CN112658681A - Welding and gluing mixed connection method for stainless steel vehicle body framework and counterweight - Google Patents
Welding and gluing mixed connection method for stainless steel vehicle body framework and counterweight Download PDFInfo
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- CN112658681A CN112658681A CN202011468785.7A CN202011468785A CN112658681A CN 112658681 A CN112658681 A CN 112658681A CN 202011468785 A CN202011468785 A CN 202011468785A CN 112658681 A CN112658681 A CN 112658681A
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Abstract
The utility model provides a stainless steel automobile body skeleton and counter weight body welding and gluey mixed connection method which characterized in that: fixing epoxy high-temperature-resistant resin in the central area of the counterweight body, and connecting the counterweight body with a vehicle body framework by matching with welding modes of spot welding and arc welding; the conductive sealant is adopted to seal the inner surface of the counterweight body, so that the requirement of spot welding is met, and the problem that the installation of the counterweight body is influenced by position limitation and the problem that the gluing curing time is long is solved through the combined application of welding and bonding. The fastening of the counterweight body is carried out through external spot welding and broken welding, so that the counterweight body is prevented from moving in position in the adhesive curing period, and the production period is saved. The spot welding operation is completed by adopting the conductive sealant, and after the conductive sealant is cured, an isolation layer is formed between the stainless steel vehicle body and the counterweight body, so that electrochemical corrosion between the counterweight body and the stainless steel vehicle body is avoided.
Description
Technical Field
The invention belongs to the field of manufacturing of stainless steel car bodies of urban railway passenger cars, and particularly relates to a welding and gluing hybrid connection method between a counterweight body and a car body framework.
Background
In the manufacturing process of the prior stainless steel railway passenger car body, the car body structure is verified through static load and dynamic load tests, the car body structure needs to be subjected to counterweight after verification, and the reinforcing position is subjected to interference of other parts and is in a welding connection mode. The welding requirements cannot be met due to the influence of the shape of the welding gun. Meanwhile, when the counterweight body is connected with stainless steel by different materials, the problem of dissimilar metal corrosion can occur. Therefore, research and development of a new connecting method of the counterweight body and the vehicle body framework structure are problems which are urgently needed to be solved in the current railway vehicle industry.
Disclosure of Invention
The invention aims to solve the problem of connection between a counterweight and a vehicle body when the welding position is narrow and the operation is limited, and simultaneously solve the problem of dissimilar metal corrosion caused by connection between the counterweight and stainless steel with different materials.
In order to achieve the purpose, the invention provides a welding and gluing mixed connection method of a stainless steel vehicle body framework and a counterweight, which is characterized in that: fixing epoxy high-temperature-resistant resin in the central area of the counterweight body, and connecting the counterweight body with a vehicle body framework by matching with welding modes of spot welding and arc welding; and the conductive sealant is adopted to seal the inner surface of the counterweight body, so that the spot welding requirement is met.
Preferably, when the weight body is fixed, the central area is the middle area of the golden section line of the weight body, and the epoxy high-temperature resistant resin is coated on the central area in an S shape.
Preferably, the epoxy high-temperature resistant resin is prepared from the following main agents: curing agent: the filler is mixed according to the mass ratio of 1: 1: 1, preparation.
Preferably, the thickness of the epoxy high temperature resistant resin is 300g-500g/m2。
Preferably, after welding, a 360-degree glue applying injector is adopted to apply glue to the positions, without welding seams, on the periphery of the counterweight body, so that the broken welding positions are sealed, and the problem of glue application at narrow positions is solved.
The invention solves the problem that the installation of the counterweight body is influenced by position limitation and the problem of long adhesive curing time by combined application of welding and bonding. The fastening of the counterweight body is carried out through external spot welding and broken welding, so that the counterweight body is prevented from moving in position in the adhesive curing period, and the production period is saved. The spot welding operation is completed by adopting the conductive sealant, and after the conductive sealant is cured, an isolation layer is formed between the stainless steel vehicle body and the counterweight body, so that electrochemical corrosion between the counterweight body and the stainless steel vehicle body is avoided.
Drawings
FIG. 1 is a schematic diagram of a sizing injector according to the present invention.
Detailed Description
Referring to fig. 1, the embodiment of the present invention is implemented by the following steps:
1) preparing epoxy high-temperature-resistant resin (mass ratio), and preparing a main agent: curing agent: the filler is 1: 1: 1;
2) taking the middle area of the golden section line of the counterweight body as the central area of the counterweight body, and coating the central area with the epoxy high-temperature resistant resin in an S shape, wherein the thickness of the epoxy high-temperature resistant resin is 300-500 g/m2；
3) Coating epoxy high-temperature-resistant resin on the inaccessible welding area of the contact surface of the counterweight body and the vehicle body, wherein the thickness of the epoxy high-temperature-resistant resin is 300-500 g/m2；
4) Coating a non-bonding area of a contact surface of the counterweight body and the vehicle body with a conductive sealant;
5) assembling the counterweight body on the vehicle body, and pressing the counterweight body integrally to ensure that the contact surfaces are completely attached;
6) fixing the counterweight body in a spot welding manner, wherein in the fixing process, the coated conductive sealant is required to be uniformly extruded out of the periphery of the counterweight body, so that the conductive sealant is ensured to be full;
7) after the fixing, welding the periphery of the counterweight body in a broken welding mode;
8) and after welding, gluing the periphery of the counterweight body without welding seams by adopting a 360-degree gluing injector, and sealing the broken welding position. By using the special-shaped glue injector, the glue applying angle is expanded to 360 degrees, and the limitation of the space position is solved.
In the glue injector, 1 is a base, 2 is a rear glue outlet nozzle, 3 is a front glue outlet nozzle, the front glue outlet nozzle 3 can rotate 360 degrees relative to the rear glue outlet nozzle 2, and the installation included angle alpha of the front glue outlet nozzle 3 relative to the rear glue outlet nozzle 2 is 75 degrees.
Claims (5)
1. The utility model provides a stainless steel automobile body skeleton and counter weight body welding and gluey mixed connection method which characterized in that: fixing epoxy high-temperature-resistant resin in the central area of the counterweight body, and connecting the counterweight body with a vehicle body framework by matching with welding modes of spot welding and arc welding; and the conductive sealant is adopted to seal the inner surface of the counterweight body, so that the spot welding requirement is met.
2. The welding and gluing hybrid connection method of the stainless steel vehicle body framework and the counterweight according to claim 1, characterized in that: when the counterweight body is fixed, the middle area of the golden section line of the counterweight body is taken as a central area, and the epoxy high-temperature resistant resin is coated on the central area in an S shape.
3. The welding and gluing hybrid connection method of the stainless steel vehicle body framework and the counterweight according to claim 1, characterized in that: the epoxy high-temperature resistant resin consists of a main agent: curing agent: the filler is mixed according to the mass ratio of 1: 1: 1, preparation.
4. The welding and gluing hybrid connection method of the stainless steel vehicle body framework and the counterweight according to claim 1, characterized in that: the thickness of the coating epoxy high-temperature resistant resin is 300g-500g/m2。
5. The welding and gluing hybrid connection method of the stainless steel vehicle body framework and the counterweight according to claim 1, characterized in that: after welding, a 360-degree glue applying injector is adopted to apply glue at the positions without welding seams around the counterweight body, the welding broken positions are sealed, and the problem of glue application at narrow positions is solved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011468785.7A CN112658681B (en) | 2020-12-15 | 2020-12-15 | Welding and gluing hybrid connection method for stainless steel vehicle body framework and counterweight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011468785.7A CN112658681B (en) | 2020-12-15 | 2020-12-15 | Welding and gluing hybrid connection method for stainless steel vehicle body framework and counterweight |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112658681A true CN112658681A (en) | 2021-04-16 |
| CN112658681B CN112658681B (en) | 2022-11-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011468785.7A Active CN112658681B (en) | 2020-12-15 | 2020-12-15 | Welding and gluing hybrid connection method for stainless steel vehicle body framework and counterweight |
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| CN (1) | CN112658681B (en) |
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| CN102500869A (en) * | 2011-11-01 | 2012-06-20 | 上海交通大学 | Novel metal material arc spot welding method |
| JP2012152787A (en) * | 2011-01-26 | 2012-08-16 | Nippon Steel Corp | Dissimilar metal bonded joint, and dissimilar metal bonding method |
| CN103480966A (en) * | 2013-10-15 | 2014-01-01 | 吉林大学 | Austenite stainless steel lap-over laser welding method |
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| CN105033421A (en) * | 2015-03-23 | 2015-11-11 | 上海交通大学 | Arc weld bonding connecting system and method for dissimilar metals |
| CN105149714A (en) * | 2015-09-21 | 2015-12-16 | 上海交通大学 | Non-indentation adhesive welding connection method for metal plates |
| CN107262896A (en) * | 2016-04-08 | 2017-10-20 | 通用汽车环球科技运作有限责任公司 | By the method for aluminium resistance spot welding to steel |
| CN107427950A (en) * | 2015-03-13 | 2017-12-01 | 奥托库姆普有限公司 | The method for the metal_based material being not directly welded to one another using sept welding |
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2020
- 2020-12-15 CN CN202011468785.7A patent/CN112658681B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101405105A (en) * | 2006-02-23 | 2009-04-08 | 株式会社神户制钢所 | Joint product between steel product and aluminum material, spot welding method for the joint product, and electrode chip for use in the joint product |
| US20080026247A1 (en) * | 2006-07-25 | 2008-01-31 | Nissan Motor Co., Ltd. | Method and apparatus for bonding dissimilar materials made from metals |
| CN101288930A (en) * | 2007-04-20 | 2008-10-22 | 振发实业股份有限公司 | Manufacturing method of 3C frame |
| JP2012152787A (en) * | 2011-01-26 | 2012-08-16 | Nippon Steel Corp | Dissimilar metal bonded joint, and dissimilar metal bonding method |
| CN102500869A (en) * | 2011-11-01 | 2012-06-20 | 上海交通大学 | Novel metal material arc spot welding method |
| CN103480966A (en) * | 2013-10-15 | 2014-01-01 | 吉林大学 | Austenite stainless steel lap-over laser welding method |
| CN107427950A (en) * | 2015-03-13 | 2017-12-01 | 奥托库姆普有限公司 | The method for the metal_based material being not directly welded to one another using sept welding |
| CN105033421A (en) * | 2015-03-23 | 2015-11-11 | 上海交通大学 | Arc weld bonding connecting system and method for dissimilar metals |
| CN104985399A (en) * | 2015-06-30 | 2015-10-21 | 苏州华日金菱机械有限公司 | Weld bonding method for car body cover |
| CN105149714A (en) * | 2015-09-21 | 2015-12-16 | 上海交通大学 | Non-indentation adhesive welding connection method for metal plates |
| CN107262896A (en) * | 2016-04-08 | 2017-10-20 | 通用汽车环球科技运作有限责任公司 | By the method for aluminium resistance spot welding to steel |
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| CN112658681B (en) | 2022-11-08 |
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