Patent application number | Description | Published |
20130033113 | PHOTOVOLTAIC SYSTEMS WITH VOLTAGE BALANCERS - A photovoltaic module includes N sub-modules electrically connected to each other such that the negative terminal of any one but the last sub-module is electrically connected to the positive terminal of the immediate next sub-module, and N−1 voltage balancers, each having a first terminal, a second terminal and a third terminal. The second and third terminals of any one but the last voltage balancer are electrically connected to the third and first terminal of the immediate next voltage balancer, respectively. The first terminal of the first voltage balancer is electrically connected to the positive terminal of the first sub-module. The second terminal of the last voltage balancer is electrically connected to the negative terminal of the last sub-module. The third terminal of the j-th voltage balancer is electrically connected to both the negative terminal of the j-th sub-module and the positive terminal of the (j+1)-th sub-module. | 02-07-2013 |
20130090876 | METHOD FOR DETECTING ELECTROMAGNETIC PROPERTY OF ORIENTED SILICON STEEL - A method for detecting electromagnetic property of oriented silicon steel, the method comprises: measuring Euler angles of each of crystal grains in a specimen by use of metallographic etch-pit method; calculating orientation deviation angle θ | 04-11-2013 |
20130199675 | MANUFACTURE METHOD OF HIGH-EFFICIENCY NON-ORIENTED SILICON STEEL WITH EXCELLENT MAGNETIC PERFORMANCE - A manufacture method of high-efficiency non-oriented silicon steel with excellent magnetic property, which comprises the following steps: 1) smelting and casting; chemical compositions of non-oriented silicon steel, by weight percent, are: C≦0.0040%, Si: 0.1˜0.8%, Al: 0.002˜1.0%, Mn: 0.10˜1.50%, P: ≦0.2%, Sb: 0.04˜0.08%, S≦0.0030%, N≦0.0020%, Ti≦0.0020%, and the rest is Fe and unavoidable inclusions; molten steel in accordance with the above compositions is smelted and then casted into billets; 2) hot-rolling and pickling; heating temperature for slab is 1100° C.˜1150° C. and finish-rolling temperature is 860° C.˜920° C.; after rolling, the hot-rolled product is air cooled, during which air cooling time t: (2+30×Sb %)s≦t≦7 s; thereafter reeling at a temperature ≧720° C. ; 3) cold-rolling; rolling to form cold-rolled plate with target thickness at a reduction ratio of 70˜18%; 4) annealing; heating up the cold-rolled plate to 800˜1000° C. at heating rate of ≧15° C./s, and holding time is 10 s˜25 s. Under the precondition to ensure magnetic properties, this invention implements low cost manufacture of high efficiency electric steel by adding elements advantageous to favorable texture during steel making, controlling contents of adverse elements and coordinating air cooling time control during hot-rolling with high temperature reeling. | 08-08-2013 |
20130203896 | Chromium-Free Insulation Coating Material for Non-Oriented Silicon Steel - The present invention refers to a chromium-free insulation coating material for non-oriented silicon steel, comprising, in parts by weight, the following components: metal dihydrogen phosphate salt of 100 parts, epoxy resin of 10˜60 parts, naphthenate drier or isooctanoate metal salt drier of 0.001˜10 parts, organic solvent of 0.001˜100 parts and pure water of 60˜2000 parts. The metal dihydrogen phosphate salt is Al(H | 08-08-2013 |
20130264877 | SOLAR CELL PACK AND METHOD FOR BALANCING OUTPUT CURRENTS OF SOLAR CELL MODULES - The present disclosure provides a solar cell pack and a method for balancing currents of solar cell modules. The solar cell pack includes a first solar cell module, a second solar cell module, a first balancer, a sampler and a controller. A negative pole of the first solar cell module is electrically connected to a positive pole of the second solar cell module. The first balancer is electrically connected to the first and the second solar cell modules in order to balance the current flowing through the both solar cell modules. An input terminal of the sampler is electrically connected to the first and the second solar cell modules. An output terminal of the sampler is electrically connected to an input terminal of the control unit. An output terminal of the control unit is electrically connected to an input terminal of the first balancer. | 10-10-2013 |
20130292034 | METHOD AND APPARATUS FOR FABRICATING SEPARATOR ASSEMBLY - The present invention provides a method and apparatus for fabricating a separator assembly. The method comprises: providing a central core element comprising at least one concentrate exhaust conduit and at least one permeate exhaust conduit; disposing a first portion of a membrane stack assembly comprising a permeate carrier layer, a membrane layer, and a feed carrier layer within the central core element such that the concentrate exhaust conduit and permeate exhaust conduit are separated by the first portion of the membrane stack assembly; radially winding a second portion of the membrane stack assembly around the central core element; and sealing the wound assembly comprising two opposing end surfaces made of the membrane stack assembly by applying an adhesive on both end surfaces of the wound assembly; and applying a negative pressure inside the central core element so that the adhesive penetrates into the membrane stack assembly. | 11-07-2013 |
20130299049 | MANUFACTURE METHOD OF ORIENTED SILICON STEEL HAVING GOOD MAGNETIC PERFORMANCE - A method for manufacturing a grain-oriented silicon steel having excellent magnetic performance, comprising steps as follows 1)conventionally melting and casting into a steel blank; 2) heating the steel blank and hot rolling the same into a strip of steel; 3)normalizing process; carrying out the normalizing process having two stages, wherein the strip is firstly heated to 1100˜1200° C., then cooled to 900˜1000° C. within 50˜200 s; and next, the strip is rapidly cooled in water having a temperature of 10-100; in this period, a tension force is applied to the strip of steel, the strip of steel in the temperature range of 900 ° C.˜500° C. has a stress of 1˜200N/mm | 11-14-2013 |
20150255211 | Manufacturing Method of Common Grain-Oriented Silicon Steel with High Magnetic Induction - A manufacturing method of oriented silicon steel with magnetic induction B8 of not less than 1.88 T, comprising the following steps: 1) smelting and continuous casting to obtain a slab, wherein the content of N is controlled at 0.002-0.014 wt % in the smelting stage; 2) hot-rolling; 3) cold-rolling; 4) decarbonizing and annealing; 5) nitriding treatment, wherein infiltrated nitrogen content [N] | 09-10-2015 |