Water-soluble multi-material press and stretch puff and method of making same

Abstract

The present application relates to the technical field of stretch putty, further relates to a water-soluble multi-material stamping stretch putty and a preparation method thereof. According to mass percentage, the raw materials include vulcanized organic matter 10-20%, non-ionic surfactant 10-18%, synthetic ester 5-15%, transformer oil 5-15%, lubricant 5-12%, organic alcohol amine 4-12%, zinc dialkyldithiophosphate 2-4%, organic acid 0.5-2%, fatty acid polyethylene glycol ether phosphate 0.5-1.5%, iodine propargyl n-butyl carbamic acid ester 0.2-0.7%, and water in remainder. The stretch putty of the present application can be used directly or after dilution, and can protect the integrity of the surface plastic film after use, avoid the possible corrosion of pure oily product to the plastic film or the penetration between the plastic film and the workpiece, and make the subsequent painting and electroplating difficult.

Description

Technical Field

[0001] This invention relates to the field of stretching paste technology, and more specifically to a water-soluble multi-material stamping stretching paste and its preparation method. Background Technology

[0002] During the pressurized stamping and stretching process, the metal undergoes simultaneous deformation and stretching due to the high pressure and speed between the die and the metal. To prevent scratches and abrasions in metal products during this process, it is necessary to use stretching products with lubricating properties. Existing pressurized and stretching products include pure oil-based and water-soluble (paste, water-based emulsion) products.

[0003] For example, Chinese patent CN 01210379244 discloses a stretching emulsion for stainless steel products and its preparation process. The stretching emulsion is in paste form and is composed of paraffin wax, white mineral oil, stearic acid, triethanolamine, additives, and water. The preparation process includes the following steps: a) ingredient mixing, b) melting and stirring, c) adding and stirring, and d) cooling. However, this technical solution lacks data to support its disclosed effects. Summary of the Invention

[0004] The first aspect of this invention provides a water-soluble multi-material stamping and stretching paste, comprising, by weight percentage, 10-20% sulfurized organic matter, 10-18% nonionic surfactant, 5-15% synthetic ester, 5-15% transformer oil, 5-12% lubricant, 4-12% organic alcohol amine, 2-4% zinc dialkyl dithiophosphate, 0.5-2% organic acid, 0.5-1.5% fatty acid polyethylene glycol ether phosphate, 0.2-0.7% iodopropynyl n-butylcarbamate, and water as the balance.

[0005] Preferably, the sulfurized organic substance is selected from at least one of sulfurized olefins, sulfurized fatty acid esters, and polysulfides.

[0006] Preferably, the sulfurized organic substance is a combination of sulfurized olefins and sulfurized fatty acid esters.

[0007] Preferably, the mass ratio of the sulfurized olefin to the sulfurized fatty acid ester is (1-2):(1-2), and more preferably 1:1.

[0008] During their research, the inventors discovered that when the sulfurized organic material is a combination of sulfurized olefins and sulfurized fatty acid esters, and the mass ratio of sulfurized olefins to sulfurized fatty acid esters is controlled at (1-2):(1-2), the maximum non-seize load and sintering load of the stretching paste can be increased simultaneously. The inventors hypothesize that this is because, on the one hand, under these conditions, the sulfurized olefins and sulfurized fatty acid esters can react with the metal during metal stamping and stretching to form a mercaptan iron coating film, achieving an anti-wear effect. When the load increases, the CS bonds can break, generating a sulfurized iron solid film with low shear properties, thus increasing the sintering load. On the other hand, under these conditions, the sulfurized organic material does not compete for adsorption with other raw materials in the system of this application (such as fatty acid polyethylene glycol ether phosphate).

[0009] Preferably, the nonionic surfactant is selected from at least one of fatty alcohol polyoxyethylene ether, Span 80, and castor oil polyoxyethylene ether, and more preferably a combination of fatty alcohol polyoxyethylene ether and Span 80.

[0010] Preferably, the mass ratio of the fatty alcohol polyoxyethylene ether to Span 80 is (5-6):(8.5-9), and more preferably 5.5:8.9.

[0011] Preferably, the synthetic ester is selected from at least one of tetrameric castor oil ester, methyl oleate, 2-ethylhexyl oleate, trioleic acid glyceride, and trimethylolpropane oleate.

[0012] Preferably, the synthetic ester is a combination of trioleic acid glyceride and trimethylolpropane oleate.

[0013] Preferably, the mass ratio of trioleic acid glyceride to trimethylolpropane oleate is (1-2):(1-2), and more preferably 1:1.

[0014] During the research process, the inventors unexpectedly discovered that when the synthetic ester in this application is a combination of trioleic acid glyceride and trimethylolpropane oleate, and when the mass ratio of trioleic acid glyceride to trimethylolpropane oleate is (1-2):(1-2), under the same addition amount, the maximum non-clamping load of the stretching paste can be increased compared to trioleic acid glyceride alone.

[0015] Preferably, the transformer oil is selected from at least one of No. 10 transformer oil and No. 25 transformer oil, and more preferably No. 25 transformer oil.

[0016] Preferably, the lubricant is selected from at least one of oleic acid, ricinoleic acid, and tetrameric ricinoleate, and more preferably a combination of oleic acid and ricinoleic acid.

[0017] Preferably, the mass ratio of oleic acid to ricinoleic acid is (4-6):(4.5-5.5), and more preferably 5:4.9.

[0018] Preferably, the organic alcohol amine is selected from at least one of monoethanolamine, diethanolamine, or triethanolamine, and is preferably triethanolamine.

[0019] Preferably, the organic acid is selected from at least one of dicarboxylic acids and tricarboxylic acids.

[0020] Preferably, the organic acid is a dicarboxylic acid.

[0021] Preferably, the dicarboxylic acid is a long-chain dicarboxylic acid.

[0022] Preferably, the long-chain dicarboxylic acid is selected from at least one of undecanoic dicarboxylic acid, dodecanoic dicarboxylic acid, and tridecanoic dicarboxylic acid.

[0023] Preferably, the long-chain dicarboxylic acid is a dodecanoic acid.

[0024] During the research process, the inventors unexpectedly discovered that when the organic acid in this application is a dicarboxylic acid, especially when the dicarboxylic acid is a long-chain dicarboxylic acid, and the long-chain dicarboxylic acid is a dodecanoic dicarboxylic acid, the resulting stretching paste has better rust prevention performance than a tricarboxylic acid. In addition, generally speaking, organic acids affect the interaction between sulfurized organic substances and metal surfaces, reducing the load-bearing capacity of the stretching paste. However, the technical solution of this application can maintain a high maximum non-seize load and sintering load while improving the rust prevention performance of the stretching paste.

[0025] The second aspect of the present invention provides a method for preparing a water-soluble multi-material stamping and stretching paste, comprising the following steps: mixing the components evenly by mass percentage to obtain the paste.

[0026] Beneficial effects:

[0027] 1. When the sulfurized organic material is a combination of sulfurized olefins and sulfurized fatty acid esters, and the mass ratio of sulfurized olefins to sulfurized fatty acid esters is controlled to be (1-2):(1-2), the maximum non-seize load and sintering load of the stretching paste can be increased simultaneously.

[0028] 2. When the nonionic surfactant of the present invention is a combination of fatty alcohol polyoxyethylene ether and Span 80, and the mass ratio of fatty alcohol polyoxyethylene ether to Span 80 is controlled to be (5-6):(8.5-9), it can not only ensure the long-term stability of the stretching paste, but also improve the lubricity of the stretching paste and have a certain cleaning effect.

[0029] 3. In this invention, when the synthesized ester is a combination of trioleic acid glyceride and trimethylolpropane oleate, and when the mass ratio of trioleic acid glyceride to trimethylolpropane oleate is (1-2):(1-2), under the same addition amount, the maximum non-clamping load of the stretching paste can be increased compared with trioleic acid glyceride alone.

[0030] 4. When the organic acid is a dicarboxylic acid, especially when the dicarboxylic acid is a long-chain dicarboxylic acid, and the long-chain dicarboxylic acid is a dodecanoic dicarboxylic acid, the resulting stretching paste has better rust prevention performance than a tricarboxylic acid. In addition, generally speaking, organic acids will affect the interaction between sulfurized organic substances and metal surfaces, reducing the load-bearing capacity of the stretching paste. However, the technical solution of this application can maintain a high maximum non-seize load and sintering load while improving the rust prevention performance of the stretching paste.

[0031] 5. The stretching paste of the present invention can be used directly or after dilution. After use, it can protect the integrity of the surface plastic film and prevent pure oil products from corroding the plastic film or penetrating between the plastic film and the workpiece, which would make subsequent painting and electroplating difficult.

[0032] 6. The stretching paste of the present invention can be used for stamping and stretching of different metal materials. It can effectively reduce the wear of the mold and the deformation of the workpiece caused by heat during the processing, better protect the mold, improve the surface quality of the workpiece, avoid scratches and scuffs, and improve the yield.

[0033] 7. The stretching paste of the present invention, being a paste-like product, has a higher viscosity after dilution than ordinary water-based products, resulting in better film-forming and adhesion properties. It offers superior lubrication for workpieces with high processing requirements or those requiring multiple passes in a single mold.

[0034] 8. Whether used directly or diluted, the stretching paste of this invention can meet the basic requirements after simple cleaning. It can effectively reduce cleaning steps and improve production efficiency; at the same time, it is environmentally friendly, producing no oil mist or fumes during processing, and will not leave sticky oil stains on the ground, effectively improving the workshop production and processing environment. Attached Figure Description

[0035] Figure 1 Images showing actual application of the stretching paste of Embodiment 1 of the present invention to Customer 1;

[0036] In the diagram: A is the first stretching workpiece; B is the second stretching workpiece; C is the third stretching workpiece; D is the finished product.

[0037] Figure 2 Images showing actual application of the stretching paste of Embodiment 1 of the present invention to Customer 2;

[0038] In the diagram: A is the first stretching workpiece; B is the second stretching workpiece; C is the third stretching workpiece; D is the finished product. Detailed Implementation

[0039] The sulfurized olefins involved in the embodiments of this invention were purchased from Rhein Chemicals, model Additin RC 2540;

[0040] Sulfated fatty acid esters, purchased from Rhein Chemicals, model Additin RC 2317X;

[0041] Fatty acid polyethylene glycol ether phosphate, purchased from Evonik Germany, model AL200;

[0042] Fatty alcohol polyoxyethylene ether, purchased from Dow Chemical, model AEO-9.

[0043] Examples 1 to 5 provide a water-soluble multi-material stamping and stretching paste, the formulation of which is shown in Table 1 by mass percentage:

[0044] Table 1

[0045]

[0046]

[0047] A method for preparing a water-soluble multi-material stamping and stretching paste includes the following steps: mixing the components evenly by weight percentage to obtain the paste.

[0048] Performance testing: Test items and methods are shown in Table 2.

[0049] Table 2

[0050]

Claims

1. A water-soluble multi-material stamping and stretching paste, characterized in that, By mass percentage, the raw materials include 10-20% sulfurized organic matter, 10-18% nonionic surfactant, 5-15% synthetic ester, 5-15% transformer oil, 5-12% lubricant, 4-12% organic alcohol amine, 2-4% zinc dialkyl dithiophosphate, 0.5-2% organic acid, 0.5-1.5% fatty acid polyethylene glycol ether phosphate, 0.2-0.7% iodopropynyl n-butylcarbamate, and water as the balance. The sulfurized organic substance is a combination of sulfurized olefins and sulfurized fatty acid esters, and the mass ratio of the sulfurized olefins to the sulfurized fatty acid esters is (1~2):(1~2). The nonionic surfactant is a combination of fatty alcohol polyoxyethylene ether and Span 80, wherein the mass ratio of fatty alcohol polyoxyethylene ether to Span 80 is (5~6):(8.5~9). The synthetic ester is a combination of trioleic acid glyceride and trimethylolpropane oleate, wherein the mass ratio of trioleic acid glyceride to trimethylolpropane oleate is (1~2):(1~2). The organic acid is a dodecanoic acid; The lubricant is a combination of oleic acid and ricinoleic acid, wherein the mass ratio of oleic acid to ricinoleic acid is (4~6):(4.5~5.5).

2. A method for preparing the water-soluble multi-material stamping and stretching paste according to claim 1, characterized in that, Includes the following steps: The components are mixed evenly according to their mass percentage.

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