CN201211532Y - Vertical rotary bisection segment refrigerating device after bar material two-line splitting rolling - Google Patents
Vertical rotary bisection segment refrigerating device after bar material two-line splitting rolling Download PDFInfo
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- CN201211532Y CN201211532Y CNU2008201027529U CN200820102752U CN201211532Y CN 201211532 Y CN201211532 Y CN 201211532Y CN U2008201027529 U CNU2008201027529 U CN U2008201027529U CN 200820102752 U CN200820102752 U CN 200820102752U CN 201211532 Y CN201211532 Y CN 201211532Y
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- guide groove
- flat guide
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Abstract
The utility model discloses a vertical rotating equal-section cooling device after double-slitting rolling of bar materials, which relates to a bar hot-rolling cooling device, which comprises a feed inlet, a double vertical cooler, a vertical rotating flat guide groove, a pinch roll conveying device, and a frequency conversion transporting roller table, wherein two cavities of the vertical rotating flat guide groove are horn mouth shaped at up-down positions and shrinkingly extend forward, and two bar s are horizontally and separately placed when reaching the positions of horn mouths. An air-cooled guide pipe and a water-cooled double horizontal cooler after the roller table are also arranged. The device has the advantages that a secondary gradual cooling mode with verticality first and horizontality then is adopted; and the mode utilizes secondary on-line afterheat to treat a uniform phase transformation microstructure, thereby ensuring that the difference of fractographies of finished products is greatly reduced, and effectively improving the toughness property of steel materials.
Description
Technical field:
The utility model relates to the rod hot rolling cooling device.
Background technology:
At present on the bar and wire rod rolling process production line, cooling control after rolling fine-grained steel technology is adopted in the vertical two line cuttings of bar, this technology uses cooling device by charging aperture, two line upright radiators, the empty guide groove of crossing, pinch roll apparatus, the frequency conversion roller-conveying device is formed, charging aperture is two horn mouths up and down, make two bars enter horn mouth one on the other easily and arrive vertical cooling water pipe, vertical cooling water pipe is the shaped double tube structure, be provided with water inlet and delivery port in the pipe, adopt Water Cooling Technology that two bars are cooled off, two bars enter the empty guide groove of crossing after vertical cooling water pipe comes out, it is single bathtub construction that sky is crossed guide groove, because two bars enter same horn mouth one on the other, gravitate maintains an equal level gradually at the groove inner height, and crossing the guide groove outlet from sky has been the same level height.Enter pinch roll apparatus, roller dynamic driving in passageway by the up-down rollers clamping, is given bar action edge in the past, and then bar enters the frequency conversion roller-conveying device, sends two bar transition to next procedure.
Cooling control after rolling fine-grained steel technology is adopted in the vertical two line cuttings of this kind bar, only rely on the once supper-fast cooling of vertical cooling water pipe to make steel surface to core temperature linear increment occur, the superficial layer phase transformation is carried out in being cooled to the process of rising again, and the core phase transformation is carried out when cooling rear surface layer is risen again, because core and top layer phase transition temperature interval difference, cause histological difference bigger, even occur mixed crystal or Wei the formula tissue, the end properties fluctuation is big, tensile strength and yield tensile ratio Cp value are in the level Four level substantially, the difficult control of stability, in addition, antidetonation index qualification rate is less than 50% also.
Summary of the invention:
The purpose of this utility model is to overcome above-mentioned defective, provides a kind of bar two line cuttings to roll the upright section of dividing equally the cooling device that changes in back.
Scheme of the present utility model is: charging aperture is two horn mouths up and down; Two line upright radiators are for going out the two-wire cooling water pipe that splits up and down of open height corresponding to two horn mouths; The flat guide groove of upright commentaries on classics is a dual-slot structure, following groove is a level trough, its inlet with two line upright radiators under groove contour corresponding, last groove be about tipper, groove is contour corresponding on tipper entrance height and the two line upright radiators, go out open height with upright change split about groove under the flat guide groove contour; What the next-door neighbour found the flat guide groove of commentaries on classics is guiding tube, and the guiding tube structure is the two box structures of convergent shape, outlet next-door neighbour pinch roll apparatus; Row's roller top of frequency conversion roller-conveying device is provided with the longitudinal baffle that two bars are split; Frequency conversion rollgang rear is provided with the corresponding horizontal cooler of two lines that is connected, and this cooler is that level splits the shaped double tube structure, is provided with water inlet and delivery port in the cooler.
Advantage of the present utility model is: adopt the flat secondary segmenting refrigerating mode in upright earlier back, this pattern is utilized the even phase-change organization of the online Heat Treatment of secondary, finished product fractography otherness is greatly reduced, effectively improve the steel toughness and tenacity, successfully solved the difficult problem of finished steel stability control.Antidetonation index qualification rate reaches more than 95% at present, and tensile strength and yield tensile ratio Cp value all improve two grades, greatly reduce finished product and declare useless rate, have improved the safety in utilization of steel.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the A-A cutaway view of Fig. 1.
Fig. 3 is the B-B cutaway view of Fig. 1.
Fig. 4 is the C-C cutaway view of Fig. 1.
Fig. 5 is the D-D cutaway view of Fig. 1.
The specific embodiment:
The utility model comprises charging aperture (1), two line upright radiators (2), upright flat guide groove (4), pinch roll apparatus (6), the frequency conversion rollgang of changeing, charging aperture (1) be about two horn mouths; Two line upright radiators (2) are for going out the two-wire cooling water pipe that splits up and down of open height corresponding to two horn mouths; The upright flat guide groove of commentaries on classics (4) is a dual-slot structure, following groove is a level trough, groove is contour corresponding down with two line upright radiators (2) for its inlet, last groove is a tipper up and down, upward groove is contour corresponding with two line upright radiators (2) for the tipper entrance height, goes out open height and splits contour down about groove with the upright flat guide groove (4) that changes; What the next-door neighbour found the flat guide groove of commentaries on classics (4) is guiding tube (5), and guiding tube (5) structure is the two box structures of convergent shape, outlet next-door neighbour pinch roll apparatus (6); Row's roller top of frequency conversion roller-conveying device (7) is provided with the longitudinal baffle that two bars are split; Frequency conversion rollgang rear is provided with the corresponding horizontal cooler of two lines (8) that is connected, and this cooler is that level splits the shaped double tube structure, is provided with water inlet and delivery port in the cooler.
Fig. 2 is two line upright radiators (2), is made up of support, last lower outer pipe, is with Venturi tube in the outer tube as interior pipe, and bar passes from interior pipe, and cooling water flows through in the gap by interior pipe and bar.
Fig. 3 is the upright flat guide groove (4) that changes, and two bars are from forwards extending in two cavitys up and down about being illustrated as, and the circle of band hatching is a current location, the band broken circle is an anterior position, two cavitys are horn mouth one on the other and forwards shrink extension, arrive the horn mouth position, and two bars then are level and split.
Fig. 4 is guiding tube (5), and band hatching circle is current location in the guiding tube (5), and the band broken circle is an anterior position.
Fig. 5 is the horizontal cooler of two lines (8) at rear portion, is made up of two outer tubes that support, level split, and is with Venturi tube in the outer tube.
Two bars enter two horn mouths respectively from charging aperture (1), in two line upright radiators (2), split water-cooled in two turbulent pipe, then entering the upright flat guide groove (4) that changes again splits and changes flat, then enter parallel the moving ahead of guiding tube (5), realize the air cooling simultaneously, enter the frequency conversion rollgang through pinch roll again, by the dividing plate on row's roller it is split, and in changeing flat guide groove and frequency conversion rollgang, rise again, the bar surface is dwindled with the core temperature difference, enter the horizontal cooler of two lines (8) water cooling once more then, be delivered to cold bed through roller-way again, and rise again once more during this period, reach the online Heat Treatment of secondary and make phase-change organization even, the purpose that steel performance is stable.
Prior art two bars are risen again for cooling once, the influence cooling uniformity, so the utility model bar traveling process adopts the secondary segmenting cooling, and the online Heat Treatment of secondary, good cooling results not only, and make the steel surface more even with core temperature.
Claims (1)
1, the upright section of dividing equally the cooling device that changes in back is rolled in bar two line cuttings, comprises charging aperture (1), two line upright radiators (2), upright flat guide groove (4), pinch roll apparatus (6), the frequency conversion rollgang of changeing, and it is characterized in that charging aperture (1) is two horn mouths up and down; Two line upright radiators (2) are for going out the two-wire cooling water pipe that splits up and down of open height corresponding to two horn mouths; The upright flat guide groove of commentaries on classics (4) is a dual-slot structure, following groove is a level trough, groove is contour corresponding down with two line upright radiators (2) for its inlet, last groove is a tipper up and down, upward groove is contour corresponding with two line upright radiators (2) for the tipper entrance height, goes out open height and splits contour down about groove with the upright flat guide groove (4) that changes; What the next-door neighbour found the flat guide groove of commentaries on classics (4) is guiding tube (5), and guiding tube (5) structure is the two box structures of convergent shape, outlet next-door neighbour pinch roll apparatus (6); Row's roller top of frequency conversion roller-conveying device (7) is provided with the longitudinal baffle that two bars are split; Frequency conversion rollgang rear is provided with the corresponding horizontal cooler of two lines (8) that is connected, and this cooler is that level splits the shaped double tube structure, is provided with water inlet and delivery port in the cooler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201027529U CN201211532Y (en) | 2008-06-23 | 2008-06-23 | Vertical rotary bisection segment refrigerating device after bar material two-line splitting rolling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201027529U CN201211532Y (en) | 2008-06-23 | 2008-06-23 | Vertical rotary bisection segment refrigerating device after bar material two-line splitting rolling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201211532Y true CN201211532Y (en) | 2009-03-25 |
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ID=40495686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201027529U Expired - Fee Related CN201211532Y (en) | 2008-06-23 | 2008-06-23 | Vertical rotary bisection segment refrigerating device after bar material two-line splitting rolling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201211532Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108284590A (en) * | 2017-01-10 | 2018-07-17 | 中国科学院宁波材料技术与工程研究所 | 3D printing consumptive material wire-drawing equipment |
| CN112246889A (en) * | 2020-09-09 | 2021-01-22 | 江苏海洋大学 | Method and equipment for cooling steel rolling rod wire through water to strengthen heat exchange |
-
2008
- 2008-06-23 CN CNU2008201027529U patent/CN201211532Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108284590A (en) * | 2017-01-10 | 2018-07-17 | 中国科学院宁波材料技术与工程研究所 | 3D printing consumptive material wire-drawing equipment |
| CN108284590B (en) * | 2017-01-10 | 2020-07-03 | 中国科学院宁波材料技术与工程研究所 | 3D printing consumable wire drawing equipment |
| CN112246889A (en) * | 2020-09-09 | 2021-01-22 | 江苏海洋大学 | Method and equipment for cooling steel rolling rod wire through water to strengthen heat exchange |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090325 Termination date: 20160623 |