Alloy Tech, Bangalore Bangalore, Karnataka

In die casting, molten metal is injected into a mold at a high pressure. The pressure can range from about 1, 400 psi to as high as 30, 000 psi. By pressurizing the mold, the cast object will be more uniform and will display an attractive finish. In many cases very little or no post-casting machining is needed to complete the item. Pressure molding also provides for precise dimensional accuracy that is critical for parts used in products with interchangeable parts. Aluminum, Zinc and Copper alloys are the materials predominantly used in die-casting. Die-casting can be done using a cold chamber or hot chamber process. Die-c In a cold chamber process, the molten metal is ladled into the cold chamber for each shot. There is less time exposure of the melt to the plunger walls or the plunger. This is particularly useful for metals such as Aluminum, and Copper (and its alloys) that alloy easily with Iron at the higher temperatures.

An ingot is usually rectangular in shape and is subsequently rolled into blooms and billets. Ingots play an integral part in the production of almost all aluminum products. Plates, sheets, foils, wires, rods, and bar products are all produced by pressing or rolling ingots.

Zinc Ingots: Zinc is a metallic chemical element. It has a white color with a bluish tinge. It has a high resistance to atmospheric corrosion and a major use is as a protective coating for iron and steel sheet and wire. Galvanized sheets are a prime example. The melting point of zinc is 419 deg C.  Zinc is a sacrificial material that will give itself up before the steel trap will start to rust. This method is also employed on ship hulls as well as other steel objects in contact with highly corrosive environments. Galvanized conduit and tubing is galvanized to deter rust from small scratches. The galvanized coating will sacrifice itself. Zinc Ingot is refined metallic Zinc in an ingot form.  

Aluminium casting processes are classified as Ingot casting or Mould casting. During the first process, primary or secondary Aluminium is cast into rolling ingot (slab), extrusion ingot (billet) and wire bar ingot, which are subsequently transformed, in semi- and finished products. The second process is used in the foundries for producing cast products. This is the oldest and simplest (in theory but not in practice) means of manufacturing shaped components. High-pressure die-casting is a process we use to make aluminum die cast parts. We inject molten aluminum alloy metal under pressure into a steel die to produce aluminum parts. Die-casting is a very inexpensive aluminum part manufacturing process. When the molten metal is injected in the mould, the metal solidifies at a very fast rate. The metallurgical structure and different metallic phases have not the time to find equilibrium in the material. After the part has cooled down to room temperature, the ageing process in the metallic structure is starting. The different phases begin to move to their equilibrium state. With this movement, internal stresses are relaxed resulting in loss of hardness, loss of tensile strength properties and increase of ductility (elongation propertie

In die casting, molten metal is injected into a mold at a high pressure. The pressure can range from about 1, 400 psi to as high as 30, 000 psi. By pressurizing the mold, the cast object will be more uniform and will display an attractive finish. In many cases very little or no post-casting machining is needed to complete the item. Pressure molding also provides for precise dimensional accuracy that is critical for parts used in products with interchangeable parts. Aluminum, Zinc and Copper alloys are the materials predominantly used in die-casting. Die-casting can be done using a cold chamber or hot chamber process. Die-c In a cold chamber process, the molten metal is ladled into the cold chamber for each shot. There is less time exposure of the melt to the plunger walls or the plunger. This is particularly useful for metals such as Aluminum, and Copper (and its alloys) that alloy easily with Iron at the higher temperatures.  In a hot chamber process the pressure chamber is connected to the die cavity is immersed permanently in the molten metal. The inlet port of the pressurizing cylinder is uncovered as the plunger moves to the open (unpressurized) position. This allows a new charge of molten metal to fill the cavity and thus can fill the cavity faster than the cold chamber process. The hot chamber process is used for metals of low melting point and high fluidity such as tin, zinc, and lead that tend not to alloy easily with steel at their melt temperatures. Die casting molds (called dies in the industry) tend to be expensive as they are made from hardened steel-also the cycle time for building these tend to be long. Also the stronger and harder metals such as iron and steel cannot be die-cast.  

An ingot is a mass of metal or semiconducting material, heated past its melting point and then cast into a shape, which is easy to handle, often a bar or block. Additionally, ingots may be moulds from which metal objects are cast. An ingot is usually rectangular in shape and is subsequently rolled into blooms and billets. Ingots play an integral part in the production of almost all aluminum products. Plates, sheets, foils, wires, rods, and bar products are all produced by pressing or rolling ingots.  Ingots are cast from molten aluminum. In the cast house, crucibles of molten aluminum empty their silvery liquid either directly into moulds or into a holding furnace where the metal is kept molten at temperatures between 1200 and 1500 degrees F. Alloying elements are then added.