Carbon Fiber Self-Lubricating Bearings Manufacturer

Carbon fiber self-lubricating bearings are a synthetic product composed of high-temperature polymer and carbon fiber combined with several other additives. They fully utilize the physical properties of various materials and have good mechanical properties and corrosion resistance. They are widely used in advanced fields such as aerospace and military machinery. Our company is committed to applying them to the field of metallurgical equipment accessories to replace imported carbon fiber self-lubricating bearings. This bearing material has enormous potential for application in the metallurgical and equipment industries.

HYC52O is a new type of pressure resistant and wear-resistant material developed by our company, which is a combination of high-temperature resistant polymer, carbon fiber, and other additives. The material characteristics are similar to SMS company's Wearcomp carbon fiber wear-resistant material.
Our company mainly produces various products with high wear resistance requirements. Currently, our main products are copper parts and high wear composite steel plates (Corc-g series products). Our company has never stopped in product innovation and has been researching carbon fiber self-lubricating materials since 2010. Carbon fiber is known for its physical properties, but conventional industrial carbon fiber products use a shape similar to silk thread, which results in carbon fiber being subjected to forces in a plane direction. This is also why the vast majority of products that can be contacted in the market are made of carbon cloth woven. The design of carbon cloth can withstand tensile forces in multiple plane directions, and to be truly applied in industrial wear-resistant products and other fields, it must be able to withstand forces in multiple three-dimensional directions simultaneously.

To make a vivid analogy, making carbon fiber products is like building a house. Carbon fiber is the steel reinforcement skeleton, and the cement (binder) that aggregates it together has been the focus of our company's research for many years. After the house is built, various insulation coatings are needed. In carbon fiber self-lubricating materials, additives are used to improve self-lubricating performance, surface roughness, and friction coefficient. These additives are mainly composed of graphite that can improve lubrication performance and other additives. Only by combining these materials in appropriate proportions can qualified carbon fiber self-lubricating products be produced.

The main characteristics of carbon fiber self-lubricating products:

●Excellent mechanical performance

●Extremely chemical corrosion resistance

●Low friction coefficient: 0.01~0.3

●Self lubrication performance

●Can operate normally at a high temperature of 250 degrees Celsius

Carbon fiber itself has high-temperature resistance, capable of withstanding temperatures up to 3000 degrees Celsius, and its physical properties only begin to decline at 1500 degrees Celsius. However, the polymerization agent in carbon fiber self-lubricating materials is mainly composed of high molecular weight polymers extracted from petrochemicals. Similar to al all high molecular weight polymers, their high temperature resistance performance is not very , which also leads to the inferior high temperature resistance performance of carbon fiber self-lubricating materials compared to carbon fibers.

Section of carbon fiber self lubricating skateboard

The friction force experienced by wear-resistant plates and other products in industry may come from various directions simultaneously, and there are also certain requirements for the thickness and shape of the products. This makes it impossible for mature carbon fiber products in the form of carbon cloth, which are commonly used in products, to be directly applied to industrial products and equipment. In the cross-section of the carbon fiber self lubricating skateboard shown in the above figure, it is evident that the carbon fiber bundles exhibit an irregular distribution. Our carbon fiber self-lubricating product solution is composed of a mixture of short carbon fiber filaments and polymers. The diameter of carbon fibers is approximately 0.007mm, so mixing carbon fiber bundles evenly with polymer is one of the key technical difficulties. This means that each carbon fiber filament needs to be evenly coated with polymer material as a connecting medium, so that each one can be firmly bonded together. The important step is the surface treatment of carbon fiber bundles and the physical high-temperature stirring process. As a component of industrial equipment, it also needs to have certain machining performance, such as fixed sinking holes, surface polishing, grinding, etc. Simple carbon cloth or unmixed carbon wire cannot meet the requirements of machining.

Early failed products, uneven mixing of carbon fiber bundles, and inorganic processing performance

Sample of carbon fiber wear-resistant board without surface treatment

Polished carbon fiber wear-resistant plate surface

Technical indicators of carbon fiber wear-resistant board:

Surface texture of carbon fiber self lubricating skateboard

The blue arrow in the figure indicates a cluster of carbon fiber harnesses

Application examples:

Carbon fiber sliding bearing lining plate used in hot rolling unit (photos of on-site application in Baosteel)

The hot rolling mill is located in a harsh environment of high temperature, high pressure, dust, slag, and continuous water cooling, which requires high performance indicators of the lining plate in all aspects, especially the chemical corrosion resistance of the wear-resistant plate. At present, domestically produced Corc-g plates have gradually been used to solve these technical problems, while the advanced technology currently designed abroad is to completely solve this technical problem by using carbon fiber wear-resistant lining plates in the bearing seat lining plates and left and right pressure bearing lining plates of large hot rolling mills.