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Headers

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Published: 01 January 1993
Fig. 6 Heat-exchanger assembly with tube-to-header joints brazed in one pass through a furnace Furnace brazing in dry hydrogen Furnace (a) Continuous conveyor Fixture material (b) Type 347 stainless steel Furnace temperature, °C (°F) 1120 ± 5 (2050 ± 10) Brazing More
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Published: 01 January 1997
Fig. 13 Submerged arc welding (SAW) setup for heat-exchanger header. Carbon steel, 0.35% max C (ASTM A 515, grade 70) base metal; carbon steel filler metals. FCAW, flux cored arc welding. Source: Ref 15 Original design Improved design Welding process Manual FCAW Automatic SAW More
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Published: 30 November 2018
Fig. 6 Insulating header above the water-cooled mold. Source: Ref 2 More
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Published: 01 January 1987
Fig. 764 Surface of a catastrophic fracture in an open-header die of AISI W2 tool steel that was case carburized to 0.95% C at the surface, heat treated in the range of 815 to 845 °C (1500 to 1555 °F), and water quenched. This die was used for cold forming and upsetting square heads. Upsetting More
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Published: 01 January 2006
Fig. 12 Severe forming of an austenitic stainless steel aircraft muffler header to produce work hardening that would increase the rigidity and fatigue strength of the part. Dimensions given in inches More
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Published: 01 December 2008
Fig. 6 Insulating header above the water-cooled mold. Source: Ref 2 More
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Published: 01 August 2018
Fig. 3 It is obvious that multiple repairs were performed on this header stub tube before it cracked. Courtesy of A. Antonatos More
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Published: 01 January 2002
Fig. 17 Flange-to-pipe assembly of a carbon steel header, used for handling superheated water, that cracked by fatigue because of notches at welds. (a) Section through butt-welded joint showing crack (arrow A) that originated at toe of weld on inner surface, incomplete weld penetration (arrow More
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Published: 01 January 2002
Fig. 18 Type 347 stainless steel inlet header for fuel-to-air heat exchanger that cracked due to poor welding technique and unfavorable joint design. Dimensions given in inches More
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Published: 01 January 2002
Fig. 28 Header die made from AISI W1 tool steel that failed prematurely in service. (a) The striking face of the carbon tool steel die chipped. The die had been flush quenched through its center hole to harden the working surfaces. (b) Cold etching (10% aqueous nitric acid) of a longitudinal More
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Published: 01 January 2002
Fig. 30 Interligament cracking in a failed secondary superheater outlet header from a boiler. More
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Published: 30 August 2021
Fig. 28 Header die made from AISI W1 tool steel that failed prematurely in service. (a) The striking face of the carbon tool steel die chipped. The die had been flush quenched through its center hole to harden the working surfaces. (b) Cold etching (10% aqueous nitric acid) of a longitudinal More
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Published: 30 August 2021
Fig. 25 Type 347 stainless steel inlet header for fuel-to air heat exchanger that cracked due to poor welding technique and unfavorable joint design. Dimensions given in inches More
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Published: 30 August 2021
Fig. 53 Interligament cracking in a failed secondary superheater outlet header from a boiler More
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004004
EISBN: 978-1-62708-185-6
... the various components of a cold-heading machine and the tools used in the cold heading process. These include headers, transfer headers, bolt makers, nut formers, and parts formers. The article explains the operations required for preparing stock for cold heading, including heat treating, drawing to size...
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Published: 01 January 1993
T-joint (braze ring preplaced internally to provide uniform fillet). (d) Pancake or pie wound coil for heating brass header to permit simultaneous brazing of eight copper tubes to header. (e) External coils for simultaneous production of a number of brazed joints. (f) Formed internal coil to join More
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Published: 01 January 2005
Fig. 6 Setup for simultaneous upsetting and cutoff of continuously fed, heated mill lengths of stock in a semiautomatic header More
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Published: 01 January 2002
Fig. 31 Microstructure, linked voids, and split grain boundaries in the failed outlet header shown in Fig. 30 . 400× More
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Published: 30 August 2021
Fig. 54 Microstructure, linked voids, and split grain boundaries in the failed outlet header shown in Fig. 53 . Original magnification: 400× More
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Published: 01 January 2006
Fig. 45 Accelerated high-temperature sulfidic corrosion in 500 mm (20 in.) diameter pipe of vacuum furnace outlet header due to droplet impingement at high vapor velocities More