Graphite and Fire Protection Product Glossary

Carbon Brush

Carbon brushes are electrical contact components for motors, generators and slip ring assemblies, conducting current between stationary stators and rotating rotors.

Motor Brush

Motor brushes are a type of carbon brush specially used for electric motors to maintain maintain stable electrical contact with commutator and slip ring.

DC Motor Brush

DC motor brushes are designed for direct-current motors to build up conductive contact between the power supply and rotating commutator.

Graphite Brush

Graphite brushes are carbon brushes doped with graphite, combining good electrical conductivity, self-lubrication and wear resistance.

Carbon Graphite Brush

Carbon graphite brushes are compounded from carbon and graphite raw materials for electric motors, generators and general industrial electrical devices.

Copper Graphite Brush

Copper graphite brushes contain copper powder and graphite, adopted for occasions requiring enhanced electrical conductivity.

Silver Graphite Brush

Silver graphite brushes are silver-graphite composite contacts, used for applications demanding ultra-high conductivity and ultra-stable electrical contact performance.

Slip Ring Carbon Brush

Slip ring carbon brushes are matched with slip ring systems to transmit current between static and rotating mechanical parts.

Generator Carbon Brush

Generator carbon brushes guarantee reliable electrical contact and steady current transmission in power generators.

Graphite Block

Graphite blocks are solid graphite blanks for machining molds, EDM electrodes, furnace components, support plates and custom graphite parts. Material selection is based on bulk density, grain size, purity, mechanical strength and maximum working temperature.

Graphite Plate

Graphite plates are flat graphite workpieces applied for high-temperature supports, furnace fixtures, electrolysis, heat treatment, sealing bases and machined graphite components. They can be cut, drilled and machined strictly per engineering drawings.

Graphite Sheet

Graphite sheets refer to flat industrial graphite materials for mechanical processing at Tennry. Our graphite sheets are rigid machined/cut industrial boards, excluding flexible graphite gaskets and thermal cooling graphite sheets for electronics.

Graphite Rod

Graphite rods are cylindrical graphite stock for electrodes, stirring shafts, mandrels, plsitioning pins and furnace parts, as well as custom turned graphite components. They are widely chosen for excellent electrical conductivity, thermal resistance and superior machinability.

Graphite Bar

Graphite bars are rectangular or round graphite blanks for machining, electrode production, high-temperature tooling and customized graphite workpieces. They can be cut and processed into various shapes to meet different application demands.

Graphite Tube

Graphite tubes are hollow cylindrical graphite parts used in furnace hot zones, protection sleeves, gas circulation assemblies, high-temperature equipment and custom graphite modules.

Graphite Ring

Graphite rings are percision-machined graphite components for sealing, load-bearing support, anti-wear and high-temperature mechanical systems. Customization is available on  inner diameter, outer diameter, thickness and material grade.

EDM Graphite Block

EDM graphite blocks are specialized graphite blands for manufacturing electrodes in electrical discharge machining. Featuring good conductivity and easy machining into complex profiles, they are widely used in precision mold fabrication.

Graphite Electrode

Artificial graphite electrodes feature low resistivity, excellent electrical conductivity, low ash content, dense structure, superior oxidation resistance and high mechanical strength, making them the optimal conductive material for electric arc furnaces, ladle furnaces and submerged arc furnaces.

Custom Graphite Machining

Custom graphite machining covers turning, milling, drilling, grinding and surface finishing to process graphite blanks into finished components in accordance with drawings, samples or actual working conditions.

Machined Graphite Parts

Machined graphite parts are shape-customized components processed from graphite blanks via precision machining.  Typical applications include molds, bearings, bushings, rotors, sealing rings, electrodes and furnace spare parts.

Custom Graphite Parts

Custom graphite parts are tailor-made graphite components produced as per customer drawings, samples, dimensional requirements, material grades and on-site service conditions.

CNC Graphite Machining

CNC graphite machining adopts computer numerical control equipment for high-precision shaping of graphite material. It is ideal for graphite molds, electrodes, bearings, bushings, sealing rings and intricate graphite assemblies.

Graphite Fabrication

Graphite fabrication refers to the whole process of converting raw graphite materials into industrial finished parts through cutting, precision machining, bonding, surface finishing and assembly.

Graphite Deep Processing

Graphite deep processing upgrades raw graphite blanks into high-value finished products, such as graphite molds, rotors, bearings, bushings, vanes, sealing rings and non-standard industrial graphite components.

OEM Graphite Parts

OEM graphite parts are graphite components manufactured strictly following the drawings, technical specifications and application requirements provided by original equipment manufacturers.

Drawing-Based Customization

Drawing-based customization realizes graphite part production based on technical drawings, CAD files, STEP models, PDF documents or physical samples supplied by clients.

Graphite Material Selection

Graphite material selection means selecting the proper graphite grade according to working temperature, mechanical strength, purity, bulk density, electrical conductivity, friction coefficient, corrosion resistance and machining requirements. 

Graphite Crucible

Graphite crucible are graphite-made vessels for melting gold, silver, copper, aluminum and other non-ferrous metals, with favorable thermal conductivity and outstanding high-temperature resistance.

Clay Graphite Crucible

Clay graphite crucibles are compounded from graphite and clay raw materials, widely adopted in foundries and metal melting scenarios requiring stong thermal shock resistance.

Graphite Mold

Graphite molds are precision-machined graphite toolings for metal casting, glass forming, sintering and hot pressing molding. Custom design based on drawings is supported.

Graphite Casting Mold

Graphite casting molds are engineered to shape molten metals into target profiles, commonly used for casting copper, aluminum, precious metals and special industrial components.

Graphite Ingot Mold

Graphite ingot molds solidify molten metals into ingots, bars and bullions, mainly applied in the casting of gold, silver, copper, aluminum and other precious metals.

Graphite Mould

A graphite mould is the British spelling variant of graphite mold. Both terms refer to graphite tools used for casting, forming or shaping materials under high-temperature conditions.

Custom Graphite Mold

Custom graphite molds are developed according to customer drawings, sample dimensions, cavity design, metal type and specific molding requirements.

Graphite Mold Cavity

A graphite mold cavity is the hollow inner profile of a mold that determines the final geometric shape of cast products.

Two-Part Graphite Mold

Two-part graphite molds consist of two matched mold halves, designed for casting workpieces with complex geometries and special structural features.

Graphite Felt

Graphite felt is carbon-based thermal insulation material used in vacuum furnaces, heat treatment equipment, photovoltaic furnaces and high-temperature thermal field systems.

Soft Graphite Felt

Soft graphite felt is flexible thermal insulation material for high-temperature furnace lining and thermal shielding protection.

Rigid Graphite Felt

Rigid graphite felt is shaped graphite insulation with higher structural rigidity than soft felt, applied in vacuum furnaces, heat treatment lines and thermal field construction.

Carbon-Carbon Composite

Carbon-carbon composite( C/C composite)  is carbon fiber-reinforced carbon matrix structural material for high-temperature load-bearing parts, characterized by low density, high specific strength and excellent thermal dimensional stability.

C/C Composite Materials

C/C composite materials are carbon fiber-reinforced carbon matrix composites, used for furnace hot zone parts, photovoltaic thermal fields, aerospace structural parts and custom high-temperature thermal components.

Reinforced Carbon-Carbon

Reinforced carbon-carbon is a carbon-carbon composite material strengthened by carbon fiber reinforcement, tailored for scenarios requiring ultra- high strength and extreme high-temperature resistance.

Furnace Hot Zone

The furnace hot zone refers to the high-temperature area inside vacuum furnaces, heat treatment furnaces and photovoltaic furnaces. Graphite felt, graphite plates and C/C composites are the mainstream thermal structural materials here.

Thermal Insulation Material

Thermal insulation materials minimize heat loss and stabilize temperature uniformity inside high-temperature equipment, among which graphite felt is the most widely used high-temperature thermal insulation product.

Intumescent Material

An intumescent material expands rapidly upon heating to form a dense char barrier that inhibits flame propagation, smoke diffusion and heat transfer.

Intumescent Fire Protection Material

Intumescent fire protection materials are core materials for passive fire protection systems, including fire door sealing strips, pipe fire collars, fire ventilation grilles and fire-resistant sheets.

Intumescent Fire Strip

Intumescent fire strips are fitted around fire door panels and frames. They swell under fire heat to seal gaps and block fire & smoke penetration.

Intumescent Strip

Intumescent strips are expandable fireproof tapes installed on door edges, structural joints and fire-rated enclosures for fire blocking.

Smoke Seal

Smoke seals are mounted on door perimeters to limit smoke leakage, usually assembled together with intumescent strips for fire door systems.

Fire and Smoke Seal

Fire and smoke seals integrate intumescent fire strips and smoke sealing gaskets to realize both fire resistance and smoke isolation functions.

Intumescent Fire Sheet

Intumescent fire sheets are sheet-shaped passive fire protection materials that expand under high heat to seal openings and protect building structural components.

Firestop Collar

Firestop collars are intumescent sleeves wrapped around plastic pipes penetrating walls or floors. They expand in fire conditions to block pipeline openings and prevent fire spread.

Fire Collar

Fire collar is the common alias for firestop collar. serving for penetration sealing of pipelines in passive fire protection engineering.

Intumescent Fire Collar

Intumescent fire collars are filled with heat-expandable fillers that seal plastic and PVC pipes penetrations automatically when exposed to fire.

Intumescent Fire Grille

Intumescent fire grilles are installed on fire doors and wall ventilation openings. They allow normal air circulation and expand under heat to cut off fire and smoke spread.

Intumescent Air Transfer Grille

Intumescent air transfer grilles are fire-rated ventilation parts for air circulation across fire doors and partition walls while retaining passive fire protection performance.

Fire-Rated Ventilation Grille

Fire-rated ventilation grilles provide air exchange for fire compartment structures without compromising overall fire safety performance.

Passive Fire Protection

Passive fire protection consists of building materials and fixed systems that restrict the spread of fire, smoke and heat without automatic power-driven activation.

Graphite Rotor

Graphite rotors are machined graphite core parts for aluminum liquid degassing systems. They disperse inert gas into molten aluminum to remove hydrogen and metallic impurities effectively.

Graphite Shaft

Graphite shafts are normally paired with graphite rotor for aluminum degassing service, capable of enduring long-term exposure to molten metal and high-temperature environments.

Carbon Vane

Carbon vanes are sliding carbon-graphite components for vacuum pumps, air compressors and rotary vane equipment, featuring low friction coefficient, excellent wear resistance and stable continuous operation.

Graphite Vane

Graphite vanes share similar performance with carbon vanes, deployed in pumps, compressors and dry-running mechanical rotary systems.

Graphite Bearing

Graphite bearings are self-lubricating bearing elements made of graphite or carbon-graphite composites, suitable for high-temperature, dry-running, low-friction or corrosive working environments.

Graphite Bushing

Graphite bushings are cylindrical sleeve parts for friction reduction and radial support of rotating or sliding shafts, customizable on inner diameter, outer diameter and overall length.

Carbon Graphite Bearing

Carbon graphite bearings are fabricated from carbon-graphite composites, widely used in pumps, compressors, mechanical seals and industrial equipment demanding self-lubrication properties.

Carbon Graphite Bushing

Carbon graphite bushings are precision-machined sleeves designed for anti-wear, low-friction and dry-operation mechanical transmission systems.

Graphite Seal Ring

Graphite seal rings are machined graphite rings for sealing assemblies, pumps, compressors, high-temperature equipment and mechanical modular systems.

Graphite Piston Ring

Graphite piston rings are carbon-graphite elements used in certain compressors and pumps where low friction and superior wear resistance are essential.

Bulk Density

Bulk density denotesthe mass per unit volume of the porous artificial graphite blanks. It directly determines mechanical strength, porosity, machinability and comprehensive service performance.

Grain Size

Grain size refers to the particle dimension of graphite aggregates inside the material. Fine-grain graphite is prioritized for precision machining and high-end EDM electrodes.

Ash Content

Ash content is the non-carbon residual substance remaining after graphite complete combustion. A lower ash content corresponds to higher-purity graphite.

Electrical Conductivity

Electrical conductivity defines a material's capability to conduct electric current. Graphite is extensively used in electrodes and carbon brushes owing to its excellent conductive property.

Thermal Conductivity

Thermal conductivity describes a material's heat transfer capacity. Graphite products deliver superior thermal conduction for various high-temperature working scenarios.

Thermal Shock Resistance

Thermal shock resistance refers to artificial graphite's ability to withstand drastic temperature swings without cracking or structural damage.

Oxidation Resistance

Oxidation resistance evaluates how well artificial graphite resists oxidative degradation under continuous high-temperature service.

Wear Resistance

Wear resistance is graphite’s anti-abrasion capability against friction, sliding contact and mechanical friction loss.

Self-Lubricating property

Self-lubricating property means a material can reduce friction coefficient without external liquid/grease lubricants, which is the core advantage of carbon graphite bearings and bushings.

Machinability

Machinability indicates the ease of processing artificial graphite via turning, milling, drilling and grinding into customized finished parts.

Working Temperature

Working temperature represents the safe and stable temperature range for long-term service of artificial graphite products.

Tolerance

Tolerance is the permissible dimensional deviation range for machined components, a critical index for customized graphite bearings, bushings, sealing rings and molds.

Surface Finish

Surface finish describes the roughness and smoothness of machined graphite surfaces, which affects sealing effect, friction performance and assembly matching accuracy.

Material Grade

Material grade stands for the specific formula and production process of artificial graphite. Grades differ in bulk density, grain size, mechanical strength, purity and impregnation treatment status.

Impregnated Graphite

Impregnated graphite is treated with resin, metal or other fillers to upgrade its mechanical strength, bulk density, sealing performance and wear resistance.

High Purity Graphite

High-purity graphite features ultra-low impurity content, widely applied in high-temperature furnaces, semiconductors, photovoltaics and precision manufacturing industries.

Isostatic Graphite

Isostatic graphite is high-performance graphite produced by isostatic pressing, featuring homogeneous internal structure, fine grain size and outstanding precision machinability.

Molded Graphite

Molded graphite is shaped by compression molding, supplied as blocks, rods, plates and semi-finished blanks for follow-up precision machining.

Carbon Graphite

Carbon graphite composites retain graphite's natural self-lubricating property, the preferred material for bearings, bushings, vanes, brushes and sealing components.