Why are fiberglass filter combo bags chosen for aluminium castings

Fiberglass filter combo bag is weaved by special high-twist & high-strength alkali-free fiberglass yarn, coated with phenolic resin, suitable "carbonized" by high temperature and passed special post-treatment.

Main Features:

● New environmental protection material, does not burn during whole use process , no harm to human body.  

● Advanced production equipment, warp and weft standard for base cloth, high temperature resistant coating mesh uniform, the finished product is exquisitely made without burrs.  

● Both sides of the bag adopt square hole fixing device technology, more convenient operation and improve the working rate.

Why are fiberglass filter combo bags chosen for aluminium castings?

● The liquid aluminum is divided between the two ends of the ingot, which determines the temperature distribution around the crystallizer device, and the temperature distribution will affect the metallographic structure of the cured aluminum alloy ingot.

● The second purpose is to keep the oxide in the bag, reduce the aluminium flow and filter out all the large particles that mainly include alumina, chloride and titanium,

Boron, magnesium oxide and large resistant material shed.

● Fiberglass Filtration Combo bag is a process in contact with liquid aluminum in casting foundry, so it is very important and is considered to be the key to achieve the casting quality standards of aluminum and aluminum alloy flat ingot.

Fiberglass filter combo bag is applied to filter large diameter aluminum ingot and billet, rectangular aluminium slab, and aluminum-alloy casting parts.