Several current surface treatment methods for titanium building materials in the world

According to the data, there are roughly six treatment methods for the surface of titanium materials. Now we will introduce and analyze them one by one:

1. Sandblasting method

The surface of the titanium material is sandblasted with a certain particle size shot blasting to make the surface of the titanium material rough. The surface reflectivity is reduced, and the disadvantage is that it is easy to deform the plate when processing the thin plate.

2. Pickling method

The surface is treated in the acid solution of HF + HNO3 to make the surface of the plate present the original color of Grade 16 Ti-0.5Pd Titanium Tube. The disadvantage is that the color is single, and the surface color consistency is easily damaged during use, which is relatively unsuitable for the decoration industry.

3. Rolling embossing method

After the surface of the roll is pretreated, the titanium plate is smoothed, so that the surface of the titanium plate produces regular unevenness. The key to this method is the surface treatment of the rolls. The existing domestic treatment methods are sandblasting, electric spark treatment, and laser treatment.

4. Anodizing method

The color tone control of this method uses an anodizing device to give a rated voltage, and as the voltage rises, the color changes. This method can be divided into direct current electrolytic anodizing method, alternating current electrolytic anodizing method, laser irradiation multicolor treatment in solution, thick film anodizing method and chemical oxidation method.

When the DC electrolysis setting voltage is a certain multiple of the AC electrolysis setting voltage, the same color can be obtained. According to the increase in voltage, the color changes as follows: gold, red purple, cyan, yellow, purple, cyan, cyan, green, yellow-green.

To carry out the colorful coloring treatment of the titanium material, the covering method and the anodizing treatment can be combined, but the process is complicated. The method of laser irradiation in the solution can be used to carry out the colorful treatment of Gr7 Ti-0.2Pd Titanium Plate. The method is to irradiate the titanium surface with laser in the solution. As the anodic oxidation and laser irradiation are carried out at the same time, the part irradiated by the laser is etched and the oxide film becomes thinner. During the secondary anodization of the laser-irradiated part, the resistance of the etched part is reduced and the current is large. The thickness of the oxide film formed during the formation of the oxide film is different from that of the part that is not irradiated by the laser, and the color is different. Repeat this many times to obtain Multi-colored titanium surface.

5. Rolling embossing method + pickling

It adopts the advantages of rolling method and pickling method, so that the titanium surface with regular unevenness reveals the metal color that titanium metal should have, and it can give people a noble and solemn feeling in application.

6. Sandblasting + coloring method

This method reduces the reflectivity of the surface of the board, and at the same time obtains the required surface color, which is also popular in the decoration industry.