9-72 Figure 9-29 shows a cylindrical riser attached to a casting. Compare the solidificationtimes for each casting section and the riser and determine whether the riser will beeffective.Figure 9-29Т363836DetailsA diagram shows the step-block casting. A cylinder of height "7" and diameter "3" iskept on a platform consisting of 2 steps. The width of the second step of the platformis labeled as "3". The horizontal length of the first step is labeled as "6." Thehorizontal length, width and height of the first step are labeled "6", "8" and "3".

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Answered: 9-72 Figure 9-29 shows a cylindrical…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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: +0 usão العنوان on to A vertical true centrifugal casting process is used to produce bushings that are 250 mm long and 200 mm in outside diameter. If the rotational speed during solidification is 500 rev/min, determine the inside radii at the top and bottom of the bushing if R-2R. Take: -9.81 mis ۲/۱ ostrar
A vertical true centrifugal casting process is used to produce bushings that are 250 mm long and 200 mm in outside diameter. If the rotational speed during solidification is 500 rev/min, determine the inside radii at the top and bottom of the bushing if R-2Rb. Take: 8-9.81 m/s
(9,00 Puanlar) A riser in the shape of a sphere is to be designed for a sand casting mold. The casting is a rectangular plate, with 8- length 50 cm, width = 35 cm, and thickness = 4 cm. If the total solidification time of the casting itself is known to be 7,5 min, determine the diameter of the riser so that it will take 30% longer for the riser to solidify. %3D Riser volume: V3(TD3)/6(D%3Ddiameter) Riser area: A=TD2 Casting volume: V-L-Wt (L-Length, W=width, t-thickness) a) 8,41 cm b) O 7,34 cm c) 6.62 cm 11,46 cm Boş bırak KÖnceki 8/43 Sonraki> Каpat
. A round casting is 0.2 m in diameter and 1 m in length. Another casting of the same metal iselliptical in cross section, with a major-to-minor axis ratio of 2, and has the same length andcross sectional area as the round casting. Both pieces are cast under the same conditions.What is the difference in the solidification times of the two castings?
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a riser in the shape of a sphere is to be designed for a sand casting mold. the casting is a rectangular plate, with length 200mm, width 100mm, and thickness 18mm. if the total solidification time of the casting itself is known to be 3.5 mm, determine the diameter of the riser so that it will take 25% longer for the riser to solidify. assume a value of 2 for ‘n’ m( the exponent in chvorinov’s rule). know the volume and surface area of a sphere.
A riser in the shape of a sphere is to be designed for a sand casting mould at Simon Castings. The casting is a rectangular plate, with length = 400 mm, width = 250 mm, and thickness = 15 mm. If the total solidification time of the casting itself is known to be 7 min, determine the diameter of the riser so that it will take 30% longer for the riser to solidify.
Answer this broadly.
Figure 9-6 9-49 An aluminum alloy plate with dimensions 20 cm x 10 cm × 2 cm needs to be cast with a secondary dendrite arm spacing of 10-2 cm (refer to Figure 9-6). What mold constant B is required (assume n = 2 )? Secondary dendrite arm spacing (cm) - 10-1 10-2 10-3 10 41 0.1 1 Copper Zinc alloys Aluminum alloys 10 100 1,000 10,000 100,000 Solidification time (s)
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what solidification time is required for a casting of 9.5 cm3 and a mold contact area of 10 cm2? The mold constant is 838 s/cm2.

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