DWTT Drop Hammer Impact Testing Machine

DWTT Drop Hammer Impact Testing Machine
DWTT Drop Hammer Impact Testing Machine
DWTT Drop Hammer Impact Testing Machine


1. Instroduction

The testing machine is mainly used for drop weight tear test of pipeline and in thick steel ferritic steel, namely DWTT test. The test machine intergrating mechanical, electrical, automatic control technology to one, and to achieve fully automated process of feeding, lifting hammer, impact, fracture specimen collection, grab the hammer. In addition, this test machine has multi-channel protection measures, greatly improve the safety of operating personnel and equipment use. It is commonly used test equipment by the pipeline manufacturer, large steel mills, Iron and Steel Institute and other enterprises and research institutes.


2. Test standard
GB/T 8363-2007 "ferritic steel drop weight tear test method"
ASTM E436-03 "Standard Test Method for Drop-Weight Tear Tests of Ferritic Steels"
API RP*5L3-96 "Conducting Drop-Weight Tear Tests on Line Pipe"


3. Technical parameter

MODEL

DWTT-

20000

DWTT-

30000

DWTT-

50000

DWTT-

800000

DWTT-

1000000

Maximum Energy(J)

20000

30000

50000

80000

100000

Minimum Energy(J)

8000

8000

20000

20000

20000

Tup Mass(kg)

630

630

1600

1620

1620

Tup Mass Accuracy

±1%

Weight mass

120

390

360

780

1380

Weight mass accuracy

±0.5%

Total weight of tup

750

1020

1960

2400

3000

Drop Height(mm)

1275~2800

1275~3000

1275~2610

1275~3400

1275~3400

Velocity Of Drop(m/s)

5~7.67

5~7.67

5~7.14

5~8.16

5~8.16

Height Accuracy(mm)

≤±10

Hardness Of Tup Nose

HRC58-62

Radius Of Tup Nose

R25±0.1mm

Hardness Of Tup Nose

HRC58-62

Radius Of Tup Nose

R25.4±2.5mm

Sample Centered Error

±1mm

Specimen Dimension

(300±5)*(75±1.5)*(3-50)mm;(305±19)*(76.2±3)*(3-50)mm


P-3:(130±1)×(50±1)×(16±0.5)

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