CFC Hot Press Mould For Crucible

We can provide graphite materials with high density and high compressive strength. The graphite exothermic welding mold made of this material has a long service life and is welcomed by customers.

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Description

Why Precision CFC Hot Press Moulds Matter

In demanding high-temperature applications such as vacuum furnaces and crystal growth systems, structural integrity and dimensional precision are critical. Conventional tooling materials-like metals or monolithic graphite-often degrade under thermal stress, leading to warping, particle generation, and shortened service life.

Carbon-carbon composite (C/C) hot press moulds offer a high-performance alternative. Known for their superior strength-to-weight ratio, low thermal expansion, and exceptional thermal shock resistance, these moulds ensure stability during repeated thermal cycles.

At SHJ-CARBON, we engineer and supply C/C hot press moulds specifically designed for forming insulation cylinders and other complex geometries used in high-temperature assemblies. Our moulds support uniform compaction, dimensional accuracy, and clean processing, making them ideal for advanced thermal field design in both semiconductor and industrial applications.

Recommended specifications

High-Performance FEATHERMO C/C Composites

Grade	Bulk Density	Flexural Strength	Youngs Modulus	Interlaminar C Shear Strength	ompressive Strength	Electrical Resistivity	Temperature Rating
FE-80 Short fiber)	1.65g/cm³	200MPa	45GPa	18MPa	120MPa	20μS2m	2000℃
FE-12 [Long fiber]	1.2g/cm³	120MPa	40GPa	10MPa	100MPa	15~40μS2m	2000℃
FE-14 [Long fiber]	1.4g/cm³	120MPa	40GPa	10MPa	100MPa	15~40μΩm	2000℃
FE-25 [Long fiber]	1.5g/cm³	150MPa	30GPa	12MPa	140MPa	15~30μs2m	2000℃

What is CFC Hot Press Moulding?

CFC hot press moulding involves shaping carbon fiber composites under controlled heat and pressure. This process enhances the material's density and mechanical properties, producing parts with superior strength and thermal stability.

Using this method, we form complex shapes like insulation cylinders that maintain dimensional precision essential for vacuum and crystal furnace environments. The hot press process ensures uniform fiber alignment and resin impregnation, reducing porosity and improving thermal conductivity.

This technology enables SHJ-CARBON to deliver moulds that withstand harsh thermal cycles without cracking or deforming. Our expertise in hot press moulding supports the production of carbon-carbon composite components with consistent quality and long operational life.

CFC crucible

Key Advantages of CFC Hot Press Moulds

Exceptional thermal stability ensures consistent performance at high temperatures.

Lightweight design reduces handling effort and extends service life.

Superior heat insulation improves product quality and process uniformity.

Energy-efficient structure lowers operating costs and boosts furnace productivity.

Applications in Carbon-Carbon Crucible

Engineered for Extreme Thermal Demands

Carbon-carbon crucibles are built to handle the most demanding thermal conditions-whether in vacuum melting, crystal pulling, or high-purity material synthesis. Their outstanding thermal stability, low thermal expansion, and chemical inertness make them a superior alternative to traditional graphite or ceramic crucibles in precision applications.

At SHJ-CARBON, we manufacture C-C crucibles using hot press molding, which delivers consistent material density and mechanical integrity. This ensures excellent resistance to cracking, deformation, or particle shedding even after repeated thermal cycling at temperatures above 2000°C.

High Purity and Dimensional Control in Every Batch

Applications such as sapphire growth, rare-earth metallurgy, or compound semiconductor production rely on carbon-carbon crucibles for their low contamination risk and long service life. Each crucible is designed to match the thermal layout of the customer's furnace, including options for wall thickness, surface finish, and tapering angle.

We offer tight-tolerance production and customizable geometries, ensuring smooth loading and alignment while minimizing heat loss and unnecessary mass. These properties not only extend crucible life but also help stabilize heating efficiency across batches.

Built for Integration, Backed by Engineering

SHJ-CARBON provides engineering support from design to prototyping, enabling clients to quickly adapt crucible shapes to evolving furnace designs. Whether the goal is to reduce replacement frequency, achieve better heat uniformity, or reduce contamination, our team delivers fit-for-purpose solutions that align with real production needs.

SHJ-CARBON's Expertise in High-Temp Thermal Field Design

We serve clients across industries like vacuum heat treatment, semiconductor manufacturing, and crystal growth. Our expertise goes beyond materials-we work closely with you to refine thermal field design, improving how heat distributes within your system.

From initial material advice to reviewing your CAD models, our team provides hands-on support to make sure your designs maximize efficiency and reliability. We also assist with rapid prototyping to speed up development and reduce trial cycles.

With a deep understanding of carbon-carbon composites and thermal challenges, SHJ-CARBON helps you develop solutions that stand up to demanding high-temperature environments.

carbon carbon composite materials