Piston Rings

DPS offers various international brands complete line of Engine Piston Rings

Product Description for Engine Piston Ring

 Technical Specification

Material
Ductile cast iron
module of elasticity=150GPa
bending strength=1300MPa
hardness 100-112HR
High alloy cast iron F14
module of elasticity 130-160GPa
bending strength=650MPa
hardness 109-116HRB 
Multi alloy cast iron K4
module of elasticity 100-130GPa
bending strength=500MPa
hardness108-114HRB
WVTi alloy cast iron
module of elasticity 85-110GPa
bending strength=392MPa
hardness 97-108HRB
B Alloy cast iron
module of elasticity 90-110GPa
bending strength=392MPa
hardness 97-108HRB
Heat-resistant stainless steel
module of elasticity=196GPa
tensile strength=1219MPa
hardness 58-63HR30N
Alloy spring steel
module of elasticity=196GPa
tensile strength=1250MPa
hardness 480-550HV
High grade carbon steel
module of elasticity=196GPa
tensile strength=1275MPa
hardness68-72HR30N
Heat-resistant stainless steel
module of elasticity=196GPa
tensile strength=1175MPa
hardness 380-490HRB
Grey cast iron
module of elasticity 85-110GPa
bending strength=392MPa
hardness 97-102HRB
Manufacturing Single oval blank, cam machining technology
High precision surface grinding 
Process both OD and ID simultaneously
Micro electrical control technology to monitor design sizes
Surface treatment
Ion plasma spraying
Melting wear resistance
good self-lubrication
good heat conductivity
Hard chrome plating
Adhesive wear resistance
wear resistance
good heat conductivity
Nitriding
corossive resistance
wear resistance
good heat conductivity
Ceramics penetration
good heat conductivity
wear resistance
low discharge of waste
high hardness, anti-sand
PTFE coating
shorten running in period
improve surface friction
strengthen anti corrosive ability
Oxidization
improve initial running in
rust proof
improve appearance
Electrophoresis MOS2
improve self lubrication & running in
work together with Mo layer to prevent deterioration
Phosphating
improve initial running in
rust proof
Copper plating
shorten initial running in
prevent initial burn
Tin plating
shorten initial running in
prevent initial burn
TS16949 certificated.

Commercial specification

Product range most of international well-know engine

Development according to samples / drawings

Term:   20 days
Spec:     bore : <300mm
mini order: 1000 pcs / year
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