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1TMC ( Techno Material Corp.)
Wear Resistant Twin Wall Pipe System
2TMC ( Techno Material Corp.)
▣ Applications of Twin pipe & Twin Elbow for CPT
3TMC ( Techno Material Corp.)
▣ Twin Wall Pipe System
■ Features
● Multi-layer pipe for abrasion resistance piping systems
▶ Inner pipe : hardened steel (HRA 75 ~85 )
▶ Outer pipe : high ductility low carbon steel
(max HRC25)
● High wear resistance
● Absorb impact and contain pressure
● Applicable hydraulic piping system
▶ Concrete pump truck, industrial pipe system
4TMC ( Techno Material Corp.)
▣ Newly Designed Twin wall pipe for CPT – Characteristics Ⅰ
MULTI- LAYER PIPE HARDNESS PROFILE
0
200
400
600
800
INSIDE PIPE
MIC
RO H
ARDN
ESS(
HV)
OUTSIDE PIPE
• Hardened Inner Liner for Abrasion Resistance and High Strength o
uter Tube
-. An inner liner hardened to at least Hv 600
-. A low-carbon outer shell to absorb impact and contain pressure
5TMC ( Techno Material Corp.)
Manufacture
Inner wall
Hardness
Outer wall
Hardness)Abrasive Wear
Impact Wear Process Cost, %
Induction Hardening(America)
HRC 58 ~ 62(HV600~680)
HRC 20 ~ 25 ◎ △
Thermo MechanicalProcess
△
Flame hardening(Germany)
HRC 60 ~ 65(HV720~800)
HRC 20 ~ 25 ◎ △
Thermo MechanicalProcess
△
TMC Ltd.(Korea)
HRC 60 ~ 65(HV
620~780)
HRC 20 ~ 25 ◎ ○
MechanicalProcess
(patterned)
○
범례 : : Excellent, ○ : Good , : Moderate , × : poor◎ △
▣ Newly Designed Twin wall pipe for CPT – Characteristics Ⅱ
6TMC ( Techno Material Corp.)
▣ Abrasion test (ASTM G65) Twin wall pipe
Abrasion Wear of INNER PIPE
0
10
20
30
40
50
60
C Developed
Wea
r lo
ss(m
m)
Flame Hardening TMC
• Abrasion test of Hardened Inner Liner
-. Long life in highly abrasive applications
-. Superior wear resistance to gas flame hardening and induction hardening
7TMC ( Techno Material Corp.)
▣ Field test of Twin wall pipe For CPT
• TMC twin wall pipe estimated wear rates by CPT
-. Lifetime pipe (M3) : min 100,000
8TMC ( Techno Material Corp.)
▣ Applications of Twin wall pipe