CN112846653A - High-hardness high-wear-resistance hot coiler furnace rotary drum and preparation method thereof - Google Patents
High-hardness high-wear-resistance hot coiler furnace rotary drum and preparation method thereof Download PDFInfo
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- CN112846653A CN112846653A CN202011591654.8A CN202011591654A CN112846653A CN 112846653 A CN112846653 A CN 112846653A CN 202011591654 A CN202011591654 A CN 202011591654A CN 112846653 A CN112846653 A CN 112846653A
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- wear
- rotary drum
- hardness
- drum
- resistant layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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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
- B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
- B21C47/28—Drums or other coil-holders
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
Abstract
A high-hardness high-wear-resistance hot coiling furnace rotary drum belongs to the field of metallurgy and comprises a rotary drum body, wherein a steel inlet is axially formed in the rotary drum, a wear-resistant layer is welded on the outer layer of the rotary drum body, the wear-resistant layer is made of high-chromium-nickel stainless steel, and the components of the wear-resistant layer are C (0.08% -0.30%), Cr (0-chromium-nickel): 18% -25%, Ni: 17 to 22 percent of Fe, and the balance of Fe. This application has improved rotary drum intensity and wearability at rotary drum surfacing wearing layer, improves the life of rotary drum.
Description
Technical Field
The invention belongs to the field of metallurgy, and relates to a high-hardness high-wear-resistance rotary drum and a preparation method thereof.
Background
The hot coiling furnace is a device commonly used in the metallurgical industry, the steckel mill is provided with two hot coiling furnaces at the inlet and the outlet of the steckel mill, and the hot coiling furnaces are used for coiling the strip steel in the rolling process and keeping the strip steel at a certain temperature so as to meet the rolling requirement. The hot coiling furnace is internally provided with a rotary drum which is fixedly supported on a furnace body supporting structural member by two bearing seats, the winding drum is provided with a steel inlet, when a steel plate needs to be coiled, the head of the strip steel is firstly guided into a notch of the steel inlet to be clamped, and then the winding drum is rotated to realize the coiling of the strip steel.
The rotary drum is generally integrally cast or manufactured by structural parts, the integrally cast rotary drum is high in price, and the repair difficulty is high after the rotary drum is damaged; steel used for the rotary drum made of the structural member is subjected to normalizing treatment, so that the hardness of the whole rotary drum is low (about 30 HRC), and the wear resistance is poor.
The hot coiling furnace coil rotary drum is in a high-temperature environment with the working temperature of about 900-. The strength of the rotary drum is enhanced by welding steel plate rib plates inside the rotary drum by some enterprises at present, and the service life of the rotary drum is prolonged, but the service life of the rotary drum cannot be prolonged for too long; enterprises also adopt an integral casting mode to manufacture the rotary drum, but the mode needs large-scale casting equipment, has high cost and difficulty, and cannot perform solution treatment on a large-scale workpiece after casting, thereby causing the defect of inherent cracks.
Disclosure of Invention
The invention discloses a high-hardness high-wear-resistance rotary drum, wherein a wear-resistant layer is welded on the surface of the rotary drum in a build-up mode, and the strength and the wear resistance of the rotary drum are improved.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a high-hardness high-wear-resistance hot coiling furnace rotary drum comprises a rotary drum body, wherein a steel inlet is axially formed in the rotary drum, a wear-resistant layer is welded on the outer layer of the rotary drum body, and the wear-resistant layer comprises 0.08-0.30% of C and Cr: 18% -25%, Ni: 17 to 22 percent of Fe, and the balance of Fe.
The technical scheme of the invention is further improved as follows: the manufacturing method of the high-hardness and high-wear-resistance rotary drum wear-resistant layer comprises the following steps:
(1) carrying out surface mechanical treatment on the rotary drum to ensure the surface smoothness;
(2) a high-hardness wear-resistant layer is welded on the surface of the steel plate in a surfacing mode, and the overall size is larger than the required size;
(3) turning the excess, and the diameter size after machining reaches the design requirement of the drawing.
The technical scheme of the invention is further improved as follows: the drum comprises an integral casting drum and a drum made of structural parts.
The technical scheme of the invention is further improved as follows: and (3) surfacing in the step (2) by using a welding wire.
The technical scheme of the invention is further improved as follows: and (3) surfacing the wear-resistant layer in the step (2) by adopting an arc deposition technology.
The technical scheme of the invention is further improved as follows: the thickness of the wear-resistant layer is 10-20 mm.
The technical scheme of the invention is further improved as follows: and (3) machining the wear-resistant layer in a turning mode.
Due to the adoption of the technical scheme, the invention has the technical effects that:
(1) the integral surfacing welding of the wear-resistant material with the thickness of 10-20mm on the surface of the integrally cast or manufactured drum of the structural member is beneficial to improving the strength (40-45 HRC) and the wear resistance of a working layer.
(2) The drum surface manufactured by the structural member is subjected to integral surfacing welding, and is processed into the required size of drawing paper after surfacing welding, so that the relation of deformation caused by welding in the assembling process to the circumferential flatness is not required to be considered, and the manufacturing difficulty is reduced.
Drawings
FIG. 1 is a schematic view of a high hardness and high wear resistance hot coiler furnace drum according to the present invention;
FIG. 2 is a left side view in section of FIG. 1;
the drum comprises a drum body 1, a drum body 2, a steel inlet 3 and a wear-resistant layer.
Detailed Description
The technical scheme of the invention is explained in detail in the following with the accompanying drawings.
As shown in figure 1 and figure 2, the high-hardness and high-wear-resistance hot-coiling furnace drum comprises a drum body 1, a steel inlet 2 is axially formed in the drum, and a wear-resistant layer 3 is welded on the outer layer of the drum body 1.
The manufacturing method of the high-hardness and high-wear-resistance rotary drum wear-resistant layer comprises the following steps:
(1) and carrying out surface mechanical treatment on the integrally cast or the drum made of the structural part to ensure the surface smoothness.
(2) An arc deposition technology is adopted to build up a layer of high-hardness wear-resistant layer on the surface of the steel tube, and the whole size is larger than the required diameter.
(3) And turning the excess by adopting a turning mode, wherein the diameter size after machining meets the design requirement of a drawing. The components of the wear-resistant layer are 0.08-0.30% of C, Cr: 18% -25%, Ni: 17-22 percent of the wear-resistant layer, and the balance of Fe, wherein the thickness of the wear-resistant layer is 10-20 mm.
After the manufacturing is finished, the wear-resistant material with the thickness of 10-20mm is integrally surfacing-welded on the surface of the integrally-cast or structural member manufactured rotary drum, the strength of a working layer is improved to 40-45HRC, the wear resistance is greatly improved, and the service life of the rotary drum is prolonged by 3 times.
Claims (7)
1. The utility model provides a hot batch furnace rotary drum of high rigidity high abrasion, includes rotary drum body (1), and the axial is opened on the rotary drum has into steel mouthful (2), its characterized in that: the outer layer of the drum body (1) is welded with a wear-resistant layer (3), and the wear-resistant layer comprises 0.08-0.30% of C, Cr: 18% -25%, Ni: 17 to 22 percent of Fe, and the balance of Fe.
2. The high-hardness high-wear-resistance hot coiler furnace drum according to claim 1, characterized in that: the manufacturing method of the high-hardness and high-wear-resistance rotary drum wear-resistant layer comprises the following steps:
(1) carrying out surface mechanical treatment on the rotary drum to ensure the surface smoothness;
(2) a high-hardness wear-resistant layer is welded on the surface of the steel plate in a surfacing mode, and the overall size is larger than the required size;
(3) turning the excess, and the diameter size after machining reaches the design requirement of the drawing.
3. The high-hardness high-wear-resistance hot coiler furnace drum according to claim 1, characterized in that: the drum comprises an integral casting drum and a drum made of structural parts.
4. A high hardness high wear resistant hot coiler furnace drum according to claim 2, characterized in that: and (3) surfacing in the step (2) by using a welding wire.
5. A high hardness high wear resistant hot coiler furnace drum according to claim 2, characterized in that: and (3) surfacing the wear-resistant layer in the step (2) by adopting an arc deposition technology.
6. The high-hardness high-wear-resistance hot coiler furnace drum according to claim 1, characterized in that: the thickness of the wear-resistant layer is 10-20 mm.
7. The high-hardness high-wear-resistance hot coiler furnace drum according to claim 1, characterized in that: and (3) machining the wear-resistant layer in a turning mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011591654.8A CN112846653A (en) | 2020-12-29 | 2020-12-29 | High-hardness high-wear-resistance hot coiler furnace rotary drum and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011591654.8A CN112846653A (en) | 2020-12-29 | 2020-12-29 | High-hardness high-wear-resistance hot coiler furnace rotary drum and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112846653A true CN112846653A (en) | 2021-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011591654.8A Pending CN112846653A (en) | 2020-12-29 | 2020-12-29 | High-hardness high-wear-resistance hot coiler furnace rotary drum and preparation method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN112846653A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1283679A (en) * | 1970-05-06 | 1972-08-02 | Wolfgang Wiedermann | Rotary drum furnace |
| JPS58138517A (en) * | 1982-02-13 | 1983-08-17 | Nippon Steel Corp | Method for coiling hot strip under high temperature |
| FR2685921A1 (en) * | 1992-01-08 | 1993-07-09 | Creusot Loire | Process for the manufacture of a toothed crown wheel of large size and toothed crown wheel obtained |
| CN1172460A (en) * | 1995-08-30 | 1998-02-04 | 日铁表面硬化株式会社 | Roll for take-up equipment for hot rolling mill |
| US6033626A (en) * | 1998-09-25 | 2000-03-07 | Kubota Corporation | Heat-resistant cast steel having high resistance to surface spalling |
| US20090139291A1 (en) * | 2007-11-29 | 2009-06-04 | Metso Lokomo Steels Oy | Method for manufacturing a coiler drum and a coiler drum |
| CN104066544A (en) * | 2012-01-31 | 2014-09-24 | 株式会社神户制钢所 | Mechanical part welded by weld overlay material and weld overlay metal |
| CN104634589A (en) * | 2015-02-11 | 2015-05-20 | 中信戴卡股份有限公司 | Rotary drum for simulating road |
| CN105385959A (en) * | 2015-10-29 | 2016-03-09 | 中钢集团邢台机械轧辊有限公司 | High-wear-resisting cold roll and manufacturing method thereof |
-
2020
- 2020-12-29 CN CN202011591654.8A patent/CN112846653A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1283679A (en) * | 1970-05-06 | 1972-08-02 | Wolfgang Wiedermann | Rotary drum furnace |
| JPS58138517A (en) * | 1982-02-13 | 1983-08-17 | Nippon Steel Corp | Method for coiling hot strip under high temperature |
| FR2685921A1 (en) * | 1992-01-08 | 1993-07-09 | Creusot Loire | Process for the manufacture of a toothed crown wheel of large size and toothed crown wheel obtained |
| CN1172460A (en) * | 1995-08-30 | 1998-02-04 | 日铁表面硬化株式会社 | Roll for take-up equipment for hot rolling mill |
| US6033626A (en) * | 1998-09-25 | 2000-03-07 | Kubota Corporation | Heat-resistant cast steel having high resistance to surface spalling |
| US20090139291A1 (en) * | 2007-11-29 | 2009-06-04 | Metso Lokomo Steels Oy | Method for manufacturing a coiler drum and a coiler drum |
| CN104066544A (en) * | 2012-01-31 | 2014-09-24 | 株式会社神户制钢所 | Mechanical part welded by weld overlay material and weld overlay metal |
| CN104634589A (en) * | 2015-02-11 | 2015-05-20 | 中信戴卡股份有限公司 | Rotary drum for simulating road |
| CN105385959A (en) * | 2015-10-29 | 2016-03-09 | 中钢集团邢台机械轧辊有限公司 | High-wear-resisting cold roll and manufacturing method thereof |
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