CN110370688A - Frame-type composite material shaping mould supersonic speed hot-spraying technique method for repairing and mending - Google Patents
Frame-type composite material shaping mould supersonic speed hot-spraying technique method for repairing and mending Download PDFInfo
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- CN110370688A CN110370688A CN201910600731.2A CN201910600731A CN110370688A CN 110370688 A CN110370688 A CN 110370688A CN 201910600731 A CN201910600731 A CN 201910600731A CN 110370688 A CN110370688 A CN 110370688A
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- workpiece
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- repairing
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- frame
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C73/00—Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass B29D
- B29C73/02—Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass B29D using liquid or paste-like material
- B29C73/025—Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass B29D using liquid or paste-like material fed under pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C73/00—Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass B29D
- B29C73/24—Apparatus or accessories not otherwise provided for
- B29C73/26—Apparatus or accessories not otherwise provided for for mechanical pretreatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C73/00—Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass B29D
- B29C73/24—Apparatus or accessories not otherwise provided for
- B29C73/30—Apparatus or accessories not otherwise provided for for local pressing or local heating
- B29C73/34—Apparatus or accessories not otherwise provided for for local pressing or local heating for local heating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Coating By Spraying Or Casting (AREA)
Abstract
Frame-type composite material shaping mould supersonic speed hot-spraying technique method for repairing and mending, belongs to technical field of aerospace.Method and step is as follows: workpiece surface pretreatment；Pretreated workpiece is preheated；Preheating temperature is 60~120 DEG C, preheating time 1-2min；Workpiece surface spraying；Surface reconditioning is carried out using nickel-base alloy sprayed on material, sprayed on material is accelerated to the up to speed of 1000-1400m/s, is ejected into working surface when being heated to fusing or semi-molten state；Laser detection；Spary coating type face is detected using laser tracker, is compared by detection data and gross data, to determine whether qualification, the workpiece coating polishing treatment of next step is carried out to qualified workpiece；Workpiece coating polishing treatment；Guarantee polishing rear profile face finish Ra1.6-0.8 to coating surface polishing treatment after processing with numerically-controlled machine tool processing type face.Frame-type composite material shaping mould can satisfy mould and die accuracy requirement and use etc. and require after method repairing of the invention.
Description
Technical field
The present invention relates to a kind of frame-type composite material shaping mould method for repairing and mending to belong to technical field of aerospace.
Background technique
Complicated, the production cycle applied to frame-type composite material shaping mould manufacturing process on military or civil aircraft
Long, processing charges is high.For composite products as single-piece production, product change is inevitable.Mold also often has in use
It the factors such as collides with or wears, it is also desirable to which die surface is repaired.Repairing measures are improper, will cause warpage, the expansion of mold
And the deformation such as rebound, product size precision and type face precision are influenced, scrap of the product is eventually led to, can only redesign and process
New composite material shaping mould, this process considerably increase production cost and production cycle.Therefore various repairing skills are applied
Art makes it restore service performance, puts back into needing the mold changed or damaged to repair, and uses mold is extended
Service life reduces production cost, increases economic efficiency and be of great significance.
It is with short production cycle since frame-type composite material shaping mould change construction period is tight.It needs in mending course
Thermal stress deformation is minimized, the process time after repairing is saved.Currently, the repairing technique for molding die mainly has
Arc surfacing technology, plasma spray technology, Brush Plating recovery technique and laser welding recovery technique.
Using the method for arc welding, since arc time is long, workpiece surface and arc line contact action area are big,
So that heat input is big.Therefore after arc surfacing is repaired, workpiece heat affected area area is big, and residual internal stress is big, is also easy to produce fire check, mould
Tool is also easy to produce serious thermal deformation；Laser welding repairing is a kind of high-efficiency and precision using the laser beam of high-energy density as heat source
Method for repairing and mending, since speed of welding is fast, heat flow density is big, so that die surface heat-affected zone is big, die face can generate interior
Stress needs the heat treatment process in later period to be removed internal stress, increases maintenance cost and maintenance time to a certain extent；Electricity
Brush plating recovery technique remediation efficiency is lower, and needs to clean workpiece surface after repairing, and the type face after cleaning has corrosion
Phenomenon, coating adhesion can decline when in addition thickness is excessive.
The shortcomings that existing plasma spray technology:
1, in hot-spraying technique implementation process, dust, the meeting pair such as toxic metals steam, heat radiation, noise pollution can be generated
Construction personnel and environment bring interference；
2, there is the coating of thermal spraying certain porosity to need to do sealing surface pore after intermetallic composite coating.
Summary of the invention
The object of the present invention is to provide a kind of frame-type composite material shaping mould supersonic speed hot-spraying technique method for repairing and mending,
It, which is a kind of frame-type composite material shaping mould, is colliding with, is wearing and when product is changed is new to one kind of die face reparation
Method.
Realize above-mentioned purpose, the technical solution adopted by the present invention is that:
A kind of frame-type composite material shaping mould supersonic speed hot-spraying technique method for repairing and mending, the method comprises the following steps:
Step 1: workpiece surface pretreatment；Remove the dirt of workpiece surface；
Step 2: pretreated workpiece is preheated；Preheating temperature is 60~120 DEG C, preheating time 1-2min；
Step 3: workpiece surface spraying；Surface reconditioning is carried out using nickel-base alloy sprayed on material, sprayed on material is being heated
To when fusing or semi-molten state, it is accelerated to the up to speed of 1000-1400m/s, is ejected into working surface；Specifically:
Use supersonic speed thermal spraying outlet pressure for 0.7MPa, heat source is 100mm, electric current I=100A, voltage U with a distance from workpiece
=34V, temperature are 3000 DEG C, and the bond strength of coating and substrate is 30-50kgf/mm2, coating with a thickness of 3-5mm, workpiece
Surface layer obtains the coating of HRC15-65 hardness；
Step 4: laser detection；Spary coating type face is detected using laser tracker, is carried out by detection data and gross data
Comparison carries out the workpiece coating polishing treatment of next step to qualified workpiece to determine whether qualification, unqualified for detection type face
Workpiece, carry out surface spray again, repeat step 2 to step 4；
Step 5: workpiece coating polishing treatment；With numerically-controlled machine tool processing type face, to coating surface polishing treatment after processing,
Guarantee polishing rear profile face finish Ra1.6-0.8.
The beneficial effect of the present invention compared with the existing technology is: frame-type composite material shaping mould supersonic speed of the invention
Hot-spraying technique method for repairing and mending is the special process of surface peening and the reparation of a kind of metal parts, it utilizes supersonic speed, electricity
Alloy material is heated into fusing or semi-molten state by the heat sources such as arc, and injection to workpiece surface, being formed has certain knot with workpiece
Close the protective layer of intensity.The various functions such as wear-resisting, anti-corrosion, heat-resisting, resistance to high temperature oxidation may be implemented, thus several times even tens times
Raising workpiece service life.
It was verified that supersonic speed hot-spraying technique repairing technique has repairing quality high, workpiece thermal deformation is small after repairing, table
Outstanding advantages of surface roughness is good, and repairing efficiency is high, and repairing adaptability is good, can be realized Rapid-Repair.After repairing, it can satisfy
Mould and die accuracy requires and uses etc. to require, with very big Technique Popularizing value and wide application prospect.
Detailed description of the invention
Fig. 1 is the flow chart element of frame-type composite material shaping mould supersonic speed hot-spraying technique method for repairing and mending of the invention
Figure；
Fig. 2 is the picture repaired after frame-type composite material shaping mould type face using method of the invention；
Fig. 3 is the picture after the frame-type composite material shaping mould type face polishing after repairing.
Specific embodiment
Specific embodiment 1: present embodiment describes a kind of frame-type composite material shaping mould supersonic speed thermal spraying
Technique method for repairing and mending, the method comprises the following steps:
Step 1: workpiece surface pretreatment；Remove the dirt of workpiece surface；
Step 2: pretreated workpiece is preheated；Preheating temperature is 60~120 DEG C, preheating time 1-2min
(purpose of preheating is the moisture in order to eliminate workpiece surface, improve spraying when coating/basal body interface temperature, reduce substrate with
Residual stress caused by the differences in expansion of coating material to avoid thus caused coating cracking and improves coating in conjunction with matrix
Intensity.Preheating temperature depends on the factors such as the thermal expansion coefficient of the size of workpiece, shape and material and substrate and coating material,
General control is within the scope of 60~120 DEG C)；
Step 3: workpiece surface spraying；Surface reconditioning is carried out using nickel-base alloy sprayed on material, sprayed on material is being heated
To when fusing or semi-molten state, it is accelerated to the up to speed of 1000-1400m/s, is ejected into working surface (to obtain
High, the fine and close quality coating of bond strength)；Specifically: use supersonic speed thermal spraying outlet pressure for 0.7MPa, heat source is from work
Part distance is 100mm, and electric current I=100A, voltage is U=34V (nearby thermal current speed is 1000-1400m/s to electrode), temperature
Degree is 3000 DEG C, and the bond strength of coating and substrate is 30-50kgf/mm2(300-500MPa), coating with a thickness of 3-5mm,
Workpiece surface obtains the coating of HRC15-65 different hardness；
Step 4: laser detection；Spary coating type face is detected using laser tracker, is carried out by detection data and gross data
Comparison carries out the workpiece coating polishing treatment of next step to qualified workpiece to determine whether qualification, unqualified for detection type face
Workpiece, carry out surface spray again, repeat step 2 to step 4；
Step 5: workpiece coating polishing treatment；With numerically-controlled machine tool processing type face, to coating surface polishing treatment after processing,
Guarantee polishing rear profile face finish Ra1.6-0.8.
Further, in the step of present embodiment one, using the Brown Alundum diamond dust blasting craft of 16 mesh to workpiece
Surface is pre-processed and (removes all dirts of workpiece surface, such as grease, paint, rusty stain and oxide skin and other dirts).
Further, the surface cleanness after Workpiece painting reaches the grade of the Sa3 in ISO8501-1, coarse in step 3
It is R25-100 that degree, which meets GB1031-1995,.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than the present invention is protected
The limitation of range is protected, although explaining in detail referring to preferred embodiment to the present invention, those skilled in the art are answered
Work as understanding, it can be with modification or equivalent replacement of the technical solution of the present invention are made, without departing from the reality of technical solution of the present invention
Matter and range.
Claims (3)
1. a kind of frame-type composite material shaping mould supersonic speed hot-spraying technique method for repairing and mending, it is characterised in that: the method
Steps are as follows:
Step 1: workpiece surface pretreatment；Remove the dirt of workpiece surface；
Step 2: pretreated workpiece is preheated；Preheating temperature is 60~120 DEG C, preheating time 1-2min；
Step 3: workpiece surface spraying；Using nickel-base alloy sprayed on material carry out surface reconditioning, sprayed on material be heated to it is molten
When change or semi-molten state, it is accelerated to the up to speed of 1000-1400m/s, is ejected into working surface；Specifically: it uses
Supersonic speed thermal spraying outlet pressure is 0.7MPa, and heat source is 100mm, electric current I=100A, voltage U=with a distance from workpiece
34V, temperature are 3000 DEG C, and the bond strength of coating and substrate is 30-50kgf/mm2, coating with a thickness of 3-5mm, workpiece table
Layer obtains the coating of HRC15-65 hardness；
Step 4: laser detection；Spary coating type face is detected using laser tracker, is carried out pair by detection data and gross data
Than to determine whether qualification, the workpiece coating polishing treatment of next step being carried out for the workpiece of detection type face qualification, for detection
The underproof workpiece in type face carries out surface and sprays again, repeats step 2 to step 4；
Step 5: workpiece coating polishing treatment；Guaranteed with numerically-controlled machine tool processing type face to coating surface polishing treatment after processing
Polish rear profile face finish Ra1.6-0.8.
2. frame-type composite material shaping mould supersonic speed hot-spraying technique method for repairing and mending according to claim 1, special
Sign is: in step 1, being pre-processed using the Brown Alundum diamond dust blasting craft of 16 mesh to workpiece surface.
3. frame-type composite material shaping mould supersonic speed hot-spraying technique method for repairing and mending according to claim 1, special
Sign is: in step 3, the surface cleanness after Workpiece painting reaches the grade of the Sa3 in ISO8501-1, and roughness meets
GB1031-1995 is R25-100.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910600731.2A CN110370688A (en) | 2019-07-04 | 2019-07-04 | Frame-type composite material shaping mould supersonic speed hot-spraying technique method for repairing and mending |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910600731.2A CN110370688A (en) | 2019-07-04 | 2019-07-04 | Frame-type composite material shaping mould supersonic speed hot-spraying technique method for repairing and mending |
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| Publication Number | Publication Date |
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| CN110370688A true CN110370688A (en) | 2019-10-25 |
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| CN201910600731.2A Withdrawn CN110370688A (en) | 2019-07-04 | 2019-07-04 | Frame-type composite material shaping mould supersonic speed hot-spraying technique method for repairing and mending |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113002022A (en) * | 2021-03-25 | 2021-06-22 | 南京工程学院 | Fiber reinforced resin matrix composite material repairing method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101524746A (en) * | 2009-04-03 | 2009-09-09 | 鞍山金维表面工程技术有限公司 | Technological method for repairing continuous caster crystallizer copperplate by coating WC alloy |
| WO2010066294A1 (en) * | 2008-12-10 | 2010-06-17 | Sulzer Metco Ag | Method for producing a body having a thermally injected surface layer, body having a thermally sprayed surface coating, and use of the method for producing a body |
| CN102787288A (en) * | 2012-08-21 | 2012-11-21 | 黄红霞 | Hot spraying process of metal ceramic coating on surface of valve rod |
| CN104005018A (en) * | 2014-05-29 | 2014-08-27 | 耿荣献 | Wear-resistant coating process applicable to surfaces of highly wear-resistant and fire-proof material dies |
| CN108842124A (en) * | 2018-06-04 | 2018-11-20 | 重庆市科学技术研究院 | A kind of method of laser melting coating reparation and reinforcing mold |
-
2019
- 2019-07-04 CN CN201910600731.2A patent/CN110370688A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010066294A1 (en) * | 2008-12-10 | 2010-06-17 | Sulzer Metco Ag | Method for producing a body having a thermally injected surface layer, body having a thermally sprayed surface coating, and use of the method for producing a body |
| CN101524746A (en) * | 2009-04-03 | 2009-09-09 | 鞍山金维表面工程技术有限公司 | Technological method for repairing continuous caster crystallizer copperplate by coating WC alloy |
| CN102787288A (en) * | 2012-08-21 | 2012-11-21 | 黄红霞 | Hot spraying process of metal ceramic coating on surface of valve rod |
| CN104005018A (en) * | 2014-05-29 | 2014-08-27 | 耿荣献 | Wear-resistant coating process applicable to surfaces of highly wear-resistant and fire-proof material dies |
| CN108842124A (en) * | 2018-06-04 | 2018-11-20 | 重庆市科学技术研究院 | A kind of method of laser melting coating reparation and reinforcing mold |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113002022A (en) * | 2021-03-25 | 2021-06-22 | 南京工程学院 | Fiber reinforced resin matrix composite material repairing method |
| CN113002022B (en) * | 2021-03-25 | 2022-03-08 | 南京工程学院 | Fiber reinforced resin matrix composite material repairing method |
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| PB01 | Publication | ||
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Application publication date: 20191025 |