CNG & Hydrogen Containers
Production capacity of CNG & hydrogen containers with independent press process, not the world's only extrusion type
Technology | Technical summary | Key point & Know How |
Forging | · Large Size Ai. Billet(6061-13") · 7,000ton Forging Press · Backward Extrusion · Diameter 15" to 20" or more | · Material and mold temperature management · Forging speed, optimal management of Metal Flow · Earning, straightness, thickness uniformity · Mold, Tool Design (Die, Punch..) |
Flow-Forming | · Mandrel Forging · Metal Incremental Forming · Adjustable thickness arbitrarily · Different thicknesses can be applied to one tube in two or three stages · External diameter 20", length 2,300mm can be produced · Product production technology without connecting parts (welding parts) | · Mandrel Design Technology · Forming Tool (Roller) Design Technology · metal flow direction management technology · Working condition setting management technology according to the characteristics of materials · Product production technology with uniform metal properties · Working Conditions Management Technology with Changes in Diameter and Length |
Neck-Spinnning | · Large SIZE Necking Technology (available up to 20" outside diameter) · A shape that gradually increases in thickness toward the end of the dome · a shape in which the dome of the outside is naturally connected | · Material Temperature Management · Chi, Tool Design Technology · Shape Design and Implementation Technology · Metal flow · Dome Thickness Management |
Business fields and technologies
Major facilities | Forged | Flow Forming | ||
Inner diameter | External diameter | Thickness | Length | |
Flow-Forming Styles | ||||
Tubes | 295 357 371 381 430 460 482 | 311 370 383 392 441 472 502 | 5.0 6.0 6.7 7.6 9.5 13.0 | 최소 1,000 ~ 최대 3,220 |
Producible Specifications | External diameter 13"–20" Thickness: 4.0 mm – 15.0 mm | |||
Note | Need to negotiate for new product development |
Production capacity by process
Process | Forging | Flow-Forming | Grinding | Cleaning |
Facilities | 1 | 3 | 1 | 1 |
Monthly production capacity | 3,200 | 600 | 1,300 | 1,300 |
Manufacturing Method and Characteristics of CNG Containers
Tube TYPE | Materials and Method | Characteristic | Weight |
TYPE 1 | · Materials : steel Tube · Method : Manufacture Necking Steel Tube | · Strength : Low Price, Simple process · Weakness : Heavy weight, Corrosion, Explosion | · 0.80kg/L · 104Kg/130L |
TYPE 2 | · Materials: Steel Tube, Composite (Glass Fiber) · Method: Strengthen the body part with composite material on the steel liner, Hoop Wrapped Cylinder | · Strength : Low Price, 10% light weight than TYPE 1 · Weakness : Heavy weight, Corrosion, Explosion | · 0.72kg/L · 93.6Kg/130L · Type 1 : -10% |
TYPE 3 | ·Materials: Aluminum liner, composite (carbon fiber) · METHOD: Reinforced the entire aluminum liner with a probe fiber, Full Wrapped | · Strength : Light weight(56% light weight than TYPE 1), Safety(No explosion) · Weakness : High Price, Complicated process | · 0.34kg/L · 45.0Kg/130L · Type 1 : -56% |
TYPE 4 | · Materials: Plastic liner, metal BOSS, composite (carbon fiber) · METHOD: Strengthen the entire liner assembled with plastic body and metal BOSS with a probe fiber, Full Wrapped | · Strength : Light weight(58% light weight than TYPE 1), Safety · Weakness : High Price, Complicated process, Leakage Gas, Need improved desing of combination with Boss | · 0.34kg/L · 44.0Kg/130L · Type 1 : -58% |
* Hoop Wrapped : A method of reinforcing rupture strength by winding only the body part of the container with composite materials - TYPE 2
* Full Wrapped: Method of securing rupture strength and stability by winding the entire container (Liner) with composite materials - TYPE 3 and TYPE 4
Major production process
Major facilities | AL.6061 Billet | Forging | Machining | Flow-Forming |
Process | ||||
Production |
Raw Ingredients Components and Mechanical Properties
Element | Mg | Si | Cu | Fe | Cr | Zn | Ti | Mn | Bi | Pb | Others, Each | Others, Total | Ai |
Composition (ISO Standard) | 0.80 ~1.20 | 0.40 ~0.80 | 0.15 ~0.40 | ~0.70 | 0.04 ~0.35 | ~0.25 | ~0.15 | ~0.15 | ~0.003 | ~0.003 | ~0.05 | ~0.15 | Balance |
Compositon (GTech Report) | 0.90 ~0.95 | 0.57 ~0.60 | 0.31 ~0.35 | 0.13 ~0.15 | 0.07 ~0.08 | 0.003 ~0.006 | 0.02 ~0.03 | 0.01 ~0.02 | 0.0017 ~0.0024 | 0.0008 ~0.0018 | Max 0.014 | Max 0.0335 | 97.81 ~97.91 |
Category | Range | ISO11439 | KGS412 | G.T Report |
Elongation | % | Min 14% | Min 14% | 15.7%~19.1% |
Yield strength | Mpa Kgf/cm² KSI | - | - | 281.45~303.03 28.7~30.9 40.82~43.95 |
Tensile strength | Mpa Kgf/cm² KSI | - | - | 326.56~342.25 33.3~34.9 47.36~49.64 |
ONEFUTECH
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(closed on Saturdays,
Sundays and holidays)
Name : OneFutech Co., Ltd. | CEO : Yoon Sun-ki | TEL : 041-752-5715
FAX : 041-752-5057 | Business number: : 508-85-11236
Address : 274 Gunbuk-ro, Jewon-myeon, Geumsan-gun, Chungcheongnam-do, Republic of Korea
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