Laboratory operators must be familiar with the basic working principle, functional characteristics of the inverter in the electronic universal testing machine, and have common knowledge of electricians. Prior to the routine maintenance of the frequency converter, it must be ensured that the total power supply of the equipment is cut off; and after 3-30 minutes (according to the power of the frequency converter) of the inverter display completely disappears. Attention should be paid to checking the voltage of the grid, improving the surrounding environment of the inverter, motor, and the line, periodically removing dust from the inverter, and minimizing the failure rate of the inverter by strengthening device management. Due to the production characteristics of some companies, the corrosive gas concentration in each electrical mcc room is too large, resulting in many electrical equipment being damaged due to corrosion (including inverters).

In order to solve the above problems, the inverter in the electronic universal testing machine can install an air conditioning system and use positive pressure fresh air to improve the environmental conditions. In order to reduce corrosion of corrosive gases on the circuit board components, inverter manufacturers may also be required to perform anticorrosion processing on the circuit boards, and also to spray anticorrosive agents after maintenance, which effectively reduces the failure rate and improves the use efficiency. While maintaining, carefully check the frequency converter and send power regularly. The low frequency with the motor working at 2hz is about 10 minutes to ensure that the inverter works normally.

Twin Screw Extruder

Twin Screw Extruder

Twin screw extruder is second manchie for powder coating production line.

Gap free extruder is designed and developed for high requirement, meeting strictly highest standards, having world class quality and up-to-date technology.

1. Main Characteristic:

1. Hand hydraulic pressure barrel; Easy to change color and cleaning

2. Three zone PID temperature control accuracy ±1°C

3. Cooling water system inside the screw

4. Separately cooling water system in barrel No. 3 zone to avoid block water passage

5. Gear box equipped with lubricating system

6. Gear box equipped with water cooling system

7. Feeding area has permanent magnetic metal remover

8. Extruder noise lower than ≤80dB

2. Machine picture:

Double Screw Extruding Machine

3. Our Advantage & Service:

-Technical Support Online Service Provided
According to customer's requirement, we provide layout (plant designer), excellent mechanical engineer, excellent electrician, etc.

-On-site Training Service Provided
In customer factory, we provide all kinds of training, including installation, commissioning
-Long-term Maintenance Provided
In the area of maintenance, we offer needs-oriented and standardized maintenance packages, such as the overhaul of components, gearboxes, in order to guarantee the safe and economic operation of plant and machinery.
-Spare Parts Replacement and Repair Service Provided
Providing spare parts for all kinds of powder coating processing equipment in long-term. And can provide tailored made spare parts according to customers' requirements. Ensure advanced craft, good material and high precision.
-Formulation Provided (our advantage):
Some customers are worried their final products if can get best result, we have our own formulator (Engineer for powder coating formulation) who is testing and updating the formulation according to customer requirement all the time. And have very good experience for the formulation to support customer to make different effect powder coatings.

We can supply all Powder Coating Raw Materials( polyester resin, epoxy resin, barium sulfate, gloss agent and so on) in the formulation.

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Yantai Yuanli Corp Ltd , https://www.yuanlicorpcn.com