Patent application number | Description | Published |
20120285584 | Manufacture Process Of Non-Oriented Silicon Steel With High Magnetic Induction - A manufacture process of non-oriented silicon steel with high magnetic induction includes smelting and casting steel having a chemical composition by weight percent: Si 0.1˜1%, Al 0.005˜1.0%, C≦0.004%, Mn=0.10˜1.50%, P≦0.2%, S≦0.005%, N≦0.002, Nb+V+Ti≦0.006%, and the rest is Fe. The steel is cast into a billet, which is heated and hot-rolled to 1150˜1200° C. into a plate at a finish-rolling temperature 830˜900° C. The plate is cooled to a temperature ≧570° C. and cold-roll flattened at compression ratio 2˜5%. The flattened plate is normalized at temperature not below 950° C. for 30˜180s, and then pickled and cold-rolled into a sheet with thickness of the finished product. The sheet is finish-annealed quickly heating the sheet to 800˜1000° C. at temperature rise rate ≧100° C./s, soaking the heated sheet for 5˜60s at the temperature, and then slowly cooling the sheet to 600˜750° C. | 11-15-2012 |
20120298267 | Non-Oriented Electrical Steel Having High Magnetic Induction And High Intensity And Manufacturing Method Thereof - A non-oriented electrical steel has relative high magnetic induction and high intensity without increasing manufacturing difficulty. The weight percentage of the compositions of the electrical steel are as follows: C≦0.0040%, Si is 2.50% to 4.00%, Al is 0.20% to 0.80%, Cr is 1.0 to 8.0%, Ni is 0.5 to 5.0%, Mn≦0.50%, P≦0.30%, S≦0.0020%, N≦0.0030%, Ti≦0.0030%, Nb≦0.010%, V≦0.010%, C+S+N+Ti≦0.010%, and a balance substantially being Fe and inevitable impurities. | 11-29-2012 |
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 |
20140066626 | ASYMMETRIC SYNTHESIS METHOD, RELATED RAW MATERIAL AND PREPARATION METHOD OF (S,S)-2,8-DIAZABICYCLO[4,3,0]NONANE - The present invention relates to an asymmetric synthesis method of a chiral intermediate (S,S)-2,8-diazabicyclo[4,3,0]nonane (I) of moxifloxacin, wherein an imide or enamine compound is obtained by dehydration reaction of the pyrrolidine-3-ketone as shown in formula (II) and chiral amine(R)-1-phenylethylamine, followed by the reduction of the imide or enamine compound to obtain a compound of formula (III) or (IV) having the chiral structure of formula (I), and then a compound of formula (I) is obtained by intramolecular cyclization, and removal of the chiral auxiliary group and amino-protecting group. The present invention also relates to pyrrolidine-3-ketone as shown in formula (II) and a preparation method therefor, | 03-06-2014 |
20140136674 | POLICY COORDINATION BETWEEN POLICY ENFORCEMENT POINTS - According to an example, a unified policy management system may include a session manager module to establish sessions with policy enforcement points. A notification manager module may receive an event trigger notification from a policy enforcement point via an interface session. A coordination engine may determine whether an event identified from the event trigger notification is to cause a change in policy enforced by another policy enforcement point and facilitate the change via another interface session. | 05-15-2014 |
20140317047 | ENHANCED TRANSACTIONAL CACHE WITH BULK OPERATION - Described herein is a technology for providing enhanced transactional caching. In accordance with one aspect, a transactional cache associated with a database is configured. Execution of a write operation on the database is delayed until a flush is determined to be necessary. The write operation is delayed by writing to the transactional cache. The flush is invoked by writing inserted or updated records in the transactional cache to the database via a bulk operation. | 10-23-2014 |
20140317048 | ENHANCED TRANSACTIONAL CACHE - Described herein is a technology for providing enhanced transactional caching. In accordance with one aspect, a transactional cache associated with a database is configured. The enhanced cache may support write operation by partial key or index. Execution of a write operation on the database is delayed until a flush is determined to be necessary. The write operation is delayed by performing the write operation on the transactional cache. The flush is invoked by performing a row-wise bulk operation that updates the database based on the transactional cache. | 10-23-2014 |
20140377124 | Non-Oriented Electrical Steel Plate and Manufacturing Process Therefor - Disclosed are a non-oriented electrical steel plate with low iron loss and high magnetic conductivity and a manufacturing process therefor. The casting blank of the steel plate comprises the following components: Si: 0.1-2.0 wt %, Al: 0.1-1.0 wt %, Mn: 0.10-1.0 wt %, C: ≦0.005 wt %, P: ≦0.2 wt %, S: ≦0.005 wt %, N: ≦0.005 wt %, the balance being Fe and unavoidable impurities. The magnetic conductivity of the steel plate meets the following relationship formula: μ | 12-25-2014 |
20150013844 | Non-Oriented Silicon Steel and Manufacturing Process Thereof - The present invention provides a non-oriented silicon steel with excellent magnetic properties and a manufacturing process therefor. During the manufacturing process of the present invention, the temperature T of the molten steel of steel tapped from a converter during steelmaking and the carbon content [C] and the free oxygen content [O] comply with the following formula: 7.27×10 | 01-15-2015 |
20150013847 | Method for Producing Silicon Steel Normalizing Substrate - A method for producing a silicon steel normalizing substrate comprises: steelmaking, hot rolling and normalizing steps. The normalizing step uses a normalizing furnace having a nonoxidizing heating furnace section. The nonoxidizing heating furnace section comprises more than 3 furnace zones. An energy investment ratio of the furnace zones used in the nonoxidizing heating furnace section is adjusted, so as to control an excess coefficient α of the nonoxidizing heating furnace section to be within a range of 0.8≦α<1.0. | 01-15-2015 |