Development of water-soluble drawing oil

The interaction between die and product and the plastic deformation of drawing parts will produce a lot of friction heat and deformation heat. If the heat is not radiated out of the deformation zone in time, the viscosity of the lubricant will decrease and the lubricating film will become thinner, which will lead to direct contact between the mold and the product, resulting in scratches on the surface of the product, and in serious cases, the product will be torn and scrapped. Therefore, the lubricant for deep drawing must have good lubricity and heat dissipation. According to the friction characteristics of stainless steel sheet during deep drawing, the lubricant used has the following requirements: 1, excellent lubricity, deep drawing wear resistance and excellent viscosity-temperature performance; 2, the sheet and the mold can be cooled; 3, easy to apply and easy to clean.

Traditional wire drawing oil mainly includes mineral oil, volatile oil, boride soap-based dry film and soap-based compounds. With the improvement of tensile requirements of stainless steel, the shortcomings of traditional lubricating oil are gradually exposed. For example, mineral oil is difficult to mix, contains harmful flammable components, and is difficult to clean and directly weld; The volatile oil is flammable and toxic, which has little protective effect on tools and increases the VOC content in the workshop. Boride soap-based dry film will produce deposits on the die, and borax particles at the stamping place will become soft and sticky in wet environment; On the other hand, the disadvantage of soap-based compounds is that they are easy to adhere to stamping parts and will corrode soft metals and foams during cleaning.

Because water-based lubricants have many advantages that dry film lubricants do not have, since the early 1970s, countries have been studying water-based lubricants for deep utilization, and only the US Patent Office, the Japanese Patent Office and the European Patent Office have granted nearly 100 patents on water-based lubricants. IRMCO, founded in 194 1 year, invented an oil-free stamping lubricant with high efficiency and environmental protection, which can completely replace the traditional lubrication technology. It is a high polymer and molding lubricant, which is not only non-toxic, chemically stable, water-soluble and easy to clean, but also has unique heat seeking, high adhesion and high cleaning performance. It is mainly used for stamping and stretching, punching, punching, bending and other processes in the forming process of metal workpieces, and can complete the most difficult deep-drawing stamping and stretching. Compared with the traditional stainless steel wire drawing oil, it has great advantages.