N Flute Hard Chrome Alloy Steel Corrugating Rolls

Micro N Flute Hard Chrome Alloy Steel Corrugated Roller for Cigarette Packaging

1. Applications of alloy steel corrugating rolls

N flute corrugating rolls are used to make good printability requirement paper boxes, like cigarette, cosmetics, medicine box, etc.

2. Precision Welding Can Be Inseparable

Both ends of the roller body should be heated to release the size of the inner bored hole. After the spindle heads are put in, the roller body and the spindle heads should be held tightly after natural cooling. When everything is ready, a driving fit interface has been formed between the roller body and the spindle heads by means of preheating, welding or bolting. Special care should be taken when welding, because finished corrugated roller body’s temperature will rise constantly when the roller is running, and the roller body also bears pressure of the steam from the inside of the roller body, which will form the so-called “pressure vessel”. In view of this, the roller body and the spindle heads joint must pass the pressure test. When the welding process finished, the work piece shall be put into the furnace for high temperature tempering to reduce stress.

3. Rigorous for Precise Grinding

After heat treatment and the cutting slots, the roller shall be put on high precision automatic CNC grinding machine to do finish grinding. Almost every set of corrugating rolls are needed to be designed and customized separately according to the width, diameter, flute height, corrugated paper GSM, speed and cardboard physical index requirement. The designed flute profile is copied on a costly diamond tool. When grinding wheel and diamond tool touch together, the flute profile is dressed on grinding wheel. By grinding wheel grind each flute several times until the accuracy is within our technical permitted requirement. The Siemens control system play a key role in guarantee the accuracy.

4.Comparison Between Tungsten Carbide Corrugating Roll and Hard Chrome Corrugating Roll

Zhejiang Yonghui Corrugated Roller Co., Ltd. is a professional manufacturer of high-quality corrugated rollers with professional production equipment and strong technical strength.

Since its establishment in 2004, we have been devoted to the design and research and development of high-quality corrugated rollers; We have professional production technology, experienced professional design, independent research and development capabilities, and a qualified after-sales service team; complete production process, fully automatic CNC precision grinders, and use the American JP8000 supersonic tungsten carbide spraying equipment, which is currently the most advanced supersonic spraying equipment in China. Ensure that every design and production can meet the needs of customers and achieve customer value.

All products have been ground with the highest precision CNC grinding machine, with a roundness tolerance of 10 μ M. Adopting nitrogen hardening and medium frequency induction quenching processes, ensuring high hardness and wear resistance of corrugated rollers, and extending their service life. Our company can produce corrugated rollers for all models of single faces.

Main products: tungsten carbide corrugated rollers, wear-resistant hard chrome corrugated rollers, metal anilox rollers, high-precision pressure rollers, glue rollers, doctor rolls and other roller products.