Pre burnt a lot of starch factory sales promotions

Pre burnt starch factory sales Large Shipping Pre burnt starch Features: 1, can be improved wet tensile strength hot sand outside, a starch sand surface voids when heated combustion, can buffer the thermal expansion of silica sand. Thus greatly improving the ability of anti-coarse sand. 2, wear resistance can be reduced difference between the sand and look to improve the sand from the mold, reducing type of waste rate due to poor play mode appears. 3, if the wet sand in place some time before closing type, sand surface dehydration caused the fall surface strength and easy to wear, erosion susceptible pouring molten metal. Place a long time or when the weather is dry, the problem is more serious. Sand can be improved by adding a starch dry sand of wind capacity, reducing the red sand casting defects. 4, starch can significantly reduce the sensitivity of sand moisture, and can reduce the moisture content of the sand and improve solid rate of sand. If the moisture content of the sand when the sand is low, but back appeared to be quite dry bulk and brittle. Adding a small amount to the sand of the goods, sand immediately becomes flexible, easy-to-use modeling. Use a higher degree of a starch effect will be more pronounced. 5, high-temperature strength sand reduced, thereby improving the appearance of sand shakeout performance of white powder, a water-soluble group burnt, burnt with good adhesion and toughness of performance can swell into a translucent burnt fingers deep in cold water viscosity ≥300- ? 2500mpa.s (2% aqueous solution) PH value ≥300-2500mpa.s (2% aqueous solution) Packaging: paper-plastic bag lined with plastic film bag, net weight 25kg. Transportation: available all kinds of transport vehicles, kept dry, and with the rain, waterproof, anti-moisture facility; not with toxic, hazardous, there are other abnormal odor mixed cargo; prohibited rain, water quality and other dirt contamination. Storage: Store in a dry, ventilated, cool place. Storage: One year pre-burnt starch factory sales Large Deals