Stressonic Process by Sonats for Primary Pump Shaft

transcript

1 Stressonic® Process

Primary Pump Shaft Applications.

Stressonic® Process

by Sonats

for Primary Pump

Sonats customer list for

Primary Pump Shaft by

Stressonic®

Primary Pump Shaft Applications

Stressonic® Application :

Primary Pump Shaft

Application :

Reduce the Thermal Fatigue Cracking

under the thermal flange onto the

Primary Pump Shaft.

Customer :

JEUMONT Industrie,

an AREVA subsidiary,

France location.

Where is the STRESSONIC® Equipment :

There is 2 equipments : one is onto the Repaired

Contaminated Plant and the other is onto the

Manufacturing Plant. Both equipments are in France

Primary Pump Shaft Applications

Primary Pump Shaft

Primary Pump

Primary Pump Shaft

JEUMONT Industrie

STRESSONIC® treatment of a

primary pump shaft on site

Primary Pump

Acoustic BlockAcoustic Block

Control UnitControl Unit

The application is made onto the shaft length

after removing the cracks. The crack is

removed by turning. Then, after this

operation, the STRESSONIC® process is

applied directly onto the turning lathe.

This STRESSONIC® peening operation is

made into the Repaired Contaminated Center

Primary Pump Shaft

The application is made onto the shaft length

after removing the cracks. The crack is

removed by turning. Then, after this

operation, the STRESSONIC® process is

applied directly onto the turning lathe.

This STRESSONIC® peening operation is

made onto Manufactured Parts

Primary Pump

Primary Pump Shaft

STRESSONIC® Parameters :

Material to be peened : Stainless steel 347,

Type of balls : 304L – Ø2,00 mm,

Amplitude : 60 µm c/c,

Coverage : 150 %

Roughness

Before

Circumferential

Ra = 0,19 µm

Rt = 1,52 µm

Longitudinal

Ra = 1,98 µm

Rt = 13,57 µm

Circumferential

Ra = 1,95 µm

Rt = 10,67 µm

Longitudinal

Ra = 2,02 µm

Rt = 13,15 µm

Stressonic®

Primary Pump Shaft

Residual Stress

0 20 40 60 80 100 120 140 160 180 200 220 240

Depth [µm]

STRESSONIC® Condition #4 - Longitudinal Direction

STRESSONIC® Condition #4 - Circumferential Direction

Pipes for Cooling

Application :

Reduce the Thermal Fatigue Cracking

into Stainless steel Pipes Ø700 mm

(Primary Circuit).

Customer :

COMEX, an ONET

subsidiary, France

location.

For repairing after Cracks discovery and repairing.

The equipment is dedicated for Power Plant.

Primary Circuit

Reactor Cooling

Pipe : RCP Pipe

Reactor Cooling

Pipe : RCP Pipe

Pipes for Cooling

Main shroud of

Power Plant

Pipes for Cooling

Ø3” & Ø4”

700 mm internal

diameter Pipe

700 mm internal

diameter Pipe

Pipes for Cooling

Peening of the inside of the pipe Ø700 mm

Pipes for Cooling

Material to be peened : Z2CND18-12 (Forged),

Coverage : 125 %,

Distance of Treatment : 25 mm.

Peening of the inside of the pipe Ø700 mm

Pipes for Cooling

Peening of the pipe Ø3” and Ø4”

Pipes for Cooling

Material to be peened : Z2CND18-12,

Coverage : 125 %.

Peening of the pipe Ø3” and Ø4”

Pipes for Cooling

Peening onto a surface with Ra < 3,20 µm Before Treatment

MACHINED SURFACE

Before STRESSONIC® :

Roughness : Residual Stress :

Ra = 0,55 µm,

Rt = 6,52 µm,

Rz = 4,21 µm.

Surface : - 425 MPa

25 µm : + 25 MPa

After STRESSONIC® :

Ra = 1,55 µm,

Rt = 9,98 µm,

Rz = 6,34 µm.

Surface : - 499 MPa

40 µm : - 283 MPa

100 µm : - 169 MPa

200 µm : - 170 MPa

Pipes for Reactor Cooling

MACHINED + WELDED SURFACE

Before STRESSONIC® :

Ra = 1,16 µm,

Rt = 11,38 µm,

Rz = 7,76 µm.

Surface : - 261 MPa

After STRESSONIC® :

Ra = 1,71 µm,

Rt = 9,61 µm,

Rz = 6,11 µm.

Surface : - 462 MPa

40 µm : - 255 MPa

100 µm : - 240 MPa

200 µm : - 229 MPa

Pipes for Cooling

Austenitic Transformation Validation

Before STRESSONIC®

After STRESSONIC®

Ref. Test : Rate [%] Rate [%]

# 1 98,00 99,00

# 2 99,00 98,00

# 3 98,00 97,00

Average : 98,33 98,00

Pipes for Cooling

Hardness After STRESSONIC®

Depth under Surface [FORGED] Hardness

0,025 mm 326 HV0,1

0,050 mm 334 HV0,1

0,100 mm 331 HV0,1

Pipes for Cooling

Application :

Reduce the Stress Cracking Corrosion

onto Stainless steel engine parts for

Submarines.

Customer :

TECHNICATOME, an

AREVA subsidiary,

France location.

Sonats developed the qualification and make the Field

job with Sonats Tooling. The job is made into Repair

Center (Contaminated area) in France.

Pipes for Cooling

StressVoyager®

Central unit

StressVoyager®

Central unit

Acoustic BlockAcoustic Block

Part : PipePart : Pipe

Partition Plate

Application :

Introduce Compressive Stresses after

repairing the Cracks onto the Partition

Plate of the French Power Plants.

Customer :

FRAMATOME ANP, an

AREVA subsidiary,

France location.

In France.

The strategy is to use this equipment after each repair

each time a crack is discovered.

Partition Plate

STRESSONIC® Head Holder

onto a Robotic System

StressVoyager®

Central Unit

Partition Plate

The application is to introduce high

compressive residual stresses on Nickel

alloy (Partition Plate) after Repairing by

Machining and / or Machining + Welding

Partition Plate

The application is to introduce high

compressive residual stresses on Nickel

alloy (Partition Plate) after Repairing by

Machining and / or Machining + Welding

Material to be peened : I600 & I690,

Type of balls : I718 – Ø4,00 mm,

Coverage : 125 %,

Distance of Treatment : From 20 to 80 mm

Partition Plate

Residual Stress on APP sample.

Before STRESSONIC®

Treatment

Profils de contraintes sur éprouvette APPP

0 100 200 300 400 500 600 700 800

Profondeurs (µm)

Condition C5 Point 3

Zone Brute

Profils de contraintes sur éprouvette APPP

0 100 200 300 400 500 600 700 800

Profondeurs (µm)

Zone Brute

Different STRESSONIC®

Condition

J-Weld

Application :

Introduce Compressive Stresses after

onto the J-Weld area – Top Nozzle

penetration.

Customer :

MITSUBISHI Heavy

Industry, Div. Japan.

In Japan.

J-Weld

Stressonic Process by Sonats for Primary Pump Shaft

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