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

Filter for filtering molten metal and manufacturing method thereof

A molten metal and filter technology, applied in chemical instruments and methods, filtration separation, separation methods, etc., can solve the problems of easy moisture absorption, affecting product use, low strength, etc., to increase high temperature resistance, enhance mechanical properties, The effect of improving mechanical properties

Active Publication Date: 2013-11-27
JINAN SHENGQUAN DOUBLE SURPLUS CERAMIC FILTER
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, carbon-bonded filters have low strength at room temperature and are prone to moisture absorption, which affects the use of products at high temperatures

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
  • Filter for filtering molten metal and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] Add water to 45wt% corundum powder, 50wt% carbon, 2wt% aluminum silica gel, 1.5wt% dispersant and 1.5wt% active agent to make a slurry. Wherein the weight ratio of the total weight of corundum powder, carbon, aluminum silica gel, dispersant and active agent to water is: 100%: 12%.

[0061] This slurry was used to coat the cut polyurethane foam. The foam coated with slurry is dried and then sprayed with diluted slurry, then dried, and then sintered at 950°C.

Embodiment 2

[0063] Add water to 29% spinel powder, 56% carbon, 12% silica sol, 2.5% dispersant and 0.5% active agent to form a slurry. Wherein the weight ratio of the total weight of spinel powder, carbon, silica sol, dispersant and active agent to water is: 100%: 18%.

[0064] The slurry is made by mixing powder and water with a high-efficiency mixer, and the slurry is used to coat polyurethane foam. The coated foam is dried and then coated with diluted slurry once, then dried, and sintered at 1100°C.

Embodiment 3

[0066] Add water to 30% mullite powder, 47% carbon, 20% high softening point pitch, 2% polyvinyl alcohol, 2% dispersant and 1.0% active agent. Wherein the weight ratio of the total weight of mullite powder carbon, high softening point pitch, polyvinyl alcohol, dispersant and active agent to water is: 100%: 20%.

[0067] The slurry is made by mixing mullite powder, carbon, high softening point pitch, polyvinyl alcohol and water with a high-efficiency mixer. The mixed slurry was used to coat the polyurethane foam. The coated polyurethane foam is dried and then sprayed once with diluted slurry, then dried, and then sintered at 1150°C in an oxygen-free atmosphere.

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 filter for filtering molten metal, which comprises an open porous material, adhesive and ceramic powder, wherein the ceramic powder is stuck to the open porous material through the adhesive. The mechanical property of the filter is greatly enhanced and the high temperature resistance of the filter is improved by increasing the component and content of the adhesive in the filter and combining the use of the ceramic powder, so the filter can filter the molten metal at harsh temperature; and the mechanical properties such as tensile strength, elongation rate and the like of castings filtered by the filter are obviously improved. In addition, the components selected and used in the production of the filter are economic, and the filter is easy to realize in the production process, so the manufacture of the filter is more economic.

Description

technical field [0001] The invention relates to the manufacturing field of filters, more specifically, to a filter for filtering molten metal and a manufacturing method thereof. Background technique [0002] Currently, U.S. Patent 5104540 (CORNING Company) shows a carbon-coated porous sintered ceramic filter for filtering molten metal, comprising a monolithic substrate formed from a refractory material such as alumina, mullite, zircon powder , zirconia, spinel, cordierite, lithium, aluminum silicate, titanate, feldspar, quartz, fumed silica, silicon carbide, kaolin, aluminum titanate, silicate, aluminate and their mixtures . Carbon paint is applied to the filter surface or as a glow paint. [0003] US5520823 is a filter for filtering molten aluminum metal only. The adhesive is borosilicate glass. Although the filter included graphite, a considerable amount of graphite was lost due to sintering in air. The lost carbon limits the filter's usefulness to filtering aluminum ...

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): B01D39/20C22B9/02
CPCY02P10/20
Inventor 祝建勋刘敬浩
Owner JINAN SHENGQUAN DOUBLE SURPLUS CERAMIC FILTER
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