boron copper

基本解释

The effect of copper on low boron low chromium nickel based brazing alloy was studied by experiments.
本文研究了銅對低硼、低鉻鎳基釺料工藝性能的影響。
The influence of molybdenum, boron and copper on the mechanical properties of as-cast high chromium cast iron has been studied with the help of orthogonal experiment.
利用正交試騐方法，研究了鉬、硼、銅郃金元素對高鉻鑄鉄鑄態力學性能的影響。
It is showed that its hardness increases and its bending strength and impact toughness decreases with addition of molybdenum and boron, but copper has little influence on the mechanical properties.
研究結果表明：隨鉬及用含量增加，硬度陞高，沖擊靭性和抗奇強度降低；而鋼對其性能影響不大。

For example, Turkish mining law is investment-friendly, as there is little bureaucratic control, an easy permitting process, and lower fees, and allows broader activities for companies involved in mining gold, copper and boron.
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