Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Sodium silicate investment casting shell-making process

A technology of investment casting and water glass, which is used in manufacturing tools, casting equipment, casting molds, etc., can solve the problems of harsh working environment, high cost, and poor shell finish.

Inactive Publication Date: 2021-02-23
张文利
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, in the shell-making process of water glass investment casting, the hardeners used in the hardening pool are generally ammonium chloride, magnesium chloride, and aluminum chloride, but the above three hardeners have cumbersome procedures in the processing process , high cost, and harsh working environment; in addition, the shell hardened by magnesium chloride and aluminum chloride has the problems of poor finish, difficult roasting, and difficult shot blasting. This problem is especially obvious in the casting process of large shells

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] Based on above-mentioned design, for the water glass investment casting shell making technology in a kind of specific application scene provided by the present invention, comprise the steps:

[0073] a) Surface layer shell making:

[0074] 1) Slowly immerse the module with an inclination angle α into the evenly stirred surface coating and rotate, so that the surface coating is flush and evenly spread between the module and the sprue cup. After the module is taken out, use a brush or air gun to clean it. Apply evenly on sharp corners, grooves, holes and gaps until all parts of the module are evenly covered with surface layer paint;

[0075] 2) Hang or place the module on the material control rack, remove excess surface coating, so that the mold shell is evenly coated and has no trace;

[0076] 3) Apply sand to the evenly applied modules, sprinkle the quartz sand evenly on the modules, and remove the floating sand;

[0077] 4) Hang the evenly sanded module on the air-dr...

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 provides a sodium silicate investment casting shell-making process. The process comprises the following steps: making a surface layer shell, making a transition layer shell, making a reinforcing layer shell, and making the surface layer shell, the transition layer shell and the reinforcing layer shell layer by layer through the process, parameters, coating and a hardening agent. Thecasted shells have good stability and high degree of finish, meanwhile, the working environment is improved, the operation procedure is simplified, and the economic effects of saving energy consumption and reducing cost are achieved.

Description

technical field [0001] The invention relates to the technical field of casting, in particular to a shell-making process of water glass investment casting. Background technique [0002] Investment casting, also known as "lost wax casting", usually refers to making a fusible material into a pattern, coating several layers of refractory material on the surface of the pattern to make a shell, and then melting the pattern out of the shell to obtain a non-parting surface The casting mold can be filled with sand and poured after high-temperature roasting. Since patterns are widely made of waxy materials, investment casting is often referred to as "lost wax casting". [0003] At present, in the shell-making process of water glass investment casting, the hardeners used in the hardening pool are generally ammonium chloride, magnesium chloride, and aluminum chloride, but the above three hardeners have cumbersome procedures in the processing process , high cost, and harsh working envi...

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 Applications(China)
IPC IPC(8): B22C9/04B22C3/00
CPCB22C9/04B22C3/00
Inventor 张文利
Owner 张文利
Features
  • Generate Ideas
  • 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