Material Drying
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Improper production environment control during linear low density polyethylene linear low density polyethylene processing (Variant: strengthened measures)
Problem Phenomenon
Large workshop temperature and humidity changes cause product quality fluctuations, especially obvious differences in product dimensions and appearance between day and night.
Improper environment control affects process stability and product consistency.
In particular, additional attention is needed on the original basis; this problem is more prominent and requires key attention.
Cause Analysis
(1) Ambient temperature changes affect mold cooling effect and product shrinkage rate
(2) High ambient humidity causes raw material moisture absorption
(3) Workshop not equipped with air conditioning or poor air conditioning effect
(4) Morning-evening temperature difference affects cooling water temperature
(5) Airflow (such as door opening and closing) affects blown film frost line stability
(6) On the original basis, additional attention is needed as process parameter fluctuations or equipment status changes have aggravated this problem
Solution
(1) Install air conditioning system in production workshop, control temperature 20-25°C, humidity ≤60%
(2) Install constant temperature device on the cooling system, ensure stable cooling water temperature
(3) Zone temperature control for injection and extrusion workshops
(4) Install wind shields in the film blowing workshop to isolate external airflow
(5) Establish an environmental parameter recording system, adjust process parameters in time
(6) And strengthen process monitoring; on the original basis, additional attention is needed, with special attention to parameter stability
Key Takeaway
Production environment is an important factor affecting processing quality; a complete environment control system needs to be established.
Targeted preventive measures need to be taken in different production scenarios.
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