Sodium silicate sand with high wet-compressive strength and preparation method thereof

A technology of wet compressive strength and water glass sand, which is applied in the direction of manufacturing tools, casting molding equipment, metal processing equipment, etc., can solve the problems of low wet compressive strength, difficulty in mold removal and repair, and unsatisfactory conditions, and achieve wet compressive strength High, easy to mold and repair, reduce the effect of casting rejection rate

Inactive Publication Date: 2014-02-12
TONGLING JINGWEI FLUID SCI & TECH
View PDF6 Cites 30 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most steel castings and large iron castings are produced by water glass sand process. Although water glass sand has many advantages, it still has the disadvantage of lo

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

[0016] A kind of water glass sand with high wet compressive strength, made of the following raw materials (kg): silica sand 60, corundum 40, limestone 12, bentonite 6, bauxite 4, modified water glass 5, gum arabic powder 2, Dioctyl phthalate 1.5, lithium slag powder 3, talc powder 2, gypsum 2, triisopropanolamine 1.5, stearic acid 0.8, water 4;

[0017] The preparation method of described modified water glass is as follows:

[0018] (1) Weigh the following raw materials (kg): water glass 25, water-soluble starch 5, dextrin 3, urea 3, sodium sulfite 2, sodium polyacrylate 4, potassium dihydrogen phosphate 3, xylitol 1, polyisobutene 2. Calcium lignosulfonate 4, polyoxyethylene abietic acid 2, sodium carboxymethyl cellulose 1, vermiculite 4, sepiolite 3, nano-alumina 2, jade powder 1.5, plant ash 2, calcium chloride 1.5 , sodium chloride 0.6, bis(dioctyloxypyrophosphate) ethylene titanate 0.5;

[0019] (2) Mix vermiculite and sepiolite, crush them through a 100-mes...

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 sodium silicate sand with high wet-compressive strength and a preparation method thereof. The sodium silicate sand with high wet-compressive is prepared from the following raw materials in parts by weight: 55-75 parts of silica sand, 30-40 parts of carborundum, 10-15 parts of limestone, 5-8 parts of bentonite, 3-6 parts of bauxite, 4-7 parts of modified sodium silicate, 2-3 parts of Arabic gum powder, 1-2 parts of dioctyl phthalate, 3-4 parts of lithium slag powder, 2-3 parts of talcum powder, 1.5-2.5 parts of gypsum, 1-2 parts of triisopropanolamine, 0.5-1 part of stearic acid and 3-5 parts of water. The sodium silicate sand disclosed by the invention is high in wet-compressive strength, easy to draw and repair, so that process requirements of drawing and then curing are completely satisfied. Moreover, the sodium silicate sand has good mobility, low gas evolution rate, good gas permeability and good collapsibility, can be used for remarkably improving the quality of a casting piece and lowering the rejection rate of the casting piece.

Description

technical field [0001] The invention relates to water glass sand with high wet compressive strength and a preparation method thereof, belonging to the technical field of molding sand. Background technique [0002] In the past, clay molding sand was used in the production of large and medium-sized castings. After the mold was made, it was sent to a drying furnace for drying. The production cycle was long, the precision of the castings was poor, and the working conditions were poor, which was far from meeting the needs of production development. Sodium silicate sand has become one of the fastest-growing types of molding sand in recent decades due to its high fluidity, high compaction rate, fast hardening, high casting precision, wide source, low price, and environmental protection. At present, most steel castings and large iron castings are produced by water glass sand process. Although water glass sand has many advantages, it still has the disadvantage of low wet compressive ...

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): B22C1/00
Inventor 吴寿涛
Owner TONGLING JINGWEI FLUID SCI & TECH
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