XJCJ Falling Mass Impact Testing Machine

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1. Functions：

It is used for the plastic pipe, board and goods to do the impact test , to praise the materials resistant outside force impact performance. The machine controlling parts adopt the numerical control technique. It can number preset and display the impact height, automatic return to zero, rising hammer, dropping hammer, impact and can effectively prevent the twice impacting. It adopts the distyle structure, the structure is compact, energy lost is small, and testing speed is quick.

2. standards-compliant：

GB/T 14152 ISO3127 BS EN1411

BS EN744

3. Technological indicators：

Impact height: 0-2000mm,±2mm

Overall dimensions: L750mm×W550mm×H3500 mm

Energy losses: 0.25%

Masses of strikers: 0.25-15kg, permissible tolerance shall be ±0.5%

Nose and masses of striker: depending on customers standards

Rising speed: 12m/min

Anti-rebound catching rate: 100%

XDK Low Temperature Refrigerator

A. Product Introduction

It is used for the plastic pipe, sheet and profiled shock resistance performance test low temperature management, which consists of refrigerator and control instrument. Control apparatus is composed of digital temperature sensor, the temperature control circuit, instantaneous power-off protection circuit and LED digital tube display panel meter. It achieve the real-time display, temperature control, measurement, alarm and other functions. Has the advantages of high control accuracy, convenient operation etc

B. Accord with the standards:

GB/T14152-2001、GB/T1043、GB/T1843、GB/T8814、GB/T15558.1和JG3050

C. The main technological Parameters

a. Temperature control range: - 20-0℃;

b. Control temperature accuracy: setting value +1℃

c. Use the LED numeral display

d. Power : 220V+10%, 15A.

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's on the pressure gauge or something on the barometer? Which one told me?: Bar is a unit of pressure 1bar=100000, Pascal, and another one of our common KGF is almost 1:1.PSE I guess you're wrong. It should be psi. It's the British unit of pressure. It's basically not used in countries with SI units

Q: The indicator of the extinguisher pressure gauge points to green, indicating whether the extinguisher pressure is normal or not?: The pressure gauge pointer to the green is normal, below this pressure into the shortage of red belonged to the inflation pressure.

Q: What is the difference between 380V and 220V electric contact pressure gauge?: The difference between the 380V and 220V electric contact pressure gauges is that the rated voltage of the action coil is different. The rated voltage of the action coil of the 380V electric contact pressure meter is 380V, which can only be connected with the 380V voltage and is not connected to the 220V. 220V electric contact pressure meter action coil rated voltage is 220V, can only meet the 220V voltage, access to 380V will burn the coil.The rated voltage of the coil is 380V, the cross-sectional area of the conductor should be smaller, the coil number of coils should be more, and the operation current should be smaller. The rated voltage of the coil is 220V, the cross-sectional area of the conductor should be larger, the number of coils should be less, and the action current should be greater.

Q: 250MPa calendar force, 150MPa verification point when the step-up is 148MPa, when the buck is 149MPa, please tell me how to calculate the value of error, return error is how to count? Thank you: Pressure meter return error: under the same conditions, the measured value is constant, the measuring instrument travel direction is different, the absolute value of the difference of its indication value. Note: return error is also called lag error."The return error" and "dead zone": JJF1001 "general terms and definitions for measurement", the term "no return error", but in 7.13 another definition of the term "dead zone" to describe "causing maximum variable interval dynamic measuring instrument in response to changing incentives". Therefore, return error is an index to measure the response characteristics of equipment".Does the return error accumulate? Take the positive and negative rotation of the motor as an example, the return error of the transmission mechanism should not be accumulated once and for all. In other words, back and forth movement many times, return error or fixed interval, does not increase.Application in the motor: the motor itself is no return error, how much encoder reads, how many pulses the stepper motor turns, and the servo system is usually higher than the stepper motor accuracy. The return error is generated by the drive mechanism, such as the screw rod connected on the output shaft of the motor. Therefore, the servo system can accurately control the motor, can't handle the return error. Therefore, the zero bit switch can eliminate zero return error in the course of motion, in addition to the zero power seeking of the incremental encoder. Even if the absolute encoder does not require power on and zero, the photoelectric switch can also be used to eliminate the return error. When there is no return error in the direction of return, it is necessary to set a zero position switch at both ends, so that the motor is backward to zero in this direction, and then the zero is used to measure the movement displacement.

Q: How to connect the three terminal points of the remote pressure gauge?: The three terminals of the remote pressure gauge are arranged like this, from top to bottom: 0 bit, 5V bit, middle position (that is, pointer moving contact). The 0 bit provides the pressure feedback signal with the center.

Q: Why does the internal surface of the pressure gauge contain oil?: In the pressure inside the shell injection liquid, usually oil. Liquid can play a strong buffering effect is obvious, so it can reduce the fluctuation / external vibration influence, caused by the pressure measurement reading. Through to the table filled with oil, but also on the machine parts for lubrication, while extending the instrument the service life of the pressure gauge. General pressure gauge is more expensive than ordinary. I will be in the company to purchase this kind of accessories. So understanding. Please refer to.

Q: What is the PSJ of the pressure gauge?: Is that PSJ, not PSI?If it is "PSI", the English word "pounds per square inch" translates into pounds / square inches, a pressure unit used in European and American countries.Conversion relationship is: 1psi=6.895kPa, 1Mpa=145Psi.

Q: What are the main technical parameters in the selection of pressure gauges? Thanks: The selection principle is as follows:TypeThe selection of instrument type must meet the requirement of process production. For example, whether remote automatic recording or alarm; by nature side medium (such as the temperature of the measured medium height, viscosity, corrosive, flammable and explosive, dirt etc.) whether to put forward special requirements on the instrumentation, on-site environmental conditions (such as temperature, humidity, magnetic field strength and the vibration of the instrument) type etc.. Therefore, according to the requirements of the process, the correct selection of instrument type is an important prerequisite to ensure the normal operation of the instrument and safety in production.Two, measuring rangeAccording to the maximum and minimum values of the measured parameters, the upper and lower limits of the instrument can be calculated, and the measuring range of the instrument can not be directly taken as the measuring range of the instrument. When we select the upper limit of the scale of the instrument, we should select it in the standard series stipulated by the state. China's pressure gauge measurement range standard series are: -0.1-0.06,0.15; 0-1,1.6,2.5,4,6,10X10 "MPa" (where n is a natural integer. Can be positive or negative).Three, accuracy levelAccording to the maximum absolute error permitted by the process and the best range of the selected instrument, the maximum reference error allowed by the instrument is calculated, and the accuracy of the instrument is determined in the precision grade specified by the state. Generally speaking, the more sophisticated the instrument is, the more accurate and reliable the measurement result is. But you can not believe that the higher the accuracy of the instrument used, because the more sophisticated instruments, the more expensive the general price, the more difficult to operate and maintenance.