Shaped Carbon Carbon Parts

JUNTENG has its own factory and can provide you with customizable Shaped Carbon Carbon Parts. From 3D pre-forming weaving, high-temperature graphitization treatment, to precise milling and integrated molding, complex curved surface structures, opening structures, and stepped irregular structures can be manufactured according to the drawings and samples. The products have a high temperature resistance of up to 2200℃, high purity and no precipitates, and are suitable for non-standard fixtures in photovoltaic and semiconductor vacuum thermal fields. We support on-demand processing of SiC anti-oxidation coatings. The technical team can optimize the drawing design one-on-one and provide free processing solutions. Welcome to consult samples based on the drawings or samples!

Comparison Table of Basic General Parameters

Introduction to the entire process of core technology

Junteng's Custom Shaped Carbon Carbon Parts adopt a closed-loop integrated customized processing technology, with 12 quality inspection and control processes throughout the process, suitable for various complex and irregular drawing requirements:

1. Drawing docking optimization: Engineers review customer drawings for free, optimize structures for high-temperature working conditions, and avoid high-temperature cracking and stress concentration problems;

2. Customized weaving of 3D prefabricated blanks: Customize carbon fiber 3D woven blanks based on the shape of the finished product to ensure fiber continuity in the irregular parts and improve overall strength;

3. Multiple vacuum high-pressure impregnation: Fill the internal pores of the billet, improve overall density, and avoid powder delamination during later processing;

4. Segmented low-temperature carbonization treatment: solidify the carbon matrix and eliminate stress inside the billet;

5.2800℃ultra-high temperature graphitization purification: removes ash and impurities from the body, ensuring high cleanliness requirements for use;

6. Five axis linkage CNC precision machining: diamond tool milling, drilling, slotting, surface grinding, precise replication of complex irregular contours;

7. Surface polishing, deburring, and spraying SiC anti-oxidation coating as needed;

Three coordinate full-size accuracy testing and appearance inspection can only be packaged and shipped after passing the inspection.

Application scenarios and practical uses

1. Photovoltaic new energy industry: single crystal/polycrystalline ingot furnace shaped insulation support frame, arc-shaped thermal field pressure plate, hollow carbon support, non-standard connection base;

2. Semiconductor precision equipment: CVD furnace, vacuum diffusion furnace shaped insulation chamber, wafer bearing shaped base, high-purity furnace dedicated hollow tooling;

3. Industrial high-temperature heat treatment: non-standard fixtures for vacuum sintering furnaces, carbonization furnaces, shaped insulation baffles, and stepped thermal field fixing components;

Aerospace and Research Laboratory: High temperature tube type test furnace with irregular thermal protection components, customized curved support for thermal simulation equipment, and small-scale non-standard insulation structure in the laboratory.

Standardized usage instructions

1. Customized shaped parts have completed size verification before leaving the factory, and the surface processing dust of the workpiece should be cleaned before assembly to avoid pollution caused by entering the furnace;

2. When assembling irregularly shaped hollow and thin-walled carbon parts, symmetrical segmented locking is used, combined with our factory's matching carbon carbon washers and bolts to disperse the force;

3. Non SiC anti-oxidation coating shaped parts can only be used in inert environments such as vacuum, nitrogen, and argon; The customized solution of anti-oxidation coating must be selected for aerobic high-temperature working conditions;

4. For the first use of newly customized workpieces, perform segmented low-temperature pre drying to remove internal adsorbed water vapor and prevent cracking during the heating process;

5. Thin walled components with irregular curved surfaces should avoid single point heavy pressure and local forced compression to reduce the risk of structural fracture.

Precautions for use

Carbon carbon composite materials belong to brittle materials, and customized shaped thin-walled and hollow workpieces have lower impact resistance. It is strictly prohibited to drop from high altitude or hit by hard objects; Products without antioxidant coating cannot work in air environments above 800℃for a long time, as it will continue to oxidize and cause damage; The structure of irregular parts is complex, and frequent disassembly and assembly are not recommended.

Repeated stress can easily cause edge and corner breakage; Finished products need to be stored in a dry and ventilated warehouse, as they are prone to delamination and cracking when exposed to moisture and water during high temperature use; It is prohibited to directly bond and share with metal shaped parts such as molybdenum and stainless steel at high temperatures, as it may cause metal impurities to contaminate high-purity furnaces.

Customer Core Concerns and Targeted Solutions Table

Authoritative qualifications and certifications

The factory has ISO9001 international quality management system certification and safety production standardization qualifications; All Custom Shaped Carbon Carbon Parts can provide temperature resistance, thermal expansion, ash content, and mechanical performance testing reports issued by CNAS laboratory; For several consecutive years, the company has been designated as a customized supplier for multiple listed companies in the photovoltaic and semiconductor industries.

The supplier's qualifications and cooperation case proof documents can be provided for customer verification; Each customized irregular part comes with an independent processing quality inspection form, and the raw material batch, processing procedure, and testing data can be traced throughout the process to prevent the delivery of unqualified customized parts to customers.

Why choose JUNTENG?

JUNTENG has 18 years of manufacturing experience and is one of the few origin factories in the industry that possess the capabilities from carbon fiber fabric weaving, impregnation carbonization, ultra-high temperature purification to five-axis precision CNC integrated processing. We focus on custom-shaped Shaped Carbon Carbon Parts, which are distinctly different from the standard carbon carbon plates and fasteners in the market.

Our products are specifically designed for various non-standard high-temperature vacuum thermal field equipment and can manufacture complex-structured components. All finished products' material purity, temperature resistance, and thermal expansion coefficient, etc. have been tested by a third-party laboratory CNAS, and complete test records are retained for each batch. The data is true and traceable.

Over the years, we have undertaken non-standard renovation projects in multiple fields such as photovoltaics, semiconductors, heat treatment, and aerospace laboratories. We have completed the delivery of thousands of non-standard parts. With a mature process system, a professional material structure engineer team, and a standardized full-process quality inspection system, we provide one-stop solutions for industrial problems such as the lack of suitable high-temperature accessories, low processing accuracy of non-standard parts, long connection cycle with multiple manufacturers, and the problem of easy contamination in high-purity working environments.

Frequently Asked Questions

Q1: Without complete processing drawings, can customization be made by only providing samples? 

A: Support reverse mapping of physical samples, engineers use three coordinate scanning to replicate dimensions, optimize high-temperature applicable structures, and issue processing drawings for confirmation before production.  

Q2: Will the service life of thin-walled hollow shaped carbon parts be significantly shortened?  

A: During the weaving stage, we selectively thickened the fiber layout of the stress bearing parts and optimized the structure to disperse thermal stress before processing. Under the same working conditions, the service life is only slightly reduced compared to solid parts, meeting the long-term production needs of the equipment.  

Q3: Can customized anti-oxidation coatings be applied to shaped parts used in aerobic environments?  

A: All irregular structures can be customized with SiC dense anti-oxidation coatings, which evenly cover curved surfaces and hollow inner walls, and can adapt to air conditions up to 1600℃.  

Q4: How long is the delivery time for customizing a shaped carbon component? 

A: Simple structures take 7 working days, complex curved hollow structures take 10-15 working days, and prefabricated blanks in stock can significantly shorten the delivery cycle.