Alumina Ceramic Parts Precision Machining
Products Description
Alumina ceramic parts precision machining primarily serve as the insulating framework and sealing carrier in high-voltage DC contactors, undertaking the following key functions:
Achieving stable insulation and arc isolation under high-voltage conditions
Providing a reliable bonding interface for metal terminals, electrodes, and welded structures
Maintaining structural stability in environments with frequent switching and temperature rises
Improving the safety level and service life of the entire system
This product is not a general-purpose ceramic part, but a functional ceramic component deeply customised for the application of new energy high-voltage DC contactors.
Core Functions: Targeted Solutions to Pain Points in High-Voltage New Energy Scenarios
High-Voltage Insulation Function
The high insulation strength of 99%+ high-purity alumina Alumina Metallized Ceramics effectively isolates the moving and stationary contacts of the high-voltage contactor from the external housing, preventing short circuits and leakage accidents.
High Airtight Sealing Function
The seamless integration of the metallised layer and the Precision Metallized Ceramics body achieves IP67-level sealing protection, effectively isolating external moisture, dust, and corrosive gases, protecting internal contacts from corrosion, extending the contactor's service life, and adapting to complex environments such as vehicle-mounted and outdoor energy storage.
Balanced Thermal Conductivity Function
The excellent thermal conductivity of alumina ceramic parts precision machining can quickly dissipate the Joule heat generated during contact switching, avoiding contact welding or ceramic body cracking caused by localised overheating, ensuring stable operation of the contactor in high-frequency switching scenarios (≥10⁶ switching cycles).
Resistance to electrical erosion
The Metallized Alumina Ceramics for Electrical Components has a smooth and dense surface, excellent resistance to electric arc erosion, and can withstand the high-temperature arc (instantaneous temperature exceeding 2000℃) when the contacts are switched on and off, without carbonisation or peeling, maintaining stable long-term insulation performance.
The Ultimate Pursuit of Precision Manufacturing: The Path from Powder to Functional Components
Our manufacturing advantage lies in the digitalisation, automation, and meticulous control of every process step, ensuring that each product is as precise as a work of art.
Precision Forming: Utilising isostatic pressing technology, alumina powder is subjected to uniform pressure in all directions, resulting in a green body with uniform density. This lays a solid foundation for the dimensional stability and performance consistency after sintering.
Programmed Sintering: In a computer-controlled high-temperature tunnel kiln, the heating rate, peak temperature, holding time, and cooling curve are precisely controlled at the millisecond level, ensuring that the Metallized Ceramic Insulating Tubes Metalizating Ceramic Part grains are fully densified, free of pores and defects.
CNC Diamond Tool Machining: The sintered Metallized Ceramics for Electrical Components has extremely high hardness (Mohs hardness 9), second only to diamond. We use high-precision CNC machine tools, equipped with diamond tools, for milling, grinding, and drilling, controlling dimensional tolerances to the ±0.01mm level, ensuring perfect assembly with other components.
End-to-end quality control: From particle size analysis of raw material powder to density and flexural strength testing after sintering, to bonding strength and tensile testing of metallised layers, and finally to helium mass spectrometry leak detection of finished products, we have established more than 20 testing procedures to provide a solid guarantee for the "zero-defect" delivery of products.
System-level advantages
Leap in safety
Alumina ceramics are non-flammable, and their high insulation and reliable sealing fundamentally eliminate safety accidents caused by high-voltage arcing and breakdown.
01
Increased power density
The excellent insulation properties of Metallized Ceramic Housing for Power Semiconductors allow for higher withstand voltage ratings in a smaller space, facilitating contactor miniaturisation.
02
Extended lifespan and reliability
The high hardness, arc erosion resistance, and non-ageing properties of High-Strength Metallized Ceramic Components materials, combined with reliable metallised sealing, ensure that the contactor maintains its original performance after hundreds of thousands of operations.
03
Adaptability to harsh environments
High temperature resistance, corrosion resistance, and radiation resistance make it fully adaptable to harsh environments such as engine compartments and outdoor charging stations.
04
Contact us
Hot Tags: alumina ceramic parts precision machining, China alumina ceramic parts precision machining manufacturers, suppliers, factory, New Energy HVDC Parts, New Energy Relay Yoke, Metallization Ceramic, EV Relay Bracket, New Energy Contactor Contact, Metallized Ceramic Housing For Power Semiconductors
You Might Also Like
Send Inquiry