My Homepage

ABC diecast models Article Directory

ABC Article Directory Die casting is a process used to produce metal parts by using high pressure to force molten metal into a metal mold (also called a die). A die is a specialized tool that is customized to produce complex parts with a high degree of accuracy. A die is designed to be reusable and are made of alloy steels with at least two sections. There is the fixed die half (sometimes called the cover half and the ejector die half. Using two part dies allows easy removal of the parts made with die casting. The die is fit within the die casting machine. The hydraulic pressure of the machine clamp the two halves of the die together. Once the machine has the die clamped together and position properly, the molten metal is forced by a plunger into the die cavity. Once the metal solidifies, the plunger is removed. The die opens and the casting is removed. Die casting is used by the metalworking industry to produce items in high volume that are used in industries ranging from automobiles to toys. The process offers a way to produce more shapes and components than any other manufacturing process. Setting up a die casting production line can be very expensive,diecast models, but large quantities of castings can be produced at a low cost per piece. The benefits offered by the die casting method are high-speed production, accuracy and stability, strength and weight,, multiple finishing techniques and simplified assembly. A die cast toy is any toy that is made with the die casting method. The two metals used to make toys is either a lead alloy or Zamac (an alloy of zinc that also includes small quantities of aluminum and copper). Die cast toys made before World War II contained lead, iron and other impurities. This would cause the toy to become distorted or would crack for no reason. This is one reason that die cast toys made before World War II are very difficult to find in good condition. The most common die cast toys are replica scale models of automobiles, aircraft, trains, construction equipment and military vehicles. Lesney (later known as Matchbox) started using the die cast method in 1947 to make the popular toy car that they are so well known for. Many adults purchase die cast toys as collectibles and not for toys to be played with by children. Die cast toys started becoming popular items to collect in the 1950s. Die cast toy collections began growing in popularity as the detail and quality of the toys increased. In 2005, the price of zinc began rising in the global market. In 2006 and 2007, the price of die cast toys began to increase steadily due to the rising price of zinc. Now the price of die cast toys that are made with large amounts of metal are 50% more than what the price was in 2005. Vintage and antique die cast toys may or may not be found in good condition. If they are not in good condition, they may still be worth collecting. This mostly depends on how rare the die cast toy model is. Researching specialty catalogs, collector's magazines, online die cast collector information, the library, on-line auction sites etc. can help you determine the rarity and value. When collecting new die cast toy vehicles, care should be taken to preserve them. First, it is best to leave the toy in its original packaging. Cover the package with plastic to help prevent deterioration of the material. The toys should be stored in a cool dry place away from sunlight to prevent the package from fading and damage to the die cast toy's finish.