CN108220864A - A kind of method that supersonic spray coating NiCrFeMn coatings repair casing seam allowance size - Google Patents
A kind of method that supersonic spray coating NiCrFeMn coatings repair casing seam allowance size Download PDFInfo
- Publication number
- CN108220864A CN108220864A CN201611137142.8A CN201611137142A CN108220864A CN 108220864 A CN108220864 A CN 108220864A CN 201611137142 A CN201611137142 A CN 201611137142A CN 108220864 A CN108220864 A CN 108220864A
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- China
- Prior art keywords
- seam allowance
- casing seam
- blast
- nicrfemn
- needed
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/06—Metallic material
- C23C4/08—Metallic material containing only metal elements
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The present invention relates to a kind of methods for repairing accessory size, and in particular to a kind of method that supersonic spray coating NiCrFeMn coatings repair casing seam allowance size.Include the following steps：Step 1：Blast processing is carried out to casing seam allowance；Step 2：Oil removal treatment is carried out to casing seam allowance；Step 3：Casing seam allowance is not needed to protect before the position that spraying is repaired carries out blast；Step 4：The region blast of repairing sizes is needed to casing seam allowance, using 50~60 mesh magnesium oxide sands, blast pressure is 0.2~0.5MPa；Step 5：The region of repairing sizes is needed to carry out supersonic speed spray NiCrFeMn coatings to casing seam allowance, design parameter is：2.5~5.5L/min of kerosene oil flow, oxygen flow are 800~1200L/min, and powder feeding rate is 75~80g/min, and spray distance is 120~240mm, and spray angle is 60~65 °.The present invention makes the part after reparation meet matching requirements, saves part producing cost again, reduces production cost.
Description
Technical field
The present invention relates to a kind of methods for repairing accessory size, and in particular to a kind of supersonic spray coating NiCrFeMn coatings are repaiied
The method for casket seam allowance size of answering a pager's call.
Background technology
The contact positions such as the stationary parts such as engine crankcase or dish axle class rotatable parts seam allowance are because of part pair during use
It grinds and dimension overproof, leads to part rejection.To meet the needs of engine component is continuing with while also reducing production cost,
Repairing sizes need to be carried out to abrading section, to ensure parts fitted position needs.And for high-speed rotating parts, because making
The reasons such as big, velocity of rotation is fast, abrading section size is small, bond strength, rough surface to repairing sizes coating are deformed with rear
The performance requirements such as degree, stress state are higher, and renovation technique is complicated, difficulty is big.
Invention content
The present invention provides a kind of method that supersonic spray coating NiCrFeMn coatings repair casing seam allowance size, after making reparation
Part meets matching requirements, saves part producing cost again, reduces production cost.
Technical scheme is as follows：
A kind of method that supersonic spray coating NiCrFeMn coatings repair casing seam allowance size, includes the following steps：
Step 1：Blast processing is carried out to casing seam allowance, using steel sand, shot peening strength is 0.008N~0.016N；
Step 2：Oil removal treatment is carried out to casing seam allowance, casing seam allowance is wiped using gasoline, is degreased and sundries；
Step 3：Casing seam allowance is not needed to protect before the position that spraying is repaired carries out blast, using Protection glue band to casing
It is protected in seam allowance non-spraying region；
Step 4：The region blast of repairing sizes is needed to casing seam allowance, using 50~60 mesh magnesium oxide sands, blast pressure
For 0.2~0.5MPa,；
Step 5：The region of repairing sizes is needed to carry out supersonic speed spray NiCrFeMn coatings, design parameter to casing seam allowance
For：2.5~5.5L/min of kerosene oil flow, oxygen flow are 800~1200L/min, and powder feeding rate is 75~80g/min, is sprayed
Distance is 120~240mm, and spray angle is 60~65 °.
Beneficial effects of the present invention are as follows：
1st, the present invention carries out shot peening strengthening before reparation is sprayed to the area to be sprayed of eroded area, further to prolong
Elongated workpieces fatigue life.NiCrFeMn coatings are prepared using supersonic spray coating technique, due to supersonic spray coating technique flame flow velocity degree
Height, the anchoring strength of coating of preparation is high, and coating microstructure is uniform, oxide content is low, and coating performance is excellent.With other methods
This method is compared, and anchoring strength of coating higher made from this method, stability is more preferable, is a kind of long-life reparation.This hair
It is bright to be combined Anti-fatigue manufacture technology with repairing sizes coating technology, i.e., the spraying area of abrasion is carried out before spraying is repaired
Shot peening strengthening improves the stress state that part repairs surface, and implementing blasting technology makes the remnants on part reparation surface
Tensile stress reduce (drawing stress on surface is reduced to less than 20MPa by being more than 100MPa), reduce disbonding, chip off-falling risk,
Be conducive to extend part fatigue life.
2nd, the present invention can meet the needs of aero-engine high temperature parts repairing, be suitble to large-scale industrial production,
It is highly practical, it saves cost, improve production efficiency, it can be in aero-engine and turbine turns part seam allowance or static element
It promotes and applies.
Specific embodiment
A kind of method that supersonic spray coating NiCrFeMn coatings repair casing seam allowance size, includes the following steps：
Step 1：Blast processing is carried out to casing seam allowance, using steel sand, shot peening strength 0.010N；
Step 2：Oil removal treatment is carried out to casing seam allowance, casing seam allowance is wiped using gasoline, is degreased and sundries；
Step 3：Casing seam allowance is not needed to protect before the position that spraying is repaired carries out blast, using Protection glue band to casing
It is protected in seam allowance non-spraying region；
Step 4：The region blast of repairing sizes is needed to casing seam allowance, using 60 mesh aluminum oxide sands, blast pressure is
0.2MPa,；
Step 5：The region of repairing sizes is needed to carry out supersonic speed spray NiCrFeMn coatings to casing seam allowance, design parameter is
Kerosene oil flow 3.5L/min, oxygen flow 800L/min, powder feeding rate 80g/min, spray distance 240mm, angle of spray
Spend is 70 °.
Claims (1)
1. a kind of method that supersonic spray coating NiCrFeMn coatings repair casing seam allowance size, which is characterized in that including walking as follows
Suddenly：
Step 1：Blast processing is carried out to casing seam allowance, using steel sand, shot peening strength is 0.008N~0.016N；
Step 2：Oil removal treatment is carried out to casing seam allowance, casing seam allowance is wiped using gasoline, is degreased and sundries；
Step 3：Casing seam allowance is not needed to protect before the position that spraying is repaired carries out blast, using Protection glue band to casing seam allowance
It is protected in non-spraying region；
Step 4：The region blast of repairing sizes is needed to casing seam allowance, using 50~60 mesh magnesium oxide sands, blast pressure is 0.2
~0.5MPa,；
Step 5：The region of repairing sizes is needed to carry out supersonic speed spray NiCrFeMn coatings to casing seam allowance, design parameter is：Coal
Oil stream 2.5~5.5L/min of amount, oxygen flow are 800~1200L/min, and powder feeding rate is 75~80g/min, and spray distance is
120~240mm, spray angle are 60~65 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611137142.8A CN108220864A (en) | 2016-12-12 | 2016-12-12 | A kind of method that supersonic spray coating NiCrFeMn coatings repair casing seam allowance size |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611137142.8A CN108220864A (en) | 2016-12-12 | 2016-12-12 | A kind of method that supersonic spray coating NiCrFeMn coatings repair casing seam allowance size |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108220864A true CN108220864A (en) | 2018-06-29 |
Family
ID=62637361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611137142.8A Pending CN108220864A (en) | 2016-12-12 | 2016-12-12 | A kind of method that supersonic spray coating NiCrFeMn coatings repair casing seam allowance size |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108220864A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111020449A (en) * | 2019-11-20 | 2020-04-17 | 中国航发沈阳黎明航空发动机有限责任公司 | Size repairing method for abrasion of high-temperature alloy disc shaft of aero-engine |
| CN113732616A (en) * | 2021-09-29 | 2021-12-03 | 中国航发动力股份有限公司 | Method for repairing installation edge |
-
2016
- 2016-12-12 CN CN201611137142.8A patent/CN108220864A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111020449A (en) * | 2019-11-20 | 2020-04-17 | 中国航发沈阳黎明航空发动机有限责任公司 | Size repairing method for abrasion of high-temperature alloy disc shaft of aero-engine |
| CN113732616A (en) * | 2021-09-29 | 2021-12-03 | 中国航发动力股份有限公司 | Method for repairing installation edge |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180629 |
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| WD01 | Invention patent application deemed withdrawn after publication |