Titanium rod GR5 titanium rod surface polishing

electrochemical polishing

Electrochemical polishing is a method that uses electric current in a hydrophobic solution to improve the finish and gloss of metal surfaces. In the electrochemical polishing process of titanium rods, hydrophobic solutions and applied current are usually used to improve the surface quality through electrochemical reactions. Here are the general steps and some carbohydrate solutions that may be used:

step:
Preparation: Clean and set up the surface, ensuring it is liberated from care and oil.

Choice of electrolyte arrangement: Pick a proper electrolyte arrangement, typically an answer containing a few synthetic substances, like sulfuric corrosive, sulfuric corrosive, sodium hydroxide, and so forth. The arrangement is decided to respond when an electric flow is gone through, working on a superficial level completion.

Set current density: Determine the appropriate current density, which is the ratio between current and titanium. Controlling current density helps avoid overpolishing or surface damage.

Electrode Arrangement: A titanium rod serves as the electrode or cathode, depending on the chosen electrolyte solution and the desired drying reaction.

Perform conditioning polishing: Dip the titanium rod into the dissolving solution and apply an electric current to begin the conditioning polishing process. During this process, uneven substances on the surface are removed through conditioning reactions, making the surface smoother.

Cleaning and Handling: After proper polishing is completed, the titanium rod is removed from the electrolyte solution and properly cleaned and handled to prevent further chemical reactions.

Titanium rod roller polishing

Titanium rod roller polishing is to grind parts and abrasives against each other in dilute acid or alkali with emulsifier (or corrosion inhibitor) added as the drum rotates, thereby obtaining a bright surface. It is suitable for the processing of small parts and parts that are difficult to grind and polish. Proper selection of roller polishing standards can improve productivity and quality.

1. Shape of roller

The shapes of the rollers include circles, hexagons, octagons, etc. Among them, polygons are more practical. This is because the barrel wall has different radii from the axis and has a certain angle, so the rolling parts are easy to change their orientation, and the chances of collision with each other increase. The grinding is uniform and efficient, thus shortening the rolling time.

2. The size of the roller

The straight calibration is 50mm-100mm, and the length varies depending on the number of grids. The length of the first pattern roller is 600-800mm; the second pattern is 800-1500mm. Usually the larger one is better. This is because the parts are subjected to high pressure and friction in the drum, so the amount of cutting is also increased. But for those parts that are afraid of being stressed and easily deformed, a small roller can be used and the length of the roller can be increased.

⑴ Materials for rollers

There is a direct relationship between the drum speed and the amount of parts removed within a certain range, that is, the faster the speed, the greater the removal of the metal surface. However, when the speed exceeds a certain upper limit, it decreases. Because when the rotation speed is too fast, the centrifugal force of the parts in the drum increases, which reduces the friction. It is usually appropriate to control it at 45r/min.

⑵Abrasives and solutions for roller polishing

Abrasives used for roller polishing include pumice, quartz, granite horn, shells, iron filings and ceramic fragments. The size of the abrasive particles should be larger or smaller than each hole in the piece. The amount of materials inside the drum is also an important factor affecting the quality of the parts. The amount of people inside the drum is usually appropriate to account for 70% of the drum volume. For heavier titanium parts or threaded parts, the loading capacity 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, add enough water first, and then add acid to prevent parts from being corroded during the rolling process due to the increase in time. , the concentration of the internal solution gradually decreases, and even loses its effect. Therefore, the concentration change of the solution should be checked at regular intervals and replaced. The rolling time should not be too long, otherwise the parts will be damaged. That is, use a brush to remove the surface of the parts Burrs, terbium compounds, residual oil and corrosion sludge, etc., and make the parts have a certain luster. It must be pointed out that elastic, rigid or thin-walled parts should be taken out in time after rolling, otherwise it will easily lead to hydrogen penetration or local over-corrosion.