Equipment Overview:
The testing machine is mainly used for the drop hammer tear test of pipeline steel and medium-thickness plate ferritic steel, that is, DWTT test。The testing machine integrates mechanical, electrical and automatic control technology to realize the full automatic process of feeding, lifting, impact, fracture sample collection and grasping。In addition, the testing machine is equipped with multiple protection measures, which greatly improves the safety of operators and equipment use。This machine is a test instrument commonly used by pipeline steel manufacturers, large steel mills, iron and steel research institutes and other enterprises and scientific research units。
Main functions:
The testing machine is mainly used for the drop hammer tear test of pipeline steel and medium-thickness plate ferritic steel, that is, DWTT test。
Main features:
1: Equipped with a specially designed anvil replacement tool, anvil replacement is simple and convenient。
2: The programmable controller of Siemens is equipped with touch screen control, which has the advantages of high reliability, strong anti-interference ability, versatility, adaptability, expansibility and small maintenance workload。
3: With automatic sample delivery, automatic positioning function, easy to operate, high efficiency。
4: The frame structure is adopted, and the bottom plate and top plate are connected by 4 columns。The bottom plate is made of solid steel plate, which fully ensures the stability of the testing machine during impact。
5: The hammer body is made of high-strength monolithic steel plate processing, high impact strength, will not be due to the use of casting defects and fracture。
6: The use of chain lifting hammer, compared with the ordinary wire rope, the chain elasticity is small, so that the height measurement is more accurate。And the chain has high strength, is not easy to wear, and is safer than the wire rope。
7: The testing machine grab hammer device is a specially designed self-locking device, grab the hammer and then self-locking, under the action of gravity will not happen, accidental power will not open, high safety。
8: With a fully closed protective net and multiple safety protection devices, fully ensure the safety of test personnel。
9: Intelligent control system, which can alarm the following failures: sample failure, hammer head not self-locking failure, protection device failure, hammer head lifting failure。
Meet the criteria:
1. GB/T 8363-2007 "Ferrite steel drop hammer tear test method"
2. ASTM E436-03 Standard Test Method for Drop-Weight Tear Tests of Ferritic Steels
3. API RP*5L3-96 Conducting Drop-Weight Tear Tests on Line Pipe
Application Industry:
Measurement and quality inspection;Metallurgical iron and steel;Mechanical manufacturing;Research laboratory;Departments for commodity inspection, arbitration and technical supervision;Other industries。
Original configuration:One main machine and one sample delivery device
Scalable configuration:Drop hammer tear sample notching press, low temperature instrument, DWTT test automatic manipulator sample delivery device, air compressor (only need to be selected when matching manipulator)
Technical parameters:
型号 | DIT304C | DIT504C | DIT804C | DIT105C |
Maximum impact energy (J) | 30000 | 50000 | 80000 | 100000 |
Minimum impact energy (J) | 8000 | 20000 | 20000 | 20000 |
Main weight (kg) | 630 | 1600 | 1620 | 1620 |
Main weight mass error (%) | ±1 |
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Weight mass (kg/ block) | 30（共13块） | 30（共12块） | 30（共26块） | 30（共29块） |
Weight mass error (%) | ±0.5 |
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Total weight (kg) | 1020 | 1960 | 2400 | 2490 |
Impact height (mm) | 1275-3000 | 1275-2610 | 1275-3400 | 1275-4130 |
Impact velocity (m/s) | 5-7.67 | 5-7.14 | 5-8.16 | 5-9 |
Lifting speed (m/min) | 约4 |
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Height measurement error (mm) | ≤±10 |
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Hammer edge hardness | HRC58-62 |
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Hammer edge curvature radius (mm) | R15.5±0.1 |
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Support hardness | HRC58-62 |
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Deviation between center of hammer edge and center of support (mm) | ≤±1.5 |
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Span of sample support (mm) | 254±1.5 |
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Sample size (mm) | (305±5)x(76.2±1.5)x(3-40) |
Machine weight (kg) | 10000 | 15000 | 19000 | 20000 |
Host power supply | Three-phase five-wire system 380VAC±10% 50Hz 4kW | Three-phase five-wire system 380VAC±10% 50Hz 5kW |
This series of testing machine is mainly used for the drop hammer tear test of pipeline steel and medium-thickness plate ferritic steel, that is, DWTT test。It is a test instrument commonly used by pipeline steel manufacturers, large steel mills, iron and steel research institutes and other enterprises and scientific research units。Baosteel Zhanjiang Group, Hebei Pot Inspection Institute, Vietnam Hejing Iron and Steel, etc., have used the testing machine。
