Kobber ydre endehætte til høj spænding lav strøm EV sikring

Kobberens ydre endehætte til højspænding Lav strøm EV -sikring er en komponent, der bruges i elektriske sikringer designet til højspænding og lavstrøm applikationer i elektriske køretøjer . Den ydre endehætte er lavet af kobber og tjener som en terminal for sikringen, hvilket gør det muligt at tilslutte det elektriske kredsløb . dets design er optimeret for høj reliabilitet og ydeevne under de krævende betingelser for det elektriske kredsløb. EVS .

The T2Y2 Copper End Cap for Fuse exhibits good electrical and thermal conductivity, corrosion resistance, and excellent processing performance. It can be easily welded and brazed. The copper element content in T2Y2 is 99.95%, and the phosphorus content is only 0.02%. Meanwhile, T2 Copper End Cap is pure copper, which is named after its purple color. It contains minimal impurities that could otherwise reduce electrical and thermal conductivity. Though a small amount of oxygen does not affect its properties much, it is prone to "hydrogen disease." Copper End Cap is unsuitable for processing in a reducing atmosphere at high temperatures (>370 grad), såsom udglødning og svejsning, og efterfølgende brug .

The welding performance of copper stamping parts, including Fuse End Cap and Contact, is influenced by several factors. Firstly, high thermal conductivity requires a high-power heat source and preheating of the weldment before welding. Secondly, molten copper liquid has good fluidity, making flat welding position ideal, while spatial position welding requires a backing plate. Additionally, copper has a large coefficient of linear expansion, leading to significant thermal expansion and cold contraction during the welding process, resulting in significant deformation. Copper's susceptibility to oxidation leads to the formation of cuprous oxide, which reduces plasticity and causes cracks during crystallization. Lastly, the solubility of hydrogen in liquid copper creates hydrogen holes during Svejsning, mens kobberoxid ved høje temperaturer, der reagerer med brint og kulilte, resulterer i poredannelse, hvis ikke tilstrækkeligt undslippet før størkning .

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