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

Mold material, method for producing same, method for producing mold, and method for regenerating recovered refractory aggregate

A manufacturing method and refractory technology, applied in the fields of mold material and its manufacture, manufacture of mold, and regeneration of reclaimed refractory aggregate, can solve labor-intensive, coated sand adhered to casting products, poor disintegration of mold Sufficient and other problems, to achieve the effect of excellent filling

Pending Publication Date: 2020-03-31
ASAHI YUKIZAI KOGYO CO LTD
View PDF16 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, as disclosed in Patent Document 1, since conventional coated sand using an inorganic binder such as water glass contains only a trace amount of organic components, it is difficult to The amount of gas is small, so there is no moderate gap between the casting (casting product) and the mold during casting, and there is a concern that the coated sand (and / or its solidified product) will adhere to the casting product
Organic binders generally lose their adhesive force by heating, but inorganic binders do not lose their adhesive force only by heating. Therefore, the coated sand (and / or its cured product) attached to the surface of the cast product ) often remains on the surface of cast products even after heating in the casting process and subsequent heat treatment process
Therefore, after these treatment steps, a step of removing the coated sand (and / or its solidified product) adhering to the surface of the cast product is required, and there is a problem that it takes a lot of labor.
In addition, in the conventional coated sand using an inorganic binder such as water glass, the disintegration of the mold obtained using it is not sufficient, and there is room for improvement in this point.

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
  • Mold material, method for producing same, method for producing mold, and method for regenerating recovered refractory aggregate
  • Mold material, method for producing same, method for producing mold, and method for regenerating recovered refractory aggregate
  • Mold material, method for producing same, method for producing mold, and method for regenerating recovered refractory aggregate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0119] Hereinafter, some examples of the present invention are shown, and the present invention will be explained more concretely. It goes without saying that the present invention is not limited at all by the description of these examples. In addition, unless otherwise indicated, "%" and "part" shown in the following description are mass basis. In addition, in the following examples and comparative examples, the average particle diameter of the powder, the light transmittance of the dispersion liquid of the powder, the moisture content of the coated sand (CS) as the mold material, and the Measurement or evaluation of the magnetic adsorption rate, the state of sand adhesion when casting with each CS (adhesion state of CS), and the surface roughness of the casting surface.

[0120] (1) Average particle size of powder

[0121] For the average particle diameter of the powder, use the Microtrac particle size distribution measuring device (product name: MT3200II) manufactured by N...

manufacture example 1

[0146] As the refractory aggregate, commercially available artificial sand for foundry, LUNAMOS#60 (trade name, manufactured by Kao Quaker Co., Ltd.), and commercially available No. 2 sodium silicate (trade name, manufactured by Fuji Chemical Co., Ltd.) were prepared. , SiO 2 / Na 2 Molar ratio of O: 2.5, solid content: 41.3%) as water glass used as a water-soluble inorganic binder, and a powder of magnetite (spherical, average particle diameter: 0.25 μm) to be used as an iron-containing compound ). Add magnets in an amount equivalent to 0.125 parts per 100 parts of aggregate (LUNAMOS#60) to water glass in an amount equivalent to 1.0 parts (solid content: 0.41 parts) per 100 parts of aggregate (LUNAMOS #60) ore powder, and mixed to form a liquid mixture, 100 parts of the aggregate (LUNAMOS#60) was directly put into a Shinagawa-type universal mixer (5DM-r type, manufactured by DALTON CORPORATION) at room temperature, and the above-mentioned prepared The liquid mixture (the po...

manufacture example 2

[0148] Except that the addition amount of the powder of magnetite was 0.25 parts, a wet mold material: CS2 was obtained in the same procedure as in the above-mentioned Production Example 1. As a result of calculating the water content of the obtained CS2, it was an amount corresponding to 140% by mass of the solid content of water glass.

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

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
particle sizeaaaaaaaaaa
melting pointaaaaaaaaaa
Login to View More

Abstract

The present invention provides a mold material that enables a mold, which is a final product of the mold material, to suppress adhesion of the mold material and / or a solidified product thereof to a molded article, while having excellent mold strength and excellent mold fillability. The mold material is configured to contain at least (a) a refractory aggregate, (b) a water-soluble inorganic binderand (c) a powder of an iron-containing compound; and the powder of an iron-containing compound has an average particle diameter of 0.01 [mu]m or more but less than 50 [mu]m.

Description

technical field [0001] The present invention relates to a casting mold material and its manufacturing method, a casting mold manufacturing method, and a regeneration method of reclaimed refractory aggregate, and particularly relates to: the adhesion of the casting mold material and / or its cured product to the cast product in the finally obtained casting mold A mold material that is suppressed and exhibits excellent mold strength and mold fillability. Background technique [0002] Conventionally, as one of molds used for casting of molten metal, one obtained by using coated sand as a mold material and molding it into a target shape to obtain the mold that will be formed of refractory aggregates is used Molding sand is covered with a specified binder. Specifically, pages 78 to 90 of "Foundry Engineering Handbook" edited by the Japan Foundry Engineering Society clarify that as a binder in such coated sand, in addition to inorganic binders such as water glass, it is also clarif...

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): B22C1/18B22C9/12
CPCB22C1/18B22C9/12
Inventor 高间智宏
Owner ASAHI YUKIZAI KOGYO CO LTD
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