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Test scheme of wire and cable sealing: Harris Technology

In the electrical era, the tightness test of wire and cable has become the focus of manufacturers. However, due to many types of products, different production processes and sealing technologies, the tightness test has become a difficult point in the industry. At present, this kind of test method mostly adopts the air tightness test method to realize high-precision test of products without damaging the products. As an air tightness testing expert, we have a perfect test scheme for wire and cable tightness. Here is a brief introduction of our scheme.

Display of hermetic tester for wire and cable

1、 Importance of tightness test of wire and cable

At present, our power is the main energy source, and the wire used as the power conduction and carrier has a very wide range of applications, such as the connecting wire used for car camera, outdoor lighting, ship, solar energy, etc. Because the wire rod does not have the waterproof ability, once it enters the water, it may cause open circuit, and then burn the main equipment, and may cause accidents. Therefore, the wire rod sealing test is an important link to control the product quality.

Details of hermetic tester for wire and cable

2、 Difficulties in testing the tightness of wire and cable

Because wire and cable joint parts are irregular, welded, glued, or directly inserted, because of the uncontrollability of this process, the joint part can not be 100% sealed, and if the sealing is not good, it is not waterproof. Therefore, how to deal with different types of wire sealing test and different grades of waterproof test has become an important topic of Harris technology.

Details of hermetic tester for wire and cable

3、 Wire and cable sealing test display

The wire that needs to be tested for tightness is put into a relatively sealed tooling, and then the tooling is flushed with gas. The change felt by the precision pressure sensor of the wire waterproof detection equipment is transmitted to the waterproof detection system. Finally, after a series of calculations, the leakage value of the gas can be obtained, and the sealing performance and IP waterproof grade of the wire can be detected according to the leakage value. This detection method is not limited to the type of wire and waterproof grade requirements, combined with different mold and system parameter settings can be different wire, very suitable for the whole line sealing detection.

Interface display of hermetic tester for wire and cable

4、 Introduction to basic functions

1. Large size touch screen is used as the human-machine interface, which can easily monitor the test results and set various parameters in the process of waterproof test.

2. It has the alarm function of qualified and unqualified products, which can eliminate the possibility of manual misjudgment and misinspection.

3. With 4-way switch input and 8-way relay output, it can accept the control of external sensors and switch buttons, and can control the external relay, solenoid valve and other executive components, which is convenient to realize the full automation of the test.

4. The waterproof tester has 200 user subroutines. By setting the parameters of the subroutines on the touch screen, the user can connect different subroutines in series to form a test process. Through the I / O interface of the leakage tester, the leakage tester can receive the control signals from external sensors and control the external executive components (relays, solenoid valves, etc.). So as to realize the automation of the test process.

5. With test data recording function, test data can be downloaded to U disk and displayed by computer.

6. With barcode scanning function, it can track and record defective products and repair situation; The function of upper computer.

At present, the precision tightness testing system of Shanghai risi is relatively advanced, and many wire rods can be tested. We have cooperation with major wire rod manufacturers, representing customers: Xishan electronics, koni, Yiyuan, Yifeng, mingyida, etc.

All the contents of this article are original by Harris technology, reprint and false original are prohibited, and any violation will be responsible for the consequences.

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