CN106555077B - A kind of laser repairing material of pelletizer die - Google Patents
A kind of laser repairing material of pelletizer die Download PDFInfo
- Publication number
- CN106555077B CN106555077B CN201510612578.7A CN201510612578A CN106555077B CN 106555077 B CN106555077 B CN 106555077B CN 201510612578 A CN201510612578 A CN 201510612578A CN 106555077 B CN106555077 B CN 106555077B
- Authority
- CN
- China
- Prior art keywords
- pelletizer die
- laser
- high temperature
- pelletizer
- cladding
- 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.)
- Active
Links
- 239000000463 material Substances 0.000 title claims abstract description 26
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 5
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 5
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 4
- 229910052742 iron Inorganic materials 0.000 claims abstract description 4
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 4
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 4
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 4
- 239000000203 mixture Substances 0.000 claims abstract description 3
- 238000000576 coating method Methods 0.000 claims description 19
- 230000008018 melting Effects 0.000 claims description 19
- 239000011248 coating agent Substances 0.000 claims description 17
- 238000002844 melting Methods 0.000 claims description 17
- 230000008439 repair process Effects 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 10
- 238000005253 cladding Methods 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 3
- 238000012387 aerosolization Methods 0.000 claims description 2
- 238000010309 melting process Methods 0.000 claims description 2
- 238000012216 screening Methods 0.000 claims description 2
- 239000000956 alloy Substances 0.000 abstract description 14
- 229910045601 alloy Inorganic materials 0.000 abstract description 14
- 238000007254 oxidation reaction Methods 0.000 abstract description 9
- 230000003647 oxidation Effects 0.000 abstract description 7
- 239000000758 substrate Substances 0.000 abstract description 5
- 239000013078 crystal Substances 0.000 abstract description 4
- 239000011159 matrix material Substances 0.000 abstract description 4
- 238000005728 strengthening Methods 0.000 abstract description 3
- 208000037656 Respiratory Sounds Diseases 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 238000001514 detection method Methods 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000009418 renovation Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004372 laser cladding Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000010742 number 1 fuel oil Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Other Surface Treatments For Metallic Materials (AREA)
- Laser Beam Processing (AREA)
Abstract
The present invention discloses a kind of laser repairing material of pelletizer die, and composition includes Cr, further includes having W, C, Mo, Mn, Fe, Ti, Ni, the mass percent of wherein each component is：Cr：20~25%；W：10~15%；Mo：10~12%；Fe:0.2~1%；Mn：0.1~0.9%；C:0.1~0.8%；Ti:0.1~1%；Ni：Surplus.The present invention is by adding alloy substrate intensified element, crystal grain refinement and boundary-strengthening element; and adjust the degree of each element; reinforced alloys matrix; grain boundary quality is improved again; alloy is set to obtain good comprehensive performance; to realize pelletizer die with good high temperature resistant, compressive resistance, resistance to high temperature oxidation and the preferable objective of toughness.
Description
Technical field
The present invention relates to a kind of high temperature resistant, compressive resistance, the laser repairing material with superior cladding performance, more particularly to
A kind of petrochemical industry（Mainly plastic products）The laser repairing material of pelletizer die.
Background technology
Device template making technique complexity in the comminutor of petrochemical industry, production cost height, period are long, in plastic industry
Belong to the product that high-volume uses., centre is hollow-core construction, and material is high-temperature rigid alloy, pelletizer die for a long time 200~
Continue working under 300 DEG C of high temperature, it is 390 DEG C that a temperature is cleared up in burning, and template burning clearance time is 12 hours, working media
Hot coal oil pressure is 5-8kg, and material pressure is 200 kg, and when work subjects high-temperature oxydation, cool-hot fatigue and compression shock
Effect, it is therefore, easily cracked in pelletizer die, and it is once cracked, then it will appear oil leakage phenomenon, will be unable to continue
It uses, need to be replaced.
With the continuous speedup of the growth requirement of China's plastic products, major part pelletizer die is all in event of overload at present
Lower operation, the failure rate of pelletizer die are also continuously increased, and in pelletizer die maintenance process 80% or more need to be granulated
Machine device template is replaced, and is about replaced with thousand times or more every year, therefore, in order to reduce the repair of granulator device template
Cost accelerates the repair duration, it is desirable that must be repaired to pelletizer die.
Therefore, pelletizer die repair materials appropriate are selected, ensures that the thermal deformation of the pelletizer die after repairing is small, advise
The requirement of pelletizer die of the plasticity by force and after reparation is current project urgently to be resolved hurrily.
Laser melting coating recovery technique has obtained rapid popularization and has answered extensively in recent years as a kind of advanced re-manufacturing technology
With.
For laser melting coating recovery technique using the high feature of high energy laser beam focused energy, moment will be pre- in substrate surface
It sets or send alloy powder setting, with specific physical, chemistry or mechanical property to be completely melt automatically with laser synchronization, while base
Material part is melted, and is formed a kind of new compound material, is quickly solidified after laser beam flying, and the cause with matrix metallurgical binding is obtained
Close coating, to achieve the purpose that restore geometric dimension and surface peening.Therefore it searches out appropriate by the way of laser melting coating
The method for repairing pelletizer die still needs to those skilled in the art and further makes creative research work.
What is usually selected during fabrication due to current external comminutor itself is high temperature alloy, can not be carried out both at home and abroad to it
It repairs, therefore, the applicant has invented a kind of laser for comminutor and repaiied by long-term theory analysis and a large amount of experiment
Multiple special repair materials prepare a kind of special coating and apply and making in conjunction with this advanced re-manufacturing technology of laser melting coating
On grain machine template machine, can effectively it solve the above problems.
Invention content
It is an object of the invention to solve the above problem of the existing technology, by Improvement repeatedly, one is given
The laser repairing material of kind pelletizer die, which realizes the reparation of pelletizer die, and renovation technique operates
Simply, adaptable, thermal deformation is small, normative strong, the pelletizer die after reparation meets requirement, to reducing pelletizer die
The maintenance cost of plate is of great value.
This repair materials with high temperature resistant, the laser repairing comminutor of compressive resistance provided by the invention, for using
The method of laser melting coating repairs comminutor crack site.The repair materials improve the anti-height in cladding region by adding more Cr
Warm oxidation susceptibility, especially by a kind of carry out alloy substrate reinforcing at least added in W, Mo element, to good
High temperature resistant and compressive resistance have high temperature oxidation resistance.
The technical solution that the present invention provides is：A kind of laser repairing material of pelletizer die, composition includes Cr；Also
Include W, C, Mo, Mn, Fe, Ti, Ni, wherein each component（Mass percent）For.
Cr：20~25%；W：10~15%；Mo ：10~12%；Fe :0.2~1%；Mn：0.1~0.9%；C: 0.1~0.8%；Ti:
0.1~1%；Ni：Surplus.
The present invention increases high temperature oxidation resistance by adding Cr elements；Select alloy substrate element, crystal grain refinement crystal boundary
Intensified element controls the degree of each group element, and alloy powder is made to obtain superior performance, and then realizes that alloy exists
Ensure the premise of hardness, while there is good corrosion resistance and high temperature oxidation resistance, fine and close metallurgy is formed with memorial archway base material
Binder course meets the requirement of laser melting coating memorial archway reparation.
The material that the present invention provides is prepared by processes such as vacuum melting, vacuum aerosolization, screenings, granularity is-
100+220 mesh.
The Co-based alloy powder that the present invention provides is suitable for Full solid-state solid laser, and the powder material is applied repairing
The melting and coating process parameter of material is：Laser melting coating, laser melting coating parameter are carried out using 5KW gas lasers, full-automatic spin rotating tooling
For：Power 3000-5000W, tabula rasa 3 ~ 4mm of diameter, cladding 0.5 ~ 1mm of thickness, cladding speed 8-10mm/s.
Compared with prior art, the beneficial effects of the invention are as follows.
1. adding alloy substrate intensified element, crystal grain refinement and boundary-strengthening element, and the percentage for adjusting each element contains
Amount.By strengthening means, reinforced alloys matrix, and grain boundary quality is improved, alloy is made to obtain good comprehensive performance.To real
Showed pelletizer die with good high temperature resistant, compressive resistance, resistance to high temperature oxidation and the preferable objective of toughness, technology stability and
Homogeneity of ingredients meets the requirement of the intensity of comminutor laser melting coating.
2. by adding larger amount of Cr elements, the high temperature oxidation resistance after the material laser cladding is improved, is ensured molten
It covers region not continuing that high-temperature oxydation occurs under the operating mode of high temperature and pressure, improves the quality of device reparation.
3 pelletizer dies prove the material after repair, by the detection of carrying out flaw detection, pressure detecting and actual motion
High temperature resistant, compressive resistance degree meet the requirement that memorial archway uses, and repair position without cracked again.
Specific implementation mode
Embodiment 1
The repair process of Shanghai petrochemical plant pelletizer die.
Pelletizer die degree of impairment：There are three Cracks around near there are 4PE device template bolts hole, crackle is long
Degree is respectively：5mm, 10mm, 20mm.
Hydraulic pressure is carried out first or oil pressure detects pelletizer die crackle concrete condition, and mechanical chipping crackle exposes comminutor
Matrix metallic luster itself carries out laser melting coating using the material.It is carried out using 5KW gas lasers, full-automatic spin rotating tooling
Laser melting coating, laser melting coating parameter are：Power 3000-5000W, tabula rasa 3 ~ 4mm of diameter, cladding 0.5 ~ 1mm of thickness, cladding speed
8-10mm/s。
Ingredient is： Cr：23%；W: 12%；Mo: 11%;C: 0.3%;Fe :0.2%；Mn：0.3%；Ti:0.45%； Ni：
Surplus.
Mechanical processing is restored to be granulated machined surface after laser melting coating, reaches requirement.Through pressure detecting qualification, into enforcement
With running to certain time limit（It is 2 years）It detects again afterwards, still without crackle.Prove that high temperature resistant, the compressive resistance of the material are complete
Meet design objective.
The 5KW gas lasers that are used in the laser melting coating of above-mentioned technical proposal, full-automatic spin rotating tooling is existing
The professional equipment of industry.
The present invention realizes the reparation of pelletizer die crackle, and this renovation technique is easy to operate, adaptable, thermal change
Shape is small, normative strong, and the pelletizer die after reparation meets normal requirement, is tieed up to the plastic products equipment of petrochemical industry
The reduction for accomplishing this is of great value.
Claims (1)
1. a kind of laser repairing material of pelletizer die, it is characterised in that its composition includes Cr, further include have W, C, Mo,
Mn, Fe, Ti, Ni, wherein each component mass percent are：
Cr 20 ~ 25%, W 10 ~ 15%, Mo 10 ~ 12%, Fe 0.2 ~ 1%, Mn 0.1 ~ 0.9%, C 0.1 ~ 0.8%, Ti 0.1 ~ 1%,
Ni is surplus；
The material is prepared by vacuum melting, vacuum aerosolization, screening process, and granularity is -100~+220 mesh；It is described to swash
The melting and coating process parameter of light repair materials is：Laser melting coating, laser are carried out using 5KW gas lasers, full-automatic spin rotating tooling
Cladding parameter is：Power 3000-5000W, tabula rasa 3 ~ 4mm of diameter, cladding 0.5 ~ 1mm of thickness, cladding speed 8-10mm/s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510612578.7A CN106555077B (en) | 2015-09-24 | 2015-09-24 | A kind of laser repairing material of pelletizer die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510612578.7A CN106555077B (en) | 2015-09-24 | 2015-09-24 | A kind of laser repairing material of pelletizer die |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106555077A CN106555077A (en) | 2017-04-05 |
| CN106555077B true CN106555077B (en) | 2018-08-07 |
Family
ID=58413568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510612578.7A Active CN106555077B (en) | 2015-09-24 | 2015-09-24 | A kind of laser repairing material of pelletizer die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106555077B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110453214A (en) * | 2019-08-29 | 2019-11-15 | 上海材料研究所 | A kind of laser cladding method of nickel-base alloy laser cladding powder |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101368239A (en) * | 2007-08-17 | 2009-02-18 | 北京有色金属研究总院 | Nickel base alloy and stainless steel valve with nickel base alloy layer sealing surface, and production method thereof |
| CN102021565A (en) * | 2009-09-23 | 2011-04-20 | 沈阳大陆激光技术有限公司 | method for repairing supercharger nozzle ring of internal-combustion engine |
-
2015
- 2015-09-24 CN CN201510612578.7A patent/CN106555077B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101368239A (en) * | 2007-08-17 | 2009-02-18 | 北京有色金属研究总院 | Nickel base alloy and stainless steel valve with nickel base alloy layer sealing surface, and production method thereof |
| CN102021565A (en) * | 2009-09-23 | 2011-04-20 | 沈阳大陆激光技术有限公司 | method for repairing supercharger nozzle ring of internal-combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106555077A (en) | 2017-04-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102560478B (en) | Laser cladding method | |
| CN104385703B (en) | Complex gradient coating that a kind of blade surface is repaired and preparation method thereof | |
| CN103341586B (en) | Method for achieving forming of GH4738 nickel-base superalloy turbine discs | |
| CN103481010B (en) | A kind of full-automatic online cold welding pattching roll squeezer technique | |
| CN106167885A (en) | The restorative procedure of metal material interior microscopic defect | |
| CN101994114A (en) | Laser cladding wear-resisting and heat fatigue-resisting alloy coating process for manufacturing hot rolled seamless steel tube rolling mill retained mandrel | |
| CN104741499B (en) | Sandwich layer forging die and preparation method of forging die sandwich layer surfacing | |
| CN103597105A (en) | Thermo-mechanical processing of nickel-base alloys | |
| CN101767262B (en) | Reproducing method of forging mold by using composite build-up welding | |
| CN105063491B (en) | A kind of preparation method of radial precision forging machine high rigidity tup | |
| CN103255412A (en) | High hardness material laser cladding process method for roller work surface | |
| CN104084747B (en) | A kind of restorative procedure of inner die for cold-drawn process | |
| CN104001845A (en) | Forging process method of Ti2AlNb alloy large-size disk parts | |
| CN101767268B (en) | Preparation method of forging mold by using composite build-up welding and spray welding method | |
| CN102069270A (en) | Method for repairing straightening machine supporting roller by flux-cored wire surfacing | |
| CN105441844A (en) | Extrusion blooming method for high-deformation superalloy ingot casting | |
| CN106555077B (en) | A kind of laser repairing material of pelletizer die | |
| CN106480449A (en) | A kind of method that laser manufactures heavy section universal mill horizontal roller | |
| CN104209639A (en) | Mold cutting edge repair welding process | |
| CN104233288B (en) | A kind of preparation method of TiCFeAl bases wear-resistant coating | |
| CN102814443B (en) | Limit forging method of rectangular blank | |
| CN114055092A (en) | Method for manufacturing air-hole ultrahigh-pressure pipe fitting by high-nickel alloy structural steel | |
| CN100389926C (en) | Hot werk mould steel welding material | |
| CN106826090A (en) | A kind of Piston Rods Die built-up welding preparation technology | |
| CN106854761B (en) | In the method that ejection roller way of continuous casting machine surface prepares wear-and corrosion-resistant coating |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20170405 Assignee: Shenyang Dalu Laser Complete Equipment Co.,Ltd. Assignor: Shenyang Dalu Laser Technology Co.,Ltd. Contract record no.: X2023210000149 Denomination of invention: A Laser Repair Material for Granulator Template Granted publication date: 20180807 License type: Common License Record date: 20230927 |
|
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20170405 Assignee: Shenyang Continental Laser Group Co.,Ltd. Assignor: Shenyang Dalu Laser Technology Co.,Ltd. Contract record no.: X2023210000150 Denomination of invention: A Laser Repair Material for Granulator Template Granted publication date: 20180807 License type: Common License Record date: 20231007 |