ZINCO ZP 2800M - Wire Drawing Zinc Phosphate Organization

Zinc phosphate chemical coatings can be divided into three categories according to their application areas:

• Application to prevent frictional wear before metal forming processes such as cold drawing, cold forging, deep drawing,
• Application to increase paint adhesion before electrostatic powder coating and wet paint,
• Application for improving wear and corrosion resistance in combination with protective lubrication.

When used before forming metals, a coating in the range of 5 - 15 g/m2 is usually required. It is most commonly used in wire and pipe drawing processes. The phosphate layer is firmly bonded to the metal surface and reduces friction in the rolls and molds during the cold drawing process, allowing these processes to be performed easily. The phosphate layer remaining on the surface after the drawing process creates high corrosion resistance and prevents rusting during storage and transportation.
Provides continuity on the surface and enables high drawing speeds for multiple drawing operations in the high carbon wire drawing sector such as steel rope, bed spring, concrete bundle production. In cold forging operations such as bolt and screw production, wire drawing zinc phosphate products are used for long mold life and to perform difficult operations.
If zinc phosphate coating chemicals are to be applied under paint, it is necessary to obtain a coating in the range of 2 - 6 g/m2 on the metal part. A homogeneous coating with a fine crystalline structure is important in terms of paint adhesion and corrosion resistance in difficult environmental conditions.

Method of Use

 For application before protective oil, the desired coating weight is usually 10 - 35 g/m2. Zinc phosphating with a thick crystalline structure and high coating weight retains the protective oil and provides effective corrosion resistance. Suitable for use on automobile parts, fasteners and machine parts.