KR102156980B1 - Method for restoring chrome molding of vehicle - Google Patents

Abstract

The present invention relates to a method for restoring the chrome molding of a vehicle in which a whitening phenomenon occurs in a chrome molding decorated to give a sense of luxury to the exterior of a vehicle, and such a whitening phenomenon can be quickly and easily removed by a non-expert. A masking step of shielding the periphery of the chrome molding surface of the chromium molding, a first degreasing step of wiping the surface of the chromium molding using a degreasing agent to remove contaminants from the surface of the chrome molding, and a cleaning agent on the degreasing surface of the chrome molding A first coating step of applying, a soaking step of soaking whitening of the surface of the chrome molding through the applied cleaning agent, a second coating step of reapplying the cleaning agent on the surface of the chrome molding, and the cleaning agent And a polishing step of polishing the re-coated surface of the chrome molding with a nonwoven abrasive material, and a second degreasing step of wiping the surface of the chrome molding by reusing the degreasing agent on the polished surface of the chrome molding.

Description

How to restore the chrome molding of a vehicle{METHOD FOR RESTORING CHROME MOLDING OF VEHICLE}

The present invention relates to a method for restoring the chrome molding of a vehicle, and more particularly, when whitening occurs in the chrome moldings that decorate the rims of the front and rear and left and right sides of the vehicle, the front and rear lamps, the whitening phenomenon can be quickly prevented by a non-specialist. It relates to a method for restoring the chrome molding of a vehicle that can be easily removed and restored.

According to the Vehicle Management Information System (VMIS) operated by the Ministry of Land, Infrastructure and Transport, as of October 2018, the number of registered automobiles in Korea exceeded 23 million, which is almost one per two people, and that is, automobiles affect our lives. It has become an indispensable daily necessity.

Cars can be used for at least 20 years if they are well maintained, but each part needs to be repaired or replaced due to aging due to use or scratches and contamination such as scratches caused by foreign substances.

In particular, in the case of recent high-end automobiles, as shown in FIGS. 1 to 3, chrome molding (CM) is often used outside to add a sense of luxury to the design of the vehicle V. It is mainly decorated on the front and rear and left and right sides of the vehicle V, the rims of the front and rear lamps, etc., and adds a sense of luxury to the exterior by giving a silver-white gloss.

However, in the case of the chrome molding (CM) of the vehicle (V), a whitening phenomenon occurs as shown in FIGS. 2 and 3 even when a new vehicle is shipped as well as the old vehicle V. Often, the whitening phenomenon of chrome molding (CM) is simply called whitening because it is like scale, scale, or white flowers.

The whitening phenomenon that occurs in metal refers to the damage to the surface of a metal product that requires gloss and changes hazy, but it occurs more often in high-gloss products. The reason is that the anodizing method is used for high gloss, because the anodizing method has the advantage of being excellent in gloss, uniformity, and almost no weight increase as an aluminum oxide film is electrically coated on the metal surface. Despite these advantages, the fatal problem is the bleaching phenomenon.

The whitening phenomenon that occurs in the chrome molding (CM) of the vehicle (V) is mainly when exposed to sunlight for a long time to receive heat, when chemicals (detergent, etc.) are stained before the heat cools down after driving, or when a strong acid detergent is used. It appears, and sometimes occurs due to the presence of calcium chloride sprayed on the road surface in winter or salt (sodium chloride) on the beach.

Since it is difficult to remove the whitening of the chrome molding CM described above, most drivers are driving the vehicle V in a state of the whitening. In particular, in the case of chrome molding (CM), since it is very expensive, it is difficult to easily replace it, and when it is left to a vehicle maintenance center to remove whitening, it costs about half the replacement cost. This is because there is a special agent for restoring the existing chrome molding, but the expert has to perform the whitening removal work with the electric wheel for a long time.

That is, there is a problem that whitening is not easily removed even if a commercially available exclusively used drug for whitening removal is mainly for professionals, and even if a professional uses a commercially available exclusively used drug for whitening removal. In particular, the degree of whitening of the chrome molding (CM) varies from the beginning to the end, but if the whitening is at the end of the process so as to completely cover the surface of the chrome molding (CM), even if the expert takes several days to remove the whitening, restoration is not possible. There is a problem that it is not easy.

It is an object of the present invention conceived to solve the above problems is a vehicle capable of recovering by quickly and easily removing the whitening phenomenon even by a non-specialist when a whitening phenomenon occurs in the chrome molding decorated to give a sense of luxury to the exterior of the vehicle. It is to provide a method of restoring the chrome molding.

In particular, while presenting a new detergent for removing whitening, it can be diluted and used in a small amount according to the degree of whitening in the chrome molding of a vehicle.When using the presented detergent, not only experts but also non-professionals can easily use chrome molding through a specific step-by-step process. It is to provide a method of restoring the chrome molding of a vehicle that can be restored.

In order to achieve the above object, the method for restoring chrome molding of a vehicle according to the present invention includes a masking step of shielding the periphery of the chrome molding surface of the vehicle to be restored, and a degreasing agent to remove contaminants on the surface of the chrome molding. A first degreasing step of wiping the surface of the chrome molding using a first degreasing step, a first applying step of applying a cleaning agent to the degreased surface of the chromium molding, and a so-called whitening of the surface of the chrome molding through the applied cleaning agent. Steps, a second coating step of reapplying the cleaning agent on the surface of the chrome molding, a polishing step of polishing the surface of the chrome molding on which the cleaning agent has been reapplied with a non-woven abrasive, and the polished surface of the chrome molding It comprises a second degreasing step of reusing the degreasing agent to wipe the surface of the chrome molding.

In addition, the degreasing agent is characterized in that isopropyl alcohol or ethyl alcohol.

In addition, the cleaning agent is characterized in that it is a cleaning solution in which sodium fluoride is dissolved as a solvent using ethylenediaminetetraacetic acid (EDTA) and dioctyl phthalate (DOP) as solutes.

In addition, the cleaning agent is characterized in that the cleaning solution is diluted by mixing 25% by weight to 50% by weight of water.

In addition, each of the first coating step and the second coating step is characterized in that the cleaning agent is wetted in a sponge pad with 0.05 mL to 0.2 mL and then applied to the surface of the chrome molding.

In addition, the soaking step is characterized in that the whitening of the surface of the chrome molding is soaked for between 45 seconds and 75 seconds by the cleaning agent.

In addition, the polishing step is characterized in that the surface of the chrome molding is polished with a nonwoven abrasive having a particle size of 600 to 1500.

In addition, in the polishing step, the degree of whitening of the surface of the chromium molding is divided from the beginning to the end, and the particle size of the nonwoven abrasive is selected from 1500 to 600 and polished.

In the method for restoring chrome molding of a vehicle according to the present invention, when whitening occurs in the chrome molding that is decorated to give a sense of luxury to the exterior of the vehicle, the whitening phenomenon can be quickly and easily removed and restored by a non-specialist.

In particular, while presenting a new cleaning agent for whitening removal, it can be diluted in a small amount according to the degree of whitening that occurs in the chrome molding of the vehicle, and the particle size of the nonwoven abrasive is selected according to the degree of whitening so that the chrome molding is not damaged when removing whitening. By polishing the surface of the chrome molding, not only experts but also non-professionals can easily restore the chrome molding.

1 is a side view showing a vehicle decorated with chrome molding,
FIG. 2 is an actual photograph of a state before restoration in which whitening occurred in the chrome molding of part A in the embodiment of FIG. 1,
FIG. 3 is an actual photograph of a state before restoration in which whitening occurred in the chrome molding of part B of the embodiment of FIG. 1,
4 is a flow chart showing an embodiment of a method for restoring chrome molding of a vehicle according to the present invention,
5 is a view showing an actual state after restoration by the method for restoring the chrome molding of the vehicle according to the present invention from the embodiment of FIG. 2;
6 is a view showing a state after restoration by the method for restoring the chrome molding of the vehicle according to the present invention from the embodiment of FIG. 3.

Hereinafter, a preferred embodiment of a method for restoring a chrome molding of a vehicle according to the present invention will be described in detail with reference to the accompanying drawings.

The method for restoring the chrome molding of a vehicle according to the present invention includes a masking step (S100), a first degreasing step (S200), a first coating step (S300), a soaking step (S400), and a second coating as shown in FIG. It comprises a step (S500), a polishing step (S600) and a second degreasing step (S700).

In the masking step S100, the periphery of the surface of the chrome molding CM of the vehicle V to be restored is shielded. It is mainly to attach a masking tape, and prevents the case that the cleaning agent used in the first coating step 300 and the second coating step (S500) to be described later is erroneously buried, and in particular, during the polishing operation in the polishing step (S600) to be described later. This is to prevent damage to the car paint or glass near the chrome molding (CM), which should not be accidentally polished.

In the first degreasing step (S200), the surface of the chrome molding CM is wiped using a degreasing agent to remove contaminants on the surface of the chrome molding CM. That is, it refers to contaminants other than whitening generated on the surface of the chrome molding (CM), such as dust or oil, and is treated cleanly through a degreasing agent. Mainly, you can wipe clean with a small amount of degreasing agent on gauze, cloth, or car wash towel.

In the case of the degreasing agent, isopropyl alcohol (IPA) or ethyl alcohol (ethanol) is used. Isopropyl alcohol is a colorless, volatile liquid with high flammability. It is well soluble in water, hydrocarbon oil, and oxygen-containing organic solvents. It easily turns into acetone by oxidation or dehydrogenation, and its chemical properties are similar to ethyl alcohol. Ethyl alcohol is called ethanol. It is a transparent, colorless liquid that has a characteristic odor and irritating taste, has strong sterilization power, acts on microorganisms in a short time, and has low toxicity and detergency. Isopropyl alcohol has higher degreasing ability than ethanol, and the degreasing ability weakens as it is diluted with water, but it is mainly diluted with water to about 70-80%.

In the first coating step (S300), a cleaning agent is applied to the degreasing surface of the chrome molding (CM). That is, only whitening exists on the surface of the degreased chrome molding (CM), and a cleaning agent is applied to remove the whitening. The cleaning agent is a cleaning solution in which sodium fluoride is dissolved as a solvent using ethylenediaminetetraacetic acid (EDTA) and dioctyl phthalate (DOP) as solutes. Here, the cleaning solution is a compound in which a liquid and a liquid are mixed, which means that the amount of sodium fluoride as a solvent is greater than that of ethylenediaminetetraacetic acid and dioctyl phthalate. Of course, the detergent may further contain other additives such as surfactants, bleaching agents, or coloring agents.

Sodium fluoride, the solvent of the detergent, is peeled off by activating the whitening formed on the surface of the chrome molding (CM) as a surfactant, that is, a detergent. Sodium fluoride is a colorless, equiaxed crystal, soluble in water, and its aqueous solution is hydrolyzed to show alkalinity, and since it invades glass or silicon compounds, it should not be stained with surrounding glass other than the surface of the chrome molding (CM) or the paint of the vehicle (V). Needs attention. The whitening of the surface of the chrome molding (CM) is activated with ions through the properties of sodium fluoride, and ethylenediaminetetraacetic acid, described later, reacts with the activated whitening to form a complex.

That is, in the case of ethylenediaminetetraacetic acid as a key element of detergents, it is an element for chelating, that is, complexing, with a sequestering agent for metal ions. It forms water-soluble and stable complex salts with many metals such as alkaline earth, rare earth, and transition metal. In the case of the present invention, whitening formed on the surface of the chrome molding (CM) reacts with ethylenediaminetetraacetic acid through the surface activity of the sodium fluoride to form a complex, thereby making it very easy to remove whitening.

Dioctyl phthalate, as a plasticizer or lubricant, has low volatility and is rich in water resistance, heat resistance, and light resistance. That is, when preparing and using a cleaning solution, the miscibility and plasticity of solutes and other additives to the solvent are improved.

At this time, the cleaning agent may be used as a 100% cleaning solution, but may be diluted by mixing 25% by weight to 50% by weight of water in the cleaning solution. Depending on the amount of water diluted, the maximum amount used and the ability to remove whitening vary, which will be described later, but diluted according to the degree of whitening of the surface of the chrome molding (CM).

When applying the above-described cleaning agent, 0.05 mL to 0.2 mL of a sponge pad is wetted so that the cleaning agent does not get on hands, and then applied to the surface of the chrome molding (CM). That is, it is only necessary to apply a small amount of one to two or three drops on the sponge pad, and the amount of application may be determined according to the degree of whitening of the chrome molding (CM) and the degree of dilution of the cleaning agent.

In the soaking step (S400), whitening of the surface of the chrome molding (CM) is soaked through the applied cleaning agent. That is, as soon as the cleaning agent is applied to the surface of the chrome molding (CM) through the first application step (S300), the cleaning agent is not immediately polished, but rather gives time for the chemical elements constituting the cleaning agent to react with whitening. Specifically, in the soaking step (S400), whitening of the surface of the chrome molding (CM) is called between 45 seconds and 75 seconds by the cleaning agent according to the chemical properties of the cleaning agent described above. If the soaking time is too short, a sufficient chemical reaction has not occurred, and if the soaking time is too long, chemicals will harden again after whitening and chemical reactions.

In the second coating step (S500), the cleaning agent is re-coated on the surface of the chrome molding (CM). This second coating step (S500) is performed to perform the polishing step (S600) to be described later, and the whitening of the surface of the chrome molding (CM) through the first coating step (S300) is sufficiently soaked with a cleaning agent. Through the second application step (S500), the cleaning agent is applied once more before the polishing operation.

In the polishing step (S600), the surface of the chrome molding (CM) on which the cleaning agent is re-applied is polished with a non-woven abrasive material. The nonwoven abrasive is also called a scrubber abrasive, and the roughness of the surface to be polished is determined according to the particle size. In the case of chromium molding (CM), only whitening should be removed, but since it is polished to the surface of chromium molding (CM) and no scratches occur, the surface of the chromium molding (CM) is polished with a nonwoven abrasive material having a particle size of 600 to 1500. In the case of the present invention, a wheel-type non-woven abrasive material mounted on an electric wheel is also included, but in the case of a non-expert, whitening can be easily removed even if a hand paper-type non-woven fabric abrasive is used.

In this case, in the polishing step (S600), the degree of whitening of the surface of the chromium molding (CM) is divided from the beginning to the end, and the particle size of the nonwoven abrasive may be selected from 1500 to 600 to be polished. That is, when the degree of whitening is early, it is a stage in which snowflakes begin to bloom on the surface of the chrome molding (CM), and the whitening becomes darker as it gradually covers the surface of the chrome molding (CM) and becomes a terminal state when completely covered.

Specifically, when the degree of whitening on the surface of the chrome molding (CM) is in the initial state, dilute water to 50% by weight in the cleaning solution of the cleaning agent, apply only one drop on the sponge pad, soak for 45 seconds, and then apply the cleaning agent. Whitening can be easily removed by re-coating and polishing with a non-woven abrasive having a particle size of 1500. In addition, if the degree of whitening on the surface of the chrome molding (CM) is in the terminal state, apply two or three drops of the cleaning agent to 100% of the cleaning solution on a sponge pad, soak it for 75 seconds, and then reapply the cleaning agent to make particle size. Whitening is removed only by grinding with 600 non-woven abrasives. However, according to the degree of removal of whitening, it is necessary to increase the particle size of the non-woven abrasive material and smoothly polish it to protect the surface of the chrome molding (CM).

In the second degreasing step (S700), the degreasing agent is reused in the polished chrome molding CM to wipe the surface of the chrome molding. That is, the surface of the chrome molding (CM) from which whitening is removed through the polishing step (S600) is finally wiped with a degreasing agent, and as shown in FIGS. 5 and 6, the restored state of the final chrome molding (CM) can be confirmed. . However, if whitening is not completely removed after checking the surface condition of the chrome molding (CM) after the second degreasing step (S700), the first coating step (S300) to the polishing step (S600) may be repeated. have.

On the other hand, when whitening is removed and restored on the surface of the chrome molding CM of the final vehicle V, it is possible to add a sense of quality to the surface of the chrome molding CM through gloss and coating as necessary.

As described above, in the method for restoring chrome molding of a vehicle according to the present invention, when whitening occurs in the chrome molding (CM) that decorates the exterior of the vehicle V to give a sense of quality, such whitening phenomenon can be quickly and easily removed by non-experts. There is an effect that can be restored.

In particular, while presenting a new cleaning agent for whitening removal, it can be diluted and used in a small amount depending on the degree of whitening in the chrome molding (CM) of the vehicle (V), and the degree of whitening so that the chrome molding (CM) is not damaged when removing whitening. According to the selection of the particle size of the nonwoven fabric polishing agent and polishing the surface of the chrome molding (CM), not only experts but also non-professionals can easily restore the chrome molding (CM).

Embodiments of the present invention described above and shown in the drawings should not be construed as limiting the technical idea of the present invention. The scope of protection of the present invention is limited only by the matters described in the claims, and those of ordinary skill in the technical field of the present invention can improve and change the technical idea of the present invention in various forms. Therefore, such improvements and changes will fall within the scope of the present invention as long as it is apparent to those of ordinary skill in the art.

V: vehicle
CM: Chrome molding
S100: Masking step
S200: first degreasing step
S300: first application step
S400: soaking stage
S500: 2nd application step
S600: polishing step
S700: second degreasing step

Claims (8)

A masking step of shielding the periphery of the chrome molding surface of the vehicle to be restored,
A first degreasing step of wiping the surface of the chrome molding using a degreasing agent to remove contaminants from the surface of the chrome molding,
A first coating step of applying a cleaning agent to the degreased surface of the chrome molding,
A soaking step of soaking whitening of the surface of the chrome molding through the applied cleaning agent,
A second coating step of re-coating the cleaning agent on the surface of the chrome molding,
A polishing step of polishing the surface of the chrome molding on which the cleaning agent is re-applied with a nonwoven abrasive material,
And a second degreasing step of wiping the surface of the chrome molding by reusing the degreasing agent on the polished surface of the chrome molding,
The cleaning agent,
A method for restoring chromium molding of a vehicle, comprising a cleaning solution obtained by dissolving sodium fluoride as a solvent using ethylenediaminetetraacetic acid (EDTA) and dioctyl phthalate (DOP) as a solute.
The method of claim 1,
The above degreasing agent,
A method for restoring chrome molding of a vehicle, characterized in that it is isopropyl alcohol or ethyl alcohol.
delete The method of claim 1,
The cleaning agent,
A method for restoring chrome molding for a vehicle, characterized in that the washing solution is diluted by mixing water in an amount of 25% to 50% by weight.
The method of claim 1 or 4,
Each of the first and second application steps,
A method for restoring chrome molding of a vehicle, wherein the cleaning agent is wetted in a sponge pad of 0.05 mL to 0.2 mL and then applied to the surface of the chrome molding.
The method of claim 5,
The soaking step,
The method for restoring chrome molding of a vehicle, characterized in that the whitening of the surface of the chrome molding is called between 45 seconds and 75 seconds by the cleaning agent.
The method of claim 1 or 4,
The polishing step,
A method for restoring chromium molding of a vehicle, comprising polishing the surface of the chromium molding with a nonwoven abrasive having a particle size of 600 to 1500.
The method of claim 7,
The polishing step,
A method for restoring chromium molding for a vehicle, wherein the degree of whitening of the surface of the chromium molding is divided from the beginning to the end, and a particle size of the nonwoven abrasive is selected from 1500 to 600.

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