Unlock instant, AI-driven research and patent intelligence for your innovation.
Control method of coiling staggered layers for medium carbon steel 50mn2v produced in short process
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A control method and short-flow technology, applied in the direction of rolling mill control devices, tension/pressure control, manufacturing tools, etc., can solve problems such as insufficient tension, strip steel breaking, and inability to solve steel coil staggering, etc., to achieve strong practicability, easy-to-handle effects
Active Publication Date: 2021-01-08
武汉钢铁有限公司
View PDF6 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
The above seven methods are suitable for controlling the misalignment problem at the head or tail of the steel coil, but cannot solve the misalignment problem of the entire steel coil. Moreover, for medium carbon steel 50Mn2V, which has high hardness and high strength, the entire coil Staggered layers are caused by insufficient coiling tension. Larger strip tension and greater coiling force between the pinch roller and the reel are required. However, if the tension is too high, production risks such as strip breakage will easily occur. , so it is necessary to focus on increasing the tension as the entry point, adjust the relevant matching parameters, and form a set of coiling control methods for medium-carbon steel 50Mn2V, which has high hardness and high strength. The above methods do not talk about tension-related control method, and the current control method cannot solve the staggered layer of medium carbon steel 50Mn2V steel coil
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0095] The medium carbon steel 50Mn2V used in this embodiment includes the following chemical components in mass percentage: C: 0.5113%, Mn: 1.597%, Si: 0.186%, P: 0.013%, S: 0.0027%, V: 0.103%.
[0096] Wherein, in order to obtain the target steel strip with a thickness of 2.0mm; each process parameter for controlling the coiling staggered layer is as follows list 5;
[0098] control process method unit Specific parameters Unit coiling tension N / mm 2
[0099] Adopting the above-mentioned process control, there was no problem of coiling misalignment throughout the year.
Embodiment 2
[0101] The medium carbon steel 50Mn2V used in this embodiment includes the following chemical components in mass percentage: C: 0.4951%, Mn: 1.511%, Si: 0.1865%, P: 0.01%, S: 0.0016%, V: 0.095%.
[0102] Wherein, in order to obtain the target steel strip with a thickness of 2.8mm; each process parameter of controlling the coiling staggered layer is as follows list 6;
[0104] control process method unit Specific parameters Unit coiling tension N / mm 2
[0105] Adopting the above-mentioned process control, there was no problem of coiling misalignment throughout the year.
Embodiment 3
[0107] The medium carbon steel 50Mn2V used in this embodiment includes the following chemical components in mass percentage: C: 0.512%, Mn: 1.631%, Si: 0.1765%, P: 0.012%, S: 0.0029%, V: 0.105%.
[0108] Wherein, in order to obtain the target steel strip with a thickness of 2.9mm; each process parameter of controlling the coiling staggered layer is as follows list 7;
[0109] Table 7 Process parameter list (3)
[0110] control process method unit Specific parameters Unit coiling tension N / mm 2
[0111] Adopting the above-mentioned process control, there was no problem of coiling misalignment throughout the year.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More
PUM
Login to View More
Abstract
The invention discloses a method for controlling a staggered coil layer of carbon steel 50Mn2V during short-process production, and belongs to the technical field of steel rolling. The method for controlling the staggered coil layer of the carbon steel 50Mn2V during short-process production comprises the following steps that (1) the unit tension of strip steel is controlled during coiling production; (2) tension distribution to an interval between a tail rack of a rolling mill and a pinch roll and an interval between the pinch roll and a coiling block is controlled; (3) the pressure of the pinch roll is set according to the thickness of the strip steel; and (4) the hysteresis of the pinch roll is set according to the thickness of the strip steel. By adoption of the method, a staggered layer of a steel coil of target strip steel with the thickness of 2.0-7.6 mm can be eliminated, and the edge overflowing rate is decreased below 0.12%.
Description
technical field [0001] The invention relates to an exploration process for qualified steel coils in the coiling manufacturing process, belongs to the technical field of steel rolling, and in particular relates to a method for controlling the coiling staggered layers of carbon steel 50Mn2V in short-process production. Background technique [0002] The usual diamond saw blade base material is 65Mn, but the service life of the saw blade is affected by defects such as large quenching deformation and poor welding performance. In recent years, the diamond saw blade matrix material 50Mn2V has been successfully developed. Since the material is added with 0.08% to 0.16% vanadium, the quenching performance is improved and the life of the saw blade is prolonged. [0003] Medium carbon steel 50Mn2V is the base material for diamond and saw blades. After heat treatment, it should have good matrix strength, wear resistance and welding performance. It is used as saw blade base, light abrasi...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to View More 
Login to View More