Cemented Carbide Anvil
JIMS CARBIDE is one of the first companies to develop and produce carbide anvils used in the polycrystalline diamond manufacturing process. Our advanced manufacturing processes and world class quality system has enabled JIMS CARBIDE to become the largest manufacturer of carbide anvils.
Product Description
Summation of All Advanced Technology and Precised Production Experience.
>Ultimate Tungsten Carbide Technology and Experience
>Durable to Extreme High Temperature and Pressure
>Precise Machining for Diamond, PCD and PCBN
>Beyond ISO9001 and ISO14001
>Extreme Diamond Manufacturing Technology
>Tungsten Carbide Technology to manufacture Anvil and Die
>Durable to 2,000 times of 1 hour pressuring cycling to 1,500°C and 50,000 bar
>Precised Machining Experience
>Fine powder mixture control
>More critical pressure up to 60,000 bar
>Milling and grinding experience for diamond, PCD and PCBN
Carbide Anvil
Cemented carbide anvil holders play a critical role in the manufacturing of synthetic diamonds, as they are subjected to high temperatures and pressures. These anvil holders are produced using powder metallurgy technology, which involves forging, pressing, and sintering. Before use, the anvil seat must be aged to eliminate internal residual stresses, which helps prevent cracking during operation.
Tungsten carbide is the preferred material for this application due to its exceptional wear resistance, toughness, strength, and thermal stability. The anvil holders are mounted on a large pad cube with a 6-sided piston top, allowing the cavity to reach up to 10 to 20 GPa and 1500 °C when the six anvil holders are driven together by the cylinder to form a closed environment. This means that the tungsten carbide anvil is operating under supercritical conditions and is exposed to stress, tensile stress, and shear stress simultaneously.
All anvil holders undergo advanced pressing, sintering, and hot isostatic pressing (HIP) processes to ensure their superior performance and absence of defects. Overall, cemented carbide anvil holders are essential equipment for synthetic diamond manufacturing and other applications where extreme pressure and temperature resistance are required.
Carbide Grades
| Grade | Co(%) | Density(g/cm3) | Hardness(HRA) | TRS (N/mm²) |
| JN8 | 8.0 | 14.70 | 91.5 | 3500 |
| JA10 | 10.0 | 14.50 | 92.0 | 3800 |
Types, Dimensions ,Tolerances
| Type | Dimensions | ||||
| D | H | E | L | ||
| φ81 | 81.0 | 65.0 | 30.0 | 12.0 | |
| φ103 | 103.0 | 75.0 | 32.0 | 12.0 | |
| φ115 | 115.0 | 85.0 | 36.0 | 13.0 | |
| φ122 | 122.0 | 90.0 | 36.0 | 13.0 | |
| φ127 | 127.0 | 95.0 | 40.0 | 13.0 | |
| φ128 | 128.0 | 95.0 | 41.0 | 13.0 | |
| φ130 | 130.0 | 95.0 | 42.0 | 13.0 | |
| φ136 | 136.0 | 98.0 | 45.0 | 13.0 | |
| φ142 | 142.0 | 102.0 | 50.0 | 15.0 | |
| φ160 | 160.0 | 115.0 | 55.0 | 15.0 | |
| φ175 | 175.0 | 120.0 | 60.0 | 15.0 | |
| φ185 | 185.0 | 135.0 | 70.0 | 15.5 | |
| φ190 | 190.0 | 140.0 | 70.0 | 20.0 | |
| φ199 | 199.0 | 140.0 | 70.0 | 18.0 | |
| φ205 | 205.0 | 155.0 | 79.0 | 26.0 | |
| φ220 | 220.0 | 155.0 | 81.0 | 23.0 | |
| φ240 | 240.0 | 172.0 | 87.0 | 18.0 | |
Production Process
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①Powder |
②Milling |
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③Spray drying |
④Pressing |
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⑤Sinter-HIP |
⑥Processing |
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⑦Checking |
⑧Finished |
Note: Can offer customized product based on customer requirements.
