CN107813098A - A kind of fast and low-cost Invar steel frock method for repairing and mending - Google Patents
A kind of fast and low-cost Invar steel frock method for repairing and mending Download PDFInfo
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- CN107813098A CN107813098A CN201711287389.2A CN201711287389A CN107813098A CN 107813098 A CN107813098 A CN 107813098A CN 201711287389 A CN201711287389 A CN 201711287389A CN 107813098 A CN107813098 A CN 107813098A
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- invar steel
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- frock
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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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Abstract
A kind of fast and low-cost Invar steel frock method for repairing and mending belongs to composite forming frock technical field；A kind of fast and low-cost Invar steel frock method for repairing and mending, comprises the following steps；1）Solid impurity is removed, 200# sand paper is chosen and is roughened Invar steel frocks region surface to be repaired；2）Solidfied material glass transition temperature is chosen higher than the multiple material product of Invar steel frock shaping；3）It is 193 ± 7g/m to choose carbon fiber surface density2Plain cloth as prepreg reinforcement or chopped carbon fiber as epoxy repair glue reinforcement；4）, as the bonding agent between repair prepreg and Invar steel frocks, increase the same inch of adhesive property between the two using with carrier thermal structure glued membrane, play a part of coefficient of expansion transition.The present invention not only efficiency high and cost is low.
Description
Technical field
The invention belongs to composite forming frock technical field, more particularly, to a kind of fast and low-cost Invar steel works
Repairing technique is filled, suitable for the fast and low-cost mending course of composite shaping Invar steel frocks.
Background technology
Invar steel, because its thermal coefficient of expansion is close with carbon fibre composite, and specific heat capacity is easy to less than common metal
Heat transfer, is widely used in the large-scale composite material structural member shaping frock higher to dimension precision requirement.In view of Invar steel
The reasons such as frock difficulty of processing is larger, the process-cycle is stronger, if there are Sun Huai Qing Condition, preferred processing scheme is to repair.
Repairing traditionally repair and smear refractory metal glue using region weld filler to be repaired and repair two kinds, the former passes through argon arc
Weldering, Laser Welding or the mending course that region to be repaired is completed the methods of cold welding, but more or less exist and be not suitable for sectional repair, easily
Produce the problems such as welding stress deformation, welding interval are long or the bad feed supplement of welding effect is easy to fall off；Although the latter can treat
Repairing area carries out Rapid-Repair, but because the thermal coefficient of expansion between Invar steel and refractory metal glue mismatches, through overheat
Metal-to-metal adhesive solidfied material falls off phenomenon after circulation, can not realize the purpose that more numbers use for a long time.And realize Invar steel
The key technology of frock fast and low-cost mending course is how to coordinate the thermal coefficient of expansion between feed supplement and Invar steel and glued
Connecing property, the mending course in region to be repaired can be completed without expensive welding or maintenance of equipment in a short time, and it is full
The follow-up dimensional accuracy for not influenceing product of foot and for a long time repeatedly thermal cycle use.At present, both at home and abroad for this problem still
Not good method for repairing and mending, the methods of weld filler is with smearing temperature resistant metallic glue is still continued to use, can not realize that Invar steel frocks are quick
Inexpensive mending course.
The content of the invention
In view of the deficienciess of the prior art, the technical problems to be solved by the invention are to provide a kind of efficient, low cost
Invar steel frock method for repairing and mending.
The present invention is adopted the following technical scheme that to complete：A kind of fast and low-cost Invar steel frock method for repairing and mending, its
It is characterised by：Comprise the following steps；
First, collapse and repair
1）Invar steel frocks are collapsed into solid impurity in region using hairbrush to remove, avoid damage to it is other without repairing area,
The surrounding in collapse region and lower surface are roughened using 200# sand paper, can feel that harsh feeling is advisable to be touched with finger；
2）The surrounding in region is collapsed in frock and lower surface pastes one layer of band carrier thermal structure glued membrane, according to region to be repaired
A series of prepreg sheet materials are cut, and laying to region to be repaired, is no less than 30min per 3 ~ 5 layers of vacuum debulk of laying, protected successively
Card prepreg laying is advisable to region to be repaired higher than neighboring area not less than 0.1 mm；
3）Treat after prepreg laying laying tetrafluoro cloth, non-porous release film, airfelt and vacuum bag successively, and along to be repaired
Area epitaxy pastes a circle sealing joint strip to complete to encapsulate and reach the purpose of gear glue；
4）After treating repairing area progress curing process using vacuum pressure in an oven, successively using 200#, 400#, 600# sand
Paper and flannelette carry out grinding process to repairing area with respect to the redundance in frock type face, then by three-dimensional coordinates measurement to determine
Repairing area and the matching of theoretical digital-to-analogue, the patch work of Invar steel frocks is completed after calibration.
2nd, crack repairing
1）Impurity in Invar steel frocks area fractures to be repaired is removed, prevents from damaging other same inch without repairing area,
Region to be repaired is set to avoid the occurrence of wedge angle position by polishing；
2）The fillers such as chopped carbon fiber reinforcement and hollow glass micropearl are mixed in the epoxy resin toughened glue of high temperature and divided
Dissipate uniformly, Invar steel region to be repaired is applied to when gelatin viscosity is moderate, glue liquid level must be made to be higher than frock area to be repaired
Domain peripheral type face, repairing area is heated using air-heater, reducing the viscosity of glue and increasing its mobility makes it fully fill out
Crack area is filled, and promotes the gelation process of glue；
3）Start after wire drawing phenomenon occurs in gel, to be hung with scraper plate and remove the glue of excess surface and be plated in one layer of non-porous isolation after glue
Film, utilize firing equipment（Such as electric blanket）Repairing area is treated to be heated；
4）It is to be repaired it is regions curing after, successively using 200#, 400#, 600# sand paper and flannelette to repairing area with respect to frock type
The unnecessary resin in face carries out grinding process, and the patch work of Invar steel frocks is completed after by three-dimensional coordinates measurement.
Its feature is：
1）After removing solid impurity, choose 200# sand paper and be roughened Invar steel frocks region surface to be repaired, increase is to be repaired
Interfacial adhesion between region Invar steel and chipping filler, prevent coming off for chipping filler during follow-up use；
2）Solidfied material glass transition temperature is chosen higher than the multiple material product of Invar steel frock shaping, the high-ductility that 30 DEG C of solidification temperature
Property epoxy resin prevents that repairing area is due to high temperature in multiple material product solidification process as prepreg matrix or repair sheets main body
And phenomena such as producing destruction；
3）It is 193 ± 7g/m to choose carbon fiber surface density2Plain cloth make as prepreg reinforcement or chopped carbon fiber
For epoxy repair glue reinforcement, using the former thermal coefficient of expansion, close and the latter is similar to quasi- isotropy material with Invar steel
The material coefficient of expansion can solve coefficient of expansion mismatch etc. between frock main body and chipping filler by the advantage adjusted of filler
Problem；
4）Using with carrier thermal structure glued membrane, as the bonding agent between repair prepreg and Invar steel frocks, increase is between the two
The same inch of adhesive property, plays a part of coefficient of expansion transition.
Beneficial effect compared with prior art is：Fast and low-cost Invar steel frock repairing technique of the present invention, is solved
The problems such as matched coefficients of thermal expansion and adhesive property quality between feed supplement and Invar steel, avoid tradition and filled out by welding
The methods of material or smearing temperature resistant metallic glue, is also easy to produce welding stress deformation, welding interval is long or the bad feed supplement of welding effect is easily de-
Phenomena such as falling.Utilize carbon fiber prepreg combination glued membrane or the epoxy of the doping filler such as chopped carbon fiber and hollow glass micropearl
Glue repairing Invar steel frocks collapse or crack area, it is only necessary to which heater, which is aided with bruting process, can complete Invar steel frocks
Fast and low-cost repairing.
Moreover, using thermal coefficient of expansion similar in carbon fibre composite and Invar steel, and glued membrane or epoxy glue are more
Excellent adhesive property, feed supplement can be made more perfectly to be combined together with Invar steel, by excellent in whole mending course
Change heating technique, repairing area will not produce internal stress, also be not in obscission even if being used for multiple times, frock globality
It is good.Also, subsequently repaired in original repairing area or newborn failure area mending course can use this method, repair material
Expect simple and easy to get, mending course is simple and convenient, applies to the preferred version of Invar steel frock mending courses.
Embodiment
The present invention is described in further detail with reference to embodiment.
A kind of fast and low-cost Invar steel frock method for repairing and mending, it is characterised in that：Comprise the following steps；
First, collapse and repair
1）Invar steel frocks are collapsed into solid impurity in region using hairbrush to remove, avoid damage to it is other without repairing area,
The surrounding in collapse region and lower surface are roughened using 200# sand paper, can feel that harsh feeling is advisable to be touched with finger；
2）The surrounding in region is collapsed in frock and lower surface pastes one layer of band carrier thermal structure glued membrane, according to region to be repaired
A series of prepreg sheet materials are cut, and laying to region to be repaired, is no less than 30min per 3 ~ 5 layers of vacuum debulk of laying, protected successively
Card prepreg laying is advisable to region to be repaired higher than neighboring area not less than 0.1 mm；
3）Treat after prepreg laying laying tetrafluoro cloth, non-porous release film, airfelt and vacuum bag successively, and along to be repaired
Area epitaxy pastes a circle sealing joint strip to complete to encapsulate and reach the purpose of gear glue；
4）After treating repairing area progress curing process using vacuum pressure in an oven, successively using 200#, 400#, 600# sand paper
And flannelette carries out grinding process to repairing area with respect to the redundance in frock type face, then by three-dimensional coordinates measurement to determine to repair
Region and the matching of theoretical digital-to-analogue are mended, the patch work of Invar steel frocks is completed after calibration.
2nd, crack repairing
1）Impurity in Invar steel frocks area fractures to be repaired is removed, prevents from damaging other same inch without repairing area,
Region to be repaired is set to avoid the occurrence of wedge angle position by polishing；
2）The fillers such as chopped carbon fiber reinforcement and hollow glass micropearl are mixed in the epoxy resin toughened glue of high temperature and divided
Dissipate uniformly, Invar steel region to be repaired is applied to when gelatin viscosity is moderate, glue liquid level must be made to be higher than frock area to be repaired
Domain peripheral type face, repairing area is heated using air-heater, reducing the viscosity of glue and increasing its mobility makes it fully fill out
Crack area is filled, and promotes the gelation process of glue；
3）Start after wire drawing phenomenon occurs in gel, to be hung with scraper plate and remove the glue of excess surface and be plated in one layer of non-porous isolation after glue
Film, utilize firing equipment（Such as electric blanket）Repairing area is treated to be heated；
4）It is to be repaired it is regions curing after, successively using 200#, 400#, 600# sand paper and flannelette to repairing area with respect to frock type
The unnecessary resin in face carries out grinding process, and the patch work of Invar steel frocks is completed after by three-dimensional coordinates measurement.
Its feature is：
1）After removing solid impurity, choose 200# sand paper and be roughened Invar steel frocks region surface to be repaired, increase is to be repaired
Interfacial adhesion between region Invar steel and chipping filler, prevent coming off for chipping filler during follow-up use；
2）Solidfied material glass transition temperature is chosen higher than the multiple material product of Invar steel frock shaping, the high-ductility that 30 DEG C of solidification temperature
Property epoxy resin prevents that repairing area is due to high temperature in multiple material product solidification process as prepreg matrix or repair sheets main body
And phenomena such as producing destruction；
3）It is 193 ± 7g/m to choose carbon fiber surface density2Plain cloth make as prepreg reinforcement or chopped carbon fiber
For epoxy repair glue reinforcement, using the former thermal coefficient of expansion, close and the latter is similar to quasi- isotropy material with Invar steel
The material coefficient of expansion can solve coefficient of expansion mismatch etc. between frock main body and chipping filler by the advantage adjusted of filler
Problem；
4）Using with carrier thermal structure glued membrane, as the bonding agent between repair prepreg and Invar steel frocks, increase is between the two
The same inch of adhesive property, plays a part of coefficient of expansion transition.
Beneficial effect compared with prior art is：Fast and low-cost Invar steel frock repairing technique of the present invention, is solved
The problems such as matched coefficients of thermal expansion and adhesive property quality between feed supplement and Invar steel, avoid tradition and filled out by welding
The methods of material or smearing temperature resistant metallic glue, is also easy to produce welding stress deformation, welding interval is long or the bad feed supplement of welding effect is easily de-
Phenomena such as falling.Utilize carbon fiber prepreg combination glued membrane or the epoxy of the doping filler such as chopped carbon fiber and hollow glass micropearl
Glue repairing Invar steel frocks collapse or crack area, it is only necessary to which heater, which is aided with bruting process, can complete Invar steel frocks
Fast and low-cost repairing.
Moreover, using thermal coefficient of expansion similar in carbon fibre composite and Invar steel, and glued membrane or epoxy glue are more
Excellent adhesive property, feed supplement can be made more perfectly to be combined together with Invar steel, by excellent in whole mending course
Change heating technique, repairing area will not produce internal stress, also be not in obscission even if being used for multiple times, frock globality
It is good.Also, subsequently repaired in original repairing area or newborn failure area mending course can use this method, repair material
Expect simple and easy to get, mending course is simple and convenient, applies to the preferred version of Invar steel frock mending courses.
Preferred embodiment of the invention described in detail above.It should be appreciated that one of ordinary skill in the art without
Creative work can is needed to make many modifications and variations according to the design of the present invention.Therefore, all technologies in the art
Personnel are available by logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea
Technical scheme, all should be in the protection domain being defined in the patent claims.
Claims (4)
- A kind of 1. fast and low-cost Invar steel frock method for repairing and mending, it is characterised in that：Comprise the following steps；First, collapse and repair1）Invar steel frocks are collapsed into solid impurity in region using hairbrush to remove, avoid damage to it is other without repairing area, The surrounding in collapse region and lower surface are roughened using 200# sand paper, can feel that harsh feeling is advisable to be touched with finger；2）The surrounding in region is collapsed in frock and lower surface pastes one layer of band carrier thermal structure glued membrane, according to region to be repaired A series of prepreg sheet materials are cut, and laying to region to be repaired, is no less than 30min per 3 ~ 5 layers of vacuum debulk of laying, protected successively Card prepreg laying is advisable to region to be repaired higher than neighboring area not less than 0.1 mm；3）Treat after prepreg laying laying tetrafluoro cloth, non-porous release film, airfelt and vacuum bag successively, and along to be repaired Area epitaxy pastes a circle sealing joint strip to complete to encapsulate and reach the purpose of gear glue；4）After treating repairing area progress curing process using vacuum pressure in an oven, successively using 200#, 400#, 600# sand paper And flannelette carries out grinding process to repairing area with respect to the redundance in frock type face, then by three-dimensional coordinates measurement to determine to repair Region and the matching of theoretical digital-to-analogue are mended, the patch work of Invar steel frocks is completed after calibration；2nd, crack repairing1）Impurity in Invar steel frocks area fractures to be repaired is removed, prevents from damaging other same inch without repairing area, Region to be repaired is set to avoid the occurrence of wedge angle position by polishing；2）The fillers such as chopped carbon fiber reinforcement and hollow glass micropearl are mixed in the epoxy resin toughened glue of high temperature and divided Dissipate uniformly, Invar steel region to be repaired is applied to when gelatin viscosity is moderate, glue liquid level must be made to be higher than frock area to be repaired Domain peripheral type face, repairing area is heated using air-heater, reducing the viscosity of glue and increasing its mobility makes it fully fill out Crack area is filled, and promotes the gelation process of glue；3）Start after wire drawing phenomenon occurs in gel, to be hung with scraper plate and remove the glue of excess surface and be plated in one layer of non-porous isolation after glue Film, treat repairing area using firing equipment and heated；4）It is to be repaired it is regions curing after, successively using 200#, 400#, 600# sand paper and flannelette to repairing area with respect to frock type The unnecessary resin in face carries out grinding process, and the patch work of Invar steel frocks is completed after by three-dimensional coordinates measurement.
- A kind of 2. fast and low-cost Invar steel frock method for repairing and mending according to claim 1, it is characterised in that：Choose solid Compound glass transition temperature higher than the multiple material product of Invar steel frock shaping, make by the high-toughness epoxy resin that 30 DEG C of solidification temperature For prepreg matrix or repair sheets main body, prevent that repairing area produces destruction etc. due to high temperature in multiple material product solidification process Phenomenon.
- A kind of 3. fast and low-cost Invar steel frock method for repairing and mending according to claim 1, it is characterised in that：Choose carbon The plain cloth that fiber areal densities are 193 ± 7g/m2 is as prepreg reinforcement or chopped carbon fiber as epoxy repair glue Reinforcement, using the former thermal coefficient of expansion, close and the latter can similar to quasi- isotropy material expand coefficient with Invar steel Solves the problems such as coefficient of expansion mismatches between frock main body and chipping filler by the advantage adjusted of filler.
- A kind of 4. fast and low-cost Invar steel frock method for repairing and mending according to claim 1, it is characterised in that：Using band Carrier thermal structure glued membrane as the bonding agent between repair prepreg and Invar steel frocks, increase adhesive property between the two it is same Inch, play a part of coefficient of expansion transition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711287389.2A CN107813098B (en) | 2017-12-07 | 2017-12-07 | A kind of fast and low-cost Invar steel tooling method for repairing and mending |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711287389.2A CN107813098B (en) | 2017-12-07 | 2017-12-07 | A kind of fast and low-cost Invar steel tooling method for repairing and mending |
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| Publication Number | Publication Date |
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| CN107813098A true CN107813098A (en) | 2018-03-20 |
| CN107813098B CN107813098B (en) | 2019-07-16 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB570749A (en) * | 1943-07-01 | 1945-07-20 | Lawrence Bertrand Scott | Improved means for repairing metal castings, forgings or other bodies |
| GB735758A (en) * | 1952-06-24 | 1955-08-31 | William Henley Bridges | Improvements in or relating to methods of repairing fractures in metal structures |
| CN202825103U (en) * | 2012-10-19 | 2013-03-27 | 陈迎军 | Circular plate clamping device used for strake weld repair |
| CN105196574A (en) * | 2015-10-27 | 2015-12-30 | 上海车功坊汽车服务有限公司 | Repair process for nonmetal member of motor vehicle |
| CN106956443A (en) * | 2017-03-20 | 2017-07-18 | 航天材料及工艺研究所 | The small thickness composite curved-surface structure of micron order type face precision and its forming method |
-
2017
- 2017-12-07 CN CN201711287389.2A patent/CN107813098B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB570749A (en) * | 1943-07-01 | 1945-07-20 | Lawrence Bertrand Scott | Improved means for repairing metal castings, forgings or other bodies |
| GB735758A (en) * | 1952-06-24 | 1955-08-31 | William Henley Bridges | Improvements in or relating to methods of repairing fractures in metal structures |
| CN202825103U (en) * | 2012-10-19 | 2013-03-27 | 陈迎军 | Circular plate clamping device used for strake weld repair |
| CN105196574A (en) * | 2015-10-27 | 2015-12-30 | 上海车功坊汽车服务有限公司 | Repair process for nonmetal member of motor vehicle |
| CN106956443A (en) * | 2017-03-20 | 2017-07-18 | 航天材料及工艺研究所 | The small thickness composite curved-surface structure of micron order type face precision and its forming method |
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| Publication number | Publication date |
|---|---|
| CN107813098B (en) | 2019-07-16 |
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Granted publication date: 20190716 Termination date: 20191207 |