There are many kinds of rust removers for steel bars, and you will know which effect is good after r

It's very simple, needless to say so much, there are two kinds, one is neutral, strictly speaking, weakly acidic, the other is strong acidic, the strong acidic rust remover will corrode the steel bar, and the rust will return to rust immediately after rust removal, reducing the grip between the steel bar and the concrete, the neutral rust remover, after rust removal, will form a layer of anti-rust phosphating film on the surface of the steel bar, and the rust prevention will be about half a year under natural conditions, and it can significantly improve the grip and wrapping force between the concrete.

ENIENT EC0132 Neutral Rust Remover is a new type of fast and gentle rust remover known as the Rust Eraser. Functionally, it can react with a variety of metal oxides, including iron, steel, aluminum, zinc, tin, etc.; In terms of operation, it can be soaked, sprayed, wiped and other methods of operation; In terms of the degree of loss, it can avoid the loss of the metal layer itself, and it can also not harm the surrounding plastic rubber and other parts; In terms of speed, it only takes 5 minutes to complete the rust removal reaction, so that the rust disappears.

Use step one.

The solution is fully in contact with the corroded part, and the uniform can be soaked, coated, sprayed, etc.

Use Step 2.

The reaction can be started when the solution is in contact with the rust, and the dissolution and discoloration of the rust part can be clearly seen in 2 minutes, and the reaction can be completed in 5 minutes to observe the rust removal. If the corrosion layer is too thick, the process can be repeated.

Use Step 3.

The parts that have been rusted can be rinsed with clean water or wiped clean. The rust remover has a short-term anti-rust effect after use, and if long-term anti-rust is required, a long-term anti-rust oil can also be used. In severe environments, the same series of long-term anti-rust oil can be used, which can be soaked in seawater to prevent rust, can resist water washing, and has an effect of up to 20 years.

Use Step 4.

After soaking, the solution can be collected and used repeatedly.

Hello, there are many common steel rust removers on the market, strong acids and weak acids, but the composition is different, so the rust removal effect is not the same, strong acid steel rust removers have a fast rust removal effect, ** cheap, but pollute the environment, corrode the steel bar itself, and affect the strength of the steel bar. The weak acid steel rust remover only has an effect on the rust on the surface of the steel bar, and the composition is also composed of green environmental protection components. There is no hazard and does not affect the health of the operator.

Hope, thank you

The EC1032 of AB Chemical is super easy to use, it is a magic eraser type rust remover, which only needs to be dipped in a cotton swab to wipe the rusted part to remove the rust uniformly, and does not harm metal, plastic, and rubber.

Rebar rust remover.

After a long shutdown of a construction site or a large steel structure workshop due to various reasons, the steel bar or steel structure is easy to rust. When the work starts again, the corrosion of the steel bars or steel structures is difficult to deal with, because one part is inside the concrete and the other is outside, and it cannot be completely removed. If the concrete is poured directly without rust removal, it will affect the grip of the concrete on the steel bar and clean up the rust.

At present, the commonly used methods for removing rust from steel bars are: 1. Artificial wire brush grinding. 2. Sandblasting and rust removal. 3. High-pressure water gun to remove rust. 4. Rust removal. 5. Electric shock to remove rust. 6. Chemical rust removal.

There were few rust removal before, but in recent years, the requirements have been stricter before rust removal began, but it is common to polish and remove rust for artificial wire brushes. With the rapid development of the economy and the pace of life, especially after the labor wage has become high, manual grinding has become less and less due to factors such as high cost, low efficiency and poor manual management. Chemical rust removal is becoming more and more popular in the market because of its high efficiency, good effect and low cost!

However, the steel bar rust removal sold on the market is mixed, especially the manufacturers in Shandong and Guangdong openly add hydrochloric acid, which makes the entire industry cover a great potential danger. In order to enable the construction site to use real steel rust remover and be responsible for the construction quality, the relevant information is listed below for reference when purchasing.

A real steel bar rust remover should meet the following requirements:

1. It does not contain strong acids, especially hydrochloric acid and sulfuric acid, which are prohibited in building codes.

2. The steel bar rust remover does not corrode the steel bar and does not change the mechanical properties of the steel bar.

3. After rust removal, the anti-rust effect is good and good, and the water can not cause powdery dust.

4. After rust removal, it can effectively improve the gripping force of reinforced concrete.

5. The steel rust remover cannot harm the performance of concrete.

At present, most of the steel bar rust removers sold on the market add hydrochloric acid in order to pursue the rust removal effect, but hydrochloric acid is strictly prohibited from being used in building codes. How to identify whether the steel rust remover contains hydrochloric acid, the first is to take samples to the local quality supervision station or chemical research institute to test the hydrochloric acid content (the company can provide technical support), and secondly, to identify by the senses, the hydrochloric acid content is high and the pungent smell and the agent is yellow; Low content or use high-purity hydrochloric acid in the sun for a few minutes, the color of the agent quickly turns yellow. At present, the steel bar rust remover sold by bad manufacturers in Shandong, Hubei, Hunan and Jiangxi contains hydrochloric acid, which seriously damages the interests of the steel bar rust remover industry, and it is recommended that users consider it carefully.

It is to see the rust removal effect, the real steel bar rust remover after the rust removal of the steel bar looks like new at first glance, the important rust removal will not cause white ash in the outdoor rain, and the rust prevention in the state of spontaneous combustion is at least 3 months.

The steel bar rust remover produced by the company does not contain hydrochloric acid, is safe, has good rust removal effect, good anti-rust effect, does not corrode steel bars, does not corrode concrete, does not affect the grip and wrapping force of reinforced concrete, and has a real test report of the department.

There are about two kinds of steel rust removers, one is that the main components are hydrochloric acid, oxalic acid and other strong acid and alkali rust removers, the advantage of this kind of rust removers is that the rust removal effect is beautiful, cheap, but there is a very fatal disadvantage that it is corrosive, which can cause the quality of steel bars to decline, hydrogen embrittlement, and rust return is particularly fast, and even sometimes the rust removal has not completed the steel bar has begun to rust. Therefore, it is not recommended to use this type of rust remover.

There is also a kind of rust remover is non-corrosive, the main component of phytic acid and other organic acid rust remover, this kind of rust remover not only has a good rust removal effect, but also has no corrosiveness, will not affect the quality of steel bars, but also can effectively improve the grip of reinforced concrete. Not only that, this kind of steel bar also has an anti-rust function, after rust removal, the steel bar is in an outdoor natural state, 1-2 months will not return to rust, and the quality is more guaranteed.

Hope, thank you

There are indeed many kinds of steel rust removers, for example, there are hydrochloric acid, oxalic acid and other steel bar rust removers. There are also steel rust removers such as organic acids.

However, hydrochloric acid, oxalic acid and other steel rust removers are corrosive, easy to corrode steel bars, and the quality of steel bars declines.

Because the main component of organic acid steel bar rust remover is phytic acid, it is not corrosive, so the effect of organic acid steel bar rust remover is better.

Hope it helps, thank you

At present, there are about two types of steel bar rust removers on the market: one is the cheaper steel bar rust remover, the main component of this kind of rust remover is oxalic acid, hydrochloric acid and other strong acids and alkalis, because oxalic acid and hydrochloric acid are cheap, so this kind of rust remover is cheap, but this kind of rust remover is very corrosive, which can affect the quality of steel bars, and the rust is also very fast.

The other type is the most expensive steel rust remover, the main component of this kind of steel bar rust remover is organic acids such as phytic acid, this acid is more expensive, so this kind of rust remover is also more expensive, but this kind of rust remover is not corrosive, and can effectively improve the grip of reinforced concrete.

The steel rust remover of regular manufacturers does not contain a drop of hydrochloric acid, does not corrode steel bars, and is mainly composed of a variety of accelerators, stripping agents, inhibitors, organic acids (phytic acid and edible phosphoric acid), surfactants, etc. Through the chemical reactions such as infiltration, absorption, transformation and regeneration of the rust layer on the surface of the steel bar, the rust is transformed into dense zinc iron phosphate composite salt, which is finally solidified into a waterproof and rust-proof neutral high corrosion resistance chemical conversion film (gray-brown), which is firmly solidified on the surface of the steel bar, which can significantly improve the gripping force of reinforced concrete and the adhesion of concrete, and effectively reduce and slow down the rust of steel bars in concrete.

The products on the market are mixed, there are many types, mainly divided into three kinds, strong acidic, weak acidic, neutral, strong acidic rust remover to hydrochloric acid component, this rust remover has a strong corrosiveness to steel bars, will seriously reduce the grip between steel bars and concrete, and rust will soon return to rust after rust, is also harmful to the human body, weak acid steel bar rust remover does not contain a drop of hydrochloric acid, does not corrode steel bars, mainly composed of a variety of accelerators, stripping agents, inhibitors, organic acids (phytic acid and edible phosphoric acid), Surfactants and other compounds. Through the chemical reactions such as infiltration, absorption, transformation and regeneration of the rust layer on the surface of the steel bar, the rust is transformed into dense zinc iron phosphate composite salt, which is finally solidified into a waterproof and rust-proof neutral high corrosion resistance chemical conversion film (gray-brown), which is firmly solidified on the surface of the steel bar, which can significantly improve the gripping force of reinforced concrete and the adhesion of concrete, and effectively reduce and slow down the rust of steel bars in concrete.

Although there are no relevant industry standards and national standards for steel rust removers, there is a standard that is not standard, that is, it must not contain hydrochloric acid! There are two simple ways to identify whether it contains hydrochloric acid: 1. It has a pungent smell unique to hydrochloric acid, and it turns yellow quickly when placed in the sun.

2. After the rust is removed, the rust is very fast, and the rust is even more very.

However, the rust of steel bars is a headache, the world's annual construction sites due to rust and damage of steel products accounted for one-tenth of the year's steel production, in China, the annual rust of steel bars amounted to nearly 100 million tons. Therefore, how to protect the steel bar from corrosion is of great significance.

Is steel rust removal a technical job? In this issue, teach you how to save the most cost of rust removal, and what are the advantages of steel bar rust removal?

At present, there are many kinds of treatment methods and countermeasures in the market, and there are generally the following methods for steel rust removal at construction sites:

1. Manual rust removal.

Manual rust removal is the most common method of steel rust removal, using tools such as shovels, wire brushes, scrapers, etc. The advantage of this kind of steel rust removal method is to save costs, but there are many disadvantages, such as large labor, low efficiency, and incomplete rust removal, which is only suitable for steel with a small rust removal area and a light degree of rust.

Second, the machine derusting.

Machine rust removal generally uses steel bar derusting machine, sandblasting equipment and high-pressure waterjet equipment to remove rust.

Three kinds. Steel bar derusting machine is a more commonly used mechanical derusting method, which is simple to operate, relatively stable, has high derusting efficiency, and will not pollute the environment. However, the steel bar descaling machine is only suitable for rebar raw material derusting.

Sandblasting and rust removal can effectively remove impurities on the metal surface, such as oxide scale, old rust, etc., and the rust removal effect is good.

High-pressure waterjet equipment rust removal is a high-pressure water gun that can remove soft concrete and slurry, exposing the joint surface. The part of the construction joint is smeared with cement slurry on the surface to increase the adhesion of the old and new concrete. The method is characterized by high production efficiency, low cost and less environmental pollution.

Chemical rust removers.

At present, the most environmentally friendly rust remover is a high-efficiency rust remover prepared from a variety of organic acids (vegetable acid, citric acid and edible phosphoric acid), complexing agents, permeation agents, corrosion inhibitors, surfactants, water and thickeners.

The main characteristics include high safety performance, no phosphorus, no volatile, no odor, non-toxic, non-flammable, high efficiency, thorough rust removal, no damage to the mother, water-free rinsing after rust removal is completed, no impact on post-treatment, and it is also a weakly acidic medium, which will not cause acidification reaction.

One. Manual rust removal :

The common method of manual rust removal is generally to use a wire brush, sand disc, sack cloth, etc. to gently wipe or pull the steel bar back and forth on the sand pile to remove rust.

Two. Mechanical derusting :

Rust remover.

For wire rod steel bars with thinner diameters, rust is automatically removed through cold drawing and straightening processes; The coarse steel bar is rusted by a disc wire brush derusting machine.

There are two kinds of steel bar derusting machine: fixed type and mobile type, which are generally made by the steel bar processing unit, and are driven by power to rotate the disc wire brush at high speed to clean the rust on the steel bar. The stationary steel bar descaling machine is generally installed with a disc wire brush, and two descaling machines can also be combined to improve efficiency.

The sandblasting method is mainly used to remove rust by air compressor, sand storage tank, sandblasting pipe, sprinkler head and other equipment, and uses the strong air flow generated by the air compressor to form a high-pressure sand flow to remove rust, which is suitable for a large number of rust removal work and has a good rust removal effect.

Three. Chemical Rust Removal:

Steel bar rust remover is a kind of A and B component concrete steel bar rust removal and rust prevention material, this product is made of a variety of components, it is safer and more effective than the previous steel rust remover, and can remove serious rust in a short time. It can restore the natural color of the metal, no damage to the base metal, can wash the rust and other substances on the surface of the steel bar, can be automatically dissolved, and can also act in the fine gaps. No heating is required, and the best results are achieved at room temperature.

Non-combustible and non-explosive. The treated metal surface will not affect welding, plating, painting, and does not affect the grip and wrapping force of the steel bar.

Do not splash water if it is not dry for 24 hours after spraying the steel bar, otherwise there will be white ash, and it is forbidden to carry out rust removal construction on rainy days.

Before spraying steel bar rust remover, you can rinse it with water, and try to avoid the high temperature period at noon in summer construction, and catch up with the high temperature at noon in winter construction.

When spraying heavily corroded steel bars, be sure to spray a sufficient amount of rust remover, spray less will cause white ash, if white ash needs to be brushed again.