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Method for preparing flexible lead powder

A lead powder and flexible technology, applied in the field of preparation of flexible lead powder, can solve the problems of changing the physical properties of lead powder, destroying the natural lead powder, failing to achieve the use effect, etc. Effect

Inactive Publication Date: 2012-05-16
赵强
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  • Abstract
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Problems solved by technology

[0002] Lead powder is a raw material with a wide range of uses. It can be mixed with other reagents to make a mixed liquid and spray it on the surface of the article. It can play a variety of functions such as corrosion resistance, beauty, and heat resistance. There are many methods, generally using concentrated sulfuric acid, concentrated nitric acid and other strong oxidants for acidification treatment, and then washing, filtering, and drying until fine lead powder is obtained. However, these methods generally cause great damage to natural lead powder and are easy to use. Its internal mechanism changes, thereby changing the physical characteristics of the lead powder itself, so that the ideal use effect cannot be achieved. Therefore, the present invention aims at the shortcomings of the current lead powder refinement technology, and proposes a simple, feasible, and efficient The preparation method of lead powder has the advantages of low cost, low energy consumption and no pollution

Method used

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Embodiment Construction

[0012] A preparation method of flexible lead powder, characterized in that: it is prepared by the following preparation method:

[0013] (1) select diesel oil as the high-temperature catalyst, put the coarse lead block into the puffing furnace and add diesel oil spray;

[0014] (2) After expanding in the puffing furnace, stand still for 15-20 hours under normal temperature at 15-20 degrees Celsius and under normal pressure;

[0015] (3) Put it into a shrinking machine and shrink it to make silky and delicate lead powder.

[0016] The lead powder expands to 350 times its original volume.

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Abstract

The invention discloses a method for preparing flexible lead powder; the preparation method disclosed by the invention comprises the following steps of: choosing diesel as a high-temperature catalyst, putting a coarse lead brick into a bulking furnace and adding diesel spray; expanding the lead brick in the bulking furnace and standing at the normal temperature and the normal pressure; putting into a shrinking machine to shrink, and making into soft and fine lead powder. The preparation method solves the problems that the current method for preparing lead powder has the advantages of cumbersome and complex process during the pretreatment, low cost, large energy consumption and serious pollution; in the invention, the structure of the lead powder is not changed, and meanwhile, the utilization rate of the lead powder is improved greatly.

Description

technical field [0001] The invention relates to a method for preparing flexible lead powder, belonging to the technical field of lead powder preparation Background technique [0002] Lead powder is a raw material with a wide range of uses. It can be mixed with other reagents to make a mixed liquid and spray it on the surface of the article. It can play a variety of functions such as corrosion resistance, beauty, and heat resistance. There are many methods, generally using strong oxidizing agents such as concentrated sulfuric acid and concentrated nitric acid for acidification treatment, and then washing, filtering, and drying until fine lead powder is obtained, but these methods generally cause great damage to natural lead powder and are easy to use. Its internal mechanism changes, thereby changing the physical characteristics of the lead powder itself, so that the ideal use effect cannot be achieved. Therefore, the present invention aims at the shortcomings of the current l...

Claims

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Application Information

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IPC IPC(8): B22F9/04
Inventor 赵强
Owner 赵强
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