Reduced iron powder application of porous materials.

What is porous material?

Porous materials, which are porous materials, are interpenetrating or closed network structures composed of material entities and pores.
If the pores are interlinked, they are called open holes. If the pores are completely separated from the pores, they are called obturators.
Some of the pores are half-closed.

The advantages and uses of porous materials.

Powder metallurgy with pore diameter and porosity of porous materials can be controlled, thermal conductivity, electrical, welding and machining, high specific strength, impact toughness and energy absorption performance, chemical activity, and resistance performance, unique optical properties, good permeability, selectivity of infiltration and adsorption and so on a series of excellent performance.
It is widely used in gas or liquid filtration, purification and filtration of high temperature gas, electrode material, heat exchanger, heater and radiator.

Oil-retaining Bearing, namely Porous bearings (Porous Bearing), reduced iron powder as the main raw materials, oil Bearing is made of powder metallurgy legal sintering material, it is Porous, but also in the process of manufacture can freely adjust the quantity, size, shape and distribution of pore technical advantages.

Reduced iron powder is applied to porous materials.

When using spherical iron powder as raw material, the structure is uniform and good reproducibility.
When the iron powder with irregular particle shape is used, the material with higher porosity can be manufactured and the mechanical properties are better.
The forming pressure and sintering temperature of the porous material are generally slightly lower than that of sintered compact materials, which is to obtain the porous structure with ideal structure.
The average particle size, particle size distribution and particle shape of the selected iron powder play an important role in the pore diameter and strength of the porous materials.
Reduced iron powder particles with porous, the characteristics of particle shape is irregular, I plant the production of reduced iron powder, particle size and particle size distribution can be customized, is the ideal material in the manufacture of the porous materials.

Using porous characteristic of the material or with affinity properties of lubricating oil, the bearing installed before use, make the lubricating oil infiltration bearing shell material, can not add or during operation for a long time without lubricating oil, this bearing is called oil bearing.
Oil bearing in the running state, the lubricating oil is full of the pore, running, the shaft rotary heat due to friction, bearing thermal expansion, reduce pore, so the lubricating oil overflow, into the bearing clearance.
When the shaft stops rotating, the shaft is cooled, the pores are restored, and the oil is sucked back into the pores.