How long does cutting fluid usually last for rust prevention?

Professionals engaged in mechanical processing all know that cutting fluid has four major functions: lubrication, cooling, cleaning, and anti-rust. These four functions are indispensable for any cutting fluid. Now we mainly discuss the anti-rust function of cutting fluid.

Anti-rust effect

• After cutting, a new surface will be produced on the workpiece surface. The newly generated metal surface is highly active, which makes it very prone to corrosion. Especially in the cutting process using diluent, a small amount of diluent will be adsorbed on the workpiece after it is processed. On the surface of the workpiece, the water in the diluent is a good electrolyte, which makes it easy to form a corrosion galvanic cell on the surface to be processed, causing electrochemical corrosion on the surface of the workpiece;
• In addition, the cut workpieces may be stored for a short period of time, waiting to enter the next processing step. Most of the stored workpieces will be exposed to the air, and the workpieces exposed to the air are prone to atmospheric corrosion;
• Contact corrosion is also a common phenomenon during the storage of workpieces after cutting.

The above reasons prompt that cutting lubricants need to have a certain anti-rust effect to ensure that the workpiece being processed does not corrode before the next process.

Cutting lubricant is not a professional anti-rust agent. The anti-rust time limit of cutting lubricant is short. Long-term anti-rust of the workpiece requires the use of the special anti-rust agent.

How long does cutting fluid usually last for rust prevention?

The general anti-rust time of cutting fluid is about 7 days, which meets the requirements of short-term anti-rust.

If the next process is not carried out for a long time, a certain amount of anti-rust agent needs to be added to the cutting fluid to ensure that the workpiece has a certain corrosion resistance during cutting. Especially in areas with high temperature and humidity, the requirements for the anti-rust properties and anti-rust time of the cutting fluid are stricter to avoid affecting the cutting quality of the workpiece due to high humidity.

Chorus Company supplies a series of rust inhibitors, widely used in the fields of metalworking fluids and lubricants.  Welcome customers to inquire.