China Shipbuilding Industry CorporationGroup Company 725 Research Institute:15000JLarge pendulum oscilloscope impact testing machine

      China Shipbuilding Industry Corporation (CSIC)，CSIC was established on July 1, 1999，It is a super-large state-owned enterprise formed by the reorganization of some enterprises and institutions of the former China State Shipbuilding Industry Corporation，It is mainly engaged in the research and development and production of naval equipment, civil ships and supporting, non-ship equipment，It is the only one of the world's top 500 enterprises in China's shipping industry。Purchased the 15000J large pendulum oscilloscope impact testing machine developed by Wanyi。 

      This equipment is another large-energy pendulum impact testing machine developed by our company. This machine is mainly used for the drop hammer tear test of pipeline steel and medium-thickness steel plate ferritic steel, that is, DWTT test;And the dynamic tearing test of medium-thickness ferritic steel, that is, DT test。During the test, the hammer of a certain mass is lifted to a certain height, and then released by static, the hammer falls freely and impacts the sample, causing the sample to tear。By observing the characteristics of the fracture surface of the sample, the impact resistance of the material is studied and judged。

     The testing machine has the function of instrument impact (oscillographic impact), accurately measure the force-displacement curve of the specimen when it is broken, and obtain the characteristic values of the impact force, which provides quantitative basis and results for the study of the impact resistance of the material。At the same time, the testing machine realizes the process of automatic lifting, sample delivery, impact, fracture sample collection, and then grasping the hammer。

       The design engineer of this equipment in our company has more than 10 years of similar equipment design experience，In-depth understanding of similar products at home and abroad，The technology used is combined with the corresponding national standards，The 15000J large pendulum oscilloscope impact testing machine is designed，At the same time, our company has many years of similar equipment production experience and mature manufacturing technology，The 15000J large pendulum oscilloscope impact testing machine was produced，It has excellent quality and reliability, good operability, convenient maintainability and safety。

Device Name:Large pendulum oscilloscope impact testing machine

Equipment model:PIT154E

Product use:It is mainly used for the drop weight tearing test of pipeline steel and medium-thickness plate ferritic steel, that is, DWTT test;And the dynamic tearing test of medium-thickness ferritic steel, that is, DT test。

Manufacturer:Shenzhen Wan test equipment Co., LTD

Product use:15000 large pendulum oscillating oscillating impact testing machine is mainly used for drop weight tearing test of pipeline steel and ferritic steel of medium thickness steel plate, that is, DWTT test;And the dynamic tearing test of medium-thickness ferritic steel, that is, DT test。During the test, the hammer of a certain mass is lifted to a certain height, and then released by static, the hammer free fall impacts the sample, causing the sample to tear

Test criteria met:

GB/T 5482-2007 "Dynamic tearing test Method for Metal Materials"

GB/T 8363-2007 "Ferrite steel drop hammer tear test method"

GB/T 19748-20057 "Steel Charpy V-notched pendulum impact test instrumented test method"

Main technical parameters and requirements:

Maximum impact energy: not less than 15000J (up to 20000J)

Energy selection (4 levels) : 7500J, 10000J, 12500J, 15000J

Pendulum prelift Angle: 81.6°～135°

Impact speed: 5.0m/s～7.0m/s

Pendulum torque (impact constant): 8786.8N.m

Distance from pendulum center to sample center: 1500mm

Angle accuracy: dial 0.5°、数字0.025°

Span of sample support (adjustable) : DT test: 406±1.5mm、500±1.5mm、600±1.5mm

                               DWTT test: 254+1.5mm

Impact knife Angle: 30° (0°)

Hardness of impact knife and support: 60 ~ 64HRC

Impact knife arc radius: DT test: 38±0.3mm;DWTT test: 25±0.2mm

Sample support end arc radius: DT test: 35±0.8mm;DWTT test: 14.3±1.0mm

Sample bearing surface inclination: 11°

Deviation between center line of impact knife and center line of support: ≤±1.0mm

Sample size:

DT test: 460×120×25mm

550×160×32mm

650×200×40mm

DWTT test: 305×76.2×5～45mm

Automatic sampling cooling device

Cooling method: liquid nitrogen

Sample capacity: 6 pieces

Operating temperature: 40℃ ~ -100℃

Temperature control accuracy: 1℃

Cooling rate: approx. 1.5℃/min

Automatic sample alignment deviation: ≤0.8mm

The time from the surface of the specimen to the burst: 9 seconds

Height control and measurement error: ≤0±8mm。

The limit switch and photoelectric switch are all Omron products to ensure accurate lifting and landing control。

Oscillographic impact system:

Maximum load of force sensor: 150kN

Force sensor error: ≤±1.0％

Sampling frequency (data acquisition resolution) : 2000kHz

Analog-to-digital converter bits: 16 bits

Frequency response is not less than 500kHz

Speed sensor transmitter response time: ≤0.02ms

Displacement measurement error: ≤±1%

Total power: 6kW

Device dimensions: 3600x3100x6500mm

Weight: Approx. 20000kg