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capstans

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Published: 30 September 2015
Fig. 22 Helical gear and spur pinion. Capstan Atlantic, courtesy of MPIF More
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003281
EISBN: 978-1-62708-176-4
... Abstract This article describes the techniques for measuring friction, namely, inclined-plane method; friction test methods using weights and pulleys; friction tests of shafts and capstans; other types of friction tests, including standards; microscale friction tests; and friction testing under...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004008
EISBN: 978-1-62708-185-6
.... The leading end of the rod or wire, after being pointed, is then inserted through the drawing die and seized by a gripper attached to a powered cylindrical block or capstan. On so-called dry machines, the die is mounted in an adapter within a box. This die box contains grease, dry soap, oil, or other...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005138
EISBN: 978-1-62708-186-3
... with the four axes in the same plane and at right angles to each other, as shown in Fig. 1(a) and (b) . In operation, a coil of wire is supported in a pay-off reel; the wire is pulled through the rolls by a capstan and then recoiled. A drawbench can be used for pulling short lengths (up to 30 m, or 100 ft...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003178
EISBN: 978-1-62708-199-3
... in high-speed drawing; if this is not done, the lubricant may fail, and the properties of the wire may suffer. Dry Drawing In dry drawing, the lubricant is chosen for its tribological attributes, and the wire is cooled while it resides on the internally cooled capstans of single-hole bull blocks...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0009006
EISBN: 978-1-62708-185-6
... to the flow (yield) strength (σ 0 ) of the emerging wire. Otherwise it would simply break at the die exit (or at the point where the drawn wire contacts the capstan). The limiting single-pass reduction, or the reduction at which σ d = σ 0 is a function of die design, friction, and the work-hardening...
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005734
EISBN: 978-1-62708-171-9
... Process (a) Applications Ceramics (oxides) Cr 2 O 3 , Al 2 O 3 , TiO 2 (mixtures thereof) PS, OFR, DG Mechanical seals, pump sleeves, wire-drawing blocks and capstans, textile rolls and guides Cermet (carbide) composites WC/Co, WC/Co/Cr, WC/Ni, WC/NiCr, WC/Cr 3 C 2 /Ni/NiCr, WC/NiCrSiBC...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006361
EISBN: 978-1-62708-192-4
... should simulate the system of interest. Figure 3(b) is classified as a “capstan test” because its principle is employed in capstans used to hold lines under tension. This friction test has utility when the system under study involves a belt, cable, rope, or web sliding over a roll or cylindrical...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006423
EISBN: 978-1-62708-192-4
..., which accumulates the product. Finer wire requires many passes through successively smaller dies, so the wire encounters many of these drums, or capstans, before it is finally accumulated on the last drum ( Fig. 9 ). In the process, the reduction ratio from initial to final wire diameter can be as high...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003746
EISBN: 978-1-62708-177-1
... the sample, usually with a short stroke. A variation of this technique employs a 30 m (100 ft) length of wire that is fed from a capstan across the workpiece and back onto the capstan. The direction of the capstan is reversed at the end of each stroke. The capstan is further shuttled back and forth...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003061
EISBN: 978-1-62708-200-6
... between the sliding pairs. The sliding pairs may or may not be the same materials. Examples of rubbing wear would be rotating shaft seals for automotive water pumps and wire drawing capstans. Parameters Affecting Wear of Ceramics Hardness In wear applications, one usually thinks of hardness...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001107
EISBN: 978-1-62708-162-7
..., toughness Capstans and draw blocks, pulleys and sheaves, guides, rolls, dies Pulp and paper High-speed paper manufacturing Abrasion and corrosion resistance Slitting and sizing knives, stock-preparation equipment Machine tool and process tooling Machine components and process tooling Hardness...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003133
EISBN: 978-1-62708-199-3
... by friction between the wire-and-draw capstan and by successive reductions through progressively smaller dies. In turn, use of lubricants permitted wire to be drawn at faster speeds. The prime development during the 1920s was the introduction of drawing dies made of tungsten carbide. High hardness...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006022
EISBN: 978-1-62708-175-7
... enable quiet gear performance, decreasing noise, vibration, and harshness. Fig. 22 Helical gear and spur pinion. Capstan Atlantic, courtesy of MPIF Four metal injection molded (MIM) parts (a blank discharge check, stop discharge check valve, valve discharge check, and CRV spring seat...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001066
EISBN: 978-1-62708-162-7
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001110
EISBN: 978-1-62708-162-7
... a coil than it is to heat treat a long, straight rod. From 25 mm (1 in.) to approximately 8 mm ( 5 16 in.) the rod is drawn on single-capstan bull-blocks. Below this diameter, multiple die machines are used. Final wire diameters can range from 0.05 to 2.8 mm (0.002 to 0.11 in.) depending...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003259
EISBN: 978-1-62708-176-4
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003179
EISBN: 978-1-62708-199-3
...-purpose through the rolls by a capstan and then recoiled. automatic spring coilers. Inorganic fillers include solids such as white A drawbench can be used to pull short lengths (up to 30 m, or 100 ft) through the rolls. The The spring-coiling machine is equipped with a lead, talc, graphite, and molybdenum...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006079
EISBN: 978-1-62708-175-7
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003276
EISBN: 978-1-62708-176-4