yield cost calculation in hot roll mill

yield cost calculation in hot roll mill

Rolling Technology for Thin Steel Strip in Hot Strip Mill ...

The HRC conversion cost is for a notional medium size steelmaker who purchases slab on the open market and rolls this into coil on a traditional tandem hot rolling mill of perhaps 1 or 2 mt per year capacity. Average labour productivity is assumed at a blue collar wage cost of $20k/year.

Basics of Rolling of Steel – IspatGuru

The formula to calculate the cost of the machining is the following: For example, with a cycle time of 12 seconds, efficiency 80,5% and a Machine hourly cost of 77,3 Euro we obtain: MACHINING COST = 77,3 * 12 / 0,805 / 3600 = 0,32 Euro. So the total direct cost …

Understanding Rolling Process in Long Product Rolling Mill ...

The Cost Rollup process must calculate the cost at each level of the product structure, as well as the final cost. For example, if an item has a BOM or component list like the one in this diagram, the cost rollup must calculate the cost of item 2002 before it can calculate the cost of item 1001.

First Pass Yield vs. Roll ThroughPut Yield: Why RTY is ...

A two-stand reversing cold mill can deliver capacities between 300,000 t/a of thin-gauge products or 1,000,000 t/a and more of thicker-gauge products. Main benefits of Primetals Technologies' reversing cold mills. High production capacity and yield; Flexible, low-cost rolling of a wide range of products, especially for small order lots

How to Calculate Product Yield | Bizfluent

Secondary scale on hot strip and the impact on wear is another issue. Stresses from Hertzian pressure in 4-high cold mill back up rolls were measured years ago, the results were never published, but of high interest - also, maybe later. K. H. Schröder July 2003 K. H. Schröder: A BASIC UNDERSTANDING OF THE MECHANICS OF ROLLING MILL ROLLS

Metal Weight Calculator | Industrial Metal Supply

Sep 12, 2007· Rolled Throughput Yield (RTY) Process 1 had a daily yield of 84% (84/100) while process 2 had a daily yield of 75% (82/110) and finally process 3 had a daily yield of 91% (126/138). So, to calculate RTY we simply multiply these yields together giving us a composite yield for the day. Doing this gives us: 84% x 75% x 91% = 57% ...

Rolling (metalworking) - Wikipedia

of a long workpiece by compressive forces applied through a set of rolls, as shown in figure (5-1). Fig. (5-1) Most rolling is carried out by hot working, called hot rolling, owing to the large amount of deformation required. Hot-rolled metal is generally free of residual stresses, and its properties are isotropic.

Hot Rolled & Cold Drawn Steel Bar Supplier | Eaton Steel ...

Aug 26, 2020· In Lean training courses, the concept of yield is discussed as a measure of the quality of a process.Yield is an important term for 6 Sigma.There are two types of yield: first pass yield or FPY and rolled throughput yield or RTY.Free Lean Six Sigma training debates whether FPY or RTY is the best measure of yield. This article compares rolled throughput yield vs first pass yield.

Paper Calculators | Graphic Communications

ABB DRIVES AND CONTROL SYSTEM FOR HOT FLAT ROLLING MILLS IMPROVES YIELD AND QUALITY BY LARS MJÖRNING * SYNOPSIS: ABB have through the years delivered a large number of drive and control systems to rolling mills in the steel industry, helping mill crews to produce rolled material with a higher effiency and improved yield and quality.

Rolling processes - Al-Mustansiriya University

Free online asphalt calculator to help you estimate how much asphalt you need for your construction project - road, private driveway, car park, etc. Output in weight and volume: tons, tonnes, cubic yards, cubic meters, etc. Basic information about asphalt (tarmac) and tips on calculating how much you need. Online tarmac calculator.

Asphalt Paving Calculator | Tonnage Calculator | Roadtec

Steel round bars are available in hot rolled or cold rolled. Hot rolled round bar is typically used for applications like construction where finish and precise dimensions aren't a priority. Conversely, cold rolled round bar is used for applications where a superior surface …

Calculator for Rolled Length of Roll of Material

The Calculation of Roll Force and Torque in Hot Rolling Mills R. B. Sims, B.Sc. Proceedings of the Institution of Mechanical Engineers 1954 168 : 1,

Paper calculation - DS Smith Paper

Micronaire Value (Cotton): The unit is micrograms per inch. The average weight of one inch length of fibre, expressed in micrograms(0.000001 gram). Denier (Man-Made Fibres): Weight in grams per 9000 meters of fibre. Micron (Wool): Fineness is expressed as …

Difference Between Hot and Cold Rolled Steel | Metal ...

Nov 01, 1992· COST OF STEEL PLATES Raahe Steel Works produces about 2 million tons of hot rolled flat steel products (coils, plates, cut lengths etc.) Hot rolled plates accolDlt for one fourth of the production. 2 1 Steel production 2 1 1 Outline of production The lay-out of the steel works is shown in Fig. 1. ~-----BOT IRON ROLLED IPLaTES .

Tata Steel - Hot rolled steel

In the example, the business manufactured 120,000 units and sold 110,000 units during the year, and its product cost per unit is $760. The 110,000 total units sold during the year is multiplied by the $760 product cost to compute the $83.6 million cost of goods sold expense, which is deducted against the company's revenue from selling 110,000 units during the year.

Coil & Sheet Calculators | Steel Warehouse

Paper Yield Calculator. First, select the unit of measurement. Next, enter the original basis/grammage weight and total weight. Then enter the new basis/grammage weight. For a quick reference guide on the basis weight impact on percentage paper yield, try this chart.

Paper Math Calculator - Find Your Paper Needs - Neenah Paper

Sep 12, 2007· Rolled Throughput Yield (RTY) Process 1 had a daily yield of 84% (84/100) while process 2 had a daily yield of 75% (82/110) and finally process 3 had a daily yield of 91% (126/138). So, to calculate RTY we simply multiply these yields together giving us a composite yield for the day. Doing this gives us: 84% x 75% x 91% = 57% ...

steel cost model - hot rolled coil conversion costs - hrc

Nov 27, 2015· The final dimensional quality of the rolled product is determined by the rolling stands within the finishing mill. The dimensional accuracy in the final product depends on many factors including the initial stock dimensions, roll pass sequence, temperature, microstructure, roll surface quality, roll and stand stiffness and the stock/roll friction condition.

Textile Calculation | Different Formula of Textile ...

The rolls induce plastic deformation. Thus, the yield strength of cold rolled steel is higher than that of hot rolled steel. As an example, a hot rolled steel product may have a yield strength of 235 MPa. In comparison, a cold rolled steel product with the same chemical composition has a yield …

Calculating Rolled Throughput Yield (RTY) | Gemba Academy

Key input costs are based on January 2020 world average costs, with ferrous scrap at ~$250/tonne and hot rolled coil at ~$485/t. Other factor costs e.g. electricity are from other pages shown on the Steelonthenet website, with factor usage (energy use, yield …

Advanced Reversing Cold Mills by Primetals Technologies

mill which is equal to the load coming on the rolls, as the load is just transmitted from the rolls to the housing through the chocks. Therefore the roll load is P = 0.4 Vout × E × Atotal Following are the results of the calculation of the roll load for various passes of the material through the

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Paper calculation. Standard methods to calculate paper and board characteristics require the use of the International System of Units (SI or SI metric units). Calculating paper. Details of SI are provided in the ISO Standards 31:1981 and 1000:1981. Some quantities can be expressed in different SI units.

The Calculation of Roll Force and Torque in Hot Rolling Mills

The following high crown C40 options available for hot-rolled products. Crown values on the C20-position as well as minimum crown values on both C20 and C40 position are also available on request. Maximum Crown C40 in µm values for hot-rolled steel with a low carbon content for cold forming (DD11-DD14 in EN 10111: 2008).

Hot Rolled Steel & Cold Rolled Steel - Difference & Advantages

Nov 21, 2018· Product yield measures the output as an indicator of productivity, efficiency and product quality for manufacturers. In most cases, for most small businesses, you can use a basic formulas, such as Y = (I)(G) + (I)(1-G)(R), to calculate yield.