Aerospace Super Huge Invar Steel

1. Product Range
Forged and seamless rolled forgings
Open-Die forgings
Closed-Die forgings
Hammer forgings

Paike offers many specialities seamless rolled rings, stamped shafts, hubs, discs and other  open-die forgings up to 25 ton`s in weight.

Dimensions of Forgings
Tube sheets / discs and holed discs:
D: ≤1200mm     D: ≤2600mm
d: 100~400mm     d: ≤450mm
H: ≤350mm      H: ≤1500mm
Rings: 
D: ≤2300mm     D: ≤10000mm
d: ≥400mm      d: ≥450mm
H: ≤1600mm     H: ≤1000mm
Plates: 
W:≤1000mm     W:≤2000mm
L: ≤1000mm     L: ≤4000mm
H: ≤60mm       H: ≤120mm
Holed cylinders: 
D:≤2300mm     D:≤2500mm
d: ≤400mm     d: ≤700mm
L: ≤1600mm    L: ≤5000mm
Round smooth shafts:
D:100~450mm    D:150~950mm
L: 200~6000mm    L: ≤7000mm
Smooth shafts with variable section/Progressive shafts/Step forging shafts: 
D:150~450mm   D:≤1000mm
d: 100~400mm   d: ≤850mm
L: ≤6000mm    L: ≤7000mm
Smooth forgings with square section:
H:100~400mm    H:150~900mm
L: 200~6000mm   L: ≤6000mm
Cubes and blocks:
W:≤500mm      W:≤1000mm
L: 200~2000mm    L: 200~2000mm

2. Main Material




3. The Manufacturing and Inspection Process

Raw Material Smelting/Stock depending on the material and quantity
EF, LF, VD, ESR, VAR, VIM

QC control: suppliers of steel quality control, audited suppliers, chemical analysis before factory acceptance

Material Inspection
Inventory of square and round billets and ingots
Billets in condition:
Hot rolled
Casted
Continuous casted
Forged

Cutting Material
Cutting of square billets
Cutting of round billets
Cutting of ingot
Weight control
Visual control

FORGING
Hammer Forging
Held by manipulator
Open-die forging
Progressive forging
Open-Die Forging
Held by manipulator

ROLLING
Ring Rolling

HEAT TREATMENT
For example
normalizing
quenching(water, polymer, oil) and tempering
annealing
stress relieving
solution treating
aging

Data recording
Heat treatment cycle
Hardness testing

TESTING
Micro-structure
Grain Size
Charpy Impact Test
Tensile Test
NDT-UT-Testing

MACHINING
Programming Turning
Programming Drilling
Programming Milling

4. Production Facilities

Sawing Equipment
18 Band saws in different sizes, saw diameter up to 1'600 mm

Heating Furnaces before forging
12 furnaces, gas heated 1'180° C max size: 5200mm×4500mm×4100mm with fully automatic temperature control and recorder equipped with temperature control, calibrated thermocouples
9 Electrically heated furnaces up to 1'200° C max size: 4500mm×4200mm×1600mm with fully automatic temperature control and recorder, equipped with temperature control, calibrated thermocouples
Equipped with temperature control, calibrated thermocouples

Forging Facilities
1 Hammer
4 Hydraulic forging presses,
Open die forgings, 1'250T(12.5MN), 2'000T(20MN) and 3'600T(36MN)
Closed die forgings, 8000T(80MN)
3 Ring mills 2000mm, 5000mm, up to 10000mm OD and max unit weights 25 tons

Heat Treatment Furnaces
1 furnaces, gas heated 1'180° C size: 6800mm×6800mm×2400mm with fully automatic temperature control and recorder equipped with temperature control, calibrated thermocouples (normalizing)
1 Electrically heated furnaces up to 1'100° C size: 5200mm×5200mm×1200mm with fully automatic temperature control and recorder (normalizing)
4 Electrically heated furnaces up to 1'100° C size: 4200mm×4200mm×1500mm
with fully automatic temperature control and recorder(normalizing, quenching, tempering)
1 Electrically heated Bell-type furnace up to 1'100° C size: Φ7000mm×2000mm
2 Electrically heated furnaces up to 1'100° C size: 2000mm×2000mm×1500mm with fully automatic temperature control and recorder(normalizing, quenching, tempering)
1 Electrically Solution treating furnace size: 19900mm×12600mm×10200mm with fully automatic temperature control and recorder(solution treating)
1 Quenching tanks 12000mm×8000mm×6000mm, for water equipped with recirculation and cooling system
1 Quenching tanks 8000mm×8000mm×6000mm, for polymer equipped with recirculation and cooling system

Machining Equipment
21 Conventional lathes with horizontal face plates max. Ø 5'000mm x 1'200 mm
9 CNC lathes with horizontal face plate max. Ø 8'000 x 1'200 mm
1 CNC Drilling machine, max. Ø 5000mm x 500 mm
Subcontractor:
Machining center
Milling machines
Boring machines

Testing Facilities
Mechanical Tests
1 Tensile test machine in normal temperature,
1 Tensile test machine for high temp.up to 1300ºC
1 Impact test machine
Equipment for deep temp. impact tests min temp: -196ºC
6 Hardness test machines

Laboratory
Micro-structure and grain size tests
Corrosion tests
Jominy end quench test
Carbon and Sulfur analysis
Spectroscopical identity test

NDT Equipment
Ultrasonic testing
Magnetic powder testing
Dye penetration testing
Visual testing
Dimension control

5. Our Qualification
ISO 9001/AS9100 Aerospace Quality System
ISO 14001
OHSAS 18001
Lloyd's Register of Shipping(LR)
American Bureau of Shipping(ABS)
Det Norske Veritas(DNV)
Nippon Kaiji Kyokai(NK)
Korean Register of Shipping(KR)
RINA
Bureau Veritas
Germanischer Lloyd
TUV PED Certificate