46results about How to "Shorten evaluation time" patented technology

A borate solution used to predict phosphorization ability of cold-rolled sheet has solute concentration of 0.01-0.1 / mole and its solution pH value is 4-6.9 under normal temperature of 20-30 deg.c.

The present invention pertains to the technical field of material testing, in particular to a metallic film specimen and its preparing method for evaluating and screening the stored materials in a museum. The invention uses modern and mature film-coating technology to coat silver and copper particle film in thickness of 100-300nm on surfaces of different substrates, so as to get the desired metallic film specimen. The invention can greatly reduce the use of metallic material, simplify operation and reduce cost; can avoid the shortcoming of poor repeatability of experimental data due to bulk metallic specimen, is good for digital analysis on the difference in specimen before and after corrosion, and overcomes any artificial error brought about by Oddy Test due to observation by naked eyes, and cangreatly reduce the test period, is good for popularization and application in great scale.

The invention discloses a method for quickly evaluating the phosphability of cold-rolled sheets. The steps are as follows: Step 1. Prepare a sodium tetraborate solution, and then adjust the pH value of the solution with hydrochloric acid at a concentration of 1:1, and the adjusted sodium tetraborate solution The solute concentration is 0.05 mol / liter, and the pH value of the solution at 25°C is between 5.5 and 6.9; step 2, place the cold-rolled sheet to be tested in the above-mentioned sodium tetraborate solution; step 3, use a potentiostat to record the cold The dynamic change process of the potential value of the rolling plate after entering the above solution, when an obvious inflection point appears, the test is terminated, and the potential-time record chart is obtained on the potentiostat; Steps 4 and 5, according to the abscissa of the inflection point on the potential-time record chart Value, that is, the time value of the inflection point, to judge the phosphating sensitivity of the cold-rolled sheet, and analyze and predict the phosphating film quality of the cold-rolled sheet after phosphating. The invention can quickly and accurately evaluate the phosphating characteristics of the cold-rolled sheet, predict the coating quality of the cold-rolled sheet, and has wide applicability.

The invention discloses a project hierarchical management evaluation method for optimizing subjective scores, which comprises the following steps of: sorting grouped evaluation data of projects to beevaluated, sorting overall evaluation data of experts for groups and sorting random spot check evaluation data of the projects, taking the three kinds of data as analysis inputs, and setting n projects to be evaluated, dividing the projects into m specialized groups; correcting and calculating a final score of the professional group according to results of the internal evaluation, the overall project and the project spot check; and correcting and calculating the final score of each project. The invention provides a data processing method. A sub-field evaluation result is corrected based on local information collection and an algorithm; and finally, integral evaluation is carried out on the completion conditions of all scientific research projects on the premise of the same standard. The result of original grouping subjective evaluation is reduced as much as possible, and finally, overall evaluation is performed on all scientific research project completion conditions on the premise ofthe same standard, so that the scale consistency and fairness and effectiveness of project evaluation can be kept while parallel evaluation of large-scale scientific research projects is ensured.

The invention provides an oil deposit well pattern and injection-production scheme optimum design method based on a balanced water drive idea. The method comprises the steps of 1, collecting and arranging block geological and development related data; 2, setting optimizing related parameters, and completing the well pattern and injection-production optimization preparation work; 3, adopting an oildeposit engineering method, predicting the displacement condition on each direction under current well location and injection-production parameters and performing quantitative evaluation; 4, adoptinga global random search algorithm, optimizing and generating novel well location / injection-production parameters, and predicting and evaluating the displacement condition in each injection-productiondirection under novel well location injection-production parameters; 5, arranging the optimization result, forming a well pattern injection-production design scheme, and performing on-site implementation. According to the method, the water drive development index calculation method built on the basis of the oil deposit engineering idea is combined with the optimization theory, the global random search algorithm is adopted for automatic solving, the calculation efficiency is ensured while the well pattern and injection-production scheme matched with the actual oil deposit is obtained, and the oil deposit recovery efficiency is improved.

The invention discloses a test structure of transistor alternating current hot carrier injection characteristics. The test structure comprises a PMOS P1 to be tested, an NMOS N1 to be tested and a test load N2. A grid electrode of P1 and a grid electrode of N1 are connected to serve as a test pin a of the test structure, a source electrode of the P1 serves as a test pin b of the test structure, a substrate electrode of the P1 serves as a test pin c of the test structure, a drain electrode of the P1 and a drain electrode of the N1 are connected to serve as a test pin d of the test structure, a substrate electrode of the N1 serves as a test pin e of the test structure, a source electrode of the N1 serves as a test pin of the test structure, one end of the test load N2 is connected with the test pin d, and the other end of the test load N2 is grounded to serve as a test pin g of the test structure. The test structure can accurately simulate the working state of a CMOS in a circuit, can accurately evaluate characteristic changes of the PMOS and the NMOS in the CMOS after the PMOS and the NMOS bear alternating current HCI stress, and can also evaluate characteristic changes of the CMOS after the CMOS bears the alternating current HCI stress.

An evaluation method for ultra-high cycle fatigue performance of carburized steel belongs to the field of material fatigue performance evaluation methods. The specific steps of the method include: according to the characteristic requirements of the carburized layer of the material application target, adjust the carburizing process to obtain simulated samples of the structure state of the carburized layer, the transition layer and the matrix layer respectively, and use ultrasonic fatigue testing equipment to respectively test different samples. The fatigue performance of the samples in the microstructure state is evaluated by the lifting method, and the fatigue limit S-N curve is obtained. Through comparative analysis, the minimum value of different groups of samples can be regarded as the safe fatigue limit of the carburized steel. This method adopts ultrasonic testing method for fatigue testing, which can be used for 10 7 More than once a week, such as 10 9 , 10 10 Compared with rotational bending fatigue, the fatigue performance evaluation of ultra-high cycle carburized steel can shorten the evaluation time by more than 95%. This method can be applied to different material systems such as aluminum alloys, titanium alloys, etc., and can also be used to evaluate the fatigue properties of other materials with heterogeneous microstructures.