Collapse enhancer for water glass sand

A technology of water glass sand and reinforcing agent, which is applied to casting molding equipment, molds, cores, etc., can solve the problems of poor collapsibility and deterioration of sand mold performance, and achieve the effects of improving collapsibility, reducing residual strength and increasing molding sand strength

Active Publication Date: 2016-06-01
JINAN SHENGQUAN GROUP SHARE HLDG
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Some other traditional collapsing agents solve the collapsibility at the expense of the strength of the sand mold, resulting in further deterioration of the performance of the sand mold
In view of the above problems, therefore, it has become a current research hotspot to develop a new type of collapsible enhancer for water glass sand to solve the problem of its poor collapsibility.

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
  • Collapse enhancer for water glass sand
  • Collapse enhancer for water glass sand
  • Collapse enhancer for water glass sand

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Weigh 74 grams of quartz powder and add it into the mixing bucket, and stir evenly. Take by weighing 9.8 grams of graphite powder with a particle diameter of 500 mesh, 0.2 grams of graphene, 10 grams of aluminum oxide powder with a particle diameter of 500 mesh, 5 grams of lithium-based bentonite, and 1 gram of organic silicon surfactant, and add them in the mixing tank successively and mix To uniformity, obtain the water glass collapsing enhancer.

Embodiment 2-5

[0037] Its preparation method is the same as that of Example 1, except that the raw material components and their addition amounts are the same, and the specific components and proportions are shown in Table 1.

[0038] Table 1

[0039]

[0040] The water glass collapsing enhancer prepared in Examples 1-10 was added to standard sand and water glass respectively below, and samples 1-10 were prepared respectively to test its performance.

[0041] Take 10 parts of 2kg50 / 100 mesh Dalin standard sand, add 60g of sodium water glass to each part, and correspondingly add 20g of the water glass collapsing enhancer prepared in Example 1-10, stir with SHY resin sand sand mixer for 90 seconds After discharge, 10 parts of mixed material were obtained.

[0042] 10 parts of the mixture were heated at 160°C for 60 seconds (the core-making equipment is A1 warm core box sample machine produced by Suzhou Meiji Technology), and seven samples with a diameter of 50mm and a height of 50mm were p...

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 size (mesh)aaaaaaaaaa
thicknessaaaaaaaaaa
Login to view more

Abstract

The invention relates to a collapsibility enhancer for sodium silicate-bonded sand. Raw material components of the collapsibility enhancer for the sodium silicate-bonded sand comprise silicon dioxide, alumina and graphene. The inventor creatively adopts a mixture of the silicon dioxide, the alumina and the graphene as the collapsibility enhancer; no organic matters are contained in the collapsibility enhancer, so that no combustible gases generate; more importantly, the situation that the sodium silicate-bonded sand which takes sodium silicate, potassium silicate and lithium silicate as main bodies and is used for casting is difficult to clean after the sodium silicate-bonded sand is cast can be greatly improved; the collapsibility of the sodium silicate-bonded sand is remarkably improved, and the strength of molding sand of the sodium silicate-bonded sand is obviously improved. According to the collapsibility enhancer disclosed by the invention, on the premise that the organic matters are not added and the gas evolution of a sand core is not improved, the collapsibility of an inorganic binder taking the sodium silicate-bonded sand as a main component is greatly improved, the retained strength of the inorganic binder is greatly reduced, and the strength of the sodium silicate-bonded sand is improved.

Description

technical field [0001] The invention relates to the technical field of foundry sand modification, in particular to a collapse enhancer for water glass sand and a preparation method thereof. Background technique [0002] Castings are the basic parts of the equipment manufacturing industry. China is the largest foundry country in the world. Most of these castings are produced by self-setting sand for molding and core making. Among them, furan resin self-setting sand has a wide range of applications. The harm of resin self-setting sand to the ecological environment and labor conditions has attracted people's attention day by day. [0003] For a long time, the inorganic binder system based on sodium silicate, potassium silicate and lithium silicate, that is, water glass, is currently the casting binder with the least environmental pollution, and is recognized as a green and environmentally friendly material by the foundry industry. As a casting binder, water glass has wide sour...

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): B22C1/02
CPCB22C1/02
Inventor 祝建勋许增彬巩传诚
Owner JINAN SHENGQUAN GROUP SHARE HLDG
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap