Austenitic stainless steel accurate steel strip performance prediction model and cold rolling process planning thereof

Abstract

The invention relates to a performance predicting model of an austenite stainless steel precise belt and a precision cold rolling process design thereof, which are characterized in that the stainless steel cold rolling board performance prediction model which is constructed through artificial neural network technology (such as Plexi neural network development environmental software) mainly comprises a data storing memory base, a computer artificial intelligent network, a final deformation degree predication module and a final deformation degree prediction value judging module. The model can implement the calculation of multivariate function according to all factors influencing the chemical properties of products, including chemical components, and the like, and implement the correction training on the performance prediction module according to collected production data to give the most appropriate final deformation degree. With the final deformation degree prediction value given by the prediction model applied, the precision cold rolling process design of the austenite stainless steel precise belt can be implemented conveniently with high efficiency and good effect. High quality austenite stainless steel precise belt finished products can be produced, the mechanical performance error of which is less than Vickers hardness of positive / negative eight units.

Description

technical field [0001] The invention relates to the manufacturing technology of steel strips, in particular to the rolling technology of cold-rolled stainless steel strips. Background technique [0002] Strip steel is a common metal product. Precision cold-rolled stainless steel strip is a kind of steel strip with high technical content. It can not only have precise dimensions, but also ensure the required mechanical performance indicators. The thickness of the finished steel strip can be as thin as 0.038mm, and the width can reach 1250mm; hardness (Vickers) can be controlled in the range of 135 to 600. [0003] There are two main inspection standards for finished stainless steel precision strips: (1) one is the size specification: the thickness and width of the finished product; (2) the other is the mechanical (mechanical) performance of the finished product: hardness and strength, mainly hardness (for The hardness and strength of the set stainless steel grades are basica...

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Problems solved by technology

[0012] The stainless steel precision steel strip manufactured by "incomplete stainless steel precision steel strip production process", due to the chemical composition of the stainless steel provided by the raw material supplier, cannot be selected, changed, predicted, and controlled for stainless steel cold rolling. Batches of stainless steel raw materials will have different chemical compositions (generally speaking, a stainless steel precision strip manufacturer has 4-5 main long-term raw material suppliers, and the chemical composition combinations between them are quite different, and cannot selection, different batches of raw material components are not the same, precision cold rolling process design is more difficult, and product quality assurance is also more difficult), which affects the stability of the mechanical properties of the final product, making most of the stainless steel precision steel at home and abroad Serial production with manufacturers becomes very difficult

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