Book of StandardsNational tube Company, 1913 - 553 σελίδες |
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Αποτελέσματα 1 - 5 από τα 81.
Σελίδα 8
... heat between the mandrel and the rolls . The tube then enters a similarly shaped pass to correct any irregularities and to give the outside diameter required . It will be noted that the outside diameter is fixed by these rolls ; any ...
... heat between the mandrel and the rolls . The tube then enters a similarly shaped pass to correct any irregularities and to give the outside diameter required . It will be noted that the outside diameter is fixed by these rolls ; any ...
Σελίδα 9
... heat , one ring being just behind the other , the second one being of smaller diameter than the first . Fig . 2. Butt - weld The pipes are then run through sizing and cross rolls similar to those used in the lap - weld process ...
... heat , one ring being just behind the other , the second one being of smaller diameter than the first . Fig . 2. Butt - weld The pipes are then run through sizing and cross rolls similar to those used in the lap - weld process ...
Σελίδα 10
... heat naturally produces a larger grain in the metal . This does not necessarily mean loss of ductility , but , where a large margin of safety against failure by shock is desired , the grain may be refined by annealing . The method ...
... heat naturally produces a larger grain in the metal . This does not necessarily mean loss of ductility , but , where a large margin of safety against failure by shock is desired , the grain may be refined by annealing . The method ...
Σελίδα 12
... Heating and Ventilating Engineers . American Society for Testing Materials , 1906 , 1908 ( Howe ) . " Corrosion of Iron , " A. Sang ( McGraw - Hill Publishing Company ) . ( Extensive bibliographs . ) ' ' ' Corrosion and Preservation of ...
... Heating and Ventilating Engineers . American Society for Testing Materials , 1906 , 1908 ( Howe ) . " Corrosion of Iron , " A. Sang ( McGraw - Hill Publishing Company ) . ( Extensive bibliographs . ) ' ' ' Corrosion and Preservation of ...
Σελίδα 14
... heating these billets a hole is drilled in the center of one end , so that the piercing point may be started ... heat , and passed through a reeling machine of special design , which further slightly reduces the gage . The tube ...
... heating these billets a hole is drilled in the center of one end , so that the piercing point may be started ... heat , and passed through a reeling machine of special design , which further slightly reduces the gage . The tube ...
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Συχνά εμφανιζόμενοι όροι και φράσεις
Angle Valves Area beam bending boiler tubes cent column compression cubic feet cubic foot cubic inch Steel cylinders deflection Diam diameter in inches Dimensions are Nominal direct tabular values Distance Radius elastic limit Fahrenheit fiber squared fiber stress fitting flange Foot for Steel foot length formula gage globe valve head heat Hydrostatic Test inches For Tubes inertia inside diameter iron joint lap-welded Length of Pole Lineal Foot load L Factor material miner's inches moment of inertia Number of Weight Pipe and Tubing Pounds per Lineal pounds per square pressure in pounds Properties of Tubes Radius from axis radius of gyration Round Bars Continued seamless sizes specific square inch Standard pipe steam Steel Pipe strength swaging tabular values direct temperature Test pressure thickness of wall threads and couplings Tubes and Round Tubes use differences valve velocity volume of wall water hammer Weight per foot welded ΙΟ
Δημοφιλή αποσπάσματα
Σελίδα 36 - The permissible variation in weight is 5 per cent above and 5 per cent below. Furnished with threads and couplings and in random lengths unless otherwise ordered.
Σελίδα 484 - CHAIN TONGS.— A pipe-fitter's tool; a lever with a serrated end provided with a chain to enlace the pipe. The chain is wrapped around the pipe to hold the lever in place, and the teeth on the end of the latter grip into the pipe, thus affording a powerful leverage to screw or unscrew the joints.
Σελίδα 460 - System. The fundamental unit of the metric system is the METER — the unit of length. From this the units of capacity (LITER) and of weight (GRAM) were derived.
Σελίδα 312 - The following is a list of convenient equivalents for use in hydraulic computations : 1 second-foot equals 40 California miner's inches (law of March 23, 1901). 1 second-foot equals 38.4 Colorado miner's inches. 1 second-foot equals 40 Arizona miner's inches. 1 second-foot equals 7.48 United States gallons per second; equals 448.8 gallons per minute; equals 646,272 gallons for one day. 1 second-foot equals 6.23 British imperial gallons per second. 1 second-foot for one year covers 1 square mile 1.131...
Σελίδα 253 - The bending moment at any section of a beam is equal to the algebraic sum of the moments of the forces on either side of the section.
Σελίδα 320 - Mariotte.s law states that the volume of a gas varies inversely with the pressure to which it is subjected.
Σελίδα 460 - Measures of Weight 10 milligrams (mg) =1 centigram eg 10 centigrams =1 decigram dg 10 decigrams =1 gram g 10 grams =1 dekagram Dg 10 dekagrams =1 hektogram Hg 10 hektograms =1 kilogram Kg...
Σελίδα 510 - Wye; Y. A fitting either cast or wrought that has one side outlet at any angle other than 90°. Usually set 45", and always so set unless angle is specified. It is usually indicated by letter Y.
Σελίδα 499 - Packing. — (1) A general term relating to yielding material employed to effect a tight joint. A common example is the sheet rubber used for gaskets. The term is also applied to the braided hemp or metallic rings used in some joints, that allow considerable or incessant motion. The British grummet is another example.
Σελίδα 96 - The tensile strength, limit of elasticity, and ductility shall be determined from a standard test piece cut from the finished material. The standard shape of the...