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: Is the gasket sealed at the pressure gauge connection?: Gaskets must be added to the pressure gauge joint.The pressure gauge has a lot of material, but the most used in stainless steel, there are some pressure gauge interface material of copper alloy, mainly bronze (copper and tin alloy) and brass (copper zinc alloy), copper (copper nickel alloy).The spring tube of the ordinary pressure gauge is mostly made of copper alloy (high pressure alloy steel), but the material of ammonia pressure gauge and spring tube is made of carbon steel (or stainless steel), and copper alloy is not allowed. Since ammonia produces chemical reactions with copper, it will explode, so ordinary pressure gauges cannot be used for ammonia pressure measurements.

Q: Fix a false SUPOR electric pressure cooker E4 fault, after inspection, the pressure switch is not in good contact. Replacement repair, but do not know how to adjust, worry about not repair to the original machine state will explode! Ask the heroes what coup adjustment!!!: Debugging method: remove the plastic bottom cover of electric pressure cooker, the pressure detecting switch of electric pressure cooker replaced, with screwdriver to adjust when the switch is closed completely, just when the counter clockwise N circle, the amount of water in the pot (about 500ML), installed inside the pot and tighten the lid, small iron the exhaust port also should be installed. The electric heating to boil water for a while, see the smoke vapor from the exhaust hole, and for a while, a lot of smoke and steam, issued a hissing sound, then to unplug the power line from the bottom of the pot, carefully put the pressure detecting switch clockwise slowly adjust, immediately stop when the switch is off. Then, on the inner pot of electric heating to boiling water, I saw a slight water vapor vent out, over a period of time to the state of insulation. (picked out on the Internet. I wonder if it's testing.)

Q: What is the state of the warranty period for the ordinary pressure gauge?: The warranty period is stipulated by the manufacturer, usually 1 years.Since pressure gauges are measuring instruments, the importance of the pressure gauges should be graded according to ABC, and the calibration period should not exceed half a year.

Q: For example, I want to stop the pump before the pump pressure signal and now, through the pump pressure signal, adjusting the frequency of the pump, to ensure the pump pressure at a fixed value, it will the pressure signal through the pressure transmitter is good or remote pressure gauge? Shall I use the remote pressure gauge before pumping and use the pressure transmitter after the pump? Is the electric contact pressure meter reliable?: The remote pressure gauge is suitable for measuring the pressure of liquid, steam and gas which can not corrode the steel and copper alloy.The instrument is provided with a slide line resistance transmitter, the measured value to the value of electricity to two meters away from the measuring point, to realize centralized monitoring and remote control, the instrument can also indicate the pressure, in order to facilitate the on-site process inspection.The meter consists of a spring tube, a pressure gauge, a slide wire, a resistance transmitter, etc..The function principle of the mechanical part of the remote pressure gauge is the same as that of the common spring tube pressure gauge.Because the resistance transmitter is arranged on the gear drive, so when the fan gear shaft gear transmission mechanism of deflection, rotating arm resistance transmitter (brush) corresponding to the deflection due to sliding on the resistor, brush, change make the changes in the measured value of pressure change as the resistance value, and to the two instrument, indicating a corresponding reading value. At the same time, the primary instrument also indicates the corresponding pressure value.Two kinds of pressure transmitter pressure of the measured medium into high and low pressure chamber two, role in the delta element (i.e. sensitive element) on both sides of the diaphragm, by filling liquid on both sides is transmitted to the measuring diaphragm and the element in isolation. Measure the electrodes on the diaphragm and the insulation plate on both sides to form a 4-20mA standard signal output by the capacitor and send it to the program control system.

Q: How to control three-phase motor with electric contact pressure gauge: Electric contact pressure gauge controls contactor, contactor controls motor.

Q: What is the actual value of the pressure gauge mounted on the pressure vessel?: In vessel pressure, Qingdao, Jin Mu

Q: The role of the pressure gauge on the train: The pressure gauge shows the air pressure of the train brake hose. The air pressure for safe operation is 600KPa units, which is kPa

Q: What is the calibration cycle for the pressure gauge / thermometer / flowmeter? Is there a standard to check?: Provisions concerning the period of verification:1 national inspection category (a total of 4 categories: trade settlement related instruments, security related instruments, medical, health related, environmental related) measuring instruments in accordance with national regulations, and strictly enforced. For 1 years, but also for half a year.2 non - strong measuring instruments, the use of units generally can determine its own calibration cycle. Can also be regularly checked, or one-time verification. Generally ranging from 1 to 3 years. Just do it yourself. If it is enterprise, it is better to use document to stipulate.

Q: Are you talking about using a gold contact? I'm a small relay for 24V. Do you need a gold contact?Let's talk about it.: I don't think it's necessary to use gold for contacts.1. The action of a contact on a pressure meter is equivalent to a switch used to conduct or disconnect the circuit. It does not require a power supply. The maximum operating voltage is 380V, and it can also be used for 220V or 24V (including AC and DC).2. Electric contact pressure gauge in the work process, will not contact in contact contact, due to voltage, spark will contact between the spark can burn contacts, lead oxide, so the electric contact pressure gauge work after a period of time will produce the phenomenon of bad contact, and can work normally after cleaning contact.3. In order to make the electrical contact work long time, it is important to note that the work power of the coil of the small relay in the back shall be controlled below 30W, otherwise it will burn up easily (contact power rating 30W).4. What material to choose contact is to consider comprehensively, choose pure gold or pure silver, only contact resistance is small, other aspects will not do.Our company produces a variety of electric contact pressure meter, suitable for a variety of industrial and mining use, interested can go up to see.