CN110814080A - PF line heat preservation device and method for improving scale peeling performance - Google Patents
PF line heat preservation device and method for improving scale peeling performance Download PDFInfo
- Publication number
- CN110814080A CN110814080A CN201911097555.1A CN201911097555A CN110814080A CN 110814080 A CN110814080 A CN 110814080A CN 201911097555 A CN201911097555 A CN 201911097555A CN 110814080 A CN110814080 A CN 110814080A
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- China
- Prior art keywords
- heat preservation
- line
- temperature
- monitoring system
- production line
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/04—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of bars or wire
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/74—Temperature control, e.g. by cooling or heating the rolls or the product
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/40—Making wire or rods for soldering or welding
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- 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
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/06—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires
- C21D8/065—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires of ferrous alloys
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
The invention discloses a PF line heat preservation device and a method for improving scale peeling performance, the device comprises a PF production line and a heat preservation corridor, the PF production line is arranged in the heat preservation corridor, the heat preservation corridor is of a semi-closed structure and comprises a top cover and two side walls, more than one auxiliary heating device is arranged on the side walls, more than one temperature measuring instrument is arranged on one side wall, and the temperature measuring instruments are connected to a process monitoring system. According to the invention, a semi-closed heat preservation corridor is formed near a PF wire collecting coil, an auxiliary heating device is used for heating according to the change of the environmental temperature, and wire rods are collected inside and stay at a constant temperature at different temperatures as required to generate different scale structures.
Description
Technical Field
The invention belongs to the technical field of ferrous metallurgy, and particularly relates to a PF wire heat preservation device and method for improving scale peeling performance.
Background
The wire rod hot rolling wire rod in the prior art adopts a production process of 'converter smelting-refining-continuous casting-controlled rolling-controlled cooling', and the product is used in important fields of mechanical equipment, household appliances, ships, automobiles, roads, bridges, oil wells and the like after being deeply processed at downstream.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a PF wire heat preservation device and a PF wire heat preservation method for improving scale stripping performance.
The invention is realized by the following technical scheme:
the utility model provides an improve PF line heat preservation device that cinder peeling performance, includes the PF production line, still includes the heat preservation vestibule, the PF production line sets up in the heat preservation vestibule, the heat preservation vestibule is semi-enclosed construction, includes top cap and both sides lateral wall set up more than one supplementary heating device on the lateral wall to set up more than one thermoscope on one of them side lateral wall, the thermoscope is connected to technology monitored control system.
Preferably, the auxiliary warming device is an electric heating wire.
Preferably, the PF production line further comprises a PF line C-shaped hook, and the PF line C-shaped hook is connected to a process monitoring system through a start-stop device.
A heat preservation method of a PF line for improving scale peeling performance comprises the following steps:
step 1) controlling a C-shaped hook of a PF line through a start-stop device, setting corresponding time in a process monitoring system, and ensuring that the PF line is not in contact with the outside within a specified time period and is not influenced by the external environment;
step 2), acquiring data in real time through a temperature measuring instrument, sending the data to a process monitoring system, and automatically adjusting the heating temperature through an auxiliary temperature increasing device according to the process requirements to meet the requirements of different oxide skin structures on different temperatures;
and 3) setting the operation start-stop process of the C-shaped hook of the PF line and the temperature in the heat preservation corridor in the process monitoring system, and carrying out artificial aging on the wire rods on the PF production line.
Preferably, the temperature of the artificial aging in the step 3) is 200-500 ℃, and the time is 0-30 min.
The invention has the following beneficial effects:
1. the influence of environmental temperature change on the product quality is eliminated, closed control of the cooling temperature after rolling is realized, and the fluctuation of the mechanical property and the oxide skin stripping performance of the same ring is reduced.
2. The heating and heat preservation device is added after the coil is collected, the temperature change rate after rolling can be effectively controlled, different heat preservation temperatures are adopted according to the oxide skin generation and transformation rules, the proportion and the structure of each component of the oxide scale are adjusted, and the requirements of different customers on the differentiation of the oxide skin of the wire rod are met.
3. By adjusting the residence time and temperature of the wire rod in the heat preservation device, the wire rod can be effectively subjected to aging, and the production cost of natural aging and artificial aging is saved.
Drawings
FIG. 1 is a schematic structural view of a PF line heat retention apparatus for improving scale peeling performance;
FIG. 2 is a schematic view of a PF production line;
in the figure: 1. a top cover; 2. a side wall; 3. PF line C type hook; 4. a wire rod; 5. an auxiliary warming device; 6. a temperature measuring instrument; 7. a process monitoring system; 8. a start-stop device; 9. PF production line.
Detailed Description
The invention is described in further detail below with reference to specific embodiments and with reference to the following drawings.
Example 1
The utility model provides an improve PF line heat preservation device of scale peeling performance, includes PF production line 9, as shown in figure 1, still includes the heat preservation vestibule, PF production line 9 sets up in the heat preservation vestibule, the heat preservation vestibule is semi-enclosed construction, including top cap 1 and both sides lateral wall 2 set up more than one supplementary heating device 5 on lateral wall 2 to set up more than one thermoscope 6 on one of them side lateral wall 2, thermoscope 6 is connected to technology monitored control system 7.
As shown in fig. 2, the PF production line 9 further includes a PF line C-shaped hook 3, and the PF line C-shaped hook 3 is connected to a process monitoring system 7 through a start/stop device 8.
The auxiliary warming device 5 may employ an electric heating wire.
The process monitoring system 7 may employ a programmable control system (PLC).
Example 2
The PF line heat preservation method for improving the scale stripping performance based on the device in the embodiment 1 comprises the following specific steps:
(1) the C-shaped hook 3 of the PF line is controlled by the start-stop device 8, corresponding time is set in the process monitoring system 7, and the PF production line 9 is ensured not to be in contact with the outside in a specified time period and is not influenced by the external environment.
(2) Data are collected in real time through the temperature measuring instrument 6 and sent to the process monitoring system 7, and the heating temperature is automatically adjusted through the auxiliary heating device 5 according to the process requirements, so that the requirements of different oxide skin structures on different temperatures are met.
(3) The operation starting and stopping process of the PF line C-shaped hook 3 and the temperature in the heat preservation corridor are set in the process monitoring system 7, and the wire rod 4 on the PF production line 9 is subjected to artificial aging (200-500 ℃ and 0-30 min).
Claims (5)
1. The utility model provides an improve PF line heat preservation device of scale stripping performance, includes the PF production line, its characterized in that still includes the heat preservation vestibule, the PF production line sets up in the heat preservation vestibule, the heat preservation vestibule is semi-enclosed construction, including top cap and both sides lateral wall set up more than one supplementary heating device on the lateral wall to set up more than one thermoscope on one of them side lateral wall, the thermoscope is connected to technology monitored control system.
2. The PF wire thermal insulating device for improving scale peeling performance of claim 1, wherein the auxiliary temperature increasing means is an electric heating wire.
3. The PF line thermal insulation device for improving scale stripping performance of claim 1, wherein the PF production line further comprises a PF line C-shaped hook, and the PF line C-shaped hook is connected to a process monitoring system through a start-stop device.
4. The heat preservation method of the PF wire heat preservation device for improving the scale peeling performance as claimed in claim 3, comprising the steps of:
step 1) controlling a C-shaped hook of a PF line through a start-stop device, setting corresponding time in a process monitoring system, and ensuring that the PF line is not in contact with the outside within a specified time period and is not influenced by the external environment;
step 2), acquiring data in real time through a temperature measuring instrument, sending the data to a process monitoring system, and automatically adjusting the heating temperature through an auxiliary temperature increasing device according to the process requirements to meet the requirements of different oxide skin structures on different temperatures;
and 3) setting the operation start-stop process of the C-shaped hook of the PF line and the temperature in the heat preservation corridor in the process monitoring system, and carrying out artificial aging on the wire rods on the PF production line.
5. The method for preserving heat of the PF line with improved scale stripping performance of claim 4, wherein the temperature of the artificial aging in the step 3) is 200-500 ℃ and the time is 0-30 min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911097555.1A CN110814080A (en) | 2019-11-12 | 2019-11-12 | PF line heat preservation device and method for improving scale peeling performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911097555.1A CN110814080A (en) | 2019-11-12 | 2019-11-12 | PF line heat preservation device and method for improving scale peeling performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110814080A true CN110814080A (en) | 2020-02-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911097555.1A Pending CN110814080A (en) | 2019-11-12 | 2019-11-12 | PF line heat preservation device and method for improving scale peeling performance |
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| CN (1) | CN110814080A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111570536A (en) * | 2020-04-16 | 2020-08-25 | 河钢股份有限公司 | Roller way heat-insulating cover with wire rod temperature homogenizing function and design method |
-
2019
- 2019-11-12 CN CN201911097555.1A patent/CN110814080A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111570536A (en) * | 2020-04-16 | 2020-08-25 | 河钢股份有限公司 | Roller way heat-insulating cover with wire rod temperature homogenizing function and design method |
| CN111570536B (en) * | 2020-04-16 | 2024-05-28 | 河钢股份有限公司 | Roller way heat preservation cover with wire rod temperature homogenizing function and design method |
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