Ultra hard silver plating for EV car charging terminals and connectors (plating technology)
A unique mass production technology born at the same time as the beginning of EV cars! Pursuing hardness and achieving cost reduction! With well-equipped mass production facilities, both wear resistance and conductivity are realized!
This is a hard silver plating that achieves both low cost through wear resistance and reduced film thickness. Even with a thin film thickness, it ensures sufficient hardness. Even if the film thickness is increased, the surface of the plated film maintains smoothness suitable for terminals and connectors (proven: up to 100μ). The thickness and hardness of the silver plating film are managed with measuring instruments, characterized by small variations in measurement values. If silver plating is needed for terminals and connectors... "We need to make the film thick to ensure hardness, which increases the plating cost." "If we make the film thick, the plating film won't be smooth." These challenges can be overcome. We can solve the concern of wanting to reduce the thickness of hard silver plating while still needing hardness. 【Features】 ■ Well-equipped mass production facilities that maintain high quality ■ The surface of the plating film maintains the necessary smoothness for terminals even with increased thickness ■ No cracking or peeling of the plating film ■ Small variations in thickness and hardness of the plating film even in mass production ■ Also used for movable/fixed terminals and seal rings/gaskets (up to φ400) ■ Partial plating is possible, plating only where needed.
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basic information
【Materials Suitable for Plating】 ■ Various types of copper (Cu), iron (Fe), stainless steel (SUS), etc. 【Plating Methods and Hardness (HV) Guidelines】 ■ Rack plating (180–210 HV) ■ Barrel plating (150–180 HV) *Note: This varies depending on the "hardness and condition of the base material" and the "plating thickness possible for silver." 【Comparison of Hardness (HV) in Rack Plating (Guideline)】 Conventional hard silver plating (thickness: 50 microns) ~160 HV ↓ 'Ultra' hard silver plating (thickness: 30 microns) 180–210 HV *For more details, please refer to the PDF document or feel free to contact us.
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Applications/Examples of results
Charging terminals and connectors for EV and PHV vehicles On-board terminals and connection components High voltage terminals *For more details, please refer to the PDF document or feel free to contact us.*
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Company information
The slogan is "Challenge the Impossible." We are a technology development-oriented company that broadly develops unique surface treatment technologies to meet the special needs required for essential low-voltage components (related to electricity, electronics, and semiconductors), high-voltage components (such as high-voltage connectors), and insulating components. Additionally, we have established a support system that incorporates functional surface treatments, which we have cultivated since our founding, as our core technology, along with processes such as pressing, heat treatment, painting, and assembly. We will continue to deliver consistent Yuden-sha brand technologies and products to the world. *We support online business meetings.
