2 edition of Noncontact measurement of the exit temperature of sheet metal in an operating rolling mill found in the catalog.
Noncontact measurement of the exit temperature of sheet metal in an operating rolling mill
by U.S. Dept of Commerce, Technology Administration, National Institute of Standards and Technology in Gaithersburg, Md
Written in English
|Statement||Arnold Kahn ... [et al.].|
|Series||NISTIR -- 5058.|
|Contributions||Kahn, Arnold., National Institute of Standards and Technology (U.S.)|
|The Physical Object|
|Number of Pages||22|
Hot rolling processes generally use oil in water emulsions, steam, or no lubricant at all (dry rolling).6'11 Cold rolling lubricants, however, can vary significantly from metal to metal and from individual mill to individual mill.8'11 A summary of the typical base lubricants used in rolling mills by nonferrous metal type is given in Table Rolled Metal Characteristics • Residual stresses • Dimensional tolerances for cold-rolled sheet thicknesses +/- mm to mm ( to inch) • Flatness tolerances to within +/- 15 mm/m (3/16 inch/foot) for cold rolling, +/- 55 mm/m (5/8 inch/foot) for hot rolling • Hot rolling and sand casting produce similar ranges for.
temperature T m,o and the total hear rate q for the tube. b) The air outlet temperature may be controlled by adjusting the tube mass flow rate. Compute and plot T m,o as a function of m for ≤ ≤ kg/s. If a particular drying process requires approximately 1 kg/s of air at 75 C, what design and operating. of stabilizers added to the resin and the time-temperature requirements of the manufacturing processes. AASHTO requires the certification of properties and qualities of drainage pipe resins, including density, melt index, flexural modulus, tensile strength, ESCR and/or SP-NCLS tests. See Section of the included Plastic Pipe Institute’s.
(i) To plot temperature vs. distance curve from experimental measurements. (ii) To plot temperature vs. distance curve from theoretical analysis. (iii) To determine thermal conductivity of the metal specimen. Experimental Set up: Operation procedure 1. Check the room temperature by an analog thermometer and then calibrate the digital. If you can extract this 3ω signal with a lock-in amplifier, the temperature rise will be calculated as (2*V3ω)/(α*Vω) where α is the temperature coefficient of resistance of the metal. Try if.
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15 November Noncontact measurement of the exit temperature of sheet metal in an operating rolling mill Stephen R. Schaps, George Alers, Arnold Kahn, Louis C. Phillips Author Affiliations +Author: Stephen R. Schaps, George Alers, Arnold Kahn, Louis C.
Phillips. Noncontact measurement of the exit temperature of sheet metal in an operating rolling mill Author: Arnold Kahn ; National Institute of Standards and Technology (U.S.). In order to monitor the temperature at the exit end of a hot rolling mill, the Aluminum Association and NIST entered into a Cooperative Research and Development Agreement to use the sheet itself as the basic element of a resistance thermometer.
The non-contacting requirement can be satisfied by using eddy current techniques, and the temperature can be deduced from the basic Author: Stephen R. Schaps, George Alers, Arnold Kahn, Louis C.
Phillips. These instruments can simultaneously measure centerline and transverse thickness, temperature, profile, width, edge drop and shape of a steel strip at the exit of a hot rolling mill. This helps improve operating practices with this wealth of process control data, thereby increasing mill throughput and yield.
John Heine founder John Heine, Australia's leading manufacturer of sheet metal working machi Noncontact measurement of the exit temperature of sheet metal in an operating rolling mill [microform] / Power presses hydraulic presses, canister and sheet metal working machinery.
Noncontact measurement of the exit temperature of sheet metal in an operating rolling mill. Article. Nov ; Lamb wave measurements for rapid monitoring of sheet metal. Article. May. Accurate thickness measurement of process-line steel ensures the finished products have specific mechanical properties.
Thermo Scientific™ Noncontact Thickness Gauges for Cold Rolling and Process Lines provide reliable, noncontact thickness measurement of flat sheet metal. Advanced Search >. Home > Proceedings > Volume Rolling is a metal forming process in which metal stock is passed through a pair of rolls.
There are two types of rolling process - flat and profile rolling. In flat rolling the final shape of the product is either classed as sheet, also called "strip" (thickness less than 3 mm,) or plate (thickness more than 3 mm). Design For Manufacturability – Sheet Metal Guidelines Bends For the ease of manufacturing, multiple bends on the same plane should occur in the same direction.
Avoid large sheet metal parts with small bent flanges. In low carbon steel sheet metal, the minimum radius of a bend should be one-half the material thickness or mm.
ASTM's steel standards are instrumental in classifying, evaluating, and specifying the material, chemical, mechanical, and metallurgical properties of the different types of steels, which are primarily used in the production of mechanical components, industrial parts, and construction elements, as well as other accessories related to them.
MechHEAT TRANSFER HOMEWORK Solutions 4. (Problem in the Book) A vertical plate m high, maintained at a uniform temperature of 54oC, is exposed to saturated steam at atmospheric pressure.
a) Estimate the condensation and heat transfer rates per unit width of the plate. The temperature at which a metal loses its spontaneous magnetization is known as the Curie temperature. Nickel has the lowest Curie point of the single elements and ceases to become magnetic at degrees Celsius ( degrees Fahrenheit), whereas cobalt remains magnetic until 1, degrees Celsius (2, degrees Fahrenheit).
Hot metal is travelling a long distance (around m) between roughing mill and a Steckel finishing mill during hot rolling process in a steel plant which resulted in heat loss.
Since, the metallurgical qualities of finished product are closely. A precision rolling mill, built inwith mm roll diameter of the Prymetall company was used for the experiments.
During the rolling of the OF-Cu bars the rolling force was measured. There were no forward and backward tensions applied on the copper bars and rolling speed was reduced to a minimum of about m/min. Straightening, bending and rolling Fitting and reaming Fastening (bolting, riveting and welding) Finishing Quality control Surface treatment Transportation Surface cleaning Structural sections from the rolling mills may require surface cleaning to emove mill r scale prior to fabrication and painting.
Non-contact temperature measurement on metal surfaces via infrared. To comply given temperatures is a process and quality defining factor during almost all industrial production stages. Contactless measuring infrared thermometers are well known for temperature measurements.
This also applies for the measurement of metals. Description: Power on/off Metric/Inch Conversion Zero Setting at Any Position Data Output Interface Resolution: "/mm Measuring Range: "/25mm Model No. Mini Digital Thickness/Groove Gage. Type: Caliper.
In a traditional rolling mill rolling is done in several passes, but in tandem mill there are several stands (>=2 stands) and reductions take place successively. The number of stands ranges from 2 to Tandem mills can be either of hot or cold rolling mill types.
RUBM has installed three stand tandem mill to enhance productivity. Mainly sheet metal process can be divided into three types. The first one is sheet metal cutting, second one is sheet metal bending or forming and the last one is known as deep this article we mainly focus on sheet metal cutting operations and.
Noncontact measurement of the exit temperature of sheet metal in an operating rolling mill By attaching a high temperature version ofa conventional eddy current conductivity meter probe to the contact thermocouple, it is possible to measure both the temperature T .Direct measurements of the coefficient of friction in flat rolling are possible by following the suggestions of Pavlov, quoted in Underwood's text (Underwood, ).By applying a large tension to the strip, the neutral point is moved to the exit, allowing the inference of the magnitude of the coefficient from the measured roll force and torque.Proximity sensors detect the presence or absence of objects using electromagnetic fields, light, and sound.
There are many types, each suited to specific applications and environments.