1 | Metallurgy basics | 冶金基础 | p.3 | |
2 | 少数民族的风俗和特色 Metal Working Process | 内膜厚了怎么办金属加工工艺 | p.9 荨麻疹图片和症状 | |
3 | Main Tools OEM | 主要设备制造商 | p.18 | |
4 | Chemistry | 相关化学 | nbar p.20 | |
5 | Equipment | 设备 | p.26 | |
6 | Index | 焊接位置索引 | p.31 | |
1. Metallurgy basics | 1.冶金基础 |
1.1 Metals & Alloys | 1.1金属及其合金 |
Aluminium A silvery and ductile member of the poor metal group of elements, aluminium is found primarily as the ore bauxite and is remarkable for its resistance to oxidation (due to the phenomenon of passivation), its strength, and its light weight. More details : /encyclopedia/Aluminium •Many of the alloys are easy to machine •Low cutting forces allow high cutting speeds •High thermal conductivity rapidly dissipates heat •Can be prone to formation of BUE on the tool. •Some of the Al-alloys are very difficult to machine, e.g. with very low or very high Si content. | 铝 铝是一种银色而柔软的稀有金属元素，首先发现于矾土矿石，并以抗氧化性（由于钝化现象）、强度和轻质量著称。 纲纪更多详情： /encyclopedia/Aluminium 很多合金易于加工 低切削力可以采用高切削速度 导热系数高，可以快速去除热量 刀具上易产生切削瘤 有些铝合金难于加工，如含有非常高或非常低的硅含量（Si） | |
Brass Brass is an alloy of copper and zinc. Some types of brass are called bronzes, despite their high zinc content. Some types of brass have other metals added to modify their properties. More details : /encyclopedia/Brass •Most brass are easy to machine and free cutting, especially tho to which lead has been added. •Brass are nsitive against sulphur红茶解药吗 | 黄铜 黄铜是一种铜、锌合金。有些类型的黄铜叫做青铜，尽管锌含量很高。有些类型的黄铜添加了其他金属以改变它们的特性。 更多详情：社会实践家长评语 /encyclopedia/Brass 大多数黄铜易于加工和切削，特别是含有铅的黄铜 黄铜对硫（S）敏感 | |
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