การเชื่อมโลหะ Welding

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    22-Jan-2016

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  • 4 (Welding)

    (Welding) 2

    1. (Gas Welding)

    3,200

    2. (Arc Welding) (Arc)

    3. (Press Welding Non Fusion Welding) 2 (Spot Welding)

    4. TIG (Tungsten Inert Gas Welding)

    5. MIG (Metal Inert Gas Welding) MIG

  • 100

    6. (Submerged Arc Welding)

    (Granular Flux)

    (Gas Welding)

    (Gas Welding)

    (Filler Metal)

    3,200

    4.1 ( : : 3)

  • 101

    4.2

    ( : :18) 3 1)

    1.1 1.2 1.3

    2)

    2.1 2.2 2.3 3)

    3.1 3.2 3.3

  • 102

    6,000 Oxyacetylene

    4.1

    + + + + +

    3,316 6,000 2,500 4,600 2,400 4,300 2,500 4,500 1,750 3,200

    1)

    2) 3) 4)

    5) 6)

  • 103

    1. - (Oxy-Acetylene) + 2. + (Oxygen + Hydrogen) 3. + (oxygen + gas) 4. + ()

    (oxy- Acetylene flame) (Oxidizing flame) (Carburizing flame) 3 3

    6,000 3 1. (Neutral Flame)

    2. (Carburizing Flame)

  • 104

    3. (Oxidizing Flame)

    4.3 ( : 2545 :154)

    6.1.1 (Neutral flame) Balanced Flame

    (1:1) 4.3

    4.4 ( : 2545 :155)

    16

    5,900 3,300

    431

    (Caburizing Flame)

    6.1.2

  • 105

    (Reducing Flame) Acetylene Feather 3

    4.5

    ( : 2545 :155)

    5,700 3,150

    6.3 (Oxidizing Flame)

    (Inner Cone) 6.4

    4.6 ( : 2545 :156)

  • 106

    6,300 (3,400 o C) -

    1. 7. 2. 8. 3. 9. 4. 10. 5. 11. 6.

    4.7 ( : :30)

    1. (Oxygen cylinder) 2

    1.1

  • 107

    20 300 6 2,200 20

    3 1.

    2 3,360 10 , , , 183 Bar 150 Bar 2. ( Oxygen Cylinder Valve )

    4.8

    ( : :31)

  • 108

    3. (Safety Cap) 3 1/8 7 11 1.2 2 ( 4.4) 2 235

  • 109

    4.9

    ( : :33)

    - - - - - -

    2. (Acetylene cylinder)

    Balsa Wood 300 15 212

  • 110

    4.10 ( : :38)

    - -

    - () 15

    -

    -

    -

    3.

    -

    - - -

  • 111

    -

    2

    1. (Two Stage Regulators ) 2

    2,200 200 200

    4.11

    ( : :47)

  • 112

    4.12 ( : :42)

    2. (Single Stage Regulators)

    4. (Hose) 400 3/16

    4.13 : :52) (

    - - -

  • 113

    - - - 5. (Welding Torch)

    4.14 ( : :54)

    1. (Control Valves)

    2 Fuel Oxy 2. (Torch Body)

    3. (Torch Head) (Mixing Chamber) 2 2

    1. (Equal Pressure Type)

  • 114

    1-15 Balanced Pressure

    4.15

    ( : :40)

    2. (Injector Type) Low Pressure Type

  • 115

    4.16 ( : :41)

    (Welding Tip) 0 1

    4.17 ( : :55)

    6. (Welding Goggle) 4 5-6

  • 116

    4.18 ( : :41)

    7. (Tip Cleaner)

    4.19 : :7) (

    8. (Friction Lighter)

    4.20 : :42) (

    (Wrench)

    9.

  • 117

    4.21

    ( : :42)

    10. (Filler rods) 1. (Mild Steel) 2. (Cast iron) 3. (Stainless Steel) 4. 5. (Aluminium) 5.1 (Draw) 5.2 (Extruded) 5.3

    Mild Steel Stainless Steel 28 ( 100 .)

    1/32 ,3/32, 1/8 , 5/32 ,3/16 , , 5/16 , 3/8

    36 28

  • 118

    A.W.S GA-50 , GA- 60 , GB 65 ,GB-56

    G A B 45,50,60,65 1000 PSI 65 1,000 = 65000 PSI

    11. (Flux) American Welding Society (A.W.S) ,

    - - - -

    (Gas Welding Technique) 2

  • 119

    4.22 2 ( : 2545 :157)

    (Right to Left) 3

    4.23

    ( : 2545 :34)

  • 120

    3 (Keyhole) (Penetration)

    4.24 ( : 2545 :34)

    (Running a Bead)

  • 121

    4.25

    ( : 2545 :159)

    1. 2. 3.

    4.26 ( : 2545 :160)

    4.

    5.

    (Making Beads with Welding Rod)

  • 122

    4.27 ( : 2545 :161)

    4.28

    ( : 2545 :162)

    1. 2. 3. 6.15 4. 5.

  • 123

    4.29 ( : 2545 :163)

    (Making Butt Welds)

    4.30 ( : 2545 :163)

    4.30 ( : 2545 :164)

  • 124

    4.31 ( : 2545 :164)

    4.32 ( : 2545 :165)

    1. 2.

    3.

    45

    (Outside Corner Welds)

  • 125

    4.33

    : 2545 :166) ( 1.

    2.

    3.

    (Lap Welds) (Oil Fuel Tank)

    4.34

    ( : 2545 :168)

  • 126

    1. 2.

    (Tee or Fillet Welds)

    4.35

    ( : 2545 :170)

    1.

    2.

    4.36 (Undercut)

    ( : 2545 :171)

  • 127

    3

    4.37 (Beveled Butt Welding) ( : 2545 :172)

    1.

    2. 3.

  • 128

    4.38

    ( : 2545 :173)

    (Arc welding)

    2 (Resistance welding) (Arc welding) 10,000 12,000 3

    - (Cathode) - (Anode) - (Arc Plasma)

  • 129

    4.39 : :58) (

    ( Shielded Metal Arc Welding) 1.2 . 6,000 (Slag)

  • 130

    4.40

    : :3) ( (Welding Current)

    2 - (Alternating Current : AC) - (Direct Current : DC)

    (AC) 1 0 2 1 1 50 1 50 TIG 6.2 1 0

    4.41 1 : :56) (

  • 131

    (DC) 100

    4.42 ( : :56)

    (Basic Arc Welding Circuit)

    4.43

    ( : :120)

  • 132

    2 1. DCRP (Direct Current Reverse Polarity)

    4.44 ( : :121)

    70 % 30% 70 % 2. DCSP (Direct Current Straight Polarity) (-) (+)

  • 133

    4.45 ( : :120)

    (Welding Machine Voltage) 2 1. (Open Circuit Voltage) 50-80 2. (Arc Voltage) 20 40 (Welding Equipment)

    1. (Welding Machine) 2. (Electrode Holder) 3. (Welding Cable) 4. (Ground Clamps) 5. (Quick -Cable Connector)

  • 134

    6. (Helmet) 7. (Safety Hat) 8. (Chipping Hammer) 9. (Wore Brush) 10. (Tongs)

    1.

    220

    1. 50-80 2. 3.

    1.1 2 (Constant Current) (Constant Voltage)

    1.1.1 (CC) Stud

    1.1.2 (CV)

    /

  • 135

    1.2

    1.2.1 (Generator and Alternator Welding

    Maching)

    220

    4.46 : :126) (

    4.47 ( : :127)

  • 136

    4.48

    ( : :67)

    1.2.2 (Transformer Welding Machines)

    (Acr Blow) 2. (Transformer Rectifier Welding Machines) (Tig)

  • 137

    4.49 ( : :128)

    3. (Inverter Power Source) 50 2-20 DC AC/DC

    4.50 ( : :70)

    (Selecting a Power Source)

    1. 2. 3. Duty cycle

  • 138

    Duty cycle

    1. (Cables) 2 (Ground Clamp) (Electrode Holder)

    4.51

    ( : :73)

    4.2 , A.W.G

    60 100 150 200 300 400 100 150 200 250 300 350 400 450 500

    4 2 2 2 1

    1/0 1/0 2/0 2/0

    4 2 2 2 1

    1/0 1/0 2/0 2/0

    4 2 1

    1/0 2/0 3/0 3/0 4/0 4/0

    2 1

    1/0 2/0 3/0 4/0

    1 2/0 3/0

    1/0 3/0 4/0

    ()

    ( 400 4/0 4/0

  • 139

    800 1200 1600

    4/0(2) 4/0(3) 4/0(4)

    4/0(2) 4/0(3) 4/0(4)

    2. (Electrode Holder)

    4.52

    ( : :75)

    3. (Ground Clamp)

  • 140

    4.53 ( : :75)

    4. (Cable Connectors)

    4.54

    ( : :76)

    5. (Welding Helmets) 2 - 10

  • 141

    4.55 a) b) c)

    ( : :76)

    6. (Chipping Hammer)

    7. (Wire Brish)

    4.56 ( :