JB-300B Semi-automatic impact testing machine

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Product Description:

Main functions:

   The machine can be used for the determination of anti-impact performance of metal materials when it is under dynamic loading, thus judged the quality of materials under dynamic loading. It is applicable for the laboratory, which does continuous compact tests, metallurgy, machinery manufacturing, and other industries.

Product features:

   The machine with the semi-automatic control, operates easily and efficiently. It uses the electric control the knife of impact to raise, impact and fall. Moreover, the machine can use the remaining energy to raise and fall to prepare the next test automatically after thrusting specimens.

Main technical specifications:

Impact energy(J):  300
Impact speed:  5.2m/s          
Raising angle of pendulum:  150°
Span of support (mm):  40
Round angle of support:  R1.0-1.5mm  
Round angel of impact knife:  R2.0-2.5mm
Distance between pendulum center and impact point(mm):  750
Dimension of sample(mm):  10×10×55  
Power supply:  380V±10%50Hz  
Overall dimension(  L×W×H)mm:2124×600×340
Weight:  450kg

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Q:What are the differences between axial pressure gauges and radial pressure gauges?
Very simply. The thread that is mounted behind the surface is called an axial pressure gauge; the thread below the surface is called the radial pressure gauge.
Q:What's the difference between radial pressure gauges and axial pressure gauges? Which one has the best edges?
In the case of installation, the center line and the surface of the joint are vertical, while the center of the joint and the surface of the joint are horizontal! There are three kinds of edges, the front, the middle, and the back! Both axial and radial edges can be used as customer requirements and installation occasions!
Q:How to adjust the pressure switch of the electric pressure cooker?
E4 pressure switch failure 1. pressure switch contact pressure is lower than 2. 0.04MP wet oxidation is controlled for the first case the oxidation processing clean; second cases had to adjust the pressure switch, the method is as follows: adjustment method of pressure cooker electric pressure switch has two kinds of methods, 1. have pressure gauge: adding an appropriate amount of water into the pot. Cover the pot boil, remove the pressure relief valve on the pressure gauge, such as meter readings to 0.068MP adjust the pressure switch to just disconnect the fixed with glue adjustment screw. 2. have no pressure gauge, do not remove the pressure relief valve, the pressure relief valve to the maximum, so just began to leak, immediately adjust the pressure switch to jump, then clockwise to spin again a little bit on the line. Remember to screw the screws with glue.
Q:What is the coefficient of error for the 2.5 grade pressure meter?
The calculation formula is that: the pressure of the table - pressure of the standard table / standard meter, the pressure *100% is less than or equal to 2.5% to be qualified.
Q:What does "Y" mean? What does "Z" mean?
Y- stands for the pressure gauge, and Z- stands for the vacuum meter.
Q:What is the function of the pressure gauge bend?
Buffer instantaneous high pressure, protect pressure gauge.
Q:What's the pressure gauge in the snow?!
The refrigerant (freon refrigerant is a plus) to many professional personnel to operate the number of horses is such a 23= 26=1.25 (a horse) horse horse horse 32=1.5 25=1.75 (1.5 HP) 51=2.5 (2 HP) 7=23.5 horse horse (3 horses) is now commonly used in air conditioning.
Q:How can the frequency converter and the electric contact pressure meter be connected?
Electric contact pressure gauge: its junction box has four terminals (GB): the top is the upper limit, the second is the public end, the third is the lower limit, the fourth is the ground end, usually not. The middle of the needle is ordinary needle is a high one low middle high touch pointer newspaper report will form a loop to alarm or stop reporting low as the actual pressure in the lower when the public terminal is connected with the lower limit, and the upper limit is disconnected, the actual pressure between the upper and lower limits, the common end and the upper limit, lower limit are disconnected. When the actual pressure is above the upper limit, the upper limit is connected and the lower limit is broken. The electric contact is used to control the upper and lower pressure, the upper pointer is the upper limit, the following pointer is the lower limit, and the middle black pointer indicates the actual pressure value. The upper limit pointer can be reversed by hand, and the line should be positioned with a screwdriver. Its junction box has four terminals (GB): the top is the upper limit, the second is the public end, the third is the lower limit, the fourth is the ground end, generally not.Specific how to meet the inverter, it depends on what inverter you are, but also changes in the parameters of the inverter, through some contactors, such as closed loop control, frequency converters, and more used for constant pressure water supply and other fields.
Q:Will the pressure gauge of the fire extinguisher leak?
The pressure gauge of the extinguisher won't leak.Domestic fire extinguishers generally pressure gauges are divided into three grades, both three colors.1, when the pressure gauge pointer refers to the red part, indicating that the pressure in the bottle is not enough, the fire extinguisher can not be used properly.2, refers to the yellow part, indicating that the pressure is too large, prone to danger.3, when you refer to the green part, it shows that the fire extinguisher is normal.
Q:What do you think of the tire pressure gauge?
First look at the pressure gauge pointer is in the zero state, and then the dust cap filled holes removed, the barometer component and the air charging docking with connectors, and then press the direction vertical air charging, you can display the numerical pressure gauge reading.

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