CN113375531B - Quenching machine nozzle striking angle measuring tool and manufacturing method and using method thereof - Google Patents
Quenching machine nozzle striking angle measuring tool and manufacturing method and using method thereof Download PDFInfo
- Publication number
- CN113375531B CN113375531B CN202110529458.6A CN202110529458A CN113375531B CN 113375531 B CN113375531 B CN 113375531B CN 202110529458 A CN202110529458 A CN 202110529458A CN 113375531 B CN113375531 B CN 113375531B
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- steel plate
- measuring tool
- quenching machine
- nozzle
- quenching
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- 238000010791 quenching Methods 0.000 title claims abstract description 68
- 230000000171 quenching effect Effects 0.000 title claims abstract description 68
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims description 16
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 65
- 239000010959 steel Substances 0.000 claims abstract description 65
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000004519 grease Substances 0.000 claims description 17
- 238000010438 heat treatment Methods 0.000 claims description 8
- 238000005507 spraying Methods 0.000 claims description 7
- 238000005520 cutting process Methods 0.000 claims description 6
- 238000005498 polishing Methods 0.000 claims description 6
- 238000009835 boiling Methods 0.000 claims description 3
- 238000005496 tempering Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 6
- 238000012797 qualification Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/24—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes
-
- 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
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- 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
- C21D11/00—Process control or regulation for heat treatments
Abstract
The invention discloses a tool for measuring the striking angle of a nozzle of a quenching machine and a manufacturing method thereof, which relate to the technical field of steel production. The adjustment time for measuring the striking angle of the gap nozzle water curtain of the quenching machine is effectively reduced, the maintenance efficiency is improved, meanwhile, the measurement precision is improved, the adjusted quenching plate shape is better, the quenching plate shape qualification rate can be effectively improved, the saving cost is reduced, and the application prospect is good.
Description
Technical Field
The invention relates to the technical field of steel production, in particular to a quenching machine nozzle striking angle measuring tool, a manufacturing method and a using method thereof.
Background
The roller quenching machine is a key device of a steel plate heat treatment line, and is a preferred device type of the current high-strength plate quenching production. The nozzle is an important component part of the quenching machine, the quality of the striking angle of the water curtain of the nozzle directly influences the plate shape percent of pass of the quenching plate, in order to ensure the equipment precision of the quenching machine and improve the plate shape percent of pass of the quenching plate, the striking angle of the nozzle is required to be measured by a corresponding measuring tool to see whether the striking angle is on a central line or not, whether the precision of the nozzle meets the requirement is judged, and meanwhile, the position and the distance of the header are regulated according to measurement data. The existing nozzle striking angle measuring tool has the following defects:
(1) the measuring tool is 3 square woods, the three square woods are required to be lifted and placed on an outlet roller way of the quenching machine during measurement, the three square woods are sequentially placed in the left-right direction, then the roller way of the quenching machine is started, the three square woods are poured back to the position of a gap nozzle of the quenching machine, the transportation is inconvenient, the three square woods are required to be manually transported to the roller way, potential safety hazards exist, and the measuring process is complex;
(2) the position of square timber can change when running on the roller way, so that the measurement result is invalid and needs to be measured again, the accuracy of the data measured by the square timber is poor, and the use effect is not ideal after the position of the collecting pipe is adjusted according to the measured data.
Disclosure of Invention
Aiming at the technical problems, the invention overcomes the defects of the prior art and provides a quenching machine nozzle striking angle measuring tool which is characterized in that a steel plate is used for manufacturing an integrated steel plate head part and a steel plate tail part, the steel plate head part is rectangular, the steel plate tail part is isosceles trapezoid, the distance between the upper bottom edge and the lower bottom edge is 1.5-2m, and the short side of the steel plate head part is equal in width to the lower bottom edge of the steel plate tail part and is in alignment connection with the lower bottom edge of the steel plate tail part.
The technical scheme of the invention is as follows:
the tool for measuring the striking angle of the nozzle of the quenching machine and the manufacturing method thereof have the total length of 10m along the long side direction of the head of the steel plate.
The tool for measuring the striking angle of the nozzle of the quenching machine and the manufacturing method thereof have the unevenness smaller than 3mm/2m.
A second object of the present invention is to provide a method for manufacturing a tool for measuring a striking angle of a nozzle of a quenching machine, comprising the steps of:
s1, selecting a steel plate with a steel grade being wear-resistant steel;
s2, carrying out heat treatment on the steel plate, adopting high-temperature quenching at 900-910 ℃, and carrying out low-temperature tempering at 180-200 ℃ on the steel plate after quenching;
s3, flattening the steel plate after the heat treatment is finished, so that the unevenness is less than 3mm/2m;
s4, cutting the tail of the steel plate into isosceles trapezoids with the length of 1.5-2 meters by adopting a flame cutting machine;
and S5, polishing the edge of the steel plate by adopting a polishing machine, so as to ensure the smoothness of the edge of the measuring plate.
In the aforementioned method for manufacturing a tool for measuring the striking angle of a nozzle of a quenching machine, in step S1, the steel plate has a specification of 120mm x 3200mm x 10000mm.
The third object of the present invention is to provide a method for using a tool for measuring the striking angle of a nozzle of a quenching machine, wherein the striking angles of two edges are simultaneously tested by spraying water once, specifically: the method comprises the steps of uniformly smearing measured grease on the isosceles trapezoid edge of a measuring tool, lifting the measuring tool to a rear roller way of a quenching machine by using a travelling crane after grease smearing, swinging a measured steel plate at the middle position of the roller way by using a rear transverse moving device of the quenching machine, stopping the measuring tool after moving from the rear roller way of the quenching machine to the position of a gap nozzle of the quenching machine at a speed of 0.06-0.08m/s, setting the gap of the quenching machine to be the thickness of the measuring tool, testing a valve of the gap nozzle, setting the opening degree to be 30%, boiling water for 3min, generating an obvious included angle by the grease after spraying water by the nozzle, measuring the included angle between an upper water line and a lower water line by using a ruler, thereby obtaining the center line precision of the nozzle, and adjusting the position of the nozzle according to measured data.
The application method of the quenching machine nozzle striking angle measuring tool comprises the steps of enabling the thickness of grease to be 0.3-0.6mm and enabling the length of the grease to be 1.5-2m.
The beneficial effects of the invention are as follows:
(1) According to the invention, the adjustment time for measuring the striking angle of the water curtain of the gap nozzle of the quenching machine is effectively reduced, the overhaul efficiency is improved, the measurement precision is improved, the effect is better after the position of the collecting pipe of the quenching machine is adjusted by using the data measured by the tool, the equipment precision of the quenching machine is higher, the quenching plate type after adjustment is better, the plate type qualification rate of the quenching plate can be effectively improved, the rescue cost is reduced, and the application prospect is good;
(2) According to the invention, square timber is changed into steel plate, and the steel plate can be directly lifted to the outlet roller way of the quenching machine by using travelling crane, so that manual transportation is avoided, and potential safety hazard is eliminated;
(3) According to the invention, the tail of the steel plate is cut into the isosceles trapezoid with the length of 1.5-2 meters, so that a certain included angle is formed between the edge of the steel plate and the roller way, and meanwhile, the tail is cut into the isosceles trapezoid, so that the same inclination modes of two sides can be ensured, the striking angles of the two edge parts can be tested at the same time only by spraying water once, the measurement time is saved, and the efficiency is improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
wherein: 1. a steel plate head; 2. the tail of the steel plate.
Detailed Description
The structure of the tool for measuring the striking angle of the nozzle of the quenching machine is shown in fig. 1, and the tool comprises an integrated steel plate head part 1 and an integrated steel plate tail part 2. The steel plate head 1 is rectangular, the steel plate tail 2 is isosceles trapezoid, the distance between the upper bottom edge and the lower bottom edge is 1.5-2m, and the total length of the measuring tool is 10m along the long side direction of the steel plate head 1. The short side of the steel plate head part 1 is equal in width with the lower bottom edge of the steel plate tail part 2, and the two parts are aligned and connected.
The manufacturing method of the tool comprises the following steps:
s1, selecting a steel plate with a steel grade of wear-resistant steel, wherein the steel plate specification is 120mm x 3200mm x 10000mm;
s2, carrying out heat treatment on the steel plate, adopting high-temperature quenching at 900-910 ℃, and carrying out low-temperature tempering at 180-200 ℃ on the steel plate after quenching;
s3, flattening the steel plate after the heat treatment is finished, so that the unevenness is less than 3mm/2m;
s4, cutting the tail 2 of the steel plate into isosceles trapezoids with the length of 1.5-2 meters by adopting a flame cutting machine;
and S5, polishing the edge of the steel plate by adopting a polishing machine, ensuring the smoothness of the edge of the measuring plate, and avoiding scratching a quenching machine roller way.
The using method of the tool comprises the following steps:
the measured grease is uniformly smeared on the isosceles trapezoid edge of the measuring tool, the thickness of the grease is 0.3-0.6mm, and the length of the grease is 1.5-2m. And after the grease is smeared, lifting the measuring tool to a rear roller way of the quenching machine by using a travelling crane, swinging the measuring steel plate at the middle position of the roller way by using a rear transverse moving device of the quenching machine, stopping the measuring tool after moving from the rear roller way of the quenching machine to the position of a gap nozzle of the quenching machine at the speed of 0.06-0.08m/s, setting the roller gap of the quenching machine as the thickness of the measuring tool, testing the gap nozzle by selecting a valve, setting the opening degree to 30%, boiling water for 3min, spraying the grease by the nozzle to generate an obvious included angle, measuring the included angle of an upper water line and a lower water line by using a ruler, thereby obtaining the precision of a center line of the nozzle, and adjusting the position of the nozzle according to the measured data.
The measuring tool is used for a heat treatment line of a south steel wide-thick plate factory from the year 2020, the use effect is good, potential safety hazards are effectively eliminated, meanwhile, the measuring time is shortened by 20 minutes, the overhaul operation efficiency is improved, the precision of a quenching machine is improved, the primary lattice rate of the quenching plate shape is improved to 95.3% from 89.8%, the annual production of the quenching plate is about 6 ten thousand tons, the buckling saving cost of a medium plate is 180 yuan/ton, the measuring and adjusting are carried out on the water curtain striking angle of a gap nozzle of the quenching machine by using the tool, the equipment precision of the quenching machine can be effectively improved, the qualification rate of the quenching plate shape is improved, 10000 tons of buckling steel plates can be reduced each year, and the prediction benefit is 180 x 10000=180 ten thousand yuan.
In addition to the embodiments described above, other embodiments of the invention are possible. All technical schemes formed by equivalent substitution or equivalent transformation fall within the protection scope of the invention.
Claims (7)
1. A quenching machine nozzle strike angle measuring tool is characterized in that: the method comprises the steps that a steel plate is adopted to manufacture an integrated steel plate head part (1) and a steel plate tail part (2), the steel plate head part (1) is rectangular, the steel plate tail part (2) is isosceles trapezoid, the distance between the upper bottom edge and the lower bottom edge is 1.5-2m, and the short edge of the steel plate head part (1) is equal in width with the lower bottom edge of the steel plate tail part (2) and is in alignment connection with the lower bottom edge; and uniformly smearing the measured grease on the isosceles trapezoid edge of the measuring tool, setting the roll gap of the quenching machine as the thickness of the measuring tool, and generating an obvious included angle by the grease after spraying water through the nozzle.
2. The quenching machine nozzle striking angle measuring tool according to claim 1, wherein: along the longitudinal direction of the steel plate head (1), the total length of the measuring tool is 10m.
3. The quenching machine nozzle striking angle measuring tool according to claim 1, wherein: the unevenness is less than 3mm/2m.
4. A manufacturing method of a quenching machine nozzle striking angle measuring tool is characterized in that: a quenching machine nozzle striking angle measuring tool applied to any one of claims 1 to 3, comprising the steps of:
s1, selecting a steel plate with a steel grade being wear-resistant steel;
s2, carrying out heat treatment on the steel plate, adopting high-temperature quenching at 900-910 ℃, and carrying out low-temperature tempering at 180-200 ℃ on the steel plate after quenching;
s3, flattening the steel plate after the heat treatment is finished, so that the unevenness is less than 3mm/2m;
s4, cutting the tail (2) of the steel plate into isosceles trapezoids with the length of 1.5-2 meters by adopting a flame cutting machine;
and S5, polishing the edge of the steel plate by adopting a polishing machine, so as to ensure the smoothness of the edge of the steel plate.
5. The method for manufacturing the quenching machine nozzle striking angle measuring tool according to claim 4, wherein: in the step S1, the steel plate specification is 120mm x 3200mm x 10000mm.
6. The application method of the quenching machine nozzle striking angle measuring tool is characterized by comprising the following steps of: the quenching machine nozzle striking angle measuring tool according to any one of claims 1 to 3 is used for simultaneously testing the striking angles of two edges by spraying water once, and specifically: the method comprises the steps of uniformly smearing measured grease on the isosceles trapezoid edge of a measuring tool, lifting the measuring tool to a rear roller way of a quenching machine by using a travelling crane after grease smearing, swinging the measuring tool at the middle position of the roller way by using a rear transverse moving device of the quenching machine, stopping the measuring tool after moving from the rear roller way of the quenching machine to the position of a gap nozzle of the quenching machine at a speed of 0.06-0.08m/s, setting the gap of the quenching machine to be the thickness of the measuring tool, testing a valve of the gap nozzle, setting the opening degree to be 30%, boiling water for 3min, generating an obvious included angle by the grease after spraying water by the nozzle, measuring the included angle between an upper water line and a lower water line by using a ruler, thereby obtaining the center line precision of the nozzle, and adjusting the position of the nozzle according to measured data.
7. The method for using the quenching machine nozzle striking angle measuring tool according to claim 6, wherein the method comprises the following steps: the thickness of the grease is 0.3-0.6mm, and the length of the grease is 1.5-2m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110529458.6A CN113375531B (en) | 2021-05-14 | 2021-05-14 | Quenching machine nozzle striking angle measuring tool and manufacturing method and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110529458.6A CN113375531B (en) | 2021-05-14 | 2021-05-14 | Quenching machine nozzle striking angle measuring tool and manufacturing method and using method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113375531A CN113375531A (en) | 2021-09-10 |
| CN113375531B true CN113375531B (en) | 2023-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110529458.6A Active CN113375531B (en) | 2021-05-14 | 2021-05-14 | Quenching machine nozzle striking angle measuring tool and manufacturing method and using method thereof |
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|---|---|
| CN113375531A (en) | 2021-09-10 |
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