JPS6142670B2 - - Google Patents
Info
- Publication number
- JPS6142670B2 JPS6142670B2 JP13548181A JP13548181A JPS6142670B2 JP S6142670 B2 JPS6142670 B2 JP S6142670B2 JP 13548181 A JP13548181 A JP 13548181A JP 13548181 A JP13548181 A JP 13548181A JP S6142670 B2 JPS6142670 B2 JP S6142670B2
- Authority
- JP
- Japan
- Prior art keywords
- spot welding
- wax
- rust preventive
- area
- sheet metal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000003466 welding Methods 0.000 claims description 20
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 17
- 230000003449 preventive effect Effects 0.000 claims description 12
- 238000004070 electrodeposition Methods 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 5
- 239000002904 solvent Substances 0.000 claims description 4
- 238000005406 washing Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000010422 painting Methods 0.000 claims 2
- 239000011248 coating agent Substances 0.000 description 8
- 238000000576 coating method Methods 0.000 description 8
- 230000000873 masking effect Effects 0.000 description 7
- 238000010276 construction Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D27/00—Connections between superstructure or understructure sub-units
- B62D27/02—Connections between superstructure or understructure sub-units rigid
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
Description
【発明の詳細な説明】
本発明は自動車車体の組立方法に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of assembling an automobile body.
本発明の目的は、電着塗装が施される自動車車
体の板金部品のスポツト溶接予定部の保護並びに
スポツト溶接の際の保護解除の作業の容易且つ迅
速化と、確実なスポツト溶接を得ることである。 The purpose of the present invention is to protect the spot welding area of a sheet metal part of an automobile body to which electrodeposition coating is applied, to facilitate and speed up the work of removing protection during spot welding, and to obtain reliable spot welding. be.
第１図に示すようなキヤブを組立てる場合、例
えば第２図に示すようにフロントコンストラクシ
ヨンのフロントパネル２とフロアパネル５を定着
したフロアコンストラクシヨン４のフロントクロ
スメンバ３とスポツト溶接６によつて溶接結合し
ている。このフロントパネル２等は電着塗装が施
され、補給用あるいは組立構成部品として格納保
管並びに出荷される。従つて、スポツト溶接予定
部は錆が発生しないように保護する必要がある。 When assembling a cab as shown in FIG. 1, for example, as shown in FIG. 2, the front panel 2 of the front construction and the floor panel 5 are joined by spot welding 6 to the front cross member 3 of the floor construction 4, which is fixed. Welded together. The front panel 2 and the like are electroplated and stored and shipped as supplies or assembled components. Therefore, it is necessary to protect the spot welding area from rust.
従来では、第３図に示すように板金部品１０の
スポツト溶接予定部１０ａも含めて全体に電着塗
装１１を施し、スポツト溶接の際にスポツト溶接
予定部１０ａの塗装面をサンダーで削り落す方法
や、第４図に示すように、電着塗装前の板金部品
１０のスポツト溶接予定部１０ａに接着テープ１
３によりマスキングを施して電着塗装を施す方法
とが採用されている。 Conventionally, as shown in FIG. 3, electrodeposition coating 11 is applied to the entire sheet metal part 10, including the area 10a to be spot welded, and the painted surface of the area 10a to be spot welded is scraped off with a sander during spot welding. Alternatively, as shown in FIG.
3, a method of masking and electrodeposition coating is adopted.
前者の方法は塗装膜によつてスポツト溶接予定
部は完全に防錆されているが、スポツト溶接の際
にサンダーによる削除作業を必要とし能率性に欠
けることと、スポツト溶接予定部の板面に傷がつ
く問題がある。 In the former method, the area to be spot welded is completely rust-proofed by the paint film, but it is inefficient as it requires removal work with a sander during spot welding, and the plate surface of the area to be spot welded is damaged. There is a problem with scratches.
一方、後者の方法は前記前者の問題を解決して
いるが、曲線部のシールが完全にできないことと
貼付の手間を要する。また、電着塗装後の乾燥炉
の中で高温にさらされるため、接着テープ１３の
接着剤が熱変質し自然剥離したり、保管中あるい
は海外への船積み輸送中に船倉内の高温多湿によ
り経時変質し自然剥離して防錆保護の役目を充分
果さない不具合がある。 On the other hand, although the latter method solves the former problem, it cannot completely seal the curved portion and requires a lot of effort. In addition, since it is exposed to high temperatures in the drying oven after electrodeposition coating, the adhesive of the adhesive tape 13 may deteriorate due to heat and naturally peel off, or may deteriorate over time due to high temperature and humidity in the hold during storage or shipping overseas. There is a problem with deterioration and natural peeling, which does not fully fulfill the role of anti-corrosion protection.
本発明は上記のような従来の不具合を解消した
組立方法を提供するものである。 The present invention provides an assembly method that eliminates the above-mentioned conventional problems.
本発明方法は第５図に示すように、電着塗装前
の自動車車体板金部品１０のスポツト溶接予定部
１０ａにワツクス系防錆剤（乾燥時、硬質被膜を
形成する溶剤希釈形錆止め油）を刷毛等により塗
布して自然乾燥によつて固化し、ワツクス系防錆
剤によるマスキング１４を施す。しかる後に電着
塗装１１を施し、常法により水洗並びに乾燥す
る。本実施例におけるワツクス系防錆剤は、精選
アスフアルトを基材に、石油系溶剤を溶媒として
希釈分散させ、防錆添加剤を配合した低粘度の液
状のものである。（JIS K2246−1980溶剤希釈形
錆止め油 １種 NP−１ 相当）
この板金部品１０は前記した通り補給用あるい
は組付構成部品としてストツク並びに出荷輸送さ
れ、組立工場にて自動車車体の完成品に組立てら
れる。その際のスポツト溶接前にマスキング１４
をワツクス系防錆剤の溶解に適した有機溶剤（例
えばシンナー）で溶かして拭き取つて除去し、ス
ポツト溶接予定部１０ａに板金部品１０の地金を
露出させてスポツト溶接装置により溶接結合する
のである。 As shown in FIG. 5, the method of the present invention is to apply a wax-based rust preventive agent (solvent-diluted rust preventive oil that forms a hard film when dry) to a spot welding area 10a of an automobile body sheet metal part 10 before electrodeposition coating. It is applied with a brush or the like, hardened by natural drying, and then masked 14 with a wax-based rust preventive agent. Thereafter, an electrodeposition coating 11 is applied, followed by washing with water and drying in a conventional manner. The wax-based rust preventive agent in this example is a low-viscosity liquid that is prepared by diluting and dispersing selected asphalt as a base material using a petroleum solvent as a solvent, and blending rust preventive additives therein. (Equivalent to JIS K2246-1980 Solvent-diluted rust preventive oil Class 1 NP-1) As described above, this sheet metal part 10 is stocked and shipped as a supply or assembly component, and is assembled into a finished car body at an assembly factory. It will be done. Masking 14 before spot welding at that time
is removed by dissolving it with an organic solvent suitable for dissolving wax-based rust preventives (for example, thinner) and wiping it off, exposing the bare metal of the sheet metal part 10 at the area 10a to be spot welded, and welding it using a spot welding device. be.
本発明の方法によると次のような効果を有して
いる。 The method of the present invention has the following effects.
電着塗装前に板金部品１０のスポツト溶接予定
部１０ａのマスキング１４は、当初液状タイプの
ワツクス系防錆剤を刷毛等により塗布するもので
あるから、曲線部分にもシールが自由に行われ、
自然乾燥による固化によつて完全な防錆が得られ
る。また、高温、多湿に対しても充分耐えるの
で、保管中や輸送中等に自然剥離することがなく
確実に防錆状態で保護している。 The masking 14 of the spot welding area 10a of the sheet metal part 10 before electrodeposition coating is initially applied by applying a liquid type wax-based rust preventive agent with a brush or the like, so that the sealing can be performed freely even on curved parts.
Complete rust prevention is achieved by solidification through natural drying. In addition, it can withstand high temperatures and high humidity, so it does not naturally peel off during storage or transportation, and is protected against rust.
さらに、スポツト溶接の際には、溶剤によつて
ワツクス系防錆剤のマスキング１４を溶解させ拭
きとるだけの簡単な作業でスポツト溶接予定部１
０ａの地金を容易に露出することができる。 Furthermore, during spot welding, the spot welding area 1 can be easily removed by dissolving the wax-based rust preventive masking 14 with a solvent and wiping it off.
The bare metal of 0a can be easily exposed.
よつて本発明によると、電着塗装板金部品のス
ポツト溶接予定部のマスキングが簡単且つ曲線部
を含めて確実に施され、防錆保護を完全とし、そ
の除去も簡単、迅速に行われるので、スポツト溶
接による組立作業が能率的にしかも確実な溶接が
得られる利点がある。 Therefore, according to the present invention, the masking of the spot welding area of the electrodeposition coated sheet metal part can be easily and reliably performed including the curved part, the rust prevention is completely protected, and the masking can be easily and quickly removed. The assembly work by spot welding has the advantage of being efficient and ensuring reliable welding.
第１図は自動車車体の斜視図、第２図は第１図
−線断面図、第３図及び第４図は従来のスポ
ツト溶接予定部の防錆構造を示す断面図、第５図
は本発明の組立方法に用いられるスポツト溶接予
定部の防錆構造の断面図である。
１０……板金部品、１０ａ……スポツト溶接予
定部、１１……電着塗装、１４……ワツクス系防
錆剤によるマスキング。
Fig. 1 is a perspective view of an automobile body, Fig. 2 is a sectional view taken along the line of Fig. 1, Figs. FIG. 3 is a sectional view of a rust-proof structure of a spot welding area used in the assembly method of the invention. 10... Sheet metal parts, 10a... Areas to be spot welded, 11... Electrodeposition coating, 14... Masking with wax-based rust preventive agent.
Claims (1)
溶接予定部にワツクス系防錆剤を塗布してマスキ
ングし、電着塗装、水洗並びに乾燥した後のスポ
ツト溶接の際に溶剤にて前記ワツクス系防錆剤を
溶解除去してスポツト溶接することを特徴とする
自動車車体の組立方法。1 Apply a wax-based rust preventive agent to the area to be spot welded on an automobile body sheet metal part before electrodeposition painting to mask it, and apply the wax-based rust preventive agent with a solvent during spot welding after electrodeposition painting, washing with water, and drying. A method for assembling an automobile body, characterized by spot welding after dissolving and removing a rust agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13548181A JPS5836778A (en) | 1981-08-31 | 1981-08-31 | Vehicle body assembling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13548181A JPS5836778A (en) | 1981-08-31 | 1981-08-31 | Vehicle body assembling method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5836778A JPS5836778A (en) | 1983-03-03 |
| JPS6142670B2 true JPS6142670B2 (en) | 1986-09-22 |
Family
ID=15152720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13548181A Granted JPS5836778A (en) | 1981-08-31 | 1981-08-31 | Vehicle body assembling method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5836778A (en) |
-
1981
- 1981-08-31 JP JP13548181A patent/JPS5836778A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5836778A (en) | 1983-03-03 |
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