Slit-rolling groove

A technology of split rolling and split pass, which is applied in the direction of metal rolling, metal rolling, rolling mill control devices, etc., and can solve the problems of affecting the surface quality of the rolled material, affecting the quality of the rolled piece, and the easy torsion of the rolled piece. Achieve the effects of preventing uneven cutting, stable production process control, and stable finished product size

Inactive Publication Date: 2015-11-25
SICHUAN DESHENG GRP VANADIUM & TITANIUM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved and the technical task proposed by the present invention are to improve the existing technology and provide a split rolling pass, which solves the irregular incision of the traditional split pass system in the current technology, and is easy to form folds after rolling. , affect the surface quality of the rolled material, the rolled piece is easy to reverse, and affect the quality of the rolled piece

Method used

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Embodiment Construction

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0018] The split rolling pass disclosed in the embodiment of the invention eliminates midline folding, improves the surface quality of finished products, and stabilizes the size of finished products.

[0019] Such as Figure 1 to Figure 4 Shown, a kind of slit rolling pass, including pre-slit pass K4, slit pass K3, oval pass K2 and finished pass K1, the total width L of the pre-slit pass K4 is 63.4 ~ 64mm to ensure the fullness of the rolled piece in the cutt...

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Abstract

The invention discloses a slit-rolling groove. The slit-rolling groove comprises a pre-slitting groove K4, a slitting groove K3, an oval groove K2 and a final groove K1. The slit-rolling groove is characterized in that the height of the tank bottom of the pre-slitting groove K4 is 17.64mm, the roller wedge angle of the pre-slitting groove K4 is 88.5-89 degrees, and the circular arc radius of the wedge top of the pre-slitting groove K4 is 1.45-1.5mm; the height of the tank bottom of the slitting groove K3 is 14.5mm, the wedge angle of the slitting groove K3 is 50.5-51 degrees, and the circular arc radius of the wedge top of the slitting groove K3 is 0.6-0.9mm; the height of the tank bottom of the oval groove K2 is 8.5mm, and the height of the tank bottom of the final groove K1 is 11.2mm. Through the adoption of the slit-rolling groove disclosed by the invention, the good quality of products is guaranteed, the operation rate of a rolling machine is improved, the material consumption is reduced, the phenomenon of uneven slitting is avoided, midline folding is eliminated, the surface quality of finished products is improved, the size of finished products is stabilized, and the production efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of multi-line split rolling, in particular to a split rolling pass. Background technique [0002] Slit rolling means that during the rolling process, the steel billet is rolled into two or more parallel parts with the same cross-sectional shape through pass design, and then the billet is longitudinally cut into two or more cross-sections by the cutting equipment. The same shape of the rolled piece, and continue rolling until the finished product is obtained. There are burrs on the part of the slitting strip, and the incision is irregular. It is easy to form folds after rolling, which affects the surface quality of the rolled material. When the shearing method is used to separate the rolled pieces in parallel, the rolled pieces are easy to twist, which affects the quality of the rolled piece. During the slitting rolling process, due to the influence of pass system parameters, rolling groove wear, rolling mil...

Claims

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Application Information

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IPC IPC(8): B21B27/02B21B37/00B21B39/14
Inventor 王建均彭方明罗清明林世文刘春霞罗新生
Owner SICHUAN DESHENG GRP VANADIUM & TITANIUM CO LTD
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