本文通过焊接试验、显微分析和磨损试验论述了以铬、镍、铁基合金代替钴、铬、钨合金作石油钻头牙爪堆焊耐磨合金的问题。
In this article we discussed the possibility of replacement of cobalt alloy by Cr-Ni iron Base alloy in drill bit bearing on the basis of welding test, wearing test and microscopic examination.
地下蕴藏铅、锌、冰晶石、铬、煤、钨、钼、铁、镍、铀和石油等资源，其中冰晶石已基本采完。
Underground deposits of lead, zinc, cryolite, chromium, coal, tungsten, molybdenum, iron, nickel, uranium and oil resources, which has basically taken cryolite end.
用途广泛，使用于铝、铜、铁、锌、不锈钢、普通钢、镍、钨、合金以及异类金属之间的焊接。
Wide-ranged applications, especially in the welding of copper, iron aluminum, steel, stainless steel and alloy.
广泛适用于铝、铜、钨、镍、铁、不锈钢等多种金属片、丝、棒的焊接以及电池，电真空器件，电子元件，小五金和热工测量仪表内部结构的装配和焊接。
Widely used in the welding of aluminum, copper, iron, stainless steel, and some vacuum wares, electronic components and the inner structures of the thermal measuring instruments.
广泛适用于铝、铜、钨、镍、铁、不锈钢等多种金属片、丝、棒的焊接以及电池，电真空器件，电子元件，小五金和热工测量仪表内部结构的装配和焊接。
Widely used in the welding of aluminum, copper, iron, stainless steel, and some vacuum wares, electronic components and the inner structures of the thermal measuring instruments.
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