Once again, strongly recommend the nine-step walk-in environmental test box appearance maintenance method
Step-by-step environmental test outdoor watch repair method, Dongguan Haotian Xiaobian for everyone to analyze:
Method 1: Capacitor bypass method
When a circuit has an eccentric appearance, such as a display disorder, it can be determined by a capacitor bypass method that is somewhat faulty.
Method 2: Comparison method
The specific method is: let the faulty appearance and the normal appearance run under the same conditions, then look at the signals of some points and compare the two sets of signals measured. If there are differences, it can be judged that the problem is here. This approach requires the repair staff to have appropriate common sense and technology.
There are two different types of appearances, and one is functioning properly. Use this method to have the necessary equipment, such as a multimeter, an oscilloscope, and so on. According to the nature of the comparison, voltage comparison, waveform comparison, static impedance comparison, output comparison, current comparison and so on.
Method 3: Isolation method
Fault isolation does not require the same type of equipment or spare parts to be compared and is safe and reliable. According to the disease review flow chart, cutting and gradual reduction of the fault finding range, and then with the signal comparison, component exchange and other methods, usually quickly find the location of the problem.
Method 4: Condition adjustment method
Generally speaking, before the fault is determined, do not randomly touch the meta-devices in the circuit, especially the adjustable equipment, such as potentiometers. However, if the paperless recorder adopts a complex reference method beforehand ( for example, position mark or measured voltage value or resistance value before untouched ) , it is still allowed to be moved if necessary. Maybe after the change, sometimes the problem will be eliminated.
The power and ground of the IC ; the transistor circuit is connected across the base input or the collector output to investigate the effect on the appearance of the fault. If the colorful paperless recorder's capacitor bypass input is inactive and bypasses its output when the fault is not seen, then the fault is present in this level of the circuit.
Method 5: Percussion
Frequently, the appearance of the instrument is always good or bad. This image is mostly caused by poor touch or solder joints. For this situation, tapping and hand pressing can be used.
The so-called " knocking " is the part that may be faulty. Slightly hit the board or parts with a small rubber hammer or other tapping material to see if it will cause mistakes or downtime. The so-called " hand pressure " is when the fault is present, after the power is turned off, the inserted components and the plug and the seat are pressed by hand from the head, and it is not necessary to try to eliminate the problem. If you find that the casing is normal and the hit is not normal, ** first re-insert all the joints and try again. If it is not successful, you have to find another way.
Method 6: Investigation method
Use vision, smell, and touch. In some cases, the damaged component will change color, blister or appear burnt mottle ; the burnt equipment will have some special odor ; the short-circuited chip will be hot ; the virtual weld or de-solder can also be investigated with the naked eye. .
Method 7: Riding the shoulder method
The shoulder riding method is also called parallel method. Put a good IC chip on the chip to be viewed. Maybe connect the good meta-device ( resistance capacitor, diode, triode, etc. ) in parallel with the meta-device to be viewed, and stick to the excellent touch. If the problem is caused by the internal opening of the device or If you have a bad touch, you can use this method to remove it.
Method 8: Replacement method
1) Component replacement method: There are two instruments of the same type or spare parts that are required. Replace a good spare with the same equipment on the machine to see if the problem is eliminated.
2) Utility replacement method: When the function of a certain part of the fault machine is lost, because the original spare parts cannot be found at one time, according to the circuit principle of the part, the electrical parameters can be purchased or made to be replaced by the same or close parts, and the same can be reached. Repair the intent of the instrument.
Method nine: lifting temperature method
Sometimes, the appearance of the work for a long time, or in the summer when the operating environment temperature is high, it will be faulty, shut down and view normal, stop for a while and then turn on the normal and normal, and then there is a problem. This representation is due to the poor function of a single IC or metadevice and the high temperature characteristic parameters that are not met by the target requirements. In order to find out the cause of the metal processing network, the temperature rise and fall method can be selected.
The so-called cooling, that is, when the problem occurs, use cotton fiber to wipe the anhydrous alcohol in the part that may be faulty, to cool it, and investigate whether the problem is eliminated. The so-called warming is to artificially increase the ambient temperature, for example, using a soldering iron to close the suspected part ( note that the temperature must not rise too high to damage the normal equipment ) to see if the problem is presented.
Slow-speed Plastic Granulator:
The slow-speed beside-the-press granulator of RG-24 Series is used together with plastics molding machine. It is designed to break various shorts, reuse and semi-finished products made of plastic and rubber materials such as PC, PBT, nylon, and POM.
The machine is characterized with compact structure, attractive appearance, convenient operation, optimized rotation knife to
achieve lowest energy consumption and higher cutting efficiency.
Slow-speed Granulator Introduction:
RG-24 series screenless granulators are suitable for instant recycling or granulating hard and thick materials. With [Standard"
style appearance and compact size, they feature low rotating speed, low abrasion and super soundproof. Unique cutting blades design ensures well - proportioned granules and minimal amount of dusts. Easy for material cleaning and safe to operate.
Slow-speed Granulator Features:
1) Very low-speed rotation, high torque, with stronger breaking capability.
2) Driven directly by speed reducer motor, high transmission efficiency so as to save power.
3) Two sets of cutters to carry out rough and fine breaking respectively, very good for hard and thick material.
4) Screenless design, even particles and little powder.
5) Blower automatic conveying together with instant reclaiming system so as to reduce man power and contamination on raw material. High pressure air conveyor is optional to use.
6) Overload protection on motor and other safety protection devices.
7) Transparent window design on cutting chamber so as to know material condition anytime
8) European design with compact structure, room-saving and easy cleanout
9) Equipped with casters so as to move easily.
Slow-speed granulator schematic structure:
Slow-speed Granulator
Granulator Machines with Screenless Design,Slow-speed of Granulator,Slow-speed Granulator,Granulating Machine
Ningbo Beilun Rhong Machinery Manufacturing Co., Ltd. , https://www.rhongmachinery.com