Removal method of titanium screw reaction layer

Titanium screws are very common in our lives. Without any surface treatment, the color of the entire screw is silver gray. Sometimes there are many brightly colored titanium screws on high-end bicycles and automobiles. These are all After a certain degree of treatment, the surface will be bright and colorful. Here is how to remove the reaction layer on the surface of the titanium screw.

The density of the titanium screw is small, the inertia of the titanium liquid is small, and the flow performance is poor. During the production process, it is easy to cause defects such as pores on the surface and inside of the titanium screw. If you want to make the titanium screw bright and colorful, then There are two ways to remove the surface reaction layer of titanium screws:

  1, sandblasting

  The sand particles impact the surface of the titanium screw, thereby generating intense sparks. The temperature rise will react with the surface of the titanium screw, forming secondary pollution and affecting the surface quality. It takes 15 to 30 seconds to remove the sticky sand, surface sintered layer and part of the oxide layer on the surface of the casting, and the reaction layer on the remaining surface is quickly removed by chemical pickling.

  2, pickling

  The use of pickling can quickly and effectively remove the reaction layer on the surface of the titanium screw without causing pollution of other metal elements.

  Titanium screws look like steel with a silver-white luster. It is a transition metal. Pure titanium screws have high strength, low density, high hardness, high melting point and strong corrosion resistance, so they can be used in many fields. 

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