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Metal corrosion-preventing method

A metal anti-corrosion, metal material technology, applied in the direction of coating, the device for coating liquid on the surface, etc., can solve the problems of high processing cost, failure to meet anti-corrosion, high technical requirements, reduce toxic and harmful gas and liquid emissions, The effect of long corrosion resistance and short process flow

Active Publication Date: 2012-09-26
临沂高新置业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Various anti-corrosion processes in the prior art have the disadvantages of complex process, high technical requirements, and high processing costs
[0003] Especially the raw material storage of metal materials and the anticorrosion of metal processing workpieces are generally carried out by spraying anticorrosion oil technology. When raw materials are stacked outdoors, due to the outdoor sun and rain, the anticorrosion oil on the surface evaporates quickly in a short time, reaching Without the purpose of anti-corrosion, the volatile gas of anti-corrosion oil will pollute the environment
When the workpiece is stored for a long time, the anti-corrosion oil will also volatilize quickly, and a special smell will be formed in the stacking warehouse, which will affect the health of the workers
After the workpiece or accessories of the export equipment are packed, they are shipped abroad by sea. During the sea transportation, the salt spray will penetrate into the packing box, causing corrosion of the workpiece and causing losses to the country and enterprises.

Method used

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Examples

Experimental program
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Effect test

example 1

[0026] Example 1, its processing steps are as follows:

[0027] a. Put paraffin: stearic acid: liquid paraffin=80: 15: 5 according to the weight ratio to form a mixed wax, add it into a constant temperature container, stir and heat it to 80°C to form a mixed wax liquid;

[0028] b. Put 20 rebars with a diameter of 14 mm and a length of 6 meters into the constant temperature container, and the constant temperature container continues to heat up the rebar to reach 80 ° C, that is, the metal material and the mixed wax liquid are at the same temperature;

[0029] c. Fish out the rebar, hang the rebar above the constant temperature container, drop the wax liquid flowing on the surface of the rebar, and control the temperature drop of the rebar to be less than 5°C;

[0030] d, then quickly drop the rebar into a container with cold water at room temperature;

[0031] e. Take out the mixed wax floating on the surface of the container equipped with cold water at room temperature, dehy...

example 2

[0035] Example 2, its processing steps are as follows:

[0036] a. Put paraffin: stearic acid: liquid paraffin=90: 8: 2 according to the weight ratio to form a mixed wax, add it into a constant temperature container, stir and heat it to 70°C to form a mixed wax liquid;

[0037] b. Put 10 gears with a diameter of 200 mm (the gears are made of 45# steel, and the teeth are subjected to high-frequency quenching treatment) into a constant temperature container, and the constant temperature container continues to heat up to make the gears reach 70 ° C, that is, metal materials and mixed wax Liquid isothermal;

[0038] c. Take out the gear, hang the gear above the constant temperature container, drop the wax liquid flowing on the surface of the gear, and control the temperature drop of the gear to less than 5°C;

[0039]d. Then quickly put the gear into the container with cold water at room temperature;

[0040] e. Take out the mixed wax floating on the surface of the container equ...

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Abstract

The invention discloses a metal corrosion-preventing method, and particularly relates to a corrosion-preventing method which forms a wax film on the metal surface by putting metal into melted wax liquid and then quickly feeding the metal into the water, belonging to the technical field of metal corrosion prevention. The defects of complicated process, high technique requirement and high processing cost of the various corrosion-preventing process in the prior art can be overcome. According to the process principle, the metal corrosion-preventing method comprises the following steps of: mixing paraffins, stearic acid and liquid paraffin to form mixed wax; adding the mixed wax into a constant-temperature heating container, and heating and dissolving the mixed wax to be mixed wax liquid; soaking a metal material into the mixed wax liquid, and continuously heating to ensure that the metal material is at the temperature of the mixed wax liquid, that is, the metal material and the mixed wax liquid are at the same temperature; taking out the metal material; removing the wax liquid on the surface of the metal material in a dipping mode; and feeding the metal material into cold water at the room temperature to quickly cool the metal surface, thus forming the wax film with the thickness between 0.02MM and 0.05MM on the metal surface when the metal is cooled so as to cover the surface of the whole metal material; therefore a corrosion-preventing aim can be fulfilled by covering the wax film on the metal surface; and in addition, the practicability is high.

Description

technical field [0001] The invention relates to a metal anti-corrosion method, in particular to an anti-corrosion method in which metal is put into melted wax liquid and then quickly put into water to form a wax film on the metal surface, belonging to the technical field of metal anti-corrosion. Background technique [0002] There are many known metal anti-corrosion methods, such as spraying anti-corrosion oil anti-corrosion, spraying paint anti-corrosion, surface bluing (black), electroplating anti-corrosion and other processes. Various anti-corrosion processes in the prior art have the disadvantages of complex process, high technical requirements, and high processing costs. [0003] Especially the raw material storage of metal materials and the anticorrosion of metal processing workpieces are generally carried out by spraying anticorrosion oil technology. When raw materials are stacked outdoors, due to the outdoor sun and rain, the anticorrosion oil on the surface evaporat...

Claims

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Application Information

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IPC IPC(8): B05D7/14B05D7/24
Inventor 吴超
Owner 临沂高新置业有限公司
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