Preparation method of magnesium alloy release agent convenient to clean

Abstract

The invention discloses a preparation method of a magnesium alloy release agent convenient to clean. The preparation method comprises the following steps: S1, proportioning raw materials; s2, preparing a primary mixture; s3, crushing and screening; s4, heating, stirring and mixing; s5, adding a liquid raw material; s6, carrying out secondary stirring; s7, screening for the second time; s8, carrying out sampling detection; and S9, barreling. Organosilane, synthetic ester, polypropylene, polyethylene and deionized water are mixed and stirred according to a corresponding ratio to prepare the magnesium alloy release agent which has unique lubricity, high temperature resistance and wear resistance and can meet the requirements of different magnesium alloy semi-solid forming processes, so that the production efficiency is improved, the cost is reduced, and the production cost is reduced. The mold has the advantages of being good in adhesiveness, uniformity, durability and self-cleaning performance, capable of reducing the mold cleaning frequency and remarkably prolonging the service life of the mold, environmentally friendly and capable of saving energy, can be biodegraded and recycled after being used, and facilitates reduction of waste discharge.

Description

Technical Field

[0001] The invention relates to the technical field of magnesium alloy release agent preparation, in particular to a method for preparing a magnesium alloy release agent which is convenient to clean. Background Art

[0002] In metal die-casting, casting and other processes, the release agent will form a film on the contact surface between the mold and the molding, reducing the adhesion and friction between the mold and the molding, making it easy for the finished product to be separated from the mold. This separation film can not only reduce friction, but also protect the mold surface from damage, extend the life of the mold, make the surface of the finished product smoother, and effectively shorten the demolding time of the finished product, thereby improving product production efficiency and reducing the number of mold cleaning times.

[0003] However, the existing release agents are difficult to promote the molding of semi-solid die-casting workpieces during the molding process. They have poor adhesion and no obvious auxiliary effect on the demolding of semi-solid die-casting workpieces. In addition, the semi-solid die-casting workpieces will experience cold material, carbon deposition and cracking. At the same time, it makes it difficult to clean the mold after the semi-solid die-casting workpiece is demolded. For this reason, we propose a method for preparing a magnesium alloy release agent that is easy to clean. Summary of the invention

[0004] The purpose of the present invention is to provide a method for preparing a magnesium alloy release agent that is easy to clean, so as to solve the problem that the existing release agent mentioned in the background art will bring a series of negative effects during the forming process of semi-solid die-casting workpieces and is not practical.

[0005] To achieve the above object, 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 proportioning, proportioning the raw materials in each group;

[0007] S2: preparing a preliminary mixture, mixing and stirring the solid raw materials according to a proportion to form a preliminary mixture;

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

[0009] S4: heating and stirring to mix, putting all the preliminary mixed materials and liquid raw materials except deionized water into the blending tank, and raising the temperature inside the blending tank, and continuously stirring the preliminary mixed materials during the heating process;

[0010] S5: adding liquid raw materials. When the temperature of the secondary mixture drops to 90°C, adding liquid raw materials;

[0011] S6: secondary stirring, secondary stirring of the secondary mixture added with the liquid raw material;

[0012] S7: secondary screening, heating and screening the magnesium alloy release agent after secondary stirring to filter out internal impurities;

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

[0014] S9: Barreling: put the magnesium alloy release agent that has passed the inspection into the barrel and let it stand for molding.

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

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

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

[0018] Preferably, in S3, the incompletely crushed preliminary mixed material is put into the crushing device again for crushing, and the above operation is repeated until the preliminary mixed material is completely sieved.

[0019] Preferably, the temperature of the materials in the S4 reaction process is gradually increased, and at the same time, the water vapor discharged from the blending tank is collected and stored.

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

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

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

[0023] Preferably, after the mixture in the blending tank is stirred in S6 until it becomes clear and transparent, stirring is stopped to form the final magnesium alloy release agent to be prepared.

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

[0025] The present invention prepares a magnesium alloy release agent having unique lubricity, high temperature resistance, wear resistance and the ability to meet the requirements of different magnesium alloy semi-solid forming processes by mixing and stirring organic silane, synthetic ester, polypropylene, polyethylene and deionized water in corresponding proportions, thereby improving production efficiency and reducing costs, and having the advantages of good adhesion, uniformity, durability and self-cleaning, while reducing the number of mold cleaning times and significantly increasing the service life of the mold, having the advantages of environmental protection and energy saving, and being biodegradable and recyclable after use, thereby helping to reduce waste emissions. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 The present invention is a schematic flow chart of a method for preparing a magnesium alloy release agent that is easy to clean. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0028] See also Figure 1 The present invention provides a technical solution: a method for preparing a magnesium alloy release agent that is easy to clean, comprising the following steps:

[0029] S1: Raw material proportioning, proportioning the raw materials in various components, taking 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 which are plastic materials, and 90g of deionized water from which ionic impurities are removed;

[0030] S2: Preparing a preliminary mixture, mixing and stirring the solid raw materials according to the proportion to form a preliminary mixture, reducing the number of crushing times of the crushing device, thereby saving the crushing time of the crushing device for the solid raw materials, and facilitating the subsequent crushing work;

[0031] S3: crushing and screening, using a crushing device to crush the preliminary mixture, and screening the crushed preliminary mixture, and the incompletely crushed preliminary mixture is put into the crushing device again for crushing, and the above operation is repeated until the preliminary mixture is completely screened, so as to facilitate the subsequent better and faster mixing of solid raw materials and liquid raw materials, and shorten the preparation time of magnesium alloy release agent;

[0032] S4: heating and stirring to mix, putting all the preliminary mixture and liquid raw materials except ionized water into a blending tank, and raising the temperature inside the blending tank. During the heating process, the preliminary mixture is continuously stirred to promote uniform and rapid mixing of solid raw materials and liquid raw materials. At this time, the reaction process materials are gradually heated up. At the same time, the water vapor discharged from the blending tank is collected and stored to avoid the waste of raw materials, so that the components of the magnesium alloy release agent after molding are confirmed. After the temperature of the preliminary mixture rises to 130°C, the heating is stopped to form a secondary mixture;

[0033] S5: adding liquid raw materials. When the temperature of the secondary mixture drops to 90° C., adding deionized water in the prepared mass fraction and the liquid formed by the water vapor collected in S4 to restore the proportion of each raw material to the maximum extent and avoid imbalance in the proportion of raw materials;

[0034] S6: secondary stirring, performing secondary stirring on the secondary mixture with the liquid raw material added thereto, the stirring time being 10-20 minutes, until the mixture in the blending tank becomes clear and transparent, then stopping the stirring to form the final magnesium alloy release agent to be prepared;

[0035] S7: Secondary screening, the magnesium alloy release agent after secondary stirring is heated and screened to remove internal impurities, to avoid residual impurities accidentally contaminated during operation, and to ensure the subsequent production quality of the magnesium alloy release agent;

[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: Barreling: the magnesium alloy release agent that has passed the inspection is loaded into the barrel for storage, and the magnesium alloy release agent is statically formed inside the barrel.

[0038] Working principle: During the preparation, the proportions of each component of organic silane, synthetic ester, polypropylene, polyethylene and deionized water are adjusted, and the preliminary mixture composed of solid raw materials is crushed by a crushing device, and the crushed preliminary mixture is screened until all the preliminary mixtures are screened. Then, the preliminary mixture and the liquid raw materials except the deionized water are all put into the blending tank for heating and stirring, and the generated water vapor is collected. After the temperature of the material in the blending tank rises to 130°C, the heating is stopped to form a secondary mixture. When the temperature of the secondary mixture drops to 90°C, deionized water according to the prepared mass fraction and the liquid formed by the water vapor collected in the S4 are added, and stirred for 10-20 minutes until the mixture in the blending tank is clear and transparent. The magnesium alloy release agent in the blending tank is heated and screened, and the various indicators inside the magnesium alloy release agent are sampled and tested. After passing the test, it can be barreled. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0039] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in 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: The steps include: S1: Raw material proportioning, proportioning the raw materials in each group; S2: preparing a preliminary mixture, mixing and stirring the solid raw materials according to a proportion to form a preliminary mixture; S3: crushing and screening, using a crushing device to crush the preliminary mixture, and screening the crushed preliminary mixture; S4: heating and stirring to mix, putting all the preliminary mixed materials and liquid raw materials except deionized water into the blending tank, and raising the temperature inside the blending tank, and continuously stirring the preliminary mixed materials during the heating process; S5: adding liquid raw materials. When the temperature of the secondary mixture drops to 90°C, adding liquid raw materials; S6: secondary stirring, secondary stirring of the secondary mixture added with the liquid raw material; S7: secondary screening, heating and screening the magnesium alloy release agent after secondary stirring to filter out internal impurities; S8: Sampling test: sampling test various indicators inside the magnesium alloy release agent; S9: Barreling: put the magnesium alloy release agent that has passed the inspection into the barrel and let it stand for molding.

2. The method for preparing a magnesium alloy release agent that is easy to clean according to claim 1, characterized in that: The raw materials in S1 include organic silane, synthetic ester, polypropylene, polyethylene and deionized water, and the raw material components are: 80g of organic silane, 20g of synthetic ester, 15g of polypropylene, 25g of polyethylene and 90g of deionized water.

3. The method for preparing a magnesium alloy release agent that is easy to clean according to claim 2, characterized in that: The organic silane is composed of silicon and carbon atoms, and the synthetic ester is prepared by esterification reaction of acid and alcohol.

4. The method for preparing a magnesium alloy release agent that is easy to clean according to claim 2, characterized in that: The polypropylene and polyethylene are both plastic materials, and the deionized water is pure water from which impurities in the form of ions have been removed.

5. The method for preparing a magnesium alloy release agent that is easy to clean according to claim 1, characterized in that: In S3, the incompletely crushed preliminary mixed material is put into the crushing device again for crushing, and the above operation is repeated until the preliminary mixed material is completely sieved.

6. The method for preparing a magnesium alloy release agent that is easy to clean according to claim 1, characterized in that: During the S4 reaction process, the material is gradually heated up, and at the same time, the water vapor discharged from the blending tank is collected and stored.

7. The method for preparing a magnesium alloy release agent that is easy to clean according to claim 6, characterized in that: After the temperature of the preliminary mixture in S4 rises to 130° C., heating is stopped to form a secondary mixture.

8. The method for preparing a magnesium alloy release agent that is easy to clean according to claim 1, characterized in that: The liquid raw material in S5 includes deionized water in prepared mass fractions and liquid formed from the water vapor collected in S4.

9. The method for preparing a magnesium alloy release agent that is easy to clean according to claim 1, characterized in that: The stirring time of the secondary mixture of the liquid raw material added in S6 is 10-20 minutes.

10. The method for preparing a magnesium alloy release agent that is easy to clean according to claim 9, characterized in that: After the mixture in the blending tank is stirred in S6 until it becomes clear and transparent, stirring is stopped to form the final magnesium alloy release agent to be prepared.

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