Phosphorus-free nano vitrification agent, and preparation method and application thereof

A kind of vitrifying agent and nanotechnology, applied in the direction of metal material coating process, etc., can solve the problems of non-compliance with national environmental protection policies, increase customer use costs, reduce product competitiveness, etc., to reduce environmental burden, prolong corrosion resistance time, The effect of increasing the adhesion of paint

Active Publication Date: 2014-07-23
HUNAN JINYU ENVIRONMENTAL PROTECTION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this patent has the following disadvantages: the rare earth cerium salt contains heavy metal elements, so the formula does not comply with the national environmental protection policy and cannot gain a place in the future market competition
However, this patent has the following disadvantages: no stabilizer is added to this formula, which will cause frequent instability in the quality of the product during use, and even when the technical indicators are within the range, the ceramic film cannot be formed on the metal surface
However, this patent has the following disadvantages: although the formula can form a film, the battery life is limited, that is to say, the cycle of changing the tank and reconfiguring the tank is greatly shortened, which increases the cost of use for customers and reduces the competitiveness of the product in the market.

Method used

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  • Phosphorus-free nano vitrification agent, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Every 1000Kg non-phosphorus nano-ceramic agent is made of the following raw materials:

[0051]Fluozirconic acid 30 Kg, zirconium oxychloride 30 Kg, ammonium fluozirconate 1 Kg, tartaric acid 8 Kg, sodium nitrate 5 Kg, water 926 Kg.

[0052] Its preparation method comprises the following steps in turn:

[0053] (1 add water in the reactor;

[0054] (2) Add fluozirconic acid into the reaction kettle, and then stir for 1-1.5 hours;

[0055] (3) Add zirconium oxychloride into the reaction kettle, and then stir until it is completely dissolved, the time is 1-3 hours;

[0056] (4) Add ammonium fluozirconate into the reaction kettle, stir evenly and make the solution clear, the time is 0.5-1.5 hours;

[0057] (5) Add tartaric acid into the reaction kettle, stir evenly and make the solution clear, the time is 0.5-1.5 hours;

[0058] (6) Add sodium nitrate into the reaction kettle, stir evenly and make the solution clear, the time is 20-40 minutes;

[0059] (7) Check the p...

Embodiment 2

[0069] Every 1000Kg non-phosphorus nano-ceramic agent is made of the following raw materials:

[0070] Fluozirconic acid 40 Kg, zirconium oxychloride 40 Kg, ammonium fluozirconate 3 Kg, tartaric acid 9 Kg, sodium nitrate 6 Kg, water 902 Kg.

[0071] The preparation method and metal processing steps are the same as in Example 1.

[0072]

Embodiment 3

[0074] Every 1000Kg non-phosphorus nano-ceramic agent is made of the following raw materials:

[0075] Fluozirconic acid 50 Kg, zirconium oxychloride 50 Kg, ammonium fluozirconate 4 Kg, tartaric acid 9 Kg, sodium nitrate 7 Kg, water 880 Kg.

[0076] The preparation method and metal processing steps are the same as in Example 1.

[0077]

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Abstract

The invention relates to the field of metal surface treatment agents, and relates to a phosphorus-free nano vitrification agent, and a preparation method and application thereof. The phosphorus-free nano vitrification agent is prepared from the following raw materials in percentage by mass: 3-6% of fluorozirconic acid, 3-7% of zirconium oxychloride, 0.1-0.6% of ammonium fluozirconate, 0.8-2% of tartaric acid, 0.5-1% of sodium nitrate and the balance of water. The phosphorus-free nano vitrification agent provided by the invention can be operated at normal temperature, and is short in treatment time and simple in process; almost no deposit exists, and nozzle blocking is avoided; the waste treatment cost is reduced; and the adhesive force between paint and metal can be obviously improved, and the corrosion resistance time of the metal can be prolonged.

Description

technical field [0001] The present invention relates to the field of metal surface treatment agents, in particular to a phosphorus-free metal surface treatment agent, a preparation method and an application thereof. Background technique [0002] With the increasing importance of environmental protection requirements, the traditional phosphating process containing phosphorus, nickel and sediment treatment has gradually failed to meet the needs of modern environmental protection. The new generation of phosphorus-free environmental protection conversion process can form nano-scale films on the metal surface, with enhanced coating Equipped with adhesion and corrosion resistance, it can process steel, zinc, aluminum and its alloy materials. It is an excellent choice to replace the traditional phosphating process. At present, phosphorus-free conversion coating products have been practically applied in industries such as automobiles and home appliances. Phosphorus-free conversi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C22/34
Inventor 桂成方
Owner HUNAN JINYU ENVIRONMENTAL PROTECTION TECH CO LTD
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