Traditional Culture Encyclopedia - Traditional festivals - How to make a bronze plaque?

How to make a bronze plaque?

Copper plaque production process:

1. Agree on the text of the bronze medal. Determine the size of the bronze plaque and the font of the text content.

2. Material: copper plate or brass plate.

3. Blanking: firstly, the material is annealed copper plate.

4. Paste the drawings, and paste the determined drawings on the next copper plate.

5. Put the copper plate with attached drawings on the rubber plate for forging, forge according to the lines on the drawings, and outline the styles on the drawings.

6. Start working, and anneal the copper plate hooked from the front again according to five procedures to make the copper plate soft, and carve along the carved contour line from the back to a certain extent to achieve the desired pattern effect.

7. Fine grinding, that is, annealing the products carved in the six processes to soften the copper plate. According to steps 5 and 6, the carving process is carried out again to make the content of the copper decorative board more stereoscopic and layered.

8. Shading treatment. Adding shading to the bronze plaque will make the whole bronze plaque flat and support, and the contrast between the effect of the organ and the formation of words will make the content of the bronze plaque more prominent and three-dimensional.

9. Skeleton welding treatment According to the size of the copper plaque, different galvanized square pipes are used for welding brackets, which are made according to specific site requirements.

10, the polished product will produce copper ash after annealing, and some traces left by chiseling will be polished to make the product more perfect and fine.

Extended data:

There are many corrosion processes for copper signs, and ferric chloride solution is the most economical and practical one. Melt ferric chloride with tap water and adjust Baume degree to 37. Although the higher the temperature, the faster the corrosion rate will be, but the evaporation rate of ink and the bearing capacity of equipment should be considered. The advantage of this formula is that copper ions can be electrolyzed from the solution by DC electrolysis and reused.

For the production of signboards, the corrosiveness of brass plate is greater than that of stainless steel plate, so the waste liquid after corrosion of stainless steel plate can also be used for brass plate corrosion, and it is very desirable to recycle this waste for environmental protection. The bright effect of corroded brass sheet and the original color of brass sheet can be corroded by chromium trioxide and sodium chloride solution.