CN105818304A - Method for treating surface layer of die set of electric vehicle - Google Patents

Abstract

The invention provides a method for treating a surface layer of a die set of an electric vehicle, and relates to the technical field of production of electric vehicles. The method comprises the following process steps: waxing, gel coating, 01 fiber cloth coating, putty coating, 04 fiber cloth coating, and 300 # fiber mat coating. Through the method, treatment of the surface layer of the die set of the electric vehicle in the prior art is improved, the problems that treatment of surface layers of dies of an electric vehicle in the prior art is imperfect and relatively rough, so that the surface layer of a vehicle body of the produced electric vehicle is rough and is not smooth enough, after being used repeatedly, the dies cannot be used again, production costs of an enterprise are increased invisibly, and resources are wasted are solved, after the surface layer of the die set of the electric vehicle is treated, the die set of the electric vehicle not only becomes smooth, but also is wear-resistant and corrosion-resistant, and is long in service life, the product quality of the electric vehicle is improved, and the production costs of the enterprise are reduced invisibly.

Description

A method for surface treatment of a complete set of molds for electric vehicles

Technical field:

The invention relates to the technical field of electric vehicle production, in particular to a surface treatment method for a complete set of molds for electric vehicles.

Background technique:

During the production of electric vehicles, the quality of electric vehicle molds and the length of service life directly affect the quality of the finished products of electric vehicles and the cost of production. The surface treatment of electric vehicle molds in the prior art is not perfect, which is relatively Roughness, resulting in the rough surface of the produced electric vehicle body is not smooth enough, and the mold cannot be used again after multiple uses, which virtually increases the production cost of the enterprise and causes a waste of resources.

Invention content:

The invention provides a surface treatment method for a complete set of electric vehicle molds, through which the surface treatment of the complete set of electric vehicle molds in the prior art is improved, and the complete set of electric vehicle molds after surface treatment not only becomes smoother, but also wear-resistant, Corrosion resistance, longer service life, improve the product quality of electric vehicles, virtually reduce the production cost of enterprises.

Technical problem to be solved by the present invention adopts following technical scheme to realize:

A method for treating the surface of a mold for an electric vehicle, characterized in the following steps:

1) Waxing:

1.1) Preparation: place the mold flat on the ground or on the operating table, do not let the mold shake wantonly, clean the working surface of the mold with a pure cotton towel, and ensure that it is smooth and free of debris and damage;

1.2) Waxing: Apply 8# yellow wax through fine gauze cloth, and then rub it evenly on the working surface of the mold. After the entire surface is coated, wax fully after half an hour;

1.3) Wax removal: Use a towel to completely remove the yellow wax on the working surface of the mold to make it smooth and moisture-free;

2) Gel coat:

2.1) Fully stir the gel coat in the original barrel before use, but the speed should be slow to avoid mixing air. Take the gel coat through a clean water scoop, add an appropriate amount of color paste and curing agent in proportion, and stir evenly to ensure uniform color and stability;

2.2) Use a brush to evenly cover a layer of gel coat coating on the working surface of the mold. After curing, when the gel coat layer sticks to your hands without sticking to your hands, proceed to the next step. For Difficult parts of the mold to apply gel coat, such as deep grooves, the gel coat in this area takes a long time to solidify, and a small amount of ventilation can be used for curing;

The thickness of the coating is 1mm, the curing time is 0.5h, and the indoor temperature is 25°C when applying the gel coat;

The gel coat is made by mixing and boiling 15 parts of rubber, 10 parts of rosin, 10 parts of modified cornstarch, 10 parts of vegetable oil, 15 parts of deionized water and 5 parts of antioxidant;

The color paste is prepared by mixing 10 parts of cement, 15 parts of mixed pigment, 10 parts of attapulgite clay, 15 parts of tung oil, 8 parts of pine oil and 3 parts of surfactant;

The curing agent is a national standard curing agent;

The ratio of gel coat: color paste: curing agent is 100:6:4;

3) Cover with 01 fiber cloth:

3.1) After the gel coat is cured, brush the resin, also take 123# resin with a water scoop, then add an appropriate amount of curing agent and mix well;

3.2) Apply a layer of resin evenly on the cured gel coat with a brush to avoid excessive accumulation of resin. Quickly paste the 01 fiber cloth that has been cut in advance on the resin that has just been painted and use the resin to make it completely wet. Permeable, adsorbed on the inner surface of the mold, some protrusions and depressions, according to the need to cut the cloth into a suitable size and shape;

3.3) Check carefully, the missing parts should be subsidized, and the transitional parts should be reinforced with two layers of fiber cloth;

3.4) After the 01 fiber cloth is cured, check whether there are any bubbles, and level it with a spatula;

The smear ratio of described resin and curing agent is 100:4;

The curing time is 0.5h. When covering with 01 fiber cloth, the indoor temperature is 25°C.

4) Apply putty: follow the above process, evenly apply one layer of putty coating on the cured 01 fiber cloth, the putty is made of resin, curing agent and talcum powder, and the ratio of resin: curing agent: talcum powder is 1:0.08:1.5, the coating thickness is 2mm, and the indoor temperature is 25°C;

5) Cover with 04 fiber cloth: After applying the putty, quickly cover a layer of 04 fiber cloth on it, and make the fiber cloth completely wet by brushing resin and curing agent, and absorb it on the mold. The resin and curing agent are evenly applied , to avoid excessive accumulation of resin, the ratio between resin and curing agent is 100:4, when covering with 04 fiber cloth, the indoor temperature is 25°C;

6) Cover with 300# fiber felt:

6.1) Immediately after laying 04# fiber cloth, spread 300# fiber felt on it, and brush the resin and curing agent coating again to make the fiber cloth completely wet, and use the brush to smooth the surface with proper force so that it does not Until bubbles and burrs appear, the thickness of the coating is 4mm, the ratio between resin and curing agent is 100:4, and the indoor temperature is 25°C when covering 300# fiber felt;

6.2) Just wait for curing, and the curing time is 0.5h;

7) Clamping:

7.1) After the whole set of mold is completely painted and cured, repair the edges neatly with a knife;

7.2) Splice the mold according to the joint position of the mold, and fasten the connection with bolts;

7.3) After the mold is closed, cover the joints of the mold with a cloth, brush it once with putty, and then cover it with two layers of 04# fiber cloth with a width of 150mm, and use a brush dipped in resin to make it wet , absorb and cover with the mold, waiting for curing;

7.4) After the 04## fiber cloth is cured, cover it with two layers of 300# fiber mat again, dip the resin with a brush to make it wet and absorb it with the mold, and wait for the coating to cure;

The putty is made of resin, curing agent and talcum powder, the ratio of resin: curing agent: talcum powder is 1:0.08:1.5, the coating thickness is 2mm, the indoor temperature is 25°C, the curing time is 4-6h, and the mold is closed The part should be covered with two layers of 300# fiber felt for reinforcement;

8) Demolding:

8.1) After the coating of the above mold is completely dry and solidified, disassemble the connecting bolts, and use a rubber hammer to hit the back and edge of the mold with force to help it fall off;

8.2) After all the molds are disassembled, carry out local repairs. If the mold is not used for a long time, it is not necessary to remove the film, and the spare product is supported in the mold to prevent the mold from deforming.

The beneficial effect of the present invention is: provide a kind of surface layer treatment method of electric vehicle complete set mold, improve the surface layer treatment of electric vehicle complete set mold by this method, the electric vehicle complete set mold after surface layer treatment not only becomes smoother, Moreover, it is wear-resistant, corrosion-resistant, and has a longer service life, which improves the product quality of the electric vehicle and virtually reduces the production cost of the enterprise.

detailed description:

In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

A method for treating the surface of a mold for an electric vehicle, comprising the following steps:

1) Waxing:

1.1) Preparation: place the mold flat on the ground or on the operating table, do not let the mold shake wantonly, clean the working surface of the mold with a pure cotton towel, and ensure that it is smooth and free of debris and damage;

1.2) Waxing: Apply 8# yellow wax through fine gauze cloth, and then rub it evenly on the working surface of the mold. After the entire surface is coated, wax fully after half an hour;

1.3) Wax removal: Use a towel to completely remove the yellow wax on the working surface of the mold to make it smooth and moisture-free;

2) Gel coat:

2.1) Fully stir the gel coat in the original barrel before use, but the speed should be slow to avoid mixing air. Take the gel coat through a clean water scoop, add an appropriate amount of color paste and curing agent in proportion, and stir evenly to ensure uniform color and stability;

2.2) Use a brush to evenly cover a layer of gel coat coating on the working surface of the mold. After curing, when the gel coat layer sticks to your hands without sticking to your hands, proceed to the next step. For Difficult parts of the mold to apply gel coat, such as deep grooves, the gel coat in this area takes a long time to solidify, and a small amount of ventilation can be used for curing;

The curing agent is a national standard curing agent;

The thickness of the coating is 1mm, the curing time is 0.5h, and the indoor temperature is 25°C when applying the gel coat;

The gel coat is made by mixing and boiling 15 parts of rubber, 10 parts of rosin, 10 parts of modified cornstarch, 10 parts of vegetable oil, 15 parts of deionized water and 5 parts of antioxidant;

The color paste is prepared by mixing 10 parts of cement, 15 parts of mixed pigment, 10 parts of attapulgite clay, 15 parts of tung oil, 8 parts of pine oil and 3 parts of surfactant;

The curing agent is a national standard curing agent;

The ratio of gel coat: color paste: curing agent is 100:6:4;

3) Cover with 01 fiber cloth:

3.1) After the gel coat is cured, brush the resin, also take 123# resin with a water scoop, then add an appropriate amount of curing agent and mix well;

3.2) Apply a layer of resin evenly on the cured gel coat with a brush to avoid excessive accumulation of resin. Quickly paste the 01 fiber cloth that has been cut in advance on the resin that has just been painted and use the resin to make it completely wet. Permeable, adsorbed on the inner surface of the mold, some protrusions and depressions, according to the need to cut the cloth into a suitable size and shape;

3.3) Check carefully, the missing parts should be subsidized, and the transitional parts should be reinforced with two layers of fiber cloth;

3.4) After the 01 fiber cloth is cured, check whether there are any bubbles, and level it with a spatula;

The smear ratio of described resin and curing agent is 100:4;

The curing time is 0.5h. When covering with 01 fiber cloth, the indoor temperature is 25°C.

6) Apply putty: After the above process, evenly apply a layer of putty coating on the cured 01 fiber cloth, the putty is made of resin, curing agent, and talcum powder, and the ratio of resin: curing agent: talcum powder is 1:0.08:1.5, the coating thickness is 2mm, and the indoor temperature is 25°C;

7) Covering with 04 fiber cloth: After applying the putty, quickly cover a layer of 04 fiber cloth on it, and make the fiber cloth completely wet by brushing resin and curing agent, and absorb it on the mold. The resin and curing agent are evenly applied , to avoid excessive accumulation of resin, the ratio between resin and curing agent is 100:4, when covering with 04 fiber cloth, the indoor temperature is 25°C;

6) Cover with 300# fiber felt:

6.1) Immediately after laying 04# fiber cloth, spread 300# fiber felt on it, and brush the resin and curing agent coating again to make the fiber cloth completely wet, and use the brush to smooth the surface with proper force so that it does not Until bubbles and burrs appear, the thickness of the coating is 4mm, the ratio between resin and curing agent is 100:4, and the indoor temperature is 25°C when covering 300# fiber felt;

6.2) Just wait for curing, and the curing time is 0.5h;

7) Clamping:

7.1) After the whole set of mold is completely painted and cured, repair the edges neatly with a knife;

7.2) Splice the mold according to the joint position of the mold, and fasten the connection with bolts;

7.3) After the mold is closed, cover the joints of the mold with a cloth, brush it once with putty, and then cover it with two layers of 04# fiber cloth with a width of 150mm, and use a brush dipped in resin to make it wet , absorb and cover with the mold, waiting for curing;

7.4) After the 04## fiber cloth is cured, cover it with two layers of 300# fiber mat again, dip the resin with a brush to make it wet and absorb it with the mold, and wait for the coating to cure;

The putty is made of resin, curing agent and talcum powder, the ratio of resin: curing agent: talcum powder is 1:0.08:1.5, the coating thickness is 2mm, the indoor temperature is 25°C, the curing time is 4-6h, and the mold is closed The part should be covered with two layers of 300# fiber felt for reinforcement;

8) Demolding:

8.1) After the coating of the above mold is completely dry and solidified, disassemble the connecting bolts, and use a rubber hammer to hit the back and edge of the mold with force to help it fall off;

8.2) After all the molds are disassembled, carry out local repairs. If the mold is not used for a long time, it is not necessary to remove the film, and the spare product is supported in the mold to prevent the mold from deforming.

Claims (3)

1. A method for treating the surface of an electric vehicle complete set of molds, characterized in that the following steps: 1) Waxing: 1.1) Preparation: place the mold flat on the ground or on the operating table, do not let the mold shake wantonly, clean the working surface of the mold with a pure cotton towel, and ensure that it is smooth and free of debris and damage; 1.2) Waxing: Apply 8# yellow wax through fine gauze cloth, and then rub it evenly on the working surface of the mold. After the entire surface is coated, wax fully after half an hour; 1.3) Wax removal: Use a towel to completely remove the yellow wax on the working surface of the mold to make it smooth and moisture-free; 2) Gel coat: 2.1) Fully stir the gel coat in the original barrel before use, but the speed should be slow to avoid mixing air. Take the gel coat through a clean water scoop, add an appropriate amount of color paste and curing agent in proportion, and stir evenly to ensure uniform color and stability; 2.2) Use a brush to evenly cover a layer of gel coat coating on the working surface of the mold. After curing, when the gel coat layer sticks to your hands without sticking to your hands, proceed to the next step. For Difficult parts of the mold to apply gel coat, such as deep grooves, the gel coat in this area takes a long time to solidify, and a small amount of ventilation can be used for curing; The thickness of the coating is 1mm, the curing time is 0.5h, and the indoor temperature is 25°C when applying the gel coat; The curing agent is a national standard curing agent; The ratio of gel coat: color paste: curing agent is 100:6:4; 3) Cover with 01 fiber cloth: 3.1) After the gel coat is cured, brush the resin, also take 123# resin with a water scoop, then add an appropriate amount of curing agent and mix well; 3.2) Apply a layer of resin evenly on the cured gel coat with a brush to avoid excessive accumulation of resin. Quickly paste the 01 fiber cloth that has been cut in advance on the resin that has just been painted and use the resin to make it completely wet. Permeable, adsorbed on the inner surface of the mold, some protrusions and depressions, according to the need to cut the cloth into a suitable size and shape; 3.3) Check carefully, the missing parts should be subsidized, and the transitional parts should be reinforced with two layers of fiber cloth; 3.4) After the 01 fiber cloth is cured, check whether there are any bubbles, and level it with a spatula; The smear ratio of described resin and curing agent is 100:4; The curing time is 0.5h. When covering with 01 fiber cloth, the indoor temperature is 25°C. 4) Apply putty: follow the above process, evenly apply one layer of putty coating on the cured 01 fiber cloth, the putty is made of resin, curing agent and talcum powder, and the ratio of resin: curing agent: talcum powder is 1:0.08:1.5, the coating thickness is 2mm, and the indoor temperature is 25°C; 5) Cover with 04 fiber cloth: After applying the putty, quickly cover a layer of 04 fiber cloth on it, and make the fiber cloth completely wet by brushing resin and curing agent, and absorb it on the mold. The resin and curing agent are evenly applied , to avoid excessive accumulation of resin, the ratio between resin and curing agent is 100:4, when covering with 04 fiber cloth, the indoor temperature is 25°C; 6) Cover cloth 300# fiber felt: 6.1) Immediately after laying 04# fiber cloth, spread 300# fiber felt on it, and brush the resin and curing agent coating again to make the fiber cloth completely wet, and use the brush to smooth the surface with proper force so that it does not Until bubbles and burrs appear, the thickness of the coating is 4mm, the ratio between resin and curing agent is 100:4, and the indoor temperature is 25°C when covering 300# fiber felt; 6.2) Just wait for curing, and the curing time is 0.5h; 7) Clamping: 7.1) After the whole set of mold is completely painted and cured, repair the edges neatly with a knife; 7.2) Splice the mold according to the joint position of the mold, and fasten the connection with bolts; 7.3) After the mold is closed, use a covering cloth on the joint of the mold, brush it once with putty, and then cover it with two layers of 04# fiber cloth with a width of 150mm, and use a brush dipped in resin to make it wet , absorb and cover with the mold, waiting for curing; 7.4) After the 04## fiber cloth is cured, cover it with two layers of 300# fiber mat again, dip the resin with a brush to make it wet and absorb it with the mold, and wait for the coating to cure; The putty is made of resin, curing agent and talcum powder, the ratio of resin: curing agent: talcum powder is 1:0.08:1.5, the coating thickness is 2mm, the indoor temperature is 25°C, the curing time is 4-6h, and the mold is closed The part should be covered with two layers of 300# fiber felt for reinforcement; 8) Demolding: 8.1) After the coating of the above mold is completely dry and solidified, disassemble the connecting bolts, and use a rubber hammer to hit the back and edge of the mold with force to help it fall off; 8.2) After all the molds are disassembled, carry out local repairs. If the mold is not used for a long time, it is not necessary to remove the film, and the spare product is supported in the mold to prevent the mold from deforming. 2. The surface treatment method of a complete set of molds for electric vehicles according to claim 1, wherein the gel coat is composed of 15 parts of rubber, 10 parts of rosin, 10 parts of modified cornstarch, 10 parts of vegetable oil, and deionized water. 15 parts and 5 parts of antioxidants are mixed and boiled. 3. The surface treatment method of a complete set of electric vehicle molds according to claim 1, wherein the color paste is composed of 10 parts of cement, 15 parts of mixed pigments, 10 parts of attapulgite clay, 15 parts of tung oil, and 8 parts of pine oil. 3 parts and 3 parts of surfactant are mixed and prepared.