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Polyoxymethylene (POM), also known as acetal, [4] polyacetal, and polyformaldehyde, is an engineering thermoplastic used in precision parts requiring high stiffness, low friction, and excellent dimensional stability. Short-chained POM (chain length between 8 and 100 repeating units) is also better known as paraformaldehyde (PFA).
Pulp is refined and mixed in water with other additives to make a pulp slurry. The head-box of the paper machine called Fourdrinier machine distributes the slurry onto a moving continuous screen, water drains from the slurry by gravity or under vacuum, the wet paper sheet goes through presses and dries, and finally rolls into large rolls. The ...
A paper machine (or paper-making machine) is an industrial machine which is used in the pulp and paper industry to create paper in large quantities at high speed. Modern paper-making machines are based on the principles of the Fourdrinier Machine, which uses a moving woven mesh to create a continuous paper web by filtering out the fibres held ...
1896 Beloit Iron Works builds a new foundry, machine shops and offices on the-west side of Rock River near the original site of the Merrill plant. 1897 Shipped first off shore paper machine to Japan. 1900 Shipped two paper machines to China. 1900 Beloit builds cylinder machine to operate at 75 FPM and fourdrinier machines operating 400 to 500 FPM.
A plastic extrusion machine extrudes plastic in a continuous profile. The main machine is usually called the host, and its accompanying equipment are called the plastic auxiliary equipment. Plastic extruders can make plastic film/wrapping, packing tape, corrugated sheets, plastic lumber, pipes, tubes, insulated wire, monofilament and nets.
Emblem that appears on Klutz books. Klutz is a publishing company started in Palo Alto, California in 1977. It was acquired by Nelvana in April 2000, [1] [2] and became a subsidiary of Scholastic Inc. in 2002.
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Model of Louis-Nicholas Robert's continuous paper making machine at Frogmore Paper Mill. Following Robert's successful model, built in 1798, Saint-Léger Didot insisted that Robert apply for a patent. Prior to 1798, paper was made one sheet at a time, by dipping a rectangular frame or mould with a screen bottom into a vat of pulp.