Plastic tube bursting bench in production
Carry out bursting tests on plastic or flexible tubes by subjecting them to internal pressure.
THE SOLUTION PROVIDED BY LF TECHNOLOGIES
Our client is a global automotive supplier, leader in protection and routing solutions for on-board electrical and fluid networks.
Main functions
Objective
Carry out bursting tests on plastic or flexible tubes by subjecting them to internal pressure.
Issues
The bench must be able to test both :
long corrugated tubes. These tubes deform a lot when pressurised.
short smooth tubes. These tubes have a very high resistance to pressure.
The pressure regulation must be very fine and linear.
Solution and Result
LF Technologies has developed a static pressure generator to meet the need for both volume and accuracy of pressure application.
The static pressure generator is a motorised syringe with a small cross-section to ensure accurate pressure application.
In order to inject sufficient liquid into the corrugated tubes, the static pressure generator is equipped with an automatically controlled valve, allowing the pressure in the tube to be maintained until the syringe is refilled.
Products tested
HOSE TESTED TO BURSTING POINT
The products tested were corrugated or smooth tubes of different diameters, lengths and materials.
OUR KEY TEST BENCH FOR THESE Tests Burst pressure – CRASH-TUBE
This test bench is designed to carry out cyclic water pressure tests on a product; It simulates water hammer in piping systems, or tests (accelerated) aging of components. It checks for leaks by pressure drop or flow detection. It can also be used to carry out pressure tests on components subject to specific legislation.
The aim of a test is to apply static pressure cycles, according to a trapezoidal profile, in a more or less elastic product.
- Sample installation and clamping
- Connection of supply hose and drain hose
- Software setup / program selection
- Launching the test scenario
- Automatic purging, servo-controlled cycling, automatic leakage monitoring
- Recording test results
Bench developed to meet these standards:
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Aurélien Cottin
Hydraulics Division
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