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Wear-resistant zirconium-aluminum composite ball and preparation method thereof

A technology of wear-resistant zirconium-aluminum and composite balls, which is applied in the field of ceramic balls, can solve the problems of difficult marketing, high raw material costs, and high costs, and achieve optimal reuse, good mechanical properties, and low cost.

Inactive Publication Date: 2021-12-17
萍乡市金刚科技工业园有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although it has the advantages of high strength and high toughness, its high cost also makes its current market promotion difficult
For example, the Chinese invention patent with application number 201810958754.6 discloses high wear-resistant zirconium-aluminum composite balls and its production process. The mass parts of each component in the formula are as follows: 95%≥Al 2 o 3 ≥80%; 15%≥ZrO 2 ≥3%; 7%≥Y 2 o 3 +SiO2 2 +CeO 2 ≥1%; 6%≥CaO+MgO≥1%, the raw materials used are fine powder and rare earth material Y 2 o 3 etc., the raw material cost is too high

Method used

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  • Wear-resistant zirconium-aluminum composite ball and preparation method thereof

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preparation example Construction

[0048] Correspondingly, the preparation method of the wear-resistant zirconium-aluminum composite ball includes the following steps:

[0049] S1. Preform ball milling: Add the raw materials of wear-resistant zirconium-aluminum composite balls into the ball mill according to the proportion, add the dispersion solution and mix evenly to obtain the slurry;

[0050] S2. Drying and granulating: granulating the slurry to obtain dry powder;

[0051] S3. Forming and drying: dry the powder after cold isostatic pressing or pellet forming to make green balls;

[0052] S4. Sintering: the green balls are sintered in a kiln, and taken out after the kiln is cooled to obtain wear-resistant zirconium-aluminum composite balls.

[0053] The preparation method of the wear-resistant zirconium-aluminum composite ball provided by the present invention has a simple process, uses a variety of solid wastes as raw materials, and can realize the comprehensive utilization of solid wastes. The following i...

Embodiment 1

[0072] Wear-resistant zirconium-aluminum composite ball and preparation method thereof,

[0073] The raw material formula is (by mass fraction): 68% of industrial alumina powder, 25% of waste zirconium corundum powder, 1% of talc, 5% of dolomite, and 1% of bentonite.

[0074] The chemical composition is calculated by mass fraction: Al 2 o 3 81.6%, ZrO 2 7.6%, SiO 2 5.2%, CaO 1.7%, MgO 1.4%, K 2 O 0.5%, Na 2 O 0.7%.

[0075] The preparation method of the wear-resistant zirconium-aluminum composite ball comprises the following steps:

[0076] S1. Preform ball milling: Weigh the raw materials into the ball mill according to the proportion, add water, polyacrylamide and polyvinyl alcohol PVA, wherein the amount of polyacrylamine added is 0.2%, and the amount of polyvinyl alcohol added is 0.2%. 0.4%, the rest is water. Ball mill for several hours to make the slurry particle size D90≤6μm.

[0077] S2. Drying and granulation: sending the slurry into a spray granulation to...

Embodiment 2

[0081] The raw material formula is (by mass fraction): 74% of industrial alumina powder, 20% of waste zirconium corundum powder, 5% of dolomite, and 1% of bentonite.

[0082] The chemical composition is calculated by mass fraction: Al 2 o 3 85.2%, ZrO 2 6.1%, SiO 2 4.9%, CaO 1.6%, MgO 1.7%, K 2 O 0.5%, Na 2 O 0.7%.

[0083] The preparation method of the wear-resistant zirconium-aluminum composite ball includes the following steps:

[0084] S1. Ingredients ball mill: Weigh the raw materials into the ball mill according to the proportion, add water, polyacrylamide and polyvinyl alcohol PVA, wherein the addition amount of polyacrylamine is 0.2% and the amount of polyvinyl alcohol is 0.4% in terms of mass fraction , and the rest is water. Ball mill for several hours to make the slurry particle size D90≤5μm.

[0085] S2. Drying and granulation: sending the slurry into a spray granulation tower for granulation to obtain dry powder.

[0086] S3. Forming and sintering: the...

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Abstract

The invention discloses a wear-resistant zirconium-aluminum composite ball and a preparation method thereof. The wear-resistant zirconium-aluminum composite ball is prepared from alumina powder, waste fused alumina zirconia powder and a sintering aid, and comprises the following chemical components by mass: 75-90% of Al2O3, 1-15% of ZrO2, 1-6% of SiO2, 1-5% of CaO + MgO + rare earth, and 0-2% of K2O + Na2O. According to the invention, the wear-resistant zirconium-aluminum composite ball is good in wear resistance and mechanical performance, low in raw material cost and rich in raw material source, and solid waste utilization can be achieved.

Description

technical field [0001] The invention relates to the field of ceramic balls, in particular to a wear-resistant zirconium-aluminum composite ball and a preparation method thereof. Background technique [0002] Ball milling process is an important basic component of modern industry. Grinding media balls are among the most consumed consumables. At present, alumina grinding ball is the most widely used ceramic grinding medium material, and it is widely used in architectural ceramics, daily ceramics, electronic ceramics, cement mines and other fields. [0003] At present, the alumina grinding balls used in the domestic market are mostly single alumina ceramic balls, which have obvious ball breaking phenomenon during use, which greatly reduces their application in continuous ball mills. Broken balls will lead to unbalanced size distribution of grinding media and affect the efficiency of ball milling. At the same time, the wear caused by broken balls is much higher than that unde...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/119C04B35/622C09K3/14
CPCC04B35/119C04B35/62204C09K3/14C04B2235/77C04B2235/786C04B2235/94C04B2235/96C04B2235/6562C04B2235/6567C04B2235/349C04B2235/321C04B2235/3454C04B2235/3206C04B2235/3481C04B2235/3208C04B2235/3232
Inventor 杨海涛夏维煌黄旭高唐彦军唐涛
Owner 萍乡市金刚科技工业园有限公司
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