22-10-2012, 12:23 PM
STUDY OF 3780T HORIZONTAL EXTRUSION PRESS
HORIZONTAL EXTRUSION.docx (Size: 53.56 KB / Downloads: 47)
ABSTRACT
Nuclear fuel complex, Hyderabad is responsible for production of fuel bundles and required objective used in Nuclear reactors in India. The Nuclear Fuel Complex houses several sections devoted to with help of various operations and process preformed. Latest extrusion technology is utilized in NFC for the purpose of providing high quality service and high production rate. Through highly skilled manpower and modern technology, the NFC has provided commendable service to the Department of Atomic Energy and will continue to do so in the future. Because of its high efficiency, plant NFC, Hyderabad has become one of the most critical pillars of the edifice of Department of Atomic Energy.
My project at the NFC comprises of study of Extrusion process carried out on the 3780T Horizontal Extrusion Press.
Extrusion is defined as the process of shaping material, by forcing it to flow through a shaped opening in a die. It is used to create objects of a fixed cross-sectional profile. A material is pushed or drawn through a die of the desired cross-section. The two main advantages of this process over other manufacturing processes are its ability to create very complex cross-sections and work materials that are brittle, because the material only encounters compressive and shear stresses. It also forms finished parts with an excellent surface finish. Commonly extruded materials include metals, polymers, ceramics, concrete and foodstuffs. Main advantage is that near net shaped components to close tolerances in one operation can be obtained.
INTRODUCTION
Nuclear Fuel Complex (NFC), Hyderabad, is one of the prestigious organizations of Government of India. Nuclear Fuel Complex, a unit of Department of Atomic Energy is the product of Research Development intensive work carried out at BARC (Bhabha Atomic Research Center, Bombay) during sixties in the field of fabrication of nuclear fuel and other reactor core components that require to support Indian nuclear power program as envisioned by the late Dr. Homi. J. Bhabha, the chairman of Atomic Energy Commission of India from 1948 to 1966. NFC, Hyderabad, is spread over an area of 150 acres. It is the unique center in the world where reactor core components are manufactured under one roof starting from ore concentrated to ready- to- use products.
It has been established in the year 1971, is a major industrial unit of DAE. The Hyderabad site was selected, recognizing the presence of many Science and Technology institutions, the industrial infrastructure available and also the advantages of central location with excellent communication links with all the parts of the country. It provides a unique facility where natural and enriched uranium fuel, zirconium alloy cladding and reactor core components are manufactured under one roof starting from raw materials.