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Pouring cup model for investment casting and using method thereof

A technology of investment casting and sprue cups, which is applied in the direction of casting molding equipment, molds, mold components, etc., can solve the problems of substandard product quality, casting slag inclusions, pores, etc., to control costs and improve casting slag inclusions , The effect of reducing the probability of air inclusion in castings

Pending Publication Date: 2019-12-03
XIAN HAOSEN PRECISION CASTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

my country already has the independent R&D and research capabilities of new superalloy materials and new processes, but the actual castings cast by investment casting technology often have defects such as slag inclusions and pores, resulting in substandard product quality

Method used

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  • Pouring cup model for investment casting and using method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] In the sprue cup model used for investment casting in this embodiment, the material of the model body 1 and the flanging 2 are both zirconium sound sand, and the angle α between the flanging 2 and the outer surface of the model body 1 is 30°, and the model body The wall thickness of 1 is T=10㎜, the model body 1 is a hollow circular platform, and the section is made along the longitudinal direction of the circular platform. The inner surface and outer surface of the model body 1 respectively form the first inverted trapezoid and the second inverted trapezoid in the longitudinal section , the upper side length L of the second inverted trapezoid 1 50㎜, bottom length L 2 90㎜, height H 1 is 150mm, the length of the upper side of the first inverted trapezoid is L 3 38㎜, bottom length L 4 68.4㎜, height H 2 is 140㎜; the longitudinal section of the flange 2 is a triangle, the length l of the base of the triangle is 25㎜, and the height h is 30㎜. There is a circular arc trans...

Embodiment 2

[0031] The difference from Example 1 is that the sprue cup model used for investment casting in this example has an angle α between the flanging 2 and the outer surface of the model body 1 = 20°, and the wall thickness of the model body 1 is T = 10°. ㎜, the model body 1 is a hollow circular platform, and the section is made along the longitudinal direction of the circular platform. The inner surface and the outer surface of the model body 1 respectively form the first inverted trapezoid and the second inverted trapezoid in the longitudinal section, and the second inverted trapezoid Length of upper side L 1 60㎜, bottom length L 2 108㎜, height H 1 is 180mm, the length of the upper side of the first inverted trapezoid is L 3 45㎜, bottom length L 4 81㎜, height H 2 is 170㎜; the longitudinal section of the flange 2 is a triangle, the length l of the base of the triangle is 30㎜, and the height h is 40㎜. There is a circular arc transition section with a radius R of 5 mm. All the...

Embodiment 3

[0033] What is different from Example 1 is that the sprue cup model used for investment casting in this example has an angle α between the flanging 2 and the outer surface of the model body 1 = 80°, and the wall thickness of the model body 1 is T = 8 ㎜, the model body 1 is a hollow quadrangular prism with a large upper opening and a small lower opening. The section is made along the longitudinal direction of the quadrangular prism. The inner and outer surfaces of the model body 1 respectively form the first inverted trapezoid and The second inverted trapezoid, the length of the upper side of the second inverted trapezoid is L 1 40㎜, bottom length L 2 72㎜, height H 1 is 120mm, the length of the upper side of the first inverted trapezoid is L 3 35㎜, bottom length L 4 63㎜, height H 2 is 112㎜; the longitudinal section of the flange 2 is a triangle, the length l of the base of the triangle is 20㎜, and the height h is 20㎜. There is a circular arc transition section with a radiu...

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Abstract

The invention provides a pouring cup model for investment casting and a using method of the pouring cup model, and belongs to the technical field of investment casting; the pouring cup model specifically comprises a model body and a flange connected to the upper end of the model body, wherein the model body and the flange are integrally and fixedly connected and surround the upper end face of themodel body by a circle; the pouring cup model and the using method thereof can solve the problems of slag inclusion and air inclusion of a pouring cup casted by the investment casting process in the prior art.

Description

technical field [0001] The invention belongs to the technical field of investment casting, and in particular relates to a sprue cup model for investment casting and a using method thereof. Background technique [0002] High-temperature alloys have a high degree of alloying and have excellent physical and chemical properties. They are also called "superalloys". They are an important material widely used in aviation, aerospace, petroleum, chemical industry, and ships. my country already has independent R&D and research capabilities for new superalloy materials and new processes, but castings actually cast by investment casting technology often have defects such as slag inclusions and pores, resulting in substandard product quality. According to the analysis of technicians, the slag inclusion is because the impact point of the high-temperature molten metal on the sprue cup is not easy to control. If the impact point of the molten metal falls on the mouth of the sprue cup, due t...

Claims

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Application Information

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IPC IPC(8): B22C9/08B22C9/04
CPCB22C9/082B22C9/04
Inventor 余英明李文静胡少奇王宏岗
Owner XIAN HAOSEN PRECISION CASTING
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