Among the defects in die-casting parts, the most difficult one to solve is insufficient sealing, which leads to leakage problems such as oil leakage, air leakage, and water leakage during use.In order to meet usage standards, manufacturers need to conduct strict air tightness tests on die castings.Among them, Hirays Technology, a domestic expert in the production of air tightness testers, has developed a high-precision die casting air tightness testing equipment, which has been adopted by Zhengyao New Energy Technology Co., Ltd.Next, let’s take a look at this die casting air tightness tester.

one,Test principle

This die-casting air tightness tester from Hirays Technology uses compressed air as the detection medium to directly inflate the die-casting using the direct inflation method. It uses the pressure sensor inside the instrument to monitor the product. After inflation, the pressure changes displayed by the instrument are used to determine whether the die-casting is leaking.

Schematic diagram of the air tightness detection principle of Hai Ruisi Technology’s die casting parts

Hirays Technology die casting air tightness detector interface

two,Die casting air tightness tester3dDesign drawing

Hirays Technology Die Casting Air Tightness Tester Tooling3dDesign drawing (1）

Hirays Technology Die Casting Air Tightness Tester Tooling3dDesign drawing (2）

three,Practical operation of air tightness test of die castings

Before the test, Hirays Technology put the die casting into the tooling and connected it to our instrument. There is a valve island, gas tank and other components inside the instrument as well as the program we set. After the connection, press the start button when testing the die casting.

During inspection, the instrument inflates the die casting.If the die casting is not sealed and air leakage occurs, the gas will leak to the other end. At this time, 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 die casting is leaking, and the instrument test results will also showNG, meaning the air tightness test failed.If the tested die-casting does not leak, the gas will be in a constant state after inflation, the pressure value and leakage value displayed on the instrument are also stable, and the instrument test results will showOKThe words indicate that the die casting has passed the air tightness test.

Four,Die casting air tightness tester finished product display

Hirays Technology Die Casting Air Tightness Tester Product Picture

Real shots of the tooling details of Hirays Technology’s die casting air tightness tester

Real shots of Hirays Technology die casting air tightness detector tooling

five,Introduction to the air tightness detection function of die castings

1、 This waterproof tester can support leakage test methods such as leakage test, obstruction test, positive pressure test, and negative pressure test. It has a wide test range and users can choose according to their own testing needs.

2 , Using a large-size touch screen as the human-machine interface, you can easily monitor the test results and set various parameters during the waterproof test process.

3 . It has an alarm function for qualified and unqualified products, which can eliminate the possibility of manual misjudgment and misdetection.

4 ,bring4switch input and8The relay output can be controlled by external sensors and switch buttons, and can control external relays, solenoid valves and other actuators to facilitate full automation of testing.

5 , waterproof tester has200segment user subroutines. By setting the parameters of the subroutine on the touch screen, the user can connect different subroutines in series to form a test process, and use the leakage meter's ownI/OThe interface allows the leak meter to receive control signals from external sensors and control external actuators (relays, solenoid valves, etc.).Thereby automating the testing process.

6, with test data recording function, the test data can be downloaded toUdisk and displayed via computer.

7, with barcode scanning function, which can track and record defective products and repair status; host computer function, etc.

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