An instrument that tests the impact resistance of metal materials and judges the toughness and brittleness of materials

JCW-300D microcomputer control pendulum type low temperature automatic impact testing machine for high stiffness host, computer control, automatic temperature control, automatic sample positioning, automatic measurement and recording of the testing machine, is currently a high level of domestic pendulum type low temperature impact testing machine
.
This series of impact testing machine is powerful, stable and reliable, accurate in testing and easy to
operate.
It is an ideal test equipment
for testing the impact resistance of metal materials under dynamic load and judging the toughness and brittleness of materials.
This series of impact testing machines can be widely used in scientific research institutes, testing institutions, colleges and universities, aerospace, military, metallurgy, machinery manufacturing, pressure vessels, ships, vehicles, bridges, wind power and other industries for precision material research, material analysis, material development, material selection, process improvement and quality control
。 Main technical parameters: (1) Main machine and attached parameters: Project JCW-300D impact energy 300J effective use range 150 (20%-80% FS) pendulum pendulum pre-launch angle 150 ° pendulum axis axis to strike center distance 750mm pendulum hammer weight Kg 21.
87 pendulum torque N·m160.
7696 impact speed 5.
24m / s anvil span 40mm anvil seat round angle radius R1-1.
5mm anvil inclination angle 11 ° ± 1 ° impact blade angle 30 ° ± 1 ° Impact edge curvature radius 2mm impact edge 2mm-2.
5mm8mm impact edge 8mm±0.
05mm8mm impact edge shoulder angle radius 0.
1mm-1mm8mm impact edge width 4mm ±0.
05mm impact blade width 10mm-18mm impact blade thickness 16mm Meet the spec specifications (mm) 10×10×55mm Technical characteristics and advantages: 1.
The integrated design of the main frame and the base, the overall casting process, overcomes the weak link at the split connection of the fuselage base, The overall rigidity and stability are greatly improved, and the stability
of the test is improved.
The body absorbs less energy, and the measurement results are closer to the actual absorption work
of the specimen.
More suitable for high energy shocks; 2.
Integrated structure, to avoid the split structure rack base connection assembly error; 3.
The main machine adopts high stiffness design, and each stressed component is analyzed and designed by finite element, and is precisely processed and tested; 4.
The machining center processes the front and rear bearing holes and anvil mounting positions at one time to ensure symmetry between the front and rear bearing holes and ensure that the distance from the pendulum axis axis to the strike point is accurate; 5.
Double support frame structure, pendulum spindle adopts simple support beam support, reasonable load distribution, and reduces the lateral flutter of the pendulum during impact; 6.
The force of the front and rear bearings of the swing shaft is balanced, which reduces the friction and also reduces the impact damage to the bearing; 7.
Imported high-precision bearing, small friction, impact resistance, long life; 8.
The swing rod is a thick-walled seamless tube, with high stiffness, no deformation, and reduced energy absorption; 9.
Pendulum round hammer body three-dimensional software accurate design, the center of gravity is accurate; Circular structure, effectively reduce the air resistance energy loss during impact; 10.
Special materials to make impact blade, high hardness, small deformation, impact resistance; 11.
Equipped with 2mm, 8mm two specifications of impact blade, the use of screw pressing fixed impact blade, easy to replace; 12.
Special materials and special process processing specimen anvil (specimen support jaw), to ensure that the blade angle is strong and rounded, flat and arc tangent line transition, impact resistance and wear resistance; 13.
The use of two-stage geared motor for the hammer power, large torque, no slippage, low
noise.
Geared motor introduced into Germany technology manufacturing, reliable performance and durability; 14.
The electromagnetic clutch produced by the introduction of foreign technology, suction, separation is rapid, no slippage; 15.
Operation control through PLC (Panasonic Japan) system, automatic control of the whole test process of swing, swing, impact, swing, swing, reliable operation, and greatly reduce the electrical failure rate; 16.
The pendulum is controlled by the PLC according to the preset angle, the positioning is accurate, and the initial impact energy is constant; 17.
The hanging pendulum device adopts hydraulic buffer mechanism (technology), and the hanging pendulum is smooth and non-jittery, avoiding the impact and damage of the hanging and dismounting mechanism; 18.
Electric drive swing shock, clean and sharp, to ensure that the initial impact energy and initial speed are not affected; 19.
After the impact is completed, the remaining energy is used to automatically hang again, prepare for the next impact, and improve work efficiency; 20.
The initial energy level can be adjusted by replacing the pendulum to expand the scope of use; 21.
Low temperature system: (1) JCW-300D: the use of cascade compressor and mixed freon refrigeration, refrigeration chamber using alcohol circulation refrigeration, the average cooling effect is better, while reducing the constant temperature time, improve the refrigeration efficiency; To avoid the previous refrigeration chamber using dry cooling, it is necessary to meet the relevant requirements of the country for refrigeration through long-term insulation, and the lower temperature can reach -60 ° C
.
Automatic temperature control, temperature control accuracy up to ±1 °C
.
Automatic insulation, automatic alarm
.
The compressor is selected from the original brand machine; (2) The low temperature chamber adopts a special up-down electric heating plate and refrigeration device to form a temperature control system, and the low temperature can be accurately controlled by PID adjustment (the temperature range can be arbitrarily set to control the temperature value); (3) The introduction of foreign technology and special processes in the cryogenic room, the separate structure, the sample box part only circulates alcohol as a refrigeration auxiliary device
.
The refrigeration chamber is individually placed and removable
.
The specimen room adopts the upper clamshell structure, which can effectively prevent the stuck sample caused by the sample feeding process, the sample preparation is not in place, etc.
, and effectively prevent the rust or scratch in the specimen box due to the long-term low temperature specimen, which is easier to clean and troubleshoot
.
Due to all kinds of problems in the test box, the operator can handle it by himself, without the need for professionals to disassemble and repair on the spot, saving unnecessary waiting time and greatly reducing the after-sales service cost
.
(4) Before the test starts, through continuous electric heating plate heating, the water vapor in the cooling chamber can be dried first to avoid freezing the sample; (5) The interior of the low greenhouse adopts oxidation resistance, fast temperature conduction and durable copper specimen box; (6) The cooling chamber can place up to 20 specimens at a time (7) The use of a thickened insulation layer is conducive to cooling and insulation, but also saves energy; (8) The shell of the cryogenic system is made of stainless steel, which is corrosion proof and beautiful
.
22.
Pneumatic sample
delivery.
After the specimen is cooled to the set temperature, the sample is started, and the powerful pneumatic sample feeding device quickly sends out the specimen for impact testing
.
Fast and accurate; 23 .
A special structure is adopted at the place where the specimen passes, so that the specimen can move reliably in the low-temperature room and do not jam the specimen; 24.
Automatic secondary positioning by pneumatic mode, accurate positioning; 25.
The main machine and the sample feeding system can be operated through the microcomputer interface; 26.
Through the accurate test angle of the high-precision photoelectric encoder, the computer calculates the impact absorption energy, which greatly improves the test accuracy of the impact energy; 27.
Energy display mode: dial and microcomputer display, the results can be compared with each other; 28.
The software is designed with automatic calibration function, which can test the friction energy loss and air resistance energy loss; 29.
Configure the specimen automatic output mechanism
.
After the impact is completed, according to the preset criteria, the measurement and control system can automatically determine whether it is qualified and automatically pick it out separately; 30.
Independent electrical control cabinet, strong and weak electricity is completely isolated, reduce interference; 31.
With a safety pin, the safety pin automatically pops out after the pendulum rises to the predetermined position to prevent accidents caused by the accidental fall of the pendulum; 32.
The whole machine is equipped with a split combination type can open the fully enclosed protective cover, aluminum alloy tempered glass structure, safe and beautiful; Set up the access control switch, only the door can be closed to carry out the impact, play a safety role; Tags:Microcomputer controlled pendulum type low temperature automatic impact testing machine