Tungsten Carbide Corrugation Machine Parts A Flute Corrugating
Rolls
| Product name | Corrugating rolls, corrugated roller |
| Material | 50CrMo |
| Application | Single facer, corrugator machine |
| Diameter | 200-600mm |
| Width | 1000-2800mm |
| Flute Profile | A, C, B, E, F, G, N, O |
| Heating Treatment | Intermediate frequency quenching treatment |
| Hardness | ≥HRC58 after heating treatment, harden layer 8-12mm |
| Coating | Tungsten carbide, hard chrome 0.06-0.08mm |
| Corrugator line | BHS, Fosber, BW Paper System, Hsieh Hsu, K&H, JS, Fuli,
Wanlian, Taiwan Mingwei, Chinese Mingwei, Meiguang, Dongguang,
Dpack, Xinguang, Xieyang, Shengli, Indian machine, etc. |
Durable from Supersonic Tungsten Carbide Spraying
Tungsten carbide corrugated roller producing technology is
different traditional corrugated roll. Because of the particularity
of tungsten carbide material, the requirement of the base material
hardness is higher, flute profile before tungsten carbide spraying
is more precise, which is needed to match the performance of
tungsten carbide. Spraying technology is the key, which can ensure
the hardness and binding force of tungsten carbide.Most advanced
Praxair JP 8000 HVOF tungsten carbide spraying equipment and
technology is adopted and Praxair 1342 super hard tungsten carbide
powder is used for our corrugating roll. Before tungsten carbide
spraying, we do sand blasting treatment on the surface which make
rough surface to increase adhesion of tungsten carbide powder.
Repeatedly Polished, Smooth As a Mirror
Meijia adopts special polishing crafts, such as the corrugated
rollers use America Praxair 1342VM series super hard tungsten
carbide roller, special customized polishing wheel. With our
company’s fully automatic CNC corrugated roller producing process’s
special polishing machine and our independent grinding polishing
technology R&D, the tungsten carbide roller’ s surface finish
degree can reach Ra<0.6μm, which will improve the accuracy of
the flute profile, and make sure the quality of the corrugated
roller.
Adjust well
1. Inspect the balance of corrugating roll regularly, at least once
a month.
2. Inspect the gap among corrugating roll, glue roll and pressure
roll to avoid abrasion.
3. When installing corrugating rolls, mind the small gap between
corrugating rolls and suction hood which will cause abrasion of
corrugating rolls and aluminum plate from suction hood.
4. The copper knives will loosen with the movement of machine. The
knife in “T” position will scratch the coating on two sides of
grooves. So fix the cooper knives regularly.
5. In the premise of assuring corrugated board quality in real
production, it’s better to use smallest oil/air cylinder pressure
both of corrugating roll and pressure roll.
6. When changing wide width to small width in real production,
reduce oil/air cylinder pressure both of corrugating roll and
pressure roll accordingly to avoid abnormal abrasion caused by
excessive pressure. Especially the direct abrasion between
corrugating rolls and pressure roll in paperless areas will cause
falling off of coatings.
