I. Equipment overview:
Full digital high frequency fatigue testing machine, mainly used to test a variety of metal materials, composite materials and other resistance to fatigue fracture performance of various technical parameters, after the configuration of the corresponding fixture and accessories, can test S-N curve, KIc、JIC, CTOD, etc,It is particularly suitable for testing the fatigue characteristics or fatigue life of various components (such as plates, gears, crankshafts, threads, bolts, screws, studs, chains, connecting rods, compact stretches, valves, etc.) and components (such as operating joints, connectors, and spiral motion pairs, etc.) under alternating forces,The experiments of prefabrication crack and crack propagation are also carried out,It can complete symmetric fatigue test, asymmetric fatigue test, unidirectional tensile or compression fatigue test, programmed (block spectrum) fatigue test, waveform composite (modulated) control fatigue test, three-point bending, four-point bending, eight-point bending, torsion, quasi-static fracture toughness and plane strain fracture toughness and other fatigue tests,The fracture mechanics of CT and SEB samples were studied,You can also configure conditions for a specific environment,Complete fatigue test under complex environment such as high and low temperature, corrosion, high and low pressure。
Second, performance characteristics:
Dual-purpose, dual load:The static load is loaded by the ball screw driven by the motor, and the dynamic load is loaded by electromagnetic resonance, which eliminates the mutual interference between the dynamic and static loads。Combining dynamic test function with static test function, dynamic and static dual use can be realized.
High frequency low consumption, accurate control:High test frequency, low electromagnetic resonance energy consumption (about 3% of the electro-hydraulic servo fatigue testing machine), servo motor to achieve fast and accurate average test force control;
Scientific design, high strength frame:With 4 columns and 4 (2) ball screw design, the main frame has high rigidity and good stability;
Multiple protection, flexible expansion:The equipment is equipped with multiple protection functions, including overload protection, mechanical limit protection, driver overcurrent protection, fracture protection, frequency reduction protection, load upper and lower limits protection。Fully ensure the safety of equipment and personnel。At the same time, the device includes a T-slot workbench for easy expansion of accessory configurations。
Closed-loop control, accurate and reliable:DSP full digital closed-loop control, to achieve fast and accurate test force control, to ensure accurate and reliable data。
Real-time display, easy operation:Software control system, using C language programming, efficient and fast;Dynamic and static loads can be set separately or simultaneously during the test。At the same time, static force, cyclic force, displacement, voltage, frequency, period, pulse width, deformation and other data can be displayed in real time。
Three, can meet the standards:
GB/T 2611-2022 testing machine general technical requirements
GB/T 25917.1-2019 Uniaxial fatigue test system - Part 1: Dynamic force calibration
GB/T 16825.1-2022 Testing and calibration of static uniaxial testing machines for metallic materials - Part 1: Testing and calibration of force measuring systems
GB/T 3075-2021 Metal material fatigue test axial force control method
GB/T 26076-2010 Fatigue test method for axial force control of sheet metal (strip)
GB/T 21143-2014 Unified test method for quasi-static fracture toughness of metallic materials
GB/T 4161-2007 Plane strain fracture toughness of metal materials KIcTest method
GB/T 6398-2017 Fatigue test of metal materials fatigue crack propagation method
GB/T 1499.2-2018 Steel for reinforced concrete - Part 2: Hot-rolled ribbed bars
GB/T 5224-2023 Steel strand for prestressed concrete
GB/T 13682-1992 Fatigue test method for threaded fasteners
GB/T 20736-2006 Fatigue test method for precision roller chains
GB/T 3098 series standard on the mechanical properties of fasteners fatigue test requirements
GB/T 14212-2010 Test methods for motorcycle chains
GB/T 1243-2006 Short-pitch precision roller chains, sleeve chains, accessories and sprockets for transmission
GB/T 21839-2019 Test method for steel used in prestressed concrete
GB/T 28900-2022 Test methods for steel used in reinforced concrete
HB 5287-1996 Test method for fatigue of metal materials under axial loading
JB/T 5488-2015 high frequency fatigue testing machine
Verification regulation of JJG 556-2011 axial extension fatigue testing machine
ASTM E647 Standard Test Method for Measurement of Fatigue Crack Growth Rates
ASTM E399-2017 Standard Test Method for Linear-Elastic Plane-Strain Fracture Toughness KIc of Metallic Materials
ASTM E467-2008 Standard Practice for Verification of Constant Amplitude Dynamic Force in an Axial Fatigue Tes-ting System
ASTM E1012-2005 Standard Practice for Verification of Test Frame and Specimen Alignment UnderTensile and Compressive Axial Force Application
ISO 6934-4:2020 Steel for the prestressing of concrete - Part 4: Strand
ISO 606:2004 Short-pitch transmission precision roller and bush chains, attachments and associated chain sprockets
ISO 10190:2008 specifies the dimensions and mechanical properties of roller and bush chains
ISO 15654:2004 Fatigue Test Method for Transmission Precision Roller Chain
ISO 15630-3:2019 Steel for the reinforcement and prestressing of concrete - Test methods - Part 3: Prestressing steel
ISO 15630-1:2019 Steel for the reinforcement and prestressing of concrete - Test methods - Part 1: Reinforcing bars, wire rod and wire
ISO 4965:1979 Axial load fa-tigue testing machines - Dynamic force calibration - Strain gauge technique
ISO 204 Metallic materials—Uniaxial creep testing in tension—Method of test
Note: Only the functions and performance of the listed standards that are compatible with the ordered high-frequency fatigue testing machine are satisfied, that is, the satisfaction of the functions and performance is related to the selected host, fixture and accessories, and also to the tested sample。
4. Application fields:
Widely used in aerospace, automotive manufacturing, machinery manufacturing, petrochemical, material science and other industries of quality inspection (QC), quality analysis (QA) and research and development (R&D) Field。
5. Technical parameters
HFT504 | HFT105 | HFT255 | HFT505 | HFT106 | |
Maximum test force | 50kN | 100kN | 250kN | 500kN | 1000kN |
Maximum average test force | ±25kN | ±50kN | ±125kN | ±250kN | ±500kN |
Maximum circulating force | ±25kN | ±50kN | ±125kN | ±250kN | ±500kN |
Maximum deformation* | 4mm (±2mm) | 4mm (±2mm) | 4mm (±2mm) | 2mm(±1mm) | 2mm (±1mm) |
Frequency range** | 50~320Hz | 50~320Hz | 50~285Hz | 50~285Hz | 50~285Hz |
Frequency adjustment series | 6 | 6 | 8 | 8 | 8 |
Number of light bars directed | 4 | 4 | 4 | 4 | 4 |
Number of drive screws | 2 | 4 | 4 | 4 | 4 |
Screw type | Precision ball screw | Precision ball screw | Precision ball screw | Precision ball screw | Precision ball screw |
Drive voltage regulation | 自动 | 自动 | 自动 | 自动 | 自动 |
Sampling and control frequency (kHz) | 10 | 10 | 10 | 10 | 10 |
PC communication port | 网口 | 网口 | 网口 | 网口 | 网口 |
Sample holding method | Hydraulic automatic, manual thread | Hydraulic automatic, manual thread | Hydraulic automatic, manual thread | Hydraulic automatic, manual thread | Hydraulic automatic, manual thread |
Frame rigidity (kN/mm) (at 1000mm) | 180 | 380 | 380 | 980 | 980 |
Number of driving channels | 1 | 3 | 3 | 3 | 3 |
Full frequency and full load | 达到 | 达到 | 达到 | 达到 | 达到 |
Stress coaxiality | Ordinary type: better than 8%, precision type: better than 5% | Ordinary type: better than 8%, precision type: better than 5% | Ordinary type: better than 8%, precision type: better than 5% | Ordinary type: better than 8%, precision type: better than 5% | Ordinary type: better than 8%, precision type: better than 5% |
Zero drift | ±1.0% | ±1.0% | ±1.0% | ±1.0% | ±1.0% |
Relative resolution | 0.50% | 0.50% | 0.50% | 0.50% | 0.50% |
Static test and average force control | Ac drive | Ac drive | Ac drive | Ac drive | Ac drive |
Zero relative error of force measuring system | ±0.5% | ±0.5% | ±0.5% | ±0.5% | ±0.5% |
Relative error of static force indication value | Normal type: ±1.0%, precision: ±0.5% | Normal type: ±1.0%, precision: ±0.5% | Normal type: ±1.0%, precision: ±0.5% | Normal type: ±1.0%, precision: ±0.5% | Normal type: ±1.0%, precision: ±0.5% |
Repeatability of static force indication | 1.00% | 1.00% | 1.00% | 1.00% | 1.00% |
Relative error of static force indicator | Normal type: ±1.5%, precision: ±1.0% | Normal type: ±1.5%,精密:±1.0% | Normal type: ±1.5%, precision: ±1.0% | Normal type: ±1.5%,精密:±1.0% | Normal type: ±1.5%, precision: ±1.0% |
Relative error of indicating cyclic force range | Normal type: ±3.0%, precision: ±2.0% | Normal type: ±3.0%, precision: ±2.0% | Normal type: ±3.0%, precision: ±2.0% | Normal type: ±3.0%, precision: ±2.0% | Normal type: ±3.0%, precision: ±2.0% |
Cyclic force range indicates repeatability | Normal type: 3.0%, precision: 2.0% | Normal type: 3.0%, precision: 2.0% | Normal type: 3.0%, precision: 2.0% | Normal type: 3.0%, precision: 2.0% | Normal type: 3.0%, precision: 2.0% |
Relative error of indicating peak value of cyclic force | Normal type: ±3.0%, precision: ±2.0% | Normal type: ±3.0%, precision: ±2.0% | Normal type: ±3.0%, precision: ±2.0% | Normal type: ±3.0%, precision: ±2.0% | Normal type: ±3.0%, precision: ±2.0% |
Repeatability of peak indication of cyclic force | Normal type: 3.0%, precision: 2.0% | Normal type: 3.0%, precision: 2.0% | Normal type: 3.0%, precision: 2.0% | Normal type: 3.0%, precision: 2.0% | Normal type: 3.0%, precision: 2.0% |
The cyclic force range of 10 min indicates the value variability | Normal type: 3.0%, precision: 2.0% | Normal type: 3.0%, precision: 2.0% | Normal type: 3.0%, precision: 2.0% | Normal type: 3.0%, precision: 2.0% | Normal type: 3.0%, precision: 2.0% |
Variation of 10 min cyclic force peak value | Normal type: 3.0%, precision: 2.0% | Normal type: 3.0%, precision: 2.0% | Normal type: 3.0%, precision: 2.0% | Normal type: 3.0%, precision: 2.0% | Normal type: 3.0%, precision: 2.0% |
Counter capacity | ≥9×109 | ≥9×109 | ≥9×109 | ≥9×109 | ≥9×109 |
Loading rate adjustment range (mm/min) | 0-550 | 0-450 | 0-550 | 0-250 | 0-250 |
No load maximum displacement rate (mm/min) | 800 | 700 | 880 | 500 | 500 |
Static force control range (MPa/S) | 0~30 | 0~30 | 0~30 | 0~30 | 0~30 |
Repeated positioning accuracy (μm) | ±8 | ±8 | ±8 | ±8 | ±8 |
Whether the motor has braking function | 是 | 是 | 是 | 是 | 是 |
Static force loading | Servo motor | Servo motor | Servo motor | Servo motor | Servo motor |
Dynamic force loading | Wear-free electromagnetic drive | Wear-free electromagnetic drive | Wear-free electromagnetic drive | Wear-free electromagnetic drive | Wear-free electromagnetic drive |
Noise (dB) | ≤90 | ≤100 | ≤110 | ≤115 | ≤115 |
Weight (without fixture) (kg) | 1800 | 4200 | 4500 | 10500 | 20000 |
Main machine dimensions (mm) (length (depth) X width X height) | 660x915x2500 | 685x1130x2820 | 820x1150x3130 | 1350x1350x3600 | 1550x1700x4200 |
Control cabinet size (mm) (including computer) (L (D) X W X H) | 450x800x1200 | 550x900x1500 | 550x900x1500 | 550x900x1500 | 550x900x1500 |
* For the factory standard deformation, if you need larger or smaller, need to customize。
** For the factory standard frequency range, if you need larger or smaller, need to customize。
*** The dimensions are the net dimensions of the main engine, and the dimensions after installation should be combined with the height of the spring。
注:
1, the picture is for reference only, Wanji reserves the right to continuously update the product, the final subject to the physical;
2, according to the different configuration of the ordered product, the performance and function of the product will be different。
It is mainly used to test various technical parameters of resistance to fatigue fracture of various metal materials and composite materials