The principle of chemical polishing of spring steel

Spring steel has crystal structure and properties. In the spring steel crystal, every iron atom is
The role of adjacent iron atoms (may also be carbon atoms or atoms of other elements). For non-surface

If the crystal is uniform, each atom receives the same force from the neighboring atoms, and their

The energy state is also the same, iron atom is the atom in this state, it is at the lowest energy

That is the most stable state. The iron atom on the surface of spring steel, due to its position and

The forces surrounding the atoms are different, and they are in different higher energy states. As indicated by 1 in the figure

The iron atom obviously receives the least force from the surrounding atoms and is in the most activated state. When the spring steel is immersed

When it can chemically react with the polishing solution, the first chemical reaction with it will be this type

Iron atom. Because the iron atoms, which are always at the most prominent part, first undergo a chemical reaction with the polishing solution to dissolve

Dissolves and enters the solution, so that the most prominent part of the spring steel surface dissolves and disappears and becomes smoother than before.

So as to polish the surface of the spring steel.

The advantages of chemical polishing are as follows.

① Strong adaptability. It is used to process parts with complex shapes, so that the inner and outer surfaces of stainless steel can obtain uniform light.


②Simple operation and high production efficiency.

③The equipment used is simple and cheap.

Disadvantages of chemical polishing: The surface quality of chemical polishing is slightly worse than that of electrochemical polishing.