What is the difference between stainless steel pickling paste and rust removal paste?

Stainless steel cleaning paste.

It is used to remove rust, oxide scale, yellow, blue and black welding spots and other dirt on the surface of various types of stainless steel parts, plates and equipment surfaces, and the metal surface becomes silvery-white after cleaning, and at the same time passivates the surface to improve the corrosion resistance of stainless steel.

Rust remover is used to treat the surface rust of finished metal products. Moreover, the coating method replaces the acid tank degreasing, rust removal and other treatment processes. Simplified operation and equipment, paste is applied to the rust. Coating 1 5mm, stand for 10 20 minutes, and carve off the paste to achieve the purpose of rust removal.

There are two types of rust marks on stainless steel, one is floating rust, which is produced by impurities that stick to the surface, and the other is rust of the real material.

In addition, there is a kind of stainless iron in the stainless steel material, which is a very low-end metal product, you can first use a magnet to check what kind of substance it is.

As for what you said, these two trace removal products are not very different and can be used. However, it is necessary to carry out a simple polishing treatment on the residual material on the surface after cleaning to avoid the occurrence of subsequent corrosion.

Stainless steel is often stained or contaminated. Sediment stuck to the surface of the equipment, sediment from the product, dust and other substances must be removed. The cleanup procedure during use generally includes five or several of the following:

Wash with clean water and wash well;

high-pressure water purification flushing;

ejection of low- and-or high-pressure steam;

Rinse with solvent or alkaline water to remove oil, grease and other organic substances. If cleaning with alkaline or alkaline washing, the final cleaning must be carried out with clean water.

Rinsing with acid must be done with clean water. If hydrochloric acid is used, special care must be taken because residual chloride ions can accelerate pitting, crevice corrosion, and stress corrosion fracture.

Rust remover is also an acidic chemical agent.

The principle is the same as that of pickling paste.

Feel free to use it. It's just a simple chemistry that is used. The rusty ingredients were scrubbed away with an acidic substance.

Summary. Do not use hydrochloric acid, chloride ions in hydrochloric acid are the strongest corrosion of stainless steel, generally stainless steel to do intergranular corrosion test is to use hydrochloric acid to heat and cook stainless steel for 48 hours, if the intergranular corrosion of unqualified stainless steel, you can see the needle-shaped holes.

Pickling can be cleaned with a mixture of 5 hydrofluoric acid and 15 nitric acid water. This is on the RCC-M standard for nuclear power manufacturing in France.

What acid is good for stainless steel pickling?

Thousands of bonds can not use hydrochloric acid, chloride ions in hydrochloric acid corrosion of stainless steel is the strongest, the general stainless steel intergranular corrosion test is to use hydrochloric acid heating after boiling stainless steel for 48 hours, if the intergranular corrosion is unqualified sliding Qiqiao stainless steel, you can see the needle-shaped holes. Side-closed pickling can be cleaned with a mixed acid solution of 5 hydrofluoric acid and 15 nitric acid water. This is on the RCC-M standard for nuclear power manufacturing in France.

I hope mine can help you.

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Stainless steel pipe pickling passivation, rinsing, packaging and packing process.

Stainless steel is relatively acid-resistant, can be pickled with nitrate, does not need to consider corrosion, if hydrochloric acid is used, corrosion inhibitors need to be added, the concentration of pickling is not very high, and the acid is useless after washing, I don't know what your stainless steel equipment needs to be pickled If it is scale, because the component of scale is a large amount of calcium carbonate, so try not to wash with sulfuric acid It is easy to form calcium sulfate, which is more difficult to treat.

Put concentrated sulfuric acid directly, and then soak it in water to wash off the concentrated sulfuric acid. After the surface oxide layer is removed from the concentrated sulfuric acid, the iron can be passivated, so that the reaction is not carried out, but concentrated sulfuric acid must be used, because dilute sulfuric acid has no passivation function, and there should be more water when using water, otherwise if a certain concentration of dilute sulfuric acid is formed, the passivation layer can be dissolved and then corroded by the steel.

Yunqing Chemical provides you with three methods for stainless steel pickling:

1. Pickling liquid pickling, suitable for pickling of small workpieces and special-shaped parts 2, pickling paste pickling, suitable for pickling of large workpieces and vertical planes 3, pickling additives, suitable for pickling with nitric pickling, used for the production of stainless steel manufacturers.

Stainless steel is made of iron-chromium alloy mixed with some other trace elements. Due to its good metal properties and its resistance to rust than other metals, the utensils made are beautiful and durable. Therefore, more and more are used to make kitchen utensils, and gradually enter the majority of households.

However, if the user lacks the knowledge of the relevant aspects and uses it improperly, the trace metal elements in stainless steel will also slowly accumulate in the human body, and when it reaches a certain limit, it will endanger human health.

Stainless steel, although it is difficult to rust, can also stain. Fortunately, there are many ways to clean stainless steel utensils, and they are quick and easy. A paste made with liquid soap and baking soda may be the best choice.

For more stubborn stains, a direct scrub with vinegar may be effective. Stainless steel will soon be as smooth as new!

Question: I use, the detergent used to clean the tiles drops a little sticky to the stainless steel, and the washing basin inside the washing basin changes color, what can be used to clean it.

Hydrogen peroxide can be washed, but be safe!

Question: Toilet cleaner and hydrogen peroxide cannot be used at the same time.

It is better to use alkaline ha.

It can be called stainless steel pickling agent, stainless steel pickling passivation paste, colorless transparent paste, has a good cleaning and passivation effect on stainless steel, 1 is mainly used to clean the oxide scale of the stainless steel surface in the binding and manufacturing process, and the welding spots generated after welding, and the surface is silver-gray (stainless steel natural color) after cleaning, and the surface is passivated at the same time, which improves the corrosion resistance of stainless steel. Passivation is a two-component new high-tech research and development material, which is a two-component new high-tech research and development material with the addition of high-efficiency corrosion inhibitor and fog inhibitor to prevent metal overcorrosion and hydrogen embrittlement, and inhibit the generation of acid mist.

It is widely used in aerospace, mobile communications, glasses, clocks and watches, auto parts, precision hardware, medical equipment, food machinery, fasteners and other industries.

For the comprehensive pickling and passivation of stainless steel, all kinds of oil, rust, oxide scale, welding spots and other dirt are removed, and the surface becomes uniform silvery-white after treatment.

1. Apply a soft cloth or wire brush to the surface of stainless steel, and rinse with water after the reaction is thorough.

2. The reaction time at room temperature is about 5-20 minutes, which is lower than the normal temperature or when dealing with thick oxide scale and hot pressing head, the reaction time can be appropriately extended according to the specific situation.

3. Operate outdoors or indoors with good ventilation, avoid direct contact, and rinse with a large amount of water if you touch it by mistake.

Stainless steel pickling paste (liquid: stainless steel pickling passivation liquid) is a chemical preparation to remove yellow, blue, black weld spots and oxide scale produced after stainless steel welding and high-temperature processing, suitable for ferrite, austenite and other stainless steels, comprehensive pickling and passivation of stainless steel, and improve its corrosion resistance, so that the surface of stainless steel is as bright as new, the effect is excellent, and the surface of the workpiece can be removed from oil, rust, weld, oxide layer, free iron and other dirt on the surface of the workpiece while passivating, and the surface becomes uniform silver-white after treatment.

It is suitable for pickling and passivation treatment of series stainless steel parts, plates and equipment.