How to carry out metal cleaning and what are the m

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How to clean metal reasonably and what are the methods of metal cleaning

Abstract: when washing metal, do you worry about rust? There are various detergents and cleaning methods for industrial washing, but metals may be damaged if appropriate detergents and cleaning methods are not selected. What are the methods of metal cleaning

methods of cleaning metal

there are various types of dirt attached to the metal, and there are several ways to fall. Let's take a closer look at typical metal cleaning methods

[remove dirt with detergent]

this is a method of using water/quasi water-based detergent to improve oil contamination and falling. In the case of metal cleaning, alkaline or neutral water-based cleaners are usually used. However, due to the use of water, it must be used in the pH range where the metal is not easy to corrode. Please check the appropriate pH of the target metal. Moreover, ultrasonic wave and object oscillation system are usually used together

[melt dirt with organic solvent]

solvent is a liquid used to melt objects (dirt). For metal cleaning, organic solvents such as petroleum and chlorinated hydrocarbons, coal tar, alcohol, ketone, phenol, etc. are mainly used. Methods such as vapor phase degreasing and liquid phase degreasing in liquid form using these vapors are common

[remove dirt with machine]

this is a method of physically removing solid dirt, etc. Or use file or non-woven fabric, polishing and processing machine, use sand blasting or smooth metal surface to wipe off by hand

[decompose dirt through chemical reaction]

when rust has occurred, use acid to decompose the chemical changes of oxides. By putting the aqueous solution into the liquid crystal display of the washing tank and dyeing the object, the oxide film on the metal surface can be removed

cleaning metals with surfactants

surfactants have the effect of mixing water and oil, such as oil, which are not mixed together. By using the emulsification/dispersion function, dirt that is difficult to adhere to metal can be removed. In addition, when it adheres to the metal surface, it becomes a protective film and also has the effect of inhibiting metal rust. Therefore, many detergents using surfactants are used to clean metals

let me give an example. First, add semi aqueous detergent mixed with surfactant to the policy goal of dissolving excess capacity in the washing tank (immersion spray type) this round, and control the concentration to 15% or higher. At this time, dirt can be effectively removed by setting the detergent to a high temperature of about 50 degrees. Next, discharge the liquid and transfer the object to be cleaned to the pre rinsing tank. Let's further drain and move to the flushing tank of two tanks. At this time, by setting the surfactant to a low temperature of about 40 ℃, the effect of dispersing dirt and preventing dirt from redeposition can be proved. After that, we moved to the hot air dryer. The increasing number of sports events around the world will drive the demand for sportswear. It can be rinsed at low temperature and dried quickly

through the above cleaning methods, the high clay polybutene resin can be effectively removed from the aluminum surface. It can also reduce waste treatment and regenerate rinsing water. However, in order to prevent metal corrosion, it is necessary to design measures such as adding corrosion inhibitors to the cleaning solution when some chairs and stools break their legs soon

clean to prevent rust

then, how can I clean the metal to prevent rust? Let me introduce some methods

first, the metal will rust, because "water + oxygen" will adhere to the metal. The higher the temperature, the faster the rusting speed. The following measures can effectively prevent rust

use organic solvents

if there is no water first, it will not rust easily. Washing with organic solvents does not require washing with water

use surfactant

in the case of water-based cleaning, there is also a method, that is, place low-grade surfactant in the final cleaning tank or dry it without discarding the detergent. Surfactants prevent rust by becoming protective films. However, this only applies if there is no problem with the subsequent process

thoroughly drain + dry

when using water-based detergent, please drain and wipe it thoroughly. For plates, rotary drying is recommended. If possible, let's pick it up with antirust oil and turn off the air

place nitrogen in the dryer

air can be eliminated by inserting nitrogen. It does not supply oxygen, so it will not rust

there are various ways to clean metal without breaking. The most commonly selected method is the cleaning method using surfactants. Considering the dirt you want to drop and the type of washing you want to clean, let's choose the best cleaning method

when washing metal, do you worry about rust? There are various detergents and cleaning methods for industrial washing, but metals may be damaged if appropriate detergents and cleaning methods are not selected. Let's see what cleaning methods are available

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