Carbon Carbon Plates

JUN TENG's Carbon Carbon Plates are engineered for the most demanding high-temperature environments—up to 2800°C in inert atmospheres. Unlike graphite or metal plates that crack, deform, or delaminate under thermal cycling, our carbon-carbon plates maintain structural integrity through thousands of heating and cooling cycles. The secret lies in our proprietary multi-cycle CVD densification process, which fills every internal void with pyrolytic carbon, creating a material that is lightweight (1/4 the density of graphite), thermally conductive, and remarkably durable.

Complete Product Technical Parameter Table & Peer Product Comparison Table

All data in the table are from independent third-party authoritative testing institutions, test reports can be provided with goods for customer inspection and bidding filing

Table 1 Core Technical Parameters of JUNTENG Carbon-Carbon Composite Plate

Table 2 JUNTENG Carbon-Carbon Plate VS Ordinary Market Carbon-Carbon Plate Comparison Table

Independent research and development of production process flow

Unlike the only weaving process for unidirectional carbon fiber cloth, Junteng's Carbon Carbon Plates have six high-tech barriers to entry in the core production process. Each process is inspected throughout the entire process to control product quality from the source

1. Weaving of high-purity carbon fiber prefabricated bodies: Using brand new 12K continuous carbon fiber and adopting two-dimensional flat weaving or three-dimensional interlocking weaving technology, uniform and dense prefabricated bodies are woven to avoid the problem of loose bodies in recycled materials of inferior products;

2. High temperature pre oxidation treatment: The woven prefabricated body is pre oxidized in a 450℃constant temperature furnace to eliminate internal stress in the fibers and lay a foundation for subsequent dense forming;

3. Multi cycle CVD chemical vapor densification (core process): Perform 4-6 cycles of vapor deposition to evenly fill the gaps in the fiber body with pyrolytic carbon, greatly improving the density of the board and solving the problem of loose pores inside ordinary carbon boards;

4. Ultra high temperature graphitization: The semi-finished product is sent to a 2400℃graphitization furnace for high-temperature crystallization treatment, which improves the thermal conductivity and high-temperature mechanical strength of the board;

5. Precision CNC machining: According to customized customer drawings, complete precision machining such as cutting, drilling, slotting, polishing, etc., to meet the dimensional accuracy requirements of precision thermal field equipment;

6. Anti oxidation coating treatment (optional): For customers using weak oxidation conditions, a high-temperature anti-oxidation protective layer can be sprayed on the surface of the board to extend the product's service life.

Every finished carbon sheet undergoes density testing, bending resistance testing, and thermal shock resistance testing before leaving the factory. Unqualified semi-finished products are directly reworked or scrapped and will never enter wholesale or bulk order channels.

Seven core product selling points and targeted solutions to customer pain points

Based on thousands of industrial customer consultation records, we have sorted out the core difficulties in purchasing Carbon Carbon Plates1, matched Junteng's exclusive advantages one by one, and provided corresponding solutions:

1. Ultra high temperature resistance and stable structure, solving the problem of cracking and delamination of sheet metal. Most manufacturers use sheet metal for a long time at ultra-high temperatures, which makes it prone to cracking, delamination, and deformation. The Juntengduo cycle densification process tightly combines fibers with pyrolytic carbon, and can withstand thousands of cold and hot cycles without damage, making it suitable for long-term continuous production line operations.

2. The factory provides direct supply without intermediaries, balancing high quality and affordable pricing. As a direct source manufacturer of carbon carbon composite materials with 18 years of deep cultivation in the industry, we have our own complete set of production equipment and no dealer markups. Compared to traders with the same density specifications, traders have a significant price advantage, and large-scale purchases can enjoy long-term wholesale preferential policies.

3. Full size flexible customization service to meet diverse production needs. Standard sizes are available for immediate delivery in stock all year round; Support customization of any length, width, thickness, hole position, groove body, polishing, and anti-oxidation coating. Both small laboratory test boards and large furnace thermal field substrates can be produced on demand without strict minimum order quantity restrictions.

4. Excellent thermal conductivity and lightweight texture, reducing equipment energy consumption. The density of carbon carbon board is only 1/4 of graphite board, with fast and uniform thermal conductivity, which can effectively reduce furnace heating energy consumption and lower long-term electricity costs for customers; Lightweight materials can also reduce the load-bearing losses of the furnace body.

5. Corrosion resistance, stable chemical properties, suitable for special working conditions, does not react with inert gases such as nitrogen, argon, vacuum, etc., resists metal vapor corrosion in high-temperature furnaces, does not undergo chemical deterioration, and is widely used in corrosive thermal field environments such as semiconductors and metal sintering.

6. Free sample testing service, reducing the cost of purchasing trial and error. New customers can apply for free samples of carbon carbon boards, and the raw materials and processes of the samples are completely consistent with the bulk orders. Customers can send third-party organizations for testing, and only place formal orders after meeting performance standards to avoid quality risks in large-scale procurement.

7. Complete set of qualifications and testing reports, smooth and worry free bidding acceptance, and complete supporting materials can be provided: factory self inspection report, ISO9001 certification, high temperature carbon composite material industry access qualifications, product density and mechanical testing data. Government bidding and designated procurement by large companies can directly use the full set of documents without the need for repeated testing.

Multi industry application scenarios and segmented uses

1. Application of thermal field components in the photovoltaic industry: silicon wafer sintering furnace carrier plate, thermal field support frame, thermal insulation carbon plate. High temperature resistance and low impurity precipitation ensure the yield of silicon wafer production, and multiple photovoltaic equipment manufacturers purchase in bulk for a long time.

2. Application in semiconductor electronics manufacturing: wafer annealing furnace substrate, ion implantation fixture, high-temperature reactor lining. The impurity content is extremely low, the dimensional accuracy is stable, and it meets the high-precision production standards of semiconductors.

3. Application of Powder Metallurgy&Metal Sintering Furnace: Alloy Powder Sintering Tray, High Temperature Mold, Metal Heat Treatment Bearing Plate. Excellent thermal shock resistance, avoiding frequent replacement of board cracking and reducing production line downtime losses.

4. Application in the field of composite material hot processing: Carbon fiber composite molding molds, high-temperature curing fixtures, lining plates for vacuum hot pressing furnaces, replacing bulky graphite molds and achieving lightweight production.

5. Purpose of laboratory research equipment: small high-temperature tube furnace lining, experimental sintering table, customized micro carbon testing plate, small batch sample orders without complex minimum order quantity requirements.

Product operation instructions and important precautions

Instructions for use and operation

1. Before installation: Clean the dust and processing residue on the surface of the carbon carbon board to avoid impurities evaporating and contaminating the workpiece at high temperatures;

2. Furnace operation: The board is placed flat on the furnace support to avoid single point compression force, and a thermal expansion gap is reserved according to the size of the board;

3. Heating standard: Adopt segmented heating, with a heating rate not exceeding 8℃/minute, to prevent rapid heating from causing internal thermal stress cracks;

4. Daily maintenance: After long-term use in an inert environment, regularly remove and clean the surface metal deposits to extend the service life.

Important precautions

1. This Carbon Carbon Plate is not suitable for long-term use in air oxidation environments above 400℃; If you need anti-oxidation, order a customized version with anti-oxidation coating in advance;

2. During the installation process, avoid direct impact of sharp metal objects on the board surface to prevent damage to the surface fibers;

3. The storage environment must be dry and sealed to prevent moisture absorption. Damp boards need to be baked at low temperatures before entering the high-temperature furnace;

4. It is prohibited to use strong acid and alkali cleaning solutions to wipe the surface of the board. Only a dust-free dry cloth can be used for cleaning.

Authoritative qualification certification

1. ISO9001 international quality management system certification, standardized production control throughout the entire process;

2. Third party testing report from the National Non metallic Composite Materials Testing Center (comprehensive testing of density, bending resistance, thermal shock resistance, and other indicators);

3. High temperature carbon composite material industry access qualification, recognized by domestic photovoltaic and semiconductor equipment manufacturers;

4. Export CE certification. As a professional exporter of carbon carbon panels, we can provide complete foreign trade customs clearance documents and support the export of large quantities of overseas orders;

5. The factory has a self built physical testing laboratory registration certificate, and all testing data is traceable, supporting customers to randomly sample and test at the factory.

About us

JUNTENG is a professional Carbon Carbon Plates manufacturer and factory direct exporter with 18 years of independent research and production experience. It has a complete industrial chain from carbon fiber preform weaving, chemical vapor deposition densification to high-temperature graphitization. Our factory has built a professional physics testing laboratory that can real-time detect various indicators such as thermal conductivity, bending strength, and thermal shock resistance of carbon carbon sheets. All products are strictly produced in accordance with national composite material standards, with a complete set of third-party testing reports, ISO9001 quality management system certification, and high-temperature material industry qualification certificates.

Carbon Carbon Plates with regular specifications are available in stock all year round, supporting customized sizes, thicknesses, and surface treatments. We can undertake small batch sample orders and large batch whole order purchases, and new customers can apply for free sample testing. Different from ordinary low-density carbon products on the market, Junteng adopts a multi cycle densification process, which ensures stable internal structure and longer service life.

Frequently Asked Questions and Answers

Q1: Which density carbon board should I choose for my furnace equipment?  

A1: Low density 1.45-1.55g/cm³suitable for insulation fittings; Medium density 1.6~1.7g/cm³is the mainstream model of universal thermal field bearing plates, with sufficient stock available; High density 1.75~1.85g/cm³is used for sintering fixtures with high loads and frequent cold and hot cycles, supporting customized density production.

Q2: Can carbon carbon sheets be processed according to special drawing dimensions? What is the minimum order quantity? 

A2: Standard size blanks have no minimum order quantity and can be purchased with just 1 piece; The minimum order quantity for customized products with non-standard special sizes and drilling slots is 1 blank; We can also negotiate OEM OEM packaging services.

Q3: What is the difference in service life between Junteng products and ordinary carbon sheets?  

A3: Under the same operating temperature and cycle frequency conditions, the service life of Juntengduo cyclic densified carbon carbon sheet is 3-5 times longer than that of a single simple densified ordinary product, effectively reducing customer replacement frequency and comprehensive costs.

Q4: Can I apply for test samples before bulk procurement?  

A4: All new customers can apply for free samples, and the sample materials, production processes, and bulk orders are completely consistent. We support customers to submit third-party organizations for performance testing.

Transaction protection and full cycle after-sales service

1. Factory inspection guarantee: Domestic and foreign buyers can visit Junteng's production workshop, CVD densification furnace, and testing laboratory at any time to randomly select finished boards for density and thermal shock resistance testing; The measured data does not match the official report. A full refund will be issued and all logistics costs will be borne.

2. Delivery guarantee for spot goods: The goods will be shipped within 48 hours after confirming the order specifications; Sign a formal contract for customized processing orders to specify the delivery period, and pay liquidated damages for overdue payments.

3. Legitimate contract and invoice guarantee: All large-scale orders are signed with standardized purchase and sales contracts, and value-added tax special invoices are issued through public to public transfers; Export orders provide certificates of origin, CE certification, and a complete set of customs clearance documents.

4. Quality compensation guarantee: Sampling and testing within 7 days of receiving the goods. If the agreed technical indicators are not met, unconditional returns and exchanges will be made, and all round-trip shipping costs will be borne by Junteng factory.

5. Professional technical after-sales service: Composite material professional engineers provide one-on-one free guidance on furnace body matching, temperature rise curve setting, plate installation and maintenance; Large scale photovoltaic and semiconductor production line projects can arrange engineers to provide on-site technical support.

6. Long term cooperation preferential policies: Long term designated wholesale customers enjoy exclusive discounts for annual bulk purchases, priority production scheduling, and free regular performance retesting services.