Corrugated roller
INTRODUCTION OF TUNGSTEN CARBIDE
Corrugating roll, as the most important part of corrugated cardboard production line, whose abrasion resistance and service life is the main technical index for measuring quality and economical efficiency,directly influences the economic benefits of manufacturer for corrugated cardboard . As low profit generation approaches, control on producing cost matters manufacturers' competitiveness and survival development ability.
Merits of Tungsten Carbide corrugating roll
The coating is firmly bonded to the substrate, which can ensure that the coating can be used for a long time without falling off;
The coating has high hardness, the wear resistance increases exponentially, and the service life is extended linearly;
The coating thickness is uniform and controllable, that is, the accuracy of the corrugated wheel can be guaranteed;
After coating treatment, the surface roughness can reach Ra0.4~0.6 through a special polishing process, which can fully meet the production needs of high-speed machines;
Combined with the corrugated design of UV and UVV types, it can effectively improve the hardness of the cardboard, reduce the amount of paste and the waste of core paper;
The corrugated type will never wear out during use, and the paper usage rate can be guaranteed for a long time;
Since the corrugated roller is put into use, the cardboard produced is maintained at a certain thickness, the printing is always smooth, and the quality of the cardboard and carton is stably controlled;
The coating is removed by a special method, and the wheel blank can be reused;
The increase in service life reduces the number of replacements, which also saves labor and material expenses.
The coating has high hardness, the wear resistance increases exponentially, and the service life is extended linearly;
The coating thickness is uniform and controllable, that is, the accuracy of the corrugated wheel can be guaranteed;
After coating treatment, the surface roughness can reach Ra0.4~0.6 through a special polishing process, which can fully meet the production needs of high-speed machines;
Combined with the corrugated design of UV and UVV types, it can effectively improve the hardness of the cardboard, reduce the amount of paste and the waste of core paper;
The corrugated type will never wear out during use, and the paper usage rate can be guaranteed for a long time;
Since the corrugated roller is put into use, the cardboard produced is maintained at a certain thickness, the printing is always smooth, and the quality of the cardboard and carton is stably controlled;
The coating is removed by a special method, and the wheel blank can be reused;
The increase in service life reduces the number of replacements, which also saves labor and material expenses.
Comparison between tungsten carbide corrugating rolls & hard chrome corrugating rolls
Comparison on flute type and take up ratio
For weak abrasion resistance of hard chrome coating, the original height of its flute will be designed more higher, which accordingly increased its take up ratio. On the contrary, flute height of tungsten carbide roll could be designed more lower for its high hardness and abrasion resistance so as to decrease take up ratio and accordingly save medium paper.
For ensuring its service life, the tip of flute of hard chrome rolls usually will be designed more blunt, so its' take up ratio accordingly increased. On the contrary, the tip of flute of tungsten carbide rolls could be designed more sharp so as to save wastage of paste and medium paper without considering its abrasion causing reduction of compressive strength and quality of cardboard.
For ensuring its service life, the tip of flute of hard chrome rolls usually will be designed more blunt, so its' take up ratio accordingly increased. On the contrary, the tip of flute of tungsten carbide rolls could be designed more sharp so as to save wastage of paste and medium paper without considering its abrasion causing reduction of compressive strength and quality of cardboard.
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