Detailed Project Report on bright bars

The Bright bars are basically the raw material for a  number of industries engaged in the manufacture of items such as  bolts, nuts,  shafts Iron bar etc.  By virtue of the finished  surface, which  is smooth and with in the designed tolerances bright  bars  are normally drawn round, square pentagonal or hexagonal. In  is  proposed  to define briefly a rolling  mill  we  are concerned mainly with hot rolling mill, that is mill in which the steel  is heated to a suitable temperature before  rolling  takes place. 

A  hot  mill,  mill  stand consists of  two  three  or  more cylindrical  metal rolls usually mounted horizontally in  bearing at their ends and vertically above each other.  If there are  two rolls  in the mill is called 2 high, and three rolls, 3 high  and soon.  These rolls may be driven through couplings at their  ends by  spindles  which,  are  in  their  turn,  coupled  to  pinious (orgeors)  which  transmit  the power from the  prime  move  (now usually  an electric motor though some steam or gas  engines  are still in use.)

     The  use  of  the terms wobbler and "coobler  box"  for  the coupling  at  each  end of the spindle suggests  a  rather  loose  fillings coupling per mitting a limited vertical movement of  the rolls whilst transmitting the driving power.

      These  wobbler couplings have been superseded in many  mills by  more  advanced  designs  or  Universal  and  semi   universal couplings wobbler refers to the end of the roll fitting in to the coupling box the "roll body" or "barrel" lies between the bearing neck,  the latter being the parts which turn in the bearings  the bearings are housed in `chocks' which are positioned in "windows" in the mill  housing and these chocks may be raised or lowered to adjust the gap between the rolls.

MARKET SURVEY CUM DETAILED TECHNO
ECONOMIC FEASIBILITY REPORT covers
 

• Introduction
• Mill Size
• Mill Stand
• Mill Train
• Roll Arrangement in Single Stands
• USES & APPLICATION
• B I.S. SPECIFICATIONS
• MARKET SURVEY
• Government Initiatives
• Steel Industry in India
• Summary of Past Approaches to Estimate Steel Consumption
• OBSERVATIONS
• MANUFACTURING PROCESS OF BRIGHT STEEL BAR
• COLD DRAWING
• Stress Relieve Anneal
• Bright Bar Defects
• Removal of Surface Defects by Inspection
• Steel Grade Names
• Bright Bar Product Range – Sections, Tolerances & Grades
• Dimensional Tolerances
• Length Tolerances
• Straightness tolerances for critical applications
• Surface Quality
• Cold Drawn and Cold Rolled Bars
• Turned and Polished or Precision Ground Bars
• Surface Roughness
• Steel Grades – Chemical Composition
• Bright Bar Straightness Tolerance
• Bright Bar Dimensional Tolerances B.S.970 Part 3 1991
• Stainless Steel Bolting Material (As Per Astm A19 3 & Astm A320 Specification)
• Packing
• PROCESS FLOW DIAGRAM
• PLANT LAYOUT
• SUPPLIERS OF BLACK AND BRIGHT STEEL BARS
• ACID AND CHEMICALS
• DRAW  BENCH
• STRAIGHTENING MACHINE
• BAR POINTING MACHINE
• POWER HACKSAW
• Drilling Machine
• WEIGHING MACHINE
• Diesel Generator
• GRINDING MACHINE
• ARC WELDING MACHINE
• LATHE MACHINE
• ETP PLANTS
• ELECTRIC HOISTS
• PICKLING TANK
• ANNEALING FURNACE
• POWER TRANSFORMERS
• AIR COMPRESSORS

APPENDIX

 1.  COST OF PLANT ECONOMICS
 2.  LAND & BUILDING
 3.  PLANT AND MACHINERY
 4.  FIXED CAPITAL INVESTMENT
 5.  RAW MATERIAL
 6.  SALARY AND WAGES
 7.  UTILITIES AND OVERHEADS
 8.  TOTAL WORKING CAPITAL
 9.  COST OF PRODUCTION
10.  PROFITABILITY ANALYSIS
11.  BREAK EVEN POINT
12.  RESOURCES OF FINANCE
13.  INTEREST CHART
14.  DEPRECIATION CHART
15.  CASH FLOW STATEMENT
16.  PROJECTED BALANCE SHEET

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