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Method for microwave rust removal and prevention

A microwave and rust inhibitor technology, applied in the field of rust and metal rust removal, can solve the problems of shortening the time of rust removal and rust-proof film formation, and achieve the effect of easy automatic control, improvement of rust removal efficiency and fast speed.

Active Publication Date: 2013-04-24
无锡纳润特科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Combining the microwave derusting method provided by the present invention and the special derusting and antirusting agent, it overcomes the long derusting time of the derusting and antirusting agent in the normal state, the long derusting time and incomplete derusting when workpieces are stacked and derusted. Insufficient technology, etc., ensure the complete rust removal of the device, uniform protective film, and shorten the time for rust removal and anti-rust film formation

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0035] Stack lightly rusted steel wires in parallel, and send them into the working tank filled with rust remover and antirust agent through the logistics conveyor. There are microwave generators on both sides of the working tank, and three microwave generators are placed on each side, the model is 2450±50MH2. Start the microwave generator to irradiate the steel wire with microwaves for 100 seconds, and then wash it with a neutralizing solution. The temperature of the neutralizing solution is 60°C and the pressure is 3Mpa.

[0036] The preparation method of described rust remover and antirust agent is:

[0037] (1) Put boric acid, raw material A, phosphoric acid, and trisodium phosphate into the reaction kettle, and carry out the reaction under vacuum and constant stirring. The reaction temperature is 50°C, and the reaction time is 120 minutes;

[0038] (2) Turn off the vacuum, cool the temperature in the reactor to below 50°C, and then add it slowly into the reactor. Tartari...

Embodiment 2

[0042] Stack lightly rusted steel wires in parallel, and send them into the working tank filled with rust remover and antirust agent through the logistics conveyor. There are microwave generators on both sides of the working tank, and three microwave generators are placed on each side, the model is 2450±50MH2. Start the microwave generator to irradiate the steel wire with microwave for 160 seconds, and then wash it with a neutralizing solution. The temperature of the neutralizing solution is 80°C and the pressure is 4 Mpa.

[0043] The preparation method of described rust remover and antirust agent is:

[0044] (1) Put boric acid, raw material A, phosphoric acid, and trisodium phosphate into the reaction kettle, and carry out the reaction under vacuum and constant stirring. The reaction temperature is 60°C, and the reaction time is 100 minutes;

[0045] (2) Turn off the vacuum, cool the temperature in the reactor to below 50°C, and then add it slowly into the reactor. Tartaric ...

Embodiment 3

[0049] Stack the steel wires that are heavily rusted and have formed an oxide layer on the surface in parallel, and send them into the working tank filled with rust and rust inhibitors through the logistics conveyor. There are microwave generators on both sides of the working tank, and three microwave generators are placed on each side. The model is 2450±50MH2. Start the microwave generator to irradiate the steel wire with microwaves for 200 seconds, and then wash it with a neutralizing solution. The temperature of the neutralizing solution is 60°C and the pressure is 3 Mpa.

[0050] The preparation method of described rust remover and antirust agent is:

[0051] (1) Put boric acid, raw material A, phosphoric acid, and trisodium phosphate into the reaction kettle, and carry out the reaction under vacuum and constant stirring. The reaction temperature is 70°C, and the reaction time is 80 minutes;

[0052] (2) Turn off the vacuum, cool the temperature in the reactor to below 50...

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Abstract

The invention relates to a method for microwave rust removal and prevention. According to the method, a workpiece to be processed is put in a dust removing and preventing agent to perform dust removal or dust prevention treatment under microwave radiation, and a layer of protecting film is formed on the surface of the workpiece. The method for microwave dust removal is combined with the special dust removing and preventing agent, so that the technical defects that the dust removal time is too long by using the dust removing and preventing agent in the normal state, the dust removal time is long during dust removal of workpieces which are stacked together, the dust removal is incomplete and the like are overcome, the dust removal of the workpieces is complete, the protecting film is uniform, and the dust removal time and the protecting film forming time are shortened.

Description

technical field [0001] The invention relates to the technical field of metal rust removal and rust prevention, in particular to a rust removal and rust prevention method using microwave treatment and a water-based rust removal and antirust agent. Background technique [0002] Rust remover and antirust agent are widely used products in the metal processing industry, and the market usage is very large. In recent years, as countries around the world pay more and more attention to environmental protection, the widely used rust and rust inhibitors of hydrochloric acid and sulfuric acid have become the focus of discussion and attention due to their shortcomings such as poor biodegradability and easy pollution of the environment. It takes a long time for this kind of acidic rust removal and antirust agent to remove rust at normal temperature, and the consumption of acid is also very large; and when the stacked metal workpieces are pickled and rusted in batches, the rust removal eff...

Claims

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Application Information

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IPC IPC(8): C23C22/07C23C22/47C23G1/02
Inventor 宋小林
Owner 无锡纳润特科技有限公司
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