Application On Super-mirror Rolls

Ultra-mirror rolls are widely used in sheet metal, casting, calendering and coating machines to surface pressure on plastics (PVC, ABS, PP, etc.), leather, artificial leather, paper, textiles and other industries. For light, calendering and high precision coating, ultra-mirror rolls should have the following characteristics:

*High density: uniform coating structure and low porosity;

*High gloss: high quality and high precision calendering, calendering and coating effects, requiring a roll finish of 14 grades;

* High wear resistance: It is beneficial to maintain the super-mirror effect for a long time.

*High precision: The straightness, ellipticity and coaxiality of the roller are required to be high.

Yuanda uses HVAF thermal spraying technology to prepare special WC multi-alloy coating on the surface of super-mirror roller substrate, and combines unique grinding and polishing technology to develop ultra-mirror roller coating with high surface finish, good wear resistance and long-lasting durability. Floor.

Coating characteristics

* The coating structure is uniform and dense, and the porosity is extremely low (<0.3%, as shown in the right figure), which can achieve super-mirror effect. *High-precision grinding machine is used for fine polishing and fine polishing to ensure the straightness, out-of-roundness and coaxiality of the super-mirror roller is <0.002mm, and the surface roughness Ra≤0.008μm (the finish is up to 14 grades).

*The coating has strong bonding strength and microhardness of 1000-1200HV0.3. The wear resistance of the roll surface is good and durable.

Comparison of different types of coating properties.

Mirror roller requirements
As a kind of processing equipment, mirror roller naturally has strict requirements on the production of this product. If the quality of the mirror roll itself is not up to standard, then the processing and production of other products will bring a chain of adverse reactions. The scope of use of mirror rollers in Chongqing is also very extensive, involving many manufacturing industries such as printing and dyeing industry, leather industry and plastics. As a processing part, the contact with the processed product is the appearance. Therefore, after the production of the Chongqing mirror roll, the appearance requirements of the Chongqing mirror roll will be checked. Next, we will work together on this aspect. To understanding.

1) Packaging The packaging is neat and complete. It is made of pearl cotton, bubble film and other packaging materials. The thickness of the packaging should not be less than 15mm and it should be protected.
2) Electroplating solution There is no serious plating solution residue in the roller body and the end cap inner cavity, and the plating solution
3) End cap
1. The surface is clean and free of rust and oil;
2, the surface is flat, no defects such as depressions, protrusions;
3. The outer round surface of the end cover, the chamfered corner, and the rounded corners must be trimmed, so as not to be scratched;
4. There is no residual chrome layer on the surface of the end cap, chamfered corner and transition fillet.