Our factory's colloid mill and many other equipments are all made of stainless steel. Stainless steel is the only kind of alloy steel, and has the steel of water, air, acid and other corrosive medium. Stainless steel is generally divided into weak corrosion resistant medium of traditional stainless steel and acid, alkali and other chemical medium of acid resistant steel. Because of the difference of chemical composition between the traditional stainless steel and acid resistant steel, the traditional stainless steel can not be very good acid, alkali and other chemical substances, acid resistance, water molecules and other weak corrosive medium.
With the increase of content, the corrosion resistance of stainless steel decreases with the increase of C content. Therefore, the content of C in most stainless steel is lower, and the carbon content of some steel is even lower than that of stainless steel. Another major chemical in stainless steel is chromium, which is resistant to corrosion when the content of chromium reaches a certain level. Stainless steel also contains nickel, antimony, manganese, nitrogen and other elements.
Stainless steel is generally divided into ferritic stainless steel, martensitic stainless steel and austenitic stainless steel. Most of our colloid mills are made of martensitic stainless steel.
Martensitic stainless steel with high strength and hardness, suitable for grinding the material grinding material, after special treatment, the hardness and strength has been further improved, I plant the production of general colloidal mill head can be used for more than 2 years.
As the core component of the colloid mill, the service life of the colloid grinding head is the key to the quality of the whole machine. Therefore, the high quality stainless steel material is the guarantee of the normal operation of the machine. I plant machines are made of stainless steel of the highest quality, life expectancy ranks first in the country. I plant the colloidal mill head can be replaced, 4-5 normal service life of up to one machine.