Four-piece metal impact test, one-stop solution for impact toughness testing.

The whole set of equipment includes four core units: impact testing machine, impact sample projector, electro-hydraulic notch broaching machine and impact test cryogenic tank. It strictly follows GB/T 229 "Metal Charpy Pendulum Impact Test Method" standard, covering the requirements of impact toughness testing of the whole chain in metallurgy, machinery manufacturing, pressure vessels, rail transit and third-party testing laboratories, and realizes the closed loop of standardized, high-precision and automatic impact test.

I. Electro-hydraulic Broaching Machine for Impact Specimen-Source Guarantee for Precision Preparation of Standard Specimen Notch
As a special sample preparation equipment for impact samples, the V-shaped and U-shaped standard notches can be processed by using hydraulic uniform broaching structure and replacing the matching broaches. The broaches are made of high-hardness high-speed steel, which has smooth cutting and high forming accuracy. The running noise of the whole machine is low, and the sample is firmly clamped, which effectively avoids the problems caused by manual processing, such as gap size deviation, surface burr, root arc substandard, etc., and eliminates the interference of sample processing errors on impact data from the source, and the batch sample preparation is stable and efficient, which is suitable for the processing of 55×10×10mm standard impact samples.

Second, the impact sample projector-optical accurate calibration of notch size
Special optical inspection instrument can visually observe the geometric shape of the notch of the sample with 50 times magnification projection, which can accurately verify the key indexes such as notch depth, root arc, included angle and surface smoothness, and quickly screen out the unqualified samples. Eliminate the distortion of test results caused by notch processing defects. It is a necessary sample quality inspection equipment for third-party testing and quality inspection laboratories, with simple operation and intuitive reading, ensuring that each sample to be tested fully meets the requirements of national standard processing tolerance.

III. Low temperature tank for impact test-temperature control unit for simulating extreme low temperature conditions
Using cascade compressor refrigeration system, wide temperature control range, filling low-temperature special ethanol cooling liquid in the tank, and matching with circulating stirring device, the sample has uniform constant temperature and minimal temperature field fluctuation; Equipped with special sample hanging basket, it has the functions of temperature digital display, overtime alarm and multiple overload protection. Samples can be placed in batches for long-term constant temperature insulation, and the low-temperature impact toughness test can be carried out perfectly, which is used to evaluate the cold brittleness tendency of steel and weld materials in low-temperature environment and meet the requirements of low-temperature performance testing of pipelines, storage tanks and construction machinery.

Four, pendulum impact testing machine-impact toughness core testing host.
The high-rigidity cast steel fuselage of the whole machine is equipped with automatic swing-up, impact and swing-up control system and closed safety protection net, which is safe and convenient to operate. Depending on the potential energy of the pendulum to impact the sample, the impact absorption work is automatically collected to generate an energy-time impact curve; Multi-specification pendulum is optional, covering the common measuring range of 150J/300J/450J, compatible with normal temperature and low temperature test modes, and can accurately determine the impact fracture resistance and ductile-brittle transition temperature of metal materials, which is the data output core of the whole impact test system.

Synergistic advantage of whole set of equipment
Closed-loop process: hydraulic broaching machine sample preparation → projector quality inspection and screening → constant temperature treatment of low temperature tank → impact testing machine detection, the whole process is standardized and complete, and there is no equipment adaptation barrier;
Accurate data: strictly control errors from sample processing, size verification, temperature control to impact detection, and the repeatability and stability of the test meet the requirements of CNAS detection and certification;
Efficient and worry-free: integrated complete scheme, no need to separately select accessories, suitable for batch procurement of newly-built material mechanics laboratory and quality inspection station of production line;
Widely used: it is suitable for testing the impact toughness of ferrous materials such as carbon steel, alloy steel, cast steel and welded joints of pressure vessels, covering industries such as pressure vessels, ships, bridges, wind power and construction machinery.