Aluminum alloy casting process performance, is usually understood as the full cast, crystallization and cooling performance in the course of the performance of the most prominent of those integrated. Mobility, shrinkage, air tightness,
Aluminium Casting casting stress, inspiratory. Aluminum alloy composition depends on these features, but also with the casting of factors, alloy heating temperature, the complexity of the mold,
Aluminium Casting pouring riser system and shape of the gate.
1.Aluminium casting process performance Liquidity
Liquidity refers to the ability of the mold filling of liquid alloy. Liquidity can cast alloys determined by the size of complex castings. In the aluminum alloy liquid eutectic alloy is best. There are many factors affecting liquidity, primarily composition,
Aluminium Casting temperature, and metal oxides present in the liquid alloys, metal compounds and other pollutants in solid-phase particles, but the fundamental factors external pouring temperature and casting pressure (commonly known as the casting pressure head) sums. Actual production, in the case of alloys have been identified,
Aluminium Casting in addition to enhanced melting process (refining and slag), the mold must also be improved manufacturability (permeability sand mold, metal mold exhaust and temperature), and without prejudice to casting under the premise of improving the quality of pouring temperature alloy to ensure liquidity.
2.Aluminium casting process performance Contractile
Shrinkage is one of the main features of cast aluminum alloy. Generally speaking, the alloy from the liquid pouring into the solidified until cooled to room temperature, is divided into three phases, namely liquid contraction, solidification shrinkage and solid-state contraction. Alloy contractility of the casting quality have a decisive influence,
Aluminium Casting which affects the size of the casting shrinkage, stress generation, crack formation and size changes. Casting shrinkage is usually divided into physical contraction and linear contraction in the actual production of the general application of linear shrinkage to measure the shrinkage of the alloy. Aluminum shrink the size, usually expressed as a percentage, known as shrinkage.
Aluminium Casting -- Casting
Casting process can be divided into three basic parts, namely, casting metal preparation, casting mold preparation and processing. Casting Metal casting is the production of metal castings for the cast material, it is a metal element as its main ingredients, and add other metals or non-metallic element of the composition of the alloy,
Aluminium Casting traditionally known as the casting alloys, mainly iron , cast and casting non-ferrous alloys. Metal smelting is not only a simple melting, but also smelting process, so that the metal poured into the mold in the temperature, chemical composition and purity aspects are in line with expectations.
Aluminium Casting To this end, in the smelting process in order to conduct quality control checks for the purpose of the various tests, the provisions of the liquid metal target is reached before being allowed to cast upon. Sometimes, in order to meet higher demands, the metal liquid came out even after furnace treatment, such as desulfurization, vacuum degassing, refining, processing, breeding or deterioration. Equipment commonly used in metal melting cupola furnaces,
Aluminium Casting electric arc furnace, induction furnace, resistance furnace, reflective heaters. Modeling is based on making the core casting process requirements, a good modeling in determining the method of molding materials prepared on the basis of the. Casting accuracy and all the economic effects of the production process depends primarily on the working procedure. In many modern foundry, the shapes making the core are achieved mechanized or automated.
Aluminium Casting Commonly used core sand molding equipment made of high, medium and low pressure molding machine, throwing sand machine, no box shoot squeeze molding machine, shoot core machine, cold and hot-box machine
