Coated Titanium Anode Mesh Processing Process

Anode coating: ruthenium-iridium, iridium-tantalum, ruthenium-iridium-platinum, platinum

Processing: Welding - Sandblasting - Annealing - Brushing - Baking - Lowering - Liquid preparation - Acid washing
1, Welding

Titanium materials are mainly welded by argon arc welding, only the same material can be welded together.

Plate and pipe are fixed by spot welding first, and then welded all over, while the net can only be spot welded.

2, Sandblasting

Sand blast to the substrate for impact grinding, the surface of the impurities, miscellaneous colors and oxidation layer removed, while sandblasting machine so that the surface of the titanium substrate coarsening, improve the effective contact area of the titanium surface, enhance the adhesion of the coating and the surface of the too.

The main points of sandblasting, spraying the hemp point, hemp surface to be uniform, can not miss the spray.

3, Annealing

Plate (net) on a very thick steel plate, required to put flat, aligned corners. And then put a piece of the same steel plate in the plate (net), diagonal screws. Make the next two steel plates fully extruded on the middle plate (net). After that, send it into the furnace with a temperature of about 500 for heating and calibrating, and keep it warm for 2 hours after reaching a certain time.

4, Brush coating

Will match the precious metal liquid, with a brush and brush coating on the substrate, into the drying oven for drying, so that the liquid quickly combined with the substrate, but also to prevent the liquid downstream of the substrate when the traces left behind. In the first 5 brushes, the liquid can be applied more to fill the surface of the substrate. The latter need to brush less liquid, so that the liquid brushing more evenly, but also to cover the front of the brush flowers, so that the coating is beautiful. Brush coating requires wearing a mask, the environment, ventilation, dust-free, especially not to see water. To ensure the purity of the liquid, the board surface is beautiful.

5,Baking

Polar plate after drying, into the furnace has reached a certain temperature insulation for a certain period of time to pull out, so that it is naturally cooled, oxidized. Then enter the next program.

Repeat the procedure: brushing, drying, heating and holding, cooling.

Brushing program about 20~40 times

6,Downloading

After determining the shape, quantity or quality of material required for making a certain equipment or product, take down a certain shape, quantity or quality of material from the whole or the whole batch.

After selecting the material, according to the drawings, and customer requirements to make a certain shape, quantity. Scribing, marking and punching. Whether you need to sand, which should be strictly according to the requirements of the drawings to operate.

7, Liquid distribution

According to the actual needs of customer requirements to configure the precious metal solution. Usually with the liquid is planned to brush the layer of the day before the preparation, because the liquid to be prepared after a period of time to dry before use. At the same time in the drying, need to keep stirring to prevent the liquid precipitation.

8, Acid washing

Acid washing process of the pickling liquid is generally a mixture of many kinds of acid, mainly sulfuric acid, nitric acid and hydrofluoric acid, etc., the corrosive nature of these mixed acids is very strong, at the same time has a strong oxidizing, higher temperature of the corrosive medium, which puts forward a very high demand for corrosion-resistant corrosion-resistant corrosion-resistant materials. Pour oxalic acid in boiling water according to a certain ratio, and put the substrate into the boiling pot for boiling and soaking. Oxalic acid can not only effectively remove the bluish oxidized skin on the base material when annealing, but also make the surface of the base material rougher and remove surface impurities through corrosion.

Pickling should always pay attention to the changes in the titanium substrate to prevent the formation of titanium oxalate on the surface of the substrate.