Pouring system for hollow single crystal blade

A single crystal blade and pouring system technology, applied in casting molding equipment, casting molds, cores, etc., can solve problems such as failure to ensure timely delivery of blades, failure to meet technical requirements, and extended development cycle, so as to shorten the development cycle and reduce Effects of Economic Loss, Good Economic Benefit and Social Benefit

Active Publication Date: 2015-12-23
GUIYANG AVIC POWER PRECISION CASTING
View PDF6 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of turbine working blade usually adopts top pouring gating system in the casting process. , loose, miscellaneous crystals, large-angle grain boundaries, small-angle grain boundaries, zebra crystals, and crystal orientation deviations cannot meet the

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Pouring system for hollow single crystal blade

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The technical solution of the present invention is further described below in conjunction with the accompanying drawings, but the scope of protection is not limited to the description.

[0018] Such as figure 1 As shown, a gating system for a hollow single crystal blade according to the present invention includes a sprue cup 1, a feeding rectangular block 3, a blade wax piece 5, a seeding segment 7, a disc 8 and a sprue 10 , the sprue 10 and the seeding segment 7 are installed vertically on the disc 8 respectively, the upper end of the sprue 10 communicates with the sprue cup 1 through the ceramic filter 11, and the lower end communicates with the seeding segment through the ingate 9 7, the seeding segment 7 communicates with the lower end of the blade wax piece 5 through the spiral crystal selector 6, and the upper end of the blade wax piece 5 communicates with the feeding rectangular block 3, and the feeding shrinking rectangular block 3 is exhausted through the slag ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Diameteraaaaaaaaaa
Thicknessaaaaaaaaaa
Diameteraaaaaaaaaa
Login to view more

Abstract

The invention discloses a pouring system for a hollow single crystal blade. The pouring system comprises a pouring cup, rectangular feeding blocks, blade wax pieces, crystal guide sections, a disc and a sprue. The sprue and the crystal guide sections are perpendicularly mounted on the disc. The upper end of the sprue is communicated with the pouring cup through a ceramic filter net. The lower end of the sprue is communicated with the crystal guide sections through ingates. The crystal guide sections are communicated with the lower ends of the blade wax pieces through spiral crystallizers. The upper ends of the blade wax pieces are communicated with the rectangular feeding blocks. The rectangular feeding blocks are communicated with the upper portion of the pouring cup through slag collecting gas vents. Feeding heads are further arranged at the upper ends of the blade wax pieces. The pouring system is reasonable in structure, the probability of inclusions, loosening, mixed crystals, a high-angle boundary, a low-angle boundary, zebra crystals and a crystal orientation deviation scrap rate of the single crystal blade is reduced, the product percent of pass is greatly increased, economic losses are reduced, the developing cycle is shortened, on time delivery of the blade is ensured, and the pouring system can be widely applied and popularized in the technical field of melted module precise casting.

Description

technical field [0001] The invention relates to a pouring system for hollow single-crystal blades, which belongs to the technical field of investment precision casting. Background technique [0002] The working blade of a certain turbine is a complex air-cooled hollow single crystal blade, and its shape is composed of a blade body, a mounting plate, an extension and a tenon. Among them, the thickness of the leaf body wall varies greatly, the thickest is 3.5mm, and the thinnest is 0.5mm. In the casting process of this type of turbine working blades, a top pouring gating system is usually used. The gating system is composed of a sprue cup, an upper disc runner, a support rod and a crystal selector. Blades cast using this gating system are prone to inclusions. , loose, miscellaneous crystals, high-angle grain boundaries, small-angle grain boundaries, zebra crystals, and crystal orientation deviations cannot meet the technical requirements. The casting scrap rate is over 95%, a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B22C9/04B22C9/22
Inventor 马启伟吴建颢臧川王君武姚刚孔小青贺文燮杨治力刘芳琴刘波
Owner GUIYANG AVIC POWER PRECISION CASTING
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap