CN109108523A - A kind of grate plate renovation technique - Google Patents
A kind of grate plate renovation technique Download PDFInfo
- Publication number
- CN109108523A CN109108523A CN201810913952.0A CN201810913952A CN109108523A CN 109108523 A CN109108523 A CN 109108523A CN 201810913952 A CN201810913952 A CN 201810913952A CN 109108523 A CN109108523 A CN 109108523A
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- China
- Prior art keywords
- grate plate
- welding
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- account
- renovation technique
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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
- 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
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/40—Making wire or rods for soldering or welding
-
- 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
- B23K9/16—Arc welding or cutting making use of shielding gas
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Arc Welding In General (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The present invention relates to grate plate renovation technique field, specifically a kind of grate plate renovation technique, the specific steps of which are as follows: (1) goes spot；(2) reference；(3) it establishes；(4) it rigidly fixes；(5) it preheats；(6) built-up welding；(7) repair welding；It is added in alloy powder and contains two kinds of cobalt, nickel alloying elements, significantly improve performance under the worst hot case of common wear resistant alloy material, so that grate plate overlay cladding needs to meet the working conditions such as anxious heat, chilling and impact resistance between about 850 DEG C of high temperature, about 21 DEG C of low temperature, there is good wearability and impact resistance；It cannot stop in weld deposit process, the strike compared with great dynamics can be resisted by needing to heat repair welding again once stopping so that overlay surface is uniform；Tungsten particle, which is added, in isolation board layer makes isolation board be applicable in high-temperature work environment, and highest can bear 900 DEG C of operating temperatures, and hardness is also very high.
Description
Technical field
The present invention relates to grate plate renovation technique field, specifically a kind of grate plate renovation technique.
Background technique
Grate plate is one of main wear parts of single roll crusher, because its operating temperature is up to 800 DEG C or more, is held simultaneously
By biggish thermic load and shock loading, stress is complicated, serious wear.Heat-resistance abrasion-resistance alloy is carried out to grate plate using overlaying method
Pre- protection, can increase substantially grate plate wearability and service life.But welding material selection is extremely important when built-up welding, due to resistance to
Grinding welding wire has absolute predominance, mesh compared to traditional wear resistance electrode in the various aspects such as speed of welding, postwelding molding, deposition proportion of goods damageds
Before, most grate plate productions and maintenance company use abrasion-resistant welding wire comprehensively.It is especially needed in selection grate plate build-up wear-resistant welding wire
It is noted that.
Summary of the invention
To solve the above-mentioned problems, the present invention proposes a kind of grate plate renovation technique.
A kind of grate plate renovation technique, the specific steps of which are as follows:
(1) spot is gone: with metallic luster of the special grinding utensil polishing grate plate to inside exposing；
(2) the template object of reference of each side of grate plate reference: is cut according to drawing with sheet iron；
(3) it establishes: establishing several piece isolation board on grate plate surface and carry out moulding；
(4) rigidly fix: by two moulding, grate plate tail good, to be welded to tail and is symmetrically rigidly fixed；
(5) it preheats: grate plate and isolation board being preheated according to certain rule, are preheated to 850 DEG C；
(6) built-up welding: must not once be welded into alloy powder welding wire according to technique and stopped, until completing；
(7) repair welding repair welding: is needed in the case of two kinds: a: needing to utilize oxygen and acetylene when built-up welding midway stops repair welding again
It will need to be dried at repair welding to turn blue；
B: it needs to heat repair welding when occurring more than the big crackle of 1mm after grate plate is cooling.
The chemical component mass percent of isolation board in the step (3) are as follows: C, which accounts for 0.7%, Mn and accounts for 10%, Si, to be accounted for
1%, Ni, which accounts for 3%, Cr and accounts for 3%, W, accounts for 6%, surplus Fe.
The isolation board HRc is 58, and the isolation board reserves different built-up welding areas according to different abrading sections
With built-up welding thickness, maximum built-up welding thickness reaches 50mm.
The heating law of the step (5) is that every 10min heats up 50 DEG C.
The step (6) is repaired simultaneously by one group of grate plate, and when welding, each flat side of a hammer was divided into 4 sections, is successively welded one by one
It connects.
The technique of the step (6) are as follows: welding current 220-280A, weldingvoltage 22-28V, protective gas are pure two
Carbonoxide or pure argon, protective gas amount 20L/min, electrode extension 15-20mm, speed of welding 35cm/min, welding gun incline
80 degree of angle, current type are direct reflux.
The chemical component mass percent of the alloy powder welding wire of the step (6) are as follows: C account for 4%, 0.7%Mn account for, Si
It accounts for 0.7%, Cr and accounts for 10%, Mo and account for 7%, WC and account for 6%, Ni and account for 6%, Nb and account for 7%, W and account for 2%, V and account for 1.8%, Co and account for 1.2%, it is remaining
Amount is Fe.
The overlay cladding HRc of the alloy powder welding wire is 60-63.
Baking temperature and heating temperature in the step (7) need 350-400 DEG C or more recurrence weldering.
Contain two kinds of cobalt, nickel alloying elements the beneficial effects of the present invention are: being added in alloy powder, significantly improves common
Performance under the worst hot case of wear resistant alloy material, so that grate plate overlay cladding needs to meet between about 850 DEG C of high temperature, about 21 DEG C of low temperature
The working conditions such as anxious heat, chilling and impact resistance, there is good wearability and impact resistance；It cannot stop in weld deposit process,
It needs to heat repair welding again once stopping and can resist the strike compared with great dynamics so that overlay surface is uniform；It is added in isolation board layer
Tungsten particle makes isolation board be applicable in high-temperature work environment, and highest can bear 900 DEG C of operating temperatures, and hardness is also very high.
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 grate plate renovation technique, the specific steps of which are as follows:
(1) spot is gone: with metallic luster of the special grinding utensil polishing grate plate to inside exposing；
(2) the template object of reference of each side of grate plate reference: is cut according to drawing with sheet iron；
(3) it establishes: establishing several piece isolation board on grate plate surface and carry out moulding；
(4) rigidly fix: by two moulding, grate plate tail good, to be welded to tail and is symmetrically rigidly fixed；
(5) it preheats: grate plate and isolation board being preheated according to certain rule, are preheated to 850 DEG C；
(6) built-up welding: must not once be welded into alloy powder welding wire according to technique and stopped, until completing；
(7) repair welding repair welding: is needed in the case of two kinds: a: needing to utilize oxygen and acetylene when built-up welding midway stops repair welding again
It will need to be dried at repair welding to turn blue；
B: it needs to heat repair welding when occurring more than the big crackle of 1mm after grate plate is cooling.
The chemical component mass percent of isolation board in the step (3) are as follows: C, which accounts for 0.7%, Mn and accounts for 10%, Si, to be accounted for
1%, Ni, which accounts for 3%, Cr and accounts for 3%, W, accounts for 6%, surplus Fe.
Tungsten particle, which is added, in isolation board layer makes isolation board be applicable in high-temperature work environment, and highest can bear 900 DEG C of work temperature
Degree, hardness are also very high.
The isolation board HRc is 58, and the isolation board reserves different built-up welding areas according to different abrading sections
With built-up welding thickness, maximum built-up welding thickness reaches 50mm.
The heating law of the step (5) is that every 10min heats up 50 DEG C.
The step (6) is repaired simultaneously by one group of grate plate, and when welding, each flat side of a hammer was divided into 4 sections, is successively welded one by one
It connects.
The technique of the step (6) are as follows: welding current 220-280A, weldingvoltage 22-28V, protective gas are pure two
Carbonoxide or pure argon, protective gas amount 20L/min, electrode extension 15-20mm, speed of welding 35cm/min, welding gun incline
80 degree of angle, current type are direct reflux.
The chemical component mass percent of the alloy powder welding wire of the step (6) are as follows: C accounts for 4%, Mn and accounts for 0.7%, Si
It accounts for 0.7%, Cr and accounts for 10%, Mo and account for 7%, WC and account for 6%, Ni and account for 6%, Nb and account for 7%, W and account for 2%, V and account for 1.8%, Co and account for 1.2%, it is remaining
Amount is Fe.
It is added in alloy powder and contains two kinds of cobalt, nickel alloying elements, significantly improve the high temperature of common wear resistant alloy material
Performance under operating condition, so that grate plate overlay cladding needs to meet anxious heat, chilling and resistance to punching between about 850 DEG C of high temperature, about 21 DEG C of low temperature
Equal working conditions are hit, there is good wearability and impact resistance.
The overlay cladding HRc of the alloy powder welding wire is 60-63.
Baking temperature and heating temperature in the step (7) need 350-400 DEG C or more recurrence weldering.
The step (7) to stop in weld deposit process, needs to heat repair welding again once stopping, so that built-up welding
Layer surface is uniform, can resist the strike compared with great dynamics.
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 (9)
1. a kind of grate plate renovation technique, it is characterised in that: the specific steps of which are as follows:
(1) spot is gone: with metallic luster of the special grinding utensil polishing grate plate to inside exposing；
(2) the template object of reference of each side of grate plate reference: is cut according to drawing with sheet iron；
(3) it establishes: establishing several piece isolation board on grate plate surface and carry out moulding；
(4) rigidly fix: by two moulding, grate plate tail good, to be welded to tail and is symmetrically rigidly fixed；
(5) it preheats: grate plate and isolation board being preheated according to certain rule, are preheated to 850 DEG C；
(6) built-up welding: must not once be welded into alloy powder welding wire according to technique and stopped, until completing；
(7) repair welding: need repair welding in the case of two kinds: a: needing when built-up welding midway stops repair welding again need to using oxygen and acetylene
It wants to be dried at repair welding and turn blue；
B: it needs to heat repair welding when occurring more than the big crackle of 1mm after grate plate is cooling.
2. a kind of grate plate renovation technique according to claim 1, it is characterised in that: the isolation board in the step (3)
Chemical component mass percent are as follows: C, which accounts for 0.7%, Mn and accounts for 10%, Si and account for 1%, Ni and account for 3%, Cr and account for 3%, W, accounts for 6%, surplus
For Fe.
3. a kind of grate plate renovation technique according to claim 2, it is characterised in that: the isolation board HRc is 58, described
Isolation board according to different abrading sections, reserve different built-up welding area and built-up welding thickness, maximum built-up welding thickness reaches 50mm
?.
4. a kind of grate plate renovation technique according to claim 1, it is characterised in that: the heating law of the step (5)
It heats up 50 DEG C for every 10min.
5. a kind of grate plate renovation technique according to claim 1, it is characterised in that: the step (6) presses one group of grate plate
It repairs simultaneously, when welding, each flat side of a hammer was divided into 4 sections, successively welded one by one.
6. a kind of grate plate renovation technique according to claim 1, it is characterised in that: the technique of the step (6) are as follows: weldering
Connect electric current 220-280A, weldingvoltage 22-28V, protective gas be pure carbon dioxide or pure argon, protective gas amount 20L/min,
Electrode extension 15-20mm, speed of welding 35cm/min, 80 degree of welding gun inclination angle, current type are direct reflux.
7. a kind of grate plate renovation technique according to claim 1, it is characterised in that: the alloy powder of the step (6)
The chemical component mass percent of welding wire are as follows: C, which accounts for 4%, Mn and accounts for 0.7%, Si and account for 0.7%, Cr and account for 10%, Mo and account for 7%, WC, to be accounted for
6%, Ni, which accounts for 6%, Nb and accounts for 7%, W and account for 2%, V and account for 1.8%, Co, accounts for 1.2%, surplus Fe.
8. a kind of grate plate renovation technique according to claim 7, it is characterised in that: the built-up welding of the alloy powder welding wire
Layer HRc is 60-63.
9. a kind of grate plate renovation technique according to claim 1, it is characterised in that: the baking temperature in the step (7)
Degree and heating temperature need 350-400 DEG C or more recurrence weldering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810913952.0A CN109108523A (en) | 2018-08-13 | 2018-08-13 | A kind of grate plate renovation technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810913952.0A CN109108523A (en) | 2018-08-13 | 2018-08-13 | A kind of grate plate renovation technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109108523A true CN109108523A (en) | 2019-01-01 |
Family
ID=64853136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810913952.0A Pending CN109108523A (en) | 2018-08-13 | 2018-08-13 | A kind of grate plate renovation technique |
Country Status (1)
| Country | Link |
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| CN (1) | CN109108523A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110814632A (en) * | 2019-09-29 | 2020-02-21 | 广州黄船海洋工程有限公司 | Surfacing process method for cast steel anchor lip line type repair |
| CN112975055A (en) * | 2021-02-23 | 2021-06-18 | 广东韶钢工程技术有限公司 | Manufacturing method of composite grate plate body and composite grate plate body |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110814632A (en) * | 2019-09-29 | 2020-02-21 | 广州黄船海洋工程有限公司 | Surfacing process method for cast steel anchor lip line type repair |
| CN110814632B (en) * | 2019-09-29 | 2021-10-26 | 广州黄船海洋工程有限公司 | Surfacing process method for cast steel anchor lip line type repair |
| CN112975055A (en) * | 2021-02-23 | 2021-06-18 | 广东韶钢工程技术有限公司 | Manufacturing method of composite grate plate body and composite grate plate body |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190101 |
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