Melt copper

Copper has been processed by humans for millennia. This is certainly due to the positive properties of melting and casting copper. Even today, many home improvement and hobbyists are enthusiastic about the melting of copper.

The influence of copper on humanity was and is enormous. Thus, after the Neolithic Age with the Copper Age, a whole era after the semi-precious metal was named. Even the subsequent Bronze Age would not exist without copper. The good alloyability of copper with the different resulting properties is also of greater importance today.

Copper is easy to melt and pour

Ultimately, therefore, can be used also requirements for melting and casting of bronze on copper. Quite the contrary to the melting of aluminum, which can react violently during melting and also during casting.

Machining techniques after melting and casting

In addition, the further processing steps after the melting and casting of copper are versatile. This allows you to process the cast copper almost as you like:

  • solder and weld
  • grind and polish
  • age and patinate

Preparations for melting copper

You need a sufficient melting furnace. The melting temperature of unalloyed copper is 1,086 degrees Celsius. Accordingly, your furnace must meet this performance. Also follow the instructions of the manufacturer of the melting furnace.

Of course, smaller copper pieces melt much faster than large pieces. Therefore, some companies also offer so-called copper pellets, which are simply filled in the crucible. You can chop up existing copper as if by sawing.

Occupational safety - you work with temperatures over 1,000 degrees!

Please write down the work safety when melting copper. Provide adequate ventilation of any toxic fumes. Wear heat-resistant protective clothing, suitable gloves and, of course, protective goggles.

Quality of the self-molten copper

In addition, bear in mind that you can not melt and pour copper materials that comply with the respective DIN EN in a private environment. The keyword here is only the exact oxygen content of various copper materials. In addition, when smelting old copper, you can never say for certain whether it is unalloyed copper or a copper alloy.

Eventually material properties will be deteriorated

In this case, you can, for example, reduce the weldability of copper, which you have cast from different copper pieces. For example, if a piece contains lead as a copper alloy, it is no longer a single-phase copper, but rather a multiphase copper alloy that is difficult to weld.

molds

You can build a mold yourself. This requires oily molding sand with which you can then create a negative impression. Then both molds are mounted on each other. Do not forget the branch channel for filling the liquid copper. After cooling, you can take the solidified copper part out of the mold and clean it.

Now you have many techniques and procedures open for further editing. For example, as the copper mentioned above age or grind.

Tips & Tricks

You can work copper in many ways. Of course, you will also find suitable guides and instructions in the house journal. For example, for driving copper as well as the various soldering techniques for copper.

Video Board: Making 5 Pound Copper Ingots From Scrap