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Process for preparing silicon-calcium-magnesium whisker

A silicon-calcium-magnesium whisker and dispersion technology is applied in the field of preparation of whisker materials, which can solve the problems of difficult control of process conditions, high raw material cost and manufacturing cost, and difficulty in entering industrial and civil markets.

Inactive Publication Date: 2006-06-07
四川仁智新材料科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The excellent performance of whiskers makes its application potential great, but the traditional whisker preparation method has high raw material cost, complicated production process, and difficult control of process conditions
Traditional whisker preparation methods: At present,

Method used

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  • Process for preparing silicon-calcium-magnesium whisker

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Embodiment Construction

[0016] Content of the present invention is: a kind of preparation method of silicate whisker, it is characterized in that described technique is:

[0017] Raw ore crushing: the tremolite ore is crushed in two stages of jaw crushing and roller crushing;

[0018] Screening: pass the crushed ore through a vibrating screen to remove impurities and unqualified particles in the mine;

[0019] Wet dispersion: transport the screened mineral particles to the dispersion tank with a conveyor belt, add water and dispersant for dispersion;

[0020] Purification and removal of impurities: remove the hard silica and soft clay and other impurities contained in the raw ore, and purify the dispersed slurry through purification equipment such as jumping screens, sand settling trays, and desanders;

[0021] Chemical cultivation: put the purified slurry into the cultivation tank, add chemical additives for whisker cultivation;

[0022] Dehydration: Pump the cultivated slurry into the dehydration...

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Abstract

The present invention relates to whisker producing process, and especially process of preparing Si-Ca-Mg whisker with great length/diameter ratio, stable performance and low production cost. The Si-Ca-Mg whisker preparing process includes the technological steps of: crushing ore, sieving, wet dispersing, purifying, chemical culturing, dewatering and drying. The present invention aims at providing one superior Si-Ca-Mg whisker preparing process with low cost, simple operation and easy control.

Description

Technical field: [0001] The invention relates to a method for producing whiskers, in particular to a method for preparing whisker materials with large aspect ratio, stable performance and low production cost. Background technique [0002] Whiskers refer to micron or submicron single crystals in the form of short fibers with an aspect ratio L / d≥10. Usually L is about 10um-100um, d is about 0.01-10um, and the typical value is about 1μm, which is a single crystal with one-dimensional dominant development. It has few lattice defects and is the strongest solid known so far, and its strength is close to the theoretical value. Whiskers have excellent mechanical properties, such as high mechanical strength, can elastically withstand large strains without permanent deformation, have little loss of strength at high temperature, and have no fatigue effect. Whiskers have micro-reinforcement and filling capabilities, and their tiny size does not affect the molding fluidity of composite...

Claims

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Application Information

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IPC IPC(8): C30B29/62C30B7/00
CPCC30B7/00
Inventor 孙传敏汪建军钱忠良雷斌尹显庸
Owner 四川仁智新材料科技有限责任公司