Why does the Slide Rail Rust?

As a Drawer Fittings Manufacturer, share with you.

The slide rail is generally made of 304 stainless steel or 201 stainless steel. Stainless steel has the characteristics of corrosion resistance, oxidation resistance, easy processing and high hardness, and good ductility. It is widely used in various industries, but stainless steel will rust over time. , This is not a quality issue, but the use of the environment!

Undermount Installation Concealed Slide

So why does the Undermount Installation Concealed Slide still rust? This is because stainless steel can resist some acid and alkali salt corrosion in dry air, and it can prevent rust from the general humidity of the air; but it is easy to rust in seaside cities where the air contains a lot of salt fog because stainless steel is its surface The formed layer is a very thin, strong and dense stable chromium-rich oxide film (protective film), which prevents the oxygen atoms from infiltrating and continuing to oxidize and obtains the ability to resist rust. Once for some reason, this film is constantly destroyed, oxygen atoms in the air or liquid will continue to infiltrate or iron atoms in the metal will continue to separate out, forming loose iron oxide, and the metal surface will be continuously rusted. There are many forms of damage to this surface film, and the following are common in daily life:

1. The surface of the stainless steel has deposits of dust or other metal particles containing other metal elements. In humid air, the condensate between the deposits and the stainless steel connects the two into a micro battery, which triggers the electrochemical reaction. The protective film is damaged, which is called electrochemical corrosion.

2. Organic matter juice adheres to the surface of stainless steel. In the presence of water and oxygen, it forms organic acids. For a long time, organic acids corrode the metal surface.

3. The surface of stainless steel contains acids, alkalis and salts, which can cause local corrosion.

4. In contaminated air, when condensed water is formed, liquid points of sulfuric acid, nitric acid and acetic acid are formed, causing chemical corrosion.

Reasons for the sliding of the slide rail

With the improvement of China's economic living standards, more and more steel ball slide rails are used on furniture, and the steel ball slide rails may encounter push and pull irregularities when used. To summarize the following:

1. The steel ball of the slide rail is inferior steel ball, it has potholes, it is not full and round, or the material design of the slide rail is wrong.

2. Too many items are stacked too much, squeezing the drawer space, causing the slide rail to be too high to run smoothly.

3. The use time is too long, usually the service life of the slide rail is 50,000 times of opening and closing, the service life is too long, and the steel balls inside are more or less worn, resulting in failure to push and pull smoothly.

4. The slide rail is rusted, and the bead grooves and steel balls inside are easily corroded and rusted in a high humidity environment.

Our company also has Slide for Metal Drawer on sale, welcome to consult.