LianJiang Metals Company

  What is Thermal Expansion? One day you're trying to open a pickle jar, but the lid is super tight and you just can't do it. You try using a rubber grip, but that doesn't work. You try hitting the jar lid on the counter to break the seal, but nothing happens. Finally, you try your grandma's favorite trick: you run the metal jar lid under hot water to heat it up. The jar opens easily. But why? The answer is thermal expansion. Thermal expansion occurs when an object expands and becomes larger due to a change in the object's temperature. To understand how this happens, we need to think about what temperature actually is. Temperature is the average kinetic (or movement) energy of the molecules in a substance. A higher temperature means that the molecules are moving faster on average. If you heat up material, the molecules move faster and, as a result, they take up more space - they tend to move into areas that were previously empty. This causes the size of the object t...

  Many everyday items are  aluminum Casting Foundry . Casting metal refers to forming by melting and then pouring it into a mold. When the metal cools and solidifies, it adopts the shape of the mold surrounding it, and once it is completely cooled, it can be withdrawn. When they want to make cast aluminum products, manufacturers can choose several methods. One of them is called die casting. Species Conversion is a broad term that describes various methods. Die casting is just one of them, although as far as aluminum is concerned, die casting is one of the three most popular. Two other important methods are called permanent molds and sand casting. Die casting can provide very high accuracy and a very consistent shape, while sand casting is more versatile and is better for objects with complex patterns and designs. Die Casting In die casting, the manufacturer first melts the aluminum and then presses it into a steel mold under high pressure. The mold is called a mold and is made...