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Anticaking agent for alkali metal titanates and manufacturing method thereof

An anti-caking agent and titanate technology, applied in the field of anti-caking agent of alkali metal titanate and alkali metal titanate used in flux-cored welding wire, which can solve the problem of decreased fluidity of powder and loss of fluidity of powder. , component content deviation, etc.

Inactive Publication Date: 2011-06-15
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moisture absorption itself will lead to a decrease in the fluidity of the powder, and severe moisture absorption will also lead to a serious deviation of the component content, which not only affects the performance of the product, but also affects the application performance
And hardening will make the powder lose fluidity, which will aggravate the impact on the performance of the powder

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] The anti-caking agent composed of calcium stearate and magnesium oxide is added to the 40-100 mesh potassium sodium titanate composite titanate product, so that the content of the former component in the anti-caking agent is 1%, and the latter The dosage of the components is 2%, and the dry ball milling is carried out for 3 hours. The water absorption rate drops from 9% without treatment to 1.7%, without caking. Bulk density from 1.37g / cm 3 increased to 1.69g / cm 3 .

Embodiment 2

[0013] Add the anti-caking agent made of paraffin and white carbon black to the 80-120 mesh potassium titanate product, the addition amount of the two components of the anti-caking agent is 1%, and the dry mixing with jacket heating is adopted Machine, 90 ℃ mixing 1h. Take out to cool quickly, wrap. The water absorption rate drops from 3.5% without treatment to 1.1%, without caking. Bulk density from 1.43g / cm 3 increased to 1.77g / cm 3 .

Embodiment 3

[0015] Take the anti-caking agent prepared by APG and fumed silica, add it to the 80-120 mesh potassium titanate product, the addition amount of the two components of the anti-caking agent is 1%, and use a dry Method mixer, 70 ℃ mixing 1h. Take out to cool quickly, wrap. Water absorption dropped from 2.6% without treatment to 0.9%, no caking. Bulk density from 1.41g / cm 3 increased to 1.66g / cm 3 .

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PUM

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Abstract

The invention provides an anticaking agent for alkali metal titanates and a manufacturing method thereof. The anticaking agent is prepared from one or more of a blocker, a moisture-proof agent, a dispersing agent and a surfactant. Applied to the alkali metal titanate powder special for welding rods, the anticaking agent can effectively prevent moisture absorption and hardening, avoid the problem of poor fluidity and dispersibility caused by moisture absorption and hardening, improve the bulk density of the powder, has no negative effect on application of the alkali metal titanates to the welding rods and even has certain auxiliary effect. The anticaking agent has the advantages of conveniently and easily obtained raw materials, simple processing procedures, obvious effect and the like. Two or more components can be mixed to prepare the anticaking agent under the condition of certain temperature.

Description

technical field [0001] The invention relates to an anti-caking agent of alkali metal titanate, which is suitable for welding rods, especially alkali metal titanate used in flux-cored wires. This aspect also relates to the use method of the anti-caking agent and its application in alkali metal titanate for welding rods or flux-cored wires, belonging to the technical field of chemical auxiliary production. Background technique [0002] Alkali metal titanate powder is widely used in the welding rod industry, but because the raw materials of alkali metal titanate are mostly metal salts or strong alkaline substances such as alkalis, they are not compatible with TiO 2 It is sintered at high temperature, so the alkali balance of general products is relatively large. The strong moisture absorption of salt and alkali is the main reason for the serious moisture absorption of alkali metal titanates. Secondly, the hygroscopicity of the raw material system and different products is als...

Claims

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Application Information

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IPC IPC(8): B01F17/00B01J2/30C09K23/00
Inventor 商少明宋秀梅王慧刘瑛孙芳任春霞
Owner JIANGNAN UNIV
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