H-beam hot rolling production method
A production method and section steel technology, applied in the direction of metal rolling, guiding/positioning/alignment devices, etc., can solve the problems of lower yield, large center deviation of head and tail, increase the amount of cutting head and tail, and achieve the degree of left and right swing Weaken and reduce the center deviation of the head and tail, and reduce the effect of cutting the head and tail
Active Publication Date: 2022-05-13
MAANSHAN IRON & STEEL CO LTD
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
When the center deviation of the head and tail of the H-beam does not meet the requirements of the customer or the standard, it is necessary to increase the head and tail trimming amount, which will greatly reduce the yield
[0003] The main reason for the large center deviation of the head and tail of the hot-rolled H-beam is that the head and tail are in an unstable state when the rolled piece is bitten from the entrance side of the rolling mill or thrown out from the exit side, that is, the head and tail will be in an unstable state. Swing on both sides of the rolling direction, the center deviation caused by the swing of each pass is superimposed, and finally leads to the abnormally large center deviation of the head and tail of the finished product
[0004] At present, there is no effective method to control the head and tail center deviation of hot-rolled H-beam
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0039] The specific embodiment of the present invention will be described in further detail by describing the embodiments below with reference to the accompanying drawings. The purpose is to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solutions of the present invention. and contribute to its implementation.
[0040] It should be noted that in the following embodiments, the "first" and "second" do not represent an absolute distinction in structure and / or function, nor do they represent a sequence of execution, but are only for Easy to describe.
[0041] Such as figure 1 As shown, the invention provides a kind of H-beam hot-rolled production method, comprises the steps:
[0042] S1, billet heating;
[0043] S2, high pressure water descaling;
[0044] S3, billet rolling;
[0045] S4, universal rolling;
[0046] S5, red check;
[0047] S6, double-foot upper cooling bed cooling;
[0048] S...
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 hot rolling production method of H-shaped steel, comprising steps: S1, billet heating; S2, high-pressure water descaling; S3, billet rolling; S4, universal rolling; the step S3 includes: S301, rolling Before the workpiece enters the BD rolling mill, the pusher clamps the rolled piece; S302, the rolled piece bites into the BD rolling mill; S303, the BD rolling mill rolls the rolled piece; S304, the pusher opens the first set opening; S305, the rolled piece When the tail is about to enter the BD rolling mill, the pusher clamps the rolled piece again; S306, after the tail of the rolled piece passes through the BD rolling mill, the pusher opens. In the hot-rolled production method of the H-shaped steel of the present invention, the head and tail of the rolled piece are significantly weakened, and the degree of swinging from side to side is significantly weakened, which can reduce the center deviation of the hot-rolled H-shaped steel head and tail, effectively reduce the amount of head and tail cutting, and improve the hot-rolled H-beam. Yield rate of section steel.
Description
technical field [0001] The invention belongs to the technical field of production of hot-rolled H-shaped steel, in particular, the invention relates to a production method of hot-rolled H-shaped steel. Background technique [0002] In the production of hot-rolled H-shaped steel, the following phenomenon usually exists, that is, the central deviation of the middle part along the length direction of the entire H-shaped steel is extremely small, and the central deviation is relatively large near the head and tail of the H-shaped steel. When the center deviation of the head and tail of the H-beam does not meet the requirements of the customer or the standard, it is necessary to increase the head and tail trimming amount, which will greatly reduce the yield. [0003] The main reason for the large center deviation of the head and tail of the hot-rolled H-beam is that the head and tail are in an unstable state when the rolled piece is bitten from the entrance side of the rolling mi...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): B21B1/088B21B39/16
CPCB21B1/088B21B39/16B21B2201/06
Inventor 汪杰圣立芜吴保桥张文满吴湄庄
Owner MAANSHAN IRON & STEEL CO LTD