... next spot The resistance spot welding machines are constructed so minimum resistance will be apparent in the transformer, flexible cables, tongs, and electrode tips The resistance spot welding machines ... a resistance spot weld nugget compared to a gas tungsten-arc (TIG) spot weld ÉÉ ÉÉ RESISTANCE SPOT TUNGSTEN ARC SPOT Figure 4-1 Resistance And TIG Spot Weld Comparison The gas tungsten-arc spot ... clarity, the various parts of the resistance spot welding machine are identified Trang 10SECTION 4 − FUNDAMENTALS OF RESISTANCE SPOTWELDING 4-1 Principle Resistance welding is accomplished when current
Ngày tải lên: 25/01/2014, 20:20
... WELDING MACHINES Giới thiệu máy hàn Tổ Hàn & NDT WELDING MACHINES Nội dung & Mục đích Giới thiệu chung máy hàn Các yếu tố ... loại máy hàn sử dụng công ty Máy hàn SMAW Máy hàn GTAW Máy hàn GMAW/FCAW Máy hàn SAW WELDING MACHINES Bảng thống kê số lượng loại máy hàn công ty STT Loại máy Số lượng Đơn vị Ghi GTAW 180
Ngày tải lên: 19/12/2013, 16:50
Welding processes5 resistance welding
... specialized machinery (generally non- portable) Many facilities now automated Low operator skill level Trang 4Resistance Spot Welding The simplest and most commonly used resistance-welding process ... (b) Trang 7Resistance Spot Welding Widely used for fabricating sheet metal parts Modern equipment is computer controlled for optimum timing of current and pressure; spot welding guns are ... are manipulated by programmable robots FIGURE 31.8 Spot-welded (a) cookware and (b) muffler (c) An automated spot-welding machine The welding tip can move in three principal directions Sheets
Ngày tải lên: 12/03/2014, 17:40
Evaluation of host plant resistance for blast and brown spot diseases of paddy in hill zone of Karnataka, India
... screened for brown spot disease out of which none of the entries found highly resistance and entries i.e., IET-23403, 22876 and 23392 were found resistant reaction to brown spot disease The remaining ... know the source of resistance against neck blast and brown spot diseases under natural epiphytotic condition 244 rice germplasm lines were evaluated against neck blast and brown spot diseases These ... varieties/genotypes against leaf and neck blast and brown spot diseases were carried out during Kharif 2014 at AHRS, Ponnampet to identify the sources of resistance under field conditions 244 entries were
Ngày tải lên: 14/01/2020, 01:16
Identification of a novel major locus for gray leaf spot resistance in Italian ryegrass (Lolium multiflorum Lam.)
... GLS resistance gene locus on ryegrass LG 3 reported by Curley et al [11] We designated the resistance gene LmPi2 as a novel gene for GLS resistance in ryegrasses Results Evaluation of GLS resistance ... factors for the resistance phenotype against GLS in the F1population can be explained by a function of the single resistance locus The resistance locus was confirmed as a novel GLS resistance locus, ... grey leaf spot resistance in Italian ryegrass Eur J Plant Pathol 2010, 126:333 –342. 11 Curley J, Sim SC, Warnke S, Leong S, Barker R, Jung G: QTL mapping of resistance to gray leaf spot in ryegrass
Ngày tải lên: 27/05/2020, 00:22
High-resolution mapping and characterization of qRgls2, a major quantitative trait locus involved in maize resistance to gray leaf spot
... gray leaf spot (GLS) resistance genes in maize Theor Appl Genet 2001, 103(5):797–803 Bubeck D, Goodman M, Beavis W, Grant D: Quantitative trait loci controlling resistance to gray leaf spot in ... leaf spot resistance in Southern African maize germplasm Crop Sci 2008, 48(1):93–98 11 Brito AH, Davide LMC, Pinho RGV, Carvalho RP, Reis MC: Genetic control of resistance to gray leaf spot of ... controlling resistance to gray leaf spot disease in maize Theor Appl Genet 1996, 93(4):539–546 15 Clements MJ, Dudley J, White D: Quantitative trait loci associated with resistance to gray leaf spot
Ngày tải lên: 27/05/2020, 01:10
identification of a novel major locus for gray leaf spot resistance in italian ryegrass lolium multiflorum lam
... GLS resistance gene locus on ryegrass LG 3 reported by Curley et al [11] We designated the resistance gene LmPi2 as a novel gene for GLS resistance in ryegrasses Results Evaluation of GLS resistance ... factors for the resistance phenotype against GLS in the F1population can be explained by a function of the single resistance locus The resistance locus was confirmed as a novel GLS resistance locus, ... grey leaf spot resistance in Italian ryegrass Eur J Plant Pathol 2010, 126:333 –342. 11 Curley J, Sim SC, Warnke S, Leong S, Barker R, Jung G: QTL mapping of resistance to gray leaf spot in ryegrass
Ngày tải lên: 02/11/2022, 11:36
Machine Design 7 March 2013
... including plastic injection-molding machines, offshore-drilling equipment, and up-machine tools Learn more at www. boschrexroth-us.com/filter. RS# 105 MARCH 7, 2013 MACHINE DESIGN.com 6 Trang 100RWLRQ,QGXVWULHVFRP ... Fluid inlet Machined slots Edited by Stephen J Mraz See-through housing enables visual check of filter and fluid Request free information vi a our Reader Service Web site at www.machinedesign.com/ ... integral-horsepower motors difference-between-asynchronous- and-synchronous-motors-0103 machinedesign.com/article/the-MARCH 7, 2013 MACHINE DESIGN.com 21 Trang 25Thousands of enclosuresHundreds of sizes Next-day
Ngày tải lên: 25/03/2013, 12:46
design manual for machine lubrication
... finest and costliest machines Textile mills, rolling mills and rubber factories have applied it to existing machines with excellent results Trang 4Benefits of Micro-Fog Machine Lubrication Greater ... of the machine design Rating the Machine Lubrication Requirements Bearing-Inch The term Bearing-inch has long been in use as an arbitrary means of computing lubrication requirements for machine ... requirements of the machine by rating the machine elements 2 Select the reclassifiers 3 Determine the required lubrication capacity of theMicro-Fog lubricator by totaling the machine elementreclassifier
Ngày tải lên: 09/08/2013, 15:00
FOREX-3 (spot+forward)_CO MAI
... hợp đồng (T+2) Trang 7 Spot value date Ví dụ: Ngày kí HĐ mua ngoại tệ giao ngay là ngày 1/6 - spot value date = J+2 = 3/6 - Nếu ngày 2/6 hoặc ngày 3/6 là ngày nghỉ thì spot value date sẽ được ... Trang 61 Spot transaction Bản chất: là GD mua bán ngoại tệ, trong đó việc thanh toán và giao nhận ngoại tệ xảy ra đồng thời Th i gian giao ngo i h i và thanh toán ờ ạ ố = ngày giá trị (spot ... của các tổ chức tín đụng được phép hoạt động ngoại hối. Trang 51 Giao dịch ngoại hối giao ngay (Spot transaction) Định nghĩa: “là GD mà theo đó 2 bên thực hiện mua bán 1 lượng ngoại tệ theo
Ngày tải lên: 12/08/2013, 10:03
Simulation of the thermal borehole resistance in groundwater filled borehole heat exchanger using CFD technique
... transfer resulting in quite low borehole thermal resistances (Rb=0.06-0.08 m·K·W-1 using heat injection) compared to many other filling materials The thermal resistance in the borehole is of great importance ... A high resistance will result in a larger temperature difference between the borehole wall and the circulating fluid If e.g heat is extracted from the borehole, a high borehole thermal resistance ... which decreases the efficiency of the pump compared to a lower resistance In groundwater-filled boreholes the borehole thermal resistance will change depending on water temperatures and injection
Ngày tải lên: 05/09/2013, 14:58
Handbook of Machine Design P48
... connections) or even more A commonly used ter- connec-tiary link is the bell crank familiar to most machine designers Since our primary Trang 2FIGURE 41.1 Kinematic pairs useful in linkage design ... particular spatial linkages = 6 for most spatial linkages Since the majority of linkages used in machines are planar, the particular case forplane mechanisms with one degree of freedom is found
Ngày tải lên: 17/10/2013, 12:15
Handbook of Machine Design P50
... energy trans-fer occurring throughout the machine cycle has been defined 43.2 FLOWPLOTS The next step is to define the rate of energy transfer in the machine This is a func-tion of the velocities ... limita-tions of the equipment Even more important, the designer should be able to spot anymalfunctions of the machine much more quickly and surely than if she or he had toguess what combinations ... input), and the rows representing machine functions, as typified by the actuators The circuit designer can now select functions to match the requirements of themachine functions 43.6 OPEN-LOOP
Ngày tải lên: 19/10/2013, 20:15
Handbook of Machine Design P52
... pressure level measurements obtained for a machine in prob-an prob-anechoic chamber may need to be used to estimate the sound pressure level ofthe same machine at a different distance inside an ... Unlimited 45.4 NOISECONTROL Noise control can be incorporated in the design of machinery either by treating thesources of machine noise or by altering the structureborne and/or airborne paths ofthis ... discussion of these different options for machinerynoise control 45.4.1 Source Control Controlling noise at the source is often the most cost-effective procedure formachine design Specific components,
Ngày tải lên: 23/10/2013, 18:15
Handbook of Machine Design P2
... with other equipment to make a complete machine. A machine outline drawing is provided to other engineering departments or to customers who purchase that machine for installation An example is ... machining A bushing, for example, may be pressed into the machine bore of the upper end of an engine connecting rod, and the bushing bore may then be machined to a specified dimension. A group drawing ... that convey instructions for the manufacturing of components, the assembly of components into machines, machine installations, and maintenance Additional information is provided by parts lists and
Ngày tải lên: 23/10/2013, 18:15
Fundamentals of Machine Design P37
... tensions • Some commonly used design parameters 13.1.1 Flexible Machine Elements Belt drives are called flexible machine elements. Flexible machine elements are used for a large number of industrial ... Publication, 5th Edition 1989 3 M.F Spotts, Design of Machine Elements, Prentice Hall India Pvt Limited, 6th Edition, 1991 4 Khurmi, R.S and Gupta J.K., Text book on Machine Design, Eurasia Publishing ... Flexible machine elements has got an inherent advantage that, it can absorb a good amount of shock and vibration. It can take care of some degree of misalignment between the driven and the driver machines
Ngày tải lên: 25/10/2013, 12:15