CN112045160A - Quick cooling method for die-casting mold - Google Patents

Quick cooling method for die-casting mold Download PDF

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Publication number
CN112045160A
CN112045160A CN202010880037.3A CN202010880037A CN112045160A CN 112045160 A CN112045160 A CN 112045160A CN 202010880037 A CN202010880037 A CN 202010880037A CN 112045160 A CN112045160 A CN 112045160A
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Prior art keywords
die
cooling
liquid
casting
cooling liquid
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CN202010880037.3A
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Chinese (zh)
Inventor
黄智红
黄智钢
黄亚东
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Jingjiang Jushun Precision Lighti Alloy Molding Technology Co ltd
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Jingjiang Jushun Precision Lighti Alloy Molding Technology Co ltd
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Priority to CN202010880037.3A priority Critical patent/CN112045160A/en
Publication of CN112045160A publication Critical patent/CN112045160A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20—Accessories: Details
    • B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
    • B22D17/2218—Cooling or heating equipment for dies
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
    • C09K5/08—Materials not undergoing a change of physical state when used
    • C09K5/10—Liquid materials
    • 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
    • C10M173/00—Lubricating compositions containing more than 10% water
    • 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
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/08—Inorganic acids or salts thereof
    • C10M2201/082—Inorganic acids or salts thereof containing nitrogen
    • 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
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/08—Inorganic acids or salts thereof
    • C10M2201/082—Inorganic acids or salts thereof containing nitrogen
    • C10M2201/083—Inorganic acids or salts thereof containing nitrogen nitrites
    • 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
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/087—Boron oxides, acids or salts
    • 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
    • C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
    • 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
    • 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
    • C10M2207/022—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms containing at least two hydroxy groups
    • 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
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/10—Carboxylix acids; Neutral salts thereof
    • 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
    • C10M2207/127—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 polycarboxylic
    • 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
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/40—Fatty vegetable or animal oils
    • C10M2207/402—Castor oils
    • 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
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/04—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to an alcohol or ester thereof; bound to an aldehyde, ketonic, ether, ketal or acetal radical
    • 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
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
    • C10M2209/104—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing two carbon atoms only
    • 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
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
    • C10M2215/04—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2215/042—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms containing hydroxy groups; Alkoxylated derivatives thereof
    • 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
    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Combustion & Propulsion (AREA)
  • Thermal Sciences (AREA)
  • Materials Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Mechanical Engineering (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Abstract

The invention discloses a rapid cooling method of a die-casting die, which comprises the following cooling steps: a. firstly, the liquid pump sucks out the cooling liquid in the cooling liquid tank, the cooling liquid is conveyed to the liquid inlet through the liquid conveying pipeline, and then the cooling liquid is guided into a cooling flow channel in the die-casting die through the liquid inlet; b. after the step a is finished, guiding the cooling liquid in the cooling flow channel into a liquid outlet pipe through a liquid outlet, and conveying the cooling liquid into a cooling liquid tank through the liquid outlet pipe; c. after step b is finished, the small refrigerator generates cold air. According to the invention, through the combination of the small refrigerator and the blowing fan, cold air can be effectively blown to the outer surface of the die-casting die, the time for cooling the outer surface of the die-casting die is saved, and the rectangular cover is adopted to blow cold air after covering the die-casting die, so that the cooling speed of the cooling liquid is reduced, the cooling speed of the cooling liquid is increased, and the effect of cooling the product in the die-casting die is enhanced.

Description

Quick cooling method for die-casting mold
Technical Field
The invention relates to the technical field of die-casting molds, in particular to a rapid cooling method of a die-casting mold.
Background
The method of forming a die-casting mold is a precision casting method in which a molten alloy is filled under high pressure and high speed conditions and cooled and solidified under high pressure to form a casting.
Currently, existing cooling methods for die-casting molds suffer from deficiencies, such as; the existing cooling method for the die-casting mold is that direct compressed air is used for blowing the outer surface of the die-casting mold, the cooling time of the outer surface of the die-casting mold is long, the cooling efficiency of the outer surface of the die-casting mold is reduced, the cooling speed of the existing cooling liquid is slow, and the effect of cooling products inside the die-casting mold is weakened.
Disclosure of Invention
The invention aims to provide a rapid cooling method of a die-casting die, which solves the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a rapid cooling method of a die-casting mold comprises the following cooling steps:
a. firstly, the liquid pump sucks out the cooling liquid in the cooling liquid tank, the cooling liquid is conveyed to the liquid inlet through the liquid conveying pipeline, and then the cooling liquid is guided into a cooling flow channel in the die-casting die through the liquid inlet;
b. after the step a is finished, guiding the cooling liquid in the cooling flow channel into a liquid outlet pipe through a liquid outlet, and conveying the cooling liquid into a cooling liquid tank through the liquid outlet pipe;
c. after the step b is finished, generating cold air by the small refrigerator, conveying the cold air generated by the small refrigerator into the rectangular cover by the blowing fan through a pipeline, covering the rectangular cover outside the die-casting die, and blowing the cold air in the rectangular cover against the outer surface of the die-casting die;
d. and after the temperature of the outer surface of the die-casting die is reduced, taking out the product in the die-casting die.
In a preferred embodiment of the present invention, the cooling flow channel in step a is in a shape of a Chinese character 'hui', the liquid inlet is located at the right end of the die-casting mold, and the liquid conveying pipe is an aluminum-plastic composite pipe.
As a preferred embodiment of the present invention, in the step b, the liquid outlet is located at the left end of the die casting mold, the liquid outlet is made of a copper pipe, and the cooling liquid tank is made of an aluminum alloy material.
As a preferred embodiment of the present invention, the cooling liquid in step a comprises the following raw materials and weight fractions thereof: 20 parts of sulfated lipidated oil; 10 parts of castor oil; 2 parts by mass of sebacic acid; 8 parts of triethanolamine; 3 parts of polyethylene glycol; 4 parts of glycerol; 1 part by mass of kerosene; 1 part by mass of sodium nitrate; 2 parts by mass of sodium nitrite; 4 parts of potassium nitrate; 2 parts by mass of polyvinyl alcohol; 3 parts of boric acid; 40 parts by mass of distilled water.
As a preferred embodiment of the present invention, the cooling liquid is prepared by the following steps:
f. firstly, distilled water is put into a mixer, then sulfated oil, castor oil, triethanolamine, polyethylene glycol, glycerol, polyvinyl alcohol and kerosene are added into the mixer for mixing, the rotating speed during mixing is 500-700 r/min, and the mixing time is 5-10 min, so as to prepare a mixed solution A;
g. after the step f is finished, adding sodium nitrate, sodium nitrite and potassium nitrate into the mixed solution A for mixing at the rotating speed of 400-600 r/min for 10-15 min to prepare mixed solution B;
h. and g, after the step g is finished, adding sebacic acid and boric acid into the mixed solution B for mixing, wherein the rotating speed during mixing is 1000-1200 r/min, the mixing time is 4-7 min, preparing cooling liquid, and filling the cooling liquid into a sealed cooling liquid tank.
In a preferred embodiment of the present invention, in the step c, the small refrigerator generates cold air, and the cold air generated by the small refrigerator is delivered into the rectangular cover by the blower fan through a duct, wherein one end of the duct is hermetically connected to an air outlet of the small refrigerator, and the other end of the duct is hermetically connected to the rectangular cover by the blower fan and communicates with the inside of the rectangular cover.
In a preferred embodiment of the present invention, in the step c, the cold air in the rectangular cover is blown against the outer surface of the die-casting mold for 3 to 7 minutes.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, through the combination of the small refrigerator and the blast fan, cold air can be effectively sprayed on the outer surface of the die-casting die, the time for cooling the outer surface of the die-casting die is saved, and the rectangular cover is adopted to spray cold air after covering the die-casting die, so that the loss speed of the cold air is reduced, and the efficiency for cooling the outer surface of the die-casting die is improved.
Detailed Description
Technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments.
The invention provides a technical scheme that: a rapid cooling method of a die-casting mold comprises the following cooling steps:
a. firstly, the liquid pump sucks out the cooling liquid in the cooling liquid tank, the cooling liquid is conveyed to the liquid inlet through the liquid conveying pipeline, and then the cooling liquid is guided into a cooling flow channel in the die-casting die through the liquid inlet;
b. after the step a is finished, guiding the cooling liquid in the cooling flow channel into a liquid outlet pipe through a liquid outlet, and conveying the cooling liquid into a cooling liquid tank through the liquid outlet pipe;
c. after the step b is finished, generating cold air by the small refrigerator, conveying the cold air generated by the small refrigerator into the rectangular cover by the blowing fan through a pipeline, covering the rectangular cover outside the die-casting die, and blowing the cold air in the rectangular cover against the outer surface of the die-casting die;
d. and after the temperature of the outer surface of the die-casting die is reduced, taking out the product in the die-casting die.
Furthermore, the cooling runner in the step a is in a shape of a Chinese character 'hui', the liquid inlet is positioned at the right end of the die-casting die, and the liquid conveying pipe is an aluminum-plastic composite pipe.
And furthermore, the liquid outlet in the step b is positioned at the left end of the die-casting die, the liquid outlet is made of a copper pipe, and the cooling liquid tank is made of aluminum alloy.
Further, the cooling liquid in the step a comprises the following raw materials in parts by weight: 20 parts of sulfated lipidated oil; 10 parts of castor oil; 2 parts by mass of sebacic acid; 8 parts of triethanolamine; 3 parts of polyethylene glycol; 4 parts of glycerol; 1 part by mass of kerosene; 1 part by mass of sodium nitrate; 2 parts by mass of sodium nitrite; 4 parts of potassium nitrate; 2 parts by mass of polyvinyl alcohol; 3 parts of boric acid; 40 parts by mass of distilled water.
Further, the cooling liquid is prepared by the following steps:
f. firstly, distilled water is put into a mixer, then sulfated oil, castor oil, triethanolamine, polyethylene glycol, glycerol, polyvinyl alcohol and kerosene are added into the mixer for mixing, the rotating speed during mixing is 500-700 r/min, and the mixing time is 5-10 min, so as to prepare a mixed solution A;
g. after the step f is finished, adding sodium nitrate, sodium nitrite and potassium nitrate into the mixed solution A for mixing at the rotating speed of 400-600 r/min for 10-15 min to prepare mixed solution B;
h. and g, after the step g is finished, adding sebacic acid and boric acid into the mixed solution B for mixing, wherein the rotating speed during mixing is 1000-1200 r/min, the mixing time is 4-7 min, preparing cooling liquid, and filling the cooling liquid into a sealed cooling liquid tank.
Furthermore, in the step c, the small-sized refrigerator generates cold air, the blowing fan conveys the cold air generated by the small-sized refrigerator into the rectangular cover through a pipeline, one end of the pipeline is hermetically connected with an air outlet of the small-sized refrigerator, and the other end of the pipeline is hermetically connected with the rectangular cover through a blower and communicated with the inside of the rectangular cover.
And furthermore, in the step c, blowing cold air in the rectangular cover against the outer surface of the die-casting mould for 3-7 min.
Example one
A rapid cooling method of a die-casting mold comprises the following cooling steps:
a. firstly, the liquid pump sucks out the cooling liquid in the cooling liquid tank, the cooling liquid is conveyed to the liquid inlet through the liquid conveying pipeline, and then the cooling liquid is guided into a cooling flow channel in the die-casting die through the liquid inlet;
b. after the step a is finished, guiding the cooling liquid in the cooling flow channel into a liquid outlet pipe through a liquid outlet, and conveying the cooling liquid into a cooling liquid tank through the liquid outlet pipe;
c. after the step b is finished, generating cold air by the small refrigerator, conveying the cold air generated by the small refrigerator into the rectangular cover by the blowing fan through a pipeline, covering the rectangular cover outside the die-casting die, and blowing the cold air in the rectangular cover against the outer surface of the die-casting die;
d. and after the temperature of the outer surface of the die-casting die is reduced, taking out the product in the die-casting die.
In conclusion, the small refrigerator and the blowing fan are combined, cold air can be effectively blown to the outer surface of the die-casting die, the time for cooling the outer surface of the die-casting die is saved, the rectangular cover is adopted to blow the cold air to the rear of the die-casting die, the dissipation speed of the cold air is reduced, and the efficiency for cooling the outer surface of the die-casting die is improved.
Example two
The preparation steps of the cooling liquid are as follows:
f. firstly, distilled water is put into a mixer, then sulfated oil, castor oil, triethanolamine, polyethylene glycol, glycerol, polyvinyl alcohol and kerosene are added into the mixer for mixing, the rotating speed during mixing is 500-700 r/min, and the mixing time is 5-10 min, so as to prepare a mixed solution A;
g. after the step f is finished, adding sodium nitrate, sodium nitrite and potassium nitrate into the mixed solution A for mixing at the rotating speed of 400-600 r/min for 10-15 min to prepare mixed solution B;
h. and g, after the step g is finished, adding sebacic acid and boric acid into the mixed solution B for mixing, wherein the rotating speed during mixing is 1000-1200 r/min, the mixing time is 4-7 min, preparing cooling liquid, and filling the cooling liquid into a sealed cooling liquid tank.
In conclusion, the special cooling liquid is adopted to cool the interior of the die-casting die, so that the cooling speed of the cooling liquid is increased, and the effect of cooling products in the die-casting die is enhanced.
The traditional die-casting mould data parameters table 1 are as follows:
test items Rate of cooling Cooling by cooling liquid Cooling energy consumption Cooling time
Parameter index Is slower In general In general Is longer
Example one die casting die data parameters table 2 is as follows:
test items Rate of cooling Cooling by cooling liquid Cooling energy consumption Cooling time
Parameter index Is quicker Is quicker Is lower than Is shorter
Data parameters of the die-casting mold of the second embodiment are as follows:
test items Rate of cooling Cooling by cooling liquid Cooling energy consumption Cooling time
Parameter index Fast-acting toy Fast-acting toy Is low in Short length
In summary, the data comparison in tables 1, 2 and 3 is used for obtaining that the cold air blowing device can effectively blow cold air to the outer surface of the die-casting die through the combination of the small refrigerator and the air blowing fan, so that the time for cooling the outer surface of the die-casting die is saved, the rectangular cover is adopted to blow the cold air to the rear of the die-casting die cover, the loss speed of the cold air is reduced, the efficiency for cooling the outer surface of the die-casting die is improved, the special cooling liquid is adopted to cool the inside of the die-casting die, the cooling speed of the cooling liquid is accelerated, and the effect for cooling products in the die-casting die is enhanced.
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (7)

1. A rapid cooling method of a die-casting die is characterized in that: the cooling steps are as follows:
a. firstly, the liquid pump sucks out the cooling liquid in the cooling liquid tank, the cooling liquid is conveyed to the liquid inlet through the liquid conveying pipeline, and then the cooling liquid is guided into a cooling flow channel in the die-casting die through the liquid inlet;
b. after the step a is finished, guiding the cooling liquid in the cooling flow channel into a liquid outlet pipe through a liquid outlet, and conveying the cooling liquid into a cooling liquid tank through the liquid outlet pipe;
c. after the step b is finished, generating cold air by the small refrigerator, conveying the cold air generated by the small refrigerator into the rectangular cover by the blowing fan through a pipeline, covering the rectangular cover outside the die-casting die, and blowing the cold air in the rectangular cover against the outer surface of the die-casting die;
d. and after the temperature of the outer surface of the die-casting die is reduced, taking out the product in the die-casting die.
2. A method for rapid cooling of die casting molds in accordance with claim 1, wherein: the cooling runner in the step a is in a shape of a Chinese character 'hui', the liquid inlet is positioned at the right end of the die-casting die, and the liquid conveying pipe is an aluminum-plastic composite pipe.
3. A method for rapid cooling of die casting molds in accordance with claim 1, wherein: and in the step b, the liquid outlet is positioned at the left end of the die-casting die, the liquid outlet is made of a copper pipe, and the cooling liquid tank is made of an aluminum alloy material.
4. A method for rapid cooling of die casting molds in accordance with claim 1, wherein: the cooling liquid in the step a comprises the following raw materials in parts by weight: 20 parts of sulfated lipidated oil; 10 parts of castor oil; 2 parts by mass of sebacic acid; 8 parts of triethanolamine; 3 parts of polyethylene glycol; 4 parts of glycerol; 1 part by mass of kerosene; 1 part by mass of sodium nitrate; 2 parts by mass of sodium nitrite; 4 parts of potassium nitrate; 2 parts by mass of polyvinyl alcohol; 3 parts of boric acid; 40 parts by mass of distilled water.
5. A method for rapid cooling of die-casting molds according to claim 4, characterized in that: the preparation steps of the cooling liquid are as follows:
f. firstly, distilled water is put into a mixer, then sulfated oil, castor oil, triethanolamine, polyethylene glycol, glycerol, polyvinyl alcohol and kerosene are added into the mixer for mixing, the rotating speed during mixing is 500-700 r/min, and the mixing time is 5-10 min, so as to prepare a mixed solution A;
g. after the step f is finished, adding sodium nitrate, sodium nitrite and potassium nitrate into the mixed solution A for mixing at the rotating speed of 400-600 r/min for 10-15 min to prepare mixed solution B;
h. and g, after the step g is finished, adding sebacic acid and boric acid into the mixed solution B for mixing, wherein the rotating speed during mixing is 1000-1200 r/min, the mixing time is 4-7 min, preparing cooling liquid, and filling the cooling liquid into a sealed cooling liquid tank.
6. A method for rapid cooling of die casting molds in accordance with claim 1, wherein: and c, generating cold air by the small refrigerator, conveying the cold air generated by the small refrigerator into the rectangular cover by the blowing fan through a pipeline, wherein one end of the pipeline is hermetically connected with an air outlet of the small refrigerator, and the other end of the pipeline is hermetically connected with the rectangular cover through the blower and communicated with the inside of the rectangular cover.
7. A method for rapid cooling of die casting molds in accordance with claim 1, wherein: and c, blowing cold air in the rectangular cover to the outer surface of the die-casting die for 3-7 min.
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0555976A1 (en) * 1992-02-12 1993-08-18 Ryobi Ltd. Metal mold cooling device
JP2003136188A (en) * 2001-10-31 2003-05-14 Ahresty Corp Die cooling apparatus
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CN208100981U (en) * 2018-01-18 2018-11-16 东莞市美欧精密模具有限公司 A kind of injection mold production cooling device
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