The effect of La2O3 on the particle size and morphology of the reduced Mo powder, and a technique for producing hightemperature Mo blanks are introduced.

A new non-contact on-line outline length measuringinstrument for hot steel slabs is proposed in this paper.

Three-dimensional measurement of the size of a moving hot steel slab using an area-array CCD camera is proposed.

In the paper is adopted the mode of compacting of different as well as workmanship drawing high-temperature molybdenum wire.

High temperature molybdenum(HTMo),which was made by powder-metallurgy process and widely used in vacuum electronic devices because of its advantages of high melting temperature,low vapour pressure,sufficient electrical resistance,low thermal expansion combined with good thermal conductivity,higher thermal stability.

The manufacture of Mo ingot is the key for produce the high quality Mo wires and the preparation ofthe Mo powder is the foundation of Mo ingots production.

Based on the comparison of two common methods of defect detection on the surface of continuous casting billet at high temperatures, with the discussion and study on the flaw detection theory, detection equipment and its cost analysis, an efficient detection method is raised, which is suitable for the domestic iron and steel companies.