This paper emphatically introduces the principle,process and utilization of technics of SHS fabrictaing powder,SHS pressing,SHS melting and casting, SHS coating and SHS welding.

Characters of solar energy,conversion and utilizing ways,and its application prospect in metallurgical industry are presented.

The paper presents the process for the extraction of Nd metals out of NdFeB industrial scraps and also the influence of the related technical conditions on the product quality and techno economic index.The resultant Nd metals feature special composition and can be reused for NdFeB smelfing with remarkable economic benefit.Nd oxide with special composition out of the NdFeB scraps is used for Nd metals production in the 3000 A electrolyzer at a capacity of 60 kg / day cell with over 75% of current efficeney and over 88% total metal recovery. The process described is proven to be advanced, well established and reliable.

Description is made of the research,development, production status and development tendency of MIM in Asia.

This paper introduces technical properties of Re and its occurrence. It in detail describes applications and development of Re in the fields of petrochemistry, national defence and aerospace electronic, metallurgy, super high temperature emitter, Ni based super cemented alloy,heat power generator, medicine and television, etc. Finally,development and outlook aftter 2000 year of Re industry are analyzed and predicted.

The paper describes the widely used WWW technology of Internet,supplies some URL of several material science and technology web site. It suggests that Internet will become a key implement in study of material science and technology.

According to the proton chemical displacement in the NMR spectrum,a method of calculating the Pauling group electronegativity was put forword. The relationship formula between the electronegativity of group R and the proton chemical displacement in CH 3-R has been given: x=10.65-8.555 2-(1.25δ) 2

A new sulfidizing agent instead of Na 2S and NaHS. has been used to prepare thiomolybdate from sodium tungstate solution. The process parameters in sulfidizing process has been investigated. When the concentration of sodium hydroxide in solution is 8-16 g/L, the concentration of free S 2- is 4 g/L, and the pH is less than 9, the extraction rate of molybdenum is more than 95%.

Influences of various parameters, such as average particle size, green density, sintering temperature, on the specific electric capacity of tantalum powder with high specific capacity were studied. The regression equation between the capacity and parameters was obtained. The temperature dependent characteristics of tantalum powder, furthermore, were investigated,by a comparison of some domestic powders with PL 22. The results show that the loss of the specific capacity during sintering increases with decreasing Ta powder particle size. Each paritcle size has an optimum sintering temperature for lowest loss of the capacity. The poor temperature characteristics of domestic Ta powder was due to non homogeneous distribution of the powder particles and their complicated shape.

Based on the Comparison between the continuous annealing of Ta wire with oxide film and the original technology, and on the analysis of the relation between the continuous annealing , oxygenated parameters ,and the wire flatness, it is proven that the continuous annealing of wire with oxide film has an advantage over the original stacked annealing, as is an important technical breakthrough in the Ta wire production.