CN110370535A - A kind of production method of radiator structure - Google Patents
A kind of production method of radiator structure Download PDFInfo
- Publication number
- CN110370535A CN110370535A CN201910690341.9A CN201910690341A CN110370535A CN 110370535 A CN110370535 A CN 110370535A CN 201910690341 A CN201910690341 A CN 201910690341A CN 110370535 A CN110370535 A CN 110370535A
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- CN
- China
- Prior art keywords
- semi
- finished product
- heat dissipation
- radiator structure
- production method
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/02—Making uncoated products
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/1418—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14336—Coating a portion of the article, e.g. the edge of the article
- B29C45/14344—Moulding in or through a hole in the article, e.g. outsert moulding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/1418—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure
- B29C2045/14237—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure the inserts being deformed or preformed outside the mould or mould cavity
- B29C2045/14245—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure the inserts being deformed or preformed outside the mould or mould cavity using deforming or preforming means outside the mould cavity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2705/00—Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
- B29K2705/02—Aluminium
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention discloses a kind of production methods of radiator structure, comprising the following steps: the molten aluminum is sent into extrusion die and carries out squeezing aluminium, forms heat dissipation semi-finished product；Connecting hole is opened up on the surface of the heat dissipation semi-finished product；The heat dissipation semi-finished product are placed in bakelite injection mold, carbon-plastic alloy is molded on the radiator semi-finished product surface, the carbon-plastic alloy is made to enter the connecting hole；Cooling and solidifying forms radiator structure.The production method of radiator structure in the present invention is combined together by Shooting Technique by squeezing aluminium and carbon-plastic alloy material, can reduce cost of manufacture, reduces weight, while enhancing heat dissipation effect.
Description
Technical field
The present invention relates to technical field of heat dissipation, specially a kind of production method of radiator structure.
Background technique
As the efficiency of various electronic products is more and more stronger, internal chip also provides therewith more next efficient executes speed
Degree, and the heat generated inside it is also higher and higher, in order to avoid burning chip, radiator structure is needed to radiate it
Processing.In the prior art, radiator structure generally uses metal material, and weight ratio is heavier, and cost of manufacture is higher, is not suitable for one
A bit to the demanding electronic product of weight.
Summary of the invention
The purpose of the present invention is to provide a kind of production methods of radiator structure, reduce cost of manufacture, reduce weight, simultaneously
Enhance heat dissipation effect.
To achieve the above object, the invention provides the following technical scheme:
A kind of production method of radiator structure, comprising the following steps:
The molten aluminum is sent into extrusion die and carries out squeezing aluminium, forms heat dissipation semi-finished product；
Connecting hole is opened up on the surface of the heat dissipation semi-finished product；
The heat dissipation semi-finished product are placed in injection mold, are molded carbon-plastic alloy on the radiator semi-finished product surface,
The carbon-plastic alloy is set to enter the connecting hole；
Cooling and solidifying forms radiator structure.
As further scheme of the invention: after forming the step of radiating semi-finished product, the heat dissipation semi-finished product are straightened.
As the present invention further scheme: after the step of heat dissipation semi-finished product are straightened, according to preset size,
The size of the heat dissipation semi-finished product is adjusted.
As further scheme of the invention: according to preset size, being carried out to the size of the heat dissipation semi-finished product
Before the step of adjustment, the wall thickness for presetting the heat dissipation semi-finished product is 2 millimeters.
As further scheme of the invention: according to preset size, being carried out to the size of the heat dissipation semi-finished product
In the step of adjustment, sawing is carried out to the heat dissipation semi-finished product, and do deburring processing.
As further scheme of the invention: the step of surface in the heat dissipation semi-finished product opens up connecting hole before,
The aluminium oxide layers of the heat dissipation semi-finished product are removed, and make the surface active of the heat dissipation semi-finished product.
As further scheme of the invention: removing the aluminium oxide layers of the heat dissipation semi-finished product, and making the heat dissipation
Before the step of surface active of semi-finished product, the grease on the aluminium oxide layers surface is removed.
As further scheme of the invention: carry out squeezing aluminium the molten aluminum to be sent into extrusion die, and form heat dissipation
Before the step of semi-finished product, by aluminium ingot founding, molten aluminum is formed.
As further scheme of the invention: in the step of surface in the heat dissipation semi-finished product opens up connecting hole,
The connecting hole is nano aperture.
As further scheme of the invention: being placed in injection mold by the heat dissipation semi-finished product, dissipated described
Hot device surface of semi-finished is molded carbon-plastic alloy, enters the carbon-plastic alloy in the connecting hole, makes the table of the carbon-plastic alloy
Face forms multiple installation positions that can be used for installation fins.
Compared with prior art, the beneficial effects of the present invention are:
The production method of radiator structure in the present invention is incorporated in one by Shooting Technique by squeezing aluminium and carbon-plastic alloy material
It rises, cost of manufacture can be reduced, reduce weight, while enhancing heat dissipation effect.
Detailed description of the invention
Fig. 1 is the production method flow chart of radiator structure in one embodiment of the invention；
Fig. 2 is the production method flow chart of radiator structure in another embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1 is the production method flow chart of radiator structure in one embodiment of the invention, the production method of the radiator structure
The following steps are included:
S110, it will carry out squeezing aluminium in molten aluminum feeding extrusion die, form heat dissipation semi-finished product.Wherein, the molten aluminum can
To be formed by LA-6063-T5 aluminium ingot founding.Specifically, the length direction for squeezing aluminium is the upper sealing position of plastic mould, therefore squeeze aluminium
Dimensional tolerance need to control within 0.1 millimeter, burr is run when carbon-plastic alloy being prevented to be molded.
S120, connecting hole is opened up on the surface of the heat dissipation semi-finished product.The connecting hole can be nano aperture, be also possible to
The reverse fastening hole of melten gel.When the connecting hole is nano aperture, the surface of the heat dissipation semi-finished product forms a likeness in form " coral reef "
Structure, the hole in the structure are nano aperture；It, can be on the heat dissipation semi-finished product when the connecting hole is the reverse fastening hole of melten gel
The reverse fastening hole is done every 40 millimeters.
S130, the heat dissipation semi-finished product are placed in injection mold, in radiator semi-finished product surface injection molding carbon modeling
Alloy makes the carbon-plastic alloy enter the connecting hole.Wherein, which can be bakelite injection mold；Carbon-plastic alloy
It is a kind of graphene high-heat-conductive composite material, is combined by graphene and high molecular material, with light weight, fire-retardant, heat-resisting,
Weather resistance is excellent, material thermal expansion coefficient and the low feature of molding shrinkage, at the same have with the comparable heat dissipation effect of aluminium, can
Heat source quickly exports to and is radiated extraneous medium, alternative aluminium in all kinds of cooling fins, radiator, be applicable in LED illumination,
The fields such as communication apparatus, computer, mobile phone terminal, automobile manufacture, electric, and its moulding process is simple, adds without secondary
Work, formula adjustment and design freedom are high, can be according to requiring adjustment related property, complicated shape is made.Carbon-plastic alloy and other
The thermal coefficient and heat emissivity coefficient of material are as shown in table 1.
Table 1:
Wherein, ADC12 is also known as No. 12 aluminium material, and Al-Si-Cu system alloy is a kind of pack alloy, is suitble to valve mechanism cover
Lid, sensor stand, cylinder body class etc.；AL 6063-T6 is a kind of aluminium alloy, hardness T6；S190311032 is rare earth magnesium conjunction
Gold refers to the magnesium alloy containing rare earth element (rare earth).
S140, cooling and solidifying form radiator structure.Wherein, pass through and connect on the carbon-plastic alloy after solidification and heat dissipation semi-finished product
Hole, which is realized, to be combined.
The production method of radiator structure in the present embodiment is incorporated in one by Shooting Technique by squeezing aluminium and carbon-plastic alloy material
It rises, cost of manufacture can be reduced, reduce weight, while enhancing heat dissipation effect.
Fig. 2 is the production method flow chart of radiator structure in another embodiment of the present invention, the production side of the radiator structure
Method the following steps are included:
S211, by aluminium ingot founding, form molten aluminum.Wherein, which can be LA-6063-T5 aluminium ingot.
S212, it will carry out squeezing aluminium in molten aluminum feeding extrusion die, form heat dissipation semi-finished product.It wherein, can be according to selection
Select the extrusion die of suitable shape and size.Specifically, the length direction for squeezing aluminium is the upper sealing position of plastic mould, therefore squeeze
The dimensional tolerance of aluminium need to control within 0.1 millimeter, and burr is run when carbon-plastic alloy being prevented to be molded.
S213, the heat dissipation semi-finished product are straightened.Since the extruded aluminium just squeezed out is easily deformed, needed after having squeezed
It is straightened.
S214, the wall thickness for presetting the heat dissipation semi-finished product are 2 millimeters.The step can be before and after step S211-S213
Or intermediate any position.Specifically, the specific heat capacity of radiator structure made by the wall thickness is preferable, weight is also relatively light, balanced can dissipate
Hot merit effect and weight, can be used for onboard system, and when the radiator structure is applied to onboard system, which can be made into heat dissipation
Center, specific experiment data are as shown in table 2.
S215, according to preset size, the size of the heat dissipation semi-finished product is adjusted, specifically, to the heat dissipation
Semi-finished product carry out sawing, and do deburring processing, and in order to improve precision, sawing can be carried out on numerically-controlled machine tool.Wherein, sawing
When need to reserve 0.5 millimeter of length, using as machining allowance.
S216, the grease for removing the aluminium oxide layers surface.Specifically, lye can be used to wash away the grease.
S217, the aluminium oxide layers for removing the heat dissipation semi-finished product, and make the surface active of the heat dissipation semi-finished product.Specifically
, the aluminium oxide layers of the heat dissipation semi-finished product can be removed with acid solution, and make the surface active of the heat dissipation semi-finished product.
S218, connecting hole is opened up on the surface of the heat dissipation semi-finished product.In the present embodiment, the connecting hole is nano-pore
Hole, the acid solution in step S217 can continue on for opening up nano aperture, and the acid solution makes the surface of the hot semi-finished product form one
It is similar to the structure of " coral reef ", the hole in the structure is nano aperture.
S219, the heat dissipation semi-finished product are placed in injection mold, in radiator semi-finished product surface injection molding carbon modeling
Alloy makes the carbon-plastic alloy enter the connecting hole.Wherein, which can be bakelite injection mold；Carbon-plastic alloy
It is a kind of graphene high-heat-conductive composite material, is combined by graphene and high molecular material, with light weight, fire-retardant, heat-resisting,
Weather resistance is excellent, material thermal expansion coefficient and the low feature of molding shrinkage, at the same have with the comparable heat dissipation effect of aluminium, can
Heat source is quickly exported to and is radiated extraneous medium, alternative aluminium is in all kinds of cooling fins, radiator.Specifically, may be used also
The surface of the carbon-plastic alloy is set to form multiple installation positions that can be used for installation fins.
S220, cooling and solidifying form radiator structure.Wherein, pass through and connect on the carbon-plastic alloy after solidification and heat dissipation semi-finished product
Hole, which is realized, to be combined.
Table 2:
Core I C R-CarM3 radiator test condition:
Operating temperature: 25 DEG C of room temperature；Power amplifier: AMP thermal losses power 3.9W；Core I C: 60% power of utilization rate:
11.07W。
Wherein, as vehicle-mounted middle control entertainment systems function becomes increasingly complex, car networking, the arrival of automatic Pilot technology, in
The thermal losses power for controlling entertainment systems core chips is continuously improved, and the operating temperature of host also increases accordingly.It is in operating temperature
In the environment of 85 DEG C, the temperature rise of host only has 20 DEG C to 40 DEG C, and host radiator structure is all using metal material in current industry
Matter, host weight ratio are heavier.In order to reduce core chips periphery DDR (DDR SDRAM, full name Double Data Rate
SDRAM, Double Data Rate synchronous DRAM) temperature, hardware spreader surface needs to increase anodic oxidation, increases hot spoke
Coefficient is penetrated, this process contamination environment is at high cost.Heat sink conception one squeezes 6063 material anodic oxidation of aluminium to use, while thermally conductive
Silica gel composition heat dissipation；SOC is middle control entertainment systems core chips；EMMC is control unit；DDR is storage unit；PMU-1 and
PMU-2 is Power Management Unit.
When the production method of radiator structure in the present embodiment is applied to onboard system, compared to heat sink conception one, it can subtract
Light 45% weight, realizes light-weight design；It does not need using anode oxidation process, it is possible to reduce environmental pollution；Meanwhile heat
Radiation coefficient can be improved to 0.8 or more；And since technique is compared with simple, cost of manufacture can effectively reduce.
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art,
It is still possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is carried out etc.
With replacement, all within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in this
Within the protection scope of invention.
Claims (10)
1. a kind of production method of radiator structure, which comprises the following steps:
The molten aluminum is sent into extrusion die and carries out squeezing aluminium, forms heat dissipation semi-finished product；
Connecting hole is opened up on the surface of the heat dissipation semi-finished product；
The heat dissipation semi-finished product are placed in injection mold, carbon-plastic alloy is molded on the radiator semi-finished product surface, makes institute
Carbon-plastic alloy is stated into the connecting hole；
Cooling and solidifying forms radiator structure.
2. the production method of radiator structure according to claim 1, which is characterized in that forming the step of radiating semi-finished product
Afterwards, the heat dissipation semi-finished product are straightened.
3. the production method of radiator structure according to claim 2, which is characterized in that the heat dissipation semi-finished product are being straightened
After step, according to preset size, the size of the heat dissipation semi-finished product is adjusted.
4. the production method of radiator structure according to claim 3, which is characterized in that according to preset size, to institute
Before the size the step of being adjusted for stating heat dissipation semi-finished product, the wall thickness for presetting the heat dissipation semi-finished product is 3 millimeters.
5. the production method of radiator structure according to claim 4, which is characterized in that according to preset size, to institute
In the size the step of being adjusted for stating heat dissipation semi-finished product, to heat dissipation semi-finished product progress sawing, and deburring processing is done.
6. the production method of radiator structure according to claim 1, which is characterized in that in the table in the heat dissipation semi-finished product
Before face opens up the step of connecting hole, the aluminium oxide layers of the heat dissipation semi-finished product are removed, and keep the surface of the heat dissipation semi-finished product living
Change.
7. the production method of radiator structure according to claim 6, which is characterized in that removing the heat dissipation semi-finished product
Aluminium oxide layers, and before the step of making the surface active of the heat dissipation semi-finished product, remove the grease on the aluminium oxide layers surface.
8. the production method of radiator structure according to claim 6, which is characterized in that the molten aluminum is being sent into extrusion die
Before the step of carrying out squeezing aluminium in tool, forming heat dissipation semi-finished product, by aluminium ingot founding, molten aluminum is formed.
9. the production method of radiator structure according to claim 1, which is characterized in that in the table in the heat dissipation semi-finished product
Face opened up in the step of connecting hole, and the connecting hole is nano aperture.
10. the production method of radiator structure according to claim 1, which is characterized in that put by the heat dissipation semi-finished product
It sets in injection mold, is molded carbon-plastic alloy on the radiator semi-finished product surface, the carbon-plastic alloy is made to enter the connection
Kong Zhong makes the surface of the carbon-plastic alloy form multiple installation positions that can be used for installation fins.
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Application publication date: 20191025 |