A new face drilling rig for narrow tunnels and ... - Advanced Mining

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Issue 04 | 2010 Abtrag in mm³ 45 40 35 30 25 20 15 10 5 0 TRANSFER OF TECHNOLOGY 10,22 11,49 14,37 20,38 37,33 20,12 1 2 3 4 5 6 Werkstoff Pic. 11: Cross-section polish after inspection according to ASTM G65-04 (left: material 2, right material 5) The highest material removal is achieved in the modified version of the friction wheel test with a steel wheel, picture 12. Due to the fact that the abrasive goods cannot be pressed into the surface, which happens in case of the gummed wheel, higher forces occur in the contact gap between sample and the steel wheel. This causes on one hand a higher application of energy into the coating layer, along with a higher damage potential, on the other hand it leads to a grinding of the abrasive good. The consequence is those considerably smaller particles contribute to the damage, and can overcome the protection of the smaller line pitch in the friction gear test with rubber wheel. In this strain, carbide sizes of material 5 are of advantage. Pic. 10: Results ASTM G65-04 Occasionally these stick out highly, so that the steel wheel runs on a carbide layer and the fine abrasive particles bypass the FTC through the gap between wheel and matrix, picture 13. The percussion wheel test, which was adapted to the tribological system of hammer mills, shows clear advantages with the spherical FTC, picture 14. The high brittleness of the monocrystalline TC of the material 6 leads to a high fragmentation of carbides due to the hammering strain, picture 15. Despite the demolition of hard phases, the spherical FTC offers a higher wear protection than the broken ones. The reason is partly the higher ductility of the www.advanced-mining.com 38
Abtrag in mm³ 18 16 14 12 10 8 6 4 2 0 Issue 04 | 2010 Pic. 12: Results of steel wheel test Abtrag in mm³ 140 120 100 80 60 40 20 0 5,99 7,04 4,12 4,06 5,44 15,78 1 2 3 4 5 6 Werkstoff TRANSFER OF TECHNOLOGY 86,92 101,92 90,52 119,97 74,74 126,01 1 2 3 4 5 6 Werkstoff Pic. 13: Cross-section polish after steel wheel test (left: material 5, right: material 4) Pic. 14: Results hammer wheel test www.advanced-mining.com 39
Page 1 and 2: www.advanced-mining.com 04 2010 ADV
Page 3 and 4: EDUCATION NEWS & REPORTS alljig ®
Page 5 and 6: Pic. 1: Multi-phase system of the s
Page 7 and 8: HYDROMETER ANALYSIS The hydrometer
Page 9 and 10: EDUCATION Pic. 7: Interpretation of
Page 11 and 12: Hereby the dry solids md are determ
Page 13 and 14: Issue 04 | 2010 TRANSFER OF TECHNOL
Page 15 and 16: Basics of Market Review and Require
Page 17 and 18: • Layout an Operation Time: Based
Page 19 and 20: Pic. 2: Technical basic parameters
Page 21 and 22: Issue 04 | 2010 Pic. 5: 3 D visuali
Page 23 and 24: Pic. 6: Treatment diagram of proces
Page 25 and 26: [5] Kirschbaum, Martin (1991):Grund
Page 29 and 30: Going underground Experts have been
Page 31 and 32: The future All work was successfull
Page 33 and 34: Pic. 2: Schematic tribological syst
Page 35 and 36: Experimental Study In highly abrasi
Page 37: Results The results of the test acc
Page 41 and 42: Bibliography [1] Uetz, H.: Abrasion
Page 45 and 46: the classical mechanics through a f
Page 47 and 48: Hereby ζ is the coefficient of vel
Page 49 and 50: Characteristic data like active cur
Page 51 and 52: The calculation method delivers the
Page 53 and 54: The values listed in table 5 are va
Page 55 and 56: Like in the coefficient of velocity
Page 57 and 58: Prof. Dr.-Ing. Dipl.-Wi.-Ing. W. A.
Page 59 and 60: Global ressources, reserves and pro
Page 61 and 62: Terms of Trade The three biggest pr
Page 63 and 64: The single wattmeter method (single
Page 65 and 66: Results of the measurement Fig. 12
Page 67 and 68: Bibliography [1] INTERNATIONAL ENER
Page 69 and 70: Sound power P Sound power P is the
Page 71 and 72: Table 1: Speed of sound of differen
Page 73 and 74: Definition of the most important so
Page 75 and 76: Now, it is enabled the sound power
Page 77 and 78: Table 6: Example of admissible soun
Page 79 and 80: Table 7: Example of admissible soun
Page 81 and 82: In the sound spectrum of constructi
Page 83 and 84: Table 8: Time change of the third-o
Page 85 and 86: • Surfaces not directly into cont
Page 87 and 88: Table 11: Slewing crane - Sum sound
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Issue 04 | 2010 Fig. 24: Comparison
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Fig. 32: Low-noise fan Issue 04 | 2
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• Sound protection by terrain top
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Issue 04 | 2010 Zielitz potash mine
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HBR 201 electrohydraulic drilling m
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a Hütte type HBR 201 universal dri
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Introduction The Vertimill® is a u
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while tumbling. In a Vertimill® th
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The Develeopment of Vertimill US$0.
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Issue 04 | 2010 NEWS & REPORTS THE
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Moreover, the impact of the crusher
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at l a s Co p C o Un d e r g ro U n
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at l a s Co p C o Un d e r g ro U n
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BaCkers Ma s C h i n e n B a U gM B
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CONTITECH Issue 04 | 2010 NEWS & RE
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not limited by the size of gearbox
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haver & BoeCker w i r e weaving a n
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The consistently positive reactions
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Issue 04 | 2010 NEWS & REPORTS Spea
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partners up to tailor made special
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Kiesel: Hitachi wheel loader ZW550
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Three heavy chain dredgers, a big w
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concrete crusher, demolition and so
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across an area of 125,000 square me
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Following the live demonstrations,
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Also new in the 390D L‘s implemen
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Specification Comparison 390d L / 3
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The tunnel contractor consortium Co
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2011 THE AMS-EVENT CALENDER Issue 0
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Issue 04 | 2010 EVENTS STEINExPO 20
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Issue 04 | 2010 EVENTS FOR MORE INF
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Rohstoffversorgungstechnik Rohstoff
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Issue 04 | 2010 FAchtAgUng Kies, Sa
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PUBLISHING COMPANY AMS Online GmbH
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