In the new manufacturing era, quality control is a systematic engineering with its own laws and unique control methods.If the correct quality control method is not mastered, it will be difficult to control the quality of products, and even some unexpected quality problems may occur, causing a great economic loss to the enterprise.

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But quality control is not easy, which is where the enterprise’s competitiveness lies. High quality products depend on design, management and control, not on text. A chief technical engineer who has 30-year-experience has summarized six concise Suggestions for quality control:

1.Do not determine process easily.Do not change the determined process easily

• When products occur quality problem, we need find the root of the problem, the main factors or the main performance.
• Before figuring out the problem, easy modification of the process actually hides the true cause and problem.

2.Process control requires a strong sense of quantification and traceability

• Quality depends on many factors. Do not ignore any details.
• Use data to control and record details as far as possible.
• Failure to control and trace process details can mislead the formulation of corrective and preventive measures.

3.Must be patient in solving problems

• Do not be impetuous and impatience.
• Do not ignore any unusual situation just because it seems to have nothing to do with the problem to be solved.
• Do not do nothing when you can’t find out the reason and the rule. You can regulate the influence factors analyzed.
• Review the experience and rules that have been tested and summarized before.
• Once you find some experience and rule, it’s worth to go further and rise to a theory, even at a higher cost.
• You should know that “A small leak will sink a great ship.”, and “the determination to win victory and the courage to surmount every difficulty”.

4.To enhance prevention consciousness

• management is prevention, not to remedy when a problem occurs.
• Any quality problem must have symptoms. Whether you can monitor and identify it or not depend on whether you have the methods, means and experience.
• When the same quality problem repeated for the second time, great attention should be paid to it.
• The daily process and result data should be sorted out with certain tools, and the rules and changing trends should be found from the results. The rules and the tendency indicated should be modified continuously.
• All control elements should be as consistent as possible before product processing.

5.Quality control requires management thinking 

• Do not rely directly on technologists to achieve quality stability of products.
• Product quality is manufactured. Without direct management of manufacturers, quality can never be stable.
• Therefore, we should observe, pay attention to and study the performance and state of the product manufacturers, and conduct management and mobilization based on those performance and state.
• If the performance and status of product manufacturers are not controlled, you will always analyze the cause lacking of inaccuracy once the quality problem occurs.
• Do not take for granted that the product quality is absolutely no problem when the process meets the control requirements specified in our process discipline.
• Therefore, our process control needs to be improved continuously, and we also need to manage people well.

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6.Listen to advice and opinions as much as possible

• Do not assume easily that others’ opinions were of no value just because others don’t know the facts and can’t solve problems at once.
• But they can give us a lot of hints and reminders, especially if they are the direct manufacturer of products.
• If you can solve the problem, it’s ok to ignore others’ opinions and suggestions. But when it doesn’t work, it’s necessary to hear others’ opinion and advice, to try and to test, whether you like it or not.
• Quality management thinking often touches the forefront of technology. Even a casual remark or a complaint may lead or imply a major technical innovation direction, so a professional technician should pay attention to details and be good at capturing details.