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Seeking excellence with polarized forming fabrics
In 2016, Valmet introduced a new generation of forming fabrics with a polarized structure. Customer experiences have shown that these polarized forming fabrics have the potential to revolutionize water removal in the papermaking process.
Insights ● Customer story
Sky-high efficiency at Helen with Valmet’s heat recovery and pump technology
At Helen’s Vuosaari bioenergy heating plant, Valmet’s solution combines flue gas condensation and combustion air humidification with heat pump technology, driving the overall plant efficiency beyond 120 percent and the stack temperature to 11°C.
Insights ● Article
Avoid the wrinkles and web breaks that result from poor splicing
Splicing offers little reward for a job well done, but big penalties to the bottom line for poor quality workmanship such as when customers return shipments.
Insights ● Article
Avoiding roll defects at the winder - causes and solutions
Most roll structural defects are caused by poor nip or tension. These tips will help operators avoid starring, soft starts, corrugations and crepe wrinkles.
Insights ● ArticleValmet tissue machine roll covers achieve significant benefits
Valmet’s new polyurethane cover materials extend running periods and reduce maintenance and energy costs on tissue machines.
Insights ● Article
Guide to dryer section performance, key operating parameters
Here are some notes regarding key operation parameters of the dryer section, starting with the three zones related to effective drying rate.
Insights ● Article
Helpful tips for size pressing: properties, load, vibration…
Sheet properties when using size include - increased internal, surface, tensile strength, stiffness and roughness; decreased porosity, opacity and whiteness.
Insights ● Article
Increasing felt tension overcomes dryer limitation, a case study
This case study involves a paperboard mill suffering from drying limitations. The mill had added spoiler bars but had no room for extra dryer cans. The mill undertook a rebuild to increase felt tension, thus allowing a subsequent machine speedup.
Insights ● Article
Measuring fourdrinier table stock activity helps formation
On fourdrinier forming sections, stock activity on the table is necessary to improve sheet formation and drainage rate. Too much or too little turbulence causes poor formation. Forming table activity can be observed with the use of a high frequency strobe light.
Insights ● Article
Valmet Breast Roll Shaker 120 enhances board and paper properties
Valmet Breast Roll Shaker 120 improves formation properties such as: sheet strength, surface smoothness, printability and furnish absorption. Its simplified design has a small footprint and it's designed for easy maintenance.
Insights ● Article
