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Papermaking

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Published: 01 August 2013
Fig. 4 Center press roll used in papermaking machines. These rolls are coated with nonstick ceramic coatings for plasma spraying. More
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005743
EISBN: 978-1-62708-171-9
... modern papermaking machines are based on variations of the Fourdrinier machine. The article describes four operational sections of the machine: forming, press, drying, and calendar. It provides an overview of the machine components where thermal spray coatings are used, namely, digesters, blow tanks...
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005746
EISBN: 978-1-62708-171-9
... Coatings for Wear and Corrosion Protection T. Bause, F.-W. Bach, K. Möhwald, and M. Erne International Thermal Spray Conference and Exposition 2008 Thermal Spray Coatings in Printing and Papermaking H. Jungklaus International Thermal Spray Conference and Exposition 2008 Insulated Piston Fire...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003526
EISBN: 978-1-62708-180-1
..., cylindrical, rotating, pressurized, high-temperature, cast iron pressure vessel that has evolved in design since the early 1900s. A wet sheet of paper is placed on the rotating face of the dryer, which is located toward the back end of a crepe papermaking machine. As the dryer rotates, contact with the high...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004190
EISBN: 978-1-62708-184-9
... In the kraft process, hot alkaline (sodium sulfide and sodium hydroxide) liquid is used to dissolve the lignin from wood chips and to separate individual wood fibers for use in papermaking. Wood chips are exposed to cooking liquors for several hours at elevated temperature and pressure in a process called...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006773
EISBN: 978-1-62708-295-2
...-papermaking machine. As the dryer rotates, contact with the high-temperature face removes considerable moisture from the paper by the time it is removed from the dryer. The drying process only occurs while the paper is in contact with the high-temperature face during approximately one dryer rotation...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006062
EISBN: 978-1-62708-172-6
..., washups, and so on; not much washing is done because of the unit process. Exterior: Vents and exhausts can produce a moderate increase in mill environment corrosiveness by contributing sulfur compounds and low pH conditions. Papermaking Fibers are formed into continuous sheet; coloring...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005288
EISBN: 978-1-62708-187-0
... was developed in the 1950s for vertical continuous casting of bronze and brass rod approximately 16 to 19 mm (0.63 to 0.75 in.) in diameter as feedstock for the manufacture of fine wire mesh used for papermaking machines ( Ref 1 , 18 ). The unit consisted of an integrated continuous casting plant in which...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005257
EISBN: 978-1-62708-187-0
...-speed steel rolls for steel mills and the food-processing, papermaking, and printing industries; iron and steel cylinder liners, gray iron piston rings, gray iron brake drums, and alloy and superalloy seal rings and valve seats for the auto industry; heat-resistant steel cracking tubes for petroleum...
Book Chapter

By Paul J. Walsh
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0009241
EISBN: 978-1-62708-195-5
.... The desire for faster processing in the papermaking and film casting industry has encouraged growth of carbon composite rollers, which spin faster and have less deflection than steel rollers. Roller diameters up to one meter are now routinely fabricated with carbon fibers on automated filament winding...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003134
EISBN: 978-1-62708-199-3
... and C83800 are used for plumbing goods, flanges, feed pumps, meter casings and parts, general household and machinery hardware and fixtures, papermaking machinery, hydraulic and steam valves, valve disks and seats, impellers, injectors, memorial markers, plaques, statuary, and similar products. Alloys...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.9781627082952
EISBN: 978-1-62708-295-2
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003061
EISBN: 978-1-62708-200-6
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006431
EISBN: 978-1-62708-192-4
... components Silicon carbide in sliding bearings that can operate in caustic and acid process fluids, sealing rings for high-speed turbo/gas compressors and corrosive or other chemical attack environments, papermaking, chemical processing and oil and gas production, hard-faced seal components, ballistic...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001057
EISBN: 978-1-62708-162-7
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006349
EISBN: 978-1-62708-179-5
... to all concentrations of sulfurous acid at temperatures up to 80 °C (175 °F), to sulfite liquors used in the papermaking industry, to hypochlorite bleaching liquors at room temperature, to cold aluminum sulfate in concentrations up to 5%, and to some salts that hydrolyze to give acid solutions...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003053
EISBN: 978-1-62708-200-6
... uniaxial pressing, slip casting, tape casting, extrusion, injection molding, and papermaking, as well as some newer methods. Although each of these techniques has different powder requirements, they share one goal: uniform density is often compromised by the specific requirements of a particular method...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001068
EISBN: 978-1-62708-162-7
... and machinery hardware and fixtures, papermaking machinery, hydraulic and steam valves, valve disks and seats, impellers, injectors, memorial markers, plaques, statuary, and similar products. Alloys C84400 and C84800 are higher in lead and zinc and lower in copper and tin than C83600 and C83800...
Book Chapter

Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005287
EISBN: 978-1-62708-187-0
... detail. Wheels, wheel hubs, motor rotors, and papermaking and printing rolls are examples of aluminum parts produced by centrifugal casting. Aluminum alloys suitable for permanent mold, sand, or plaster casting can be cast centrifugally. Squeeze Casting Although a number of process...
Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002151
EISBN: 978-1-62708-188-7
... papermaker's ream. In general, the heavier the weight of the backing, the stronger and more expensive it is. In addition, the heavier the weight of the backing, the more rigid and less flexible it is. Heavy, rigid backings that can withstand high grinding pressures are used in coarse-grit rough grinding...