The process performance and process technology of aluminum casting

The aluminum casting process can be divided into the sand casting process and the special casting process. The aluminum casting main process of casting includes metal smelting, model manufacturing, casting solidification, demoulding, and cleaning. The main casting materials are cast steel, cast iron, and cast non-ferrous alloys (copper, aluminum, zinc, lead, and so on). Special casting technologies embody centrifugal casting, unaggressive casting, differential pressure casting, pressure casting, plaster casting, ceramic casting, etc. Next, let's take a look at the process performance and process technology of aluminum casting. Here are some answers.

Here is the content list:

Process performance of aluminum casting.

Two kinds of aluminum casting technology.

Process performance of aluminum casting.

Aluminum casting method performance is sometimes understood as a mix of these performances that are most outstanding within the method of filling the mold, crystallization, and cooling. Fluidity, shrinkage, airtightness, casting stress, air absorption. These characteristics of metallic element casting depend upon the composition of the alloy however also are associated with the casting factors, alloy heating temperature, the complexness of the mold, the gushing riser system, and therefore the gate form.

Fluidity

Fluidity refers to the power of the alloy liquid to fill the mold. The liquidness determines whether or not the alloy will forge complicated aluminum casting. There are several factors touching liquidness, in the main the composition, temperature, and solid particles of metal oxides, metal compounds, and different pollutants within the alloy liquid. However, the basic external factors are gushing temperature and gushing pressure (commonly called the gushing head) the heights.

Contractility

Shrinkage is one of the main characteristics of aluminum casting. Usually speaking, the alloy is split into 3 stages from liquid gushing to set and cooling to temperature, particularly liquid shrinkage, set shrinkage, and solid-state shrinkage. The shrinkage of the alloy encompasses a decisive influence on the metallic element casting quality. It affects the shrinkage cavity size, stress generation, crack formation, and size changes of aluminum casting. Usually, aluminum casting shrinkage is divided into volume shrinkage and linear shrinkage. In actual production, linear shrinkage is mostly accustomed live the shrinkage of the alloy.

Two kinds of aluminum casting technology.

For the aluminum casting industry, there are mainly two aluminum casting process technologies: gravity casting and pressure casting. Each aluminum casting kit has its demand and market, and they can be said to complement each other. Gravity casting is divided into sand casting and hard casting. The liquid metal is poured into the cavity by the gravity of the metal itself. Pressure casting is divided into low-pressure casting and high-pressure casting. The molten metal is instantly pressed into the casting cavity by the additional pressure.

JOC Machinery Co., Ltd. was established in 2000, specializing in the foreign trade business of quality aluminum casting. For more questions about aluminum casting and aluminum casting kits, please consult us. Years of accumulated R&D and production experience will provide you with more product services and technical support! Our official website is http://www.jocmachinery.com/.