阅读说明：本技术 车标的制作方法 (Method for manufacturing car logo ) 是由 王金龙 周卫琪 于 2020-06-12 设计创作，主要内容包括：本发明涉及车标的制作方法,先配制锌合金粉末,将锌合金粉末通过压铸机压铸成型为车标坯体；再对车标坯体进行精雕加工,反射面区域细化雕刻,形成多角度反射面,黑色网格区域,将网格线的线条修细；继而对精雕坯体进行表面镀金处理,超声波清洗后在活化溶液中表面活化,中和后的坯件浸入镀池溶液中镀碱铜,再中和后的坯件浸入溶液中镀酸性光亮铜,镀酸性光亮铜的坯件浸入镀镍池溶液中镀镍,镀镍后的坯件浸入镀金池溶液中镀金；最后上色,在黑色网格区域加注黑色单组分硝基油漆,在反射面区域填充红色单组分硝基染料。科学配比的锌合金粉末,提高表面硬度及加工性能；先进电镀和上色工艺,保证表面颜色的稳定性及耐候性,提高耐磨性及抗变色性能。(The invention relates to a method for manufacturing a car logo, which comprises the steps of firstly preparing zinc alloy powder, and die-casting the zinc alloy powder into a car logo blank by a die casting machine; then, carrying out fine engraving processing on the vehicle logo blank, thinning and engraving the reflecting surface area to form a multi-angle reflecting surface and a black grid area, and thinning lines of grid lines; then carrying out surface gold plating treatment on the carved blank, carrying out surface activation in an activation solution after ultrasonic cleaning, immersing the neutralized blank into a plating bath solution for plating alkali copper, immersing the neutralized blank into the solution for plating acid bright copper, immersing the blank plated with the acid bright copper into a nickel plating bath solution for plating nickel, and immersing the blank plated with the nickel into the gold plating bath solution for plating the gold; and finally coloring, namely filling black single-component nitro paint in a black grid area, and filling red single-component nitro dye in a reflecting surface area. The zinc alloy powder with scientific proportion improves the surface hardness and the processing performance; the electroplating and coloring process is advanced, the stability and the weather resistance of the surface color are ensured, and the wear resistance and the discoloration resistance are improved.)

1. The manufacturing method of the car logo is characterized by comprising the following steps: the method comprises the following steps:

preparing zinc alloy powder, wherein the zinc alloy powder comprises the following components in percentage by mass: 65-88% of zinc, 3-15% of aluminum, 0.5-8% of copper and 4-17% of magnesium;

secondly, die-casting the zinc alloy powder into a car logo green body by a die-casting machine;

carrying out fine engraving processing on the die-cast car logo blank, and carrying out fine engraving processing on the reflecting surface area and the black grid area of the car logo blank by using a semicircular cutter;

thinning and carving the reflecting surface area to form a reflecting surface capable of reflecting light at multiple angles;

in the black grid area, lines of grid lines are thinned, and edge bulges are made;

and (IV) carrying out surface gold plating treatment on the refined carving blank, comprising the following steps:

41) fixing the blank on a hanging frame, and carrying out ultrasonic cleaning in a cleaning solution;

42) activating the surface of the cleaned blank in an activating solution, wherein the activating solution comprises the following components in percentage by weight: 3.5-5% of sulfuric acid, 3-7% of hydrofluoric acid and the balance of pure water; the activation temperature is 20-35 ℃, and the activation time is 25-35 minutes;

43) immersing the activated blank into a neutralization solution, wherein the neutralization solution comprises the following components in percentage by weight: 3-5.5 g/l of pure water solution of sodium cyanide is subjected to surface neutralization;

44) immersing the neutralized blank into a plating bath solution for plating alkali copper, wherein the plating bath solution comprises the following components in percentage by weight: 12-35 g/l of cuprous cyanide, 65-86 g/l of sodium cyanide and the balance of pure water; the matching voltage is 3.5-5.5V, and the time is 5-8 minutes;

45) immersing the blank plated with the alkali copper into a solution for neutralization, wherein the ratio of the neutralization solution is as follows: 8-12% of sulfuric acid and the balance of pure water;

46) immersing the neutralized blank into a solution for plating acid bright copper, wherein the solution ratio is as follows: 45-70 mg/l of copper sulfate, 25-45 ml/l of sulfuric acid and the balance of pure water; the temperature is 20-35 ℃, and the time is 12-30 seconds;

47) immersing the blank plated with the acidic bright copper into a nickel plating bath solution for nickel plating, wherein the nickel plating bath solution is prepared from the following components in parts by weight: 120-200 g/L of nickel sulfate, 12-25 g/L of nickel chloride and the balance of pure water, and dip-plating for 8-10 minutes at a voltage of 5.5-7.5V;

48) immersing the blank after nickel plating into a gold plating bath solution for gold plating, wherein the ratio of the gold plating bath solution is as follows: 0.8-1.2 g/l of gold potassium cyanide, 40-65 g/l of conductive salt and the balance of pure water, wherein the pH value of the plating solution is 8-11, and the gold potassium cyanide is subjected to immersion plating for 45-85 seconds under the voltage of 5.5-7.5V;

fifthly, placing the blank on a fixing frame for coloring;

filling black single-component nitro-paint in the black grid area, filling each diamond grid fully, standing after color filling, and entering an oven to cure the surface;

filling red single-component nitro dye in the reflecting surface area, drying and curing after filling, and filling polymethyl methacrylate on the red surface, namely transparent color; and standing after filling is finished, and putting into an oven to cure the polymethyl methacrylate.

2. The method for manufacturing a emblem according to claim 1, characterized in that: in the step (I), the zinc alloy powder comprises the following components in percentage by mass: 87.6 percent of zinc, 4.7 percent of aluminum, 1.2 percent of copper and 6.5 percent of magnesium.

3. The method for manufacturing a emblem according to claim 1, characterized in that: step 41), the mixture ratio of the cleaning liquid is as follows: 20-40 g/l of sodium carbonate, 30-60 g/l of trisodium phosphate, 0.5-3 ml/l of Op emulsifier and the balance of pure water.

4. The method for manufacturing a emblem according to claim 1, characterized in that: and step 41), cleaning for 1-8 minutes at 35-65 ℃, and drying by hot air after cleaning.

5. The method for manufacturing a emblem according to claim 1, characterized in that: and 43), neutralizing for 20-35 seconds.

6. The method for manufacturing a emblem according to claim 1, characterized in that: and step 45), the neutralization time is 5-12 seconds.

7. The method for manufacturing a emblem according to claim 1, characterized in that: and 48) after dip plating, putting the blank into an oven with the temperature of 160-180 ℃ for baking for 1.5-2 hours.

8. The method for manufacturing a emblem according to claim 1, characterized in that: filling black single-component nitro paint in a black grid area, filling each diamond grid fully, standing for 20-40 minutes after color filling, entering an oven, and baking for 25-40 minutes at 120-140 ℃ to cure the surface;

filling red single-component nitro dye in the reflecting surface area, drying and curing after filling, and filling polymethyl methacrylate on the red surface, namely transparent color; and standing for 1-2 hours after filling, putting into an oven after standing, and baking for 2.5-4 hours at 150-180 ℃ to solidify the polymethyl methacrylate.

Technical Field

The invention relates to a manufacturing method of a car logo.

Background

At present, most of base materials of automobile logos are made of plastic materials, and the automobile logos are formed by performing surface treatment on the base materials of the automobile logos. The automobile logo is the mark of the automobile brand and is an indispensable part. The disadvantages are that: the surface coating of the automobile logo is easy to wear in the long-term use process. In addition, the automobile logo is a single part, has a single color and is a gold and silver bright monochromatic automobile logo.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, integrates the wire inlay color filling method of the traditional cloisonne enamel process in China, and provides a method for manufacturing a car logo.

The purpose of the invention is realized by the following technical scheme:

the manufacturing method of the car logo is characterized in that: the method comprises the following steps:

preparing zinc alloy powder, wherein the zinc alloy powder comprises the following components in percentage by mass: 65-88% of zinc, 3-15% of aluminum, 0.5-8% of copper and 4-17% of magnesium;

secondly, die-casting the zinc alloy powder into a car logo green body by a die-casting machine;

carrying out fine engraving processing on the die-cast car logo blank, and carrying out fine engraving processing on the reflecting surface area and the black grid area of the car logo blank by using a semicircular cutter;

thinning and carving the reflecting surface area to form a reflecting surface capable of reflecting light at multiple angles;

in the black grid area, lines of grid lines are thinned, and edge bulges are made;

and (IV) carrying out surface gold plating treatment on the refined carving blank, comprising the following steps:

41) fixing the blank on a hanging frame, and carrying out ultrasonic cleaning in a cleaning solution;

42) activating the surface of the cleaned blank in an activating solution, wherein the activating solution comprises the following components in percentage by weight: 3.5-5% of sulfuric acid, 3-7% of hydrofluoric acid and the balance of pure water; the activation temperature is 20-35 ℃, and the activation time is 25-35 minutes;

43) immersing the activated blank into a neutralization solution, wherein the neutralization solution comprises the following components in percentage by weight: 3-5.5 g/l of pure water solution of sodium cyanide is subjected to surface neutralization;

44) immersing the neutralized blank into a plating bath solution for plating alkali copper, wherein the plating bath solution comprises the following components in percentage by weight: 12-35 g/l of cuprous cyanide, 65-86 g/l of sodium cyanide and the balance of pure water; the matching voltage is 3.5-5.5V, and the time is 5-8 minutes;

45) immersing the blank plated with the alkali copper into a solution for neutralization, wherein the ratio of the neutralization solution is as follows: 8-12% of sulfuric acid and the balance of pure water;

46) immersing the neutralized blank into a solution for plating acid bright copper, wherein the solution ratio is as follows: 45-70 mg/l of copper sulfate, 25-45 ml/l of sulfuric acid and the balance of pure water; the temperature is 20-35 ℃, and the time is 12-30 seconds;

47) immersing the blank plated with the acidic bright copper into a nickel plating bath solution for nickel plating, wherein the nickel plating bath solution is prepared from the following components in parts by weight: 120-200 g/L of nickel sulfate, 12-25 g/L of nickel chloride and the balance of pure water, and dip-plating for 8-10 minutes at a voltage of 5.5-7.5V;

48) immersing the blank after nickel plating into a gold plating bath solution for gold plating, wherein the ratio of the gold plating bath solution is as follows: 0.8-1.2 g/l of gold potassium cyanide, 40-65 g/l of conductive salt and the balance of pure water, wherein the pH value of the plating solution is 8-11, and the gold potassium cyanide is subjected to immersion plating for 45-85 seconds under the voltage of 5.5-7.5V;

fifthly, placing the blank on a fixing frame for coloring;

filling black single-component nitro-paint in the black grid area, filling each diamond grid fully, standing after color filling, and entering an oven to cure the surface;

filling red single-component nitro dye in the reflecting surface area, drying and curing after filling, and filling polymethyl methacrylate on the red surface, namely transparent color; and standing after filling is finished, and putting into an oven to cure the polymethyl methacrylate.

Further, the manufacturing method of the car logo comprises the following steps of (a) preparing zinc alloy powder by mass: 87.6 percent of zinc, 4.7 percent of aluminum, 1.2 percent of copper and 6.5 percent of magnesium.

Further, in the above method for manufacturing the emblem, in step 41), the ratio of the cleaning liquid is: 20-40 g/l of sodium carbonate, 30-60 g/l of trisodium phosphate, 0.5-3 ml/l of Op emulsifier and the balance of pure water.

Further, in the manufacturing method of the car logo, in the step 41), the cleaning time is 1-8 minutes, the cleaning temperature is 35-65 ℃, and hot air drying is performed after cleaning is completed.

Further, in the manufacturing method of the car logo, in step 43), the neutralization time is 25-35 seconds.

Further, in the manufacturing method of the car logo, in the step 45), the neutralization time is 5-12 seconds.

Further, in the manufacturing method of the car logo, in step 48), after dip coating, the blank is placed into an oven with the temperature of 160-180 ℃ for baking, and the baking time is 1.5-2 hours.

Further, the manufacturing method of the car logo comprises the step (V), black single-component nitro paint is filled in the black grid area, each diamond grid is filled fully, the car logo is placed for 20-40 minutes after color filling, then the car logo enters an oven and is baked for 25-40 minutes at 120-140 ℃, and the surface of the car logo is cured;

filling red single-component nitro dye in the reflecting surface area, drying and curing after filling, and filling polymethyl methacrylate on the red surface, namely transparent color; and standing for 1-2 hours after filling, putting into an oven after standing, and baking for 2.5-4 hours at 150-180 ℃ to solidify the polymethyl methacrylate.

Compared with the prior art, the invention has obvious advantages and beneficial effects, and is embodied in the following aspects:

the zinc alloy powder is scientifically proportioned, so that the surface hardness and the processing performance of a product are improved, the density of a die casting is improved, and an air cavity is prevented from being generated inside the die casting; the prepared material has good fluidity in a molten state, and can better embody the details of a finished product; the zinc, aluminum, copper and magnesium are optimally configured, wherein the zinc powder is taken as a main body, if the pure zinc powder is easy to generate an air cavity during die casting, the surface smoothness is poor, the subsequent polishing and electroplating processes are not facilitated, and after the aluminum powder and the copper powder are added together, the compactness of a die-casting workpiece is remarkably improved, and the generation probability of the air cavity is greatly reduced; the magnesium powder is added, so that the hardness of the workpiece can be improved, and subsequent polishing and fine carving processing are facilitated; the design intention of a car logo designer is realized to the greatest extent, and the limitation of the conventional plastic process is broken through;

secondly, an advanced electroplating process is adopted, the fastness and the anti-tarnishing capacity of the plating layer are improved to the maximum extent through the matching of a plurality of electroplating processes, and the electroplating process effect is ensured by firstly carrying out ultrasonic cleaning to remove oil stains and impurities on the surface of a workpiece; then activating the surface in the activating solution, and activating the surface of the workpiece, so as to facilitate the next process; the neutralized blank is immersed in a plating bath solution for plating alkali copper, and the pre-plating of the alkali copper can improve the binding force between a basic plating layer and a workpiece and improve the plating layer fastness; the neutralized blank is immersed in the solution to be plated with acid bright copper, so that the glossiness of the workpiece is improved, the thickness of a plating layer of a nickel layer is reduced, and the surface effect of the workpiece is improved while the cost is reduced; immersing the blank plated with the acid bright copper into a nickel plating bath solution for nickel plating; finally, immersing the blank after nickel plating into a gold plating bath solution for gold plating; the electroplating process combination obviously reduces the output of wastewater in production, and has outstanding environmental protection and cost advantages; the stability and the weather resistance of the surface color of the vehicle logo are ensured;

thirdly, filling black single-component nitro-paint in the black grid area, wherein each diamond grid is filled fully; the red single-component nitro dye is filled in the reflecting surface area, and the wire inlay color filling technology is adopted, so that the color reduction degree is high, the wear resistance and the discoloration resistance can be greatly improved in the use process, and the weather resistance, the discoloration resistance and the color durability of the car logo are outstanding.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims thereof.

Drawings

FIG. 1: a schematic front view of the car logo;

FIG. 2: schematic side view of car logo.

Detailed Description

In order to more clearly understand the technical features, objects, and effects of the present invention, specific embodiments will now be described in detail.

The key to the processes of vehicle logo selection, material selection and electroplating is that the use requirement of the vehicle logo product is high, the vehicle logo product is attractive, and the requirements on weather resistance, anti-tarnishing capability and overall strength are high.

The manufacturing method of the car logo, as shown in fig. 1 and 2, comprises the following steps:

preparing zinc alloy powder, wherein the zinc alloy powder comprises the following components in percentage by mass: 65-88% of zinc, 3-15% of aluminum, 0.5-8% of copper and 4-17% of magnesium;

secondly, die-casting the zinc alloy powder into a car logo green body by a die-casting machine;

carrying out fine engraving on the die-cast car logo blank, and carrying out fine engraving on a reflecting surface area (F area) and a black grid area (K area) of the car logo blank by using a semicircular cutter;

the reflecting surface area (F area) is thinned and carved to form a reflecting surface capable of reflecting light at multiple angles;

a black grid area (K area), wherein lines of grid lines are thinned, and edge bulges are made;

and (IV) carrying out surface gold plating treatment on the refined carving blank, comprising the following steps:

41) the blank is fixed on the hanger and is ultrasonically cleaned in the cleaning liquid, and the cleaning liquid is prepared from the following components in percentage by weight: 20-40 g/l of sodium carbonate, 30-60 g/l of trisodium phosphate, 0.5-3 ml/l of Op emulsifier and the balance of pure water, wherein the cleaning time is 1-8 minutes, the cleaning temperature is 35-65 ℃, and hot air drying is performed after cleaning; oil stains and impurities on the surface of the workpiece are removed, and the electroplating process effect is ensured;

42) activating the surface of the cleaned blank in an activating solution, wherein the activating solution comprises the following components in percentage by weight: 3.5-5% of sulfuric acid, 3-7% of hydrofluoric acid and the balance of pure water, wherein the activation temperature is 20-35 ℃, and the activation time is 25-35 minutes; the surface of the workpiece is activated, so that the next process is facilitated;

43) immersing the activated blank into a neutralization solution, wherein the neutralization solution comprises the following components in percentage by weight: 3-5.5 g/l of pure water solution of sodium cyanide is subjected to surface neutralization, and the neutralization time is 20-35 seconds;

44) immersing the neutralized blank into a plating bath solution for plating alkali copper, wherein the plating bath solution comprises the following components in percentage by weight: 12-35 g/l of cuprous cyanide, 65-86 g/l of sodium cyanide and the balance of pure water, wherein the matching voltage is 3.5-5.5V, and the time is 5-8 minutes; the pre-plating of the alkali copper is to improve the binding force between a basic plating layer and a workpiece and improve the fastness of the plating layer;

45) immersing the blank plated with the alkali copper into a solution for neutralization, wherein the ratio of the neutralization solution is as follows: 8-12% of sulfuric acid and the balance of pure water, wherein the neutralization time is 5-12 seconds;

46) immersing the neutralized blank into a solution for plating acid bright copper, wherein the solution ratio is as follows: 45-70 mg/l of copper sulfate, 25-45 ml/l of sulfuric acid and the balance of pure water, wherein the temperature is 20-35 ℃, and the time is 12-30 seconds; the bright copper plating can improve the glossiness of the workpiece, reduce the thickness of a plating layer of a nickel layer, and improve the surface effect of the workpiece while reducing the cost;

47) immersing the blank plated with the acidic bright copper into a nickel plating bath solution for nickel plating, wherein the nickel plating bath solution is prepared from the following components in parts by weight: 120-200 g/L of nickel sulfate, 12-25 g/L of nickel chloride and the balance of pure water, and dip-plating for 8-10 minutes under the voltage of 5.5-7.5V;

48) immersing the blank after nickel plating into a gold plating bath solution for gold plating, wherein the ratio of the gold plating bath solution is as follows: 0.8-1.2 g/l of gold potassium cyanide, 40-65 g/l of conductive salt and the balance of pure water, wherein the pH value of the plating solution is 8-11, the voltage is 5.5-7.5V, and the immersion plating is carried out for 45-85 seconds;

placing the blank into an oven with the temperature of 160-180 ℃ for high-temperature baking for 1.5-2 hours; performing thermal vibration inspection on the workpiece, and timely finding quality defects such as workpiece blistering and the like;

fifthly, placing the blank on a fixing frame for coloring;

filling black single-component nitro paint in a black grid area (K area), filling each diamond grid fully, standing for 20-40 minutes after color filling, entering an oven, and baking for 25-40 minutes at 120-140 ℃ to cure the surface;

filling red single-component nitro dye in the reflecting surface area (area F), drying and curing after filling, and filling polymethyl methacrylate on the red surface, namely transparent color; and standing for 1-2 hours after filling, and then putting into an oven, baking for 2.5-4 hours at the temperature of 150-180 ℃ to solidify the polymethyl methacrylate.