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Dryer heads

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Image
Published: 01 January 2002
Fig. 14 Both sides of a journal-to-head failure in a cast iron paper-roll dryer. (a) Bottom of failed dryer. (b) The failed bolted-on head More
Image
Published: 30 August 2021
Fig. 118 Both sides of a journal-to-head failure in a cast iron paper-roll dryer. (a) Bottom of failed dryer. (b) Failed bolted-on head More
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
... of the dryers and in a failure analysis investigation to understand a cracking problem that developed. The typical components of a Yankee dryer consist of a cast iron shell, two cast iron concave heads, and a large cast iron internal center stay attached to journals. The heads are attached to the shell...
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
... , is summarized here on the use of FEA in the original design of the dryers and in a failure analysis investigation to understand a cracking problem that developed. The typical components of a Yankee dryer consist of a cast iron shell, two cast iron concave heads, and a large cast iron internal center stay...
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 Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005743
EISBN: 978-1-62708-171-9
..., suction roll, center press rolls, yankee dryer rolls, calendar rolls, doctor/scalping blades, and cutting equipment. paper machine components paper manufacturing plasma spraying pulping thermal spray coating tungsten carbide PAPER IS AN INTEGRAL PART of our daily lives, with applications...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003015
EISBN: 978-1-62708-200-6
... voids or laminations, which are often unacceptable. A dryer can be used to remove moisture and some volatiles. If the requirement is severe, a refrigerated dryer or a desiccant dryer can be used. These are generally incorporated in the supply hopper of the extruder to avoid extra handling. A vent...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001818
EISBN: 978-1-62708-180-1
... Burned or overheated Collapsed inward Combination explosion Cracked Torn assunders (rupture) Leakage Other Accidents Injuries Deaths 1981 Shell 5 18 25 36 … 12 21 … 6 21 57 26 23 3 94 19 3 Head 1 7 5 9 … 3 1 … 6 2 12 7 1 … 23 … … Attachments 7...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003053
EISBN: 978-1-62708-200-6
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006517
EISBN: 978-1-62708-207-5
... with cold water; separate parts and medium. Transfer parts to burnishing compartment; add burnishing compound and medium cover load with water at 70 °C (160 °F) and rotate drum for 1 h; separate parts and medium, and rinse parts in hot water and then in cold water; spin dry in a centrifugal hot-air dryer...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006812
EISBN: 978-1-62708-329-4
... explosion Cracked Torn assunders (rupture) Leakage Other Accidents Injuries Deaths 1981 Shell 5 18 25 36 … 12 21 … 6 21 57 26 23 3 94 19 3 Head 1 7 5 9 … 3 1 … 6 2 12 7 1 … 23 … … Attachments 7 5 … 4 … 7 2 … … 2 7 5 1...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001279
EISBN: 978-1-62708-170-2
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005858
EISBN: 978-1-62708-167-2
... appliance Electric field strength, V/m Stereo receiver 180 Iron 120 Refrigerator 120 Mixer 100 Toaster 80 Hair dryer 80 Color television 60 Coffee machine 60 Vacuum cleaner 50 Electric oven 8 Light bulb 5 Recommended limit value, V/m 5000 at 50 Hz, 4170...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003052
EISBN: 978-1-62708-200-6
... oxide, iron oxide derived from thermal hydrolysis of ferric chloride High initial permeability High saturation flux density Wide band/pulse, transformers Power transformers, magnetic recording heads  Microwave   Y 3 Fe 5 O 12 Coprecipitation or milling of pure oxides Narrow line widths...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003108
EISBN: 978-1-62708-199-3
...) … 0.08 max … Ferritic; annealed Pressure-containing parts for use at elevated temperatures ASTM A 476; SAE AMS 5316C 80-60-03 F34100 3.00 min (c) 3.0 max … 0.08 max 0.05 max As-cast Paper mill dryer rolls, at temperatures up to 230 °C (450 °F) ASTM A 536 60-40-18 (d) F32800...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001817
EISBN: 978-1-62708-180-1
... leading to a natural-gas dryer that failed from hydrogen sulfide corrosion. (a) Arrangement of piping showing point of leakage in the tee fitting. (b) Inner surface of the tee fitting showing corrosion deposit and area of complete penetration through the tube wall. (c) Positions of layers of corrosion...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001308
EISBN: 978-1-62708-170-2
... or 1500 lb of 3-mm or 1 8 -in. steel balls); cover load with water (71 °C or 160 °F) and rotate drum for 1 h; separate parts and medium, and rinse parts in hot water and then in cold water; spin dry in a centrifugal hot-air dryer. (c) Single-compartment drum, 1.5 m (5 ft) long, 1.2 m (4 ft...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005249
EISBN: 978-1-62708-187-0
.... Changes in variables to decrease set time also serve to decrease working time. Strip patterns Dry in standard-type dryers at temperatures from 175 to 260 °C (350 to 500 °F) for 8 to 16 h, depending on mold size. Foam plaster is very insulating, and thermal gradients can set up dimensional change...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006864
EISBN: 978-1-62708-395-9
... of areas A, B, and C Processing Details and Parameters Prior to extrusion, materials should be dried of both surface and internal moisture using a heated oven, often under vacuum. Common drying methods include hot air dryers, desiccant dryers, and vacuum dryers. Drying is imperative...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003508
EISBN: 978-1-62708-180-1
..., and that they were reduced 17% when specimens having quality of ASTM E 155 level 8 were tested ( Ref 10 ). Example 1: Cracking in a Gray-Iron Cylinder Head Caused by Microporosity A cracked cylinder head was removed from an engine after approximately 16,000 km (10,000 miles) of service. This cylinder head...