Ceramic Element and Method for Manufacturing a Ceramic Element

Simple SummaryContent extracted from patent full text and abstract with AI.

This patent describes a ceramic component, particularly for use in bearings, made from a composite material containing 30–70% by volume of ferrochrome silicon (FeSiCr), along with silicon carbide (SiC) and/or silicon oxycarbide. It details both the structure of these components and methods for manufacturing them, including the use of granulated starting materials, extrusion, and injection molding processes, enabling durable, tough, and hard ceramic elements suited for applications with long usability and wear resistance. The ceramic elements can be directly integrated with non-ceramic support parts such as plastic carrier elements.

Use CasesContent extracted from patent full text and abstract with AI.

• Ball and roller bearing races and cages in automotive or industrial machinery
• Rolling elements and cages in high-load or high-speed bearings
• Mechanical seals (face seals, rotating seals) for pumps and compressors
• Gears, camshafts, or other transmission parts needing high durability
• Textile machinery components (e.g., thread guides, greifers)
• Components in pumps, tool machines, and wind turbines
• Parts used in corrosive or sea water environments, such as in maritime or chemical industries
• Mass production of customized ceramic parts via injection molding or extrusion

BenefitsContent extracted from patent full text and abstract with AI.

• Extended lifetime and high durability of ceramic components due to a combination of hardness, toughness, and wear resistance
• Customizable hardness and damping through tailored material composition and spatial distribution within the component
• Cost-effective and efficient mass production by granulate-based extrusion or injection molding, reducing manufacturing costs
• Reduced abrasion and longer tool life during fabrication owing to the specific selection of materials
• Simplified integration with metal or plastic parts for more robust assemblies (e.g., carrier elements or cages bonded to ceramic rings)
• Lower processing temperatures enable more energy-efficient and faster manufacturing cycles
• Enhanced resistance to harsh chemical and environmental conditions, increasing versatility in demanding settings
• Reduced or eliminated need for post-processing (like sinter-skin removal) due to minimal surface reaction layers

Technical Classifications (CPCs)

Inventors & Applicants

Patent Abstract

The ceramic bearing element (10) has a through hole. A carrier element trained component (14) is provided on the shaft (16). The ceramic bearing element is formed with 30-70 percent by volume of ferrochrome silicon. The ceramic bearing element is formed of silicon carbide or silicon oxycarbide. Independent claims are included for the following: (1) device for preparing ceramic bearing element; and (2) method for preparing ceramic bearing element.