CN103817484B - Restoring method used for single-tooth roller crushing mechanism of sintering machine - Google Patents
Restoring method used for single-tooth roller crushing mechanism of sintering machine Download PDFInfo
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- CN103817484B CN103817484B CN201410095701.8A CN201410095701A CN103817484B CN 103817484 B CN103817484 B CN 103817484B CN 201410095701 A CN201410095701 A CN 201410095701A CN 103817484 B CN103817484 B CN 103817484B
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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
- B23P6/00—Restoring or reconditioning objects
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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
- B23K9/00—Arc welding or cutting
- B23K9/013—Arc cutting, gouging, scarfing or desurfacing
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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
- B23K9/00—Arc welding or cutting
- B23K9/04—Welding for other purposes than joining, e.g. built-up welding
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- Crushing And Grinding (AREA)
Abstract
The invention discloses a restoring method of a star wheel mechanism of a single-tooth roller crushing machine used for sintering. The method includes the following steps that first, welding parameters are determined; second, the size of the single-tooth roller crushing mechanism to be restored is drawn, and the single-tooth roller crushing mechanism is wholly detached; third, a special tool for restoration is manufactured; fourth, star wheel roller teeth are restored; fifth, the star wheel roller face is restored. The restoring method of the star wheel mechanism can effectively solve the problems that under the severe high-temperature working condition of a single-tooth roller, the service life of workpieces on service is short, and the production and manufacture cycle of workpieces is long. The service life of the restored single-tooth roller crushing mechanism can be greatly prolonged, the input investment and the maintenance cost of the equipment are reduced, and the production operation rate is improved. The using effect of the single-tooth roller crushing mechanism in a sintering machine is improved to the maximum, and the method has good economic benefits and social benefits.
Description
Technical field
The present invention relates to a kind of reparation of crushing mechanism, more particularly to a kind of repairing for sintering machine single roll crusher structure
Compound recipe method.
Background technology
Single roll crusher is one of key equipment in steel mill's SINTERING PRODUCTION, and it is responsible for the broken task of sinter cake,
It is arranged on sintering machine afterbody, for crush it is sintered after, the bulk sintering deposit cake unloaded down from pallet crushes it
Into the appropriate particle size for meeting technological requirement, its operating temperature is up to 850 ~ 1000 DEG C, due to being chronically at high temperature, many dirt and bearing
In huge periodic shock load operation environment, and cross doses greatly, disintegrating machine easily weares and teares, more particularly to vulnerable part star-wheel
Part roller tooth and roll surface wearing, roller tooth part service life is only（3~5）Individual month.Because single roll crusher overall weight is big and
Dismounting is complicated, and during replacement cost, laborious, these all become the production of restriction sintering deposit, affect the factor of iron and steel output.For many years,
Traditional production solves the problems, such as abrasion, more using part one piece casting, alloy steel heat treatment, piece surface spraying, parts list
The processing methods such as face plating, although win initial success, but for some critical components, such as roller tooth of single-tooth-roller, roll surface etc., said method
Produce effects and little.
The content of the invention
The present invention is aiming at what the problems referred to above put forward, its objective is to provide a kind of process is simple, after reparation greatly
The service life of single-tooth roller is improved, the input cost and maintenance cost of equipment is reduced, and improves being used for for production operational availability
The restorative procedure of sintering machine single roll crusher structure.
For achieving the above object the technical scheme of present invention solution technical problem is：
For the restorative procedure of sintering machine single roll crusher structure, comprise the following steps：
1）, determine welding condition：According to being welded to connect for known star-wheel quality of parent material to be repaired and material for repairing
Property determines the concrete welding condition of wlding specification and welding manner；
2）, to the mapping of the size of single roll crusher structure to be repaired and integral demounting：It is first each to single-tooth roller to be repaired main
The mapping of the morpheme size at working position and assembling position, and standard test model is made, it is then broken to single-tooth roller to be repaired
Broken mechanism's integral demounting, most at last seven star-wheels from six square shafts（5）On unload and carry out removing surface rust cleaning；And with instrument carbon arc gas
Shoot off except fatigue layer and original layer；
3）, make reparation special tooling：Described special tooling includes hollow stent（10）The two ends on top are with respect to position
Put and be respectively fixedly connected with a pair of fixed dams（8）And by described fixed dam（8）Fixed positioner；
4）, star-wheel roller tooth reparation：
A, welding star-wheel roller tooth reparation skeleton：Star-wheel roller tooth to be repaired is erected at into step 3）The special tooling of making
Positioner on, using common welding rod, first in star-wheel roller tooth body to be repaired（1）Middle part at least weld one with star-wheel roller tooth
The upper skeleton that shaped upper part is adapted（11）；Again in the star-wheel roller tooth body（1）Head is along transverse tooth thickness longitudinal direction at least uniform welding three
The side skeleton that bar is adapted with the star-wheel roller tooth nose shape（12）；
B, welding star-wheel roller tooth reparation grid：Using common welding rod, in star-wheel roller tooth body to be repaired（1）On, and
Near described upper skeleton（11）Two sides are respectively welded grid（13）；Again in star-wheel roller tooth head per two side skeletons
（12）Between transverse weld side grid（14）；
C, filling antifriction alloy：Respectively in upper grid（13）With upper skeleton（11）In the space of formation, and in side grid
（14）With side skeleton（12）In the space for being formed, using interlayer welding manner, equal manual welding wear resistant alloy material（15）, i.e.,
3 ~ 5mm is welded using common welding rod, then with the antifriction alloy of corrosion-and high-temp-resistant build-up wear-resistant welding rod 8 ~ 10mm of built-up welding；
The Wear-resistant Treatment of d, outer surface：Need to be in star-wheel roller tooth two side surfaces, side skeletons（12）Outer face and easy mill
Damage position built-up welding corrosion-and high-temp-resistant build-up wear-resistant welding rod；And the work according to star-wheel roller tooth and the degree of wear determine that built-up welding is thick
Degree, and compared with the star-wheel roller tooth model for meeting overall dimensions requirement of well in advance at any time in weld deposit process, it is to avoid
Cause built-up welding working lining in uneven thickness；
5）, star-wheel roll surface reparation：In star-wheel roll surface（2）Upper built-up welding corrosion-and high-temp-resistant build-up wear-resistant welding rod；Thickness is 3
~ 5mm, needs to carry out welding when ensureing that star-wheel roll surface is turned to horizontal level by special tooling in weld deposit process；
Step 3）Described positioner is by technique axle（7）On be at least set with two end plates（6）；Adjacent end plate（6）Between set
There are some brace rods（9）Constitute, the end plate（6）Overall dimensions match with star-wheel axis hole to be repaired.
Other abration positions are also repaiied by the described restorative procedure for sintering machine single roll crusher structure including following
Multiple or exchonge step：
6）, main shaft position and both sides protective case to installing bearing and sealing ring（3）And backplate（4）The reparation of abrasion, weldering
Strip adoption common welding rod, notes retaining allowance, it is ensured that machining requirements during welding；
7）, replacing to both sides protective case 3 and backplate 4：
Serious wear, first composition detection is carried out in itself to wear-out part material, first drilling through powder carries out qualitative analyses and determines
Amount analysis, selects material production and processing consistent therewith, in protective case according to the material of detection（3）Tiny cone opening end and the above 15 ~
The circumferential area manual build up welding corrosion-and high-temp-resistant build-up wear-resistant welding rod of 25mm；Thickness is 3 ~ 5mm, in backplate（4）Near star-wheel
One end is from backplate（4）It is cylindrical to built-up welding corrosion-and high-temp-resistant build-up wear-resistant welding rod in the range of 70 ~ 80mm of center of circle direction；Thickness be 3 ~
5mm, after the completion of product morpheme size need to meet requirement.
The described restorative procedure for sintering machine single roll crusher structure, also including following to technique, size, hardness inspection
Test step：
8）, according to specification, the welding manner of the different wldings selected, by given technological parameter set up welding electric current,
Voltage, makes up to optimal welding process requirement；
9）, for replacing interlayers welding using common welding rod and using two kinds of wldings of corrosion-and high-temp-resistant build-up wear-resistant welding rod
Mode, strictly controls each layer of throat thickness, and one layer is checked for one layer per built-up welding with the instruments of inspection, to ensure to meet connection simultaneously
Intensity and antiwear characteristic；
10）, weld interpass temperature checked at 180 ~ 210 DEG C using infrared radiation thermometer, effective control welding deformation amount；
11）, to each repair or change after product size test, using pre-production inspection template ensure roller
, such as there is defective work in the uniformity of tooth outline size and the concordance of roll surface radian, come back to above-mentioned corresponding steps, until
Meet till requiring；
12）, using portable hardometer determine product Rockwell hardness, HRC average X_bar=58.3 HRC
Maximum Max=59.7, minimum M in=56.4, mean square root S=1.1, extreme difference R=3.3, hardness number scope exists
Within ± 2, hardness number inspection is qualified.
The present invention has the advantage that compared with prior art effect：
For the restorative procedure of sintering machine single roll crusher structure, operating mode of the energy effectively solving single-tooth roller in high temperature hostile
Under, military service workpiece short life and manufacture the problem of cycle length.Single roll crusher structure after reparation can greatly be improved and made
With the life-span, the input cost and maintenance cost of equipment are reduced, and improve production operational availability.Single-tooth roller is improved to greatest extent
Using effect of the crushing mechanism in sintering machine, with preferable economic benefit and social benefit.
Description of the drawings
The present invention is described in further detail with reference to the accompanying drawings and detailed description.
Fig. 1 is the assembling structure schematic diagram of single roll crusher structure of the present invention；
Fig. 2 is the A-A cross section structure diagrams of single roll crusher composition 1 of the present invention；
Fig. 3 is the structural representation of single roll crusher structure star-wheel reparation special tooling of the present invention；
Fig. 4 is the B-B cross section structure diagrams of single roll crusher composition 3 of the present invention；
Fig. 5 is that single roll crusher structure star-wheel roller tooth of the present invention repairs structural representation；
Fig. 6 is the C-C cross section structure diagrams of single roll crusher composition 5 of the present invention；
Fig. 7 is the D of single roll crusher composition 5 of the present invention to structural representation.
Major part in figure：Body 1, star-wheel roll surface 2, protective case 3, backplate 4, six square shafts 5, end plate 6, technique axle 7 is fixed
Baffle plate 8, brace rod 9, support 10, upper skeleton 11, side skeleton 12, upper grid 13, side grid 14, wear resistant alloy material 15.
Specific embodiment
With reference to specific embodiment, the present invention will be described in further detail, but protection scope of the present invention is not had
The embodiment of body is limited, and is defined by claims.In addition, with without prejudice on the premise of technical solution of the present invention, to this
Any change or change that bright made those of ordinary skill in the art easily realize fall within the claim model of the present invention
Within enclosing.
Embodiment 1
For the restorative procedure of sintering machine single roll crusher structure, comprise the following steps that：
1）, determine welding condition：Known single roll crusher star-wheel quality of parent material to be repaired is ZG40Cr, it is contemplated that female
The being welded to connect property and product actual working conditions of material material and material for repairing, its side is born and is washed away, and head and meets charge level
And extruding, friction reciprocal action are born in star-wheel roll surface position, wear and tear very fast under 850 ~ 1000 DEG C of high temperature, should adopt resistance to height
Temperature, anti-abrasive material to improve its heat-resisting, anti-wear performance, therefore from the resistance to height of the applicant's patent No. ZL201010531593.6
The corrosion-resistant build-up wear-resistant welding rod of temperature is that the surfacing welding of HP300-I models is used for this operating mode, deposited metals hardness：HRC60 ~ 68,
J507 gas shield welding wires are selected in prime coat or skeleton welding；HP300-I surfacing weldings are not allow for the impurity such as rust, greasy dirt, welding electrode
Front 350 DEG C of Jing of palpus, bakees 1 hour, using DC welder, error-polarity connection, can simultaneously be carried out with multiple stage DC welder, core diameter
φ 4mm specifications, welding condition is preferably adopted to be shown in Table 1；
2）, to the mapping of the size of single roll crusher structure to be repaired and integral demounting：It is first each to single-tooth roller to be repaired main
The mapping of the morpheme size at working position and assembling position simultaneously makes a record, while standard test model is made, then to be repaired
Multiple single roll crusher structure integral demounting, removes both sides protective case 3 and backplate 4, successively removes the dual fail-safe connection of nut and pin
Binding structure, the inner flange and 2 glands for making protective case 3 successively splits, and completes to dismantle the more difficult first step, afterwards successively
7 overall star-wheels are unloaded from six square shafts 5, removing surface greasy dirt, silt particle, rust cleaning is finally carried out；And use instrument carbon arc air gouging
Fatigue layer and original layer are removed, concrete thickness is depending on abrasion condition and original layer residual thickness；
3）, make reparation special tooling：Special tooling includes that the two ends relative position on the top of hollow stent 10 is solid respectively
Even a pair of fixed dams 8 and the positioner fixed by described fixed dam 8, described positioner on technique axle 7 by being at least set with
Two end plates 6；It is provided with some brace rods 9 between adjacent end plate 6 to constitute, the overall dimensions of the end plate 6 and star to be repaired
Take turns six square shaft holes to match；Support 10 is welded using angle steel, the height of support 10, need to ensure that positioner is inserted in after star-wheel axis hole
The frame height that over the mount 10 star-wheel can be rotated freely is advisable；
4）, star-wheel roller tooth reparation：
A, welding star-wheel roller tooth reparation skeleton：Star-wheel roller tooth to be repaired is erected at the positioner of the special tooling of making
On, it is therefore an objective to make star-wheel roller tooth body 1 often be soldered a row, rotate positioner and weld next row again, star-wheel roller tooth is kept as far as possible flat
Welding position puts welding, using J507 welding rods, first welds one with star-wheel roller tooth top at the middle part of star-wheel roller tooth body 1 to be repaired
The upper skeleton 11 that shape is adapted；Again in the head of star-wheel roller tooth body 1, along transverse tooth thickness longitudinal direction uniform welding three and the star-wheel roller
The side skeleton 12 that tooth nose shape is adapted；
B, welding star-wheel roller tooth reparation grid：Using common welding rod, on star-wheel roller tooth body 1 to be repaired, and lean on
The nearly described two sides of upper skeleton 11 are respectively perpendicular the upper grid 13 of welding；Again star-wheel roller tooth head per two side skeletons 12 it
Between transverse weld side grid 14, form sphere of movements for the elephants structure, grid is from 30# steel or 45# steel matter；
C, filling antifriction alloy：Respectively in the space that upper grid 13 and upper skeleton 11 are formed, and side grid 14 with
In the space that side skeleton 12 is formed, using interlayer welding manner, equal manual welding wear resistant alloy material 15, i.e., using common weldering
Bar welds 3 ~ 5mm, then with the antifriction alloy of corrosion-and high-temp-resistant build-up wear-resistant welding rod 8 ~ 10mm of built-up welding, it is desirable to two kinds of wldings are alternately welded
Connect, strictly control each layer of throat thickness, often weld one layer of inspection a layer thickness；Weld interpass temperature is controlled at 190 ~ 210 DEG C.
Grid 13 is concordant with the outer face of upper grid 13 with build-up wear-resistant alloy in upper skeleton 11 in built-up welding dimensional requirement, side grid 14 with
Build-up wear-resistant alloy is concordant with the outer face of side skeleton 12 in side skeleton 12；
The Wear-resistant Treatment of d, outer surface：According to the degree of wear that the working method of star-wheel roller tooth is determined, outer surface is wear-resisting
Process built-up welding thickness different, two side surfaces are squeezed and scouring force is big when star-wheel roller tooth works, and serious wear need to be in star-wheel roller
Two side surface built-up welding thickness of tooth are the wear-resistant alloy layer of 7 ~ 9mm or so, come real by the way of automatic surfacing or manual build up welding
To meet charge level, block or pie sintered material is carried out mainly by this position for the cross section that the existing, outer face of side skeleton 12 is formed
Hammering and broken, thus this cross section can automatic surfacing or manual build up welding 6mm or so wear-resistant alloy layer, meet charge level and prevent to play
The effect that shield and abrasion resistance properties are strengthened.Remaining top surface and back of the body charge level abrasion condition are relatively slight, and here part only needs automatic heap
The wear-resistant alloy layer of weldering or 2 ~ 4mm of manual build up welding or so can meet duty requirements.At any time with well in advance in weld deposit process
The roller tooth model for meeting overall dimensions requirement is compared, and the workpiece after the completion of built-up welding is consistent with model shape need, it is to avoid heap
Weldering variable thickness, causes working lining in uneven thickness；
5）, star-wheel roll surface reparation：During crusher in crushing, star-wheel roll surface 2 has different degrees of mild wear, is
Strengthen abrasion resistance, extend whole service life, the built-up welding corrosion-and high-temp-resistant build-up wear-resistant welding rod on star-wheel roll surface 2；Thickness
Depending on for 3 ~ 5mm or the reference degree of wear, when needing to ensure that star-wheel roll surface is turned to horizontal level by special tooling in weld deposit process
Carry out welding；
Reparation or exchonge step to other abration positions：
6）, main shaft position to installing bearing and sealing ring and both sides protective case 3 and the abrasion of backplate 4 reparation, welding rod adopts
With common welding rod, note retaining allowance during welding, it is ensured that machining requirements；
7）, replacing to both sides protective case 3 and backplate 4：
What serious wear need to be changed, first composition detection is carried out in itself to wear-out part material, first drilling through powder carries out qualitative point
Analysis and quantitative analyses, qualitative analyses original protective case and guard plate material contain C, Si, Mn composition, then are determined using chemical analysis method
C content be 0.17, Si contents for 0.29, Mn contents be 1.55, S contents be 0.004, P content is 0.016, protective case 3 and backplate
4 select material production and processing consistent therewith according to the material of detection, in protective case（3）15 ~ 25mm's of tiny cone opening end and the above
Circle ring area manual build up welding corrosion-and high-temp-resistant build-up wear-resistant welding rod；Thickness is 3 ~ 5mm, in backplate 4 near the self preservation of star-wheel one end
Plate 4 is cylindrical to built-up welding corrosion-and high-temp-resistant build-up wear-resistant welding rod in the range of 70 ~ 80mm of center of circle direction；Thickness is 3 ~ 5mm, after the completion of
Product morpheme size need to meet requirement；
To technique, size, Hardness Surveillance step：
8）, according to select different wldings specification, welding manner, by table 1 give technological parameter set up welding electricity
Stream, voltage, make up to optimal welding process requirement；
9）, for replacing interlayers welding using common welding rod and using two kinds of wldings of corrosion-and high-temp-resistant build-up wear-resistant welding rod
Mode, strictly controls each layer of throat thickness, and one layer is checked for one layer per built-up welding with the instruments of inspection, to ensure to meet connection simultaneously
Intensity and antiwear characteristic；
10）, weld interpass temperature checked at 180 ~ 210 DEG C using infrared radiation thermometer, effective control welding deformation amount；
11）, to each repair or change after product size test, using pre-production inspection template ensure roller
, such as there is defective work in the uniformity of tooth outline size and the concordance of roll surface radian, come back to above-mentioned corresponding steps, until
Meet till requiring；
12）, using portable hardometer determine product Rockwell hardness, HRC average X_bar=58.3 HRC
Maximum Max=59.7, minimum M in=56.4, mean square root S=1.1, extreme difference R=3.3, hardness number scope exists
Within ± 2, hardness number inspection is qualified.
Described common welding rod is J507 welding rods；Described corrosion-and high-temp-resistant build-up wear-resistant welding rod is the applicant's patent
The welding rod of number ZL201010531593.6.
By step 2）The assembling morpheme size and assembling drawing for measuring carries out final assembly to the star-wheel mechanism after reparation, and
It is smooth to product inspection, the face of weld by the way of set pattern range estimation, underproof welding bead is rejected with carbon arc air gouging, with pressure
Contracting air cleans out welding bead, is repaired in time by repair welding, and finally spray painting is finished product.
Claims (2)
1. the restorative procedure of sintering machine single roll crusher structure is used for, it is characterised in that：Comprise the following steps：
1）, determine welding condition：It is true with the being welded to connect property of material for repairing according to known star-wheel quality of parent material to be repaired
Determine the concrete welding condition of wlding specification and welding manner；
2）, to the mapping of the size of single roll crusher structure to be repaired and integral demounting：First to each groundwork of single-tooth roller to be repaired
The mapping of the morpheme size at position and assembling position, and standard test model is made, then to single roll crusher to be repaired
Structure integral demounting, most at last seven star-wheels from six square shafts（5）On unload and carry out removing surface rust cleaning；And gone with instrument carbon arc air gouging
Except fatigue layer and original layer；
3）, make reparation special tooling：Described special tooling includes hollow stent（10）The two ends relative position on top point
Gu Lian not a pair of fixed dams（8）And by described fixed dam（8）Fixed positioner；
4）, star-wheel roller tooth reparation：
A, welding star-wheel roller tooth reparation skeleton：Star-wheel roller tooth to be repaired is erected at into step 3）The special tooling of making turn
On tire, using common welding rod, first in star-wheel roller tooth body to be repaired（1）Middle part at least weld one with star-wheel roller tooth top
The upper skeleton that shape is adapted（11）；Again in the star-wheel roller tooth body（1）Head along transverse tooth thickness longitudinal direction at least uniform welding three with
The side skeleton (12) that the star-wheel roller tooth nose shape is adapted；
B, welding star-wheel roller tooth reparation grid：Using common welding rod, in star-wheel roller tooth body to be repaired（1）On, and it is close
Described upper skeleton（11）Two sides are respectively welded grid（13）；Again in star-wheel roller tooth head per two side skeletons（12）It
Between transverse weld side grid（14）；
C, filling antifriction alloy：Respectively in upper grid（13）With upper skeleton（11）In the space of formation, and in side grid（14）
With side skeleton（12）In the space for being formed, using interlayer welding manner, equal manual welding wear resistant alloy material（15）, that is, adopt
Common welding rod welds 3 ~ 5mm, then with the antifriction alloy of corrosion-and high-temp-resistant build-up wear-resistant welding rod 8 ~ 10mm of built-up welding；
The Wear-resistant Treatment of d, outer surface：Need to be in star-wheel roller tooth two side surfaces, side skeletons（12）Outer face and portion easy to wear
Position built-up welding corrosion-and high-temp-resistant build-up wear-resistant welding rod；And the work according to star-wheel roller tooth and the degree of wear determine built-up welding thickness, and
Compared with the star-wheel roller tooth model for meeting overall dimensions requirement of well in advance at any time in weld deposit process, it is to avoid cause heap
It is in uneven thickness that welder makees layer；
5）, star-wheel roll surface reparation：In star-wheel roll surface（2）Upper built-up welding corrosion-and high-temp-resistant build-up wear-resistant welding rod；Thickness be 3 ~
5mm, needs to carry out welding when ensureing that star-wheel roll surface is turned to horizontal level by special tooling in weld deposit process；
Also include following reparations or exchonge step to other abration positions：
6）, main shaft position and both sides protective case to installing bearing and sealing ring（3）And backplate（4）The reparation of abrasion, welding rod is adopted
With common welding rod, note retaining allowance during welding, it is ensured that machining requirements；
7）, replacing to both sides protective case 3 and backplate 4：
Serious wear, first composition detection is carried out in itself to wear-out part material, first drilling through powder carries out qualitative analyses and quantitative point
Analysis, selects material production and processing consistent therewith, in protective case according to the material of detection（3）15 ~ 25mm of tiny cone opening end and the above
Circumferential area manual build up welding corrosion-and high-temp-resistant build-up wear-resistant welding rod；Thickness is 3 ~ 5mm, in backplate（4）Near star-wheel one end
From backplate（4）It is cylindrical to built-up welding corrosion-and high-temp-resistant build-up wear-resistant welding rod in the range of 70 ~ 80mm of center of circle direction；Thickness is 3 ~ 5mm,
After the completion of product morpheme size need to meet requirement；
Also include following to technique, size, Hardness Surveillance step：
8）, according to specification, the welding manner of the different wldings selected, set up electric current, the voltage of welding by given technological parameter,
Make up to optimal welding process requirement；
9）, for replacing interlayer welding sides using common welding rod and using two kinds of wldings of corrosion-and high-temp-resistant build-up wear-resistant welding rod
Formula, strictly controls each layer of throat thickness, and one layer is checked for one layer per built-up welding with the instruments of inspection, strong to ensure satisfaction connection simultaneously
Degree and antiwear characteristic；
10）, weld interpass temperature checked at 180 ~ 210 DEG C using infrared radiation thermometer, effective control welding deformation amount；
11）, to each repair or change after product size test, using pre-production inspection template ensure roller tooth outside
, such as there is defective work in the uniformity of shape size and the concordance of roll surface radian, come back to above-mentioned corresponding steps, until meeting
Till requirement；
12）, using portable hardometer determine product Rockwell hardness, HRC average X_bar=58.3 HRC maximum Max=59.7
, minimum M in=56.4, mean square root S=1.1, extreme difference R=3.3, hardness number scope is within ± 2, and hardness number inspection is qualified.
2. the restorative procedure for sintering machine single roll crusher structure according to claim 1, it is characterised in that：Step 3）
Described positioner is by technique axle（7）On be at least set with two end plates（6）；Adjacent end plate（6）Between be provided with some brace rods
（9）Constitute, the end plate（6）Overall dimensions match with star-wheel axis hole to be repaired.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410095701.8A CN103817484B (en) | 2014-03-17 | 2014-03-17 | Restoring method used for single-tooth roller crushing mechanism of sintering machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410095701.8A CN103817484B (en) | 2014-03-17 | 2014-03-17 | Restoring method used for single-tooth roller crushing mechanism of sintering machine |
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| CN103817484A CN103817484A (en) | 2014-05-28 |
| CN103817484B true CN103817484B (en) | 2017-05-17 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104476096B (en) * | 2014-10-27 | 2016-08-24 | 沈阳黎明航空发动机(集团)有限责任公司 | A kind of suspension ring restorative procedure of Middle casing |
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| CN109022745B (en) * | 2018-08-13 | 2020-06-19 | 安徽再制造工程设计中心有限公司 | Heat treatment device used after single-tooth roller surfacing |
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