The quality inspection process of Sihai

Our factory specializes in making empty aerosol tin cans for 25 years of experience. In our production process, in order to produce high quality aerosol cans, we specify the following quality inspection process:

1、 First article inspection

• Each workshop and each process shall conduct first article inspection based on production plans, product production processes, product drawings, quality standards, etc.
• The first article inspection must be carried out in the following situations: starting production, changing varieties, changing materials, changing molds, repairing molds, equipment maintenance, changing fixtures, changing production personnel, changing processing methods, and other situations that require first inspection.

2、 Self inspection batch standard:

• Iron cutting: Inspect once every 20 minutes, with a minimum of 2 pieces per inspection.
• Printing iron (coating/printing): Inspect every 3 minutes, with no less than 1 piece per inspection.
• Stamping (top/bottom cover): Appearance inspection shall be conducted every 10 minutes, and the quantity of each inspection shall not be less than 10 pieces; Other measurement indicators are inspected every 1 hour.
• Can making (welding): appearance inspection every 10 minutes, the number of each inspection is not less than 2 pieces; welding line tearing, copper sulfate test every 2 hours, the number of each inspection is not less than 1 piece.
• Can making (sealing):(Appearance) operators every 10 minutes to test 1 piece, process indicators every 2 hours to measure 1 piece, test the number of each sealing head each 1 piece, the commissioner every 1 hour to test the indicators, each test the number of each sealing head each 1 piece.
• Can making (sealing):(Appearance) operators every 10 minutes to test 1 piece, process indicators every 2 hours to measure 1 piece, test the number of each sealing head each 1 piece, the commissioner every 1 hour to test the indicators, each test the number of each sealing head each 1 piece.
• Can making (leak detection): Inspect every 30 minutes, with a minimum of 50 pieces per inspection.