ViewRolls
ViewRolls Communicating profile data is usually performed using 2D plots in Excel. I wanted to use a stronger visual approach and to superimpose the profiles onto pictures of the rolls…
Calender Covers
Calender Covers One of the last steps in making a paper sheet is to calender it using very hard rolls to obtain glossier surfaces and to even out nonuniformities. I…
NipCalc
NipCalc NipCalc is a nonlinear thermoviscoelastic finite element code that predicts roll cover stress and temperature distributions for paper making conditions. A paper sheet rides on a press felt and…
CrownCalc
CrownCalc Paper mill rolls rarely have the proper shapes needed to produce uniform loading profiles. For a given set of loads, there is one set of crown shapes that produce…
MultiCrown
MultiCrown The loaded rollers that press water out of the paper sheet during paper making can be arranged in clusters at various angles, such as the 4-roll press shown to…
Rezolve
Rezolve We built a simulation model for paper machines that used 400+ input variables. Starting from the most rewarding tuning parameters, we built a virtual control panel that empowered field…
SMARTRoll
SMARTRoll Over two decades ago, I invented, developed, and field tested the world's first Smart Roll for the paper industry. This system measures the pressure profile all the way across…
NipProfiler
NipProfiler Non-uniform loading profiles cause non-uniform sheet dewatering, premature wear of roll covers and press felts, higher drying costs, and sometimes failures and premature machine shutdowns. Before the NipProfiler, papermakers…