1、Product Introduction of High-Efficiency Compound Anti-Veining Agent

High-Efficiency Compound Anti-Veining Additive is a composite material made from organic compounds, inorganic substances, and metal oxides in specific proportions through a specialized processing and mixing procedure. It exhibits a lilac or dark gray appearance and has a bulk density of 0.60–0.90 g/cm³.

Primarily used in cold box or coated sand hot core processes, it effectively mitigates the thermal expansion of sand and enhances the collapsibility of sand cores. By adding 0.3–0.8% of this high-efficiency compound anti-veining additive during sand mixing, vein defects in the internal cavities of castings can be completely eliminated.

2、Physical Properties of High-Efficiency Compound Anti-Veining Agent

3、Characteristics and Advantages of High-Efficiency Compound Anti-Veining Agent

• DYS-M combines the advantages of both organic and inorganic materials, featuring low gas generation and excellent collapsibility.
• Minimal impact on sand core strength without significantly increasing resin addition.
• Eliminates vein defects in castings and improves the internal surface finish.
• Enhances sand flowability, resulting in denser sand cores and effectively reducing sand adhesion defects.
• Effectively suppresses associated defects such as sintering, porosity, and dimensional deformation in castings.

4、Usage Method of High-Efficiency Compound Anti-Veining Agent

• The recommended addition rate of the DYS-M series anti-veining additive is 0.3–0.8% of sand weight.
• It should be added before resin introduction, either through a screw feeder or by manual measured addition, during sand mixing.
• A mixing time of 60–90 seconds is recommended to ensure thorough integration of the additive with sand and resin.