CN108817843A - A kind of monodentate crusher renovation technique - Google Patents
A kind of monodentate crusher renovation technique Download PDFInfo
- Publication number
- CN108817843A CN108817843A CN201810917221.3A CN201810917221A CN108817843A CN 108817843 A CN108817843 A CN 108817843A CN 201810917221 A CN201810917221 A CN 201810917221A CN 108817843 A CN108817843 A CN 108817843A
- Authority
- CN
- China
- Prior art keywords
- welding
- monodentate
- roller tooth
- crusher
- built
- Prior art date
- 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.)
- Pending
Links
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
- B23P6/00—Restoring or reconditioning objects
-
- 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
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/3053—Fe as the principal constituent
- B23K35/308—Fe as the principal constituent with Cr as next major constituent
- B23K35/3086—Fe as the principal constituent with Cr as next major constituent containing Ni or Mn
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Crushing And Grinding (AREA)
Abstract
The present invention relates to monodentate crushers to repair field, and specifically a kind of monodentate crusher renovation technique, specific step is as follows：(1) prepare before repairing；(2) reparation-repair welding；(3) reparation-built-up welding；(4) machining assembling；There is good high-temperature wearable grinding abrasion and corrosion resistance due to joined the elements such as Nb, Mo using high-chromium cast iron-type open arc welding flux cored wire as layer；Using stress is discharged with fine and closely woven pattern cracking layer, it is beneficial to prevent layer large area and falls off, be widely used on blast-furnace equipment；Process of refinement is carried out respectively to bearing and sealing ring, roller tooth, roll shaft roller tooth, guarantee can reach higher standard after repair, and using effect is good, prolongs the service life.
Description
Technical field
The present invention relates to monodentate crushers to repair field, specifically a kind of monodentate crusher renovation technique.
Background technique
Monodentate crusher is the new product of the structural principle designed, designed development referring to U.S. hilllock clarke crusher.Discaling roll is broken
Broken machine has the advantages that small in size, reduction ratio is big, noise is low, structure is simple, easy to maintenance, the present 2PGC tooth in productivity ratio China
Kibbler roll productivity is -2 times high, and the material size that is broken is uniform, and degradation rate excessively is low, and easy to maintenance, overload protection is sensitive, peace
The features such as complete reliable.But monodentate crusher has seriously affected use there is a phenomenon where abrasion and leak after long-time uses
Efficiency is changed cost and excessively high, how rationally to be repaired as present problem to be solved.
Summary of the invention
To solve the above-mentioned problems, the present invention proposes a kind of monodentate crusher renovation technique.
A kind of monodentate crusher renovation technique, specific step is as follows：
(1) prepare before repairing：Bearing and sealing element are removed, is optionally cleaned or is replaced；
a：Bearing is needed to change to the transmission side of shaft end open gearwheel using shaft end drilling or sealing element is dismantled；
b：Cleaning greasy dirt, dirt mud simultaneously carry out processing of rust removing, detect and recorded the morpheme size of each component；
(2) reparation-repair welding：Roll shaft device water flowing is suppressed, and pressure is arranged in 0.7MPa, while pressure maintaining 15min, is checked
The leak at main shaft and each position of roller tooth or infiltration situation are simultaneously respectively processed；
c：The main shaft position of installation bearing and sealing ring carries out repair welding to it if any abrasion；
d：The abrasion of roller tooth position is lighter, and the water-tight place of the water pressure test directly can carry out built-up welding to roller tooth；
e：What leaking occurred in serious wear or the water pressure test, entire roller tooth carbon arc can be dug and be cut off, after remaking again
It is welded with main shaft；
(3) reparation-built-up welding：According to certain bead-welding technology to roller tooth and main shaft surface overlaying high-chromium cast iron-type open arc welded tube
Shape welding wire；
(4) machining assembling：The position of welding or built-up welding in need implement to weld and after reaching requirement, to main shaft bearing
And sealing position is machined out, and to guarantee the fitted position at each position, is finally assembled by drawing technical requirements.
The welding rod of repair welding in the c of the step (2) is E4303.
The percentage of the welding wire chemical component quality of built-up welding is in the step (3)：C, which accounts for 5%, Mn and accounts for 0.7%, Cr, to be accounted for
22%, Mo, which accounts for 5%, Nb and accounts for 7%, W and account for 2%, V and account for 1.2%, Si, accounts for 0.7%, surplus Fe.
The diameter of the welding wire of built-up welding is 2.8mm, welding current 275-375A in the step (3), and weldingvoltage is
28-32V。
Bead-welding technology in the step (3) is as follows：
3a：Roll shaft both ends are erected on two idler wheels before built-up welding, so that every row's roller tooth rotation roll shaft that welded welds again
Next row is connect, until being soldered；
3b：Roll shaft roller tooth carries out bottom welding, preheats first to pre- welding portion, preheating temperature >=150 DEG C, uses
2-4 DC welders carry out simultaneously, welding current 180-200A, and gage of wire is φ 4mm, along roller tooth width direction when built-up welding
It from top to bottom successively carries out, after front and back sides are soldered, then welds two sides；
3c：After roller tooth is soldered, one layer of wearing layer is thinly welded on roll shaft surface；
3d：When built-up welding, weld arc length should be as short as possible to prevent the alloying component scaling loss in welding wire, wire oscillation range limit
Make 3-4 times in gage of wire.
Welding in the 3b uses ER302 stainless steel welding stick, strong with the combination for improving roll shaft base material and resurfacing welding material
Degree, prevents heap postwelding wlding cracking and falls off, and the built-up welding of the side is with a thickness of 4-5mm.
Wearing layer in the 3c with a thickness of 2-3mm.
The 3d should also make slow cooling processing or heat treatment in postwelding.
The beneficial effects of the invention are as follows：Using high-chromium cast iron-type open arc welding flux cored wire as layer, due to joined Nb,
The elements such as Mo have good high-temperature wearable grinding abrasion and corrosion resistance；It is discharged using with fine and closely woven pattern cracking layer
Stress is beneficial to prevent layer large area and falls off, is widely used on blast-furnace equipment；To bearing and sealing ring, roller tooth, roll shaft roller
Tooth carries out process of refinement respectively, and guarantee can reach higher standard after repair, and using effect is good, prolongs the service life.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below it is right
The present invention is further described.
A kind of monodentate crusher renovation technique, specific step is as follows：
(2) prepare before repairing：Bearing and sealing element are removed, is optionally cleaned or is replaced；
a：Bearing is needed to change to the transmission side of shaft end open gearwheel using shaft end drilling or sealing element is dismantled；
b：Cleaning greasy dirt, dirt mud simultaneously carry out processing of rust removing, detect and recorded the morpheme size of each component；
(2) reparation-repair welding：Roll shaft device water flowing is suppressed, and pressure is arranged in 0.7MPa, while pressure maintaining 15min, is checked
The leak at main shaft and each position of roller tooth or infiltration situation are simultaneously respectively processed；
c：The main shaft position of installation bearing and sealing ring carries out repair welding to it if any abrasion；
d：The abrasion of roller tooth position is lighter, and the water-tight place of the water pressure test directly can carry out built-up welding to roller tooth；
e：What leaking occurred in serious wear or the water pressure test, entire roller tooth carbon arc can be dug and be cut off, after remaking again
It is welded with main shaft；
(3) reparation-built-up welding：According to certain bead-welding technology to roller tooth and main shaft surface overlaying high-chromium cast iron-type open arc welded tube
Shape welding wire；
(4) machining assembling：The position of welding or built-up welding in need implement to weld and after reaching requirement, to main shaft bearing
And sealing position is machined out, and to guarantee the fitted position at each position, is finally assembled by drawing technical requirements.
The welding rod of repair welding in the c of the step (2) is E4303, and it is mach to ensure to need to reserve machining allowance
It is required that.
The percentage of the welding wire chemical component quality of built-up welding is in the step (3)：C, which accounts for 5%, Mn and accounts for 0.7%, Cr, to be accounted for
22%, Mo, which accounts for 5%, Nb and accounts for 7%, W and account for 2%, V and account for 1.2%, Si, accounts for 0.7%, surplus Fe.
The diameter of the welding wire of built-up welding is 2.8mm, welding current 275-375A in the step (3), and weldingvoltage is
28-32V。
The hardness HRc for the overlay cladding that heap postwelding is formed in the step (3) is more than or equal to 60
Have good using high-chromium cast iron-type open arc welding flux cored wire as layer due to joined the elements such as Nb, Mo
High-temperature wearable grinding abrasion and corrosion resistance；Using stress is discharged with fine and closely woven pattern cracking layer, it is beneficial to prevent layer
Large area falls off, and is widely used on blast-furnace equipment.
Bead-welding technology in the step (3) is as follows：
3a：Roll shaft both ends are erected on two idler wheels before built-up welding, in order to weld each row's roller tooth, are often soldered a row,
Rotation roll shaft welds next row again, until being soldered；
3b：Roll shaft roller tooth carries out bottom welding, preheats first to pre- welding portion, preheating temperature >=150 DEG C can
It is carried out simultaneously with 2-4 DC welders, welding current 180-200A, gage of wire is φ 4mm, along roller tooth width side when built-up welding
To from top to bottom successively carrying out, after front and back sides are soldered, then two sides are welded；
3c：After roller tooth is soldered, one layer of wearing layer can be thinly welded on roll shaft surface and it is wear-resisting to improve its to protect main shaft
Property.
3d：When built-up welding, to prevent the alloying component scaling loss in welding wire, weld arc length should be as shorter as possible, wire oscillation model
Enclose 3-4 times for should being limited in gage of wire.
Process of refinement is carried out respectively to bearing and sealing ring, roller tooth, roll shaft roller tooth, guarantee can reach higher after repair
Standard, using effect is good, prolongs the service life.
Welding in the 3b uses ER302 stainless steel welding stick, strong with the combination for improving roll shaft base material and resurfacing welding material
Degree, prevents heap postwelding wlding cracking and falls off, and the built-up welding of the side is with a thickness of 4-5mm.
Wearing layer in the 3c with a thickness of 2-3mm.
The 3d should also make slow cooling processing or heat treatment in postwelding.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and what is described in the above embodiment and the description is only the present invention
Principle, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these variation and
Improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent
Object defines.
Claims (8)
1. a kind of monodentate crusher renovation technique, it is characterised in that：Specific step is as follows for it：
(1) prepare before repairing：Bearing and sealing element are removed, is optionally cleaned or is replaced；
a：Bearing is needed to change to the transmission side of shaft end open gearwheel using shaft end drilling or sealing element is dismantled；
b：Cleaning greasy dirt, dirt mud simultaneously carry out processing of rust removing, detect and recorded the morpheme size of each component；
(2) reparation-repair welding：Roll shaft device water flowing is suppressed, and pressure is arranged in 0.7MPa, while pressure maintaining 15min, checks main shaft
And the leak or infiltration at each position of roller tooth and are respectively processed situation；
c：The main shaft position of installation bearing and sealing ring carries out repair welding to it if any abrasion；
d：The abrasion of roller tooth position is lighter, and the water-tight place of the water pressure test directly can carry out built-up welding to roller tooth；
e：What leaking occurred in serious wear or the water pressure test, entire roller tooth carbon arc can be dug and be cut off, after remaking again with master
Axis welding；
(3) reparation-built-up welding：Roller tooth and main shaft surface overlaying high-chromium cast iron-type open arc welding tubulose are welded according to certain bead-welding technology
Silk；
(4) machining assembling：The position of welding or built-up welding in need implement to weld and after reaching requirement, to main shaft bearing and close
Envelope position is machined out, and to guarantee the fitted position at each position, is finally assembled by drawing technical requirements.
2. a kind of monodentate crusher renovation technique according to claim 1, it is characterised in that：In the c of the step (2)
Repair welding welding rod be E4303.
3. a kind of monodentate crusher renovation technique according to claim 1, it is characterised in that：Heap in the step (3)
The percentage of the welding wire chemical component quality of weldering is：C, which accounts for 5%, Mn and accounts for 0.7%, Cr and account for 22%, Mo and account for 5%, Nb and account for 7%, W, to be accounted for
2%, V accounts for 1.2%, Si and accounts for 0.7%, surplus Fe.
4. a kind of monodentate crusher renovation technique according to claim 1, it is characterised in that：Heap in the step (3)
The diameter of the welding wire of weldering is 2.8mm, welding current 275-375A, weldingvoltage 28-32V.
5. a kind of monodentate crusher renovation technique according to claim 1, it is characterised in that：In the step (3)
Bead-welding technology is as follows：
3a：Roll shaft both ends are erected on two idler wheels before built-up welding, so that every row's roller tooth rotation roll shaft that welded welds down again
One row, until being soldered；
3b：Roll shaft roller tooth carries out bottom welding, preheats first to pre- welding portion, preheating temperature >=150 DEG C, with 2-4
Platform DC welder carries out simultaneously, welding current 180-200A, and gage of wire is φ 4mm, along roller tooth width direction by upper when built-up welding
It is successively carried out under and, after front and back sides are soldered, then welds two sides；
3c：After roller tooth is soldered, one layer of wearing layer is thinly welded on roll shaft surface；
3d：When built-up welding, weld arc length should be as short as possible to prevent the alloying component scaling loss in welding wire, and wire oscillation scope limitation exists
3-4 times of gage of wire.
6. a kind of monodentate crusher renovation technique according to claim 5, it is characterised in that：Welding in the 3b is adopted
It is prevented heap postwelding wlding cracking to be improved the bond strength of roll shaft base material and resurfacing welding material with ER302 stainless steel welding stick and taken off
It falls, the built-up welding of the side is with a thickness of 4-5mm.
7. a kind of monodentate crusher renovation technique according to claim 5, it is characterised in that：Wearing layer in the 3c
With a thickness of 2-3mm.
8. a kind of monodentate crusher renovation technique according to claim 5, it is characterised in that：The 3d is also answered in postwelding
Make slow cooling processing or heat treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810917221.3A CN108817843A (en) | 2018-08-13 | 2018-08-13 | A kind of monodentate crusher renovation technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810917221.3A CN108817843A (en) | 2018-08-13 | 2018-08-13 | A kind of monodentate crusher renovation technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108817843A true CN108817843A (en) | 2018-11-16 |
Family
ID=64153177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810917221.3A Pending CN108817843A (en) | 2018-08-13 | 2018-08-13 | A kind of monodentate crusher renovation technique |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108817843A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109719457A (en) * | 2019-03-13 | 2019-05-07 | 耿立朋 | A kind of sealing ring restorative procedure |
| CN110158079A (en) * | 2019-06-03 | 2019-08-23 | 湖北开明高新科技有限公司 | The single-tooth roller of crusher breaks tooth and spindle abrasion renovation technique |
| CN112846638A (en) * | 2021-01-20 | 2021-05-28 | 广东韶钢松山股份有限公司 | Repairing method of crusher roller teeth |
| CN113263053A (en) * | 2020-02-16 | 2021-08-17 | 晟通科技集团有限公司 | Repairing method for plate roller of foil rolling mill |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59141396A (en) * | 1983-01-31 | 1984-08-14 | Nippon Steel Corp | High chromium ferrous tube wire for submerged arc welding |
| CN1422973A (en) * | 2001-12-05 | 2003-06-11 | 威海三盾焊接材料工程有限公司 | High temperature and abrasive-particle wear resistant build-up welding alloy material |
| CN103817484A (en) * | 2014-03-17 | 2014-05-28 | 沈阳哈维尔表面工程技术有限公司 | Restoring method used for single-tooth roller crushing mechanism of sintering machine |
| CN105750691A (en) * | 2014-12-15 | 2016-07-13 | 重庆迅升机车配件有限公司 | Single toothed-roller bead-welding repairing technology |
| CN107052620A (en) * | 2017-03-31 | 2017-08-18 | 安徽再制造工程设计中心有限公司 | Built-up welding high-chromium cast iron-type open arc welding flux cored wire and its application method |
-
2018
- 2018-08-13 CN CN201810917221.3A patent/CN108817843A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59141396A (en) * | 1983-01-31 | 1984-08-14 | Nippon Steel Corp | High chromium ferrous tube wire for submerged arc welding |
| CN1422973A (en) * | 2001-12-05 | 2003-06-11 | 威海三盾焊接材料工程有限公司 | High temperature and abrasive-particle wear resistant build-up welding alloy material |
| CN103817484A (en) * | 2014-03-17 | 2014-05-28 | 沈阳哈维尔表面工程技术有限公司 | Restoring method used for single-tooth roller crushing mechanism of sintering machine |
| CN105750691A (en) * | 2014-12-15 | 2016-07-13 | 重庆迅升机车配件有限公司 | Single toothed-roller bead-welding repairing technology |
| CN107052620A (en) * | 2017-03-31 | 2017-08-18 | 安徽再制造工程设计中心有限公司 | Built-up welding high-chromium cast iron-type open arc welding flux cored wire and its application method |
Non-Patent Citations (1)
| Title |
|---|
| KILLPLL: "单齿辊焊破碎机修复方法", 《百度文库》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109719457A (en) * | 2019-03-13 | 2019-05-07 | 耿立朋 | A kind of sealing ring restorative procedure |
| CN110158079A (en) * | 2019-06-03 | 2019-08-23 | 湖北开明高新科技有限公司 | The single-tooth roller of crusher breaks tooth and spindle abrasion renovation technique |
| CN113263053A (en) * | 2020-02-16 | 2021-08-17 | 晟通科技集团有限公司 | Repairing method for plate roller of foil rolling mill |
| CN112846638A (en) * | 2021-01-20 | 2021-05-28 | 广东韶钢松山股份有限公司 | Repairing method of crusher roller teeth |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108817843A (en) | A kind of monodentate crusher renovation technique | |
| CN100450688C (en) | Thin-wall stainless steel double-layer and carbon steel base layer composite tube girth weld welding method | |
| CN105127562B (en) | Method for welding welded joint between stainless steel composite plate and austenitic stainless steel | |
| CN104227180B (en) | A kind of welding method of NM400 abrasion-resistant stee | |
| CN102489842B (en) | Argon tungsten-arc welding process for pearlite heat-resistant steel pipe and austenitic heat-resistant steel pipe | |
| US8845501B2 (en) | Process for producing a roll for supporting and conveying hot material, process for repairing a worn roll | |
| CN109590668A (en) | A kind of steam turbine cylinder sealing surface renovation technique | |
| CN109623099A (en) | Helical blade wearing layer alloy welding deposit technique | |
| CN100479940C (en) | Technology for repairing semi-steel roller with flux-core welding wire built-up welding | |
| CN104084750B (en) | Submerged arc welding restorative procedure after the wearing and tearing of alkaline compression roller | |
| CN107598351B (en) | Large-area plasma surfacing method for outer circle of Stellite cobalt-based alloy | |
| CN104858555A (en) | Pressure pipeline welding process | |
| CN102974916B (en) | HP series grinding roller open arc built-up welding slip-off preventing welding method | |
| CN110252463B (en) | Wear-resistant structure convenient to repair and preparation method thereof | |
| CN103481010A (en) | Novel full-automatic online cold welding repairing process for roll squeezers | |
| CN105665898B (en) | A kind of pearlitic heat resistant steel composite board Lincoln weld welding method | |
| CN110560844A (en) | Welding method of nickel-based material pipeline | |
| CN101890557B (en) | Welding process of megaton ethane compressor casing | |
| CN102189316A (en) | Submerged-arc welding overlaying repairing method for stainless steel hot rolled delivery roll | |
| CN103978292B (en) | Bimetal metallurgy multiple tube that four roads have welded and process thereof | |
| CN106695079A (en) | Welding method of double-metal composite pipe | |
| CN108788405A (en) | The tungsten argon arc welding method of austenitic heat-resistance steel | |
| CN101658986A (en) | Build-up welding rod for repairing Cr3 roller and build-up welding method | |
| CN114734125B (en) | Preheating-free welding method suitable for 500 HB-grade wear-resistant steel | |
| US20120294729A1 (en) | Cold metal transfer hardfacing of buckets |
Legal Events
| 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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181116 |
|
| RJ01 | Rejection of invention patent application after publication |