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Flameproof surface phosphating process and used phosphating solution

A technology of phosphating treatment and explosion-proof surface, which is applied in the field of phosphating solution, can solve the problems of explosion-proof surface corrosion, performance reduction, and high production cost, and achieve the effects of reducing labor intensity, prolonging the service life, and improving safety

Inactive Publication Date: 2014-07-02
CHANGZHOU LIANLI AUTOMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the development of science and technology and the improvement of industrial product requirements, the surface coating of electrical equipment used in mines has higher requirements. Due to the erosion of underground humid air and harmful gases doped in the air, the surface of electrical equipment is not For a long time, the explosion-proof surface will produce chemical changes, that is, the explosion-proof surface will be corroded, the performance will be reduced, and even the explosion-proof function will be lost, which will affect the safe production in the mine. The existing treatment method is to coat the explosion-proof surface with Metal layers such as zinc are used to prevent rust and corrosion, but this process is complicated, the production cost is high, and the cycle is long. Although phosphating treatment is also used, the effect is not very ideal

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Flameproof surface phosphating treatment process, including the following steps,

[0034] The first step is to prepare phosphating slurry:

[0035] (1). Put 10kg of warm water at 35C in a plastic container;

[0036] (2). Weigh basic copper carbonate CuCO 3 Cu(OH) 2 XH 2 060 grams are poured into the above-mentioned plastic container filled with water and blended;

[0037] (3). Measure 290ml of nitric acid with a density of 1.4g / ml and pour it into a plastic container for mixing;

[0038] (4). Measure 830ml of phosphoric acid with a density of 1.69g / ml and pour it into a plastic container for blending;

[0039] (5). Weigh 540 grams of zinc oxide and pour it into a plastic container for blending;

[0040] (6). Weighing hexamethylenetetramine C 6 h 12 N 4 70 grams, pour into a plastic container to reconcile;

[0041] (7). Weigh 110 grams of sodium fluoride and pour it into a plastic container to reconcile;

[0042] (8). Weigh zinc nitrate Zn(NO 3 ) 2 6H 2 O79...

Embodiment 2

[0057] Flameproof surface phosphating treatment process, including the following steps,

[0058] The first step is to prepare phosphating slurry:

[0059] (1). Fill 10kg of warm water at 40C° in a plastic container;

[0060] (2). Weigh basic copper carbonate CuCO 3 Cu(OH) 2 XH 2 070 grams, pour in the plastic container of above-mentioned water and carry out reconciliation;

[0061] (3). Measure 300ml of nitric acid with a density of 1.4g / ml and pour it into a plastic container for mixing;

[0062] (4). Measure 840ml of phosphoric acid with a density of 1.69g / ml and pour it into a plastic container for blending;

[0063] (5). Weigh 540-560 grams of zinc oxide and pour it into a plastic container for reconciliation;

[0064] (6). Weighing hexamethylenetetramine C 6 h 12 N 4 70-90 grams, pour into a plastic container to reconcile;

[0065] (7). Weigh 120 grams of sodium fluoride and pour it into a plastic container to reconcile;

[0066] (8). Weigh zinc nitrate Zn(NO ...

Embodiment 3

[0082] Flameproof surface phosphating treatment process, including the following steps,

[0083] The first step is to prepare phosphating slurry:

[0084] (1). Fill 10kg of warm water at 45C° in a plastic container;

[0085] (2). Weigh basic copper carbonate CuCO 3 Cu(OH) 2 XH 2 080 grams are poured into the above-mentioned plastic container filled with water and blended;

[0086] (3). Measure 310ml of nitric acid with a density of 1.4g / ml and pour it into a plastic container for mixing;

[0087] (4). Measure 850ml of phosphoric acid with a density of 1.69g / ml and pour it into a plastic container for blending;

[0088] (5). Weigh 560 grams of zinc oxide and pour it into a plastic container for blending;

[0089] (6). Weighing hexamethylenetetramine C 6 h 12 N 4 90 grams, pour into a plastic container to reconcile;

[0090] (7). Weigh 130 grams of sodium fluoride and pour it into a plastic container to reconcile;

[0091] (8). Weigh zinc nitrate Zn(NO 3 ) 2 6H 2 O...

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PUM

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Abstract

The invention relates to the technical field of flameproof surface treatment processes, and in particular relates to a flameproof surface phosphating process for electrical equipment. The process comprises the steps of preparing phosphating slurry: accommodating warm water with a plastic container, sequentially adding basic copper carbonate, nitric acid, phosphoric acid, zinc oxide, hexamethylene tetramine, sodium fluoride and zinc nitrate, and adding the prepared phosphating solution into talc powder to form paste; brushing the prepared phosphating solution slurry on a flameproof surface in a manner that the thickness of the slurry is not less than 2mm; ensuring the retention time of the phosphating solution slurry on the flameproof surface according to the ambient temperature and the following standards, and wiping the phosphating solution slurry on the flameproof surface, thus phosphating the flameproof surface, namely forming a layer of phosphating film on the flameproof surface. The flameproof surface treated through the phosphating process provided by the invention can not be rusted over more than two years, so that the use safety of underground equipment is greatly improved.

Description

technical field [0001] The technical field of the explosion-proof surface treatment process of the present invention, in particular relates to a flame-proof surface phosphating treatment process of electrical equipment and the phosphating solution used. Background technique [0002] With the development of science and technology and the improvement of industrial product requirements, the surface coating of electrical equipment used in mines has higher requirements. Due to the erosion of underground humid air and harmful gases doped in the air, the surface of electrical equipment is not For a long time, the explosion-proof surface will produce chemical changes, that is, the explosion-proof surface will be corroded, the performance will be reduced, and even the explosion-proof function will be lost, which will affect the safe production in the mine. The existing treatment method is to coat the explosion-proof surface with Metal layers such as zinc are used to prevent rust and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C22/36C23C22/73
Inventor 顾志峰王静悦倪丽萍张权梁斌
Owner CHANGZHOU LIANLI AUTOMATION TECH
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