Knowledge

At the time of design, in addition to the working conditions and metal material properties of the casting geometry and size to determine...

When casting, the gas from the casting mold should be ignited in time so as to avoid the gas holes caused by the casting mold holding breath...

Shot blasting equipment: it is a device that uses compressed air as the power to spray iron shot at high speed to the castings that need to be cleaned.

Due to the bad working environment, it is easy to be smashed, bruised, scalded, burned and other accidents.

Precision castings have good wear resistance and shock elimination function, because graphite in cast iron is conducive to lubrication and oil storage, so good wear resistance.

The foundry production process is generally like this. Generally speaking, it can be divided into pressing wax, shell making, casting, post treatment and inspection.

The riser should be set at the highest and thickest part of the casting as far as possible, and several hot joints should be supplemented with a riser VI as far as possible.

The influence of castable: the higher the carbon content in the raw material, the smaller the linear shrinkage, the lower the carbon content, the greater the linear shrinkage.

Precision castings contain a variety of metal and non-metal impurities, easy to lead to loose structure, high porosity, so it is difficult to ensure the quality of oxide film.