Copper Alloy Castings And Sand Casting

Posted by wearresistant on Apr 13, 2019 in Allgemeines |

Sand casting and CO2 process with Copper Alloy Castings
Conventional floor molding and benchtop molding methods for producing castings using rough or loose patterns are still very widely practiced in the copper base alloy casting industry, and they have the great advantage that the pattern cost is the cheapest for a small number of castings.

In recent years, copper alloy casting technology has made considerable progress, and the production of castings has a high degree of integrity to meet many critical applications where inspection requirements are particularly burdensome. The most flexible casting technology uses sand molds. It is also suitable for single or long-term casting and is suitable for castings from a few grams to several tons.

The CO2 process has recently been introduced into casting work and has great potential to replace almost all dry sand molding and most green sand molding. Rather than using sand bonded to natural clay, sodium silicate is mixed with silica sand and converted to form of silica during aeration with CO2 , which acts as a binder for the grit.

The casting process is more versatile than manufacturing because it has fewer restrictions on shape. Parallel side and right angle components are the least expensive to manufacture components and can also be obtained in castings, but it should be noted that the pleasing appearance cost due to the smooth outer surface is no longer increased and greatly increases the attractiveness of the sale. It also makes a valuable contribution to strength and stiffness. By redesigning the castings, the potential of many engineering components can be increased without limiting their service performance, which often leads to cost reductions.

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