Виды неисправности силиконового шланга & Коренные причины

Введение

Silicone hoses are widely used in automotive, промышленные, and EV applications. Однако, failures can occur if design, materials, or manufacturing are not optimized. Understanding failure modes and root causes is key to long-term reliability.

FMEA

Common Failure Modes

»Cracking & Surface Degradation – Caused by thermal aging and excessive temperature cycles.

»Delamination – Separation between silicone layers or reinforcement under pressure or heat.

»Swelling & Softening – Oil, охлаждающая жидкость, or chemical exposure can reduce mechanical strength.

»Burst or Blow-Off – Insufficient reinforcement or incorrect geometry under pressure.

Коренные причины

»Material Incompatibility – Hardness, elongation, thermal expansion mismatch

»Reinforcement Issues – Poor adhesion or incorrect fiber orientation

»Process Control – Non-uniform vulcanization or incomplete curing

»Combined Stress Aging – Heat, давление, vibration over time

Engineering Prevention

»Carefully matched silicone compounds

»Reinforcement pre-treatment and orientation optimization

»Controlled curing and batch traceability

»Pressure cycling and thermal aging validation

Типичные применения

»Turbocharger hoses

»EV cooling loops

»Hydrogen fuel cell air circuits

»Industrial high-temperature hoses

Заключение

Silicone hose failure is usually multi-factorial, involving material, армирование, and process. HOTOP’s engineering approach ensures hoses remain reliable under complex operating conditions.