What are the consequences of unclean hot runner sensors?

Uncleaning hot runner sensors for an extended period of time will worsen performance degradation and ultimately result in early failure. The precise repercussions are as follows, in decreasing order of severity:

Early Stage: Inaccurate pressure readings and inconsistent product quality: The diaphragm's stress properties are changed by accumulated material and corrosion residue, which results in zero-point drift and reduced sensitivity. This frequently results in problems like inadequate adhesive, flash, and dimensional errors, which cause the yield of the final product to steadily decline.

Mid-Stage: Shortened lifespan and accelerated aging: The diaphragm is still being corroded by residual corrosive elements, which accelerates oxidation and fatigue. There will be a 1/3 to 1/2 reduction in accuracy retention time. In 1.5 to 2 years, a sensor that might last three years might break down.

Late Stage: affects the hot runner and results in sealing failure: The diaphragm is compressed by accumulated material, which affects the sealing structure of the sensor. This makes it possible for molten metal to seep into the sensor and burn it out. The hot runner template may be harmed by the high-temperature molten metal leak, necessitating more costly repairs. Regular cleaning after processing corrosive chemicals can increase the sensor's service life by roughly six months and lower long-term running expenses, even if the sensor does not wander substantially.