Supercharge Your Innovation With Domain-Expert AI Agents!

Technology method for investment casting reverse gravity pouring without water glass sand modeling

A technology of anti-gravity pouring and process method, which is applied in the field of water-free glass sand molding of anti-gravity pouring investment castings, which can solve problems such as huge pressure difference, equipment damage, casting scrap, etc., to avoid contact, improve production efficiency, and ensure integrity sexual effect

Active Publication Date: 2019-10-15
西安超晶科技股份有限公司
View PDF11 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The proposal of this scheme not only reduces the production process of water glass sand molding, greatly saves human resources, but also avoids the generation of solid waste. Certain requirements have been met, once the quality of the mold shell is not up to standard, without the protection of water glass sand, there will be a risk of running out of the casting during pouring, which will not only lead to the direct scrapping of the casting, but also cause certain damage to the equipment
Secondly, the huge pressure difference of anti-gravity casting also poses new challenges to the impact resistance of the formwork

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
  • Technology method for investment casting reverse gravity pouring without water glass sand modeling
  • Technology method for investment casting reverse gravity pouring without water glass sand modeling
  • Technology method for investment casting reverse gravity pouring without water glass sand modeling

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] by size Take the casting as an example. The material of the casting is ZL105. The casting is basin-shaped and has a huge volume. The specific implementation steps of the water-free glass sand molding process are as follows:

[0050] Step 1: Design the gating system according to the characteristics of the casting;

[0051] Step 2: Press the wax mold of the casting, complete the assembly of the casting pouring process plan, and bond the flanging sprue cup to the lower end of the runner. The schematic diagram of the flanging sprue cup is as follows figure 1 As shown, the flanging sprue cup includes: flanging 1, sharp corner removal ring 2 and annular groove 3, flanging 1 is arranged on the outside of cylindrical runner 4, and formed between flanging 1 and cylindrical runner 4 The annular groove 3 is provided with a sharp corner removal ring 2 on the upper part of the flange 1 . The height of the flanging 1 is 10mm.

[0052] Step 3: According to the structural character...

Embodiment 2

[0064] Taking a casting with a size of 295mm×180mm×240mm as an example, the material is ZL114A, the casting is closed in a hemispherical shape, the wall thickness of the whole body is 4mm, and it is hollow. The specific steps of the water-free glass sand molding process are as follows:

[0065] Step 1: Design the gating system according to the characteristics of the casting;

[0066] Step 2: Press the wax mold of the casting, complete the assembly of the casting pouring process plan, and bond the flanging sprue cup to the lower end of the runner. The schematic diagram of the flanging sprue cup is as follows figure 1 As shown, the flanging sprue cup includes: flanging 1, sharp corner removal ring 2 and annular groove 3, flanging 1 is arranged on the outside of cylindrical runner 4, and formed between flanging 1 and cylindrical runner 4 The annular groove 3 is provided with a sharp corner removal ring 2 on the upper part of the flange 1 . The height of the flanging 1 is 10mm. ...

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 technology method for investment casting reverse gravity pouring without water glass sand modeling. Firstly, a pouring system is designed for the casting characteristics; then, casting wax die pressing and assembling are conducted, and an edge overturning pouring cup is used; a casting die shell is prepared; and finally, reverse gravity pouring of the casting die shell isconducted. According to the technology method, the edge overturning pouring cup is improved from the actual situation of the casting wax die, shell manufacturing and pouring production process; to guarantee consistency with the original pouring technology scheme, heat insulation ceramics and a modeling flat plate are designed to be matched with the pouring procedure work, and the modeling-free technology method is improved in a multi-angle systematic manner. The technology method solves the problem about reverse gravity pouring + investment casting method water glass sand modeling avoiding, and reverse gravity pouring is better applied to investment casting.

Description

technical field [0001] The invention relates to a process method for water-free glass sand molding of anti-gravity pouring investment castings, which is suitable for the production method of anti-gravity pouring investment castings. Background technique [0002] At this stage, the anti-gravity casting process has tended to be mature. Under the action of gas pressure, the molten metal is filled from the bottom to the opposite direction of gravity, and the rising speed of the molten metal through the riser and the filling of the cavity are completed. The molding speed is determined by the pressurization speed of the gas, the faster the pressurization speed, the faster the filling speed. Therefore, anti-gravity casting has the characteristics of stable mold filling, controllable mold filling rate, reasonable temperature field distribution, and solidification under pressure is conducive to casting solidification and feeding. The produced castings have excellent mechanical proper...

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): B22D18/04
CPCB22D18/04
Inventor 周中波何益可黄旗林琳薛祥义
Owner 西安超晶科技股份有限公司
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