Insulation riser: a key auxiliary material in casting production

Casting materials are one of the core factors affecting casting quality. Besides the raw metal, insulating risers, as crucial casting auxiliary materials, play an irreplaceable role in ensuring casting integrity.

Insulating risers are typically made from lightweight insulating materials such as perlite and ceramsite, bonded to heat-generating materials using a binder. They offer excellent thermal insulation, high-temperature strength, and low thermal conductivity, significantly delaying the solidification time of molten metal, enabling efficient shrinkage feeding and reducing defects such as shrinkage cavities and porosity.

Insulating risers manufactured by Ruihai Changrun Technology (Qingdao) Co., Ltd. are widely used in the production of large and medium-sized castings such as cast steel, cast iron, and non-ferrous alloys. They effectively improve process yields, reduce energy consumption and cutting costs, and are an ideal choice for enhancing casting quality and economic benefits. The company is committed to providing customers with high-quality, high-performance casting material solutions.