CN105127686B - A kind of withdrawal straightening machine roller preparation technology - Google Patents
A kind of withdrawal straightening machine roller preparation technology Download PDFInfo
- Publication number
- CN105127686B CN105127686B CN201510610822.6A CN201510610822A CN105127686B CN 105127686 B CN105127686 B CN 105127686B CN 201510610822 A CN201510610822 A CN 201510610822A CN 105127686 B CN105127686 B CN 105127686B
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- welding
- roller
- straightening machine
- withdrawal straightening
- solder flux
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- 238000005516 engineering process Methods 0.000 title claims abstract description 14
- 238000002360 preparation method Methods 0.000 title claims abstract description 7
- 238000003466 welding Methods 0.000 claims abstract description 69
- 239000000956 alloy Substances 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 13
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 7
- 238000000137 annealing Methods 0.000 claims abstract description 7
- 239000000428 dust Substances 0.000 claims abstract description 6
- 229910001149 41xx steel Inorganic materials 0.000 claims abstract description 5
- 230000009972 noncorrosive effect Effects 0.000 claims abstract description 5
- 239000011324 bead Substances 0.000 claims abstract description 4
- 229910000679 solder Inorganic materials 0.000 claims description 16
- 230000004907 flux Effects 0.000 claims description 13
- 230000007547 defect Effects 0.000 claims description 8
- 239000002893 slag Substances 0.000 claims description 6
- 208000037656 Respiratory Sounds Diseases 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000010583 slow cooling Methods 0.000 claims description 3
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 2
- 201000001371 inclusion conjunctivitis Diseases 0.000 claims description 2
- 206010044325 trachoma Diseases 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 239000003082 abrasive agent Substances 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/04—Welding for other purposes than joining, e.g. built-up welding
- B23K9/044—Built-up welding on three-dimensional surfaces
- B23K9/046—Built-up welding on three-dimensional surfaces on surfaces of revolution
- B23K9/048—Built-up welding on three-dimensional surfaces on surfaces of revolution on cylindrical surfaces
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/235—Preliminary treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
- B21D3/02—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by rollers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Arc Welding In General (AREA)
Abstract
The invention discloses a kind of withdrawal straightening machine roller preparation technology, it is related to withdrawal straightening machine technical field.Including first making withdrawal straightening machine roller, roller material is high CrMo alloy materials, it is characterised in that pass through following steps：First derust, polish, roller surfaces must not have oil stain, dust or debris；Then submerged arc bead welding, one layer of built-up welding not only non-corrosive but also the high alloy wear-resistance material not being corroded are carried out in roller surfaces；Made annealing treatment again；It is finally machined to form.The present invention in one layer of roller surfaces built-up welding not only non-corrosive but also the high alloy wear-resistance material not being corroded, make withdrawal straightening machine roller reach required by combination property, bead-welding technology is scientific and reasonable.
Description
Technical field
The present invention relates to withdrawal straightening machine technical field.
Background technology
Withdrawal straightening machine roller abbreviation pulling-straightening roller, is an important part in bloom production, and the quality of its quality is directly affected
The quality of the steel billet produced, while also producing material impact to the production cost of enterprise.Because pulling-straightening roller is given birth in whole steel billet
In a critically important position during production, it is in the higher environment of temperature, and playing will be aligned steel billet and driven
Dynamic effect, it is therefore desirable to pulling-straightening roller has toughness, wearability and heat-resisting quantity well, mechanical performance to its material and
Case hardness requires also very high.It is general proper from higher alloy materials containing Cr and Mo such as 42CrMo or 35CrMo,
The mechanical performance of these materials is relatively good, existing higher toughness, and surface can reach higher hardness after heat treatment, but its is wear-resisting
Property is not high, and gets rusty easily and be corroded under the poor environment of steel mill's water quality, substantially reduces its life-span.Reality can not be met
The need for border is produced.
The content of the invention
It is an object of the invention to provide a kind of withdrawal straightening machine roller preparation technology, it is neither raw in one layer of roller surfaces built-up welding
The high alloy wear-resistance material that rust is not corroded again, makes withdrawal straightening machine roller reach required combination property, and bead-welding technology science is closed
Reason.
The present invention main technical schemes be：A kind of withdrawal straightening machine roller preparation technology, including first make withdrawal straightening machine roller, roller
Sub- material is high CrMo alloy materials, it is characterised in that pass through following steps：First derust, polish, roller surfaces there must not be oil
Stain, dust or debris；Then submerged arc bead welding, one layer of built-up welding not only non-corrosive but also the high alloy not being corroded are carried out in roller surfaces
High-abrasive material；Made annealing treatment again；It is finally machined to form；
Described bead-welding technology comprises the following steps：
1）Solder flux is dried；206 solder flux of solder flux；
2）Welding wire is dried；Welding wire 3Cr17NiMo welding wires, and be the continuous flux-cored wire of tubulose；
3）Roller is preheated：Withdrawal straightening machine roller is placed on carrying roller swivel mount, starts motor, makes roller baker in rotation
Heating, it is ensured that roller can thermally equivalent, when temperature is raised to 80 DEG C, be incubated 10-20 minute, then start weld；
4）Welding, welding requirements is as follows：
A, gage of wire Ф 4mm, welding current 400-500A, weldingvoltage 22-24V, speed of welding 40-50mm/min；
Eccentric throw（The distance of welding wire offset from roller vertical center line）20-30mm；Extension elongation 20-25mm；
B, roller surfaces must not have oil stain, dust or debris, the welding starting the arc and receipts arc laterally to be moved again after ensureing welding one week
It is dynamic, it is to avoid to lack weldering, solder skip；Notice that cleaning in time remains in the welding slag of roller surfaces during welding, prevent slag inclusion phenomenon, it is to avoid repeat
Welding；
C, postwelding ensure outside dimension than the big 5-6mm of size after processing；
5）Annealing：Heated after the completion of welding in electric furnace, be incubated at 600 DEG C -650 DEG C, then make roller slow
Cooling, cooling rate is maintained at 20-25 DEG C/h, prevents stress concentration from crackle, phenomenon of rupture occur；
6）Postwelding is processed：First roughing, such as find defect will built-up welding again, be then finished to, and be ground to the size of requirement.
It is preferred that, described high CrMo alloy materials are 42CrMo or 35CrMo steel alloys.
It is preferred that, it is described：
1）Solder flux is dried：206 solder flux are put into baking box, temperature is increased to 200-300 DEG C, in 100-150 DEG C of insulation
0.5-1.5 hours, prevent from producing the defects such as stomata, trachoma in welding process, take out stand-by；
2）Welding wire is dried：3Cr17NiMo welding wires are put into baking box, temperature is increased to 200-300 DEG C, are incubated 0.5-
1.5 hours, prevent from producing the defects such as stomata, crackle in welding process, take out stand-by.
The positive effect of the present invention is：The deficiency of prior art is overcome, it is neither raw in one layer of roller surfaces built-up welding
The high alloy wear-resistance material that rust is not corroded again, makes withdrawal straightening machine roller reach required combination property, and bead-welding technology science is closed
Reason.
Embodiment
Embodiment：
Withdrawal straightening machine roller preparation technology, including withdrawal straightening machine roller is first made, roller material is that 42CrMo or 35CrMo is closed
Jin Gang, by following steps：First derust, polish, roller surfaces must not have oil stain, dust or debris；Then enter in roller surfaces
Row submerged arc bead welding, one layer of built-up welding not only non-corrosive but also the high alloy wear-resistance material not being corroded；Made annealing treatment again；Most pass through afterwards
Machining is formed；
Described bead-welding technology comprises the following steps：
1）Solder flux is dried；206 solder flux of solder flux；
2）Welding wire is dried；Welding wire 3Cr17NiMo welding wires, and be the continuous flux-cored wire of tubulose（Prior art can make）；
3）Roller is preheated：Withdrawal straightening machine roller is placed on carrying roller swivel mount, starts motor, makes roller baker in rotation
Heating, it is ensured that roller can thermally equivalent, when temperature is raised to 80 DEG C, be incubated 10-20 minute, then start weld；
4）Welding, welding requirements is as follows：
A, gage of wire Ф 4mm, welding current 400-500A, weldingvoltage 22-24V, speed of welding 40-50mm/min；
Eccentric throw（The distance of welding wire offset from roller vertical center line）20-30mm；Extension elongation 20-25mm；
B, roller surfaces must not have oil stain, dust or debris, the welding starting the arc and receipts arc laterally to be moved again after ensureing welding one week
It is dynamic, it is to avoid to lack weldering, solder skip；Notice that cleaning in time remains in the welding slag of roller surfaces during welding, prevent slag inclusion phenomenon, it is to avoid repeat
Welding；
C, postwelding ensure outside dimension than the big 5-6mm of size after processing；
5）Annealing：Heated after the completion of welding in electric furnace, be incubated at 600 DEG C -650 DEG C, then make roller slow
Cooling, cooling rate is maintained at 20-25 DEG C/h, prevents stress concentration from crackle, phenomenon of rupture occur；
6）Postwelding is processed：First roughing, such as find defect will built-up welding again, be then finished to, and be ground to the size of requirement.
Meet manufacturing technique specification standard by Continuous Casting Rolls welding, the performance and result of test are as follows：
1st, the weld defect such as surface soldered pore-free, sand holes；
2nd, metallographic structure is uniform in the range of face of weld depth 3-5mm, without serious random phase phenomenon；
3rd, tested by case hardness, reach that HRC45-52 meets standard requirement, and the hardness number in the range of 0-20mm
Difference≤3；
4th, by onsite application steel transportation amount >=600,000 ton.
Claims (1)
1. a kind of withdrawal straightening machine roller preparation technology, including withdrawal straightening machine roller body is made, roller material is high CrMo alloy materials,
Characterized in that, by following steps：First derust, polish, roller surfaces must not have oil stain, dust or debris；Then in roller
Surface carries out submerged arc bead welding, one layer of built-up welding not only non-corrosive but also the high alloy wear-resistance material not being corroded；Made annealing treatment again；
It is finally machined to form；
Described bead-welding technology includes：
1）Solder flux is dried；206 solder flux of solder flux；
2）Welding wire prepares and dried；Welding wire 3Cr17NiMo welding wires, and be the continuous flux-cored wire of tubulose；
3）Roller is preheated：Withdrawal straightening machine roller is placed on carrying roller swivel mount, starts motor, roller is added in rotation with baker
Heat, it is ensured that roller can thermally equivalent, when temperature is raised to 80 DEG C, be incubated 10-20 minute, then start weld；
4）Welding, welding requirements is as follows：
A, gage of wire Ф 4mm, welding current 400-550A, weldingvoltage 22-24V, speed of welding 40-50mm/min；It is eccentric
Away from 20-30mm；Extension elongation 20-25mm；
B, the welding starting the arc and receive arc and ensure transverse shifting again after welding one week, it is to avoid lack weldering, solder skip；Cleaning in time is noted during welding
The welding slag of roller surfaces is remained in, slag inclusion phenomenon is prevented, it is to avoid repeats to weld；
C, postwelding ensure outside dimension than the big 5-6mm of size after processing；
Annealing：Heat in electric furnace, be incubated at 600 DEG C -650 DEG C after the completion of welding, then allow roller Slow cooling, drop
Warm speed is maintained at 20-25 DEG C/h, prevents stress concentration from crackle, phenomenon of rupture occur；
Postwelding is processed：First roughing, such as find defect will built-up welding again, be then finished to, and be ground to the size of requirement；
Described high CrMo alloy materials are 42CrMo or 35CrMo steel alloys；
Solder flux is dried：206 solder flux are put into baking box, temperature is increased to 200-300 DEG C, 0.5-1.5 is incubated at 100-150 DEG C
Hour, prevent from producing the defects such as stomata, trachoma in welding process, take out stand-by；
Welding wire is dried：3Cr17NiMo welding wires are put into baking box, temperature is increased to 200-300 DEG C, are incubated 0.5-1.5 hours,
Prevent from producing the defects such as stomata, crackle in welding process, take out stand-by；
Metallographic structure is uniform in the range of face of weld depth 3-5mm, without serious random phase phenomenon；Case hardness is tested, and is reached
HRC45-52, and hardness value difference≤3 in the range of 0-20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510610822.6A CN105127686B (en) | 2015-09-23 | 2015-09-23 | A kind of withdrawal straightening machine roller preparation technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510610822.6A CN105127686B (en) | 2015-09-23 | 2015-09-23 | A kind of withdrawal straightening machine roller preparation technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105127686A CN105127686A (en) | 2015-12-09 |
| CN105127686B true CN105127686B (en) | 2017-09-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510610822.6A Active CN105127686B (en) | 2015-09-23 | 2015-09-23 | A kind of withdrawal straightening machine roller preparation technology |
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| Country | Link |
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| CN (1) | CN105127686B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106670668A (en) * | 2016-12-05 | 2017-05-17 | 安徽兴林机械集团有限公司 | Surfacing process for anti-corrosion layer of anti-corrosion grinding roller |
| CN106670672A (en) * | 2016-12-05 | 2017-05-17 | 安徽兴林机械集团有限公司 | Low-temperature overlaying technology of pressure-resistant grinding roller |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101623688A (en) * | 2009-07-31 | 2010-01-13 | 大连新重集团有限公司 | High wear-resistant roller screen roll and build-up welding process |
| CN103316918A (en) * | 2013-05-11 | 2013-09-25 | 荆州恒隆汽车零部件制造有限公司 | Novel composite hot roller and manufacturing method thereof |
| CN104858013A (en) * | 2015-05-29 | 2015-08-26 | 四川鸿舰重型机械制造有限责任公司 | Composite roll skin of four-roll crusher and preparation process for composite roll skin |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080080974A1 (en) * | 2006-10-02 | 2008-04-03 | Jean Savoie | Annular gas turbine engine case and method of manufacturing |
| WO2013043881A1 (en) * | 2011-09-21 | 2013-03-28 | Medrad. Inc. | Continuous multi-fluid pump device, drive and actuating system and method |
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2015
- 2015-09-23 CN CN201510610822.6A patent/CN105127686B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101623688A (en) * | 2009-07-31 | 2010-01-13 | 大连新重集团有限公司 | High wear-resistant roller screen roll and build-up welding process |
| CN103316918A (en) * | 2013-05-11 | 2013-09-25 | 荆州恒隆汽车零部件制造有限公司 | Novel composite hot roller and manufacturing method thereof |
| CN104858013A (en) * | 2015-05-29 | 2015-08-26 | 四川鸿舰重型机械制造有限责任公司 | Composite roll skin of four-roll crusher and preparation process for composite roll skin |
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| Publication number | Publication date |
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| CN105127686A (en) | 2015-12-09 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| TA01 | Transfer of patent application right |
Effective date of registration: 20170817 Address after: 057450 No. 389 Xincheng Road, Handan, Hebei, Qiuxian Applicant after: Hebei strong metallurgical Heavy Industry Machinery Co., Ltd. Address before: 057450 Handan City, Qiuxian Province, Metro Road, No. 389 Industrial Zone, Hebei, Hebei Metallurgical Machinery Co., Ltd. Applicant before: Xing Lijie |
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