This standard specifies the requirements for the integrity and inspection and evaluation methods of electrostatic spraying production lines. This standard applies to suspended electrostatic spraying production lines, and other types of electrostatic spraying production lines can also refer to this standard for implementation. SJ/T 31058-1994 Requirements for the integrity and inspection and evaluation methods of electrostatic spraying production lines SJ/T31058-1994 Standard download decompression password: www.bzxz.net
This standard specifies the requirements for the integrity and inspection and evaluation methods of electrostatic spraying production lines. This standard applies to suspended electrostatic spraying production lines, and other types of electrostatic spraying production lines can also refer to this standard for implementation.

Electronic Industry Standard of the People's Republic of China
Standard for the integrity of electrostatic spraying production line and inspection and evaluation methods 1 Subject content and scope of application
This standard specifies the integrity requirements and inspection and evaluation methods of electrostatic spraying production line, SJ/T 31058-94
This standard is applicable to suspended electrostatic spraying production line, and other types of electrostatic plastic production line can also refer to this standard 2 Reference standards
TJ36-79 Industrial enterprise design hygiene standard 3 Integrity requirements
3.1 Main parameters Performance indicators
The temperature index of the drying channel of the electrostatic spraying production line equipment, the uniformity of temperature difference, the travel distance of the powder spraying inspection, the electrostatic voltage, and the installation paste of the hanging conveyor should all meet the values ​​specified by the manufacturer. The productivity shall not be less than 90% specified by the manufacturer, 3.2 Hanging conveyor
3.2.1 The conveying device runs smoothly, without impact and abnormal media noise. 3.2.2 The movable rail moves within the range of operation. One of the four supporting rollers is allowed to be out of contact with the fixed frame, but the gap should not be greater than 2mm.
3.2.3 The straightness of the track is not greater than 3.5mm over a length of 1m and not greater than 12mm over a length of 6m. 3.2.4 The hook and steering device are sensitive, and the braking and limiting are correct and reliable. 3.3 Cleaning, phosphating device and drying oven
3.3.1 The components of the cleaning, phosphating device and drying oven are complete and free of serious rust. The cleaning and phosphating device box does not leak. 3.3.2 The drying oven is well insulated, the insulation layer is not burned or damaged, and the box shell temperature should be less than 40℃. 3.4 Spray gunbzxz.net
3.4.1 The spray gun moves flexibly, moves well, and the electrostatic action distance meets the requirements. 3.4.2 The powder barrel is sealed without leakage, the air inlet filter device is complete, the filter element of the filter should be clean, the maximum pressure drop of gas passing through the filter element should not exceed 15% specified by the manufacturer, and the drain valve of the separator should be flexible and effective. 3.5 Power and electrical system
3.5.1 The performance of various power pumps meets the requirements and works well. 3.5.2 The power pipelines and joint valves are firmly connected and leak-free. 3.5.3 The gas tank is inspected regularly and has a valid pressure vessel test certificate. 3.5.4 The electrical system is fully equipped, the pipelines are complete, the performance is good, and the static voltage meets the specified indicators. 3.5.5 The electric heating system is installed correctly, and the insulation resistance between the electric heating part in the box and the outer shell is not less than 10000/V. Approved by the Ministry of Electronics Industry of the People's Republic of China on April 15, 1994, and implemented on June 1, 1994
SJ/T 31058—94
3.5.6 The detection devices, measuring instruments and meters are complete and indicate correctly: and they are within the valid calibration period. 3.6 Lubrication system
3.6, 1 The lubrication devices are complete and function well. 3.6.2 The oil nozzles, oil cups, oil eyes, etc. shall not be missing, damaged or blocked. The injected lubricating oil or grease shall be clean and in place. The conveyor chain and positioning pulley shall be kept well lubricated.
3.7 Safety protection devices
3.7.1 The safety protection devices are complete and reliable. 3.7.2 The exhaust and detoxification shall comply with TJ36-79 "Industrial Enterprise Design Hygiene Standard". The exhaust wind speed shall be greater than 0.5~1.0m/s.
3.8: Maintenance
3.8.1 After work, the spray gun should be cleaned in time, and the nozzle should not be blocked. 3.8.2 The rest shall be carried out according to SJ/T31002-94 Equipment Maintenance General Rules. 4 Inspection and evaluation methods
4.1 Inspection methods
In this standard, 3.1 uses thermometer, thermocouple, steel tape measure, and multimeter, 3.2.2 and 3.2.3 use steel tape measure; 3.3.2 uses thermometer; 3.4.2 opens pressure gauge; 3.5.5 uses multimeter for detection, and 3.7.2 is detected by the environmental protection department. The rest are detected by the main regulation method. 4.2 Evaluation method
4.2.1 In this standard, 3.1, 3.4.1, 3.5.1, 3.5.4, 3.5.5.3.5.6, and 3.7.2 are the main items, and the rest are secondary items.
4.2.2, if one of the main items does not meet the requirements, it is an incomplete equipment. If two of the secondary items do not meet the requirements, it is also an incomplete equipment.
Additional Notes:
This standard was proposed by the Economic Operation and System Reform Department of the Ministry of Electronics Industry. This standard was drafted by Nanjing Huaning Electronic Technology Research Institute. The main drafter of this standard: Ge Shenmin.
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