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A self-adaptive method for strip laminar cooling temperature

A laminar cooling and self-adaptive technology, applied in temperature control and other directions, can solve problems such as the inability to meet the requirements of temperature control accuracy, achieve the effect of perfecting the self-learning system, solving the difference in cooling conditions, and improving the hit rate of coiling temperature control

Inactive Publication Date: 2011-12-21
SHANXI TAIGANG STAINLESS STEEL CO LTD
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Problems solved by technology

Therefore, using only three parts of temperature self-study for full-length strip temperature control obviously cannot meet the requirements of temperature control accuracy due to differences in cooling conditions on the surface of the strip

Method used

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  • A self-adaptive method for strip laminar cooling temperature
  • A self-adaptive method for strip laminar cooling temperature

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Embodiment Construction

[0008] After finishing rolling and thinning, the strip steel enters the coiler for coiling after laminar flow cooling. When the strip steel changes due to temperature, speed and other conditions, there are great differences in the cooling conditions of the strip steel surface. It is obvious that the temperature control of the full-length strip steel by using only three-point temperature self-study can not solve this difference and cannot meet the temperature control requirements. precision requirements. The self-learning system is the adjustment center of the whole control system, and the quality of the self-learning system is related to the control accuracy of the whole system. For this reason, a self-learning control point RSV1, RSV2, RSV3 is added at the head, middle, and tail of the strip. Encrypted six-point self-learning makes the self-learning system more perfect.

[0009] Table 1 shows the definitions of six self-learning point distances for rolled common carbon stee...

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Abstract

A strip steel laminar flow cooling temperature self-adaptive method, the purpose is to effectively solve the difference in strip steel surface cooling conditions and improve the hit rate of coiling temperature control; On the basis of the three-point self-learning method at the bottom, middle, and tail, add three more self-learning points: add a self-learning point RSV1 at the head of the strip; RSV1 indicates the position of this point from the top of the head of the strip. The position is defined by the distance; add a self-learning point RSV2 in the middle of the strip; RSV2 indicates the position of this point from the end of the strip end, which is defined by the distance; add a self-learning point RSV3 at the end of the strip; RSV3 indicates the distance from this point The position of the end of the strip tail, defined by distance.

Description

technical field [0001] The invention relates to a hot continuous rolling laminar flow cooling control technology. Background technique [0002] Strip coiling temperature control has become an important link in the hot rolling process, which directly affects the final microstructure and mechanical properties of the finished strip. Therefore, the coiling temperature control accuracy plays a crucial role in determining the mechanical properties of the strip. Laminar cooling control technology (CTC) is an indispensable method to control the coiling temperature (CT) of the strip to obtain the desired structure and properties of the finished product. The basic principle is to calculate the temperature drop based on the final rolling temperature of the strip, the coiling target temperature, and the rolling data of the strip, and to ensure The CT temperature of the strip entering the coiler meets the control requirements, thereby improving the structure and performance of the strip...

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Application Information

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IPC IPC(8): B21B37/74
Inventor 王津平朴永红
Owner SHANXI TAIGANG STAINLESS STEEL CO LTD
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