Electrochemical polishing of titanium rod and titanium alloy rod!

Release time：2021-09-24 21:20:47 丨 Number of visits：

Titanium rod rolling light parts and abrasives in thin acid or thin alkali with emulsifier (or corrosion inhibitor), with the rotation of the roller and each other attack grinding, so as to achieve the purpose of bright appearance. It is suitable for small parts and difficult to polish and polishing parts of the disposal. Correct selection of rolling standards can improve productivity and quality.

1, the shape of the drum

The shape of the drum is circular, hexagonal and octagonal, and the polygon is practical. This is because the radius of the barrel wall from the shaft is different, and there is a certain point of view, so the rolling parts are easy to change orientation, bump against each other more opportunities, uniform grinding, high efficiency, so as to shorten the rolling time.

2, the scale of the drum

Straight for 50mm-100mm, length because of the number of cells and different. The length of the pattern drum is 600-800mm; The second pattern is 800-1500mm. Usually a larger one is better. This is because parts in the drum by pressure and friction, so the amount of cutting also increased. But about those afraid of compression and easy deformation of parts, can use a small drum, and will increase the length of the drum.

1) Data for roller

There is a direct relationship between the rotational speed of the drum and the cutting amount of parts in a certain range, that is, the faster the rotational speed, the greater the cutting of the metal surface. However, it drops when the speed exceeds a certain limit. Because when the speed is too fast, the centrifugal force of the parts in the drum increases, so that the friction force decreases. Generally, 45r/min is appropriate.

2) Abrasive and solution for rolling

Polishing abrasives include pumice stone, quartz, granite skin horn, shell, iron and ceramic fragments. The size of abrasive grain should be larger or smaller than each hole of the piece. The number of contents in the drum is also an important factor affecting the quality of parts of the agricultural surface, the drum is usually installed in 70% of the volume of the drum is appropriate. For heavy www.lh-ti.com titanium parts or threaded parts, the loading quantity should be controlled at 80%-90%. The solution in the drum should be added to account for about 95% of the volume of the drum (note: when adding acidic solution to the drum, the water should be added first, and then acid, to avoid corrosion of parts in the rolling process, because the increase of time, the concentration of the solution gradually decreased, or even lose the effect. Therefore, the concentration of the solution should be checked and replaced at regular intervals. The rolling time should not be too long, otherwise it will damage the parts. Use the brush to remove the burr, terbium chloride, residual oil and corrosion mud, etc., and make the parts have a certain luster. Be sure to point out that elastic, rigid or thin-walled parts should be removed in time after the end of rolling, otherwise it is easy to cause hydrogen infiltration or local overcorrosion.