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Enhua Bian, Saitama JP
| Patent application number | Description | Published |
|---|---|---|
| 20100180613 | EXPANSION VALVE - An expansion valve having a tubular member ( | 07-22-2010 |
Jian Bian, Moers DE
| Patent application number | Description | Published |
|---|---|---|
| 20100319812 | METHOD FOR PRODUCING A SURFACE-DECARBURISED HOT-ROLLED STRIP - Disclosed is a method which allows steel strip to be produced in which high hardness and good formability are combined. The following steps of operation are followed. | 12-23-2010 |
| 20110132502 | Method for Producing a Formed Steel Part Having a Predominantly Ferritic-Bainitic Structure - In a method to produce formed steel parts a primary steel material is provided, which (in % by weight) comprises C: 0.02-0.6%, Mn: 0.5-2.0%, Al: 0.01-0.06%, Si: max. 0.4%, Cr: max. 1.2%, P: max. 0.035%, S: max. 0.035%, and optionally one or more of the elements of the “Ti, Cu, B, Mo, Ni, N” group, with the proviso that Ti: max. 0.05%, Cu: max. 0.01%, B: 0.0008-0.005%, Mo: max. 0.3%, Ni: max. 0.4%, N: max. 0.01%, and the remainder as iron and unavoidable impurities. The primary material is heated through at a heating temperature (TA) lying between the Ac1 and the Ac3 temperature, such that at best incomplete austenitising of the primary material takes place, is placed into a press-form tool and formed therein into the formed steel part. The formed steel part is then heated to a bainite forming temperature (TB), which is above the martensite starting temperature (MS), however below the pearlite transformation temperature of the steel. After cooling, it is maintained for an austernpering period (tB) at the bainite forming temperature (TB) in a substantially isothermic manner, until the formed steel part has produced a structure consisting predominantly of ferrite and bainite, the martensite content thereof being <5%, wherein residual austenite contents of <10% may be present. The formed part is then cooled to room temperature. | 06-09-2011 |
Jian Bian, Duisburg DE
| Patent application number | Description | Published |
|---|---|---|
| 20090214892 | HIGH STRENGTH STEEL SHEET HAVING SUPERIOR DUCTILITY AND METHOD FOR MANUFACTURING THE SAME - A high strength steel sheet and a method for manufacturing the same has superior phosphatability properties and hot-dip galvannealed properties besides a tensile strength of 950 MPa or more and a high ductility, and also having a small variation in mechanical properties with the change in annealing conditions. | 08-27-2009 |
Ning Bian, Eschborn DE
| Patent application number | Description | Published |
|---|---|---|
| 20110015906 | METHOD AND DEVICE FOR DETERMINING A COEFFICIENT OF FRICTION - In a method for determining a coefficient of friction between a motor vehicle tire of a motor vehicle and the surface of a roadway, a first coefficient of friction parameter (μ | 01-20-2011 |
Ning Bian, Schborn DE
| Patent application number | Description | Published |
|---|---|---|
| 20100145566 | Method and facility for estimating a measure of friction - A friction coefficient between at least one tire of a motor vehicle and a roadway is estimated recursively. A kingpin inclination angle is detected or measured. A model determines a lateral friction value by defining a functional correlation between that value and the angle such that a non-linear course of that value relative to the angle is dependant on an initial increase of that value relative to the angle and on a recursively determined estimated value of the friction coefficient. The initial increase is defined substantially independently from the recursively determined estimated value. In addition, a measurement variable of the driving dynamics is captured. Depending on the lateral friction value, the driving dynamics model variable is determined. Furthermore, a variance between the driving dynamics measurement variable and the driving dynamics model value is determined. The recursion when acquiring the estimated value includes that the estimated value is adjusted. | 06-10-2010 |
Ning Bian, Esehborn DE
| Patent application number | Description | Published |
|---|---|---|
| 20100145567 | Method for determining a roadway state - The invention relates to a method for determining a roadway state (STATE) of a roadway on which a vehicle ( | 06-10-2010 |