CN110144442B - Water quenching device for heat treatment of high-speed hot-rolled thin steel wire - Google Patents
Water quenching device for heat treatment of high-speed hot-rolled thin steel wire Download PDFInfo
- Publication number
- CN110144442B CN110144442B CN201910508853.9A CN201910508853A CN110144442B CN 110144442 B CN110144442 B CN 110144442B CN 201910508853 A CN201910508853 A CN 201910508853A CN 110144442 B CN110144442 B CN 110144442B
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- China
- Prior art keywords
- cooling
- water
- air
- steel wire
- nozzle
- Prior art date
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 38
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 25
- 239000010959 steel Substances 0.000 title claims abstract description 25
- 238000010791 quenching Methods 0.000 title claims abstract description 13
- 230000000171 quenching effect Effects 0.000 title claims abstract description 12
- 238000010438 heat treatment Methods 0.000 title claims abstract description 9
- 238000001816 cooling Methods 0.000 claims abstract description 75
- 238000002156 mixing Methods 0.000 claims abstract description 18
- 238000005098 hot rolling Methods 0.000 claims description 3
- 238000000889 atomisation Methods 0.000 description 9
- 239000007788 liquid Substances 0.000 description 6
- 239000002245 particle Substances 0.000 description 5
- 239000002826 coolant Substances 0.000 description 4
- 239000003595 mist Substances 0.000 description 4
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003670 easy-to-clean Effects 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/62—Quenching devices
- C21D1/667—Quenching devices for spray quenching
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/525—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length for wire, for rods
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Nozzles (AREA)
Abstract
The invention discloses a water quenching device for heat treatment of a high-speed hot rolled thin steel wire, which comprises a cooling box, wherein a cooling component is arranged in the cooling box and is welded and fixed in the cooling box through a cooling bracket, the cooling component consists of a positioning mold core arranged at the end part and three cooling nozzles assembled in a cooling pipe, the cooling pipe is provided with an overflow port, the cooling nozzle consists of an air inlet pipe, an air cavity, an atomizing plate, a water-air mixing cavity and a nozzle, the cooling nozzle is divided into two cavities of the air cavity and the water-air mixing cavity, the air cavity is connected with the air inlet pipe, the water inlet pipe is connected with the water-air mixing cavity, the nozzle is arranged around the steel wire in the middle part, the air cavity and the water-air mixing cavity are separated by the atomizing plate.
Description
Technical Field
The invention relates to a water quenching device, in particular to a water quenching device for heat treatment of a high-speed hot-rolled thin steel wire.
Background
The steel wire cogging needs links such as acid washing, phosphating, water flushing and the like, waste gas, waste residue and waste water formed by acid washing and phosphating fine water flushing cause serious damage to the environment, and the hot rolling process technology and water quenching treatment are adopted, so that no three wastes are discharged.
Disclosure of Invention
The invention aims to provide a water quenching device for heat treatment of high-speed hot rolled thin steel wires.
The technical scheme adopted by the invention is as follows:
a water quenching device for high-speed hot rolling thin steel wire heat treatment which characterized in that: the cooling device comprises a cooling box, a cooling assembly is installed in the cooling box, a steel wire penetrates through the cooling assembly, the cooling assembly is fixedly arranged in the cooling box through a cooling support in a welded mode, the cooling assembly is composed of a positioning mold core arranged at the end portion and a cooling nozzle arranged in a cooling pipe in a three-assembly mode, the cooling pipe is provided with an overflow port, the cooling nozzle is composed of an air inlet pipe, an air cavity, an atomizing plate, a water-air mixing cavity and a nozzle, the two cavities of the air cavity and the water-air mixing cavity are arranged in the cooling nozzle, the air cavity is connected with the air inlet pipe, the water-air mixing cavity is connected with the water inlet pipe, the nozzle is arranged around the steel wire in the middle portion, and the air cavity and the water-air mixing cavity are separated through the atomizing plate.
The cooling boxes are provided with three cooling boxes.
The invention has the advantages that: the porous atomization plate is adopted to perform primary atomization on the water medium, and secondary atomization is performed on the gas-liquid mixed medium through the nozzle, so that particles of the cooling medium are smaller, the cooling efficiency is higher, the cooling speed can reach more than 800 degrees per second, the grain size of the steel wire is finer, the sorbite rate reaches more than 92%, the tensile pulling strength reaches 1200N, the elongation reaches 12%, the surface shrinkage rate reaches 95.7%, the surface of the steel wire is rapidly cooled by water mist impact, the formation of oxide skin is reduced, and the oxide layer is shallower and finer and is easy to clean.
Drawings
The invention will be described in further detail with reference to the drawings and the detailed description.
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic illustration of the interior of the present invention;
FIG. 3 is a block diagram of a cooling module of the present invention;
fig. 4 is a structural view of the cooling nozzle of the present invention.
Wherein: 1. a cooling box; 2. a cooling assembly; 3. a cooling support; 4. positioning a mold core; 5. cooling the nozzle; 6. an overflow port; 7. a cooling tube; 8. an air inlet pipe; 9. a water inlet pipe; 10. an air cavity; 11. an atomization plate; 12. a water-gas mixing cavity; 13. a spout; 14 steel wire.
Description of the embodiments
As shown in fig. 1 to 4, a water quenching apparatus for heat treatment of high-speed hot rolled thin steel wires is characterized in that: the cooling device comprises a cooling box 1, wherein a cooling component 2 is installed in the cooling box 1, a steel wire 14 penetrates through the cooling component 2, the cooling component 2 is fixedly welded in the cooling box 1 through a cooling support 3, the cooling component 2 is composed of a positioning mold core 4 arranged at the end part and a cooling nozzle 5 assembled in a cooling pipe 7, the cooling pipe 7 is provided with an overflow port 6, the cooling nozzle 5 is composed of an air inlet pipe 8, a water inlet pipe 9, an air cavity 10, an atomization plate 11, a water-air mixing cavity 12 and a spray nozzle 13, the air cavity 10 and the water-air mixing cavity 12 are divided into two cavities in the cooling nozzle 5, the air cavity 10 is connected with the air inlet pipe 8, the water inlet pipe 9 is connected with the water-air mixing cavity 12, the spray nozzle 13 is arranged around the steel wire 14 in the middle part, and the air cavity 10 is separated from the water-air mixing cavity 12 through the atomization plate 11.
The cooling box 1 is provided with three.
Technical principle: the invention adopts the circulating cooling water to cool and quench the steel wire, and has the advantages of high cooling speed which reaches 400 ℃ per second in the cooling process, and the water is a safe and efficient quenching cooling medium. The water mist does not contain harmful substances after the water is vaporized, so the water is an ideal cooling medium, according to researches, the water is vaporized in three states, bubbles are formed after the water contacts with the steel wire, the blocking of the bubbles influences the water cooling capacity, and the bubbles have strong heat absorption capacity after being broken.
The air inlet pipe 8 above the cooling nozzle 5 is connected with compressed air, the air inlet pressure is 0.2Mpa, the water inlet pipe 9 is connected with the circulating cooling water of the water pump, the water inlet pressure is 0.2Mpa, the air inlet pressure or the water inlet pressure can be independently regulated according to the cooling requirement, and the air inlet pressure and the water inlet pressure can be simultaneously regulated. Compressed air entering the air cavity is pressed into the water-air mixing cavity through the porous plate, the compressed air is injected into water to change the water into a gas-liquid mixture, and when the gas-liquid two-phase mixture is sprayed out through the nozzle, water mist liquid particles are split to be contacted with the steel wire, and the smaller the particles of the liquid particles are, the better the cooling effect is.
The invention has the advantages that: the porous atomization plate is adopted to perform primary atomization on the water medium, and secondary atomization is performed on the gas-liquid mixed medium through the nozzle, so that particles of the cooling medium are smaller, the cooling efficiency is higher, the cooling speed can reach more than 800 degrees per second, the grain size of the steel wire is finer, the sorbite rate reaches more than 92%, the tensile pulling strength reaches 1200N, the elongation reaches 12%, the surface shrinkage rate reaches 95.7%, the surface of the steel wire is rapidly cooled by water mist impact, the formation of oxide skin is reduced, and the oxide layer is shallower and finer and is easy to clean.
Claims (2)
1. A water quenching device for high-speed hot rolling thin steel wire heat treatment which characterized in that: the cooling device comprises a cooling box, a cooling assembly is installed in the cooling box, a steel wire penetrates through the cooling assembly, the cooling assembly is fixedly arranged in the cooling box through a cooling support in a welded mode, the cooling assembly is composed of a positioning mold core arranged at the end portion and a cooling nozzle arranged in a cooling pipe in a three-assembly mode, the cooling pipe is provided with an overflow port, the cooling nozzle is composed of an air inlet pipe, an air cavity, an atomizing plate, a water-air mixing cavity and a nozzle, the two cavities of the air cavity and the water-air mixing cavity are arranged in the cooling nozzle, the air cavity is connected with the air inlet pipe, the water-air mixing cavity is connected with the water inlet pipe, the nozzle is arranged around the steel wire in the middle portion, and the air cavity and the water-air mixing cavity are separated through the atomizing plate.
2. A water quenching apparatus for heat treatment of high-speed hot rolled thin steel wire as claimed in claim 1, wherein: the cooling boxes are provided with three cooling boxes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910508853.9A CN110144442B (en) | 2019-06-13 | 2019-06-13 | Water quenching device for heat treatment of high-speed hot-rolled thin steel wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910508853.9A CN110144442B (en) | 2019-06-13 | 2019-06-13 | Water quenching device for heat treatment of high-speed hot-rolled thin steel wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110144442A CN110144442A (en) | 2019-08-20 |
| CN110144442B true CN110144442B (en) | 2024-01-19 |
Family
ID=67591205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910508853.9A Active CN110144442B (en) | 2019-06-13 | 2019-06-13 | Water quenching device for heat treatment of high-speed hot-rolled thin steel wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110144442B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191508258A (en) * | 1915-06-03 | 1916-02-10 | Christer Peter Sandberg | An Improved Method for the Treatment of Steel. |
| US4371149A (en) * | 1979-11-09 | 1983-02-01 | Ishikawajima-Harima Jukogyo Kabushiki Kaisha | Apparatus for cooling sheet steel by water spraying |
| JP2007056300A (en) * | 2005-08-23 | 2007-03-08 | Sumitomo Electric Ind Ltd | Direct heat treatment method and apparatus for hot-rolled wire rod |
| CN102581043A (en) * | 2011-01-18 | 2012-07-18 | 宝山钢铁股份有限公司 | Water mist cooling system and water mist cooling method for steel strip hot-rolling process |
| CN103357675A (en) * | 2013-06-28 | 2013-10-23 | 中冶南方工程技术有限公司 | Aerial fog cooling method and device for hot rolling H-shaped steel cooling bed |
| CN104846186A (en) * | 2015-06-04 | 2015-08-19 | 中冶南方(武汉)威仕工业炉有限公司 | Cooling device for heat treatment of metal strip |
| CN211665133U (en) * | 2019-06-13 | 2020-10-13 | 范淼森 | Water quenching device for high-speed hot-rolling thin steel wire heat treatment |
-
2019
- 2019-06-13 CN CN201910508853.9A patent/CN110144442B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191508258A (en) * | 1915-06-03 | 1916-02-10 | Christer Peter Sandberg | An Improved Method for the Treatment of Steel. |
| US4371149A (en) * | 1979-11-09 | 1983-02-01 | Ishikawajima-Harima Jukogyo Kabushiki Kaisha | Apparatus for cooling sheet steel by water spraying |
| JP2007056300A (en) * | 2005-08-23 | 2007-03-08 | Sumitomo Electric Ind Ltd | Direct heat treatment method and apparatus for hot-rolled wire rod |
| CN102581043A (en) * | 2011-01-18 | 2012-07-18 | 宝山钢铁股份有限公司 | Water mist cooling system and water mist cooling method for steel strip hot-rolling process |
| CN103357675A (en) * | 2013-06-28 | 2013-10-23 | 中冶南方工程技术有限公司 | Aerial fog cooling method and device for hot rolling H-shaped steel cooling bed |
| CN104846186A (en) * | 2015-06-04 | 2015-08-19 | 中冶南方(武汉)威仕工业炉有限公司 | Cooling device for heat treatment of metal strip |
| CN211665133U (en) * | 2019-06-13 | 2020-10-13 | 范淼森 | Water quenching device for high-speed hot-rolling thin steel wire heat treatment |
Non-Patent Citations (1)
| Title |
|---|
| 冷拔与水淬火工艺对予应力钢丝力学性能的影响;冯光纯;重庆大学学报（自然科学版））;第20卷(第2期);74-79 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110144442A (en) | 2019-08-20 |
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