The salt core is made by middle-temperature sintering, with high
quality mine salt (high sodium chloride content) and inorganic
binder(high temperature durable ) with the right amount of
cosolvent. Pressing salt into the figure, middle-temperature
sintering , then with fine processing. Our salt core has advantages
in uniform dense, exact size and suitable settings in the piston
models. The salt core is easy to flush and solve, without any solid
particles. the salt core is washed with water to dissolve to form a
smooth gallery. The soluble salt core method is the most advanced
one for forming inner cooling gallery in the world today. The
process of producing inner cooling gallery piston with salt core
technology uses soluble salt cores by special processing, that is,
the mould salt cores with special shape, sufficient strength and
smooth surface.
