Check patentability & draft patents in minutes with Patsnap Eureka AI!

A Method for Preventing Local Shrinkage and Deformation of Casting Wax Model

A shrinkage deformation, wax mold technology, applied in the directions of casting molds, casting mold components, casting molding equipment, etc., can solve the problems of shrinkage and deformation in the manufacture of wax molds, prevent local shrinkage deformation, solve local shrinkage deformation problems, and save working time. Effect

Active Publication Date: 2019-11-12
AECC AVIATION POWER CO LTD
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems existing in the prior art, the present invention provides a method for preventing local shrinkage and deformation of casting wax patterns, through which the problem of local shrinkage and deformation of precision castings in the process of manufacturing wax patterns caused by structural reasons can be solved

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
  • A Method for Preventing Local Shrinkage and Deformation of Casting Wax Model
  • A Method for Preventing Local Shrinkage and Deformation of Casting Wax Model
  • A Method for Preventing Local Shrinkage and Deformation of Casting Wax Model

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Embodiment 1: Duplex guide vanes

[0037] The double-connected guide vane is a solid double-connected blade set of a gas turbine. The blades and edge plates are relatively thick, especially the inlet edge of the leading edge is relatively thick, and the trailing edge is relatively thin. Therefore, when the wax mold is pressed, the cooling of the leading edge is relatively slow Slow, large shrinkage, easy to deform. Therefore, a corrective movable block is designed at the air inlet edge of the leading edge, one for each blade, two for each group, a total of 10 groups, which are recycled.

[0038] 1) Put the first group (2 pieces) of correction blocks into the wax mold to press the wax mold;

[0039] 2) Take out the pressed wax model with the correction block and keep it for 20 minutes until the wax model is cooled and shaped;

[0040] 3) Put the next set of corrective loose blocks in the wax mold, repeat steps 1 and 2;

[0041] 4) Remove the cooled and finalized wax m...

Embodiment 2

[0043] Embodiment 2: Primary guide vane

[0044] The primary guide vane is single vane and hollow. The upper and lower edge plates are thick and have many extensions, and the extensions often shrink and deform, resulting in the blade channel size being out of tolerance. Design and correct the movable blocks on the extension part of the edge plate, a total of 5 pieces are used in turn.

[0045] 1) Put the first correction block into the wax mold and press the wax mold;

[0046] 2) Take out the pressed wax model with the corrective block and keep it for 10 minutes until the wax model is cooled and shaped;

[0047] 3) Put the next correction block in the wax mold, repeat steps 1 and 2;

[0048] 4) Remove the cooled and finalized wax model from the correcting block (the design of the correcting block can be single or assembled, the purpose is to facilitate removal from the wax model), and enter the next process;

[0049] 5) Clean up the used correction block and recycle it for...

Embodiment 3

[0050] Example 3: Secondary guide vanes

[0051] The second-stage guide vane is a solid single blade, with a thick leading edge and a relatively thin trailing edge. When the wax mold is pressed, the leading edge cools slowly and shrinks greatly, causing the blade to become closed at the leading edge and deform seriously. A total of 8 corrective movable blocks are designed on the air intake side of the leading edge, and are used repeatedly.

[0052] 1) Put the first correction block into the wax mold and press the wax mold;

[0053] 2) Take out the pressed wax model with the correction block and keep it for 15 minutes until the wax model is cooled and shaped;

[0054] 3) Put the next correction block in the wax mold, repeat steps 1 and 2;

[0055] 4) Remove the cooled and finalized wax model from the correcting block (the design of the correcting block can be single or assembled, the purpose is to facilitate removal from the wax model), and enter the next process;

[0056] 5...

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

No PUM Login to View More

Abstract

The invention discloses a device for preventing local contraction deformation of a wax mold for castings. The device comprises the wax mold and straightening movable blocks. The castings can be stretched or supported by the straightening movable blocks, and the straightening movable blocks are arranged in the was mold and are used for being integrally connected with wax mold components for the castings when the wax mold is compressed, so that gradual contraction deformation can be prevented. A method for preventing local contraction deformation of the wax mold and the device have the advantages that straightening blank molds and the mold forming movable blocks are integrally combined with one another, accordingly, the method and the device are simple and feasible, and the problem of local contraction deformation in wax mold manufacturing procedures due the structures of precision castings can be effectively solved.

Description

【Technical field】 [0001] The invention belongs to the field of investment precision casting, and in particular relates to a method for preventing local shrinkage and deformation of casting wax molds, which is used to solve the problem of local shrinkage and deformation of precision castings in the process of manufacturing wax molds due to structural reasons. 【Background technique】 [0002] Investment precision casting mostly uses paste mold materials, so in the process of making wax molds, the solidification process of the paste mold materials, that is, the cooling process, will cause certain deformations in the wax molds. If it is not prevented and effectively controlled, it will inevitably cause deformation of precision castings. , affecting product quality, the dimensional accuracy of the wax mold directly determines the dimensional accuracy of the final precision casting. [0003] At present, shrinkage deformation often occurs in the process of casting wax mold manufactu...

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
Patent Type & Authority Patents(China)
IPC IPC(8): B22C9/04
CPCB22C9/04
Inventor 董茵常涛岐海潮李琳苏航陈杰王斌张云鹏
Owner AECC AVIATION POWER CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com