At home and abroad, the application of infiltration technology is very extensive. Industrial countries have advocated full impregnation treatment of pressure-bearing castings. The infiltration technology has been recognized by the automobile manufacturing industry and other major industrial sectors, and the development of infiltration treatment equipment and materials. The infiltration treatment technology is a satisfactory process for saving the leakage defects of automotive aluminum castings. As everyone knows, the infiltration technology has been widely used in ancient China, which has to be admired.

1. The most typical ancient infiltration technique is the cutting of huge rock technology:

In ancient times, there was no rock cutting machine. So how did the huge rock needed for architecture and decoration cut? In fact, since ancient times, people have mastered the simple infiltration technique and its principle, which is opened on the big rock. Some holes drive the dried wooden stick into the hole. People use the principle of infiltration to absorb moisture into the stick through the micropores of the dried stick. Then the stick begins to expand. It is known that the pressure of the wood absorbs water and the pressure of expansion is very large. The rock is split by the great force of its expansion, thus achieving the effect of cutting the rock. Using dry wood sticks to absorb moisture expansion, this should be the oldest infiltration technique.

2. Wood infiltration technology to prevent deformation of wood products:

Wood products undergo expansion and contraction deformation due to drying or wetting, such as wooden handles such as tools, handles and other wooden products are deformed and loosened, and wood deformation. In order to solve this problem, people have solved the problem by infiltrating the inside of the wood product with resin. This purpose of impregnation is the same as that of modern wood infiltration and is still in use today.