High density graphite bearing

الوصف

Raw material
High density and high Flexural Strength graphite material . (Die molded graphite)
Dipping special alloy treatment , carburizing treatment .etcmaking them stronger super corrosion resistant , wear resistant ,high hardness , super long life

Featrue:   High density, Fine grain size, High purity, High strength, Low specific resistance, Ease of precise machining Excellent thermal shock resistance to high temperature and oxidation ,Good anticorrosion .
                       Type Index **1 ONE impregnation TWO baking **2 TWO impregnation THREE baking **3 THREE impregnation FOUR baking Bulk Density ≥1.*5 g/cm3 ≥1.*2 g/cm3 ≥1.*5 g/cm3 Particle MAX（mm ) ≤ *3um / 0.**3mm ≤ *3um / 0.**3mm ≤ *3um / 0.**3mm Ash    ≤ 0.1   % ≤ 0.2 % ≤ 0.2 % Specific Resistivity (µ Ω ­ m) ≥9 ≥9 ≥ 9 Flexural Strength ≥*2Mpa ≥*5 Mpa ≥*9 Mpa Compressive Strength  ≥*0 Mpa ≥*5 Mpa ≥*2 Mpa

Property

1.Good corrosion-resistant and resistance to effect of heat , not affect lubricating performance  under water, vacuum, high-handed , strong corrosion medium , it’s widely used for various equipments , such as blue water , aviation , chemical industry , steel rolling ,etc. 
2. High hardness, small friction coefficient, good wear-resisting property,  without harming the environmental health , it’s widely used in food industry, pharmaceutical industry,  textile industry, scientific  research 
3.High carrying capacity, suit to equipment application with high speed, high PL value.
4. Carbon and graphite bearings, pistions, piston rings and sealing rings are normally used in mechanism equipments and these carbon and graphite parts can work at ***0 to **0 in corrosive medium and they can normally revolve with high speed(like **0m/s) without lubricating oil.

 Application

Since carbon graphite materials possess a series of features suitable for making wear-resistant parts, carbon graphite bearingis currently widely used for producing bearing working under special conditions. Carbon graphite bearing is extensively used in places where oil lubricants are not permitted during the bearing's operation, such as in the transports in industrial sectors like food, textile and chemicals, driers in the paper-making industry, bearing used in man-made textile machines, cigarette making devices, and submersible pump motors. Oil lubricants in these places will inevitably cause contamination, therefore, they are prohibited. However, carbon graphite bearing boasts a strong self-lubricant capability, able to operate for long without lubricants.

Carbon / graphite bearings can run dry, using the natural lubricating properties of the carbon/ graphite material, or they can be fully immersed in liquids such as water acids, alkaline solutions and solvents. It is preferable that the bearings are either fully immersed in the liquids or run completely dry.

 When it comes to choosing graphite bearing, the bearing's operating temperature should also be taken into account. This temperature is determined by two factors: the medium's temperature surrounding the bearing and the friction heat resulting from the bearing's friction surface. As is known to all, carbon graphite bearing made of various materials allows different temperatures. As a result, bearing made of proper materials should be chosen according to the operating temperatures. When the bearing is immersed in liquids or the liquids spray on the bearing (wet operation), the friction and the wear will be largely lowered. Besides, the liquids can help to reduce the friction heat. In this way, the PV permitted by carbon graphite bearing in significantly increased. On this condition, that PV could be over ***0 times compared with that of dry running