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          1. What Are The Stages Of Failure Rules Of Injection Molding Machines?

            What Are The Stages Of Failure Rules Of Injection Molding Machines?

            Update:2022-12-23
            Summary:  What are the stages of the failure law of the injection molding machine? The change law of the fai...

              What are the stages of the failure law of the injection molding machine? The change law of the failure rate of the injection molding machine over time is often called the bathtub curve. The change in the failure rate of injection molding machines over time can be roughly divided into three stages: early failure period, sporadic failure period, and wear-out failure period.

              1. Early failure period

              The injection molding machine is in the early failure period, and the failure rate is high at the beginning, but the failure rate drops rapidly as time goes by. The early failure period is also called the running-in period for mechanical products. The length of this period varies depending on the design and manufacturing quality of products and systems. The failures during this period are mainly caused by design and manufacturing defects, or improper use environment.

              2. Occasional failure period

              The injection molding machine has entered a period of sporadic failures, and the failure rate is roughly in a stable state, tending to a constant value. During this time, failures are random. During unexpected failures, the injection molding machine has the lowest and most stable failure rate. So it can be said that this is the best period or normal working period of the injection molding machine. This period is called the effective life.

              Occasional failures are mostly caused by improper design, use, and maintenance. Therefore, by improving the design quality, usage management, monitoring, diagnosis, and maintenance, the failure rate can be reduced to a minimum level.

              3. Wear and tear period

              In the later period of using the injection molding machine, the failure rate starts to rise. This is due to wear, fatigue, aging, and corrosion of injection molding machine parts. The failure rate can be reduced cost-effectively if an overhaul is performed at the point of inflection, the beginning of the wear-out period.

              The three stages of the single-cylinder injection molding machine failure rate curve truly reflect the change law of the injection molding machine failure rate from running-in, debugging, and normal operation to overhaul or scrapping. Strengthening the daily management and maintenance of injection molding machines can prolong the period of unexpected failures. Accurately find the inflection point, and you can avoid over-maintenance or expand the scope of maintenance, to obtain the best return on investment.

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