JB-300B Semi-automatic impact testing machine

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Ⅰ、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.

Ⅱ、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.

Ⅲ、Main technical specifications:

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

Q:How does the fire pump pressure meter work?: Fire pump pressure meter work:1, the fire pump outlet pipe pressure gauge (in the pipeline and pipeline pump lift check valve between the pump running only) to show the pressure value, to test the pump outlet pressure and pump running out of water.2. The pressure gauge on the fire main pipe acts as a check on the pressure of the fire system.3, the highest point of the fire pipe (that is, the most adverse point), the role of the pressure gauge to check the most unfavorable point, hydraulic pressure value.

Q:What is the measurement error of a pressure gauge?: Full scale range multiplied by accuracy, multiplied by temperature correction factor

Q:What's the meaning of diaphragm pressure gauge YTP-100?: Refers to the dial diameter of 100

Q:Under normal circumstances, use absolute pressure gauges to measure: The atmospheric pressure of the environment is approximately equal to 0.1MPa (1 kg per square centimeter, also known as 1 kg pressure).The gauge is to a pressure of 0 to calculate the pressure.Absolute pressure is the absolute pressure measurement. The pressure is measured at 0 under the vacuum. The absolute pressure in the atmospheric environment is 0.1MPa (1 kg per square centimeter). Absolute pressure gauge pressure = +0.1MPa. The use of the situation, according to the needs of the selection, the general situation is the use of absolute pressure tableTechnical parameters and requirements of pressure gauges:Absolute pressure gauges have nothing to do with atmospheric pressure fluctuations. Absolute pressure gauges are suitable for measuring gas and liquids.Nominal diameter: Phi 70 mm, 110 mm, 160 Phi 250mmAccuracy class: 0.4, 1, 1.6, 2.5Range: 0~16Kpa, 0~2500KpaInstallation: radial, axialProtection level: IP68Case material: 304SS, 316SS, carbon steel, aluminumMeasuring element material: 1, accuracy 0.4, copper alloy, 50CrV2, precision 1.0~2.5 grade copper alloy, 1Cr, 316SS and so onTable cover: safety glassPressure interface: radial or axial G1/2, M20*1.5, or specified special requirementsWorking pressure: the static load is 3/4 times of the upper limit of measurement, and the switching load is 2/3 times of the upper limit of measurement, and the short-time pressure is applied to the upper limit of measurement.Working conditions: ambient and medium temperature should not exceed -40~70 (class 0.4) C or C -50~160 (precision 1.0~2.5); relative humidity is less than 80%Remarks: the screws on the back of the case must not be loosened.

Q:Function of electric contact pressure gauge: The instrument comprises a measuring system, an indicating system, an outer shell, a magnetic auxiliary electric contact device, an upper and lower adjusting device and a junction box. When the measured medium pressure through the guide part into the measuring element, in which the pressure produces the corresponding displacement measuring element free end through the connecting rod drives the gear transmission mechanism, resulting in the dial on indication of the measured medium pressure value. At the same time, the instrument pointer drives the upper and lower limit movable arm and the set pointer (upper and lower limit) contacts to be disconnected or closed, so that the control circuit can be switched off so as to achieve the purpose of automatic control or sending letters to alarm.In general, the instrument can be used for automatic control or transmitting alarm by measuring and controlling the pressure system of the medium (or relay), which is used in conjunction with the corresponding electrical appliances (such as relays, contactors, etc.).

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:How to adjust the upper and lower limits of the upper and lower limit of the electric contact pressure gauge?: The electric contact pressure gauge is directly at the center of the table to the point where you need it. Contact red green is to stop the equipment start equipment you need to adjust according to the pressure, if we can use the special seismic AC electric contact pressure gauge, can only provide AC voltage, if you don't know is AC or DC on the choice of photo electric contact

Q:What is the working principle of the pressure gauge?: The models are different and the working principle is different1.WTY-1 - racy liquid pressure type thermometerThe model WTY liquid pressure thermometer utilizes the thermal expansion of a liquidA temperature, capillary, and Bourdon tube for measuring temperatureThe enclosed system is filled with a temperature measuring medium - liquid, when heatedWhen the temperature changes, the pressure in the closed system is due to the liquid bodyThe product changes as a result of a change in the curvature of the spring tubeThe displacement is generated by the end, and the pointer is driven through the connecting rod and the transmission mechanismTurn on the dial and indicate the temperature to be measured. This instrumentThe utility model has linear scale, small temperature package, fast reaction speed and sensitivityHigh, direct reading and other features, almost a collection of glass rod thermometer,Bimetallic thermometers, steam and gas pressure thermometersAdvantage, when the current application of the widest range of performance of the most comprehensive kindMechanical temperature measuring instrument.

Q:What's the function of the oil pressure gauge? Where does it fit?: For the vibration of the pump outlet, where the pressure meter for proof

Q:The outlet flow of centrifugal pump to adjust the valve closed small, vacuum gauge and pressure gauge change?: Centrifugal pump outlet valve closed, the flow becomes smaller, according to the performance curve of the centrifugal pump lift up, the outlet pressure will rise;After the flow rate decreases, the inlet velocity decreases, the pressure loss of the inlet pipe decreases, and the vacuum decreases.

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