Preparation method of magnesium alloy release agent that is easy to clean

Abstract

This invention discloses a method for preparing a convenient-to-clean magnesium alloy release agent, comprising the following steps: S1: raw material proportioning; S2: preparation of preliminary mixture; S3: crushing and sieving; S4: heating and stirring; S5: adding liquid raw materials; S6: secondary stirring; S7: secondary sieving; S8: sampling and testing; S9: packaging. This invention, by mixing organosilanes, synthetic esters, polypropylene, polyethylene, and deionized water according to corresponding proportions, produces a magnesium alloy release agent with unique lubricity, high-temperature resistance, wear resistance, and the ability to meet the needs of different magnesium alloy semi-solid molding processes. This improves production efficiency, reduces costs, and offers advantages such as good adhesion, uniformity, durability, and self-cleaning. It also reduces the number of mold cleaning cycles, significantly extending mold lifespan. Furthermore, it is environmentally friendly and energy-saving, and after use, it can be biodegraded and recycled, helping to reduce waste emissions.

Description

Technical Field

[0001] This invention relates to the field of magnesium alloy release agent preparation technology, specifically a method for preparing a magnesium alloy release agent that is easy to clean. Background Technology

[0002] In processes such as metal die casting and casting, release agents form a film on the contact surface between the mold and the molded part, reducing the adhesion and friction between the mold and the molded part, making it easier for the finished product to detach from the mold. This release film not only reduces friction but also protects the mold surface from damage, extends the mold life, makes the surface of the finished product smoother, and effectively shortens the demolding time of the finished product. While improving product production efficiency, it can also reduce the number of times the mold needs to be cleaned.

[0003] However, existing release agents are difficult to promote the formation of semi-solid die-cast parts during the molding process. They have poor adhesion and do not have a significant auxiliary effect on the demolding of semi-solid die-cast parts. Furthermore, they can cause cold material, carbon buildup, and cracking in semi-solid die-cast parts. At the same time, it makes it difficult to clean the mold after demolding the semi-solid die-cast parts. Therefore, we propose a method for preparing a magnesium alloy release agent that is easy to clean. Summary of the Invention

[0004] The purpose of this invention is to provide a convenient method for preparing a magnesium alloy release agent, in order to solve the problem mentioned in the background art that existing release agents bring a series of negative effects and are not very practical during the semi-solid die-casting process.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a method for preparing a magnesium alloy release agent that is easy to clean, comprising the following steps:

[0006] S1: Raw material ratio, which specifies the proportion of each component of the raw materials;

[0007] S2: Preparing a preliminary mixture by mixing and stirring solid raw materials according to the specified proportions to form a preliminary mixture;

[0008] S3: Crushing and screening, using a crushing device to crush the preliminary mixture and then screening the crushed preliminary mixture;

[0009] S4: Heat and stir the mixture. Put all the preliminary mixture and liquid raw materials except for deionized water into the mixing tank and raise the internal temperature of the mixing tank. Stir the preliminary mixture continuously during the heating process.

[0010] S5: Add liquid raw materials. When the temperature of the secondary mixture drops to 90℃, add the liquid raw materials.

[0011] S6: Secondary mixing, the secondary mixture containing the added liquid raw materials is stirred a second time;

[0012] S7: Secondary screening, the magnesium alloy release agent after secondary stirring is heated and screened to remove internal impurities;

[0013] S8: Sampling inspection, sampling inspection of various indicators inside the magnesium alloy release agent;

[0014] S9: Loading into barrels: Load the qualified magnesium alloy release agent into the barrels and let it stand to form.

[0015] Preferably, the raw materials in S1 include organosilane, synthetic ester, polypropylene, polyethylene and deionized water, and the raw material composition is: 80g organosilane, 20g synthetic ester, 15g polypropylene, 25g polyethylene and 90g deionized water.

[0016] Preferably, the organosilane is composed of silicon and carbon atoms, and the synthetic ester is prepared by esterification of an acid and an alcohol.

[0017] Preferably, both the polypropylene and polyethylene are plastic materials, and the deionized water is pure water with impurities in ionic form removed.

[0018] Preferably, in step S3, the partially crushed preliminary mixture is fed back into the crushing device for crushing, and the above operation is repeated until the preliminary mixture is completely sieved.

[0019] Preferably, during the S4 reaction process, the material is gradually heated, and at the same time, the water vapor discharged from the mixing tank is collected and stored.

[0020] Preferably, in step S4, after the temperature of the initial mixture is raised to 130°C, heating is stopped to form a secondary mixture.

[0021] Preferably, the liquid raw material in S5 includes deionized water in the prepared mass proportions and a liquid formed from water vapor collected in S4.

[0022] Preferably, the stirring time for the secondary mixture of liquid raw materials added in step S6 is 10-20 minutes.

[0023] Preferably, in step S6, after stirring until the mixture in the mixing tank becomes clear and transparent, stirring is stopped to form the final magnesium alloy release agent required for preparation.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] This invention involves mixing organosilanes, synthetic esters, polypropylene, polyethylene, and deionized water in corresponding proportions to create a magnesium alloy release agent with unique lubricity, high temperature resistance, wear resistance, and the ability to meet the needs of different magnesium alloy semi-solid molding processes. This improves production efficiency, reduces costs, and offers advantages such as good adhesion, uniformity, durability, and self-cleaning. It also reduces the number of mold cleaning cycles, significantly extends the service life of molds, and has environmental and energy-saving advantages. After use, it can be biodegraded and recycled, helping to reduce waste emissions. Attached Figure Description

[0026] Figure 1 This is a schematic flowchart illustrating the preparation method of the magnesium alloy release agent for easy cleaning according to the present invention. Detailed Implementation

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] Please see Figure 1 This invention provides a technical solution: a method for preparing a convenient-to-clean magnesium alloy release agent, comprising the following steps:

[0029] S1: Raw material ratio. The raw materials are divided into groups according to their ratio. Take 80g of organosilane composed of silicon and carbon atoms, 20g of synthetic ester made by esterification reaction of acid and alcohol, 15g of polypropylene and 25g of polyethylene as plastic materials, and 90g of deionized water to remove impurities in ionic form.

[0030] S2: Preparing a preliminary mixture involves mixing and stirring solid raw materials according to a specified ratio to form a preliminary mixture, reducing the number of crushing operations by the crushing device, thereby saving the crushing time of the crushing device on the solid raw materials and facilitating subsequent crushing operations;

[0031] S3: Crushing and screening. The initial mixture is crushed using a crushing device, and the crushed initial mixture is screened. The incompletely crushed initial mixture is then fed back into the crushing device for further crushing. The above operation is repeated until the initial mixture is completely screened, so as to better and faster promote the mixing of solid and liquid raw materials and shorten the production time of magnesium alloy release agent.

[0032] S4: Heating and stirring: Add all the preliminary mixture and liquid raw materials except for deionized water into the mixing tank and raise the internal temperature of the mixing tank. During the heating process, continuously stir the preliminary mixture to promote uniform and rapid mixing of solid and liquid raw materials. At this time, the reaction process gradually heats up. At the same time, collect and store the water vapor discharged from the mixing tank to avoid waste of raw materials and loss of the release agent component in the molded magnesium alloy. Stop heating when the temperature of the preliminary mixture reaches 130°C to form a secondary mixture.

[0033] S5: Add liquid raw materials. When the temperature of the secondary mixture drops to 90°C, add deionized water and liquid formed by water vapor collected in S4 according to the prepared mass proportions to maximize the restoration of the proportion of each raw material and avoid imbalance of raw material proportion.

[0034] S6: Secondary stirring. The secondary mixture containing the added liquid raw materials is stirred for 10-20 minutes until the mixture in the mixing tank becomes clear and transparent. Then, stirring is stopped to form the final magnesium alloy release agent required for preparation.

[0035] S7: Secondary screening: The magnesium alloy release agent after secondary stirring is heated and screened to remove internal impurities and avoid any impurities that may have been accidentally contaminated during the operation, thus ensuring the production quality of the magnesium alloy release agent in the future.

[0036] S8: Sampling inspection. Sampling inspection of various indicators inside the magnesium alloy release agent to ensure that the internal components of the prepared magnesium alloy release agent meet the usage rules and achieve the expected production goals.

[0037] S9: Packing: The qualified magnesium alloy release agent is packed into the barrel for storage, and the magnesium alloy release agent is allowed to stand and solidify inside the barrel.

[0038] Working principle: During preparation, organosilane, synthetic ester, polypropylene, polyethylene, and deionized water are proportioned and crushed using a crushing device to form a preliminary mixture of solid raw materials. The crushed preliminary mixture is then sieved until all of it passes through the sieve. The preliminary mixture and all liquid raw materials except for deionized water are then added to a mixing tank for heating and stirring. The generated water vapor is collected. Heating is stopped once the temperature in the mixing tank reaches 130°C, forming a secondary mixture. When the temperature of the secondary mixture drops to 90°C, deionized water and the liquid formed from the water vapor collected in step S4 are added according to the prepared mass proportions. The mixture is stirred for 10-20 minutes until it becomes clear and transparent. The magnesium alloy release agent in the mixing tank is then heated and sieved, and samples are taken to test various indicators. Once qualified, it is packaged. Content not described in detail in this specification is prior art known to those skilled in the art.

[0039] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for preparing a magnesium alloy release agent that is easy to clean, characterized in that, Includes the following steps: S1. Raw material ratio: The raw materials are allocated in proportion to each group; The raw materials in S1 include organosilane, synthetic ester, polypropylene, polyethylene and deionized water, and the raw material composition is: 80g organosilane, 20g synthetic ester, 15g polypropylene, 25g polyethylene and 90g deionized water. S2. Preparation of preliminary mixture: Mix and stir the solid raw materials according to the proportion to form a preliminary mixture; S3. Crushing and Screening: The initial mixture is crushed using a crushing device, and then screened after crushing. S4. Heating and mixing: Put all the preliminary mixture and liquid raw materials except for deionized water into the mixing tank, and raise the internal temperature of the mixing tank. During the heating process, the materials are continuously stirred. In step S4, the material is gradually heated, and at the same time, the water vapor discharged from the mixing tank is collected and stored. After the temperature of the mixture in step S4 rises to 130°C, heating is stopped, and a secondary mixture is formed. S5. Add liquid material: When the temperature of the secondary mixture drops to 90℃, add liquid material; The liquid material in S5 includes the deionized water from step S1 and the liquid formed from the water vapor collected in S4; S6. Secondary mixing: The secondary mixture containing the added liquid material is mixed a second time. S7. Secondary screening: The magnesium alloy release agent after secondary stirring is heated and sieved to remove internal impurities. S8. Sampling and testing: Sampling and testing various indicators inside the magnesium alloy release agent; S9. Packing: Pack the qualified magnesium alloy release agent into the barrel and let it stand to form.

2. The method for preparing a convenient-to-clean magnesium alloy release agent according to claim 1, characterized in that: In step S3, the partially crushed preliminary mixture is fed back into the crushing device for further crushing, and the above operation is repeated until the preliminary mixture is completely sieved.

3. The method for preparing a convenient-to-clean magnesium alloy release agent according to claim 1, characterized in that: The secondary stirring time in S6 is 10-20 minutes.

4. The method for preparing a convenient-to-clean magnesium alloy release agent according to claim 3, characterized in that: In step S6, stirring is stopped once the mixture in the mixing tank becomes clear and transparent.

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