Metal fabrication Ontario is a process that adds value when constructing structures and machines from raw materials. A fabrication shop usually gets its job by bidding on it. Engineering drawings are being evaluated by the client and when the contract is awarded, the contractor will build the product. Huge fabrication shops have different value added processes situated in one factory which includes cutting, machining, forming and welding.
If one looks back at history, the process of metallurgy is among the oldest applied sciences. The history of metallurgy can be traced back to 6000 BC. Today there are already 86 known metals. Centuries before the 19th century, only 24 of these 86 metals were discovered and 12 of these 24 metals were only discovered in the late 18th century. The first metals that were discovered were the gold and copper and until some 7700 years ago, only 12 of these precious metals were known to humans. During the thirteenth and fourteenth centuries, four metals were discovered: antimony, arsenic, bismuth and zinc. The metal platinum was only discovered in the 16th century. The other seven metals which are referred to as the Metals of Antiquity were the important metals where the civilization was based. The following are the seven important metals: gold, copper, silver, lead, tin, iron and mercury.
These seven metals were known and used widely by the Mesopotamians, Greeks, Romans and the Egyptians. They understood how to effectively used these tools to help them cope up with the harsh environment as well as to provide them with their luxuries in life. The occurrence of these metals though was not really abundant and only the first two metals which are the gold and copper were used vastly. The history of these metals can be closely linked to gemstones as well as coins.
Gold is perhaps the most used of all metals. This metal is extensively found in antique objects which are used mainly as jewelry like rings, bracelets and necklaces. Early gold artifacts though are not entirely pure. They contain significant amounts of silver. Because of this, ancients began naming another metal which they call electrum. This is an alloy of silver and gold. It has a pale yellow color which is somewhat similar to that of amber. Early gold was rarely pure. The symbol attributed to the element gold is Au which comes from the Latin word aurum which means shining dawn.
People during the stone ages began to fashion gold into different ornaments as well as jewelry. They have learned that it can be crafted into wires and sheets easily. Gold serves its purpose as a noble metal in that it is tarnish free and at the same time noncorrosive.