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

High-nitrogen composite ceramic sprue cap for casting aluminum alloy

A technology of high nitrogen composite ceramics and aluminum alloys, which is applied in casting molding equipment, molds, mold components, etc., and can solve problems such as easy adhesion to molten aluminum, easy corrosion of gate caps, and easy deformation or cracking of gate caps. , to achieve the effect of excellent strength

Active Publication Date: 2013-10-02
LIAONING YIFEI TECH
View PDF4 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Among the existing ceramics, there are ceramic products directly made of silicon carbide materials, but the performance of ceramic products made of a single material cannot meet the actual needs, so it needs to be compounded, but what material is compounded to obtain the best effect , which requires a lot of experimental research to realize
[0004] When ordinary ceramics are used to make aluminum alloy sprue caps, it is easy to adhere to the aluminum liquid, and the aluminum liquid is also easy to corrode the sprue cap. Under high temperature conditions, the sprue cap is also easy to deform or crack, which affects the service life. Therefore, frequent replace

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 Construction

[0011] 1. Ingredients: In the total composition, by mass percentage, silicon nitride 5%-10%, aluminum nitride 30%-50%, titanium dioxide 20%-40%, silicon dioxide 10%-20%, nitrogen Magnesium chloride 5%-10% constitutes the raw material of high nitrogen composite ceramics.

[0012] 2. Blank making: Mix and stir the high-nitrogen composite ceramic raw materials evenly, then add a set amount of water, continue to stir to form a paste, and then pour or press to form it. It is poured into a gypsum mold, formed by absorbing water, and becomes a high-nitrogen composite ceramic blank after demoulding. Among them, the press molding is to add the pasty high-nitrogen composite ceramic raw material into a metal mold, form it by pressure, and become a high-nitrogen composite ceramic blank after demoulding.

[0013] 3. Firing: Add the dried high-nitrogen composite ceramic billet into the gas-fired sintering kiln, and sinter at a temperature of 1500-2000 degrees Celsius for 20-30 hours. The s...

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 relates to a high-nitrogen composite ceramic sprue cap for casting aluminum alloy. The sprue cap is made from silicon nitride, aluminium nitride, titanium dioxide, silicon dioxide and magnesium nitride through pre-forming and sintering. The silicon nitride, the aluminium nitride, the titanium dioxide, the silicon dioxide and the magnesium nitride are taken as raw materials, so that the nitride proportion in the manufactured ceramic sprue cap is large, and the sprue cap has excellent strength, toughness, high temperature resistance, corrosion resistance and non-sticky aluminum performance. The high-nitrogen composite ceramic sprue cap is suitable for casting of aluminum alloy.

Description

technical field [0001] The invention relates to a sprue cap for high-nitrogen composite ceramic aluminum alloy casting used for metallurgical casting. Background technique [0002] The sprue cap is an interface provided on the upper part of the casting cavity for pouring the metal liquid. There are many types of ceramics that can be used in the sprue cap for aluminum alloy casting, usually a combination of non-metallic materials, which form a structure with a certain structural shape after batching and sintering. According to different raw materials, mixing ratios and different firing processes, the properties of the formed products are quite different, especially when used in special occasions, there are corresponding requirements for the performance of ceramics. [0003] Among the existing ceramics, there are ceramic products directly made of silicon carbide materials, but the performance of ceramic products made of a single material cannot meet the actual needs, so it ne...

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): B22C9/08C04B35/46C04B35/582
Inventor 徐涛李鑫
Owner LIAONING YIFEI TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com