulation baffle for liquid metal cooling directional solidification casting equipment, which is an annular baffle 13, the annular baffle 13 can move left and right in the horizontal plane, and the annular baffle 13 is composed of a semi-annular baffle 15 and a semi-annular baffle 16 Composed of splicing, the semi-annular baffle 16 has the same structure as the semi-annular baffle 15, and is made of zirconia or silicon wafer sandwiched aluminum silicate fiber felt.

[0018] The principle of use of the heat insulation baffle of the present invention:

[0019] In the previous LMC process, a fixed heat insulation baffle was only installed at the bottom of the heating chamber holding furnace to prevent heat from being lost from the heating area to the cooling area, and a floating baffle was set on the surface of the liquid metal cooling medium to further prevent heat from the heating area to the cooling area. The region dissipates and increases the temperature gradi...

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Abstract

The invention discloses a thermal-insulation baffle plate for liquid metal cooling and oriented solidification casting equipment, which is characterized by being an annular thermal-insulation baffle plate formed by jointing two semi-annular baffle plates and moving left and right in a small plane. The semi-annular baffle plates are made of zirconium oxide or formed by pressing graphite sheets and aluminum silicate fibrofelt between the graphite sheets and is 10 to 50 millimeters thick. When used, the thermal-insulation baffle plate forms a closed space together with a fixed thermal-insulation baffle plate, a floating thermal-insulation baffle plate and a heating and heat-preservation furnace. The thermal-insulation baffle plate provides a good generation condition for the generation of oriented column crystal and monocrystal structure castings, and improves the temperature gradient and solidification speed on the front edge of a solid-liquid interface.

Description

technical field [0001] The invention relates to a thermal insulation baffle for liquid metal cooling directional solidification casting equipment. Specifically, it is a radiation-proof heat insulation baffle that eliminates radial heat flow and ensures one-dimensional heat flow. technical background [0002] Oriented and single crystal blades eliminate the transverse grain boundaries perpendicular to the stress axis, and the crystal orientation is parallel to the stress direction acting on the blades, so the temperature resistance ability is significantly improved, and it has better longitudinal mechanical properties. It can be used in the harsh environment of high temperature gas Working for a long time, it is very suitable for the working conditions of the gas turbine blades. [0003] At present, the directional solidification equipment for manufacturing directional structure or single crystal structure castings mainly includes rapid solidification (HRS) directional solid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D27/04
Inventor 娄延春刘孝福苏贵桥于波
Owner SHENYANG RES INST OF FOUNDRY
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