Customer case | LiuGong
Construction machinery quality is reflected in the finished product and in every manufacturing stage. Sheet-metal surface treatment is a foundational production step with an important role in subsequent coating and quality control. Qingyuan supplies surface treatment products and professional services to meet LiuGong’s production needs, helping strengthen its process foundations and maintain stable production quality.
Application needs
This case mainly involves cold-rolled steel (CRS), hot-rolled steel (HRS), stainless steel (SS) and aluminium alloy (AL). To address different surface characteristics and treatment requirements, Qingyuan supplies products for degreasing, silane treatment and phosphating, coordinating pretreatment stages to prepare for subsequent production.
Product support
The main products used in this case are:
Degreasing: QOH-63A＋QOH-63H, for degreasing and cleaning sheet surfaces to establish a clean basis for subsequent treatment.
Silane treatment: QSi-50, used in the silane treatment stage to support pretreatment before coating.
Phosphating: QZn-31R/M, used in the phosphating stage to meet the surface treatment needs of the relevant production process.
Service support
Qingyuan focuses on connecting product applications effectively with production needs. Its products support each pretreatment stage and help the customer manage process quality. Careful control of these foundational steps supports LiuGong’s consistent output of conforming products.
Qingyuan will continue to develop its surface treatment expertise and respond to customer needs with reliable products and practical services, supporting LiuGong’s stable production and quality assurance.