Effect of heat treatment on the surface quality of stainless steel
The surface of the stainless steel wire is uneven. Full attention to heating or heat treatment of heat treatment. This article focuses on the relationship between the quality of the stainless steel wire and the heat treatment.
I
If the oil is attached to the surface of the room during heating, the thickness of the scale of the oil attached to the oil is different from the thickness of the ladder and the composition of other parts, And the carburetor will occur. The carburetor part of the sub-cheer matrix metal will be severely eroded by acid. If the oil droplets have sprayed when the heavy oil burner is initially burned, it will have a large impact. The operator’s fingerprints also have an impact when they get attached to the room.
Therefore, operators should not directly touch stainless steel parts with their hands and do not leave the parts that are colored with new oil. Caustic soda solution before using hot water and then heat treatment.
II
If there are debris, organic matter or ashes on the surface of the room, heating will of course have an impact on the scale.
III
There is a difference in the scale produced by the stainless steel surface where the gas or oil flame is directly in contact with and where it is not in contact. Therefore, the treatment part should not directly contact the flame port during heating.
Iv
If there is a residual oxide scale in the local part of the treatment part before the heat treatment, and that there are residual oxide scales and no oxide scale after heating, differences in differences ‘Thickness and composition of the oxide scale will occur, causing an uneven surface after the sailor. Not only should we pay attention to the final heat treatment, but also pay particular attention to intermediate heat treatment and stripping.
V
The effect of different surface finishes. For example, the oxide scale is different in places where local defects have been cleaned and where there is no cleaning, so the surface of the room is uneven after stripping.
Vi
The atmosphere in the furnace varies in different parts of the oven, and the formation of the oxide scale will also change, which is also the reason for inequality after stripping. Therefore, during heating, the atmosphere in each part of the furnace must be the same. Therefore, the circulation of the atmosphere must also be taken into account.
Daguang focuses on providing solutions such as precision CNC machining services (3-axis, 4-axis, 5-axis machining), CNC milling, 3D printing and rapid prototyping services.
