Binzhou Zhengdao Mechanical Manufacturing Co., Ltd.

Product Usage:

After the salt core is flushed out of the piston, it forms an internal cooling oil channel, which reduces the temperature of the piston head and the first ring groove and improves the service life of the piston.

Peculiarity:

1. High strength and high temperature resistance: the salt core will not break when preheated in the 720°C furnace and piston casting operation.

2. Immersion resistance: When the salt core is poured with aluminum solution, it will not break, no gas will be generated, and no salt will float on the surface of the solution.

3. Easy to dissolve, can be flushed quickly: After the salt core is cast into the piston blank, it can be completely rinsed in a maximum of 10 seconds at 200 bar water pressure.

4. Appearance quality: There are no quality defects on the surface of the salt core, such as cracks, edges, burrs, notches, oil stains, etc., and the arc transition is smooth.

In modern internal combustion engines, the piston is bound to bear increasing heat loads, especially with the use of engine turbocharging technology in high-end cars at home and abroad, through turbocharging technology to improve the power and torque of the engine.

In order to improve fuel economy, reduce exhaust emissions, reduce fuel consumption, with the increasing power requirements and in order to ensure the safety of piston operation, this technology uses an internal cooling oil channel piston, that is, in the aluminum piston casting process with a salt core to form its internal cooling oil channel, after casting and then flushing with water to remove the salt core. It has become an inevitable choice for high-speed and high-power engines.