CN103978030A - Production process device for rebar with ribs at three sides - Google Patents
Production process device for rebar with ribs at three sides Download PDFInfo
- Publication number
- CN103978030A CN103978030A CN201410210872.0A CN201410210872A CN103978030A CN 103978030 A CN103978030 A CN 103978030A CN 201410210872 A CN201410210872 A CN 201410210872A CN 103978030 A CN103978030 A CN 103978030A
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- mill
- shearing equipment
- unit
- temperature
- cooling device
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/16—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
Abstract
The invention discloses a production process device for a rebar with ribs at three sides. The device comprises a preprocessing procedure, a rough mill unit, first shearing equipment, a middle mill unit, second shearing equipment, a finishing mill unit, third shearing equipment, a diameter reducing and fixing unit, fourth shearing equipment and a postprocessing procedure which are arranged in sequence; the rough mill unit, the middle mill unit, the finishing mill unit and the diameter reducing and fixing unit all adopt a three-roll mill; crescent-shaped rib grooves matched with the shapes of rib parts at the surface of the rebar with the ribs at three surfaces are marked at the last three-roll mill of the finishing mill unit. The high strength three-roll mills are arranged in the full production line, the rolling capacity is large, large compression in one single path can be realized and guarantee is provided for producing a fine grain rebar; in addition, temperature control water tanks are arranged at multiple positions of the production line, so a rolled piece is subjected to online temperature control and cooling by mediums such as air and water, and the ordered production of the threaded rebar with high strength level can be realized by matching the reasonable temperature window of the rolled piece and the large compression process of the mills.
Description
Technical field
The invention belongs to Ferrous Metallurgy field, be specifically related to the technology arrangement of a kind of three side spiral with ribbing.
Background technology
Adopting duo mill to roll out both sides spiral with ribbing is the known technology of screw-thread steel Rolling Production.
Along with national progress and development, large-scale basis facility and Urbanization Construction all be unable to do without spiral for building.Within 2013, spiral output surpasses 200,000,000 tons, accounts for 20% of China's steel production capacity.Authorities of country also put into effect relevant policies successively, accelerate to eliminate 335MPa grade reinforcing steel in architectural engineering, preferentially use 400MPa grade reinforcing steel, actively promote 500MPa grade reinforcing steel.
When progressively improving spiral strength grade, how allowing reinforcing bar and concrete merge is completely also the problem that technical staff must consider.First, reinforcing bar and concrete have approximately uniform thermal coefficient of expansion, and under uniform temp, between reinforcing bar and concrete, the changing of the relative positions is very little; Secondly, during concrete hardening, cement and rebar surface have good bonding, and any stress can be transmitted effectively between the two; Conventionally the surface of reinforcing bar is also processed to coarse, spaced corrugated rib (being called screw-thread steel) and further improves the bonding between concrete and rebar.
Yet existing spiral is that both sides are with ribbing from section, and another two sides does not have with ribbing.Building when being subject to multidirectional external force, reinforcing bar do not have face with ribbing and concrete bondability not tight, stressed easily come off afterwards, adds that existing spiral strength grade is lower, and then makes building produce potential safety hazard.
Summary of the invention
In view of this, the production technology that the object of this invention is to provide a kind of three side spiral with ribbing is arranged, energy mass production three sides screw-thread steel with ribbing, and the Novel screw-thread steel that the present invention produces is when surface quality, cross dimensions, strength grade promote greatly, can effectively eliminate the potential safety hazard that reinforcing bar that multi-direction external force bring and concrete come off by himself style characteristic again.
The object of the invention is to be achieved through the following technical solutions:
The production technology of a kind of three side spiral with ribbing is arranged, comprise the pretreatment procedure, roughing unit, the first shearing equipment, intermediate mill, the second shearing equipment, mm finishing mill unit, the 3rd shearing equipment, reducing sizing mill group, the 4th shearing equipment and the postprocessing working procedures that set gradually, described roughing unit, intermediate mill, mm finishing mill unit and reducing sizing mill group all adopt three-high mill, are carved with the crescent rib groove matching with three side Ribbed Bar surface flank shapes on the roll surface of described last three-high mill of mm finishing mill unit;
Further, between described pretreatment procedure and roughing unit, be provided with the first temperature-controlled cooling device, between described roughing unit and the first shearing equipment, be provided with the second temperature-controlled cooling device, between described intermediate mill and the second shearing equipment, be provided with the 3rd temperature-controlled cooling device, between described mm finishing mill unit and the 3rd shearing equipment, be provided with the 4th temperature-controlled cooling device, between described reducing sizing mill group and the 4th shearing equipment, be provided with the 5th temperature-controlled cooling device;
Further, the described first to the 5th temperature-controlled cooling device all adopts control cold water storage cistern;
Further, every time lengthening coefficient of described three-high mill is 1.0～1.6;
Further: the lengthening coefficient of described last three-high mill is 1.0～1.3.
The invention has the beneficial effects as follows: the production method of technology arrangement of the present invention arranges high strength three-high mill by all fronts, and rolling power is large, can realize single pass and depress greatly, for controlled rolling and controlled cooling, produce fine grain reinforcing bar and provide safeguard; In addition, many places temperature controlled water tank is set completely, by media such as water, gas, rolled piece is carried out to online temperature control cooling, reasonably rolled piece temperature window coordinates the large soft reduction process of milling train in addition, therefore can realize the orderly production of high strength grade Novel threaded reinforcing bar.
Other advantages of the present invention, target and feature will be set forth to a certain extent in the following description, and to a certain extent, based on will be apparent to those skilled in the art to investigating below, or can be instructed from the practice of the present invention.Target of the present invention and other advantages can be realized and be obtained by description below.
Accompanying drawing explanation
In order to make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, the present invention is described in further detail, wherein:
Fig. 1 is three side Ribbed Bar sectional schematic diagrams;
Fig. 2 is the production technology layout drawing of preferred embodiment of the present invention.
The specific embodiment
Hereinafter with reference to accompanying drawing, the preferred embodiments of the present invention are described in detail.Should be appreciated that preferred embodiment is only for the present invention is described, rather than in order to limit the scope of the invention.
As shown in the figure, the production technology of a kind of three side spiral with ribbing is arranged, comprise the pretreatment procedure 1, roughing unit 3, the first shearing equipment 5, intermediate mill 6, the second shearing equipment 8, mm finishing mill unit 9, the 3rd shearing equipment 11, reducing sizing mill group 12, the 4th shearing equipment 14 and the postprocessing working procedures 15 that set gradually, described roughing unit, intermediate mill, mm finishing mill unit and reducing sizing mill group all adopt high strength three-high mill, are carved with the crescent rib groove matching with three side Ribbed Bar surface flank shapes on the roll surface of described last three-high mill of mm finishing mill unit.
In the present embodiment, pretreatment procedure comprises that continuous blank-discharging-blank scale-blank rolls off the production line and stacks heat again-heating furnace of warehouse-in-blank heating come out of the stove-high-pressure water descaling of blank afterwards; Postprocessing working procedures comprise cold bed cooling-cold shears (saw) equipment of cutting cuts the stacking of rolling off the production line-put in storage of scale-finished product bar inspection collection-bundling.
In the present embodiment, in order to ensure workpiece measurement precision and circular cross section precision, the roll of adjacent milling train is respectively the equilateral triangle of equilateral triangle and handstand and arranges.
In the present embodiment, between described pretreatment procedure and roughing unit, be provided with the first temperature-controlled cooling device 2, between described roughing unit and the first shearing equipment, be provided with the second temperature-controlled cooling device 4, between described intermediate mill and the second shearing equipment, be provided with the 3rd temperature-controlled cooling device 7, between described mm finishing mill unit and the 3rd shearing equipment, be provided with the 4th temperature-controlled cooling device 10, between described reducing sizing mill group and the 4th shearing equipment, be provided with the 5th temperature-controlled cooling device 13; The described first to the 5th temperature-controlled cooling device all adopts control cold water storage cistern; Every time lengthening coefficient of described three-high mill is 1.0～1.6; For guaranteeing the dimensional accuracy of final products, the lengthening coefficient of described last three-high mill is 1.0～1.3.
The rib of screw-thread steel three sides that the present embodiment is produced is 120 ° at circumferencial direction and is distributed on reinforcing bar outer surface surrounding, compares with the product that traditional duo mill is produced, and mill speed is faster, production capacity is higher, and cross dimensions precision is higher, and performance is more even, strength grade is higher, more than can improving 50mPa; Higher with concrete conglutination degree, compare bonding strength with traditional two side spiral with ribbing and improve more than 30%, and while bearing multi-direction external force reinforcing bar and concrete changing of the relative positions amount to compare traditional reinforcing bar less, make building safer.From roll forming angle, three roller finishing mills are to spiral rolling deformation with ribbing and form final crescent reinforcing bar flank, three rolls are rolled distortion to three directions of rolled piece section simultaneously, molding effect is better, deformability is stronger, dimensional accuracy is higher, is also applicable to producing fine grain spiral from cooling controlling and rolling controlling process angle.
The novel three side with ribbing spiral of the production method of the present embodiment in not only can production the present invention, can also be for the production of high quality round bar.Equally, this production method is also applicable to produce the similar high-speed rod Ribbed Bar of section and coil rod.
The production feature of the present embodiment is: (1) arranges high strength three-high mill completely, and rolling power is large, can realize single pass and depress greatly, produces fine grain reinforcing bar provide safeguard for controlled rolling and controlled cooling; (2) many places temperature controlled water tank is set completely, by media such as water, gas, rolled piece is carried out to online temperature control cooling, reasonably rolled piece temperature window coordinates the large soft reduction process of milling train in addition, realizes the orderly production of high strength grade Novel threaded reinforcing bar; (3) all fronts production technology and flexible arrangement, can suitably increase and decrease milling train unit according to actual process needs, makes investment of production cost optimization, and productivity effect maximizes.
Finally explanation is, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement technical scheme of the present invention, and not departing from aim and the scope of the technical program, it all should be encompassed in the middle of claim scope of the present invention.
Claims (5)
1. the production technology of a side spiral with ribbing is arranged, comprise the pretreatment procedure, roughing unit, the first shearing equipment, intermediate mill, the second shearing equipment, mm finishing mill unit, the 3rd shearing equipment, reducing sizing mill group, the 4th shearing equipment and the postprocessing working procedures that set gradually, it is characterized in that: described roughing unit, intermediate mill, mm finishing mill unit and reducing sizing mill group all adopt three-high mill, on the roll surface of described last three-high mill of mm finishing mill unit, be carved with the crescent rib groove matching with three side Ribbed Bar surface flank shapes.
2. the production technology of three side according to claim 1 spiral with ribbing is arranged, it is characterized in that: between described pretreatment procedure and roughing unit, be provided with the first temperature-controlled cooling device, between described roughing unit and the first shearing equipment, be provided with the second temperature-controlled cooling device, between described intermediate mill and the second shearing equipment, be provided with the 3rd temperature-controlled cooling device, between described mm finishing mill unit and the 3rd shearing equipment, be provided with the 4th temperature-controlled cooling device, between described reducing sizing mill group and the 4th shearing equipment, be provided with the 5th temperature-controlled cooling device.
3. the production technology of three side according to claim 2 spiral with ribbing is arranged, it is characterized in that: the described first to the 5th temperature-controlled cooling device all adopts control cold water storage cistern.
4. the production technology of three side according to claim 1 spiral with ribbing is arranged, it is characterized in that: every time lengthening coefficient of described three-high mill is 1.0～1.6.
5. the production technology of three side according to claim 1 spiral with ribbing is arranged, it is characterized in that: the lengthening coefficient of described last three-high mill is 1.0～1.3.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410210872.0A CN103978030B (en) | 2014-05-19 | 2014-05-19 | The production process equipment of a kind of three side spiral with ribbing |
| PCT/CN2014/092052 WO2015176515A1 (en) | 2014-05-19 | 2014-11-24 | Production technology for screw-thread steel bar with three ribbed sides |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410210872.0A CN103978030B (en) | 2014-05-19 | 2014-05-19 | The production process equipment of a kind of three side spiral with ribbing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103978030A true CN103978030A (en) | 2014-08-13 |
| CN103978030B CN103978030B (en) | 2016-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410210872.0A Active CN103978030B (en) | 2014-05-19 | 2014-05-19 | The production process equipment of a kind of three side spiral with ribbing |
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| Country | Link |
|---|---|
| CN (1) | CN103978030B (en) |
| WO (1) | WO2015176515A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015176515A1 (en) * | 2014-05-19 | 2015-11-26 | 中冶赛迪工程技术股份有限公司 | Production technology for screw-thread steel bar with three ribbed sides |
| CN105170646A (en) * | 2015-10-26 | 2015-12-23 | 中冶赛迪工程技术股份有限公司 | Economical bar sizing production line and method |
| CN109909298A (en) * | 2019-03-21 | 2019-06-21 | 中冶赛迪工程技术股份有限公司 | The production method of excellent steel and screw-thread steel production line of bar and excellent steel and screw-thread steel |
| CN112845579A (en) * | 2021-01-07 | 2021-05-28 | 赵洋梵 | Finish rolling process for manufacturing deformed steel bar |
| CN113560336A (en) * | 2021-07-26 | 2021-10-29 | 重庆钢铁研究所有限公司 | Preparation method of 17-4PH precipitation hardening stainless steel hexagonal steel profile |
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| CN114645193B (en) * | 2021-05-28 | 2022-09-23 | 广西柳州钢铁集团有限公司 | HRB600E twisted steel bar produced by high-speed bar |
| CN114082781B (en) * | 2021-11-26 | 2023-11-21 | 宁夏建龙特钢有限公司 | Deformed steel bar finish rolling machining machine and finish rolling machining process |
| CN114472540B (en) * | 2022-01-25 | 2023-11-03 | 首钢长治钢铁有限公司 | Control method for general size uniformity of finished rod and wire |
| CN114888080B (en) * | 2022-05-25 | 2024-02-09 | 福建三宝钢铁有限公司 | Three-splitting rolling process of phi 18 deformed bar |
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| CN1042852A (en) * | 1988-11-22 | 1990-06-13 | 北京科技大学 | Manufacturing process of cold-rolled threaded reinforcing steel |
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| CN1045040A (en) * | 1990-04-05 | 1990-09-05 | 冶金工业部钢铁研究总院 | Cold rolling strap helps (screw thread) reinforcing bar producing device and technology |
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| JPH10137804A (en) * | 1996-11-12 | 1998-05-26 | Sanyo Special Steel Co Ltd | Rolling equipment for round bar and wire rod and its rolling method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015176515A1 (en) * | 2014-05-19 | 2015-11-26 | 中冶赛迪工程技术股份有限公司 | Production technology for screw-thread steel bar with three ribbed sides |
| CN105170646A (en) * | 2015-10-26 | 2015-12-23 | 中冶赛迪工程技术股份有限公司 | Economical bar sizing production line and method |
| CN109909298A (en) * | 2019-03-21 | 2019-06-21 | 中冶赛迪工程技术股份有限公司 | The production method of excellent steel and screw-thread steel production line of bar and excellent steel and screw-thread steel |
| CN109909298B (en) * | 2019-03-21 | 2024-02-23 | 中冶赛迪工程技术股份有限公司 | Production line of excellent steel and deformed steel bar and production method of excellent steel and deformed steel bar |
| CN112845579A (en) * | 2021-01-07 | 2021-05-28 | 赵洋梵 | Finish rolling process for manufacturing deformed steel bar |
| CN113560336A (en) * | 2021-07-26 | 2021-10-29 | 重庆钢铁研究所有限公司 | Preparation method of 17-4PH precipitation hardening stainless steel hexagonal steel profile |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015176515A1 (en) | 2015-11-26 |
| CN103978030B (en) | 2016-05-04 |
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