Is extractive metallurgy different from process metallurgy?
铁是通过高炉冶炼从矿石中提取的。
It can be classified as process metallurgy and physical metallurgy.
它可以分为过程冶金学和物理冶金学。
Powder Metallurgy is a process for making parts from metal powder.
粉末冶金是用金属粉末制作部件的过程。
Powder metallurgy (Fig. 5.1) USES sintering process for making various parts out of metal powder. The metal powder is compacted by placing in a closed metal cavity (the die) under pressure.
粉末冶金(图5.1)采用烧结工艺将金属粉末制成各种各样的零件。金属粉末放在封闭的金属腔(模具)中在压力下被压实。
Welding is a complicated process in which arc physics, heat transfer, metallurgy and mechanics are involved.
焊接是一个涉及电弧物理、传热、冶金和力学的复杂过程。
Widely used in chemical, petroleum, metallurgy, power stations, such as industrial production process.
广泛应用于化工、石油、冶金、电站等工业生产过程中。
The reheating furnace process computer system goals are mainly dynamic production process control, process operation records tracking, and production process optimization with metallurgy model.
再加热炉过程控制计算机系统的主要目的是实现生产动态过程控制，跟踪操作记录，同时通过冶金模型进行生产过程优化。
A new manufacture process and application instance of metallurgy integrated complex steel pipe is introduced.
介绍了一种新的冶金结合复合钢管制造工艺及工业应用情况。
The process of wastewater treatment for nickel metallurgy was presented.
报道了一种处理镍冶金废水的工艺方法。
The ingot alloy quality and casting process influence directly the casting metallurgy quality.
精铸合金锭的质量及铸件铸造工艺直接影响铸件冶金质量。
Bruce said the main high-speed steel powder metallurgy process: Add a pre-alloyed powder metallurgical high speed steel components, induction-melting furnace, and then made the gas spray granulation.
布鲁斯表示主要高速钢粉末冶金过程是：加入了预合金化冶炼高速钢成分粉末，经过感应炉熔化，然后气体喷雾造粒制作而成。
There is the better application prospect for the application of artificial neural network in end-point prediction for the whole ferrous metallurgy process.
人工神经网络技术在冶金过程终点预报应用方面具有广阔的应用前景。
As a new method of nickel extractive metallurgy, the process of chlorine leaching purification electrolysis for nickel sulphide concentrate usually USES solvent extraction as its purification.
硫化镍精矿氯气浸出—净化—电积工艺作为镍提取冶金的新方向，其净化过程大多采用溶剂萃取方法。
Open cell aluminum foams were prepared by traditional powder metallurgy process, with spherical carbamide particles as the space-holder.
以球形尿素颗粒为造孔剂，采用传统的粉末冶金工艺制备开孔泡沫铝并研究了其性能。
The process, characteristic and applications of combustion synthesis are provided along with a discussion about coordination and difference between combustion synthesis and powder metallurgy.
在介绍燃烧合成的工艺过程、特点和应用的同时，比较了燃烧合成与粉末冶金的异同。
The article resumed applications of controllable atmosphere in heat treatment and powder metallurgy industry and laid stress on the newly developed nitrogen gas generating process by membrane.
概述了可控气氛在热处理、粉末冶金工业的应用，并重点介绍了近年来新开发的膜制氮工艺。
For specific gas mixing process in metallurgy system, a simple intelligent PID controller has been designed based on conventional PID algorithm and combination with human imitative intelligence.
针对冶金系统的煤气混合工艺过程，根据常规pid算法，结合仿人智能控制原理，作者设计了一种简单的智能PID控制器。
The second is the manufacture process of metallurgy and material manufacture under the synthetic effect of several outer physical fields.
其二是在若干外加物理场综合作用下的冶金和材料制备过程。
A support material with low expansivity and high conductivity, called DG alloy, was prepared by powder metallurgy. The effects of sintering process on its properties and microstructure were studied.
采用粉末冶金技术制备了一种低膨胀高导热支撑材料(简称DG合金)，研究了烧结工艺对合金组织和性能的影响。
Accordingly it is very important to control and forecast the dimension change and the geometric shape variation of the final product in the powder metallurgy process, especially the design of mould.
因此，在粉末冶金工艺中，对尺寸变化尤其是对模具尺寸的设计进行控制与预测是非常重要的。
Rotary kiln calcine capital equipment cement of grog there are dry process production and wet process production have already been used such trades as metallurgy chemical industry etc. extensively.
回转窑是煅烧水泥熟料的主要设备，可分为干法生产和湿法生产，亦已被广泛应用冶金、化工等行业。
As the main process equipment in metallurgy enterprise, the strategy of automatic control of reheating furnace is one of the most important research topics in the field of related process control.
加热炉是冶金企业主要的过程设备，其自动控制策略是过程控制领域内的一个重要的研究方向。
Presently this technique has already been applied to several fields such as cotton process equipment, NC and steel metallurgy.
目前，该技术已成功用于棉花加工设备、数控机床、钢铁冶金等多个行业。
Hematite high intensity magnetic separating process of metallurgy industry has the complexity of nonlinearity, uncertainty and it is difficult to describe with accurate mathematical models.
冶金工业赤铁矿强磁选过程具有强非线性、不确定性且难以用数学模型描述。
The process of preparation foam aluminum by powder metallurgy method was studied.
对采用粉末冶金法制备泡沫铝材料进行研究。
The main body of a book is discussed mainly from the theory being in progress on metallurgy process thermodynamics.
本文主要从冶金过程的热力学上进行理论性探讨。
The invention relates to a method for making a titanium-based automotive engine valves using powder metallurgy process, and the automotive engine valve stem, engine valve and method of producing both.
本发明涉及利用粉末冶金工艺制造钛基汽车发动机气门的方法。公开了汽车发动机气门杆、发动机气门以及二者的制造方法。
It is widely used in industries as paper making, printing, plastic process, metallurgy, food, packing and decoration etc.
纸管用途广泛，普遍使用于造纸、印刷、塑料加工、冶金、食品、包装、装潢等行业。
It is widely used in industries as paper making, printing, plastic process, metallurgy, food, packing and decoration etc.
纸管用途广泛，普遍使用于造纸、印刷、塑料加工、冶金、食品、包装、装潢等行业。
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