The inspection is understood according to the relevant standards: through the use of observation and judgment, appropriate combined measurement, and comprehensive evaluation conducted by the test.
The purpose of the inspection is to meet the customer's expectations for product quality, and any process should be carried out around the customer.
Especially for the wire and cable manufacturing process control, the sooner the problem is found, the better.
The quality inspection of the wire and cable production process is verified according to the production plan, process instructions, and operating procedures.
The forms of inspection are various. This paper focuses on the production process inspection according to the production process, that is, the first piece inspection, tour Inspection, and complete inspection.
The first inspection should be essential, because it can play a crucial role in finding problems at the outset, solving problems, and developing preventive measures to prevent batch failure.
For example, production starts when the temperature of the heating is reached in the extruder.
Then this is the first inspection, to check whether the temperature of the extruder has reached the specified temperature, from the gloss of the discharged material, whether there are rubber particles, no plastic particles, etc.
If there is, the holding time is not enough, When it is turned on, it is bound to cause quality problems.
When you find a product that is not suitable, you should analyze it and develop preventive measures.
For the first inspection piece, self-inspection, mutual inspection, and special inspection can be introduced, then for the above three tests.
The patrol inspection is the full inspection of the quality of the workshop process by the quality inspector.
It is believed that the inspection of important processes and materials can be carried out in an instant.
Example: When the worker is doing normal production of the stranded wire, the inspector measures the outer diameter of the conductor and finds that the outer diameter is reduced.
Then the inspector should memorize the process specification. The outer diameter becomes smaller, causing the resistance to exceed the standard, find out the cause, perform classification and statistics, and improve.
A completion inspection is a form of review for the end of a finished product.
Verify that it meets the requirements.
For example:1kv electric copper power cable, 7x1.5mm2 control cable, and 10kv ABC cable, then the completion inspection, first depends on the number of conductors at the end, insulation thickness, most Thin spots, average thickness, and finish. The quality is analyzed by measuring and adding visual inspection.
Quality is an eternal topic.ZMS cable always believes that quality is the soul of enterprise development. All cables are produced as standard and must pass strict inspection before they ship out.