CN112852044A - Blow molding formula of oil tank and manufacturing process thereof - Google Patents
Blow molding formula of oil tank and manufacturing process thereof Download PDFInfo
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- CN112852044A CN112852044A CN202110150728.2A CN202110150728A CN112852044A CN 112852044 A CN112852044 A CN 112852044A CN 202110150728 A CN202110150728 A CN 202110150728A CN 112852044 A CN112852044 A CN 112852044A
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- silicon dioxide
- stabilizer
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- 238000000071 blow moulding Methods 0.000 title claims abstract description 38
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 10
- 239000003921 oil Substances 0.000 claims abstract description 51
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 50
- 235000019738 Limestone Nutrition 0.000 claims abstract description 28
- 239000006028 limestone Substances 0.000 claims abstract description 28
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 25
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 25
- 239000003365 glass fiber Substances 0.000 claims abstract description 21
- 239000002994 raw material Substances 0.000 claims abstract description 20
- 239000003381 stabilizer Substances 0.000 claims abstract description 20
- 229920013716 polyethylene resin Polymers 0.000 claims abstract description 19
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 18
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 18
- 238000003756 stirring Methods 0.000 claims abstract description 15
- 239000000843 powder Substances 0.000 claims abstract description 14
- 239000002244 precipitate Substances 0.000 claims abstract description 13
- 230000002745 absorbent Effects 0.000 claims abstract description 10
- 239000002250 absorbent Substances 0.000 claims abstract description 10
- 238000001354 calcination Methods 0.000 claims abstract description 7
- 238000001035 drying Methods 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 235000021355 Stearic acid Nutrition 0.000 claims abstract description 4
- 238000001816 cooling Methods 0.000 claims abstract description 4
- 238000001914 filtration Methods 0.000 claims abstract description 4
- 239000008187 granular material Substances 0.000 claims abstract description 4
- 238000000227 grinding Methods 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims abstract description 4
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims abstract description 4
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000008117 stearic acid Substances 0.000 claims abstract description 4
- 238000002844 melting Methods 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 9
- 239000006097 ultraviolet radiation absorber Substances 0.000 claims description 8
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 7
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 7
- 239000004571 lime Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 239000002828 fuel tank Substances 0.000 claims description 6
- 230000008018 melting Effects 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 238000009472 formulation Methods 0.000 claims 3
- 229920003023 plastic Polymers 0.000 abstract description 10
- 239000004033 plastic Substances 0.000 abstract description 10
- 238000005452 bending Methods 0.000 description 15
- 239000007787 solid Substances 0.000 description 15
- 238000012360 testing method Methods 0.000 description 7
- 101100399296 Mus musculus Lime1 gene Proteins 0.000 description 5
- 229920001971 elastomer Polymers 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- QUAMTGJKVDWJEQ-UHFFFAOYSA-N octabenzone Chemical compound OC1=CC(OCCCCCCCC)=CC=C1C(=O)C1=CC=CC=C1 QUAMTGJKVDWJEQ-UHFFFAOYSA-N 0.000 description 2
- ASJAQTIRTOPILI-UHFFFAOYSA-N 3-phenylprop-2-enoyl 3-[3-oxo-3-(3-phenylprop-2-enoyloxy)propyl]sulfanylpropanoate Chemical compound S(CCC(=O)OC(C=CC1=CC=CC=C1)=O)CCC(=O)OC(C=CC1=CC=CC=C1)=O ASJAQTIRTOPILI-UHFFFAOYSA-N 0.000 description 1
- CIZOAMKABVZKNK-UHFFFAOYSA-N S(CCC(=O)OC(CCCCCCCCCCCCCCCCC)=O)CCC(=O)OC(CCCCCCCCCCCCCCCCC)=O Chemical compound S(CCC(=O)OC(CCCCCCCCCCCCCCCCC)=O)CCC(=O)OC(CCCCCCCCCCCCCCCCC)=O CIZOAMKABVZKNK-UHFFFAOYSA-N 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002530 phenolic antioxidant Substances 0.000 description 1
- 239000011418 poor lime Substances 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/14—Glass
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to the field of oil tank manufacturing, in particular to a blow molding formula of an oil tank, which comprises the following raw materials in parts by weight: 90-100 parts of polyethylene resin, 1-5 parts of stabilizer, 0.6-1 part of antioxidant, 0.5-1 part of ultraviolet absorbent, 20-30 parts of limestone, 1-2 parts of short glass fiber and 10-20 parts of silicon dioxide; calcining limestone at 800-1000 ℃, introducing water and CO2, stirring, standing for a period of time to enable precipitates to appear at the bottom of liquid, filtering out the precipitates, drying and grinding the precipitates to obtain powder, then uniformly stirring the powder and stearic acid at 130 ℃, adding polyethylene resin, a stabilizer, an antioxidant, an ultraviolet absorbent and short glass fibers, uniformly stirring, cooling, granulating, sending the granules into a blow molding machine, and performing blow molding to obtain the oil tank. According to the invention, the toughness of the oil drum can be effectively increased through the added limestone, the hardness and rigidity of the oil drum are improved, and the impact strength of the oil drum plastic can be improved through the added short glass fiber.
Description
Technical Field
The invention relates to the field of oil tank manufacturing, in particular to a blow molding formula of an oil tank and a manufacturing process thereof.
Background
The traditional metal oil tank has the defects of high price, heavy weight, high welding difficulty, easy deformation in collision and the like, so that the popularization and development of the metal oil tank are limited, and the oil tank is gradually changed from a metal material to a plastic material.
At present, plastic fuel tanks are basically molded by blow molding, and traditionally, in order to increase the toughness of the plastic fuel tanks, the purpose of toughening and modifying is achieved by a method of adding rubber or elastomer, but because the rubber is relatively flexible and the heat resistance is relatively low, the heat resistance of the plastic fuel tanks is easily influenced.
Disclosure of Invention
The invention provides a blow molding formula of an oil tank and a manufacturing process thereof, which aim to solve the problem that the heat resistance of the plastic oil tank is easily influenced by increasing the toughness of the plastic oil tank through rubber in the prior art.
The invention adopts the following technical scheme: a blow molding formula of an oil tank and a manufacturing process thereof comprise the following raw materials in parts by weight: 90-100 parts of polyethylene resin, 1-5 parts of stabilizer, 0.6-1 part of antioxidant, 0.5-1 part of ultraviolet absorbent, 20-30 parts of limestone, 1-2 parts of short glass fiber and 10-20 parts of silicon dioxide.
As a further improvement, the polyethylene resin comprises 90 parts of polyethylene resin, 1 part of stabilizer, 0.6 part of antioxidant, 0.5 part of ultraviolet absorber, 20 parts of limestone, 1 part of short glass fiber and 10 parts of silicon dioxide.
As a further improvement, 95 parts of polyethylene resin, 2.5 parts of stabilizer, 0.8 part of antioxidant, 0.8 part of ultraviolet absorber, 25 parts of limestone, 2 parts of short glass fiber and 15 parts of silicon dioxide.
As a further improvement, 100 parts of polyethylene resin, 5 parts of stabilizer, 1 part of antioxidant, 1 part of ultraviolet absorber, 30 parts of limestone, 2 parts of short glass fiber and 20 parts of silicon dioxide.
A blow molding manufacturing process of an oil tank is characterized in that: the method comprises the following steps:
firstly, preparing raw materials, preparing limestone, calcining the limestone at 800-1000 ℃, introducing water and CO2, stirring, standing for a period of time to enable precipitates to appear at the bottom of liquid, filtering out the precipitates, drying and grinding the precipitates to obtain powder with the average particle size of 0.1-1 mu m, and uniformly stirring the powder and stearic acid at 130 ℃ to obtain lime powder;
preparing silicon dioxide, namely drying the silicon dioxide in an oven at the temperature of 80-100 ℃;
secondly, mixing and granulating raw materials, namely adding dried silicon dioxide, polyethylene resin, a stabilizer, an antioxidant, an ultraviolet absorbent and short glass fibers into lime powder, uniformly stirring and mixing at the stirring speed of 600 plus 700rpm to form an oil drum blow molding raw material, pouring the oil drum blow molding raw material into a granulator, melting, plasticizing and extruding the oil drum blow molding raw material by the granulator, and cutting and granulating by a granulator to obtain granules;
and thirdly, oil drum blow molding, namely feeding the material particles obtained in the second step into a hollow blow molding machine, and carrying out hot melting, extrusion, blow molding and cooling molding on the material particles by the blow molding machine to obtain the oil tank.
As a further improvement, the standing time is 0.5-1 hour.
From the above description of the structure of the present invention, compared with the prior art, the present invention has the following advantages: according to the invention, the limestone, the short glass fiber and the silicon dioxide are added into the plastic raw material, the toughness of the oil drum can be effectively increased through the added limestone and silicon dioxide, meanwhile, the heat resistance of the oil drum can be effectively improved through the added limestone, and the impact strength of the oil drum plastic can be improved through the added short glass fiber.
Detailed Description
The invention is further illustrated by reference to the following examples.
In the first embodiment, the polyethylene resin comprises 90 parts of polyethylene resin, 1 part of stabilizer, 0.6 part of antioxidant, 0.5 part of ultraviolet absorber, 20 parts of limestone, 1 part of short glass fiber and 10 parts of silicon dioxide.
Example two, 95 parts of polyethylene resin, 2.5 parts of stabilizer, 0.8 part of antioxidant, 0.8 part of ultraviolet absorber, 25 parts of limestone, 2 parts of short glass fiber and 15 parts of silicon dioxide.
In the third embodiment, 100 parts of polyethylene resin, 5 parts of stabilizer, 1 part of antioxidant, 1 part of ultraviolet absorber, 30 parts of limestone, 2 parts of short glass fiber and 20 parts of silicon dioxide.
The blow molding manufacturing process of the fuel tank in the first to third embodiments comprises the following steps:
firstly, preparing raw materials, preparing limestone, calcining the limestone at 800-1000 ℃, if the calcining temperature is lower than 800 ℃, the calcining effect of the limestone is insufficient, if the calcining temperature exceeds 1000 ℃, the problems of overburning, quick increase of lime crystal grains and poor lime activity are easy to occur, then introducing water and CO2, stirring, standing for 0.5-1 hour to enable precipitates to appear at the bottom of liquid, filtering out the precipitates, drying the precipitates in a dryer until the water content is less than 0.4%, grinding the precipitates by a ball mill to obtain powder with the average particle size of 0.1-1 mu m, and then uniformly stirring the powder and stearic acid at 130 ℃ to obtain lime powder;
preparing silicon dioxide, namely drying the silicon dioxide in an oven at the temperature of 80-100 ℃;
secondly, mixing and granulating raw materials, namely adding dried silicon dioxide, polyethylene resin, a stabilizer, an antioxidant, an ultraviolet absorbent and short glass fibers into lime powder, uniformly stirring and mixing at the stirring speed of 600 plus 700rpm to form an oil drum blow molding raw material, pouring the oil drum blow molding raw material into a granulator, melting, plasticizing and extruding the oil drum blow molding raw material by the granulator, and cutting and granulating by a granulator to obtain granules; wherein the stabilizer can be a mixture of rare earth stabilizer and auxiliary stabilizer, the antioxidant can be one or more of phenolic antioxidant, bis-cinnamoyl thiodipropionate and bis-stearoyl thiodipropionate, and the ultraviolet absorbent can be 2-hydroxy-4-n-octoxy benzophenone.
And thirdly, oil drum blow molding, namely feeding the material particles obtained in the second step into a hollow blow molding machine, and carrying out hot melting, extrusion, blow molding and cooling molding on the material particles by the blow molding machine to obtain the oil tank.
After the limestone and the silicon dioxide are added, the hardness and the rigidity of the oil tank can be improved due to the large hardness and the good thermal stability of the limestone, the mechanical property is enhanced, the tensile strength and the bending strength can be improved, the manufactured oil tank has toughness, the thermal expansion coefficient and the shrinkage rate are reduced, the effect of reducing the impact strength generated by adding the limestone into plastic can be overcome by the added short glass fiber, and the oil tank can keep strong impact strength.
Heat resistance and bending Property test experiment
The method comprises the following steps of (1) testing heat resistance, respectively carrying out heat resistance tests on oil drums (comparison groups) with the same thickness in the prior art and oil drums in the first to third embodiments of the invention, specifically, respectively heating the oil drums in the prior art and the oil drums in the first to third embodiments to different temperatures, observing the states (solid state, slightly molten state, moderate molten state and molten state) of the oil drums, and judging the heat resistance of the oil drums according to the states of the oil drums at the different temperatures, wherein the oil drums in the prior art are composed of the following raw materials in parts by weight: 90 parts of polyethylene resin, 2 parts of stabilizer, 1 part of antioxidant, 0.5 part of ultraviolet absorber and 5 parts of rubber, wherein the specific experimental results are shown in the following table;
| temperature, C | Example one | Example two | EXAMPLE III | Comparison group |
| 1-50 | In the solid state | In the solid state | In the solid state | In the solid state |
| 51-100 | In the solid state | In the solid state | In the solid state | In the solid state |
| 101-150 | In the solid state | In the solid state | In the solid state | Micro-molten state |
| 151-200 | Micro-molten state | In the solid state | In the solid state | Moderate molten state |
| 201-250 | Moderate molten state | In the solid state | Micro-molten state | In the molten state |
| 251-300 | In the molten state | Micro-molten state | Moderate molten state | In the molten state |
From the above table, the micro-melting state occurs at the temperature of 151-200 ℃, the micro-melting state occurs at the temperature of 251-300 ℃, the micro-melting state occurs at the temperature of 201-250 ℃, and the micro-melting state occurs at the temperature of 101-150 ℃ in the comparison group; that is, the heat resistance of examples one to three was better than that of the comparative group, with the heat resistance of example two being the best;
bending strength test, namely taking oil drums (comparison groups) with the same thickness in the prior art and oil drums in the third embodiment of the invention to perform bending strength test, specifically, extruding the oil drums in the prior art and the first to third embodiments in the same stress area, and observing the pressure used when the oil drums are extruded and deformed to be highly bent, wherein the specific experimental results are shown in the following table;
| pressure, MPa | Example one | Example two | EXAMPLE III | Comparison group |
| 1-10 | Not broken | Not broken | Not broken | Not broken |
| 11-20 | Not broken | Not broken | Not broken | Not broken |
| 21-30 | Microbend | Microbend | Microbend | Microbend |
| 31-40 | Moderate bend | Microbend | Microbend | Moderate bend |
| 41-50 | High degree of bending | Moderate bend | Moderate bend | High degree of bending |
| 51-60 | Fracture of | High degree of bending | High degree of bending | Fracture of |
As can be seen from the above table, the experiment shows that the pressure of the high bending of the example I is 41-50MPa, the pressure of the high bending of the example II is 51-60MPa, the pressure of the high bending of the example III is 51-60MPa, and the pressure of the high bending of the comparison group is 41-50 MPa; that is, the strength properties of examples one to three are not much different from the bending strength properties of the comparative group, with the bending strength property of example two being the best;
according to the heat resistance test and the bending strength test, the added limestone, short glass fiber and silicon dioxide can effectively ensure the toughness of the oil drum and can also effectively improve the heat resistance.
The above description is only an embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modifications made by using the design concept should fall within the scope of infringing the present invention.
Claims (6)
1. A blow molding formula of a fuel tank is characterized in that: the feed comprises the following raw materials in parts by weight: 90-100 parts of polyethylene resin, 1-5 parts of stabilizer, 0.6-1 part of antioxidant, 0.5-1 part of ultraviolet absorbent, 20-30 parts of limestone, 1-2 parts of short glass fiber and 10-20 parts of silicon dioxide.
2. A tank blow molding formulation as claimed in claim 1, wherein: 90 parts of polyethylene resin, 1 part of stabilizer, 0.6 part of antioxidant, 0.5 part of ultraviolet absorbent, 20 parts of limestone, 1 part of short glass fiber and 10 parts of silicon dioxide.
3. A tank blow molding formulation as claimed in claim 1, wherein: 95 parts of polyethylene resin, 2.5 parts of stabilizer, 0.8 part of antioxidant, 0.8 part of ultraviolet absorber, 25 parts of limestone, 2 parts of short glass fiber and 15 parts of silicon dioxide.
4. A tank blow molding formulation as claimed in claim 1, wherein: 100 parts of polyethylene resin, 5 parts of stabilizer, 1 part of antioxidant, 1 part of ultraviolet absorbent, 30 parts of limestone, 2 parts of short glass fiber and 20 parts of silicon dioxide.
5. A tank blow molding process according to any one of claims 1 to 4, wherein: the method comprises the following steps: firstly, preparing raw materials, preparing limestone, calcining the limestone at 800-1000 ℃, introducing water and CO2, stirring, standing for a period of time to enable precipitates to appear at the bottom of liquid, filtering out the precipitates, drying and grinding the precipitates to obtain powder with the average particle size of 0.1-1 mu m, and uniformly stirring the powder and stearic acid at 130 ℃ to obtain lime powder; preparing silicon dioxide, namely drying the silicon dioxide in an oven at the temperature of 80-100 ℃; secondly, mixing and granulating raw materials, namely adding dried silicon dioxide, polyethylene resin, a stabilizer, an antioxidant, an ultraviolet absorbent and short glass fibers into lime powder, uniformly stirring and mixing at the stirring speed of 600 plus 700rpm to form an oil drum blow molding raw material, pouring the oil drum blow molding raw material into a granulator, melting, plasticizing and extruding the oil drum blow molding raw material by the granulator, and cutting and granulating by a granulator to obtain granules; and thirdly, oil drum blow molding, namely feeding the material particles obtained in the second step into a hollow blow molding machine, and carrying out hot melting, extrusion, blow molding and cooling molding on the material particles by the blow molding machine to obtain the oil tank.
6. The blow molding formula of the fuel tank and the manufacturing process thereof according to claim 5 are characterized in that: the standing time is 0.5-1 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110150728.2A CN112852044A (en) | 2021-02-04 | 2021-02-04 | Blow molding formula of oil tank and manufacturing process thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110150728.2A CN112852044A (en) | 2021-02-04 | 2021-02-04 | Blow molding formula of oil tank and manufacturing process thereof |
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| Publication Number | Publication Date |
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| CN112852044A true CN112852044A (en) | 2021-05-28 |
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| CN202110150728.2A Pending CN112852044A (en) | 2021-02-04 | 2021-02-04 | Blow molding formula of oil tank and manufacturing process thereof |
Country Status (1)
| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113372670A (en) * | 2021-06-28 | 2021-09-10 | 江苏惠源新材料股份有限公司 | Method for manufacturing high-hardness plastic oil drum |
| CN116554571A (en) * | 2023-04-27 | 2023-08-08 | 浙江大晋新材料科技有限公司 | High-strength plastic bucket and preparation method thereof |
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| CN113372670A (en) * | 2021-06-28 | 2021-09-10 | 江苏惠源新材料股份有限公司 | Method for manufacturing high-hardness plastic oil drum |
| CN116554571A (en) * | 2023-04-27 | 2023-08-08 | 浙江大晋新材料科技有限公司 | High-strength plastic bucket and preparation method thereof |
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