Product circulation system

Abstract

The product circulation system comprises the steps that copper machined product surface primary treatment is conducted; the surface of the copper processed product is kept in a non-oxidation discoloration state; transferring the copper product and removing the cutting fluid on the surface of the copper product; a cutting fluid residue prevention treatment procedure; a hydrocarbon cleaning machine is started, and the copper machined product taken out of the water cutting agent tank is automatically cleaned through the hydrocarbon cleaning machine; taking and storing the materials; according to the product circulation system, corrosion of cutting fluid to copper in the circulation process is reduced, oxidation of a copper body is reduced, water on the surface of copper is removed, and a workpiece is cleaned more thoroughly. And the copper product is processed and reserved, and the subsequent soaking cutting fluid is further recycled, so that the industrial green production is ensured, and the environment is not polluted.

Description

Technical Field

[0001] The present invention belongs to the technical field, and in particular relates to a product circulation system. Background Art

[0002] Copper is easily oxidized in the air to form patina. This corrosion product will form a green film on the surface of copper, affecting the appearance of copper. The formation of patina will further lead to the deterioration of the mechanical properties of copper materials:

[0003] (1) Decreased electrical conductivity: The copper oxide layer usually has poor electrical conductivity, which affects the performance of copper as an electrical conductor;

[0004] (2) Reduced thermal conductivity: The thermal conductivity of the oxide layer is much lower than that of pure copper, which reduces the effectiveness of copper in applications that require good thermal conductivity.

[0005] (3) Decreased structural strength: Verdigris is a loose substance. Its formation will cause the strength of copper structures to decrease, which is a serious problem in load-bearing or precision instrument components.

[0006] (4) Impact on connection reliability: In electrical connections, the oxides generated by copper oxidation will cause the contact resistance to increase, thus affecting the reliability and stability of the connection.

[0007] Generally, we use hydrocarbons to clean copper parts, but hydrocarbons cannot clean oxidized copper parts. At the same time, some machine tools use cutting fluid to process products. The cutting fluid contains water, which will also affect the workpiece products during hydrocarbon cleaning. Therefore, the circulation of copper parts after processing and the removal of moisture on the workpiece surface are particularly important. Summary of the invention

[0008] According to the above technical content, the present invention provides a product circulation system, which can play a technical effect of anti-oxidation and improving product yield during the circulation and transportation of copper products.

[0009] To achieve the above object, the technical solution of the present invention is as follows:

[0010] A product circulation system, characterized by comprising the following steps:

[0011] Step 1: Preliminary surface treatment of copper products;

[0012] After waiting for the copper product processing process to be completed, the staff will use high-pressure air duct equipment to preliminarily clean the copper chips, impurities and cutting fluid on the surface of the copper product;

[0013] Step 2: Keep the surface of the copper product in a non-oxidative discoloration state;

[0014] The treated copper products are uniformly immersed in a cutting fluid frame, and the cutting fluid concentration in the cutting fluid frame is between 5% and 8%. During the storage process, it is necessary to ensure that the cutting fluid flows over the surface of the copper products so that the products are completely immersed in the cutting fluid;

[0015] The copper processed products immersed in the cutting fluid frame shall not be placed for more than two hours;

[0016] Step 3: Transfer the copper product and remove the cutting fluid from the surface of the copper product;

[0017] The copper processed products soaked in enough water are taken out from the cutting fluid frame, and the copper processed products are then passed through a high-pressure air duct to complete the surface cutting fluid removal process, thereby reducing the cutting fluid residue on the surface of the copper processed products;

[0018] The copper product from which the surface cutting fluid is initially removed is transferred to the first clean water frame until the copper product in the first clean water frame is full, during which the cutting fluid attached to the surface of the copper product can be cleaned faster by manual shaking or auxiliary shaking of a robotic arm;

[0019] Step 4: Prevent cutting fluid residue treatment process;

[0020] The copper product washed in the first clean water frame is extracted and transferred to the second clean water frame for temporary storage.

[0021] Step 5: Clean and separate the copper product from the cutting fluid;

[0022] The copper processed products temporarily stored in the clean water frame are uniformly extracted and placed in a dehydration frame filled with a dehydrating agent for 3 to 5 minutes;

[0023] Then the copper product placed in the dehydration frame for dehydration is extracted and transferred to the water-cutting agent tank for further surface moisture treatment;

[0024] Step 6: Turn on the hydrocarbon cleaning machine and automatically clean the copper processed products taken out of the water-cutting agent tank through the hydrocarbon cleaning machine;

[0025] Step 7: Take the material and store it;

[0026] The copper processed products cleaned by the hydrocarbon cleaning machine are transported to a constant temperature and humidity room for storage.

[0027] Further, in step 2, the process of adjusting the cutting fluid is as follows:

[0028] First, add water, then add the cutting fluid stock solution, and stir it continuously and fully. During the stirring process, the stirring robot arm can be used to complete the uniform stirring process instead of manual work, and the solution is stirred to a stable state of water-in-oil;

[0029] The mixing ratio is adjusted according to the type of cutting fluid and processing requirements. Here, the ratio is first adjusted to 1:20, that is, the cutting fluid concentration is 5%. In subsequent use, the cutting fluid concentration should not exceed 8%.

[0030] Furthermore, in the process of testing the concentration of cutting fluid, a refractometer can be used to complete the testing process;

[0031] And the detection time interval is the immersion operation time of the replaced copper product.

[0032] Furthermore, during the testing process, the cutting fluid also needs to be tested for its own pH value, and the pH value of the cutting fluid can be controlled at around 7 to maintain the stability of the cutting fluid.

[0033] Furthermore, in step five, during the use of the dehydrating agent, the dehydrating agent spray gun needs to be uniformly controlled by the electromagnetic nozzle, and during the spraying of the dehydrating agent, the copper product needs to be transported to the dehydrating frame built into the designated sealed dehydrating box to complete the dehydration process;

[0034] The dehydration box has a built-in negative pressure pipe, which can collect and process the dehydrating agent, excess impurities and gas in the dehydration process.

[0035] Furthermore, in step three, during the initial cleaning of the cutting fluid for the copper product, the water temperature needs to be controlled between 18°C ​​and 25°C, so as to avoid the cutting fluid from agglomerating at too high or too low a temperature.

[0036] Furthermore, in step six, when the hydrocarbon cleaning machine is turned on to clean the copper product, a quick cleaning process can be completed with ordinary ultrasonic waves before that, so as to avoid leaving defects or cleaning dead corners after hard contact between the object and the copper product.

[0037] Compared with the prior art, the present invention provides a product circulation system, which reduces the corrosion of copper by cutting fluid during the circulation process, reduces the oxidation of copper, removes moisture on the surface of copper, and makes the workpiece cleaning cleaner. At the same time, it also utilizes the recycled clean water immersion recycling structure to retain the copper product itself and further recycle the subsequent immersion cutting fluid, ensuring industrial green production without polluting the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 The figure is a flow chart of the product circulation system of the present invention. DETAILED DESCRIPTION

[0039] The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0040] like Figure 1 As shown, the product circulation system of the present invention is characterized by comprising the following steps:

[0041] Step 1: Preliminary surface treatment of copper products;

[0042] After waiting for the copper product processing process to be completed, the staff will use high-pressure air duct equipment to preliminarily clean the copper chips, impurities and cutting fluid on the surface of the copper product;

[0043] In the process of preliminary treatment of cutting fluid in step 1, some residues are still retained, and the cutting fluid is rich in water, which is wrapped or mixed by the emulsifier, chemical synthetic base oil and lubricant in the water-based cutting fluid. It is difficult to remove it by ordinary inertial treatment methods. Therefore, it is deduced that:

[0044] Embodiment 1;

[0045] The copper products that have not been cleaned of cutting fluid are directly in contact with the hydrocarbon cleaning agent built into the hydrocarbon cleaning machine. Hydrocarbon cannot clean the oxidized copper parts. At the same time, some machine tools use cutting fluid to process products. The cutting fluid contains water, which will also affect the workpiece products during hydrocarbon cleaning.

[0046] And through the reaction formula:

[0047] Cu+H2O→CuO+H2

[0048] Therefore, it can be concluded from the above formula that copper products rich in water will react with water to generate a large amount of copper oxide during transportation and circulation. During the cleaning process of copper oxide with hydrocarbon cleaning agents, it will be impossible to remove a large amount of CuO from the same surface, which will eventually lead to low cleaning efficiency of the hydrocarbon cleaning machine and inability to produce finished products.

[0049] Step 2: Keep the surface of the copper product in a non-oxidative discoloration state;

[0050] The treated copper products are uniformly immersed in a cutting fluid frame, and the cutting fluid concentration in the cutting fluid frame is between 5% and 8%. During the storage process, it is necessary to ensure that the cutting fluid flows over the surface of the copper products so that the products are completely immersed in the cutting fluid;

[0051] The copper processed products immersed in the cutting fluid frame shall not be placed for more than two hours;

[0052] Embodiment 2:

[0053] In step 2, the initially purged copper product is placed back in a cutting fluid with a concentration between 5% and 8%, with 5% being the most critical concentration. This concentration is used as the concentration of the cutting fluid used in the lathe processing of this application, so that it should also be adapted to the later transportation process to prevent oxidation and discoloration.

[0054] Therefore, re-immersing in a frame tank with a concentration of 5% cutting fluid can be used as an important step for batch transportation and temporary storage of products. This step can improve the efficiency of batch storage of copper products in the antioxidant transportation process and adapt to the antioxidant environment.

[0055] At the same time, the oxidation time and oxidation formula of copper products in different environments:

[0056] 2Cu+02→2Cu0

[0057] This reaction is an oxidation reaction, in which the copper atoms lose electrons to become Cu2+ ions, and the oxygen molecules accept electrons to become O2- ions. Copper oxide (CuO) is a black solid substance that covers the surface of the copper.

[0058] The process of copper oxidation and blackening is usually a gradual process, from bright yellow copper to dark black. This is because the copper oxide layer will continue to thicken, gradually covering the surface of the copper metal.

[0059] In summary, the copper product will further accelerate the speed of discoloration on its surface in air and water. Therefore, the above two steps can effectively reduce the oxidation rate of the copper product.

[0060] Step 3: Transfer the copper product and remove the cutting fluid from the surface of the copper product;

[0061] The copper processed products soaked in enough water are taken out from the cutting fluid frame, and the copper processed products are then passed through a high-pressure air duct to complete the surface cutting fluid removal process, thereby reducing the cutting fluid residue on the surface of the copper processed products;

[0062] The copper product from which the surface cutting fluid is initially removed is transferred to the first clean water frame until the copper product in the first clean water frame is full, during which the cutting fluid attached to the surface of the copper product can be cleaned faster by manual shaking or auxiliary shaking of a robotic arm;

[0063] Step 4: Prevent cutting fluid residue treatment process;

[0064] The copper product washed in the first clean water frame is extracted and transferred to the second clean water frame for temporary storage.

[0065] Steps three and four are used to remove cutting fluid. Since the cutting fluid is rich in various substances, these substances cannot be completely cleaned during the final hydrocarbon cleaning process to complete the surface cleaning of the product, resulting in certain residues on the product itself or incomplete cleaning, which ultimately affects the quality of the product.

[0066] Embodiment three;

[0067] Cutting fluid is an industrial liquid used in metal cutting and grinding processes. Its main function is to cool and lubricate tools and workpieces. It is scientifically compounded with a variety of super-functional additives and has good cooling, lubrication, rust prevention, oil removal and cleaning, anti-corrosion and easy dilution properties.

[0068] Water-based cutting fluid is a cutting fluid that dilutes oil with a large amount of water, usually containing 5 to 20 percent of oil. It is divided into emulsions, microemulsions and chemical aqueous solutions, and has good cooling, lubricity and environmental protection characteristics.

[0069] It should be emphasized in step 3 that the first clean water frame needs to be replaced with new clean water immediately when there are obvious impurities, and the second clean water frame is also the same, so as to ensure that the copper products are not disturbed by other impurities during storage. At the same time, the water-based cutting fluid can be collected in the waste water after cleaning, and it can be uniformly recycled and reused.

[0070] Step 5: Clean and separate the copper product from the cutting fluid;

[0071] The copper processed products temporarily stored in the clean water frame are uniformly extracted and placed in a dehydration frame filled with a dehydrating agent for 3 to 5 minutes;

[0072] Then the copper product placed in the dehydration frame for dehydration is extracted and transferred to the water-cutting agent tank for further surface moisture treatment;

[0073] Embodiment 4:

[0074] The purpose of step five is to remove as much moisture as possible from the surface of the copper product, and to prevent excess moisture from coming into direct contact with the hydrocarbon cleaning agent of the hydrocarbon cleaning machine.

[0075] Hydrocarbon cleaning agent is a solvent widely used in industrial cleaning. It is mainly made of hydrocarbons composed of two elements: carbon and hydrogen. The chemical structure of hydrocarbon cleaning agent is stable and does not react with most substances, so it does not corrode metal substances. As an environmentally friendly cleaning solvent, it has no sewage discharge problem compared with water-based cleaning agents, and VOCs emissions meet national standards and can be recycled through distillation. Good cleaning performance: Due to its non-polar characteristics, it can effectively clean mineral oil, etc.

[0076] Step 6: Turn on the hydrocarbon cleaning machine and automatically clean the copper processed products taken out of the water-cutting agent tank through the hydrocarbon cleaning machine;

[0077] Step 7: Take the material and store it;

[0078] The copper processed products cleaned by the hydrocarbon cleaning machine are transported to a constant temperature and humidity room for storage.

[0079] Embodiment five;

[0080] 1. After copper products are processed, they are placed in the air. Black spots will appear on the surface in about 2 hours, and subsequent cleaning cannot clean them completely.

[0081] 2. After copper products are processed, if they are placed directly in water, the surface will change color in about 18 hours;

[0082] 3. If you use our circulation solution, it can keep color unchanged for 48 hours;

[0083] 4. If the dehydrating agent is not used, white cutting fluid will solidify and remain on the surface of some products after cleaning;

[0084] 5. If the water-cutting agent is not used, there will still be moisture on the surface during cleaning, causing the copper surface to darken and black spots to appear.

[0085] 6. If it is not placed in a constant temperature room after cleaning, the copper surface will darken in about 30 days. If it is placed in a constant temperature room, it can be stored for 3 months or even longer.

[0086] Further, in step 2, the process of adjusting the cutting fluid is as follows:

[0087] First, add water, then add the cutting fluid stock solution, and stir it continuously and fully. During the stirring process, the stirring robot arm can be used to complete the uniform stirring process instead of manual work, and the solution is stirred to a stable state of water-in-oil;

[0088] The mixing ratio is adjusted according to the type of cutting fluid and processing requirements. Here, the ratio is first adjusted to 1:20, that is, the cutting fluid concentration is 5%. In subsequent use, the cutting fluid concentration should not exceed 8%.

[0089] Furthermore, in the process of testing the concentration of cutting fluid, a refractometer can be used to complete the testing process;

[0090] And the detection time interval is the immersion operation time of the replaced copper product.

[0091] Furthermore, during the testing process, the cutting fluid also needs to be tested for its own pH value, and the pH value of the cutting fluid can be controlled at around 7 to maintain the stability of the cutting fluid.

[0092] Furthermore, in step five, during the use of the dehydrating agent, the dehydrating agent spray gun needs to be uniformly controlled by the electromagnetic nozzle, and during the spraying of the dehydrating agent, the copper product needs to be transported to the dehydrating frame built into the designated sealed dehydrating box to complete the dehydration process;

[0093] The dehydration box has a built-in negative pressure pipe, which can collect and process the dehydrating agent, excess impurities and gas in the dehydration process.

[0094] Furthermore, in step three, during the initial cleaning of the cutting fluid for the copper product, the water temperature needs to be controlled between 18°C ​​and 25°C, so as to avoid the cutting fluid from agglomerating at too high or too low a temperature.

[0095] Furthermore, in step six, when the hydrocarbon cleaning machine is turned on to clean the copper product, a quick cleaning process can be completed with ordinary ultrasonic waves before that, so as to avoid leaving defects or cleaning dead corners after hard contact between the object and the copper product.

[0096] It should be noted that the above content only illustrates the technical idea of ​​the present invention and cannot be used to limit the protection scope of the present invention. For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications all fall within the protection scope of the claims of the present invention.

Claims

1. A product circulation system, characterized by: Includes the following step; Step 1: Preliminary surface treatment of copper products; After waiting for the copper product processing process to be completed, the staff will use high-pressure air duct equipment to preliminarily clean the copper chips, impurities and cutting fluid on the surface of the copper product; Step 2: Keep the surface of the copper product in a non-oxidative discoloration state; The treated copper products are uniformly immersed in a cutting fluid frame, and the cutting fluid concentration in the cutting fluid frame is between 5% and 8%. During the storage process, it is necessary to ensure that the cutting fluid flows over the surface of the copper products so that the products are completely immersed in the cutting fluid; The copper processed products immersed in the cutting fluid frame shall not be placed for more than two hours; Step 3: Transfer the copper product and remove the cutting fluid from the surface of the copper product; The copper processed products soaked in enough water are taken out from the cutting fluid frame, and the copper processed products are then passed through a high-pressure air duct to complete the surface cutting fluid removal process, thereby reducing the cutting fluid residue on the surface of the copper processed products; The copper product from which the surface cutting fluid is initially removed is transferred to the first clean water frame until the copper product in the first clean water frame is full, during which the cutting fluid attached to the surface of the copper product can be cleaned faster by manual shaking or auxiliary shaking of a robotic arm; Step 4: Prevent cutting fluid residue treatment process; The copper product washed in the first clean water frame is extracted and transferred to the second clean water frame for temporary storage. Step 5: Clean and separate the copper product from the cutting fluid; The copper processed products temporarily stored in the clean water frame are uniformly extracted and placed in a dehydration frame filled with a dehydrating agent for 3 to 5 minutes; Then the copper product placed in the dehydration frame for dehydration is extracted and transferred to the water-cutting agent tank for further surface moisture treatment; Step 6: Turn on the hydrocarbon cleaning machine and automatically clean the copper processed products taken out of the water-cutting agent tank through the hydrocarbon cleaning machine; Step 7: Take the material and store it; The copper processed products cleaned by the hydrocarbon cleaning machine are transported to a constant temperature and humidity room for storage.

2. The product circulation system according to claim 1, characterized in that: In step 2, the process of adjusting the cutting fluid is as follows: First, add water, then add the cutting fluid stock solution, and stir it continuously and fully. During the stirring process, the stirring robot arm can be used to complete the uniform stirring process instead of manual work, and the solution is stirred to a stable state of water-in-oil; The mixing ratio is adjusted according to the type of cutting fluid and processing requirements. Here, the ratio is first adjusted to 1:20, that is, the cutting fluid concentration is 5%. In subsequent use, the cutting fluid concentration should not exceed 8%.

3. The product circulation system according to claim 2, characterized in that: When testing the concentration of cutting fluid, a refractometer can be used to complete the testing process; And the detection time interval is the immersion operation time of the replaced copper product.

4. The product circulation system according to claim 3 is characterized in that: During the testing process of the cutting fluid, its own pH value needs to be tested at the same time. The pH value of the cutting fluid can be controlled at around 7 to maintain the stability of the cutting fluid.

5. The product circulation system according to claim 1 is characterized in that: In step 5, during the use of the dehydrating agent, the dehydrating agent spray gun needs to be uniformly controlled by the electromagnetic nozzle, and during the spraying of the dehydrating agent, the copper product needs to be transported to the dehydrating frame built into the designated sealed dehydrating box to complete the dehydration process; The dehydration box has a built-in negative pressure pipe, which can collect and process the dehydrating agent, excess impurities and gas in the dehydration process.

6. The product circulation system according to claim 1, characterized in that: In step three, during the initial cleaning of the cutting fluid for copper products, the water temperature needs to be controlled between 18°C ​​and 25°C to prevent the cutting fluid from agglomerating at too high or too low a temperature.

7. The product circulation system according to claim 1, characterized in that: In step six, when the hydrocarbon cleaning machine is turned on to clean the copper product, a quick cleaning process can be completed with ordinary ultrasonic waves before that. This can avoid leaving defects or cleaning dead corners after hard contact between the object and the copper product.

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