Metallized Ceramics For Electrical
Products Description
The Metallized Ceramics For Electricals inside the HVDC contactor usually play the dual roles of insulation, isolation, and structural connection. Compared with traditional insulation materials, the application of ceramic materials in high-voltage electrical equipment has higher stability and longer service life.
Metallized ceramics use a special process to deposit a metal layer on the ceramic surface so that it can be welded or brazed with metal parts to form a reliable ceramic-metal sealing structure. This technology effectively solves the common problem of a reliable connection between insulating materials and metal structures in high-voltage electrical equipment.
This type of structural part not only plays an insulating role in electrical equipment, but also plays an important role in mechanical strength, heat resistance, and long-term stability, allowing the contactor to maintain stable performance in frequent movements or complex environments.
Manufacturing advantages: precise control from powder to components
| Near net size molding technology | In view of the strict dimensional tolerance requirements of HVDC contactors, we use isostatic pressing or injection molding processes. This makes the Metallization of alumina green body have extremely high density uniformity and controllable sintering shrinkage, which greatly reduces the amount of grinding processing in the later stage, thereby reducing the scrap rate caused by processing micro-cracks. |
| High-precision grinding and parallelism control | The flatness of the sealing surface of Alumina Metallized Ceramics for Bonding parts directly determines the air tightness of the brazing seam. We have introduced a high-precision CNC grinder to mirror-grind the sealing surface, and the flatness error is controlled at the micron level. This ultimate flatness allows the solder to spread evenly during soldering, eliminating the occurrence of false soldering and micro-leakage channels. |
| Atmosphere protection sintering production line | We have fully automatic tunnel kilns and high-temperature hydrogen molybdenum wire furnaces. By accurately controlling the temperature rise curve and the atmosphere dew point, it is ensured that the metallization layer and the ceramic matrix undergo a sufficient eutectic reaction, and at the same time, abnormal growth of metallization of alumina ceramics grains is avoided. Each batch of products undergoes strict metallographic inspection to ensure uniform thickness of the metallization layer, no pinholes, and no peeling. |
Application scenarios and selection guide
New energy vehicle high voltage power distribution
The main positive, main negative, and precharge contactors of 800V high-voltage platform electric vehicles widely use metallized ceramic sealing solutions. The ceramic insulator ensures the isolation between the high-voltage electrode and the casing, and the metalized sealing ensures a stable internal environment of the contactor.
01
Energy storage system DC cut-off
The DC side of large-scale energy storage power stations requires high-reliability cut-off devices. Metallized ceramic components provide stable insulation at voltage levels of 1000V to 1500V while withstanding temperature and humidity changes in the outdoor environment.
02
Photovoltaic inverter protection
Photovoltaic DC side contactors need to withstand high temperature and high humidity environments. The corrosion resistance of Alumina Metallized Ceramics for Electronic Applications has obvious advantages in such applications, reducing downtime caused by insulation degradation.
03
Rail transit DC system
In DC traction systems of subways and high-speed trains, the vibration conditions of contactors are severe, and the high mechanical strength and fatigue resistance of metallization of alumina ceramics ensure long-term reliable operation.
04
Charging pile high voltage control
The high-voltage contactor inside the DC charging pile needs to be opened and closed frequently. The metallized ceramic seal ensures that the contact environment is free from external pollution and extends the electrical life.
05
Why choose us as your engineering partner?
We know that for HVDC contactor R&D engineers, ceramic parts should not just be a standard product, but an engineering solution that requires deep customization.
We not only provide ready-made product lines, but also provide early engineering intervention support (DFM). Whether it is ceramic material selection guidance or metallization pattern optimization design, our senior ceramic engineering team can intervene at the early stage of your design to help you shorten the development cycle and avoid potential welding failure risks.
contact us
For new energy equipment manufacturers, choosing the right supplier of key structural parts is not only related to product quality but also to the stability of the supply chain.
We not only provide high-quality metallized ceramic products, but also provide engineering-level customized solutions and stable manufacturing capability support based on the contactor structural requirements. Welcome to contact the technical team for detailed solutions and engineering support.
Hot Tags: metallized ceramics for electrical, China metallized ceramics for electrical manufacturers, suppliers, factory, Alumina Metallized Ceramics, Metallized Ceramics, Metallized Ceramic Housing For Power Semiconductors, New Energy Contactor Contact, EV Relay Bracket, Yoke Metal Parts Of Relays
You Might Also Like
Send Inquiry