CN1035449A

CN1035449A - A kind of method of rolling steel section with periodical floral border

Info

Publication number: CN1035449A
Application number: CN 89101080
Authority: CN
Inventors: 敖维驷
Original assignee: North China University of Technology
Current assignee: North China University of Technology
Priority date: 1989-03-14
Filing date: 1989-03-14
Publication date: 1989-09-13
Also published as: CN1008696B

Abstract

The present invention relates to a kind of method of rolling steel section with periodical floral border, on the horizontal roller milling train, be rolled into after the I shape section with rolling I shape section pass schedule, use horizontal roller immediately two last leg tops of I shape section, be rolled into simultaneously the cycle lace synchronously once, upset of warp-wise two outsides and the smooth cycle lace shaped steel that is processed to form.The present invention has simplified the method for production cycle lace shaped steel greatly.Equipment investment is few, the productivity ratio height, and good product quality, production cost is low, is easy to form production line, and the cycle lace type that solves coal in China battle line urgent need is significant.

Description

A kind of method of rolling steel section with periodical floral border

The present invention relates to a kind of method of rolling steel section with periodical floral border.

The method of existing rolling cycle lace, for example the method for rolling cycle lace π shaped steel is that square or rectangular section blank is rolled into π type section rolled piece, and sending into down a time then, to carry out lace rolling, through smooth processing, roll into cycle lace π type shaped steel at last.The method of rolling cycle lace, the rolled piece that makes that has is the horizontal mill milling of erectility, this milling method, the rolled piece upset that must very longly be the level of state erects for 90 ° and sends into milling train (Fig. 1), and therefore, labour intensity is big, produce dangerously, be difficult for to form production line; In addition, rolled piece is easy to generate bending and topples over phenomenon when erectility is rolling, can not guarantee machining accuracy (Fig. 3,4).Another kind method is when rolled piece is the level of state, it is rolling to carry out the cycle lace with the isoplanar universal mill, as CN87203808 patented technology (Fig. 2), though it has had very big improvement to the problem that said method exists, but, it will increase an isoplanar universal mill and seals in the whole rolling machine row, invests corresponding increase.Comprehensive said method, problem be to make lace rolling with two of π type section moulding operation rigid separation.

Problem that exists at said method and the reason that has problems have proposed a kind of method of new rolling steel section with periodical floral border.

The objective of the invention is shortcoming and deficiency, and a kind of productivity ratio height is provided in order to overcome above-mentioned prior art, good product quality, cost is low, can form the method for the new rolling steel section with periodical floral border of production line.

To achieve these goals, the present invention adopts and makes rolled piece be in the light water flat roll mill of flat condition forever, pass schedule with rolling I shape section, after being rolled into the I shape section, use horizontal roller immediately two tops of going up leg of I shape section, be rolled into simultaneously the cycle lace synchronously once, in following a time is rolling, the last leg that two in I shape section has been rolled into the cycle lace outwards overturns 90 °, formation cycle lace sectional shape two flanks, after smooth processing, keep and meet the requirements of size.

Owing to adopted above-mentioned technical scheme, just simplified the method for production cycle lace shaped steel greatly, equipment investment is few, the productivity ratio height, guaranteed product quality, production cost reduces greatly, easily forms production line simultaneously, to popularizing production cycle lace shaped steel, particularly solving the cycle lace π type shaped steel that the coal in China battle line is badly in need of is significant, this method applicability is strong, both has been applicable to the open-train mill system, also can be used for the tandem mill production system.

Description of drawings

Accompanying drawing 1 is to adopt horizontal mill to make rolled piece be the schematic diagram of erectility rolling cycle during lace.

Accompanying drawing 2 is for adopting the method that seals in the isoplanar universal mill rolling cycle lace in the open-train mill.

The shank that accompanying drawing 3 and accompanying drawing 4 takes place for make rolled piece be the erectility rolling cycle with horizontal mill rolled piece takes place during lace addition bend with when entering next planishing pass is scraped and is cut phenomenon.Among the accompanying drawing 1-4,1 is last horizontal roll, and 2 is rolled piece, and 3 are following horizontal roll, and 4 and 7 is left and right two edger rolls in the universal mill, and 5 and 6 is upper and lower two horizontal guide rollers in the universal mill, and 8 is entrance guide plate.

Accompanying drawing 5 is for adopting the technology pass figure of horizontal roller mill milling cycle lace shaped steel.Wherein 5-1 is the technology pass of first passage, 5-2 is the technology pass of second passage, 5-3 is the technology pass of the 3rd passage, 5-4 is the 4th time a technology pass, 5-5 is the technology pass of the 5th passage, 5-6 is the technology pass of the 6th passage, and 5-7 is the technology pass of the 7th passage, and 5-8 is the technology pass of the 8th passage.

Below in conjunction with accompanying drawing the present invention is described in detail as follows:

At first the technology pass by first passage to the, five passages shown in the technology pass figure shown in the present rolls out the I shape section, and then equal rolling last horizontal roller two tops of going up leg of I shape section by the technology pass water shown in the 6th passage, be rolled into once synchronously simultaneously and have the lace that the cycle changes, technology pass by the 7th passage outwards overturns the last leg that two in I shape section has been rolled into the cycle lace 90 ° then, the formation cycle lace shaped steel both sides wing carries out smooth processing through the technology pass of the 8th passage at last and reaches corresponding dimensional requirement.

Claims

A kind of method of rolling steel section with periodical floral border, it is characterized in that adopting the light water flat roll mill that makes rolled piece be in flat condition forever, pass schedule with rolling I shape section, after being rolled into the I shape section, use horizontal roller immediately two tops of going up leg of I shape section, be rolled into simultaneously the cycle lace synchronously once, in following a time is rolling, the last leg that two in I shape section has been rolled into the cycle lace outwards overturns 90 °, formation cycle lace sectional shape two flanks, after smooth processing, keep and meet the requirements of size.