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Iron sand and preparation process thereof

A manufacturing process, iron sand technology, applied in the field of iron sand and its manufacturing process, can solve the problems of no way to recycle, difficult production and processing, pollution of the environment, etc., to achieve easy organization of large-scale production, save sandblasting costs, and reduce the environment pollution effect

Active Publication Date: 2015-07-08
郭斐
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Zirconium contained in ceramic sand is one of the high-melting point metals. It is difficult to produce and process, the price is high, and the loss is high during use. Moreover, there is no way to economically recycle and reuse after use, which pollutes the environment.

Method used

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  • Iron sand and preparation process thereof
  • Iron sand and preparation process thereof
  • Iron sand and preparation process thereof

Examples

Experimental program
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Effect test

no. 1 example

[0035] The particle size of the iron sand particles contained in the iron sand is greater than 0 μm and not greater than 125 μm. The particle size distribution of iron sand particles contained in iron sand is as follows: the weight ratio of iron sand particles with a particle size greater than 75 μm is 20%; the weight ratio of iron sand particles with a particle size not greater than 75 μm and greater than 50 μm is 40%; The weight ratio is 30%; the weight ratio of iron sand particles with a particle size not greater than 28 μm is 10%. The loose specific gravity of iron ore is not less than 3.5 g / cubic centimeter and not more than 4.9 g / cubic cm.

[0036] The manufacturing process of iron sand in the first embodiment includes a reduction step, an iron sand shaping step, an iron sand screening step, and an iron sand mixing step.

[0037] The reduction step is carried out before the iron sand shaping step, and is used for decarbonizing and deoxidizing the iron powder.

[0038] ...

no. 2 example

[0042] The particle size of the iron sand particles contained in the iron sand is greater than 0 μm and not greater than 125 μm. The particle size distribution of iron sand particles contained in iron sand is as follows: the weight ratio of iron sand particles with a particle size greater than 75 μm is 5%; the weight ratio of iron sand particles with a particle size not greater than 75 μm and greater than 50 μm is 50%; The weight ratio is 35%; the weight ratio of iron sand particles with a particle size not greater than 28 μm is 10%. The loose specific gravity of iron ore is not less than 3.5 g / cubic centimeter and not more than 4.9 g / cubic cm.

[0043] The iron sand manufacturing process of the second embodiment includes a reduction step, an iron sand shaping step, an iron sand screening step, and an iron sand mixing step.

[0044] The reduction step is carried out before the iron sand shaping step, and is used for decarbonizing and deoxidizing the iron powder.

[0045] In ...

no. 3 example

[0049] The particle size of the iron sand particles contained in the iron sand is greater than 0 μm and not greater than 125 μm. The particle size distribution of iron sand particles contained in iron sand is as follows: the weight ratio of iron sand particles with a particle size greater than 75 μm is 0; the weight ratio of iron sand particles with a particle size not greater than 75 μm and greater than 50 μm is 98%; The ratio is 1%; the weight ratio of iron sand particles with a particle size not greater than 28 μm is 1%. The loose specific gravity of iron ore is not less than 3.5 g / cubic centimeter and not more than 4.9 g / cubic cm.

[0050] The iron sand manufacturing process of the third embodiment includes a reduction step, an iron sand shaping step, an iron sand screening step, and an iron sand mixing step.

[0051] The reduction step is carried out before the iron sand shaping step, and is used for decarbonizing and deoxidizing the iron powder.

[0052] In the iron sa...

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Abstract

The invention relates to iron sand and a preparation process thereof, wherein the iron sand comprises iron sand granules according to the following granularity distribution, by weight: 0-25% of the iron sand granules being higher than 75 [mu]m in granularity; 1-55% of the iron sand granules being higher than 28 [mu]m and not more than 50 [mu]m in granularity; 1-15% of the iron sand granules being not more than 28 [mu]m in granularity; and the balanced being the iron sand granules being not more than 75 [mu]m and higher than 50 [mu]m. The iron sand is simple in process and is easy to produce in large scale. The iron sand, after being used, can be recycled for being smelted again, thereby reducing environmental pollution. The iron sand can reach a sand blast effect being same as ceramic sand while the consumption of the iron sand is only about half of that of the ceramic sand, so that the sand blast cost can be greatly reduced, thereby achieving great economic benefit. The iron sand is less than the ceramic sand in the generated dust during sand blast, so that improving the work environment and reducing harm on worker body.

Description

technical field [0001] The invention relates to materials used for sandblasting, in particular to iron sand and its manufacturing process. Background technique [0002] In the existing market, sandblasting treatment is required for some aluminum-magnesium alloys with high requirements (for example, the roughness Ra is required to be between 0.4 and 1.2, with smooth touch and good consistency, especially mobile phones such as iphone5 or iphone6). Generally, ceramic sand is used as the blasting medium (see figure 1 ). Zirconium contained in ceramic sand is one of the high-melting-point metals. It is difficult to produce and process, the price is high, and the loss is high during use. Moreover, there is no way to economically recycle and reuse after use, which pollutes the environment. Contents of the invention [0003] The object of the present invention is to overcome the defects of the prior art, and provide a kind of iron sand to replace the ceramic sand as the blasting...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/14
Inventor 郭斐
Owner 郭斐
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