Doctor blades are used to clean rolls and remove stock accumulations, water, pitch, and filler buildup. Since paper, tissue, chemical, food, beverage, corrugating, construction, metals, textiles and nonwovens, it is important to make sure each doctor blade angle is set appropriately for the job to be accomplished.
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Written by Vicki Hunsberger
on August 12, 2014.
Processing strip metal in continuous form is full of challenges. The strip is conveyed over and through numerous rolls, many of which contact the strip and have a direct effect on quality. Adding roll cleaning systems has proven to help maximum run rate, yield and improve product quality in these processing lines.
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Written by Jerry Vandoros
on July 15, 2014.
Pulling a sharp doctor blade from a doctor blade holder with compacted fibers, glue, and wood pitch can be a safety risk, especially without the proper tools.
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Written by Vicki Hunsberger
on June 17, 2014.
Corporate sustainability statements often emphasize water reduction as a goal associated with minimizing a company’s environmental footprint and impact on the community. Being a “good neighbor” by optimizing the use of water and reducing water costs are the two most obvious benefits.
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Written by Dave McGowan
on May 06, 2014.
Blind drilled, grooved, and suction drilled rolls are commonly used on presses in the papermaking process. The open areas in these rolls are designed to accept water from the fabric. It is important all the water in these rolls be evacuated before the nip to prevent re-wetting the sheet and to ensure optimum press nip performance. In some cases these rolls rely solely on centrifugal force to evacuate water, but this is often not sufficient, especially when the fabric becomes filled and cannot accept as much water.
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Written by Jerry Vandoros
on April 08, 2014.