blog
Oct. 09, 2026
For Recommended Extrusion Temperature Control for LSZH Compounds, begin with a gradual profile rather than one fixed recipe. A practical starting window is approximately 130–180°C across feed, compression, metering, adapter, and die zones, followed by adjustment against the compound datasheet, actual melt temperature, screw geometry, line speed, moisture level, and die design.
Oct. 06, 2026
LSZH sheath cracking usually results from the interaction of thermal stress, mechanical stress, and material brittleness. High temperatures, solar heating, repeated thermal cycling, sharp supports, tight bends, excessive mineral flame-retardant loading, and poor installation practices can all initiate cracks. Chemical exposure, ultraviolet radiation, moisture ingress, and manufacturing defects
Oct. 05, 2026
A cable trial with a new LSZH sheath compound is a controlled comparison between an approved reference material and a candidate compound under defined extrusion, testing, and production conditions. The procedure should cover material receipt, composition review, drying, line preparation, control and trial runs, dimensional inspection, mechanical testing, flame and smoke evaluation,
