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Assembling tool and method for accurately controlling orientation consistency of seed crystals

A precise control and consistent technology, applied in the direction of manufacturing tools, chemical instruments and methods, crystal growth, etc., can solve the problem that the secondary orientation does not have clear requirements, so as to reduce artificial errors, improve efficiency, and high repeatability Effect

Pending Publication Date: 2022-04-19
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the complexity of the preparation process, it is usually only required that the deviation of the axial orientation be within a certain range, but there is no clear requirement for the secondary orientation

Method used

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  • Assembling tool and method for accurately controlling orientation consistency of seed crystals
  • Assembling tool and method for accurately controlling orientation consistency of seed crystals
  • Assembling tool and method for accurately controlling orientation consistency of seed crystals

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] like Figure 1-Figure 3 As shown, the present embodiment is to assemble the wax mold through the assembly tool in the present invention, and prepare the nickel-based single crystal superalloy test plate with the axial orientation as [001] and the secondary orientation as [001]. The specific process is:

[0056] Step 1, prepare the seed crystal 14 with the axial direction [001] and the secondary orientation [001], and cut out a marking plane perpendicular to the secondary orientation.

[0057] Step 2, preparing the wax mold 13 of the single crystal plate, pouring the melted wax material into the mold, press molding, and taking out the wax mold of the single crystal plate after cooling.

[0058] Step 3, fix the wax model 13 on the four-jaw chuck 4 with the plane upward, and tighten the fixing bolts. At the same time, the liftable supporting platform 9 is raised, so that the wax mold 13 is placed parallel to the slide rail base 1 without deformation.

[0059] Step 4, con...

Embodiment 2

[0067] like Figure 1-Figure 3 As shown, the present embodiment is to assemble the wax mold through the assembly tool in the present invention, and prepare the nickel-based single crystal superalloy test plate with the axial orientation as [001] and the secondary orientation as [011]. The specific process is:

[0068] Step 1, prepare the seed crystal 14 with the axial direction [001] and the secondary orientation [001], and cut out a marking plane perpendicular to the secondary orientation.

[0069] Step 2, preparing the wax mold 13 of the single crystal plate, pouring the melted wax material into the mold, press molding, and taking out the wax mold of the single crystal plate after cooling.

[0070] Step 3, fix the wax model 13 on the four-jaw chuck 4 with the plane upward, and tighten the fixing bolts. Simultaneously, the liftable supporting platform 9 is raised, so that the wax mold 13 is placed parallel to the slide rail base 1 without deformation.

[0071] Step 4, confi...

Embodiment 3

[0079] like Figure 1-Figure 3 As shown, in this embodiment, a wax mold is assembled by an assembly tool in the present invention, and a nickel-based single crystal superalloy blade with an axial orientation of [001] and a secondary orientation of [001] is prepared. The specific process is:

[0080] Step 1, prepare the seed crystal 14 with the axial direction [001] and the secondary orientation [001], and cut out a marking plane perpendicular to the secondary orientation.

[0081] Step 2, preparing the single crystal blade wax mold 13, pouring the melted wax material into the mould, press molding, and taking out the single crystal blade wax mold after cooling.

[0082] Step 3, fix the wax model 13 on the four-jaw chuck 4 with the plane upward, and tighten the fixing bolts. Simultaneously, the liftable supporting platform 9 is raised, so that the blade wax mold 13 is placed parallel to the slide rail base 1 without deformation.

[0083] Step 4, confirm that the pointer 8 is o...

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Abstract

The invention relates to the field of single-crystal high-temperature alloys, in particular to an assembly tool and method for accurately controlling the orientation consistency of seed crystals. According to the assembling tool, a fixed bracket and a movable bracket are oppositely arranged at the top of a slide rail base, and the movable bracket is pushed forwards to insert a heated seed crystal on a wax mold; a fixed end four-jaw chuck is installed on the fixed support, a rotatable four-jaw chuck is installed on the movable support, the rotatable four-jaw chuck is connected with the movable support through a bearing, and the fixed end four-jaw chuck and the rotatable four-jaw chuck correspond to each other and are coaxial. One end of a horizontal seed crystal is mounted on the rotatable four-jaw chuck, and a heating ring is mounted on the outer side of the other end of the seed crystal; one end of a horizontal wax mold is mounted on the fixed end four-jaw chuck, and the other end of the seed crystal corresponds to the other end of the wax mold. According to the method, orientation errors caused by manual assembly can be eliminated, seed crystal orientation is accurately controlled through a mechanical method, and the process of preparing the single crystal high-temperature alloy casting for controlling secondary orientation through a seed crystal method is optimized.

Description

technical field [0001] The invention relates to the field of single-crystal high-temperature alloys, in particular to an assembly tool and method for precisely controlling the consistency of seed crystal orientation. Background technique [0002] Single crystal superalloys have excellent high-temperature properties, so they are widely used in the hot end parts of advanced engines, and their mechanical properties have significant anisotropy. The [001] direction has a smaller elastic modulus and has good comprehensive creep and fatigue properties. Likewise, secondary orientation has a significant effect on the properties of single crystal superalloy parts. Due to the complexity of the preparation process, it is usually only required that the deviation of the axial orientation be within a certain range, but there is no clear requirement for the secondary orientation. By designing an assembly tool that helps to simplify and accurately control the orientation consistency of sin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C30B11/14C30B11/00C30B29/52B22C9/04C22C19/03C22C19/05C22C30/00
CPCC30B11/14C30B11/002C30B29/52B22C9/04C22C19/03C22C19/058C22C19/057C22C19/056C22C30/00
Inventor 盛乃成曹夕侯桂臣王振江荀淑玲谢君桑志茹周亦胄孙晓峰
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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