Type of corrugafion | A | C | BC | BC2 | B | D | DE | E | F |
Shape of corrugafion | UV | UV | UV | UV | UV | UV | UV | UV | UV |
Quantity of corrugafion | 34±2 | 38±2 40±2 | 44±2 | 48±2 | 50±2 | 66±6 | 75±3 | 96±4 | 124±10 |
Hight of corrugafion | 4.6-4.9 | 3.6-3.9 | 3.0-3.4 | 2.8-3.2 | 2.6-2.9 | 1.9-2.1 | 1.5-1.9 | 1.1-1.8 | 0.7-0.8 |
Rate of corrugafion | 1.51-1.59 | 1.44-1.51 | 1.42-1.49 | 1.40-1.45 | 1.36-1.42 | 1.40-1.41 | 1.35-1.4 | 1.29-1.39 | 1.22-1.26 |
Merits of Tungsten Carbide corrugating roll
Δ Strong combination between coating and matrix ensuring long service life of coating without any peeling.
Δ With higher hardness of coating, abrasion reesistance will increase manyfold and service life will be prolonged linearly.
Δ Thickness of coating could be even and accurately controlled,ensruing precision rolls.
Δ Sruface roughness of coating will reach to Ra0.4-0.6after special fine polishing,pretty suitable for high-speed corrugated cardboard making machine .
Δ Matching with flute designs of UV and UVV type, increase efficently hardness of cardboard and deduct wastage of paste and medium paper.
Δ The oretically,flutes in service will be never worn and take up ratio will be never changed.
Δ By using tungsten carbide corrugating rolls,cardboard will be maintained at certain thiceness and printed always flat for stable quality of cardboard and carton.
Δ Used coating could be removed by special process and the rolls could te refurbished for reuse.
Δ Improvement in service life deducts frequencies of changing,saving expenditure of manpower and material resources.
Comparison on Service life of corrugating rolls
Δ Service life of hard chrome corrugating rolls is usually during 6milion to 8 milion;But fo tungsten carbide corrugating rolls,its service life could be reach to at least more than 30 milion,which dedects frequencies of changing and saves expenditure of manpwer and material resources.