JP2019140089A - Terminal-attached electric wire, method for manufacturing the same, and wiring harness - Google Patents

Abstract

An electric wire with a terminal capable of improving waterproofness, corrosion resistance and conductivity at a relatively low cost, a manufacturing method thereof, and a wire harness.
An electric wire 20 having a conductor 21 and an electric wire covering material covering the conductor, a crimp terminal 10 connected to the conductor of the electric wire, and a coating agent C applied to a region including a contact portion between the conductor and the crimp terminal. And the coating agent is made of an alkyd resin.
[Selection] Figure 1

Description

  The present invention relates to an electric wire with a terminal, a manufacturing method thereof, and a wire harness.

  Various electronic devices are mounted on vehicles such as automobiles, and wire harnesses using electric wires with terminals are routed to supply electric power to these electronic devices and transmit various signals.

For electric wires with terminals, the insulation coating at the ends of the wires made of aluminum or the like is removed (peeled) to expose the conductor, and this conductor is added at the front end of the terminal fitting made of copper, copper alloy, or the like. What is fastened and fixed is common.
The exposed conductor and the terminal fitting are brought into close contact with each other in a pressed state.

Here, when the conductor and terminal fitting are made of dissimilar metals, if water or chemicals adheres to the connection part, galvanic corrosion will occur on the conductor or terminal fitting, resulting in deterioration of the electric wire or wire harness with terminals. End up.
Therefore, various techniques relating to a terminal-attached electric wire having a waterproof structure or an anticorrosion structure at a connection portion have been proposed (see, for example, Patent Document 1).

JP, 2015-151617, A

However, the technique disclosed in Patent Document 1 has the following disadvantages.
That is, since the benzotriazole rust preventive agent and the like is an insulator, there is a disadvantage that electrical connection with the electric wire is hindered when it is applied also to the exposed terminal cross section.

In addition, when an ultraviolet curable resin, a photocurable resin, or the like is applied after the terminal metal fitting and the electric wire are joined, there is a possibility that a gap may be generated due to material shrinkage due to cross-linking, resulting in poor sealing performance.
Moreover, the benzotriazole type | system | group rust preventive agent etc. had a three-layer structure, and there also existed a problem that the number of processes increased and the management cost increased.

  This invention is made | formed in view of the said subject, and it aims at providing the electric wire with a terminal which can improve waterproofness and corrosion resistance at comparatively low cost, its manufacturing method, and a wire harness.

  In order to achieve the above object, a terminal-attached electric wire according to the first aspect of the invention includes a conductor and an electric wire having a wire covering material covering the conductor, a crimp terminal connected to the conductor of the electric wire, the conductor, and the wire And a film formed of a coating applied to a region including the contact portion with the crimp terminal, wherein the coating is formed of an alkyd resin.

  According to a second aspect of the present invention, in the electric wire with a terminal according to the first aspect of the present invention, the conductor and the crimp terminal are made of the same metal or different metals.

  The terminal-attached electric wire according to a third aspect of the invention is the invention according to the first or second aspect, wherein the alkyd resin comprises a short oil alkyd resin, a middle oil alkyd resin, a long oil alkyd resin, a modifier, It contains any of a modified alkyd resin combined.

  The electric wire with a terminal according to the invention of claim 4 is the invention according to any one of claims 1 to 3, wherein the modifier is rosin, phenol resin, epoxy resin, acrylic resin, vinyl monomer. And at least one of silicone resins.

  The electric wire with a terminal according to the invention of claim 5 is the invention according to any one of claims 1 to 4, wherein the coating agent is an additive, an antioxidant, an anticorrosive, and an antirust. Agents and fillers may be included.

  The electric wire with a terminal according to the invention described in claim 6 is the invention according to any one of claims 1 to 5, wherein the coating agent includes, as an additive, a colorant, a crosslinking terminator, and a crosslinking accelerator. An agent may be included.

  A terminal-attached electric wire according to a seventh aspect of the invention is characterized in that, in the invention according to any one of the first to sixth aspects, the coating agent is diluted with a solvent.

  According to an eighth aspect of the present invention, in the electric wire with terminal according to the seventh aspect, the alkyd resin is composed of a water-dispersible alkyd resin, and the solvent is water.

  The electric wire with a terminal according to the invention described in claim 9 is the invention according to any one of claims 1 to 8, wherein the coating agent includes a main curing agent that ensures anticorrosion performance, and a manufacturing process. And the temporary curing agent is composed of the alkyd resin, and the temporary curing agent is composed of an immediately curable resin or a solvent.

  The electric wire with a terminal according to the invention of claim 10 is the invention according to claim 9, wherein the alkyd resin contains a phenol-modified alkyd resin, and the rapidly curable resin or solvent contains an ultraviolet curable resin. It is characterized by that.

  The electric wire with a terminal according to the invention of claim 11 is the invention according to any one of claims 1 to 10, wherein the contact-side surface of the crimp terminal to which the coating agent is applied The electric wire with a terminal according to any one of claims 1 to 10, comprising an end surface of the conductor.

  The manufacturing method of the electric wire with a terminal which concerns on invention of Claim 12 is an application | coating comprised by the process which connects a crimp terminal to the conductor of an electric wire, and the area | region including the connection part of the said conductor and the said crimp terminal. A step of applying an agent; and a step of curing the coating agent to form a film.

According to a thirteenth aspect of the present invention, there is provided a method of manufacturing a terminal-attached electric wire according to the twelfth aspect of the present invention, further comprising a step of irradiating the coating agent with a laser beam to dry the coating agent.
A wire harness according to a fourteenth aspect of the invention is characterized by using the terminal-attached electric wire according to any one of the first to eleventh aspects.

  ADVANTAGE OF THE INVENTION According to this invention, the electric wire with a terminal which can improve waterproofness and corrosion resistance at comparatively low cost, its manufacturing method, and a wire harness can be provided.

It is a perspective view which shows the whole structure of the electric wire with a terminal which concerns on embodiment. It is process drawing (a) which shows the manufacturing process of the terminal metal fitting used for the electric wire with a terminal concerning an embodiment. It is a perspective view which shows a continuation to the manufacturing process of the electric wire with a terminal shown in FIG. It is a perspective view which shows a continuation to the manufacturing process of the electric wire with a terminal shown in FIG. It is sectional drawing which shows the cross section of the principal part of the electric wire with a terminal which concerns on embodiment. It is a graph which shows the experimental result of the comparative example which does not prevent corrosion, and the test piece which protected with the coating agent.

[First Embodiment]
With reference to FIGS. 1-6, the electric wire E1 with a terminal which concerns on the 1st Embodiment of this invention is demonstrated.

(About the configuration example of the electric wire with terminal)
FIG. 1 is a perspective view showing an overall configuration of a terminal-attached electric wire E1 according to the present embodiment.
The electric wire E1 with a terminal according to the present embodiment includes a conductor 21 made of aluminum or an alloy based on aluminum, an electric wire 20 having an electric wire covering material 22 covering the conductor 21, and a conductor 21 of the electric wire 20. It is comprised from the crimp terminal (metal terminal) 10 to connect, and the membrane | film | coat F of the coating agent C1 apply | coated and formed in area | region A1 including the connection part of the conductor 21 and the crimp terminal 10. FIG.
The coating F of the coating agent C1 is formed around the end of the conductor 21 or the entire exposed portion of the conductor 21 (see FIG. 5 and the like).

  Here, the coating agent C1 is made of an alkyd resin. The alkyd resin is a synthetic resin made of polyester produced by a condensation reaction between a polyhydric alcohol and a polybasic acid.

The alkyd resin applied to the present embodiment includes any of short oil alkyd resin, medium oil alkyd resin, long oil alkyd resin, and modified alkyd resin combined with a modifier.
In addition, the modifier may include at least one of rosin, phenol resin, epoxy resin, acrylic resin, vinyl monomer, and silicone resin.
The coating agent C1 may be generated by mixing two or more kinds of various alkyd resins and modifiers.
Further, the coating agent C1 may contain an antioxidant, an anticorrosive, a rust inhibitor, a drying accelerator and a filler as additives.

  Examples of the drying accelerator include cobalt octylate, manganese octylate, zinc octylate, and cobalt naphthenate. By using a drying accelerator, the drying time can be shortened.

Furthermore, the coating agent C1 may include a colorant as an additive. In this case, whether the application state of the coating agent C or the formation state of the film F on the application surface can be easily confirmed by the presence or absence of the color and the concentration, and more reliable waterproofness and corrosion resistance can be ensured. it can.
Carbon black or the like can be used as the colorant.

The coating agent C1 can be diluted with a predetermined solvent. In this case, the fluidity of the coating agent C1 itself can be improved, and the complicated shape and structure such as the conductor 21 and the crimping terminal 10 and the metal contact portion of the conductor 21 and the crimping terminal 10 are also in the shape and the like. It becomes possible to cover with the coating agent C1 along.
In addition, toluene, xylene, etc. can be used as a solvent.

The conductor 21 and the crimp terminal 10 can be made of the same type of metal (for example, both are aluminum, copper, copper alloy, etc.) or different metals (for example, a combination of aluminum, copper, copper alloy, etc.).
The film F exhibits a waterproof effect. As a result, even if it is the same kind of metal or different kinds of metals, the anticorrosion effect or the rust prevention effect can be exhibited.

(Crimping terminal)
The crimp terminal 10 is configured, for example, as a terminal fitting in which an alloy (base material) is plated (Sn or the like).
As shown in FIG. 2A, a metal plate 50 in which an alloy (base material) is plated (Sn or the like) is cut into a terminal shape.
A crimp terminal 10 illustrated in FIG. 2B includes a terminal portion 11 connected to a connector or the like, a joint portion 12 that is caulked with a conductor 21 of an electric wire 20 and electrically joined, and an electric wire covering material 22 of the electric wire 20. And a fixing part 13 for fixing by crimping.

(Manufacturing method of electric wire with terminal)
With reference to FIGS. 2-5, the manufacturing method of the electric wire E1 with a terminal which concerns on this Embodiment is demonstrated.
First, a metal plate (base material) 50 made of copper and a copper alloy as shown in FIG. 2 (a), or a SUS or aluminum alloy is cut into a terminal shape as shown in FIG. 2 (b). The cut member (terminal fitting) 10 is cut out by punching or the like.

  Next, as shown in FIG. 3, the crimped terminal 10 is formed by bending a member cut into a terminal shape. Then, the electric wire 20 with the conductor 21 exposed by removing the electric wire covering material 22 on the distal end side is attached to the crimp terminal 10.

  Next, as shown in FIG. 4, the conductor 21 of the electric wire 20 is crimped by the joint portion 12 of the crimp terminal 10, and the electric wire covering material 22 of the electric wire 20 is crimped by the fixing portion 13 of the crimp terminal 10. And the electric wire 20 are crimped.

  Then, the coating agent C <b> 1 made of alkyd resin is applied to the region A <b> 1 including the connection portion between the conductor 21 and the crimp terminal 10 by using a sprayer (spray apparatus) 200 or dropping, brushing, or the like.

  Next, the applied coating agent C1 is dried. At this time, drying may be promoted by irradiating the coating agent C with heat using a laser beam or a halogen heater. Thereby, the manufacturing efficiency of the electric wire with a terminal can be improved.

  The coating agent C1 composed of the applied alkyd resin reacts with oxygen in the air and is cured. Therefore, the step of irradiating light or heat for curing can be omitted as in the case of the photo-curing resin or thermosetting resin, and the production efficiency of the electric wire with terminal can be further improved.

In this way, the coating agent C1 composed of the alkyd resin is firmly attached to the metal surface of the conductor 21 and the crimp terminal 10 to form the film F, and the electric wire E1 with a terminal as shown in FIG. 1 is created. The
Since the film F exhibits a waterproof effect or an anticorrosion effect with a relatively thin film thickness, it does not hinder the fitting state to the connector housing.
In addition, when the coating liquid C exhibits a predetermined color due to the addition of the colorant, it is easy to check the coating state in the work process by adjusting the concentration.
Furthermore, since the coating F has a primer effect under the coating, it is possible to provide another coating on the coating F or to apply the coating.
Moreover, since the film F has heat resistance, it can be used in a high-temperature environment such as an engine room of a vehicle.
Moreover, the wire harness which improved waterproofness and anticorrosion property can be provided by producing the wire harness by bundling the electric wire E with a terminal in multiple pieces.

(Experimental results)
The present inventor conducted the following experiment in order to confirm the characteristics and effects of the film F as described above.
First, the coating agent C comprised with an alkyd resin is prepared.
Specifically, “Arachid 7104” or “Arachid 7108” manufactured by Arakawa Chemical Industries, Ltd., which is a kind of phenol-modified alkyd resin, was used as coating agent C1 (C10, C11).

A brass terminal plated with tin is crimped onto an aluminum-based alloy, and a coating agent C10 and C11 prepared as described above are applied to a contact portion between a terminal fitting and a wire conductor and dried. It was a piece.
Moreover, the test piece which does not carry out an anticorrosion process was prepared as a comparison object.
And using the said test piece, the salt spray test and DC resistance measurement based on Japanese Industrial Standard (JIS) and Japan Automobile Technical Society standard (JASO) were performed.
Specifically, a salt spray test based on JIS Z 2371 was performed for 72 hours and 96 hours on the above two types of test pieces.
After the salt spray test, the DC resistance measurement of the contact portion between the terminal fitting and the wire was performed for each test piece.
Here, as a result of the DC resistance measurement, an experimental result as shown in FIG. 6 was obtained for the resistance increase after the salt spray test.

That is, the test piece according to the comparison target that was not subjected to corrosion prevention (non-corrosion-proof: indicated by D in FIG. 6) has a large increase in DC resistance in 72 hours of the salt spray test compared to before the salt spray test (0 h). On the other hand, in the test pieces subjected to the anticorrosion with the coating agents C10 and C11, a large increase in DC resistance could not be confirmed even in the test pieces subjected to the salt spray test 72 hours and 96 hours.
Thus, according to application | coating of coating agent C10 and C11, it turned out that a practically sufficient anticorrosion effect is acquired about the electric wire with a terminal.

  The coating agent C10 is Arachid (phenol modified) 7104 manufactured by Arakawa Chemical Industries, Ltd., and the coating agent C11 is Arachid (phenol modified) 7108 manufactured by Arakawa Chemical Industries, Ltd.

(About confirmation of anticorrosion effect)
Two tests described in JASO D 616 as a method for confirming the anticorrosion effect (1 in accordance with JIS Z2371) 96 hours salt water spray test temperature 35 ° C. 5% salt water concentration 2) constant temperature and humidity test 96 hours temperature 80 ° C. Humidity 95%) was continuously performed, and then DC resistance measurement was performed. By crimping the aluminum wire and the copper alloy terminal fitting, a dissimilar metal contact portion that is electrically connected can be formed.

  A mixed solution containing an anticorrosive agent: phenol-modified alkyd resin (here, Arakid 7104 manufactured by Arakawa Chemical Industries, Ltd.) was applied as a post-treatment to the contact portion and its surroundings.

As shown in FIG. 6, the DC resistance of the test piece without the anticorrosive agent showed a very large resistance value in the 96-hour salt spray test. On the other hand, the test piece coated with the anticorrosive agent showed a resistance value equivalent to that before the test even when the salt spray test was performed. Based on this result, it is possible to prevent or delay corrosion by applying the phenol-modified alkyd resin mixed solution. Moreover, even if the constant temperature / humidity test for 96 hours is continuously performed after the spraying of salt water for 96 hours, the anticorrosion effect can be maintained even under high temperature and high humidity by showing a resistance value equivalent to that before the test. I showed that I can do it.
Thus, by applying the phenol-modified alkyd resin mixed solution, it is possible to prevent or delay the corrosion of the contact portion of the different metal and the wire harness.

[Second Embodiment]
The electric wire E2 with a terminal which concerns on the 2nd Embodiment of this invention is demonstrated.
The whole structure of the electric wire E2 with a terminal which concerns on 2nd Embodiment is the same as that of the electric wire E1 with a terminal which concerns on 1st Embodiment.

The difference from the electric wire E1 with a terminal according to the first embodiment is that the anticorrosion agent (coating agent) does not use a volatile organic compound (VOC) and can be used in combination with aqueous and oily properties. It is a point using an alkyd resin excellent in property.
More specifically, a water dispersible alkyd resin is used and water is used as a solvent.
Here, a general alkyd resin has good compatibility with an oily surface and good adhesion, and has high anticorrosion properties. Therefore, it is also used for heavy anticorrosion of bridges and the like.

  However, a general alkyd resin has a problem of environmental pollution due to a volatile organic compound (VOC) used as a solvent. There is also a problem that a relatively long time is required for curing and drying. For this reason, for example, when used for products such as automobile parts, it is necessary to add VOC countermeasures, drying and curing processes, and the management cost is increased.

  On the other hand, in this Embodiment, the area | region containing the connection part of the crimp terminal (metal terminal) 10, the conductor 21, and the crimp terminal 10 by using the water dispersible alkyd resin which used water for the solvent as the anticorrosive C2. It is applied to A1 (see FIG. 4).

  Since the anticorrosive C2 is temporarily cured by volatilization of water, it is possible to produce an electric wire and a wire harness that prevent corrosion or delays corrosion prevention without imposing a burden on the manufacturing process.

(Curing process of anticorrosive C2 etc.)
When a water-dispersible alkyd resin and an anticorrosive C2 containing water are applied to the crimp terminal (metal terminal) 10 and the conductor 21, water is first volatilized and fixed with a certain hardness. Thereafter, the fixed alkyd resin is gradually dried and cured by oxidative polymerization.
And anti-corrosion agent C2 will exhibit waterproof and anti-corrosion hardening which prevents the penetration | invasion of water, after drying and hardening are complete | finished.

In addition, in the anticorrosive C2, the water-dispersible alkyd resin is dispersed in the solvent water, but the alkyd resin itself is oleophilic, so even if processing oil or the like is adhered, it should be firmly adhered and cured. Is possible.
(About confirmation of anticorrosion effect)
First, a water dispersible alkyd resin is prepared as the anticorrosive C2. Specifically, an aqueous alkyd resin paint “Akira” manufactured by Kusakabe Co., Ltd. was used.

Then, a brass-plated brass terminal was pressure-bonded to an aluminum-based alloy, and 10 to 20 μl of the coating agent C2 was applied to the contact portion between the terminal fitting and the electric wire conductor and sufficiently dried. The drying was performed at a temperature of 23 ° C. for one and a half months.
Moreover, the test piece which has not carried out the anti-corrosion process was prepared as a comparison object.
And using the said test piece, the salt spray test based on Japanese Industrial Standard (JIS) was done, and DC resistance measurement was done after that.
Specifically, a salt spray test based on JIS Z 2371 was conducted for 96 hours on the above two types of test pieces.
Next, after the salt spray test, direct resistance measurement of the contact portion between the terminal fitting and the wire conductor was performed for each test piece.

Here, as a result of the direct current resistance measurement, the resistance increase after the salt spray test was performed in 72 hours of the salt spray test in the test piece according to the comparative object that was not subjected to the corrosion prevention compared to before the salt spray test (0 hour). While the resistance greatly increased, the test piece subjected to anticorrosion with the coating agent C2 could not confirm a large increase in DC resistance even in the test piece subjected to the salt spray test for 96 hours. The resistance value was judged based on whether the resistance of the crimped part exceeded 10 mΩ.
Thus, according to the anticorrosive C2 using the water-dispersible alkyd resin according to the present embodiment, the overall amount of VOC used as a solvent used in other coating agents can be reduced, and the environment and The burden on the process can be reduced.

[Third Embodiment]
A terminal-attached electric wire E3 according to a third embodiment of the present invention will be described.
The overall configuration of the electric wire with terminal E3 according to the third embodiment is the same as that of the electric wire with terminal E1 according to the first embodiment.

The difference from the terminal-equipped electric wire E1 and the like according to the first embodiment is that the anticorrosive C3 used for the electric wire with terminal E3 according to the third embodiment is a main curing agent that ensures anticorrosion performance, and a manufacturing process. And the temporary curing agent is composed of an alkyd resin, and the temporary curing agent is composed of an immediately curable resin or a solvent.
More specifically, the alkyd resin of the anticorrosive C3 may include a phenol-modified alkyd resin, and the rapidly curable resin or solvent may include an ultraviolet curable resin.

Here, the alkyd resin is inexpensive and has excellent anticorrosion performance, and is also used for heavy anticorrosion of bridges and the like. However, the time until curing and drying is relatively long, and even when a drying accelerator or the like is added, it often takes several hours to complete the curing and drying.
In addition, if drying is performed too quickly, there is a problem in that defects such as wrinkles occur on the surface of the product.

  Therefore, when applying alkyd resin to a wire harness, the curing and drying time becomes a bottleneck, and it is assumed that the time required to move to the next process will increase and the occurrence rate of product defects will increase. There is a fear.

On the other hand, according to the present embodiment, a composite of an alkyd resin (main curing agent) that secures anticorrosion performance, a rapidly curable resin that maintains a non-defective product within the manufacturing process, and a solvent (temporary curing agent) By applying it to the crimp terminal (metal terminal) 10 and the conductor 21 as the anticorrosive C3, an electric wire and a wire harness that are inexpensive and can prevent corrosion or delay corrosion prevention without imposing a burden on the manufacturing process are produced. It becomes possible to do.
Examples of the anticorrosive C3 include an anticorrosive prepared by mixing a phenol-modified alkyd resin and an ultraviolet (UV) curable resin.

(Curing process of anticorrosive C3, etc.)
An anticorrosive C3 in which an alkyd resin and a UV curable resin are mixed is applied to the crimp terminal (metal terminal) 10 and the conductor 21, and ultraviolet light (UV) necessary for curing the UV curable resin is irradiated to the application part.
Thereby, although it does not reach to complete curing, temporary curing such as touch drying and surface drying considered to be the minimum necessary in the process occurs.

Although sufficient anticorrosion performance cannot be obtained in the temporarily cured state, the alkyd resin portion gradually undergoes main curing by oxidative polymerization, and when the main curing is completed, a sufficient anticorrosion effect can be obtained.
The main curing process may be completed by the time of product shipment or delivery.
Further, by changing the mixing ratio of the alkyd resin and the UV curable resin, it is possible to control the hardness at the time of temporary curing, curing, drying speed, anticorrosion performance after the main curing, and the like.
Further, instead of the alkyd resin, for example, acrylic, epoxy, phenol, urethane, silicon, fluorine resin, etc. may be used.
Further, as the curing and drying mechanism of the quick-curing resin, any of volatilization, fusion, oxidation polymerization, polymerization, thermal polymerization, melting and cooling, ultraviolet ray / electron beam curing, etc. may be used.

  As mentioned above, although the electric wire with a terminal of the present invention was explained based on the illustrated embodiment, the present invention is not limited to this, and the configuration of each part is replaced with an arbitrary configuration having the same function. Can do.

10 ... Crimp terminal (terminal fitting)
DESCRIPTION OF SYMBOLS 11 ... Terminal part 12 ... Joining part 13 ... Fixed part 20 ... Electric wire 21 ... Conductor 22 ... Electric wire coating material 50 ... Metal plate 200 ... Sprayer (spray apparatus)
A1 ... region C1, C2, C3 ... coating agent E1, E2, E3 ... electric wire with terminal F ... coating

Claims (14)

An electric wire having a conductor and an electric wire covering material covering the conductor;
A crimp terminal connected to the conductor of the wire;
A film formed of a coating applied to a region including a contact portion between the conductor and the crimp terminal;
Consisting of
The said coating agent is comprised with the alkyd resin, The electric wire with a terminal characterized by the above-mentioned.   The said conductor and the said crimp terminal are comprised with the same kind of metal or a different kind of metal, The electric wire with a terminal of Claim 1 characterized by the above-mentioned.   3. The terminal-attached terminal according to claim 1, wherein the alkyd resin includes any one of a short oil alkyd resin, a medium oil alkyd resin, a long oil alkyd resin, and a modified alkyd resin combined with a modifier. Electrical wire.   The electric wire with a terminal according to any one of claims 1 to 3, wherein the modifier includes at least one of rosin, phenol resin, epoxy resin, acrylic resin, vinyl monomer, and silicone resin. .   5. The coating agent according to claim 1, wherein the coating agent contains at least one of an antioxidant, an anticorrosive, a rust preventive, a drying accelerator, and a filler as an additive. Electric wire with terminal.   The said coating agent contains a coloring agent as an additive, The electric wire with a terminal in any one of Claims 1-5 characterized by the above-mentioned.   The electric wire with a terminal according to any one of claims 1 to 6, wherein the coating agent is diluted with a solvent.   The said alkyd resin is comprised with water-dispersible alkyd resin, and the said solvent is water, The electric wire with a terminal of Claim 7 characterized by the above-mentioned. The coating agent has a main curing agent that ensures anticorrosion performance, and a temporary curing agent that maintains quality in the manufacturing process,
The present curing agent is composed of the alkyd resin,
The electric wire with a terminal according to any one of claims 1 to 8, wherein the temporary curing agent is composed of an immediately curable resin or a solvent. The alkyd resin includes a phenol-modified alkyd resin,
The electric wire with a terminal according to claim 9, wherein the immediately curable resin or solvent contains an ultraviolet curable resin.   11. The terminal-attached electric wire according to claim 1, wherein the contact-side surface of the crimp terminal to which the coating agent is applied includes an end surface of the conductor. Connecting a crimp terminal to the conductor of the wire;
Applying a coating agent composed of an alkyd resin to a region including a connection portion between the conductor and the crimp terminal;
Curing the coating agent to form a film;
The manufacturing method of the electric wire with a terminal characterized by having.   The method for producing a terminal-attached electric wire according to claim 12, further comprising a step of irradiating the coating agent with a laser beam to dry the coating agent.   The wire harness using the electric wire with a terminal given in any 1 paragraph of Claims 1-11.

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