At Huixian Jincheng Abrasive Mould Factory, we manufacture premium high-purity graphite sintering molds, graphite trays, graphite boats and custom graphite components engineered for the most demanding thermal processing environments. Our graphite products are widely used in powder metallurgy sintering, vacuum furnace processing, rare earth permanent magnet (NdFeB) sintering, precious metal refining, and continuous casting operations worldwide.
With over a decade of specialized graphite machining experience and more than 50 CNC production machines, we deliver tight-tolerance graphite components that ensure consistent sintering results, extended service life, and reduced downtime for your production line.
Why Choose Our Graphite Sintering Molds?
Every graphite mold and tray we produce is manufactured from carefully selected isostatic graphite or molded graphite raw materials, with bulk densities ranging from 1.78 to 1.88 g/cm³ and ash content as low as 500 ppm. Our precision CNC machining achieves tolerances down to ±0.01 mm, ensuring uniform heat distribution and repeatable part quality batch after batch.
Key Product Features
Technical Specifications
The following table outlines the standard material properties of our graphite sintering molds and trays. Custom grades can be selected based on your specific application requirements:
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Our graphite sintering molds and graphite furnace fixtures are trusted by manufacturers across multiple industries:
01
Powder Metallurgy (PM)
Sintering of iron, copper, stainless steel, and cemented carbide parts; graphite dies and punches for hot pressing and SPS (Spark Plasma Sintering).
02
Rare Earth Permanent Magnets (NdFeB)
High-purity graphite sintering boats and trays for neodymium magnet production; low ash content prevents magnetic property degradation.
03
Vacuum & Controlled Atmosphere Sintering
Graphite trays, graphite boats, graphite plates, and support fixtures for batch and continuous vacuum furnaces up to 2400°C.
04
Precious Metal Refining
High-purity graphite crucibles and ingot molds for gold, silver, platinum, and palladium melting and casting.
raphite Material Selection Guide
Choosing the right graphite grade is critical for performance and cost optimization. The table below compares the three primary graphite forming methods we offer:
| Parameter | Isostatic Graphite (CIP) | Molded Graphite | Extruded Graphite |
|---|---|---|---|
| Forming Method | Cold Isostatic Pressing | Compression Molding | Extrusion |
| Grain Structure | Ultra-fine, isotropic | Medium, semi-isotropic | Coarse, anisotropic |
| Property Uniformity | Excellent (all directions) | Good | Direction-dependent |
| Machining Precision | Ultra-high (±0.005 mm) | High (±0.01 mm) | Medium (±0.05 mm) |
| Cost Level | Premium | Medium | Economical |
| Best For | EDM electrodes, semiconductor, rare earth sintering, precision molds | Powder metallurgy trays, vacuum furnace parts, general molds | Large electrodes, continuous casting dies, big crucibles |
About Huixian Jincheng Abrasive Mould Factory
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