CN103212575B - A kind of eliminate the method for wave bending after hot rolled ribbed bars Water cooling - Google Patents
A kind of eliminate the method for wave bending after hot rolled ribbed bars Water cooling Download PDFInfo
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- CN103212575B CN103212575B CN201310085692.XA CN201310085692A CN103212575B CN 103212575 B CN103212575 B CN 103212575B CN 201310085692 A CN201310085692 A CN 201310085692A CN 103212575 B CN103212575 B CN 103212575B
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Abstract
The invention provides and a kind of eliminate the method for wave bending after hot rolled ribbed bars Water cooling, mainly comprise the steps: (1) height, length, width and spacing according to cross rib, set the preset height of character to be rolled, length, width and spacing；(2) calculate the size of the surface area F1 not rolling the cross rib that word side correspondence opposite side rolls character segment, calculate the size of character list area F2 to be rolled under preset value；(3) compare F1 Yu F2 size, as F1 with F2 is equal, then carry out cutting and the rolling of character according to preset value；As F1 with F2 is unequal, then successively height, width and the spacing of character is adjusted in the range of permission adjustment ratio, until F1 with F2 is equal, then according to the parameter after Tiao Zhenging carries out cutting and the rolling of character.The inventive method is workable, simple easily grasp；Applied once, permanently effective, can effectively solve the problem of wave bending after hot rolled ribbed bars Water cooling.
Description
Technical field
The invention belongs to reinforcing bar rolling technical field, relate to wave bending after a kind of elimination hot rolled ribbed bars Water cooling
Method.
Background technology
Along with the development of hot rolled ribbed bars production technology, reinforcing bar rolls rear Water cooling technique and has obtained generally should
With.If but controlled improper, would roll after reinforcing bar high pressure Water cooling and often produce wave buckling phenomenon at word, cause product appearance matter
Measure defective.Through inventor's analysis and summary, it is believed that with rolling the side of word (predominantly product type and logo) with normal
The opposite side surface area of rolled with cross rib is unequal, so that reinforcing bar is during Water cooling, and different side surface cooldown rates
Difference, and then shrinkage amount in reinforcing bar both sides is different, causes and occurs in that the wavy buckling phenomenon of product.What Fig. 1-4 represented i.e. causes
The contour structures of Ribbed Bar that above-mentioned phenomenon occurs, the surface of this Ribbed Bar is provided with two longitudinal rib 3 along longitudinally asymmetric, with
Longitudinal rib 3 is boundary line, has rolled cross rib 2 respectively in longitudinal rib 3 both sides, and wherein side also rolled for indicate product type and
The character 4 of logo.In accompanying drawing, Fig. 1 represents that Ribbed Bar does not rolls the contour structures of word side, and Fig. 2 represents that Ribbed Bar is rolled
It is shaped with the contour structures of character 4 side.Retrieve through technology, have no solution and the technology of relevant same problems both at home and abroad.
Summary of the invention
It is an object of the invention to provide and a kind of eliminate the method for wave bending after hot rolled ribbed bars Water cooling, pass through
Adjust the height of character, width and spacing make the surface area of steel longitudinal rib both sides equal, thus eliminate reinforcing bar Water cooling process
After roll be easily generated at word wave bending phenomenon.
To this end, the present invention adopts the following technical scheme that
A kind of eliminating the method for wave bending after hot rolled ribbed bars Water cooling, described Ribbed Bar sets with symmetry on it
The longitudinal rib put is demarcation line, and both sides have rolled cross rib respectively, and wherein side has also rolled character, and described method includes walking as follows
Rapid:
(1) according to height, length, width and the spacing of cross rib, the preset height of character to be rolled, preset length, pre-is set
If width and preset pitch；
(2) set and do not roll word side correspondence opposite side and roll the surface area of cross rib of character segment as F1, roll the table of word side character
Area is F2；Calculate the size of F1, calculate in the preset height that character to be rolled is given according to step (1), preset length, preset
The size of F2 in the case of width and preset pitch arrangement；
(3) compare F1 Yu F2 size, as F1 with F2 is equal, then according to the given preset height of step (1), preset length,
Predetermined width and preset pitch carry out cutting and the rolling of character；As F1 with F2 is unequal, then in the scope allowing adjustment ratio
The most successively height, width and the spacing of character is adjusted, until F1 with F2 is equal, then according to the character after Tiao Zhenging is high
Degree, width and spacing carry out cutting and the rolling of character.
In step (1), the preset height of described character is 0.6-1.0 times of cross rib height, and preset length is cross rib length
0.7-1.0 times, predetermined width is 0.8-1.5 times of cross rib width, and preset pitch is 1.3-2.0 times of cross rib spacing.
In step (3), the permission of described character height, character duration and character pitch adjusts ratio and is respectively ± 20%, ±
25%, ± 50%.
In step (3), compared with F1, if the Size Error of F2 is in ± 10%, the most no longer to the height of character, width and
Spacing is adjusted, and carries out cutting and the rolling of character immediately.
In the Ribbed Bar operation of rolling of specific model, under specific model, the cross rib parameter of reinforcing bar is wanted according to technical specification
Ask usually determine constant, equal with one side surface area of rolling word for reaching not roll word side, can only be by adjusting character
Highly, width and spacing make the surface area of both sides equal.
Especially, in the present invention, the height of cross rib refers to the spacing between cross rib upper surface peak and reinforcing bar basic circle surface,
The length of cross rib refer to regard to from the point of view of single cross rib, its two ends along the spacing of reinforcing bar circumferencial direction, the width of cross rib refers to regard to single cross rib
From the point of view of, its two ends along the longitudinal spacing of reinforcing bar, the spacing of cross rib refers to the center distance between adjacent cross rib；The height of character refers to character
Distance between upper surface and reinforcing bar basic circle surface, the length of character refers to the single character font length along reinforcing bar circumferencial direction, word
The width of symbol refers to the single character set width along reinforcing bar longitudinal direction, and the spacing of character refers to the center distance between adjacent character.
The operation of rolling of Ribbed Bar is: scribe transverse rib groove and character groove by icking tool on the groove of end sortie roll
(i.e. cutting operation), then implements rolling by roll groove to hot reinforcing bar bar, forms cross rib and character.Scribe transverse rib groove
Cutter makes according to cross rib parameter request, tool dimension namely determine constant after cross rib parameter determination.And on groove
Scribe character groove and transverse rib groove uses identical cutter, and the depth of cut of cutter is word on groove during scribing
Symbol groove or the degree of depth of transverse rib groove, that is rolled the height of the character on rear reinforcing bar or cross rib.Therefore entered by adjustment cutter
The cutter degree of depth adjust character height so that adjust character list area be the simplest and the most direct be also maximally effective way.
When adjust character height beyond still can not meet after certain limit require time, can adjust by adjusting character duration
Character list area, so wants more relative complex, because so also needing to the aesthetic problem considered after the length-width ratio change of character
And calculate increasingly complex than height change surface area；And character is because being limited between two longitudinal rib, on the one hand adjust character
Length can be limited by space, on the other hand adjusts character duration and adjustment character length is essentially all at adjustment character big
Little, for reduction procedure, only character duration is adjusted by regulation；After adjusting character height and width in allowing adjustment ratio
Still can not meet when requiring, character pitch can be adjusted, be adjusted by the density of character and roll word side surface area, such
Words are accomplished by redefining the centrage of each character, increasingly complex in operation, therefore as the adjustment of final step.To sum up,
During whole adjustment, simple as principle with processing, sequentially it is adjusted according to the order of character height, width and spacing.
The beneficial effects of the present invention is: roll after fundamentally solving reinforcing bar Water cooling and at word, be easily generated wave bending
Phenomenon；Method is workable, simple easily grasp；Applied once, permanently effective, from the point of view of the Ribbed Bar of specific model,
Can realize after determining character rolling parameter by the inventive method producing steadily in the long term, will not the most frequently adjust.
Accompanying drawing explanation
Fig. 1 is the front view of hot rolled ribbed bars；
Fig. 2 is the rearview of hot rolled ribbed bars；
Fig. 3 is the top view (not rolling field) of hot rolled ribbed bars；
Fig. 4 be Fig. 1 along A-A to sectional view.
In figure, 1-reinforcing bar basic circle, 2-cross rib, 3-longitudinal rib, 4-character, d-bar diameter, H-cross rib height, L-cross rib is long
Degree, M-cross rib width, N-cross rib spacing, h-character height, l-character length, m-character duration, n-character pitch.
Detailed description of the invention
Embodiment 1: a kind of hot rolled ribbed bars, structural parameters are as follows: diameter 16mm, cross rib height 1.8mm, cross rib length
8.0mm, cross rib width 4.0mm, cross rib spacing is 10.0mm, and its character to be rolled rolling word side is " 4E JISCO 20 " (space
Place is cross rib, and symmetrical with the cross rib of opposite side, lower same).
The a kind of of the present embodiment eliminates the method that above-mentioned hot rolled ribbed bars rolls the bending of rear Water cooling wave, including following
Step:
(1) according to height, length, width and the spacing of cross rib, if the preset height of character to be rolled is that 1.4mm(is by cross rib
Round up after 0.8 times of value of width acquirement), preset length be 8.0mm, predetermined width be 6.0mm, preset pitch be 20mm；
(2) set and do not roll word side correspondence opposite side and roll the surface area of cross rib of character segment as F1, roll word side character portion
Surface area be F2；The size calculating F1 is 1285mm2, in the preset height that character to be rolled is given according to step (1), in advance
If in the case of length, predetermined width and preset pitch arrangement, the size calculating F2 is 1126mm2；
(3) from step (2), F1 ＞ F2, and the Size Error of F2 exceedes-10% compared with F1, first adjusts character
Height, be computed, character height increase by 14.3% be 1.6mm time, F2 size is 1260 mm2, magnitude false compared with F1
Difference, can be according to the character height of 1.6mm, the character length of 8.0mm, the character duration of 6.0mm, the word of 20mm for-1.95%
Symbol spacing carries out cutting and the rolling of character.
Embodiment 2: a kind of hot rolled ribbed bars, structural parameters are as follows: diameter 20.0mm, and cross rib height 2.0mm, cross rib is long
Degree 10.0mm, cross rib width 8.6mm, cross rib spacing is 10.0mm, and its character to be rolled rolling word side is " 3E JISCO 20 ".
The a kind of of the present embodiment eliminates the method that above-mentioned hot rolled ribbed bars rolls the bending of rear Water cooling wave, including following
Step:
(1) according to height, length, width and the spacing of cross rib, if the preset height of character to be rolled is 2.0mm, presets length
Degree is that 10.3(is by the acquirement that rounds up after 1.2 times of values of cross rib width for 8.0mm, predetermined width) mm, preset pitch be
13.0mm；
(2) set and do not roll word side correspondence opposite side and roll the surface area of cross rib of character segment as F1, roll word side character portion
Surface area be F2；The size calculating F1 is 1690mm2, in the preset height that character to be rolled is given according to step (1), in advance
If in the case of length, predetermined width and preset pitch arrangement, the size calculating F2 is 2156mm2；
(3) from step (2), F1 ＜ F2, and the Size Error of F2, more than 10%, first adjusts character compared with F1
Highly, being computed, character height is when reducing 20% and being 1.6mm, and F2 size is 2035mm2, Size Error still surpasses compared with F1
Cross 10%；Then adjusting the width of character, character duration is when reducing 25% and being 7.7mm, and F2 size is 1867mm2, with F1 phase
Than Size Error still above 10%；Then adjusting the spacing of character, character pitch is when increasing by 30% and being 9.1mm, F1 with F2 is proper
Good equal, can be according to the character height of 1.6mm, the character length of 8.0mm, the character duration of 7.7mm, the intercharacter of 9.1mm
Away from the cutting and the rolling that carry out character.
Embodiment 3: a kind of hot rolled ribbed bars, structural parameters are as follows: diameter 25mm, highly 2.5mm, cross rib length
20mm, cross rib width 10mm, cross rib spacing is 12.5mm, and its character to be rolled rolling word side is " 5E JISCO 25 ".
The a kind of of the present embodiment eliminates the method that above-mentioned hot rolled ribbed bars rolls the bending of rear Water cooling wave, including following
Step:
(1) according to height, length, width and the spacing of cross rib, if the preset height of character to be rolled is 1.5mm, presets length
Degree is 14.0mm, predetermined width is 8.0mm, preset pitch is 20.0mm；
(2) set and do not roll word side correspondence opposite side and roll the surface area of cross rib of character segment as F1, roll word side character portion
Surface area be F2；The size calculating F1 is 2290mm2, in the preset height that character to be rolled is given according to step (1), in advance
If in the case of width and preset pitch arrangement, the size calculating F2 is 1946mm2；
(3) from step (2), F1 ＞ F2, and the Size Error of F2 exceedes-10% compared with F1, first adjusts character
Height, be computed, character height increase by 20% be 1.8mm time, F2 size is 2015 mm2, Size Error compared with F1
Still above-10%；Then adjusting the width of character, character duration is when increasing by 20% and being 9.6mm, and F2 size is 2216 mm2,
Size Error is 3.2% compared with F1；Can be according to the character height of 1.8mm, the character length of 14.0mm, the character width of 9.6mm
Degree, the character pitch of 20.0mm carry out cutting and the rolling of character.
The change of flexibility before and after using the inventive method of hot rolled ribbed bars in above-mentioned 3 kinds of embodiments is shown in Table 1.
Table 1 uses embodiment bar bending degree change table before and after the inventive method
Note: flexibility refers to put in the horizontal plane by the reinforcing bar bent, between the reinforcing bar arc top and the horizontal plane that record
Distance value.
As seen from the above table, hot rolled ribbed bars is after the method that the application present invention provides, and reinforcing bar is wave after Water cooling
Buckling phenomenon has obtained effective solution, and effect is notable, substantially increases product quality.
Claims (3)
1. the method that after eliminating hot rolled ribbed bars Water cooling, wave bends, described Ribbed Bar is to be symmetrical arranged on it
Longitudinal rib be demarcation line, both sides have rolled cross rib respectively, and wherein side has also rolled character, it is characterised in that described method
Comprise the steps:
(1) according to height, length, width and the spacing of cross rib, set the preset height of character to be rolled, preset length, preset width
Degree and preset pitch；The preset height of described character is 0.6-1.0 times of cross rib height, and preset length is the 0.7-of cross rib length
1.0 times, predetermined width is 0.8-1.5 times of cross rib width, and preset pitch is 1.3-2.0 times of cross rib spacing；
(2) set and do not roll word side correspondence opposite side and roll the surface area of cross rib of character segment as F1, roll the surface area of word side character
For F2；Calculate the size of F1, calculate in the preset height that character to be rolled is given according to step (1), preset length, predetermined width
The size of F2 in the case of arranging with preset pitch；
(3) compare F1 Yu F2 size, as F1 with F2 is equal, then according to given preset height, the preset length of step (1), preset
Width and preset pitch carry out cutting and the rolling of character；As F1 with F2 is unequal, then depend in the range of permission adjustment ratio
The secondary height to character, width and spacing are adjusted, until F1 with F2 be equal, then according to character height after Tiao Zhenging, width
Degree and spacing carry out cutting and the rolling of character.
The most according to claim 1 a kind of eliminate the method for wave bending, its feature after hot rolled ribbed bars Water cooling
Being, in step (3), the permission of described character height, character duration and character pitch adjusts ratio and is respectively ± 20%, ±
25%, ± 50%.
The most according to claim 1 a kind of eliminate the method for wave bending, its feature after hot rolled ribbed bars Water cooling
It is, in step (3), compared with F1, if the Size Error of F2 is in ± 10%, the most no longer height, width and the spacing to character
It is adjusted, carries out cutting and the rolling of character immediately.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310085692.XA CN103212575B (en) | 2013-03-18 | 2013-03-18 | A kind of eliminate the method for wave bending after hot rolled ribbed bars Water cooling |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310085692.XA CN103212575B (en) | 2013-03-18 | 2013-03-18 | A kind of eliminate the method for wave bending after hot rolled ribbed bars Water cooling |
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| CN103212575A CN103212575A (en) | 2013-07-24 |
| CN103212575B true CN103212575B (en) | 2016-08-24 |
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| CN107282632A (en) * | 2017-05-08 | 2017-10-24 | 首钢水城钢铁（集团）有限责任公司 | A kind of screw-thread steel finished product ripple glaze optimize technique |
| CN113020253A (en) * | 2021-02-27 | 2021-06-25 | 盐城市联鑫钢铁有限公司 | Method for solving wave bending of finished hot-rolled ribbed steel bar |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10008693A1 (en) * | 2000-02-24 | 2001-09-06 | Wolfgang Mudersbach | Concrete reinforcing steel method/machine for concrete steel rolling mill produces round strips containing smooth/ribbed connected bars, straightened, slit, and cut-to-length |
| CN2471439Y (en) * | 2001-03-14 | 2002-01-16 | 张愚 | Hot rolled hexa-edge ribbed steel bar |
| CN1718770A (en) * | 2005-07-07 | 2006-01-11 | 东北大学 | Ultra-rapid cooling production process of high-strength ribbed steel bar after rolling |
| CN2813636Y (en) * | 2005-02-16 | 2006-09-06 | 安阳钢铁集团有限责任公司 | Superfine grain hot-rolling ribbed reinforcing rod |
-
2013
- 2013-03-18 CN CN201310085692.XA patent/CN103212575B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10008693A1 (en) * | 2000-02-24 | 2001-09-06 | Wolfgang Mudersbach | Concrete reinforcing steel method/machine for concrete steel rolling mill produces round strips containing smooth/ribbed connected bars, straightened, slit, and cut-to-length |
| CN2471439Y (en) * | 2001-03-14 | 2002-01-16 | 张愚 | Hot rolled hexa-edge ribbed steel bar |
| CN2813636Y (en) * | 2005-02-16 | 2006-09-06 | 安阳钢铁集团有限责任公司 | Superfine grain hot-rolling ribbed reinforcing rod |
| CN1718770A (en) * | 2005-07-07 | 2006-01-11 | 东北大学 | Ultra-rapid cooling production process of high-strength ribbed steel bar after rolling |
Non-Patent Citations (1)
| Title |
|---|
| 热轧带肋钢筋表面气泡成因及消除;侯心愿等;《河南冶金》;20080229;第16卷(第1期);第49-50页 * |
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