CN112338091B - Punch forming process of aluminum alloy radiating fin - Google Patents

Punch forming process of aluminum alloy radiating fin Download PDF

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Publication number
CN112338091B
CN112338091B CN202011151806.2A CN202011151806A CN112338091B CN 112338091 B CN112338091 B CN 112338091B CN 202011151806 A CN202011151806 A CN 202011151806A CN 112338091 B CN112338091 B CN 112338091B
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parts
aluminum alloy
oil
forming process
percent
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CN112338091A (en
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李建红
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Taicang Qiaozhou Hardware Technology Co ltd
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Taicang Qiaozhou Hardware Technology Co ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
    • B21D53/04—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of sheet metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/04—Cleaning involving contact with liquid
    • B08B3/08—Cleaning involving contact with liquid the liquid having chemical or dissolving effect
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/20—Deep-drawing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/20—Deep-drawing
    • B21D22/201—Work-pieces; preparation of the work-pieces, e.g. lubricating, coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/16—Heating or cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/18—Lubricating, e.g. lubricating tool and workpiece simultaneously
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
    • C10M169/04—Mixtures of base-materials and additives
    • C10M169/048—Mixtures of base-materials and additives the additives being a mixture of compounds of unknown or incompletely defined constitution, non-macromolecular and macromolecular compounds
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66—Non-ionic compounds
    • C11D1/72—Ethers of polyoxyalkylene glycols
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/04—Water-soluble compounds
    • C11D3/046—Salts
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/18—Hydrocarbons
    • C11D3/184—Hydrocarbons unsaturated
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2075—Carboxylic acids-salts thereof
    • C11D3/2079—Monocarboxylic acids-salts thereof
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2075—Carboxylic acids-salts thereof
    • C11D3/2086—Hydroxy carboxylic acids-salts thereof
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2093—Esters; Carbonates
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/26—Organic compounds containing nitrogen
    • C11D3/30—Amines; Substituted amines ; Quaternized amines
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/26—Organic compounds containing nitrogen
    • C11D3/32—Amides; Substituted amides
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0081—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for slabs; for billets
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C22C21/02—Alloys based on aluminium with silicon as the next major constituent
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
    • C22F1/043—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with silicon as the next major constituent
    • C—CHEMISTRY; METALLURGY
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    • C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
    • C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
    • C10M2205/026—Butene
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    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/02—Hydroxy compounds
    • C10M2207/021—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms
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    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
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    • C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
    • C10M2207/126—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids monocarboxylic
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    • C10M2207/40—Fatty vegetable or animal oils
    • C10M2207/402—Castor oils
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    • C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
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    • C10M2215/04—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
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    • C10M2229/04—Siloxanes with specific structure
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    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Abstract

The invention belongs to the technical field of alloy and manufacturing, and particularly relates to a punch forming process of an aluminum alloy radiating fin. The process comprises the following steps: (S1) pretreatment, (S2) die preheating, (S3) stamping oil coating, (S4) stamping, (S5) cleaning, and (S6) heat treatment. The invention provides the punch forming process of the aluminum alloy radiating fin, which has reasonable steps and simple and convenient operation; according to the invention, through pre-heat treatment, different stamping oil and reasonable cleaning fluid with different properties are prepared according to different stress states and temperatures of two surfaces of the aluminum alloy plate; in addition, the aluminum alloy material and the corresponding differential temperature punch forming process are matched and optimized aiming at the purpose of the radiating fin. The aluminum alloy radiating fin manufactured by the punch forming process provided by the invention has the advantages of fine and smooth surface, no deformation and cracking in a cold and hot alternating environment, no residual punching oil on the surface and high radiating efficiency.

Description

Punch forming process of aluminum alloy radiating fin
Technical Field
The invention belongs to the technical field of alloy and manufacturing, and particularly relates to a punch forming process of an aluminum alloy radiating fin.
Background
Heat sinks are a type of device that dissipates heat from a heat source. In modern society, the application of the radiating fin is very wide, and the radiating fin can be used for heating fins of electronic elements such as a CPU (central processing unit), a power tube, a travelling tube and a power amplifier, and can also be used for daily heating, industrial heat exchange and the like. The aluminum alloy has the advantages of low price, high heat conduction efficiency, moderate hardness, good processing performance and the like, so that the aluminum alloy radiating fin is one of the most widely applied radiating fins. In order to improve the heat dissipation efficiency of the aluminum alloy heat sink, the aluminum alloy plate is usually required to be made into the heat sink with a certain shape and lines through a stamping process. However, if the existing aluminum alloy stamping process is directly applied to manufacturing the aluminum alloy cooling fin, a plurality of practical contradictions can occur. For example, how to design a reasonable stamping process ensures that the aluminum alloy radiating fin has good mechanical properties after being formed, does not deform and crack after being used in a cold and hot environment for a long time; in addition, the use of the stamping oil is favorable for meeting the requirements of products and surface precision and protecting equipment, but the conventional stamping oil can form oil films on the surfaces of the aluminum alloy and in surface layer pores under the action of high temperature, and can not be completely removed, so that the heat dissipation performance is reduced.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a punch forming process of an aluminum alloy radiating fin.
In order to achieve the purpose, the invention is realized by the following technical scheme: a punch forming process of an aluminum alloy radiating fin comprises the following steps:
(S1) preprocessing: heating the aluminum alloy plate to 465-480 ℃, preserving heat for more than 75min, and then cooling to 52-55 ℃; the heating rate is controlled within the range of 3-15 ℃/min, and the cooling rate is controlled within the range of 3-5 ℃/min;
(S2) mold preheating: heating the male die to a temperature of between 42 and 45 ℃, and heating the female die and the blank holder die to a temperature of between 135 and 145 ℃;
(S3) applying a stamping oil: coating first stamping oil on the surface of a male die, and coating second stamping oil on the surfaces of a female die and a blank pressing die; coating first stamping oil on one surface of the pretreated aluminum alloy plate, and coating second stamping oil on the other surface of the aluminum alloy plate;
(S4) stamping: putting the aluminum alloy plate into a die, enabling the side coated with the first stamping oil to be opposite to the male die, then performing punch forming, and taking out the aluminum alloy plate after the temperature gradient of the aluminum alloy plate disappears; controlling the drawing rate within the range of 0.1-0.3mm/s and the blank holder force within the range of 4.5-5N/mm during stamping 2 Within the range;
(S5) cleaning: after the punched aluminum alloy plate is naturally cooled to room temperature, soaking in a cleaning solution for 30-90 min; taking out and then cleaning with clear water;
the first punching oil is low-temperature oil-water mixed punching oil, and the second punching oil is high-temperature oily punching oil.
Preferably, in the stamping forming process of the aluminum alloy cooling fin, the aluminum alloy plate comprises the following components in percentage by weight: 2.5 to 2.8 percent of Si, 0.65 to 0.72 percent of Mg, 0.05 to 0.08 percent of Zn, 0.01 to 0.05 percent of Cu, 0.015 to 0.03 percent of Ti, 0.05 to 0.1 percent of Co, 0.03 to 0.05 percent of Nd, 0.05 to 0.08 percent of Cr, 0.08 to 0.12 percent of Fe, the balance of Al, and the total amount of impurity elements is less than 0.1 percent.
Preferably, in the stamping forming process of the aluminum alloy cooling fin, the first stamping oil comprises the following components by weight: 100 parts of C12-C18 fatty acid, 40-50 parts of water, 40-60 parts of oleic acid, 8-12 parts of triisopropanolamine, 3-6 parts of N-methylmorpholine, 2-3 parts of C8-C10 straight-chain fatty alcohol, 3-4 parts of fatty alcohol polyoxyethylene ether, 1-2 parts of fatty alcohol polyoxyethylene polyoxypropylene ether, 1-3 parts of alkylolamide, 1-2 parts of fatty alcohol polyoxyethylene ester, 20-30 parts of pentaerythritol ester, 10-20 parts of sulfurized tallow fatty acid, 5-10 parts of chlorinated paraffin, 1-2 parts of methylphenyl silicone oil and 1-2 parts of methylbenzotriazole.
Preferably, in the stamping forming process of the aluminum alloy cooling fin, the second stamping oil comprises the following components by weight: TOTAL hydro seal G250H white mineral oil, 30-40 parts of castor oil, 5-8 parts of polyisobutene, 2-3 parts of dialkyl pentasulfide, 3-4 parts of oleic acid, 0.5-2 parts of di-n-butyl phosphite, 0.5-0.8 part of petroleum sodium sulfonate, 0.5-0.8 part of dioctyl diphenylamine, 0.1-0.2 part of octyl butyl diphenylamine, 0.1-0.2 part of trioctyl diphenylamine and 0.05-0.1 part of 2, 6-dichloro cinnamic acid.
Preferably, in the stamping forming process of the aluminum alloy cooling fin, the cleaning solution comprises the following components by weight: 200 parts of water, 3-4 parts of sodium pyruvate, 4-5 parts of potassium nitrate, 3-5 parts of dodecyl dimethyl benzyl amine oxide, 2-3 parts of isoamyl acetate, 1-2 parts of myrcene, 3-5 parts of coconut diethanolamide, 1-2 parts of p-phenoxy dilauryl alcohol polyoxyethylene ether, 2-3 parts of sodium citrate, 1-2 parts of sodium pyrophosphate, 1-4 parts of diallyl ethanolamine, 1-3 parts of triazine triaminohexanoate ethanolamine salt, 1-2 parts of phenylacetic acid ethanolamine and 1-2 parts of diallyl ethanolamine borate.
Further preferably, in the stamping forming process of the aluminum alloy cooling fin, the cleaning solution comprises the following components by weight: 200 parts of water, 3 parts of sodium pyruvate, 4 parts of potassium nitrate, 5 parts of dodecyl dimethyl benzyl amine oxide, 2 parts of isoamyl acetate, 2 parts of myrcene, 4 parts of coconut diethanolamide, 2 parts of p-phenoxy dilauryl alcohol polyoxyethylene ether, 3 parts of sodium citrate, 1 part of sodium pyrophosphate, 3 parts of diallyl ethanolamine, 2 parts of triazine triaminohexanoate ethanolamine salt, 1 part of phenylacetic acid ethanolamine and 1 part of diallyl ethanolamine borate.
Further preferably, in the above-mentioned press forming process of the aluminum alloy heat sink, in the step (S1), the heating rate is 5 ℃/min.
Further preferably, in the above-described press forming process of an aluminum alloy fin, in the step (S4), the drawing rate is controlled within a range of 0.2 ± 0.02mm/S during the pressing.
Further, the above-mentioned press forming process of the aluminum alloy fin further includes a step (S6) of heat treatment: and (3) preserving the heat of the cleaned aluminum alloy plate for 8-10h at the temperature of 145-150 ℃ for aging treatment.
Has the advantages that: the invention provides the punch forming process of the aluminum alloy radiating fin, which has reasonable steps and simple and convenient operation; according to the invention, through pre-heat treatment, different stamping oil and reasonable cleaning fluid with different properties are prepared according to different stress states and temperatures of two surfaces of the aluminum alloy plate; in addition, the aluminum alloy material and the corresponding differential temperature punch forming process are matched and optimized aiming at the purpose of the radiating fin. The aluminum alloy radiating fin manufactured by the punch forming process provided by the invention has the advantages of fine and smooth surface, no deformation and cracking in a cold and hot alternating environment, no residual punching oil on the surface and high radiating efficiency.
Detailed Description
The invention will be further illustrated by the following specific examples, which are given for the purpose of illustration only and are not intended to be limiting.
Example 1
A punch forming process of an aluminum alloy radiating fin comprises the following steps: the method comprises the following steps:
(S1) preprocessing: heating the aluminum alloy plate to 465 ℃, preserving heat for 75min, and then cooling to 52-55 ℃; the heating rate is within the range of 3 ℃/min, and the cooling rate is controlled within the range of 3-5 ℃/min;
(S2) mold preheating: heating the male die to a temperature of between 42 and 45 ℃, and heating the female die and the blank holder die to a temperature of between 135 and 138 ℃;
(S3) applying a stamping oil: coating first stamping oil on the surface of a male die, and coating second stamping oil on the surfaces of a female die and a blank pressing die; coating first stamping oil on one surface of the pretreated aluminum alloy plate, and coating second stamping oil on the other surface of the aluminum alloy plate;
(S4) pressing: putting the aluminum alloy plate into a die, enabling the side coated with the first stamping oil to be opposite to the male die, then performing punch forming, and taking out the aluminum alloy plate after the temperature gradient of the aluminum alloy plate disappears; controlling the drawing rate within the range of 0.1-0.12mm/s and the blank holder force within the range of 4.5-5N/mm during stamping 2 Within the range;
(S5) cleaning: after the stamped aluminum alloy plate is naturally cooled to room temperature, soaking in a cleaning solution for 30 min; taking out and then cleaning with clear water;
the first punching oil is low-temperature oil-water mixed punching oil, and the second punching oil is high-temperature oily punching oil.
In this embodiment, the aluminum alloy plate comprises the following components in percentage by weight: 2.5 percent of Si, 0.65 percent of Mg, 0.05 percent of Zn, 0.01 percent of Cu, 0.015 percent of Ti, 0.05 percent of Co, 0.03 percent of Nd, 0.05 percent of Cr, 0.08 percent of Fe and the balance of Al, wherein the total amount of impurity elements is less than 0.1 percent.
In this embodiment, the first stamping oil includes the following components by weight: 100 parts of C12-C18 fatty acid, 40 parts of water, 40 parts of oleic acid, 8 parts of triisopropanolamine, 3 parts of N-methylmorpholine, 2 parts of C8-C10 straight-chain fatty alcohol, 3 parts of fatty alcohol-polyoxyethylene ether, 1 part of fatty alcohol-polyoxyethylene polyoxypropylene ether, 1 part of alkylolamide, 1 part of fatty alcohol-polyoxyethylene ester, 20 parts of pentaerythritol ester, 10 parts of sulfurized tallow fatty acid, 5 parts of chlorinated paraffin, 1 part of methyl phenyl silicone oil and 1 part of methylbenzotriazole.
In this embodiment, the second stamping oil includes the following components by weight: TOTAL hydro seal G250H white mineral oil, 30 parts of castor oil, 5 parts of polyisobutylene, 2 parts of dialkyl pentasulfide, 3 parts of oleic acid, 0.5 part of di-n-butyl phosphite, 0.5 part of petroleum sodium sulfonate, 0.5 part of dioctyl diphenylamine, 0.1 part of octyl butyl diphenylamine, 0.1 part of trioctyl diphenylamine and 0.05 part of 2, 6-dichlorocinnamic acid.
In this embodiment, the cleaning solution comprises the following components by weight: 200 parts of water, 3 parts of sodium pyruvate, 4 parts of potassium nitrate, 3 parts of dodecyl dimethyl benzyl amine oxide, 2 parts of isoamyl acetate, 1 part of myrcene, 3 parts of coconut diethanolamide, 1 part of p-phenoxy dilauryl alcohol polyoxyethylene ether, 2 parts of sodium citrate, 1 part of sodium pyrophosphate, 1 part of diallyl ethanolamine, 1 part of triazine triaminohexanoate ethanolamine salt, 1 part of phenylacetic acid ethanolamine and 1 part of diallyl ethanolamine borate.
Example 2
A punch forming process of an aluminum alloy radiating fin comprises the following steps: the method comprises the following steps:
(S1) preprocessing: heating the aluminum alloy plate to 480 ℃, preserving heat for 120min, and then cooling to 52-55 ℃; the heating rate is controlled to be 15 ℃/min, and the cooling rate is controlled to be within the range of 3-5 ℃/min;
(S2) mold preheating: heating the male die to a temperature of between 42 and 45 ℃, and heating the female die and the blank pressing die to a temperature of between 142 and 145 ℃;
(S3) applying a stamping oil: coating first stamping oil on the surface of a male die, and coating second stamping oil on the surfaces of a female die and a blank pressing die; coating first stamping oil on one surface of the pretreated aluminum alloy plate, and coating second stamping oil on the other surface of the aluminum alloy plate;
(S4) pressing: putting the aluminum alloy plate into a die, enabling the side coated with the first stamping oil to be opposite to the male die, then performing punch forming, and taking out the aluminum alloy plate after the temperature gradient of the aluminum alloy plate disappears; controlling the drawing rate within the range of 0.25-0.3mm/s and the blank holder force within the range of 4.5-5N/mm2 during stamping;
(S5) cleaning: after the stamped aluminum alloy plate is naturally cooled to room temperature, soaking the aluminum alloy plate in cleaning fluid for 90 min; taking out and then cleaning with clear water;
the first punching oil is low-temperature oil-water mixed punching oil, and the second punching oil is high-temperature oily punching oil.
In this embodiment, the aluminum alloy plate comprises the following components in percentage by weight: 2.8% of Si, 0.72% of Mg, 0.08% of Zn, 0.05% of Cu, 0.03% of Ti, 0.1% of Co, 0.05% of Nd, 0.08% of Cr, 0.12% of Fe and the balance of Al, wherein the total amount of impurity elements is less than 0.1%.
In this embodiment, the first stamping oil includes the following components by weight: 100 parts of C12-C18 fatty acid, 50 parts of water, 60 parts of oleic acid, 12 parts of triisopropanolamine, 6 parts of N-methylmorpholine, 3 parts of C8-C10 straight-chain fatty alcohol, 4 parts of fatty alcohol-polyoxyethylene ether, 2 parts of fatty alcohol-polyoxyethylene polyoxypropylene ether, 3 parts of alkylolamide, 2 parts of fatty alcohol-polyoxyethylene ester, 30 parts of pentaerythritol ester, 20 parts of sulfurized tallow fatty acid, 10 parts of chlorinated paraffin, 2 parts of methyl phenyl silicone oil and 2 parts of methylbenzotriazole.
In this embodiment, the second stamping oil includes the following components by weight: TOTAL hydro seal G250H white mineral oil, 40 parts of castor oil, 8 parts of polyisobutylene, 3 parts of dialkyl pentasulfide, 4 parts of oleic acid, 2 parts of di-n-butyl phosphite, 0.8 part of petroleum sodium sulfonate, 0.8 part of dioctyl diphenylamine, 0.2 part of octyl butyl diphenylamine, 0.2 part of trioctyl diphenylamine and 0.1 part of 2, 6-dichlorocinnamic acid.
In this embodiment, the cleaning solution comprises the following components by weight: 200 parts of water, 4 parts of sodium pyruvate, 5 parts of potassium nitrate, 5 parts of dodecyl dimethyl benzyl amine oxide, 3 parts of isoamyl acetate, 2 parts of myrcene, 5 parts of coconut diethanolamide, 2 parts of p-phenoxy dilauryl alcohol polyoxyethylene ether, 3 parts of sodium citrate, 2 parts of sodium pyrophosphate, 4 parts of diallyl ethanolamine, 3 parts of triazine triaminohexanoate ethanolamine salt, 2 parts of phenylacetic acid ethanolamine and 2 parts of diallyl ethanolamine borate.
In this embodiment, the method further includes a step (S6) of heat-treating: and (3) preserving the heat of the cleaned aluminum alloy plate for 8-10h at the temperature of 145-150 ℃ for aging treatment.
Example 3
A punch forming process of an aluminum alloy radiating fin comprises the following steps: the method comprises the following steps:
(S1) preprocessing: heating the aluminum alloy plate to 475 ℃, preserving heat for 90min, and then cooling to 52-55 ℃; the heating rate is controlled within the range of 5 ℃/min, and the cooling rate is controlled within the range of 3-5 ℃/min;
(S2) mold preheating: heating the male die to 42-45 ℃, and heating the female die and the blank pressing die to 140 ℃;
(S3) applying a stamping oil: coating first stamping oil on the surface of a male die, and coating second stamping oil on the surfaces of a female die and a blank pressing die; coating first stamping oil on one surface of the pretreated aluminum alloy plate, and coating second stamping oil on the other surface of the aluminum alloy plate;
(S4) pressing: putting the aluminum alloy plate into a die, enabling the side coated with the first stamping oil to be opposite to the male die, then performing punch forming, and taking out the aluminum alloy plate after the temperature gradient of the aluminum alloy plate disappears; controlling the drawing rate within 0.2 +/-0.02 mm/s and the blank holder force within 4.5-5N/mm during stamping 2 Within the range;
(S5) cleaning: after the punched aluminum alloy plate is naturally cooled to room temperature, soaking in a cleaning solution for 30-90 min; taking out and then cleaning with clear water;
the first punching oil is low-temperature oil-water mixed punching oil, and the second punching oil is high-temperature oily punching oil.
In this embodiment, the aluminum alloy plate comprises the following components in percentage by weight: 2.5 percent of Si, 0.7 percent of Mg, 0.06 percent of Zn, 0.03 percent of Cu, 0.02 percent of Ti, 0.05 percent of Co, 0.04 percent of Nd, 0.06 percent of Cr, 0.08 percent of Fe and the balance of Al, wherein the total amount of impurity elements is less than 0.1 percent.
In this embodiment, the first stamping oil includes the following components by weight: 100 parts of C12-C18 fatty acid, 45 parts of water, 50 parts of oleic acid, 11 parts of triisopropanolamine, 5 parts of N-methylmorpholine, 2 parts of C8-C10 straight-chain fatty alcohol, 4 parts of fatty alcohol-polyoxyethylene ether, 1 part of fatty alcohol-polyoxyethylene polyoxypropylene ether, 2 parts of alkylolamide, 2 parts of fatty alcohol-polyoxyethylene ester, 25 parts of pentaerythritol ester, 15 parts of sulfurized tallow fatty acid, 7 parts of chlorinated paraffin, 2 parts of methyl phenyl silicone oil and 1 part of methylbenzotriazole.
In this embodiment, the second stamping oil includes the following components by weight: TOTAL hydro seal G250H white mineral oil, 35 parts of castor oil, 6 parts of polyisobutylene, 2 parts of dialkyl pentasulfide, 3 parts of oleic acid, 1.2 parts of di-n-butyl phosphite, 0.6 part of petroleum sodium sulfonate, 0.6 part of dioctyl diphenylamine, 0.2 part of octyl butyl diphenylamine, 0.1 part of trioctyl diphenylamine and 0.075 part of 2, 6-dichlorocinnamic acid.
In this embodiment, the cleaning solution comprises the following components by weight: 200 parts of water, 3 parts of sodium pyruvate, 4 parts of potassium nitrate, 5 parts of dodecyl dimethyl benzyl amine oxide, 2 parts of isoamyl acetate, 2 parts of myrcene, 4 parts of coconut diethanolamide, 2 parts of p-phenoxy dilauryl alcohol polyoxyethylene ether, 3 parts of sodium citrate, 1 part of sodium pyrophosphate, 3 parts of diallyl ethanolamine, 2 parts of triazine triaminohexanoate ethanolamine salt, 1 part of phenylacetic acid ethanolamine and 1 part of diallyl ethanolamine borate.
In this embodiment, the method further includes a step (S6) of heat-treating: and (3) preserving the heat of the cleaned aluminum alloy plate for 10 hours at the temperature of 145-150 ℃ for aging treatment.
The above embodiments are merely preferred embodiments of the present invention, and it should be noted that, for those skilled in the art, several modifications can be made without departing from the principle of the present invention, and these modifications should also be regarded as the protection scope of the present invention.

Claims (9)

1. The punch forming process of the aluminum alloy radiating fin is characterized by comprising the following steps of: the method comprises the following steps:
(S1) preprocessing: heating the aluminum alloy plate to 465-480 ℃, preserving heat for more than 75min, and then cooling to 52-55 ℃; the heating rate is controlled within the range of 3-15 ℃/min, and the cooling rate is controlled within the range of 3-5 ℃/min;
(S2) mold preheating: heating the male die to a temperature of between 42 and 45 ℃, and heating the female die and the blank holder die to a temperature of between 135 and 145 ℃;
(S3) applying a stamping oil: coating first stamping oil on the surface of a male die, and coating second stamping oil on the surfaces of a female die and a blank pressing die; coating first stamping oil on one surface of the pretreated aluminum alloy plate, and coating second stamping oil on the other surface of the aluminum alloy plate;
(S4) pressing: putting the aluminum alloy plate into a die, enabling the surface coated with the first punching oil to be opposite to the male die, then performing punch forming, and taking out the aluminum alloy plate after the temperature gradient of the aluminum alloy plate disappears; during stamping, the drawing rate is controlled within the range of 0.1-0.3mm/s, and the blank holder force is controlled within the range of 4.5-5N/mm 2 Within the range;
(S5) cleaning: after the punched aluminum alloy plate is naturally cooled to room temperature, soaking in a cleaning solution for 30-90 min; taking out and then cleaning with clear water;
the first punching oil is low-temperature oil-water mixed punching oil, and the second punching oil is high-temperature oily punching oil.
2. A press forming process of an aluminum alloy fin according to claim 1, characterized in that: the aluminum alloy plate comprises the following components in percentage by weight: 2.5 to 2.8 percent of Si, 0.65 to 0.72 percent of Mg, 0.05 to 0.08 percent of Zn, 0.01 to 0.05 percent of Cu, 0.015 to 0.03 percent of Ti, 0.05 to 0.1 percent of Co, 0.03 to 0.05 percent of Nd, 0.05 to 0.08 percent of Cr, 0.08 to 0.12 percent of Fe, the balance of Al, and the total amount of impurity elements is less than 0.1 percent.
3. A press forming process of an aluminum alloy fin according to claim 1, characterized in that: the first stamping oil comprises the following components in parts by weight: 100 parts of C12-C18 fatty acid, 40-50 parts of water, 40-60 parts of oleic acid, 8-12 parts of triisopropanolamine, 3-6 parts of N-methylmorpholine, 2-3 parts of C8-C10 straight-chain fatty alcohol, 3-4 parts of fatty alcohol polyoxyethylene ether, 1-2 parts of fatty alcohol polyoxyethylene polyoxypropylene ether, 1-3 parts of alkylolamide, 1-2 parts of fatty alcohol polyoxyethylene ester, 20-30 parts of pentaerythritol ester, 10-20 parts of sulfurized tallow fatty acid, 5-10 parts of chlorinated paraffin, 1-2 parts of methylphenyl silicone oil and 1-2 parts of methylbenzotriazole.
4. A press forming process of an aluminum alloy fin according to claim 3, characterized in that: the second punching oil comprises the following components in parts by weight: TOTAL hydro seal G250H white mineral oil, 30-40 parts of castor oil, 5-8 parts of polyisobutene, 2-3 parts of dialkyl pentasulfide, 3-4 parts of oleic acid, 0.5-2 parts of di-n-butyl phosphite, 0.5-0.8 part of petroleum sodium sulfonate, 0.5-0.8 part of dioctyl diphenylamine, 0.1-0.2 part of octyl butyl diphenylamine, 0.1-0.2 part of trioctyl diphenylamine and 0.05-0.1 part of 2, 6-dichloro cinnamic acid.
5. A press forming process of an aluminum alloy fin according to claim 3, characterized in that: the cleaning solution comprises the following components in parts by weight: 200 parts of water, 3-4 parts of sodium pyruvate, 4-5 parts of potassium nitrate, 3-5 parts of dodecyl dimethyl benzyl amine oxide, 2-3 parts of isoamyl acetate, 1-2 parts of myrcene, 3-5 parts of coconut diethanolamide, 1-2 parts of p-phenoxy dilauryl alcohol polyoxyethylene ether, 2-3 parts of sodium citrate, 1-2 parts of sodium pyrophosphate, 1-4 parts of diallyl ethanolamine, 1-3 parts of triazine triaminohexanoate ethanolamine salt, 1-2 parts of phenylacetic acid ethanolamine and 1-2 parts of diallyl ethanolamine borate.
6. A press forming process of an aluminum alloy fin according to claim 5, wherein: the cleaning solution comprises the following components in parts by weight: 200 parts of water, 3 parts of sodium pyruvate, 4 parts of potassium nitrate, 5 parts of dodecyl dimethyl benzyl amine oxide, 2 parts of isoamyl acetate, 2 parts of myrcene, 4 parts of coconut diethanolamide, 2 parts of p-phenoxy dilauryl alcohol polyoxyethylene ether, 3 parts of sodium citrate, 1 part of sodium pyrophosphate, 3 parts of diallyl ethanolamine, 2 parts of triazine triaminohexanoate ethanolamine salt, 1 part of phenylacetic acid ethanolamine and 1 part of diallyl ethanolamine borate.
7. A press forming process of an aluminum alloy fin according to claim 1, characterized in that: in step (S1), the heating rate was 5 ℃/min.
8. A press forming process of an aluminum alloy fin according to claim 1, characterized in that: in the step (S4), the drawing rate is controlled within the range of 0.2. + -. 0.02mm/S at the time of stamping.
9. A press forming process of an aluminum alloy fin according to claim 1, characterized in that: further comprising the step (S6) of heat treating: and (3) preserving the heat of the cleaned aluminum alloy plate for 8-10h at the temperature of 145-150 ℃ for aging treatment.
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