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การออกแบบและสร้างเตาอบชุบมีดพร้าด้วยไฟฟ้ า

Dec 27, 2015

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การออกแบบและสร้างเตาอบชุบมีดพร้าด้วยไฟฟ้ า.pdf

  • IE2011_20

    513040089-1

    513041129-0

    4

    .. 2554

  • Project Report No.IE2011_20

    DESIGN AND SIMULATION ELECTRIC HARDENING KILN OF KNIFE

    Ms.Thanyaluck Chotitamvatin ID 513040089-1 Ms.Salisa Ketchumnong ID 513041129-0

    This is the report of fourth year project assignment submitted in partial fulfillment of the requirements for the Degree of Bachelor of Engineering.

    Department of Industrial Engineering Faculty of Engineering, Khon Kaen University.

    2011

  • DESIGN AND SIMULATION ELECTRIC HARDENING KILN OF KNIFE

    513040089-1 513041129-0

    ( )

    ( . )

    ( . )

    10 .. 2555

  • SolidWorks

    ANSYS Workbench

  • 1,000C ANSYS Workbench 14.0

    JIS G4801-77 845-865C (Holding time) 129 1.69 11 2.567 ANSYS Workbench 14.0 907C 11 2.318 (Holding time) 129 907C 1000C Heat flux Heat flux

  • Abstract

    The objective of this project is to design and simulation electric hardening kiln of knife. Heat is provided by the coil, hardening temperature is about 1000C to reduce the time of hardening. Basic design of the kiln and using ANSYS Workbench 14.0 to study feasibility for creating.

    Process of the kiln design start at studied knifes properties, that made from spring steel, JIS G4801-77. Temperature of hardening about 845-865C, holding time is 129 seconds and studied refractorys properties used in the kiln. From the calculating and basic design diameter of heater wire is 1.69 millimeter, electric current is 11 A and power is 2.567 kW, after that used simulation to study the feasibility of constructs the kiln using ANSYS Workbench 14.0. The hardening temperature result is 907C, electric current is 11 A, power is 2.318 kW and holding time is 129 seconds. The results of simulation hardening temperature is 907C but required hardening temperature is 1,000C. So that required temperature should increase the heat flux, that can be enhanced by increasing the size of coil and electric current.

  • 1 1

    1.1 1

    1.2 1

    1.3 1

    1.4 2

    1.5 2

    1.6 3

    2 4

    2.1 4

    2.2 13

    2.3 (Hardening) 17

    2.4 23

    2.5 25

    2.6 ANSYS Workbench 14.0 27

    2.7 31

    2.8 Matlab Simulink 32

    3 33

    3.1 33

  • ()

    3.2 34

    3.3 3 34

    3.4 38

    4 51

    4.1 51

    4.2 ANSYS Workbench 14.0 53

    5 63

    5.1 63

    5.2 67

    5.3 67

    5.4 68

    69

    70

  • 2.1 11

    2.2 18

    2.3 19

    2.4 20

    2.5 TTT 22

    2.6 2 23

    2.7 () 26

    2.8 27

    2.9 ANSYS Workbench 14.0 29

    2.10 ANSYS Workbench 14.0 29

    2.11 30

    2.12 (Transient Thermal) 30

    2.13 31

    3.1 34

    3.2 35

    3.3 3 Solid Works 37

    3.4 38

    3.5 38

    3.6 40

    3.7 40

    3.8 42

    3.9 44

    3.10 47

  • ()

    3.11 49

    3.12 50

    3.13 50

    4.1 52

    4.2 ANSYS Workbench 14.0 53

    4.3 Transient Thermal 54

    4.4 Engineering Data 54

    4.5 55

    4.6 ANSYS Workbench 55

    4.7 Mesh 56

    4.8 Mesh 56

    4.9 57

    4.10 Insert Heat Flux Transient Thermal 57

    4.11 Heat Flux 58

    4.12 Heat Flux 59

    4.13 Convection 60

    4.14 Initial Temperature 60

    4.15 Analysis Setting 61

    4.16 Heat Flux 61

    4.17 Convection 62

    4.18 ANSYS Transient Thermal 62

    5.1 66

  • 1.1 2

    2.1 6

    2.2 7

    2.3 8

    2.4 8

    2.5 (S) 6 (/) C 10

    2.6 11

    2.7 12

    2.8 K 14

    2.9 3 21

    2.10 24

    3.1 ( 35

    5 x 5 )

    3.2 ( 36

    10 x 10 )

    3.3 39

    3.4 42

    4.1 51

    4.2 ANSYS Transient Thermal 60

    5.1 63

    5.2 65

  • 1

    1.1

    1.2 1.2.1 1.2.2 ANSYS Workbench 14.0 1.2.3

    1.3

    ANSYS Workbench 14.0

  • 2

    1.4 1.4.1

    1.4.2 3

    1.4.3

    1.4.4

    ANSYS Workbench 14.0

    1.4.5

    1.4.6

    1.5 1.1

    ()

    .. .. .. .. .. .. .. .. ..

    1 2 3

    3

    4

    ANSYS Workbench

    14.0

    5

    6

  • 3

    1.6 1.6.1 ANSYS Workbench 14.0

    1.6.2

    1.6.3

    1.6.4

  • 2

    2.1 2.1.1 600-1200C

    .. 1884 ,

    (A) (T),

    2.1.2

    ,

    1.) ,

    2-10%

    2.)

    3.)

  • 5

    4.)

    5.) (Element Surface load)

    [1]

    (2.1)

    (W/m2)

    P (W)

    (cm2)

    W/cm2

    1)

    2)

    3)

    2

    220 V

    )

    )

    2

    2.2 [1]

  • 6

    mm (2.2)

    P = (W)

    = (m )

    = ()

    p = (W/ )

    (d)

    [1]

    A (2.3)

    I = (A)

    P = (W)

    R = ()

    2.1 [2]

    Diameter, mm in:

    1.0 - 3.0 0.039 0.118 > 3.0 > 0.118

    C F C F

    KANTHAL A-1 1225-1350 2240-2460 1400 2250

    KANTHAL AF 1225-1350 2240-2460 1400 2550

    KANTHAL D 1100-1200 2010-2190 1300 2370

    ALKROTHAL 1000-1050 1830-1920 1100 2010

    NIKROTHAL 80 Plus 1075-1150 1970-2100 1200 2190

    NIKROTHAL 60 Plus 1000-1075 1830-1970 1150 2100

    NIKROTHAL 40 Plus 1000-1050 1830-1920 1100 2010

    NIKROTHAL 20 Plus 975-1025 1790-1880 1050 1920

  • 7

    2.1.3

    1.)

    2.)

    3.)

    1. (Refractory Brick)

    1.1 (Fusion Point)

    1.2 (Creep Under Compression)

    1.3

    (Spelling Resistance)

    1.4 (Slag Resistance)

    2.2 [8]

  • 8

    2.

    75% ( ) closed cell

    1,300 4

    2.3 [5]

    (..) /

    7.5 20.0 60.0 8.33 5.4 45.0 10.0 20.0 60.0 8.33 7.2 60.0 12.5 20.0 60.0 8.33 9.0 75.0 15.0 20.0 60.0 8.33 10.8 90.0 17.5 20.0 60.0 8.33 13.0 108.5 20.0 20.0 60.0 8.33 14.4 120.0

    2.4 [5]

    ()

    7.5 20.0 60.0 7.5 40.0 60.0 7.5 20.0 30.0 7.0 3.0 15.0 ..

    500-600 500-600 500-600 1,350-1,500 ./.

    0.09-0.13 0.09-0.13 0.09-0.13 1.15 /.

    32-42 32-42 32-42 58-70 /..

    4 4 4 1-2

    50-60 50-60 50-60 20-40 ./.

    . 0.3 0.3 0.3 1.5-2.0 ..

    1.0 1.0 1.0 1.5-3.0 ..

    20-25 40 20-25 8-.. ..//

  • 9

    3. (Mortar)

    1-2 mm 2

    3.1 ( 1,000 C )

    Heatsetting Mortar (HM)