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Material receiving disc for directional solidification crystallization furnace and manufacturing method of material receiving disc

A technology of directional solidification and receiving trays, which is applied in the direction of manufacturing tools, casting equipment, casting molding equipment, etc., can solve the problems of burns on furnace walls and other parts of equipment, reduced vacuuming capacity of directional furnaces, and easy generation of splashes, etc., to achieve improved The effect of service life and equipment utilization, easy cleaning, and low cost

Active Publication Date: 2021-10-01
AECC AVIATION POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are unavoidable problems in the actual production process: during the pouring process, the molten metal is prone to splash after contact with the sprue cup, material leakage caused by quality problems of the mold shell and material leakage caused by uneven contact between the crystallizer and the mold shell, etc. , These will cause burns to the transmission mechanism of the equipment isolation valve, the sealing part of the large shaft and the furnace wall of the equipment
In particular, when metal shavings enter the main shaft, it is easy to scratch the main shaft, resulting in a sharp decline in the vacuuming capacity of the directional furnace

Method used

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  • Material receiving disc for directional solidification crystallization furnace and manufacturing method of material receiving disc
  • Material receiving disc for directional solidification crystallization furnace and manufacturing method of material receiving disc
  • Material receiving disc for directional solidification crystallization furnace and manufacturing method of material receiving disc

Examples

Experimental program
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Effect test

Embodiment 1

[0059] The chemical composition of the alloy material used for pouring the working blades of a high-pressure turbine is 60% Ni, 10.5% Co, 9.3% Cr, and 20.2% other elements. In the actual pouring process, splashing is very easy to occur. Taking pouring of 100 sets of mold shells as an example, the failure rate of pouring equipment is 1%, and the rate of slag inclusion is 15%.

[0060] By adopting the material receiving tray design method described in the invention, the corresponding material receiving tray is prepared. The material receiving tray adopts the angle σ1 between the side inner wall of the material receiving tray main body and the bottom inner wall of the material receiving tray main body as 120°, the maximum outer diameter D1 of the top end surface of the material receiving tray main body is 547mm, and the bottom of the material receiving tray main body The outer diameter D3 of the outer wall plane is 470 mm, and the height H1 from the top end surface of the receivi...

Embodiment 2

[0062] The chemical composition of the alloy material used for pouring the guide vane of a high-pressure turbine is 52.1% Co, 11.5% Ni, 26.5% Cr, and 9.9% other elements. In the actual pouring process, splashing is very easy to occur. Taking pouring of 50 sets of mold shells as an example, the failure rate of pouring equipment is 1%, and the slag inclusion rate is 24.5%.

[0063] By adopting the material receiving tray design method described in the invention, the corresponding material receiving tray is prepared. The material receiving tray adopts the angle σ1 between the side inner wall of the material receiving tray main body and the bottom inner wall of the material receiving tray main body as 110°, the maximum outer diameter D1 of the top end surface of the material receiving tray main body is 500mm, and the bottom of the material receiving tray main body The outer diameter D3 of the outer wall plane is 450 mm, and the height H1 from the top end surface of the receiving t...

Embodiment 3

[0065] The chemical composition of the alloy material used for pouring the working blade of the first-stage turbine of a machine is 63.5% Ni, 8.0% Co, 7.1% Cr, and 21.4% other elements. In the actual pouring process, splashing is very easy to occur. Taking pouring of 100 sets of mold shells as an example, the failure rate of pouring equipment is 1%, and the rate of slag inclusion is 15%.

[0066] By adopting the material receiving tray design method described in the invention, the corresponding material receiving tray is prepared. The material receiving tray adopts the angle σ1 between the side inner wall of the material receiving tray main body and the bottom inner wall of the material receiving tray main body as 115°, the maximum outer diameter D1 of the top end surface of the material receiving tray main body is 525mm, and the bottom of the material receiving tray main body The outer diameter D3 of the outer wall plane is 460 mm, and the height H1 from the top end surface o...

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Abstract

The invention discloses a material receiving disc for a directional solidification crystallization furnace. The material receiving disc comprises a material receiving disc body with an opening in the top, the surface of the bottom of the material receiving disc body is of an annular structure, a first connecting hole is formed in the inner circle of the material receiving disc body, and a connecting column is coaxially arranged on the first connecting hole; and the connecting column body is integrally connected to the inner wall of the bottom of the material receiving disc body, the connecting column body is of a hollow cavity structure, a second connecting hole is formed in the wall face of the top of the connecting column body, and the second connecting hole and the first connecting hole are coaxially arranged. According to the material receiving disc for the directional solidification crystallization furnace, the repair cost is saved, the design is simple and effective, the cost is low, the material receiving disc is suitable for application and popularization in the investment casting industry, and the problem of unpredictable risk caused by damage caused by molten metal splashing can be solved.

Description

technical field [0001] The invention belongs to the technical field of directional crystallization furnaces, in particular to a receiving pan for a directional solidification crystallization furnace and a manufacturing method thereof. Background technique [0002] With the development of aero-engines and gas turbines, the performance requirements are gradually increasing, and the requirements for investment casting technology are also increasing. The directional solidification technology is gradually established and perfected. The development of this technology is mainly to improve The thermal shock resistance, fatigue life, creep, etc. of the blades can further improve the service life and temperature of the blades, so as to improve the overall performance of the engine. [0003] To realize the directional solidification process, it must be guaranteed by corresponding equipment. The directional solidification crystallization furnace is the key equipment to realize direction...

Claims

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Application Information

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IPC IPC(8): B22D45/00B22C9/04B22D27/04C22C19/05C22C19/07
CPCB22D45/00B22C9/04B22D27/045C22C19/05C22C19/07
Inventor 王继龙马李朝任翠东许言杨瑞琪董伟陈波陈杰
Owner AECC AVIATION POWER CO LTD
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