CN114101011B - Crack plugging and repairing method - Google Patents
Crack plugging and repairing method Download PDFInfo
- Publication number
- CN114101011B CN114101011B CN202111332395.1A CN202111332395A CN114101011B CN 114101011 B CN114101011 B CN 114101011B CN 202111332395 A CN202111332395 A CN 202111332395A CN 114101011 B CN114101011 B CN 114101011B
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- Prior art keywords
- crack
- coating
- repairing
- base material
- adhesive
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/002—Pretreatement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/12—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by mechanical means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses a crack plugging and repairing method, relates to the field of explosives and powders, and aims to solve the problem of potential safety hazard caused by photo-thermal welding repair. The technical scheme adopted by the invention is as follows: firstly, cleaning the surface of a substrate with cracks, and polishing the surface to be smooth; then, coating a fluid adhesive at the crack of the base material; and finally, coating the crack of the base material with paint, compacting and leveling, wherein the paint is prepared by proportionally mixing atomic ash, a curing agent and a diluent. After the paint is dried, a separation layer can be coated on the outer surface of the paint, for example, an adhesive is coated on the outer surface of the paint, and the paint is naturally dried. And after the crack plugging and repairing are finished, carrying out leakage detection on the crack of the base material, if the crack is detected to be qualified, finishing the repairing, otherwise, repairing again. The method is suitable for plugging and repairing cracks on metal and nonmetal pipelines and equipment, avoids potential safety hazards caused by photo-thermal welding and repairing, and also avoids the deformation problem caused by welding and repairing.
Description
Technical Field
The invention relates to the field of explosives and powders, in particular to a method for plugging and repairing cracks on equipment or pipelines by adopting a coating and an adhesive.
Background
The products in the explosive industry are inflammable, explosive, easy to poison, high in temperature and pressure, corrosive and the like, and a large amount of metal equipment and pipelines are required in the production process. In the production process, because dangerous chemical raw materials such as acid-base to the corruption of equipment, the stirring vibration of the chemical reaction in the equipment to and reasons such as changes in the cold and hot temperature difference equipment damage is great, the crack appears easily, needs often overhaul the equipment to maintain.
Because the production continuity requirement of the explosive industry is high, the production line has large risk factors, and a large number of chemical equipment and pipelines are needed, the cracks are repaired by adopting a conventional welding method, the production needs to be suspended, the equipment and the pipelines are thoroughly and safely treated, the equipment and the pipelines are dismantled, and the like, and when the dismantling is inconvenient, the whole workshop needs to be safely treated, and then the welding repair can be carried out. Therefore, the conventional welding repair treatment method has the defects of long time consumption, large economic loss and the like.
Due to industry specificity, some equipment does not allow for mobile welding operations and conventional weld repairs are not allowed based on safety considerations. In addition, the large number of welds may cause equipment to deform, thereby interfering with equipment use.
Disclosure of Invention
The invention provides a crack plugging and repairing method, and aims to solve the problem of potential safety hazard caused by photo-thermal welding repair.
The technical scheme adopted by the invention is as follows: the crack plugging and repairing method comprises the following steps:
s1, cleaning the surface of the substrate with the crack, and polishing the surface to be flat. For example, the surface of the substrate is polished and cleaned of dust and debris.
S2, coating an adhesive at the crack of the base material, wherein the adhesive is in a fluid state and is universal or corresponds to the base material. For example, the base material is metal, the adhesive is metal welding AB glue, and the model is JL-109; the base material is nonmetal, and the adhesive is high-performance AB glue with the model of W1001.
S3, coating a paint at the crack of the base material, compacting and leveling, wherein the paint is prepared from atomic ash, a curing agent and a diluent according to the mass ratio of 100. Wherein the preferred mass ratio of the atomic ash, the curing agent and the diluent is 100.
Further, the method comprises the following steps: and S4, after the coating is dried, coating an isolation layer on the outer surface of the coating. Specifically, the method comprises the following steps: and (3) coating the same adhesive as the S2 on the outer surface of the coating, and naturally drying.
Further, the method comprises the following steps: s5, carrying out leakage detection on the cracks of the base material, and finishing the repair if the detection is qualified; otherwise, returning to S1 for repairing again.
The invention has the beneficial effects that: the coating and the adhesive are adopted to plug and repair the cracks on the base material, high-strength photo-thermal is not generated in the repairing process, potential safety hazards caused by photo-thermal welding repair are avoided, and the problem of base material deformation caused by welding repair is also avoided. The adhesive is filled in the cracks of the base material to play a role in plugging the cracks and bonding the base material and the coating, and the cracks are firmly plugged after the adhesive and the coating are cured. The crack plugging and repairing method eliminates the cracks of the base material, the adhesive filled in the cracks is firm and does not crack or fall off, and the crack plugging and repairing method has the characteristics of safe and reliable repair.
The crack plugging and repairing method is suitable for plugging and repairing metal and nonmetal pipelines and cracks on equipment, can be used for overhauling and plugging the existing equipment and pipelines, and can finish overhauling without time-consuming and labor-consuming safety treatment; the method can also be used for plugging gaps in the manufacturing process of new equipment, for example, the gaps on the outer surface of some special equipment structures are more, if all the equipment is welded, the equipment is deformed, but the gaps must be eliminated, so that potential safety hazards caused by medicine entering can be prevented, normal-temperature repair can be realized according to the method, and the deformation problem caused by welding repair can be avoided.
After the coating is dried, the outer surface of the coating is coated with an isolation layer, so that the coating and various internal structure layers of the coating are prevented from being corroded by the outside. After the crack is plugged and repaired, the crack of the base material is subjected to leakage detection, so that the repairing quality can be ensured.
Detailed Description
The present invention will be further described with reference to the following examples. The fracture plugging and repairing method comprises the following steps:
s1, cleaning the surface of the substrate with cracks, and polishing the surface to be flat
The substrate can be metal or nonmetal, and can be a crack on used equipment or a pipeline, or a crack on new equipment. The surface of the substrate with cracks is required to be processed cleanly, the better the surface processing quality of the substrate is, the better the repairing effect is, dust or impurities are left on the surface of the substrate, the bonding is not firm, and the problems of leakage, cracking and falling off can be caused. The cleaning method of the substrate is determined according to the material of the substrate, for example, the substrate is made of metal, the substrate is polished, and then the dust and metal chips on the surface of the substrate are wiped clean by a clean towel.
S2, coating adhesive on the crack of the base material
The coating range of the adhesive should cover the whole repair surface and be uniformly distributed, and the adhesive is in a fluid state, so that the adhesive can automatically flow into the crack to be repaired. The adhesive can eliminate small cracks which can not be penetrated by the coating and can firmly adhere the coating. The adhesive is the existing general adhesive or the existing special adhesive corresponding to the material of the base material. The adhesive can be a single preparation or an AB adhesive preparation prepared in situ. For example, the base material is metal, the adhesive is metal welding AB glue, and the model is JL-109; the base material is nonmetal, and the adhesive is high-performance AB glue with the model of W1001.
S3, coating the crack of the base material with a coating, compacting and leveling
The coating is prepared from the following components in parts by mass, namely, atomic ash, a curing agent and a diluent, wherein the mass ratio is 100. The putty is prepared by mixing and stirring the putty, the curing agent and the diluent according to the proportion, and has proper dryness and humidity, convenient smearing and quick drying time. The coating should be applied before the adhesive is dried, and the coating should be compacted and compacted during application to completely fill the gap, and the surface should be smoothed after application.
And finishing the fracture plugging and repairing. In order to protect the coating from being corroded by the outside, after the coating in the S3 is dried, a barrier layer can be continuously coated on the outer surface of the coating. For example, the paint is automatically hardened after drying, the same adhesive as in S2 is applied to the surface of the paint, and the paint is naturally dried, thereby completing the repair.
In order to detect the repairing effect, the crack plugging repairing method also comprises the steps of carrying out leakage detection on the crack of the base material, and finishing repairing if the crack is detected to be qualified; otherwise, returning to S1 for repairing again.
Example 1: and (3) when a certain device of the explosive production line leaks, performing surface treatment on a leakage point, bonding by using an adhesive, preparing a coating, coating the coating, performing leakage detection after the coating is completely dried, checking whether the device has no leakage, and completing the overhaul of the device.
Example 2: when a certain heating device is newly manufactured, the number of cracks of the shell is large, and the deformation of the welding cleaned cracks is large, so that the appearance is influenced. After the surface of the crack is treated, the adhesive is coated, then the coating is prepared and coated, and after the coating is dried, a layer of adhesive is coated on the surface of the coating, so that the equipment deformation is small, and the crack and the falling phenomenon are avoided after the coating is used for several months.
The invention adopts the coating and the adhesive to carry out the plugging and the repair of the crack. When the adhesive is used alone, the adhesive has fluidity, and therefore, the amount of the adhesive used is large, the handling is difficult, the drying time of the adhesive is slow, and the quality of the bonded surface is poor. If the coating is used alone, the coating has poor bonding stability and may fall off after being used for a period of time. The paint and the adhesive are matched for use, so that the sealing property and the firmness can be ensured, and the using effect is good.
Claims (4)
1. The crack plugging and repairing method is characterized by comprising the following steps: the method comprises the following steps:
s1, cleaning the surface of a base material with cracks, and polishing the surface to be flat;
s2, coating an adhesive at the crack of the base material, wherein the adhesive is in a fluid state, the base material is metal, and the adhesive is metal welding AB glue with the model of JL-109;
s3, coating a paint at the crack of the base material, compacting and leveling, wherein the paint is prepared from atomic ash, a curing agent and a diluent according to the mass ratio of (100);
s4, after the coating is dried, coating an isolation layer on the outer surface of the coating;
s5, carrying out leakage detection on the crack of the base material, and finishing maintenance if the detection is qualified; otherwise, returning to S1 for repairing again.
2. The fracture closure repair method of claim 1, wherein: and S1, grinding and polishing the surface of the base material, and cleaning dust and debris on the surface of the base material.
3. The fracture plugging repair method of claim 1, wherein: in S3, the mass ratio of the atomic ash, the curing agent and the diluent is (100).
4. The fracture plugging repair method of any one of claims 1 to 3, wherein: and S4, coating the same adhesive as the adhesive in S2 on the outer surface of the coating, and naturally drying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111332395.1A CN114101011B (en) | 2021-11-11 | 2021-11-11 | Crack plugging and repairing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111332395.1A CN114101011B (en) | 2021-11-11 | 2021-11-11 | Crack plugging and repairing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114101011A CN114101011A (en) | 2022-03-01 |
| CN114101011B true CN114101011B (en) | 2023-01-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111332395.1A Active CN114101011B (en) | 2021-11-11 | 2021-11-11 | Crack plugging and repairing method |
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| Country | Link |
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| CN (1) | CN114101011B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103321442A (en) * | 2013-06-14 | 2013-09-25 | 浙江建设职业技术学院 | Self-compensating repair structure and process for internal stress cracking of inner wall heat insulating wall surface |
| CN107774548A (en) * | 2016-08-31 | 2018-03-09 | 车急修汽车科技有限公司 | The process that a kind of car paint is quickly repaired |
| JP2019093680A (en) * | 2017-11-28 | 2019-06-20 | 株式会社ダイコーゴム | Method for repairing window mall retainer and repairing kit |
| CN112555563A (en) * | 2020-12-16 | 2021-03-26 | 常州敏兆建设发展有限公司 | Drain pipe lining repairing material and repairing method applying same |
| CN112625468A (en) * | 2019-09-24 | 2021-04-09 | 舾蒙新材料科技(上海)有限公司 | Multifunctional composite coating and preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9127550B2 (en) * | 2012-08-10 | 2015-09-08 | Siemens Energy, Inc. | Turbine superalloy component defect repair with low-temperature curing resin |
-
2021
- 2021-11-11 CN CN202111332395.1A patent/CN114101011B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103321442A (en) * | 2013-06-14 | 2013-09-25 | 浙江建设职业技术学院 | Self-compensating repair structure and process for internal stress cracking of inner wall heat insulating wall surface |
| CN107774548A (en) * | 2016-08-31 | 2018-03-09 | 车急修汽车科技有限公司 | The process that a kind of car paint is quickly repaired |
| JP2019093680A (en) * | 2017-11-28 | 2019-06-20 | 株式会社ダイコーゴム | Method for repairing window mall retainer and repairing kit |
| CN112625468A (en) * | 2019-09-24 | 2021-04-09 | 舾蒙新材料科技(上海)有限公司 | Multifunctional composite coating and preparation method thereof |
| CN112555563A (en) * | 2020-12-16 | 2021-03-26 | 常州敏兆建设发展有限公司 | Drain pipe lining repairing material and repairing method applying same |
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| Publication number | Publication date |
|---|---|
| CN114101011A (en) | 2022-03-01 |
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