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:The indicator of the extinguisher pressure gauge points to green, indicating whether the extinguisher pressure is normal or not?
Green indicates normal pressure; yellow indicates lack of pressure; please note that red indicates a severe lack of pressure
Q:There is no pressure gauge in the process of adding fluorine to the air conditioner
Air conditioning adding fluorine step and method -- air conditioning adding fluorine concrete method operation:1. Turn on the air conditioner;When the fluorine is added in summer, the air conditioner can be directly operated in the refrigeration mode. Because of the heating system can not add fluorine operation, so in winter, when adding fluorine, you should use the method of making the valve line, forcing air conditioning into the refrigeration.2. Connect the fluoride equipment;After the normal starting of the air conditioner, the fluorine adding equipment is connected from the process port of the low pressure valve of the outdoor machine. In this procedure, air and dirt in the fluoride pipe must be removed.3 、 pressure plus fluorine;Low pressure observation in summer, the ambient temperature of about 32 degrees Celsius, the pressure control at around 0.45MP;In winter, high pressure is observed during heating, and the pressure is stabilized at about 1.7MP.4, removal of fluoride equipment;In the condition of removing fluorine refrigeration equipment, nano machine tighten external seal; if remove equipment under the heating state, will cause a lot of freon leak.5. Complete with fluoride.For suspected leakage of air conditioning, the use of detergent bubble examination.
Q:What is the function of the pressure gauge bend?
The role of a pressure gauge:First, the formal name is called the tube pressure gauge pipe buffer, mainly reduce vibration and impact, but also to a certain effect on the high temperature cooling medium, to protect and reduce the pressure gauge pressure gauge temperature error. The damping screw at the orifice of the part of the pressure gauge has a throttling effect by reducing the flow area. The pressure gauge bends are mainly useful for medium pressure pulses. The utility model only buffers the impact and damage caused by the dynamic pressure on the dial plate, and improves the service life of the protecting pressure meter.Second, the pressure gauge bends can be known from the name of the pressure meter, the pressure gauge is to measure the pressure (positive pressure or negative pressure), that is, to reduce the pressure on the instrument damage, especially the positive pressure.
Q:Seismic pressure gauge compared with ordinary pressure is what, what is the scope of application
Seismic pressure gauges for environment vibration, the pulse of media tolerance, and the impact of a sudden unloading, the instrument is stable and clear. Widely used in machinery, petroleum, chemical, metallurgy, mining, power and other departments to measure the pressure of copper and copper alloys without corrosive medium.Shock proof pressure meter is composed of pressure leading system (including joint, spring tube, limiting screw), gear transmission mechanism, indicator device (pointer and dial) and the shell (including watchcase, table cover, table glass etc.). Vibration proof pressure gauge shell is airtight type structure, can effectively protect the internal parts from the environmental impact and pollution invasion. Vibration proof pressure gauge filled with damping liquid in the shell (usually silicone oil or glycerin) instrument, ripple resistance to working environment and reduce the vibration of medium pressure. The ordinary pressure gauge has poor seismic performance.
Q:The pressure gauge is red, yellow and green to indicate the pressure. When the needle points to the green area, what does it mean?
It means normal pressure, yellow means high pressure, red means low pressure and can't be used.
Q:What's the temperature of the refrigerant on the pressure gauge of the air conditioning refrigerator?
In order to observe whether the air conditioner or refrigerator is running properly, the pressure of the refrigerant and the corresponding temperature is one of the parameters.
Q:How do you recognize the pressure gauge?
To recognize the pressure gauge units, the general units are Mpa, mbar, bar, PA, and so on. Then see where the pointer points.
Q:How do I know the model of the pressure gauge?
The best consultation with manufacturers of pressure gauges, they will give you a professional answer, my home pressure gauge is Nanjing Wanda instrument factory, the use of sleep can also be, the price is not expensive
Q:What's the notation for a pressure gauge?
Y pressure gaugeZ vacuumW temperatureN shockP diaphragmS bimetalXC magnetic contactXC magnetic induction contactXG induction electric contactTZ resistor remote transmissionTT differential transmissionE film boxA ammoniaXD photoelectric contactSG inductance transmitterSS bimetallic single indicationT specialM diaphragmO oxygen useB stainless steelL thread typeF flange typeZ shockF corrosion resistanceFZ corrosion proofD positioningL needleSST pressure transmitterPD pressure relayCYS differential pressure gauge
Q:What is the green area of the pressure gauge on the extinguisher?
Generally, the pressure gauge GREEN indicates safety range, yellow means warning, red means danger. Green: safety range can be used; yellow: lack of pressure, need to add perfusion; red: too much pressure, dangerous, need immediate overhaul!

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