XINDA AT-800BW alcohol-based foundry coating has been applied in the mass production of large ductile iron wind power castings and passed on-site production verification. Under the resin sand casting conditions for heavy-section QT400-18AL wind power castings in this project, the coating shows good adaptability. It helps mitigate common production issues including casting surface defects and low efficiency in post-casting cleaning, providing a feasible solution for mass production of large wind power castings under similar working conditions.

Ⅰ. Basic Project Information

The workpiece in this project is a core large casting for wind power equipment. Furan resin sand is adopted for mold and core making, matched with medium frequency furnace melting. Key casting parameters are listed below:

Ⅱ. Technical Parameters of AT-800BW Foundry Coating

XINDA AT-800BW alcohol-based foundry coating is selected for this wind power casting project. Key specifications are as follows:

Ⅲ. Summary of On-site Application Results

According to on-site production test data, AT-800BW alcohol-based foundry coating fits the working conditions of large heavy-wall wind power castings and delivers favorable application results:

• Favorable workability: The coating features good fluidity and easy brushing, enabling uniform coating formation. It achieves satisfactory adhesion to furan resin sand molds and cores. The coating remains stable during high-temperature pouring and resists peeling and erosion, suitable for long pouring cycles of large castings.

• Optimized casting cleaning process: After cooling, the coating shell can be separated from the casting substrate conveniently. It helps reduce manual grinding workload, shorten post-processing cycle and improve production turnover efficiency.

• Improved casting surface condition: It helps lower the risk of defects such as metal penetration and slag inclusion on large heavy-section wind power castings. Finished castings have smooth and clean surfaces with better appearance quality, meeting casting quality requirements of this wind power project.

Ⅳ. Application Scope

AT-800BW alcohol-based foundry coating boasts wide applicability for manufacturing large heavy-wall castings across various industries and materials:

• Applicable Materials: Large heavy-section castings of gray iron and ductile iron

• Target Industries: Wind power equipment, injection machinery, heavy general machinery manufacturing

• Compatible Processes: All resin sand molding and core-making processes

The wind power casting industry is developing towards larger dimensions, thicker cross-sections and higher precision, which puts forward higher requirements on foundry coatings in heat resistance, anti-metal-penetration performance, strippability and operational stability.

XINDA keeps focusing on the R&D and process optimization of alcohol-based foundry coatings. Supported by a complete product portfolio, standardized quality control and professional on-site technical services, XINDA develops reliable alcohol-based coating products including AT-800BW. We continuously deliver well-adapted alcohol-based foundry coating solutions for foundries at home and abroad. Our XINDA alcohol-based coatings help high-end equipment manufacturers improve casting quality, cut production costs and raise operational efficiency, promoting sustainable development of the foundry industry.