The application of iso-alkanes in volatile stamping oil

November 27, 2023

The application of iso-alkanes in volatile stamping oil

With the development of industry, people have higher and higher requirements for stamping technology. Stamping process is an indispensable technology in the manufacturing industry, and the efficiency and accuracy of stamping technology have been more and more widely used. In the process of stamping processing, the use of appropriate lubricating oil is very necessary. Volatile stamping oil is a very commonly used lubricating oil, the so-called volatile stamping oil, refers to a certain volatile stamping oil, used for a variety of stamping, punching process above the lubricating oil.

The aluminum fin high-speed stamping oil and condensing copper tube processing oil used in China's air conditioning industry have always been the non-cleaning volatile stamping oil produced by foreign companies. Since the 1990s, domestic metal processing fluid professional companies began to develop volatile stamping oil, but the volatile stamping oil developed in China has a large oil smell and poor corrosion resistance. Volatile performance and lubrication performance can not take into account the shortcomings, it is difficult to achieve the performance of imported products. Through the cooperation and research experiments of many enterprises, a new generation of volatile stamping oil based on synthetic oil has been successfully developed. The product has good safety, anti-corrosion, appropriate lubricity and volatility, colorless, tasteless and non-toxic, and successfully replaces the same type of imported high-end products, and has achieved significant economic and environmental benefits.

Volatile stamping oil needs to have the following technical indicators
Security:
The appearance of volatile stamping oil should be clear and transparent, and will not change the surface color of the workpiece; The smell is mild and the pollution to the workshop environment is reduced, which requires the Base Oil to contain less aromatics, olefins and sulfides, which come into contact with the operator's skin and respiratory tract, which can easily lead to respiratory and skin diseases. The flash point of volatile stamping oil is higher to ensure the safety of use, the flash point of aluminum fin stamping oil is greater than 60 ° C, and the flash point of condensed copper tube processing oil is greater than 40 ° C.

Corrosiveness:
The corrosion performance of volatile stamping oil on non-ferrous metals such as aluminum and copper is a key indicator for the study of oil products. By controlling acid value, sulfur content and other indicators to ensure that stamping oil does not corrod aluminum and copper metals, especially to control the water-soluble acid base of stamping oil, the acid value index should be less than 0.5mgKOH/g. Copper corrosion is no greater than grade 1.

Volatility:
In order to meet the requirements of no-cleaning process, control the residual amount of stamping oil, and develop the volatile property and drying property of oil are the key indexes.

Lubricity:
In order to meet the needs of high-speed stamping of aluminum fins, the stamping oil must have appropriate lubricity, on the one hand, it can reduce the friction heat generation of the stamping die, prevent the mold temperature from being too high, resulting in the reduction of the gap between the convex and concave dies, resulting in the sintering of aluminum fins, strain, etc.; On the other hand, it can reduce the wear and adhesion of the stamping die and extend the service life of the stamping die.

Hydrophilicity:
Hydrophilic aluminum foil is widely used in heat exchangers of household air conditioners, requiring oil products to have no effect on the hydrophilic properties of hydrophilic aluminum foil.

Base oil plays a decisive role in the performance of stamping oil, and the viscosity of base oil determines the fluid lubricity of stamping oil. The flash point of the base oil is an important guarantee to ensure the safety of the use of stamping oil. During the processing of aluminum fins, the temperature of the stamping oil is between 50cl= -60Cl =, so the flash point of the stamping oil is required to be greater than 60cl=; The degreasing performance of stamping oil is directly related to the distillation range of base oil. The narrower the distillation range, the better the degreasing performance. The toxicity and odor of stamping oil are related to the content of aromatics and sulfur. In order to meet the low toxicity and mild odor of stamping oil, the mass fraction of aromatics of base oil is required to be less than 1% and the mass fraction of sulfur is less than 0.01%. In addition, the base oil of the condensed copper pipe processing oil must be chlorine free.

According to the above requirements, normal alkane, iso-alkane and iso-olefin base oils were investigated.

Through the comparative analysis of the investigation and test, the volatile stamping oil uses isomeric alkane as the base oil, which is a safe, non-toxic and environmentally friendly product, and can fully meet the volatilibility, purity, cooling and lubricity required by high-speed aluminum fin stamping processing and condensing copper pipe forming, and will not have a negative impact on the subsequent welding and de-fatting processes of aluminum fins and copper pipes. The volatile stamping oil produced by isopalkanes can improve the processing speed and pass rate of aluminum fins, prolong the die life and have significant economic benefits.

Author:

Mr. James

E-mail:

sales@cn-lubricantadditive.com

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+86 13783582233