CN203437411U - F-steel roller two-hole pattern - Google Patents

F-steel roller two-hole pattern Download PDF

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Publication number
CN203437411U
CN203437411U CN201320434491.1U CN201320434491U CN203437411U CN 203437411 U CN203437411 U CN 203437411U CN 201320434491 U CN201320434491 U CN 201320434491U CN 203437411 U CN203437411 U CN 203437411U
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China
Prior art keywords
diapsid
steel
roll
pass
join domain
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Withdrawn - After Issue
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CN201320434491.1U
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Chinese (zh)
Inventor
张戈
李雪涛
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Laiwu Iron and Steel Group Co Ltd
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Laiwu Iron and Steel Group Co Ltd
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Abstract

The utility model discloses an F-steel roller two-hole pattern. The two-hole pattern is formed by assembling an upper roller and a lower roller of a rolling machine and is a pair of F-steel hole patterns which are symmetric about an axis AA and communicated with each other through a connecting area. The axis AA is vertical to a horizontal central line BB of the two-hole pattern, and the sides, corresponding to a wing plate of rolled F-shaped steel, of the pair of F-shaped steel hole patterns are connected together through the connecting area. The F-steel roller two-hole pattern is adopted to roll, so that the rolling speed, i.e. the steel yield per hour, can be improved, the production cost is reduced, the rolling stability can be improved, and the rate of finished products is increased.

Description

F shaped roll diapsid
Technical field
The utility model relates to deformed steel rolling field, is specifically related to a kind of F shaped roll diapsid, is a kind of brand-new pass exploitation, and it improves deformed steel hour output of steel and rolling stability, reduces production costs.
Background technology
F shaped steel is a kind of in deformed steel, can be used for magnetic suspension train rail.In recent years along with urban core region, intercity between the traffic requirements of special-purpose low cost, high operation ability, middle low speed magnetic suspension train project is progressively promoted, and with fast speed development, such as Kunming International Horticultural Expo Garden industrial siding (2 kilometers); Forest Soil on Badaling Mountain in Beijing tourism industrial siding (80 kilometers); Guangzhou-Foshan (70 kilometers); The existing substantive plan in Guangzhou-Dongguan (50 kilometers); The existing relevant purpose plan in other more than 60 cities; 1.9 kilometers of test wires of Tangshan carshop put into operation on July 1st, 2006, and put into operation December; 12.9 kilometers, Guangdong Zhong Shan line has completed engineering design, is carrying out detail design.In addition, 70 kilometers of lines of Ma Laixiya with September 6 in 2006 Yu Bei Kongcifu company sign an agreement.Also all there is substantive plan in the Singapore in Southeast Asia.To have the construction of nearly hundred middle low speed magnetic floating lines future, Chinese city, suburban area have more than 10,000 kilometer of market, and the international market that approximately has 8 to 120,000 kilometers, so the demand of F shaped steel is very large, market prospects are wide.
In current domestic steel production enterprise, the production of F shaped steel mainly be take Laigang as main, the large H type steel production line capital equipment of Laigang by the design of German SMS company, manufacture, the H shaped steel of largest production 900 * 300 specifications, also can produce the deformed steels such as " F ", 25, the large angle steel of 22 specification simultaneously.This production line comprises reversible blooming mill and universal rolling mill group (order of placement is UR, E, UF), the roll pass of producing the universal rolling mill of F shaped steel is single F pass, low and the single F pass of F shaped steel hour output of steel causes rolling stability poor, yield rate is low, be only 70%, cannot meet the wilderness demand in market, therefore need to improve production line to improve hour output of steel, and improve rolling stability, increase yield rate.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art, and a kind of F shaped roll diapsid is provided.This pass can improve the i.e. hour output of steel of mill speed, reduces production costs.Adopt diapsid of the present utility model to be rolled and can improve rolling stability, improve yield rate.
To achieve these goals, the utility model has adopted following technical scheme:
A kind of F shaped roll diapsid, top roll and lower roll by milling train are put together, this diapsid is a pair of along axis AA F Pass symmetrical and that connect through join domain, described axis AA is vertical with the horizontal center line BB of described diapsid, and described join domain links together a side corresponding with the wing plate of the F shaped steel of rolling in described a pair of F Pass.
Because the roll pass of existing universal rolling mill is single F Pass, F shaped steel hour output of steel is low, so the utility model is on the basis of existing equipment, by reference existing " F " Pass parameter, adopt symmetrical turning, on new roll, to go out along axis AA symmetry be a pair of F Pass symmetrical and that connect through join domain in turning.Within such hour, output of steel can be doubled.
In described F shaped roll diapsid, as a kind of preferred embodiment, the length of described join domain is 180-220mm, is highly 18-22mm, is convenient to like this secondary machine.More preferably, the length of described join domain is 200mm, is highly 20mm.
In described F shaped roll diapsid, described join domain can in the vertical direction any position a pair of F Pass is communicated with, that is to say, described join domain can be positioned at described diapsid horizontal center line BB top, below or cover the horizontal center line BB of described diapsid, as a kind of preferred embodiment, the horizontal center line BB of described diapsid passes through described join domain central point, and intersects in described central spot and described axis AA.That is to say, described join domain covers the horizontal center line BB of described diapsid just.
For reversible blooming mill and the universal mill with above-mentioned roll pass are adapted, the roll of reversible blooming mill also needs symmetrical turning pass, according to existing size symmetrical pass of turning on new roll, to roll out the required rolled piece of universal mill group.
Because the milling train using has the roll that above-mentioned pass is symmetrical pass, compare with single-orifice type rolling, overcome because of in deformed steel rolling, stress is asymmetric, the asymmetric rolled piece distortion causing of shape, the problem of size distortion, the rolled piece causing because roll-force is inhomogeneous is head and nose phenomenon partially, overcome the unsettled problem of transporting that rolled piece causes because profile is asymmetric when roller transport, diapsid rolling simultaneously can improve rolled piece at the rolling stability in tandem mill region simultaneously.
The utility model compared with prior art, has following beneficial effect:
The utility model is according to section steel works large-scale production line rolling mill design ability, under existing equipment condition, design diapsid (being symmetrical pass), adopted symmetrical pass to be rolled, improved mill speed, original production line hour output of steel is 50-160t, and adopt hour output of steel after roll pass of the present utility model, be 290-300t, and rolling stability is improved, yield rate has increased by 15%, make the rolling of " F " shaped steel accomplish the mass production of maximum-norm, reduced production cost.
Accompanying drawing explanation
Fig. 1 is the symmetrical pass mill product cross section view that adopts the utility model symmetrical pass roll to be rolled;
Fig. 2 is the schematic diagram of the symmetry rolling pass (being horizontal diapsid) that is assembled into of the utility model top and bottom rolls.
Wherein, description of reference numerals is as follows: 1-wing plate, 2-web, the straight leg of 3-, 4-battered leg
The specific embodiment
Below by the specific embodiment, content of the present utility model and technical characterictic are elaborated, but the utility model is not limited to this.
Referring to Fig. 2, a kind of F shaped roll diapsid, by the top roll of universal rolling mill and lower roll, be put together and by the top roll of universal rolling mill and the groove of lower roll, formed, this pass is a pair of along axis AA F Pass symmetrical and that be communicated with through join domain, the horizontal center line BB of described axis AA and described diapsid is vertical and intersect at the central point of described join domain, that is to say, the horizontal center line BB of described diapsid is by described join domain central point (part that is the join domain horizontal center line BB both sides that are positioned at described diapsid is symmetrical up and down along the horizontal center line BB of described diapsid) crossing with described axis AA in described central spot, it is not only beneficial to secondary operations, and be beneficial to rolled piece and evenly extend.Described join domain links together a side (being F shaped steel tail end) corresponding with the free end of the wing plate of the F shaped steel of rolling in described a pair of F Pass, adopt join domain by the part corresponding with F shaped steel wing plate free end be connected can better controlled rolling process in the center of gravity of rolled piece, thereby avoid inclined to one side and nose of rolled piece.Single F Pass is existing F Pass, and the F shaped steel that it rolls out has web 2, the wing plate 1 being stretched out by web 2 levels, the straight leg 3 that is positioned at web 2 both sides and battered leg 4, referring to Fig. 1; F shaped roll diapsid of the present utility model is that above-mentioned single F Pass is connected by join domain.This join domain is the connected design of " F " steel tail end, and described in it, the horizontal center line BB of diapsid equates apart from the vertical range at the upper and lower both ends of pass, is 470mm left and right.
For the ease of secondary operations, the length that described join domain length is horizontal direction is preferably 180-220mm, and height h is that the height of vertical direction is 18-22mm.More preferably length is 200mm, and height h is 20mm.The roll with the utility model pass is to adopt mode turning on new roll of symmetrical turning to go out a pair of symmetrical pass.
Illustrate milling method of the present utility model below.
Embodiment
The top and bottom rolls of universal roughing mill and universal finishing mill all has symmetrical pass of the present utility model;
For reversible blooming mill and the universal mill with above-mentioned symmetrical pass are adapted, the roll pass on reversible blooming mill is also symmetrical.
Milling method is as follows:
Step 1, utilizes two-roller reversible blooming mill (BD) to be rolled blank, to roll out, enters the required rolled piece of universal mill group.
Step 2, utilize successively UR/E/UF milling train described rolled piece to be rolled to a pair of F shaped steel (being symmetrical pass mill product) that obtains connecting as one, referring to Fig. 1, it comprises a pair of symmetrical F shaped steel and the secondary operations region that connects this pair of F shaped steel.
Step 3, carries out sawing, planing and turning processing to the middle join domain of a pair of F shaped steel connecting as one, a pair of F shaped steel connecting as one is separated and obtain finished product F shaped steel.
Comparative example
The finished product F steel section size of rolling is identical with embodiment.
The top and bottom rolls pass of universal roughing mill and universal finishing mill is single F Pass, and the roll pass of reversible blooming mill adapts with it, and milling method is:
Step 1, utilizes reversible blooming mill to be rolled blank, to roll out, enters the required rolled piece of universal mill group.
Step 2, utilizes UR/E/UF milling train to be rolled described rolled piece successively, obtains finished product F shaped steel.
The milling method of this comparative example hour output of steel is 120t left and right, and hour output of steel of the milling method of embodiment is 300t left and right, and rolling stability is improved, the milling method of the utility model embodiment is compared with the milling method of comparative example, and yield rate has increased by 15%.
The purposes that should be appreciated that these embodiment is only for the utility model is described but not be intended to limit protection domain of the present utility model.In addition; also should understand; after having read technology contents of the present utility model, those skilled in the art can make various changes, modification and/or modification to the utility model, within these all equivalent form of values fall within the protection domain that the application's appended claims limits equally.

Claims (4)

1. a F shaped roll diapsid, it is characterized in that, top roll and lower roll by milling train are put together, this diapsid is a pair of along axis AA F Pass symmetrical and that be communicated with through join domain, described axis AA is vertical with the horizontal center line BB of described diapsid, and described join domain links together a side corresponding with the free end of the wing plate of the F shaped steel of rolling in described a pair of F Pass.
2. F shaped roll diapsid according to claim 1, is characterized in that, the length of described join domain is 180-220mm, is highly 18-22mm.
3. F shaped roll diapsid according to claim 2, is characterized in that, the length of described join domain is 200mm, is highly 20mm.
4. F shaped roll diapsid according to claim 1, is characterized in that, the horizontal center line BB of described diapsid passes through described join domain central point, and intersects in described central spot and described axis AA.
CN201320434491.1U 2013-07-19 2013-07-19 F-steel roller two-hole pattern Withdrawn - After Issue CN203437411U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320434491.1U CN203437411U (en) 2013-07-19 2013-07-19 F-steel roller two-hole pattern

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103357663A (en) * 2013-07-19 2013-10-23 莱芜钢铁集团有限公司 F-shaped steel mill roll double-hole type and rolling method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103357663A (en) * 2013-07-19 2013-10-23 莱芜钢铁集团有限公司 F-shaped steel mill roll double-hole type and rolling method
CN103357663B (en) * 2013-07-19 2016-04-20 莱芜钢铁集团有限公司 F shaped roll diapsid and milling method

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GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20140219

Effective date of abandoning: 20160420

C25 Abandonment of patent right or utility model to avoid double patenting