With the improvement of consumption levels, both consumers and producers have higher requirements for product quality.The sealing requirements of wires are also constantly increasing. In order to obtain the best performance of wire products, manufacturers often perform sealing testing on wires. However, different types of wires have different requirements for sealing testing. In particular, wires with multi-wire connections are difficult to conduct sealing testing.As a well-known sealing testing and production expert, Hirays Technology has made many achievements in sealing testing of wire rods.

So, this time we will share a number of different models of multi-wire connector wire sealing testing cases for your reference.

(Heruis wire sealing tester)

1. Shape analysis of wires

1. The appearance characteristics of the wire connector of the multi-wire connector: the coating of the long wire is fixed with a metal ring, and the upper connection of the metal ring is divided into two or more wire connectors to connect to the connection holes on different wire connectors; the wires are scattered among themselves, and the wire connector is an irregular rectangular parallelepiped, which is unfavorable for sealing detection;

2. The shape characteristics of the wires with two-wire connection and three-wire connection: the overall shape is an irregular rectangle. Three or two wires are connected to the connectors at both ends. The butt end is fixed with a holder, and the whole is protected by waterproof coating. The irregular shape is difficult to seal during inspection, which is detrimental to inspection.

2. Breakthrough in the difficulty of wire sealing detection for multi-wire joints

1. Regarding the shape of the multi-wire connector, Haris has a special grinding tool to hold it. The connector is put into the mold and stuck just right. For multi-wire cases, special grooves are also made for packaging. This is beneficial to the upper and lower closing of the mold during inspection. When inflating the inner body, it can avoid gas leakage and lead to numerical errors.

2. Hirays Technology has also prepared a special mold for the multiple wires that are connected first. The mold has special grooves for two or three wires, and special grooves are also made for the lower connector.This will help the mold to close up and down during inspection, forming a closed inspection environment and avoiding leakage when inflating the inner body during inspection, which is beneficial to inspection.

3. Display of wire sealing test status

(Double-position tooling for wire sealing testing)

(Tooling equipment for wire sealing testing unit)

Put a variety of wires into the corresponding tooling molds and connect them to our instrument. There is a valve island, a gas tank and other components inside the instrument as well as the program we have set. After the connection is made, press the start button when testing the wires.

During inspection, the instrument will inflate the mold.If the wire connector is not sealed and air leakage occurs, the leakage value displayed in the instrument will become larger and larger, and the pressure value will decrease at the same time.At this time, it can be determined whether the wire connector is leaking, and the instrument test result will also show NG, which means the air tightness test failed.If the tested wire connector does not leak, the gas in the tooling mold will be in a constant state after inflation. The pressure value and leakage value displayed on the instrument are also stable. The instrument test result will display OK, indicating that the air tightness test has passed.

4. Parameter table of wire sealing tester

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