High thermal conductivity silicon nitride ceramic substrate
The product is 177.8mm (7 inches) long, 127mm (5 inches) wide, and 0.238mm thick. It has high strength, high thermal conductivity, electrical insulation, high temperature resistance, low expansion, and good chemical stability. The heat rate is up to 60-120 W/(m·℃), it is the third generation ceramic heat sink after alumina and aluminum nitride. It is used for electric vehicles, high-speed rail, and high-power transmission equipment. This material is China's "key" material in the IGBT field.
In 2013, ZCDH began to invest in research and development efforts in the research and development of silicon nitride high thermal conductivity substrates, and took the lead in China to overcome the technical barriers of 60, 90, and 120W/(m·℃), breaking the global monopoly of Japanese companies. Jointly use domestic silicon nitride substrates with CRRC and China Electric to manufacture IGBTs for electric vehicles and high-speed rail.
Hot isostatic pressing silicon nitride ceramic bearing ball
The diameter ranges from 0.8 mm to 101.4 mm, with high strength, light density, low expansion, self-lubricating, insulating, and non-magnetic characteristics, exceeding the performance indicators of ISO and ASTM standard I. The same fatigue failure mode as steel balls can ensure the reliable use of high-speed, high-precision, and long-life bearings, which can exceed 600,000 revolutions per minute. Used for precision machine tool spindles, high-speed bearings for electric spindles, aerospace engines, transmission system bearings, insulated bearings for wind turbines, bearings for large medical equipment, robots and dental drills, automotive engine bearings and fuel injector valve balls.
In 2015, ZCDH Ceramic Materials Technology Group broke through the mass production technology of hot isostatic pressing silicon nitride ceramic balls, becoming the third after CoorsTek of the United States and Toshiba of Japan. It is also the first and only company in China to form mass production of hot isostatic Silicon nitride ceramic materials enterprises, whose products are exported to SKF, Timken,GMN and have passed the quality certification of Schaeffler and Seiko; they are used in Chinese aerospace engineering and other fields To the Long March 5 rocket engine, space station rendezvous and docking, Chang'e project, transmission system, etc.
About ZCDH Advanced Ceramic Materials Technology Group
ZCDH Advanced Ceramic Materials Technology Group, its predecessor is a national industrial ceramics research institute which leads the technology and industry development of advanced ceramics in China lasted more than 40 years.
Depending on its strong technical supporting, the company started the production of alumina products since year 1993. With the advanced production facility, technical innovation, and more than 20 years' production experience, ZCDH supplies all the customers a complete range of alumina ceramic products and zirconia, silicon nitride ceramic beads. The alumina content could be 75%, 92%, 99%.
The main production processing is super-fine powder grinding, cold-isostatic-press(CIP), pan-rolling, and high temperature firing,Now, with the annual production capacity of 45,000MT.
Microcrystalline wear-resistant alumina FOR WET GRINDING
Microcrystalline wear-resistant alumina BY CIP FOR DRY GRINDING
ALUMINA LINING BRICKS
ALUMINA MICROBEADS
MICROBEADS FOR NON-METAL MINING INDUSTRY
MICROBEADS FOR NON-FERROUS METAL MINING INDUSTR
HIGH MIDDLE ALUMINA BALLS
ALUMINA CYLINDER
MIDDLE ALUMINA BALLS
ZIRCONIA BEADS
WEAR-RESISANCE ALUMINA TILE/LINER
ALUMINA BALLS WITH PERFECT SURFACE
ALUMINA CYLINDER TUBE