Abstract: A control method and apparatus for continuous casting steel pouring are provided, wherein the amount of the molten steel flow of the ladle is controlled, thereby improving the yield of the molten steel and decreasing the production cost.

Abstract: A system and a method for estimating a reservoir parameter are provided. The method includes calculating a plurality of priors using a Markov random field, the plurality of priors comprising probability distributions of a plurality of litho-types; calculating posterior distributions based on the priors, the posterior distribution depending upon measured geophysical data, geophysical attributes and reservoir parameters; and determining at least a portion of litho-types in the plurality of litho-types that correlate most with the measured geophysical data.

Abstract: The present invention discloses a control method for continuous casting steel pouring, wherein: Step one: measuring and reading a steel ladle pouring position signal by a steel ladle position sensor (14) mounted on a turntable of a steel ladle; Step two: judging whether the pouring of the steel ladle (1) has begun therein by a steel pouring optimization control computer (13); Step three: feeding a data of a steel slag measurement sensor (2) mounted above a steel ladle sliding nozzle (15) to an inferential controller; Step four: in the inferential controller, conducting a comparison between the read data of the steel slag measurement and the manually set value of steel slag, and back to the former step if the measured value of the steel slag measurement is smaller than the manually set value of steel slag; if the current measured value of the steel slag measurement is greater than the manually set value of the steel slag, outputting and feeding a cylinder control variable to a PI controller; Step five: conduct

Abstract: A system and a method for estimating a reservoir parameter are provided. The method includes calculating a plurality of priors using a Markov random field, the plurality of priors comprising probability distributions of a plurality of litho-types; calculating posterior distributions based on the priors, the posterior distribution depending upon measured geophysical data, geophysical attributes and reservoir parameters; and determining at least a portion of litho-types in the plurality of litho-types that correlate most with the measured geophysical data.

Abstract: For fillet welding, sufficient amounts of metal must be deposited in order to make welds with sufficient sizes. In conventional submerged arc welding (SAW), the heat input is proportional to the amount of metal melted and is thus determined by the required weld size. In order to reduce the needed heat input, Double-Electrode SAW (DE-SAW) method is used for fillet joints. To minimize the heat input required to produce the welds with required geometry and sizes, a gap is introduced between the panel and the tee forming a modified fillet joint design. The use of the gap improves the ability of DE-SAW to produce the required weld beads at reduced heat input and penetration capability. Major parameters including the gap, travel speed and heat input level have been selected/optimized/minimized to produce required fillet weld beads with a minimized heat input based on qualitative and quantitative analyses.

Abstract: In gas tungsten arc welding (GTAW), the achievable deposition rate of the filler wire is coupled with the arc energy and the mass of the molten metal in the weld pool. In this invention, a side arc is added into the GTA (gas tungsten arc) between the wire and the same tungsten that establishes the GTA with the work-piece. While its anode provides a GMAW (gas metal arc welding) melting mechanism to completely melt the wire at high speeds, the undesirable dependence of deposition rate on the weld pool mass is also eliminated. As a result, the deposition rate is increased and the ability to provide desirable deposition rate and base metal melting/penetration freely without coupling is established for the GTAW.

Abstract: A welding system and method includes a main torch including a main electrode configured to form a first arc with a base metal; a first bypass torch including a first bypass electrode configured to form a second arc with the main electrode; and a second bypass torch including a second bypass electrode configured to form a third arc with the main electrode.

Abstract: A welding system and method includes a main torch including a main electrode configured to form a first arc with a base metal; a first bypass torch including a first bypass electrode configured to form a second arc with the main electrode; and a second bypass torch including a second bypass electrode configured to form a third arc with the main electrode.

Abstract: A welding system and method includes a main torch including a main electrode configured to form a first arc with a base metal; a first bypass torch including a first bypass electrode configured to form a second arc with the main electrode; and a second bypass torch including a second bypass electrode configured to form a third arc with the main electrode.

Abstract: A welding system and method includes a main torch including a main electrode configured to form a first arc with a base metal; a first bypass torch including a first bypass electrode configured to form a second arc with the main electrode; and a second bypass torch including a second bypass electrode configured to form a third arc with the main electrode.