Rubber hoses: The invisible guardians in the "blood vessels" of automobiles
Rubber hoses form the "vascular system" of a car, playing their role silently in critical components.
In the engine compartment, cooling system hoses are the core. They transport coolant, withstand high temperatures of 90-110℃, and resist ethylene glycol corrosion, ensuring the engine maintains a constant temperature. Poor-quality hoses are prone to aging and cracking, which may lead to coolant leakage and engine overheating.
In the fuel system, oil-resistant hoses must resist the erosion of gasoline and diesel while preventing permeation. In high-pressure common rail systems, they withstand high-pressure pulses, serving as a leak-proof safety barrier.
The brake hoses in the braking system are even life-saving components. They transmit brake oil pressure and need to have both flexibility and pressure resistance. They must not expand or rupture under extreme working conditions, as they are crucial to driving safety.
With the rise of new energy vehicles, rubber hoses face new challenges. Battery cooling hoses must withstand temperature differences from -40℃ to 120℃, and air conditioning hoses have to adapt to environmentally friendly refrigerants.
These seemingly ordinary rubber hoses need to pass tests for aging resistance, pulse resistance, ozone resistance, etc. Paying attention to their quality when choosing a car is like safeguarding the "blood circulation" of the vehicle.
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