CN107598077B - Metal forming release agent - Google Patents
Metal forming release agent Download PDFInfo
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- CN107598077B CN107598077B CN201710820814.3A CN201710820814A CN107598077B CN 107598077 B CN107598077 B CN 107598077B CN 201710820814 A CN201710820814 A CN 201710820814A CN 107598077 B CN107598077 B CN 107598077B
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Abstract
A metal forming release agent and a preparation method thereof relate to the technical field of metal forming processing, and are prepared from sodium isophthalate, sodium hydroxide, polyvinyl alcohol, liquid paraffin, stearic acid, vegetable oil, colloidal graphite, zinc dialkyl dithiophosphate, sodium carboxymethyl cellulose, ethyl orthosilicate, silicone grease, polyacrylamide, acrylic acid modified emulsion, papaya glycoside, paclitaxel, curdione, surfactant and the like. The metal forming release agent and the preparation method thereof have enough adsorption strength on the metal surface at high temperature, can form a complete and uniform lubricating film in the metal deformation process, and have low friction coefficient. High-temperature wettability and lubricating property are good, separation and demolding capacity is strong, and the mold has excellent demolding effect on various die-casting molds. The paint has no chemical reaction on a forming die, has no corrosivity, and does not influence the subsequent painting, electroplating and other procedures of the product. The preparation process is simple and convenient, the manufacturing cost is low, and the automatic production is facilitated.
Description
Technical Field
The invention relates to the technical field of metal forming processing, in particular to a metal forming release agent and a preparation method thereof.
Background
The release agent is an interfacial coating applied to the surfaces of two objects that are easily adhered to each other, which allows the surfaces of the objects to be easily released, smooth and clean. The metal die-casting mold release agent is mainly used for various die-pressing operations of metal materials such as aluminum alloy, magnesium alloy, zinc alloy and the like. In molding, sometimes other additives are exuded to the interface, and a surface-removing agent is required to remove it. In theory, the metal die casting release agent should have a large tensile strength so that it is not easily burnished when in frequent contact with the molding resin. This is particularly true when the resin has a ground mineral filler or glass fiber reinforcement. Metal die casting release agents should be chemically resistant so as not to dissolve when in contact with the chemical components of different resins, in particular styrene and amines. The metal die casting release agent also has heat resistance and stress resistance, and is not easy to decompose or wear; the metal die casting release agent should adhere to the mold without transferring to the part being machined so as not to interfere with painting or other secondary machining operations.
Chinese patent application CN 104164293A discloses a green environment-friendly water-based mold release agent, which is prepared from paraffin, stearic acid, vegetable oil, a co-emulsifier, potassium hydroxide, ethylparaben and deionized water. The lubricating function can be achieved at high temperature, meanwhile, the scouring effect of metal liquid on the surface of the cavity can be avoided, the working condition of the die can be improved, the die sticking can be prevented, the heat conductivity and the die temperature of the die are reduced, the temperature of each part of the die is adjusted to be relatively stable, the formability is improved, the formed film can reduce the friction and the abrasion between a casting and the die cavity, particularly between cores of the die, and the service life of the die is prolonged.
Chinese patent application CN 104209453 a discloses a casting mold release agent, which is prepared from liquid paraffin, colloidal graphite, poly α -olefin, polyvinyl ether, zinc dialkyl dithiophosphate, methyl silicone oil ester, wear-resistant additive, dimethylformamide, ethylene glycol, castor oil, surfactant and talc.
Chinese patent application CN 105886092A discloses a graphite mold release agent for metal forging and a preparation method thereof, which comprises sodium carboxymethylcellulose, undecyl alcohol polyoxyethylene ether monophosphate, ethyl orthosilicate, potassium silicate, crystalline flake graphite, earthy graphite and water. The graphite release agent prepared by mixing the flake graphite and the granular earthy graphite and then mutually matching with sodium carboxymethyl cellulose, undecyl polyoxyethylene ether monophosphate, tetraethoxysilane and potassium silicate has better lubricating and releasing properties.
Chinese patent application CN 105969487 a discloses a compound mold release agent, which comprises sodium hydroxide, coal tar, silicone grease, sodium aliphatate, paraffin, polyacrylamide, and boric acid. After the release agent is used, the release agent is easy to release, the labor intensity is improved, the pollution is avoided, the brightness of the product is high, the yield is improved, and the cost is reduced.
However, the above release agent products have more or less following defects through practical verification:
1) the friction coefficient is high, and a complete and uniform lubricating film cannot be formed in the metal deformation process.
2) The lubricating property is poor, the separation and demoulding capacity is poor, the high-temperature adhesiveness is poor, certain corrosivity is realized, and permanent damage is easily caused to a mould.
3) The components contain components harmful or toxic to human bodies, are not environment-friendly and cannot meet the requirements of environmental protection standards.
Disclosure of Invention
The invention aims to provide a metal forming release agent and a preparation method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
a metal forming release agent is prepared from the following components in parts by weight:
preferably, the metal forming mold release agent of the present invention is prepared from the following components in parts by weight:
still more preferably, the metal forming mold release agent of the present invention is made from the following components in parts by weight:
a preparation method of a metal forming release agent comprises the following steps:
(1) adding 30 parts of deionized water into a preparation tank, then sequentially adding sodium isophthalate, polyvinyl alcohol, liquid paraffin, stearic acid, vegetable oil, colloidal graphite, zinc dialkyl dithiophosphate, sodium carboxymethylcellulose, ethyl orthosilicate, silicone grease, polyacrylamide and acrylic acid modified emulsion in a manner of stirring for 5 minutes every time 1 material is added, heating to 55 ℃ after all materials are added, and stirring and mixing for 3 hours;
(2) cooling to room temperature, then sequentially adding the papaya glycoside, the paclitaxel and the curdione in a stirring manner for 10 minutes according to the addition of 1 material, heating to 60 ℃ after the addition of all the materials, and stirring and mixing for 1 hour;
(3) cooling to room temperature, adding the surfactant, the emulsifier and the defoaming agent together, and stirring and mixing for 0.5 hour;
(4) adding the rest deionized water, stirring and mixing, and finally adjusting the pH value of the reaction system to 8-10 by using sodium hydroxide.
The metal forming release agent and the preparation method thereof have the beneficial effects that:
1) has good lubricating and demoulding performance
Has enough adsorption strength to the metal surface at high temperature, can form a complete and uniform lubricating film in the metal deformation process, and has lower friction coefficient.
2) Has good cooling property and heat insulation property
High-temperature wettability and lubricating property are good, separation and demolding capacity is strong, and the mold has excellent demolding effect on various die-casting molds.
3) Has good safety
The paint has no chemical reaction on a forming die, has no corrosivity, and does not influence the subsequent painting, electroplating and other procedures of the product.
4) The preparation method has good economical efficiency
The preparation process is simple and convenient, the manufacturing cost is low, and the automatic production is facilitated.
Detailed Description
The present invention will be described in more detail with reference to the following examples. However, the embodiments are merely illustrative and explanatory of the present invention, and those skilled in the art will be able to make various modifications, additions and substitutions to the embodiments described, without departing from the spirit of the invention or exceeding the scope defined by the claims.
Example 1
Metal forming mold release agent component: 17.5 parts of sodium isophthalate, 2 parts of sodium hydroxide, 1.4 parts of polyvinyl alcohol, 3.5 parts of liquid paraffin, 4.5 parts of stearic acid, 1.8 parts of vegetable oil, 4 parts of colloidal graphite, 1.6 parts of zinc dialkyl dithiophosphate, 1.2 parts of sodium carboxymethylcellulose, 1.7 parts of ethyl orthosilicate, 1 part of silicone grease, 1.65 parts of polyacrylamide, 2.1 parts of acrylic modified emulsion, 0.63 part of papaya glycoside, 0.38 part of paclitaxel, 0.75 part of curdione, 2.2 parts of surfactant, 2.8 parts of emulsifier, 0.65 part of defoamer and the balance of deionized water to 100 parts.
The preparation method of the metal forming release agent comprises the following steps:
(1) adding 30 parts of deionized water into a preparation tank, then sequentially adding sodium isophthalate, polyvinyl alcohol, liquid paraffin, stearic acid, vegetable oil, colloidal graphite, zinc dialkyl dithiophosphate, sodium carboxymethylcellulose, ethyl orthosilicate, silicone grease, polyacrylamide and acrylic acid modified emulsion in a manner of stirring for 5 minutes every time 1 material is added, heating to 55 ℃ after all materials are added, and stirring and mixing for 3 hours;
(2) cooling to room temperature, then sequentially adding the papaya glycoside, the paclitaxel and the curdione in a stirring manner for 10 minutes according to the addition of 1 material, heating to 60 ℃ after the addition of all the materials, and stirring and mixing for 1 hour;
(3) cooling to room temperature, adding the surfactant, the emulsifier and the defoaming agent together, and stirring and mixing for 0.5 hour;
(4) adding the rest deionized water, stirring and mixing, and finally adjusting the pH value of the reaction system to 9 by using sodium hydroxide.
Example 2
Metal forming mold release agent component: 15 parts of m-phthalic acid sodium salt, 3 parts of sodium hydroxide, 1 part of polyvinyl alcohol, 5 parts of liquid paraffin, 3 parts of stearic acid, 3 parts of vegetable oil, 2 parts of colloidal graphite, 3 parts of zinc dialkyl dithiophosphate, 0.5 part of sodium carboxymethyl cellulose, 2.5 parts of ethyl orthosilicate, 0.5 part of silicone grease, 2 parts of polyacrylamide, 1.5 parts of acrylic acid modified emulsion, 0.8 part of papaya glycoside, 0.2 part of paclitaxel, 1 part of curdione, 1 part of surfactant, 4 parts of emulsifier, 0.5 part of defoamer and the balance of deionized water to 100 parts.
The preparation method is the same as example 1.
Example 3
Metal forming mold release agent component: 20 parts of m-phthalic acid sodium salt, 1 part of sodium hydroxide, 2 parts of polyvinyl alcohol, 2 parts of liquid paraffin, 6 parts of stearic acid, 1 part of vegetable oil, 5 parts of colloidal graphite, 1 part of zinc dialkyl dithiophosphate, 1.5 parts of sodium carboxymethyl cellulose, 1 part of ethyl orthosilicate, 1.5 parts of silicone grease, 1 part of polyacrylamide, 2.5 parts of acrylic acid modified emulsion, 0.5 part of papaya glycoside, 0.5 part of paclitaxel, 0.5 part of curdione, 3 parts of surfactant, 1 part of emulsifier, 1.5 parts of defoamer and the balance of deionized water to 100 parts.
The preparation method is the same as example 1.
Example 4
Metal forming mold release agent component: 18.5 parts of m-phthalic acid sodium salt, 1.5 parts of sodium hydroxide, 1.6 parts of polyvinyl alcohol, 3 parts of liquid paraffin, 5 parts of stearic acid, 1.5 parts of vegetable oil, 4.5 parts of colloidal graphite, 1.5 parts of zinc dialkyl dithiophosphate, 1.3 parts of sodium carboxymethylcellulose, 1.5 parts of ethyl orthosilicate, 1.1 parts of silicone grease, 1.5 parts of polyacrylamide, 2.2 parts of acrylic acid modified emulsion, 0.6 part of papaya glycoside, 0.4 part of paclitaxel, 0.6 part of curdione, 2.5 parts of surfactant, 2 parts of emulsifier, 0.8 part of defoamer and the balance of deionized water to 100 parts.
The preparation method is the same as example 1.
Example 5
Metal forming mold release agent component: 16.5 parts of sodium isophthalate, 2.5 parts of sodium hydroxide, 1.2 parts of polyvinyl alcohol, 4 parts of liquid paraffin, 4 parts of stearic acid, 2 parts of vegetable oil, 3 parts of colloidal graphite, 2 parts of zinc dialkyl dithiophosphate, 1 part of sodium carboxymethyl cellulose, 2 parts of ethyl orthosilicate, 0.8 part of silicone grease, 1.8 parts of polyacrylamide, 1.8 parts of acrylic acid modified emulsion, 0.7 part of papaya glycoside, 0.3 part of paclitaxel, 0.8 part of curdione, 1.5 parts of surfactant, 3.5 parts of emulsifier, 0.6 part of defoaming agent and the balance of deionized water to 100 parts.
The preparation method is the same as example 1.
Example 6
Performance preparation determination and comparative testing
(1) High temperature adhesion property
The adhesion properties at different temperatures were measured using Q-235 test pieces as test subjects, and using examples 1 to 5 and a comparative product (WT520 copper die casting release agent, commercially available), and the specific results are shown in Table 1.
TABLE 1 measurement of high-temperature adhesion of mold release agent
| Adhesion amount (g/m)2) | 100℃ | 200℃ | 300℃ | 400℃ | 500 |
| Example 1 | 11.2 | 15.6 | 19.7 | 12.6 | 11.7 |
| Example 2 | 10.7 | 15.9 | 18.3 | 11.9 | 11.2 |
| Example 3 | 10.3 | 16.0 | 18.9 | 11.5 | 10.8 |
| Example 4 | 9.8 | 15.2 | 17.8 | 12.0 | 10.9 |
| Example 5 | 10.8 | 14.9 | 18.2 | 11.2 | 10.3 |
| Comparison product | 5.5 | 12.3 | 16.8 | 9.5 | 6.8 |
(2) Lubricating property
The lubricating properties (friction coefficient) were measured using SUS-304 as a test piece and examples 1 to 5 and a comparative product (WT520 copper die casting release agent, commercially available) and the specific results are shown in Table 2.
TABLE 2 measurement of lubricating properties
(3) Cooling performance
The adhesion properties at different temperatures were measured using Q-235 test pieces as test subjects, and using examples 1 to 5 and a comparative product (WT520 copper die casting release agent, commercially available), and the specific results are shown in Table 3.
TABLE 3 measurement of Cooling Performance
| Cooling Rate (. degree. C./sec) | 500℃→400℃ | 400℃→300℃ | 300℃→200℃ |
| Example 1 | 55.3 | 40.3 | 22.8 |
| Example 2 | 56.8 | 42.1 | 24.1 |
| Example 3 | 57.5 | 42.8 | 23.9 |
| Example 4 | 56.8 | 42.5 | 23.6 |
| Example 5 | 57.2 | 43.0 | 23.2 |
| Comparison product | 65.5 | 55 | 36 |
The following can be obtained through the test data:
the metal forming release agent has good lubricating and releasing performance, good cooling performance and heat insulation performance and good safety. Has enough adsorption strength to the metal surface at high temperature, can form a complete and uniform lubricating film in the metal deformation process, and has lower friction coefficient. High-temperature wettability and lubricating property are good, separation and demolding capacity is strong, and the mold has excellent demolding effect on various die-casting molds. The paint has no chemical reaction on a forming die, has no corrosivity, and does not influence the subsequent painting, electroplating and other procedures of the product.
Claims (1)
1. The metal forming mold release agent is characterized by being prepared from the following components in parts by weight:
the preparation method comprises the following steps:
(1) adding 30 parts of deionized water into a preparation tank, then sequentially adding sodium isophthalate, polyvinyl alcohol, liquid paraffin, stearic acid, vegetable oil, colloidal graphite, zinc dialkyl dithiophosphate, sodium carboxymethylcellulose, ethyl orthosilicate, silicone grease, polyacrylamide and acrylic acid modified emulsion in a manner of stirring for 5 minutes every time 1 material is added, heating to 55 ℃ after all materials are added, and stirring and mixing for 3 hours;
(2) cooling to room temperature, then sequentially adding the papaya glycoside, the paclitaxel and the curdione in a stirring manner for 10 minutes according to the addition of 1 material, heating to 60 ℃ after the addition of all the materials, and stirring and mixing for 1 hour;
(3) cooling to room temperature, adding the surfactant, the emulsifier and the defoaming agent together, and stirring and mixing for 0.5 hour;
(4) adding the rest deionized water, stirring and mixing, and finally adjusting the pH value of the reaction system to 8-10 by using sodium hydroxide.
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| CN201710820814.3A CN107598077B (en) | 2017-09-13 | 2017-09-13 | Metal forming release agent |
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| CN201710820814.3A CN107598077B (en) | 2017-09-13 | 2017-09-13 | Metal forming release agent |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108326228B (en) * | 2018-02-07 | 2019-11-29 | 广州采润新材料有限公司 | Aqueous release agent and preparation method thereof for anodized aluminum alloy die casting thin pieces |
| CN109663886A (en) * | 2019-02-24 | 2019-04-23 | 湖南七纬科技有限公司 | A kind of die cast metal release agent and preparation method thereof |
| CN109732038B (en) * | 2019-03-04 | 2021-04-06 | 宁波辉宏新材料有限公司 | Die-casting release agent and preparation method thereof |
| CN110153291A (en) * | 2019-07-04 | 2019-08-23 | 合肥学院 | Intelligent precise die device |
| CN113372987B (en) * | 2021-06-10 | 2023-06-23 | 西安思凯石化科技有限公司 | Aluminum alloy forging release agent |
| CN115678653B (en) * | 2022-09-09 | 2023-06-13 | 山东德利森绿能建材科技有限公司 | Environment-friendly degradable fine stone concrete release agent and preparation method thereof |
| CN116590081A (en) * | 2023-04-03 | 2023-08-15 | 中原内配集团安徽有限责任公司 | Release agent for cylinder sleeve production release |
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| CN105969487A (en) * | 2016-07-01 | 2016-09-28 | 陈凌燕 | Compound type releasing agent |
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Patent Citations (6)
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| CN103042169A (en) * | 2013-01-08 | 2013-04-17 | 上海尤希路化学工业有限公司 | High-dilution-rate and environment-friendly release agent for aluminum alloy |
| CN104209453A (en) * | 2014-08-24 | 2014-12-17 | 青岛承天伟业机械制造有限公司 | Casting mould release agent |
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| CN105969487A (en) * | 2016-07-01 | 2016-09-28 | 陈凌燕 | Compound type releasing agent |
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