Test object: tensile specimen
Testing materials: multiple homogeneous materials
Test method: ball indentation method, uniaxial tension
Test equipment: PMT-1000
Portable Micro Indentation Tester for mechanical properties and residual stress testing
Micro Indentation Tester Technique — Mobile Mechanics Laboratory
◆ Tensile property
◆ Biaxial residual stress
◆ Hardness
◆ Fracture toughness etc.
（1-3 years cost recovery！！）
5.0
design customization
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Please fill out the form below to request a quote or to request more information about us. please be as detailed as possible in your message, and we will get back to you as soon as possible with a response. we're ready to start working on your new project, contact us now to get started.
Portable Micro-Indentation Tester for mechanical properties and residual stress testing
◆ Wuxi Zhanghua Pharmaceutical Equipment Co., Ltd./ Jiangsu Gurion High Technology Co. Ltd. is a team aiming to develop into a high-tech enterprise, focusing on the development and sales of portable non-destructive mechanical properties and residual stress testing devices.
◆ The team independently developed the mechanical properties and residual stress detector based on the indentation method/ pressing energy difference method, and designed a variety of supporting fixtures to make the product
suitable for different working conditions on site.
◆ The team is currently positioned in the field mechanical properties and residual stress testing industry of energy equipment such as pressure vessels and pressure pipelines
◆ Mainly to domestic third-party testing institutions and first-line production units
◆ The technology won the Gold Medal of the Geneva International Exhibition of Inventions.
◆ To special pressure equipment, long-distance transmission pipelines and remanufacturing
major energy equipment as service objectives.
◆ It can provide first-hand test data for finite element simulation, failure analysis, life evaluation, safety assessment, etc.,
◆ Realize the test support of both safety and economy
◆ Committed to the research and development of mechanical properties and residual stress detector series, related testing technical services.
Features
◆ On site non-destructive
◆ Lightweight and portable
◆ Accuracy assurance
◆ Applicable to multiple scenarios
Advantages
◆ Strength online test
◆ Stress nondestructive testing
◆ Welding process evaluation
◆ Heat treatment program customization
◆ Equipment failure analysis
◆ Equipment life assessment
Mechanical performance testing
1. Comparison with uniaxial tensile experiments
Yield Strength 60.2(MPa) | Tensile strength 6b(MPa) | |||||
Indentation | Stretch | Error | Indentation | Stretch | Error | |
Q345R | 435 | 412 | 5% | 595 | 547 | 8% |
15CrMo | 353 | 340 | 3.7% | 471 | 499 | -5.9% |
45Number steel | 353 | 333 | 5.7% | 541 | 560 | -3.5% |
12MnNiVR | 482 | 490 | -1.6% | 662 | 674 | -1.8% |
2. Comparison of steam pipelines before and after service
Test object: steam pipeline
Test material: 12Cr1MoV
Test method: ball indentation method, uniaxial tension
Test equipment: PMT-1000
Yield strength 6o.2(mpa) | Tensile strength 6b(mpa) | ||||||
Ball press | Stretch | Error | Ball press | Stretch | Error | ||
Raw steel | 309.7 | 305.9 | 1% | 510.0 | 480.7 | 6% | |
Service steel | 249.3 | 230.7 | 8% | 492.6 | 474.3 | 4% | |
3. Tank strength test
Test object: storage tank
Test material: Q235B
Test method: ball indentation method
Test equipment: PMT-1000
 |
| Yield Strength | tensile strength |
1 | 262.95 | 477.86 | |
2 | 260.80 | 476.21 | |
average | 261.88 | 477.04 |
4. Strength testing of steel pipes in service
Test object: Service steel pipe
Test material: 20 # steel
Test method: ball indentation method
Test equipment: PMT-1000
 | Yield Strength | tensile strength | |
1 | 293.31 | 533.49 |
5. Strength test of high-pressure waste heat exchanger
Test object: high-pressure waste heat exchanger
Test material: CrMoV steel
Test method: ball indentation method
Test equipment: PMT-1000
Test serial number | from center of weld | Yield Strength | Tensilestrength | workhardening index （n) |
1 | 70 | 438.787 | 585.323 | 0.194 |
2 | 35 | 454.357 | 608.69 | 0.158 |
3 | 0 | 520.633 | 678.637 | 0.174 |
4 | 35 | 454.079 | 607.626 | 0.160 |
5 | 70 | 431.036 | 571.466 | 0.165 |
Residual stress testing
1. Comparative experiment
Test object: high-pressure waste heat exchanger
Test material: CrMoV steel
Test method: ball indentation method
Test equipment: PMT-1000
Material | 6x(Applied Value) | 6x(Actual Value) | Absolute Error | 6y(Applied Value) | 6y(Actual Value) | Absolute Error |
S45c | 268 | 262 | -6 | 239 | 257 | 18 |
144 | 177 | 33 | 249 | 284 | 35 | |
77 | 87 | 10 | 287 | 267 | -20 | |
12cr1mov | 192 | 210 | 18 | 15 | 18 | 3 |
45 | 22 | -23 | 174 | 159 | -15 | |
96 | 78 | -18 | 191 | 184 | -7 |
2. Additive manufacturing specimens
Test object: Residual stress of additive manufacturing specimens
Test material: Inconel718
Testing methods: indentation energy difference method, X-ray diffraction method
Test equipment: PMT-1000
3. Thick walled cylinder weld seam
Test object: Residual stress in welded specimens of thick walled cylinders
Test material: 15CrMoR
Testing methods: indentation energy difference method, indentation strain method
Test equipment: PMT-1000
4. Large heat exchanger tube plate circumferential weld
Test object: Residual stress in the circumferential weld seam of large heat exchanger tube sheets
Test material: Q345R
Test method: Pressure energy difference method
Test equipment: PMT-1000
Cylinder Side | Longitudinal Stress | Transverse Stress |
1 | 165 | -21 |
2 | 164 | 13 |
3 | 123 | 26 |
5. Circumferential weld seam of heat exchanger cylinder
Test object: Residual stress of the circumferential weld seam of the heat exchanger cylinder after heat treatment
Test material: Q345R
Test method: Pressure energy difference method
Test equipment: PMT-1000
Applicable to multiple scenarios
◆ Residual stress detection of longitudinal weld seam of cylinder section
◆ Residual stress detection of reactor cylinder closure weld seam
◆ Residual stress detection of the welding layer on the inner wall of the cylinder
◆ Residual stress detection of welds in heat exchangers before leaving the factory
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Contacts: Peggy Zhang
Tel: 0086-510-83551210
Wechat: 86 13961802200
86 18118902332
WhatsApp: 86 13961802200
86-18118902332
WhatsApp: 1(805)869-8509
Email: zqz008@126.com，zhangpeijie@zhanghuayaoji.com
vincent_zhang@zhanghuayaoji.com
Address: Shitangwan Industrial Park, Huishan District, Wuxi, PRC
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