CN109108516A - A kind of new roller bead-welding technology - Google Patents
A kind of new roller bead-welding technology Download PDFInfo
- Publication number
- CN109108516A CN109108516A CN201811345831.7A CN201811345831A CN109108516A CN 109108516 A CN109108516 A CN 109108516A CN 201811345831 A CN201811345831 A CN 201811345831A CN 109108516 A CN109108516 A CN 109108516A
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- China
- Prior art keywords
- welding
- pass
- built
- roll
- matrix
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
-
- 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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Abstract
The present invention provides a kind of new roller bead-welding technologies, layering built-up welding can be carried out using various material welding wire on roll, bottom built-up welding can merge convenient for welding with matrix, upper layer built-up welding is then working lining, the wear-resisting and impact resistance of roll can be effectively improved, it effectively improves the service life of roll pass and is convenient for pass machining, improve single slot steel transportation amount, effectively improve production efficiency and guarantee product surface quality.
Description
Technical field
The present invention relates to steel bar production technical field more particularly to a kind of new roller bead-welding technologies.
Background technique
The excellent special steel product such as bearing steel, spring steel, middle high-alloy steel requires stringent, Rolling Production to surface and inherent quality
It is higher to the quality requirement of roll in the process, especially roughing mills roll, by heavy reduction, large impact power and 1100 DEG C with
On high temperature, therefore the problems such as roll often occurs being cracked, lose flesh, serious fire check, stocking surface is caused pitted skin, crackle etc. occur
Serious quality problems need often to change roughing mill roll in production process, influence production efficiency.
Summary of the invention
The technical problem to be solved by the present invention is the present invention, which provides one kind, to roll in order to solve the deficiency of the prior art
Layering built-up welding is carried out using various material welding wire on roller, effectively improve the service life of roll pass and is convenient for pass machining, is mentioned
High list slot steel transportation amount, effectively improves production efficiency and guarantees a kind of new roller bead-welding technology of product surface quality.
The technical solution adopted by the present invention to solve the technical problems is: a kind of new roller bead-welding technology, for rolling
Roll pass is processed on roller matrix, it is necessary first to hole type roll groove is processed on matrix, the concave roll slot includes hole
The pass R arc at type groove bottom, the sidewall of pass positioned at pass slot bottom two sides and connecting hole type groove bottom and the sidewall of pass then includes such as
Lower procedure of processing:
A, substrate preheating；
B, bottom built-up welding is carried out in the pass slot bottom of hole type roll groove and pass R arc；
C, matrix is cooling；
D, upper layer built-up welding is carried out in the pass slot bottom of hole type roll groove and pass R arc；
E, side wall built-up welding is carried out on the sidewall of pass of hole type roll groove；
F, matrix is heat-treated；
G, the processing that turnery processing completes roll pass is carried out to the hole type roll groove on matrix.
Preferably, the bottom built-up welding uses the welding wire of 40-50HS hardness, and the upper layer built-up welding uses 65-75HS
The welding wire of hardness, the side wall built-up welding use the welding wire of 40-50HS hardness.
Preferably, the substrate preheating temperature is 200 DEG C ± 10 DEG C, and the matrix cooling temperature is 80 DEG C ± 10
℃。
Preferably, after matrix is is heated to 400 DEG C ± 10 DEG C and keeps the temperature 48 hours by the heat treatment, 50 are furnace-cooled to
℃±10℃。
When carrying out roll pass processing using above-mentioned technique, bottom built-up welding carries out bottoming heap using the welding wire of slightly lower hardness
Weldering can merge convenient for carrying out welding with matrix, then burn-on in bottom heap and continue the welding wire of built-up welding high rigidity, then can effectively improve
Heat-resisting, the wear-resisting and impact resistance of pass.And side wall built-up welding carries out built-up welding using the welding wire of slightly lower hardness, is to be directed to side wall only
It plays the effect of clamping rolled piece operation and designs, it, then can be effective using the welding wire of slightly lower hardness without excessively high mechanical performance
It is convenient for mechanical process.
The invention has the advantages that a kind of new roller bead-welding technology provided by the invention, it can be on roll using more
Kind material welding wire carries out layering built-up welding, and bottom built-up welding can be convenient for merge with matrix welding, and upper layer built-up welding is then working lining, can be effective
The wear-resisting and impact resistance for improving roll effectively improves the service life of roll pass and convenient for pass machining, the single slot of raising
Steel transportation amount effectively improves production efficiency and guarantees product surface quality.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the structural schematic diagram of the produced roll of bead-welding technology of the present invention.
Fig. 2 is the temperature curve of bead-welding technology of the present invention.
1 in figure, pass slot bottom 2, pass R arc 3, the sidewall of pass.
Specific embodiment
In conjunction with the accompanying drawings, the present invention is further explained in detail.These attached drawings are simplified schematic diagram, only with
Illustration illustrates basic structure of the invention, therefore it only shows the composition relevant to the invention.
A kind of new roller bead-welding technology as shown in Figure 2, is optimum embodiment of the present invention, for adding on roller substrate
Work goes out roll pass.Minimum temperature in Fig. 2 is room temperature.
Firstly the need of processing hole type roll groove on matrix.Concave roll slot includes pass slot bottom 1, is located at pass slot bottom
The pass R arc 3 of the sidewall of pass 2 of 1 two sides and connecting hole type groove bottom 1 and the sidewall of pass 2.
Then include following procedure of processing:
A, substrate preheating, substrate preheating temperature are 200 DEG C ± 10 DEG C；
B, bottom built-up welding is carried out in the pass slot bottom 1 of hole type roll groove and pass R arc 3, bottom built-up welding is hard using 40-50HS
The welding wire of degree；
C, matrix is cooling, and matrix cooling temperature is 80 DEG C ± 10 DEG C；
D, upper layer built-up welding is carried out in the pass slot bottom 1 of hole type roll groove and pass R arc 3, upper layer built-up welding is hard using 65-75HS
The welding wire of degree；
E, side wall built-up welding is carried out on the sidewall of pass 2 of hole type roll groove, side wall built-up welding uses the weldering of 40-50HS hardness
Silk；
F, matrix is heat-treated, i.e., after being heated to 400 DEG C ± 10 DEG C by matrix and keep the temperature 48 hours, is furnace-cooled to 50
℃±10℃；
G, the processing that turnery processing completes roll pass is carried out to the hole type roll groove on matrix.
It is processable to produce surfacing roll as shown in Figure 1, including matrix using above-mentioned bead-welding technology, have on matrix
There is hole type roll groove, the hole type roll groove includes pass slot bottom 1, the sidewall of pass 2 positioned at 1 two sides of pass slot bottom and connection
The pass R arc 3 of pass slot bottom 1 and the sidewall of pass 2.
Successively heap is welded with two layers of welding wire from the inside to the outside on pass slot bottom 1 and pass R arc 3.Two layers of welding wire is respectively position
The welding wire of welding wire in the 40-50HS hardness of internal layer and the 65-75 hardness positioned at outer layer.The welding wire hardness of internal layer is lower, can be just
It is merged in carrying out welding with matrix, the welding wire hardness of outer layer is higher, then effectively increases the resistance to of pass slot bottom 1 and pass R arc 3
Hot, wear-resisting and impact resistance.Heap is welded with and is located at internal layer on pass slot bottom 1 and pass R arc 3 on the sidewall of pass 2
The welding wire of welding wire same rigidity.Since the sidewall of pass 2 only plays clamping rolled piece operation, it is not necessarily to higher hardness, it can on the sidewall of pass 2
Using the welding wire compared with soft, convenient for machining, effectively save cost.
When carrying out roll pass built-up welding processing to roll, bottom built-up welding carries out bottoming heap using the welding wire of slightly lower hardness
Weldering can merge convenient for carrying out welding with matrix, then burn-on in bottom heap and continue the welding wire of built-up welding high rigidity, then can effectively improve
Heat-resisting, the wear-resisting and impact resistance of pass, effectively improves the mechanical performance of surfacing roll, prolongs the service life, and reduces and shuts down
The maintenance and repair number of roll change.And side wall built-up welding carries out built-up welding using the welding wire of slightly lower hardness, is only to play clamping for side wall
The effect of rolled piece operation and design, without excessively high mechanical performance, using the welding wire of slightly lower hardness, then can effectively be convenient for
Mechanical process.
A kind of new roller bead-welding technology being designed in this way, can carry out layering heap using various material welding wire on roll
Pass machining is convenient in weldering, and bottom built-up welding can be convenient for merging with matrix welding, and upper layer built-up welding is then working lining, can effectively improve and roll
The wear-resisting and impact resistance of roller effectively improves the service life of roll pass, reduces rolling in roughing mills in production process
Roller roll change maintenance, effectively improves production efficiency.The processing is simple for the surfacing roll produced using this technique, and single slot can be improved and cross steel
Amount, single slot steel transportation amount can be improved 1 times or more relative to traditional roll, and can guarantee special steel product surface quality, and this
Design can be promoted the use of on the roughing mills on similar special steel production line of bar, applied widely.
Taking the above-mentioned ideal embodiment according to the present invention as inspiration, through the above description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property range is not limited to the contents of the specification, it is necessary to which the technical scope thereof is determined according to the scope of the claim.
Claims (4)
1. a kind of new roller bead-welding technology, for processing roll pass on roller substrate, it is characterised in that: firstly the need of
Hole type roll groove is processed on matrix, the concave roll slot includes pass slot bottom (1), is located at pass slot bottom (1) two sides
The pass R arc (3) of the sidewall of pass (2) and connecting hole type groove bottom (1) and the sidewall of pass (2) then includes following procedure of processing:
A, substrate preheating；
B, bottom built-up welding is carried out in the pass slot bottom (1) of hole type roll groove and pass R arc (3)；
C, matrix is cooling；
D, upper layer built-up welding is carried out in the pass slot bottom (1) of hole type roll groove and pass R arc (3)；
E, side wall built-up welding is carried out on the sidewall of pass (2) of hole type roll groove；
F, matrix is heat-treated；
G, the processing that turnery processing completes roll pass is carried out to the hole type roll groove on matrix.
2. a kind of new roller bead-welding technology as described in claim 1, it is characterised in that: the bottom built-up welding uses 40-
The welding wire of 50HS hardness, the upper layer built-up welding use the welding wire of 65-75HS hardness, and the side wall built-up welding uses 40-50HS
The welding wire of hardness.
3. a kind of new roller bead-welding technology as described in claim 1, it is characterised in that: the substrate preheating temperature is
200 DEG C ± 10 DEG C, the matrix cooling temperature is 80 DEG C ± 10 DEG C.
4. a kind of new roller bead-welding technology as described in claim 1, it is characterised in that: the heat treatment is to heat matrix
After being warming up to 400 DEG C ± 10 DEG C and keeping the temperature 48 hours, it is furnace-cooled to 50 DEG C ± 10 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811345831.7A CN109108516A (en) | 2018-11-13 | 2018-11-13 | A kind of new roller bead-welding technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811345831.7A CN109108516A (en) | 2018-11-13 | 2018-11-13 | A kind of new roller bead-welding technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109108516A true CN109108516A (en) | 2019-01-01 |
Family
ID=64853983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811345831.7A Pending CN109108516A (en) | 2018-11-13 | 2018-11-13 | A kind of new roller bead-welding technology |
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| Country | Link |
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| CN (1) | CN109108516A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111055078A (en) * | 2019-12-05 | 2020-04-24 | 邯郸钢铁集团有限责任公司 | Repairing process of back-up roll of cold-rolled plate rolling mill |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53119254A (en) * | 1977-03-28 | 1978-10-18 | Sumitomo Metal Ind Ltd | Repairing method for nodular graphite cast steel roll |
| EP0788993A4 (en) * | 1995-08-30 | 1999-02-10 | Nippon Steel Hardfacing | Roll for take-up equipment for hot rolling mill |
| CN201442009U (en) * | 2009-06-24 | 2010-04-28 | 鞍钢股份有限公司 | Section steel roll |
| CN105436665A (en) * | 2015-12-16 | 2016-03-30 | 秦皇岛鸿翔焊业有限公司 | Surfacing reconstructed layer of large hot-rolled supporting roll Cr4 and method for repairing roll |
| CN105728964A (en) * | 2014-12-09 | 2016-07-06 | 重庆金国凯畅机床厂 | Roller build-up welding technology |
| CN107052701A (en) * | 2017-03-31 | 2017-08-18 | 安徽再制造工程设计中心有限公司 | A kind of roll overlaying technique |
| CN108326462A (en) * | 2018-03-16 | 2018-07-27 | 王伟 | A kind of overlaying method of BDM roughing rollcogging-roll |
-
2018
- 2018-11-13 CN CN201811345831.7A patent/CN109108516A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53119254A (en) * | 1977-03-28 | 1978-10-18 | Sumitomo Metal Ind Ltd | Repairing method for nodular graphite cast steel roll |
| EP0788993A4 (en) * | 1995-08-30 | 1999-02-10 | Nippon Steel Hardfacing | Roll for take-up equipment for hot rolling mill |
| CN201442009U (en) * | 2009-06-24 | 2010-04-28 | 鞍钢股份有限公司 | Section steel roll |
| CN105728964A (en) * | 2014-12-09 | 2016-07-06 | 重庆金国凯畅机床厂 | Roller build-up welding technology |
| CN105436665A (en) * | 2015-12-16 | 2016-03-30 | 秦皇岛鸿翔焊业有限公司 | Surfacing reconstructed layer of large hot-rolled supporting roll Cr4 and method for repairing roll |
| CN107052701A (en) * | 2017-03-31 | 2017-08-18 | 安徽再制造工程设计中心有限公司 | A kind of roll overlaying technique |
| CN108326462A (en) * | 2018-03-16 | 2018-07-27 | 王伟 | A kind of overlaying method of BDM roughing rollcogging-roll |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111055078A (en) * | 2019-12-05 | 2020-04-24 | 邯郸钢铁集团有限责任公司 | Repairing process of back-up roll of cold-rolled plate rolling mill |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20190531 Address after: 213000 No. 1 Zhongwu Avenue, Changzhou City, Jiangsu Province Applicant after: Zhongtian Iron Steel Group Co.,Ltd. Applicant after: Changzhou Bangyi Iron and Steel Co., Ltd. Address before: 213000 No. 1 Zhongwu Avenue, Changzhou City, Jiangsu Province Applicant before: Zhongtian Iron Steel Group Co.,Ltd. |
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| TA01 | Transfer of patent application right | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190101 |
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| RJ01 | Rejection of invention patent application after publication |