Infiltration equipment company: application of infiltration technology in five major industries

The infiltration technique is to infiltrate the sealing medium into the micropores by natural permeation, vacuuming and pressurization, fill the gap, and then solidify the sealing medium in the gap by natural, cooling or heating to achieve the sealing gap. . Infiltration technology is used in all walks of life, let's make a brief introduction:

1. Cutting huge rock technology:

In ancient times, there was no rock cutting machine, so how did the large rock needed for the building cut? In fact, since ancient times, people have begun to master the principle of infiltration, and open some holes in the big rock to drive the dry wooden stick into the hole. Inside, the moisture is absorbed into the wood rod by the micropores of the dry wood rod, and the wood rod begins to expand, and the rock is cracked by the great force of expansion.

2. Prevent deformation of wood products:

Wood products expand and contract due to drying or wetting, such as the handle and other parts will fall off, wood deformation. In order to solve this problem, people have solved the problem by infiltrating the inside of the wood product with resin.

3. Making explosives:

The black powder medicine invented in China is made of saltpeter, charcoal powder and sulfur powder, and is used as a propellant for shells. Impregnation of nitroglycerin into silica using infiltration techniques can produce relatively safe explosives.

4. Prevent micro-hole leakage of aluminum alloy casting parts of military aircraft:

The aircraft was successfully tested in 1905. It was applied in the First World War in 1914-1918. In 1939-1945, the World War II metal aircraft was widely used. The aluminum alloy cast parts on the aircraft have pinholes that are invisible to the eye during casting. These are due to the fact that hydrogen and air are enclosed inside the material during casting. Depending on the characteristics of the pinhole, it may cause leakage from the inside to the outside of the part. Liquids and gases such as grease, cooling water, gasoline, air, and refrigerant gas for air conditioning may leak.

In addition, moisture or the like may be infiltrated from the outside, which may affect or even damage the function of the component. Therefore, the impregnation treatment is required, and the impregnation treatment means that the liquid infiltrant is infiltrated into the pores of the pinhole to be solidified, thereby preventing leakage of oil leakage and the like. This infiltration technique was applied to this military industry in 1940.

Because the United States is an important production process for military production, the United States has established military industrial infiltration standards, which are still in use today.

5. Military transfer to civilian use:

Pressure-resistant castings such as automobiles, motorcycles, trains, ships, air conditioners, household appliances, water pumps and pipe fittings, as well as gear and electronic parts powder metallurgy parts are also widely used. In the mass production process of pressure-resistant die-cast parts, Generally, about 5 to 10% of parts are leaked. If it is completely recast, it will cost a lot of money. Therefore, the significance of infiltration is not only quality assurance, but also a very important process in reducing the cost of mass production.

6, other applications

It is also widely used in the insulation of components and motor coils, and in the rust prevention of parts. In addition, in improving the physical properties of the parts, such as improving the cutting performance of the parts, in the surface treatment such as electroplating, infiltration treatment before painting, improving the plating quality, the surface is smoother, no spots are generated, and the life of the parts can be prolonged.