Design method of low energy consumption guide plate for two-roll skew rolling piercer
A cross-rolling piercing and design method technology, applied in metal rolling, guiding/positioning/alignment devices, etc., can solve the problems of high energy consumption in piercing and rolling, achieve considerable process costs, increase service life, and reduce rolling load Effect
Inactive Publication Date: 2020-01-14
UNIV OF SCI & TECH BEIJING
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] In order to solve the problem of high energy consumption of piercing and rolling caused by the existing design of the guide plate of the two-roll cross-rolling piercer, the invention provides a design method of the guide plate to realize rolling with low energy consumption
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
[0019] Example: In a factory, a barrel-shaped roll cross-rolling piercing unit is used to actually produce a 210*12mm capillary tube with a diameter of 180mm. The nominal diameter of the roll is 720mm, the length of the roll is 590mm, the entrance angle is 3 degrees, the exit angle is 3.5 degrees, the feed angle is 6 degrees, and the head diameter is 174mm. The guide plate is designed according to the present invention. The guide plate arc surface center eccentricity Le value is 17mm, and the guide plate entrance The side cone angle αA angle is 3 degrees, the outlet side cone angle αB angle is 4 degrees, the total length of the guide plate is 445mm, and the value of the arc surface radius Rcc at the throat of the guide plate is 108mm.
[0020] Under the condition that the deformation specifications, roll and plug specifications, and production conditions are unchanged, only the improved guide plate is replaced for production practice. Taking the motor current meter data during st...
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 provides a design method of a low energy consumption guide plate of a two-high rotary piercer. The design method is characterized in that, on the working surface of frictional contact between a guide plate and a steel pipe, and taking the projection line of a rolling centerline on the guide plate surface as a boundary, the surface of the side, that a pipe body is rotated to enter, ofthe guide plate is an arc surface, and the surface of the side, that the pipe body is rotated to leave, of the guide plate is a plane. The position where the circle center of the arc surface of the guide plate is located has an eccentric distance relative to the rolling centerline, and the eccentric distance Le is (0-0.2)*diameter value of a pipe blank. According to the design method, the rollingload during rolling of the two-high rotary piercer can be reduced effectively, and the service life of the guide plate is prolonged; the considerable economic benefits are produced from the process cost, and meanwhile the conditions are created for further mining of equipment potential and development of high-grade steel products which are hard to deform.
Description
Technical field [0001] The invention relates to a design method for a guide plate of a two-roll cross-rolling piercing machine. In particular, it relates to a guide plate design method for a two-roll cross-rolling piercing machine to realize low-energy-consumption rolling. Background technique [0002] In the production of seamless steel pipes, the piercer is one of the important main deformation equipment. In the rolling process of the piercing machine, the solid tube blank is rolled by a pass formed by the roller, the guide plate and the top head to obtain a hollow capillary tube. In the pass structure of the piercer, the roller is the main driving external deformation tool, the head is the internal deformation tool that rotates with the deformed metal, and the guide plate is the fixed external deformation tool. The guide plate plays a role of guiding the deformed steel pipe, limiting the lateral deformation of the capillary tube and closing the pass in the pass rolling, and ...
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): B21B39/16B21B19/04
CPCB21B19/04B21B39/165
Inventor 魏朝辉路浩煜吴春京
Owner UNIV OF SCI & TECH BEIJING