CN110303134A - Fine aluminium manufacturing method of heat radiator - Google Patents
Fine aluminium manufacturing method of heat radiator Download PDFInfo
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- CN110303134A CN110303134A CN201910287043.5A CN201910287043A CN110303134A CN 110303134 A CN110303134 A CN 110303134A CN 201910287043 A CN201910287043 A CN 201910287043A CN 110303134 A CN110303134 A CN 110303134A
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- mold
- fine aluminium
- feed inlet
- machining method
- aluminium radiator
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- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 111
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 111
- 239000004411 aluminium Substances 0.000 title claims abstract description 76
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 47
- 238000004512 die casting Methods 0.000 claims abstract description 23
- 239000000463 material Substances 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 21
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 15
- 239000010959 steel Substances 0.000 claims abstract description 15
- 238000010926 purge Methods 0.000 claims abstract description 9
- 238000009434 installation Methods 0.000 claims abstract description 6
- 239000002699 waste material Substances 0.000 claims abstract description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 25
- 238000003754 machining Methods 0.000 claims description 14
- 238000002347 injection Methods 0.000 claims description 13
- 239000007924 injection Substances 0.000 claims description 13
- 239000000243 solution Substances 0.000 claims description 6
- 238000000465 moulding Methods 0.000 abstract description 9
- 230000017525 heat dissipation Effects 0.000 abstract description 5
- 230000002708 enhancing effect Effects 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 18
- 238000010791 quenching Methods 0.000 description 4
- 230000000171 quenching effect Effects 0.000 description 4
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- 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
- B22D17/2209—Selection of die materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D21/00—Casting non-ferrous metals or metallic compounds so far as their metallurgical properties are of importance for the casting procedure; Selection of compositions therefor
- B22D21/02—Casting exceedingly oxidisable non-ferrous metals, e.g. in inert atmosphere
- B22D21/04—Casting aluminium or magnesium
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The present invention relates to a kind of metal works mold moulding manufacture method, especially a kind of fine aluminium manufacturing method of heat radiator.This method comprises the following steps: S1, aluminium ingot fusing；S2, manufacture mold: it is greater than the steel of 55HRC, tolerance high temperature greater than 800 DEG C using hardness and manufactures mold；The inner surface finish of mold is polished to 2 μm or less after being made；And the feed inlet of mold is made to be set as the maximum sized 1/3-2/3 of feed side corresponding product, the bed drain purge of waste discharge material mouth is the 35-50% of product weight；S3, installation mold；S4, die cast；S5, demoulding.The present invention avoids fusing between the aluminum water of fine aluminium and steel die from two main aspects of enhancing of the characteristic changing of mold, aluminum water mobility, it is formed in mould to solve the problems, such as that fine aluminium product cannot carry out in die casting machine, so that being achieved by the radiator that fine aluminium manufactures labyrinth, the heat dissipation that existing radiator can be greatly improved improves the service life of heater.
Description
Technical field
The present invention relates to a kind of metal works mold moulding manufacture method, especially a kind of fine aluminium manufacturing method of heat radiator.
Background technique
Aluminium Radiator is widely used in the fields such as LED lamp, circuit board chip cooling.Since fine aluminium has mobility
Difference is not easy to the characteristic of mold processing and forming, so most radiator is all ADC12 aluminium alloy heat radiator on the market, by
In being added to the materials such as silicon, zinc, magnesium, manganese, the mobility of ADC12 aluminium alloy is preferable, can by mold machine-shaping be with
The radiator of the radiating fin of various patterns increases heat dissipation effect, but in general, ADC12 aluminium alloy and heat dissipation performance phase
Than being had a certain difference for fine aluminium, for the radiator of equivalent specifications structure and Same Efficieney pyrotoxin, no matter from
The temperature on pyrotoxin surface or the temperature of spreader surface, fine aluminium radiator will be lower than ADC12 aluminium alloy heat radiator, with
For the LED light source chip of 35w, when using aluminium alloy heat radiator, the temperature at chip is more than 100 DEG C, spreader surface temperature
12-25 DEG C lower than temperature at chip is not equal (different according to radiator shape and position), and when using fine aluminium radiator, temperature at chip
Degree is 85-90 DEG C, and spreader surface temperature is 3-8 DEG C lower than temperature at chip, from the above data, it can be seen that using ADC12 aluminium
When alloy heat-sink device, to form that heat dissipation is unsmooth, and the fever of LED chip can be in chip since thermal coefficient difference and radiating efficiency mismatch
Place's accumulation, keeps the temperature at chip higher, and according to experimental data, temperature is every to increase 5 DEG C, the reduced service life one of chip
Half.Above-mentioned data can more be confirmed for the measurement of thermally conductive data, the thermal coefficient of ADC12 aluminium alloy (die casting aluminium) 100 with
Under, and the thermal coefficient of fine aluminium, 210 or more, to find out its cause, being mainly doped with the materials such as silicon in aluminium alloy, these materials have
Help improve the mobility of aluminium alloy, but significantly reduces its thermal conductivity.
In existing Aluminium Radiator field, the reason of for fear of fine aluminium poor fluidity, even if understanding aluminium alloy and fine aluminium
Thermal conductivity difference can not also substitute aluminium alloy to be molded the complicated radiator of manufacture, because of flowing with fine aluminium
Property difference fine aluminium when carrying out mold molding aluminum water it is very strong with the fusion character of mold just now, be easy to stick on mold, cause nothing
The problem of method demoulds, therefore existing fine aluminium radiator is typically limited to only the simple structure of cold moudling, does not adapt to LED chip
With the use of extensive computation chip.
Summary of the invention
The present invention provides a kind of characteristic that can overcome fine aluminium water flowing difference, realizes the formed in mould of fine aluminium radiator
Fine aluminium radiator machining method.
This method comprises the following steps:
S1, aluminium ingot fusing: fine aluminium ingot is fused into aluminum water；
S2, manufacture mold: it is greater than the steel of 55HRC, tolerance high temperature greater than 800 DEG C using hardness and manufactures mold；After being made
The inner surface finish of mold is polished to 2 μm or less；And the feed inlet of mold is made to be set as the maximum of feed side corresponding product
The 1/3-2/3 of size, the bed drain purge of waste discharge material mouth are the 35-50% of product weight；
S3, installation mold: mold manufactured in S2 step is installed in die casting machine；
S4, die cast: aluminum water is injected into mold by die casting machine, is cooled and shaped as fine aluminium radiator；
S5, demoulding: injection release agent makes fine aluminium radiator break away from moulds.
Preferably, in the step S1, fine aluminium content is used to melt at a temperature of 750 DEG C for 99% or more original aluminium ingot
It is stand-by to be melted into aluminum water.
Preferably, it is 8407 steel that the hardness, which is greater than the steel of 55HRC, tolerance high temperature greater than 800 DEG C,.
Preferably, the feed inlet is set as the maximum sized 1/3-2/3 of feed side corresponding product specifically: when into
When the corresponding section of feed side where material mouth is round, the size of feed inlet is the 1/3-2/3 of the round diameter.
Preferably, the feed inlet is set as the maximum sized 1/3-2/3 of feed side corresponding product specifically: when into
The corresponding section of feed side where material mouth is square or when rectangle, and the size of feed inlet is the broadside of the square or rectangle
1/3-2/3.
Preferably, the feed inlet is set as the maximum sized 1/3-2/3 of feed side corresponding product specifically: when into
When the corresponding section of feed side where material mouth is abnormity, the size of feed inlet is two points of lie farthest away on the abnormity edge
Wire length 1/3-2/3.
Preferably, the die casting machine is cold-chamber die casting machine.
Preferably, in the step S4, pressure when aluminum water to be injected to mold is 90-130MPa.
Preferably, in the step S5, the release agent is the solution of release agent material and water, the release agent
Middle release agent material and the component ratio of water are by weight 1 to compare 10-20.
Fine aluminium radiator machining method of the invention is mainly square from the characteristic changing of mold, the enhancing two of aluminum water mobility
Face avoids fusing between the aluminum water of fine aluminium and steel die, solve fine aluminium product cannot be carried out in die casting machine mold at
The problem of type, can greatly improve dissipating for existing radiator so that being achieved by the radiator that fine aluminium manufactures labyrinth
Thermal efficiency improves the service life of heater.
Specific embodiment
The present invention is directed to act on achieving the purpose that the molding of fine aluminium mold and smoothly demoulding simultaneously by two approach: the
One, increase the mobility of aluminum water, make its quick full filling die cavity, avoids the defects of generating stomata, husky hole on product；The
Two, increase the hardness and finish (reduce roughness) of mold, avoid product and mold stick together and caused by cannot demould
The problem of.Detailed process flow is illustrated below by way of three embodiments.
Fine aluminium radiator machining method in first embodiment includes the following steps:
S1, aluminium ingot fusing: fine aluminium ingot is fused into aluminum water；
S2, manufacture mold: it is greater than 55HRC, tolerance high temperature using hardness and nitrogenizes stiffened by quenching the latter greater than 800 DEG C
8047 steel manufacture mold；The inner surface finish of mold is polished to 2 μm after being made；And it is set as the feed inlet of mold
The maximum sized 1/3-2/3 of feed side corresponding product, bed drain purge account for the 30-50% of product total weight；
S3, installation mold: mold manufactured in S2 step is installed in die casting machine；
S4, die cast: aluminum water is injected into mold by die casting machine, is cooled and shaped as fine aluminium radiator；
S5, demoulding: injection release agent makes fine aluminium radiator break away from moulds.
In the present embodiment, in the step S1, using fine aluminium content is 99% or more original aluminium ingot in 750 DEG C of temperature
It is stand-by that aluminum water is fused under degree.
First main purpose of the present embodiment is the mobility of raising aluminum water to reach molding requirement, it is desirable that aluminum water is filled
In the chamber of the filling mold divided, the scheme mainly used when improving mobility is to increase the size of feed inlet, and exhaust is arranged
The size of waste port, at the time of molding, the size of feed inlet is generally the 1/5 of feed side corresponding product to previous ADC12 aluminium alloy,
Total bed drain purge of slag-drip opening is no more than the 10-20% of product total weight, so charging and row in the technical solution of the present embodiment
In comparison, size both increases one times or more for slag parameter and ADC12 aluminium alloy.By significantly increasing feed gap dimension and row
The waste discharge doses of cinder notch, can make aluminum water largely pass through mold, and full filled chamber avoids making because of poor fluidity
At product defects, when actual production, deslagging deficiency will cause that product surface is not full, and there are husky hole, bubble and water waves；Deslagging
There is husky hole and bubble in the excessive interiors of products that will cause again, influence the heat dissipation performance of product.Bed drain purge is arranged by slag-drip opening,
By configure slag-drip opening bore and quantity by total bed drain purge control 30%, do not limit the specific size and quantity of slag-drip opening,
The specific size and quantity of slag-drip opening can be arranged in those skilled in the art according to mold shape and size.
Second main purpose of the present embodiment is that product mold molding can be demoulded smoothly later, if cannot take off
Mould allows to Forming Quality product up to standard also and can stick together during demoulding with mold tearing and damaged
It is bad, thus molding control and demoulding control take care that neither is overemphasized to the neglect of the other, in the present embodiment first by the hardness of mold, heat-resisting quantity with
And finish (reduce roughness) several aspects solve the problems, such as demoulding.I.e. hardness is greater than 55HRC, tolerance high temperature is greater than 800
DEG C, finish be polished to 2 μm.
In the present embodiment, the feed inlet is set as maximum sized the 1/3 of feed side corresponding product specifically: when into
When the corresponding section of feed side where material mouth is round, the size of feed inlet is the one third of the round diameter；Work as charging
The corresponding section of feed side where mouthful is square or when rectangle, and the size of feed inlet is the broadside of the square or rectangle
One third；When the corresponding section of the feed side where feed inlet is abnormity, the size of feed inlet is phase on the abnormity edge
The one third of wire length away from two farthest points.
In the present embodiment, the die casting machine is cold-chamber die casting machine.
In order to further increase the mobility of aluminum water, in the present embodiment, in the step S4, when aluminum water is injected mold
Pressure compared with normal pressure 90MPa.Injection pressure compared to ADC12 aluminium alloy increases 30%.Logical excessive pressure injection improves
The mobility of aluminum water.
In the present embodiment, in the step S5, the release agent is the solution of release agent material and water, and described is de-
Release agent material and the component ratio of water are 1:10 by weight in mould agent.The demoulding in demoulding of existing ADC12 aluminium alloy
Machine matches 1:60-120, it is seen then that the concentration of ingot stripper used in the present embodiment greatly improves, and auxiliary solves fine aluminium demoulding and asks
Topic.
The fine aluminium radiator machining method of the second embodiment of the present invention includes the following steps:
S1, aluminium ingot fusing: fine aluminium ingot is fused into aluminum water；
Aluminium ingot used in this step is original aluminium ingot of the aluminium content 99% or more, with 750 DEG C or so in melting furnace
It is temperature melting stand-by at aluminum water.The temperature of melting furnace at this time is 100 DEG C ± 20 DEG C high compared to the fusion temperature of aluminium alloy.
S2, manufacture mold: using hardness be 55HRC, tolerance high temperature is 800 DEG C by quenching the latter's nitridation stiffened
8047 steel manufacture mold；The inner surface finish of mold is polished to 2 μm after being made；And make the feed inlet of mold be set as into
Expect maximum sized the 2/3 of side corresponding product, bed drain purge accounts for the 50% of product total weight；It the use of hardness is 55HRC, tolerance high temperature
Mold is manufactured for 800 DEG C of 8047 steel for nitrogenizing stiffened by quenching the latter；The inner surface finish of mold is beaten after being made
1 μm is ground to be mainly used for solving the problems, such as die hardness and finish.
Step S2 is independently of the step of radiator product production flow, is the manufacture mold of the shape according to needed for radiator
Step, in this step
S3, installation mold: mold manufactured in S2 step is installed in die casting machine；
S4, die cast: aluminum water is injected into mold by die casting machine, is cooled and shaped as fine aluminium radiator；
S5, demoulding: injection release agent makes fine aluminium radiator break away from moulds.
In the present embodiment, in the step S1, using fine aluminium content is 99% or more original aluminium ingot in 750 DEG C of temperature
It is stand-by that aluminum water is fused under degree.
In the present embodiment, the feed inlet is set as maximum sized the 2/3 of feed side corresponding product specifically: when into
When the corresponding section of feed side where material mouth is round, the size of feed inlet is the 2/3 of the round diameter.
In the present embodiment, the feed inlet is set as maximum sized the 2/3 of feed side corresponding product specifically: when into
The corresponding section of feed side where material mouth is square or when rectangle, and the size of feed inlet is the broadside of the square or rectangle
2/3.
In the present embodiment, the maximum sized 1/3-2/3 that the feed inlet is set as feed side corresponding product is specific
Are as follows: when the corresponding section of the feed side where feed inlet is abnormity, the size of feed inlet is lie farthest away on the abnormity edge
Two points wire length 2/3.
In the present embodiment, the die casting machine is cold-chamber die casting machine.
In the present embodiment, in the step S4, pressure when by aluminum water injection mold is compared with normal pressure 130MPa.Phase
Injection pressure than ADC aluminium alloy increases 30%.Logical excessive pressure injection improves the mobility of aluminum water.
In the present embodiment, in the step S5, the release agent is the solution of release agent material and water, and described is de-
Release agent material and the component ratio of water are by weight 1 to 20 in mould agent.
Fine aluminium radiator machining method in 3rd embodiment includes the following steps:
S1, aluminium ingot fusing: fine aluminium ingot is fused into aluminum water；
S2, manufacture mold: it is greater than 55HRC, tolerance high temperature using hardness and nitrogenizes stiffened by quenching the latter greater than 800 DEG C
8047 steel manufacture mold；The inner surface finish of mold is polished to 0.5 μm after being made；And set the feed inlet of mold
It is set to maximum sized the 1/2 of feed side corresponding product, bed drain purge accounts for the 40% of product total weight；
S3, installation mold: mold manufactured in S2 step is installed in die casting machine；
S4, die cast: aluminum water is injected into mold by die casting machine, is cooled and shaped as fine aluminium radiator；
S5, demoulding: injection release agent makes fine aluminium radiator break away from moulds.
In the present embodiment, in the step S1, using fine aluminium content is 99% or more original aluminium ingot in 750 DEG C of temperature
It is stand-by that aluminum water is fused under degree.
The main purpose of the present embodiment is the mobility of raising aluminum water to reach molding requirement, the master when improving mobility
The scheme to be used is to increase the size of feed inlet, and be vented the size of waste discharge material mouth, in comparison with ADC12 aluminium alloy, ruler
It is very little to both increase one times or more.
In the present embodiment, it is 8407 steel that the hardness, which is greater than the steel of 55HRC, tolerance high temperature greater than 800 DEG C,.
In the present embodiment, the feed inlet is set as maximum sized the 1/2 of feed side corresponding product, specifically: when
When the corresponding section of feed side where feed inlet is round, the size of feed inlet is the 1/2 of the round diameter.
In the present embodiment, the feed inlet is set as maximum sized the 1/2 of feed side corresponding product, specifically: when
The corresponding section of feed side where feed inlet is square or when rectangle, and the size of feed inlet is the width of the square or rectangle
The 1/2 of side.
In the present embodiment, the feed inlet is set as maximum sized the 1/2 of feed side corresponding product, specifically: when
When the corresponding section of feed side where feed inlet is abnormity, the size of feed inlet is two of lie farthest away on the abnormity edge
The 1/2 of the wire length of point.
In the present embodiment, the die casting machine is cold-chamber die casting machine.
In the present embodiment, in the step S4, pressure when by aluminum water injection mold is compared with normal pressure 100MPa.Phase
Injection pressure than ADC aluminium alloy increases 30%.Logical excessive pressure injection improves the mobility of aluminum water.
In the present embodiment, in the step S5, the release agent is the solution of release agent material and water, and described is de-
Release agent material and the component ratio of water are by weight 1 to 15 in mould agent.
The purpose of specific value setting in second and third embodiments is identical with the first embodiment, and numerical value change is because of reality
The specification of product is different and difference, for example, product is smaller, in demoulding easier demoulding smaller with the contact surface of mold
At this point it is possible to relax parameter setting, biggish value is selected, and product is bigger, it is bigger with the contact surface of the chamber of mold, it is more difficult to take off
Mould can according to need in actual production so needing to select thinner finish, the ingot stripper relatively done etc. and carry out parameter change
Change.
The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all utilizations
Equivalent structure or equivalent flow shift made by present specification is applied directly or indirectly in other relevant technologies
Field is included within the scope of the present invention.
Claims (9)
1. fine aluminium radiator machining method, which comprises the steps of:
S1, aluminium ingot fusing: fine aluminium ingot is fused into aluminum water；
S2, manufacture mold: it is greater than the steel of 55HRC, tolerance high temperature greater than 800 DEG C using hardness and manufactures mold；By mould after being made
The inner surface finish of tool is polished to 2 μm or less；And the feed inlet of mold is made to be set as the full-size of feed side corresponding product
1/3-2/3, the bed drain purge of waste discharge material mouth is the 35-50% of product weight；
S3, installation mold: mold manufactured in S2 step is installed in die casting machine；
S4, die cast: aluminum water is injected into mold by die casting machine, is cooled and shaped as fine aluminium radiator；
S5, demoulding: injection release agent makes fine aluminium radiator break away from moulds.
2. fine aluminium radiator machining method as described in claim 1, it is characterised in that: in the step S1, using fine aluminium
It is stand-by that the original aluminium ingot that content is 99% or more is fused into aluminum water at a temperature of 750 DEG C.
3. fine aluminium radiator machining method as described in claim 1, it is characterised in that: hardness is greater than in the step 1
The steel of 55HRC, tolerance high temperature greater than 800 DEG C are 8407 steel.
4. fine aluminium radiator machining method as described in claim 1, it is characterised in that: the feed inlet is set as feed side
The maximum sized 1/3-2/3 of corresponding product specifically: when the corresponding section of the feed side where feed inlet is round, charging
The size of mouth is the 1/3-2/3 of the round diameter.
5. fine aluminium radiator machining method as described in claim 1, it is characterised in that: the feed inlet is set as feed side
The maximum sized 1/3-2/3 of corresponding product specifically: when the corresponding section of feed side where feed inlet is square or square
When shape, the size of feed inlet is the 1/3-2/3 of the broadside of the square or rectangle.
6. fine aluminium radiator machining method as described in claim 1, it is characterised in that: the feed inlet is set as feed side
The maximum sized 1/3-2/3 of corresponding product specifically: when the corresponding section of the feed side where feed inlet is abnormity, charging
The size of mouth is the 1/3-2/3 of the wire length of two points of lie farthest away on the abnormity edge.
7. fine aluminium radiator machining method as described in claim 1, it is characterised in that: the die casting machine is cold chamber die casting
Machine.
8. fine aluminium radiator machining method as described in claim 1, it is characterised in that: in the step S4, aluminum water is infused
Pressure when entering mold is 90-130MPa.
9. fine aluminium radiator machining method as described in claim 1, it is characterised in that: in the step S5, described is de-
Mould agent is the solution of release agent material and water, and release agent material and the component ratio of water are by weight 1 ratio in the release agent
10-20。
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| CN201910287043.5A CN110303134A (en) | 2019-04-11 | 2019-04-11 | Fine aluminium manufacturing method of heat radiator |
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| CN201910287043.5A CN110303134A (en) | 2019-04-11 | 2019-04-11 | Fine aluminium manufacturing method of heat radiator |
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