Automotive Exhaust Bellows Helium Leak Test System with Vacuum Chamber and High-Sensitivity Leak Detection

Automotive Exhaust Bellows Helium Leak Test System with Vacuum Chamber and High-Sensitivity Leak Detection

Product Description

Designed for reliable leak inspection of automotive metal bellows and exhaust flexible pipe assemblies, this automotive helium leak test system uses vacuum chamber technology and helium mass spectrometer detection to identify unwanted leakage in critical connection areas. Developed and manufactured by HeJin, the system can be customized according to workpiece dimensions, testing requirements, leak rejection limits, and production processes. It helps automotive component manufacturers improve sealing quality, strengthen production inspection, and maintain consistent product reliability.

Automotive Exhaust Bellows Helium Leak Test System

Automotive exhaust bellows play an important role in absorbing vibration, compensating for thermal expansion, and reducing mechanical stress within exhaust systems. Although these components may appear relatively simple, their sealing performance directly affects the reliability of the complete exhaust assembly.

Welded joints, corrugated metal sections, connection interfaces, and other sealing areas can develop small leakage paths during forming, welding, or subsequent manufacturing processes. Some defects are too small to be reliably identified through conventional visual inspection or ordinary pressure testing.

This is where helium leak detection becomes valuable.

The automotive exhaust bellows helium leak test system is designed to evaluate the sealing integrity of metal bellows and related automotive components through tracer gas detection.

Using a vacuum chamber connected to a helium mass spectrometer leak detector, the system measures helium entering the chamber from the test component. When leakage occurs, the detector identifies the helium signal and compares the measured leak rate against the configured acceptance threshold.

Unlike inspection methods that depend mainly on visible bubbles or pressure changes, helium mass spectrometry provides quantitative leak-rate measurement and supports the inspection of components with demanding sealing requirements.

Manufactured by HeJin, this equipment can be engineered around actual automotive production requirements, including component geometry, connection structures, test pressure, acceptable leakage rate, chamber dimensions, and production cycle expectations.

For manufacturers seeking a dependable automotive helium leak detector, the system provides a practical approach to improving sealing inspection and production quality control.

Technical Specifications

Product Features

High-Sensitivity Helium Leak Detection

The helium mass spectrometer detects tracer gas passing through leakage paths in the test component.

Vacuum Chamber Testing Technology

The vacuum chamber provides a controlled testing environment.

Dedicated Bellows Testing Fixtures

Metal exhaust bellows are available in different lengths, diameters, corrugation structures, and connection configurations.

Automated Testing Process

The system can integrate PLC control, vacuum pumping, helium charging, pressure monitoring, leak detection, and test result evaluation.

Adjustable Leak Rejection Threshold

The acceptable leak-rate threshold can be configured according to the technical requirements of the tested component.

Product Functions

FAQs

Automotive Helium Leak Detector – Common Questions

Q1: What is an automotive exhaust bellows helium leak testing machine?

It is a specialized inspection system used to evaluate the sealing integrity of automotive metal bellows and exhaust flexible pipe assemblies. It uses helium tracer gas and a mass spectrometer leak detector to identify and quantify leakage.

Q2: Why use helium instead of ordinary compressed air?

Helium can be selectively detected by a helium mass spectrometer. This allows the system to identify small leakage paths and measure leakage rates quantitatively. Conventional air pressure testing is useful for many applications, but its sensitivity and measurement principles differ from helium mass spectrometry.

Q3: Which automotive components can be tested?

Typical applications include stainless steel exhaust bellows, flexible exhaust pipes, metal corrugated tubes, welded bellows assemblies and other sealed automotive metal components.

Q4: Can the equipment detect tiny pinholes in metal bellows?

Yes. Helium mass spectrometry is suitable for detecting small leakage paths, including pinholes and defective welded areas, provided the selected detector sensitivity and test configuration meet the required acceptance criteria.

Q5: Can different sizes of automotive bellows be tested using one machine?

Yes, a customized system can be designed with interchangeable fixtures or dedicated sealing interfaces to accommodate different workpiece dimensions. The available size range depends on the chamber and fixture design.

Q6: How is the leakage rate evaluated?

The helium detector measures the tracer gas signal and determines the corresponding leak rate. The result is compared with the configured rejection threshold to determine whether the component passes inspection.

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