CN109848651A - The preparation method of aluminum vehicle wiper actuating arm - Google Patents
The preparation method of aluminum vehicle wiper actuating arm Download PDFInfo
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- CN109848651A CN109848651A CN201910113006.2A CN201910113006A CN109848651A CN 109848651 A CN109848651 A CN 109848651A CN 201910113006 A CN201910113006 A CN 201910113006A CN 109848651 A CN109848651 A CN 109848651A
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Abstract
The invention discloses a kind of preparation methods of aluminum vehicle wiper actuating arm, comprising: this preparation step and to ontology carry out surface treatment step.By being added into suitable rare earth element, hardness, the toughness of product are increased, material cost is reduced.By optimizing sequence of steps, keep voidage in proembryo few, it is ensured that the stabilization of ontology mechanical property.By using reasonable surface treatment mode, it is ensured that the corrosion resistance of ontology gets a promotion.
Description
Technical field
The present invention relates to automobile parts preparation method technical fields, more particularly, to a kind of aluminum vehicle wiper actuating arm
Preparation method.
Background technique
Currently, continuing to increase with environmentally friendly dynamics, reduces vehicular emission to the greatest extent, it is most commonly seen development
One of direction.For this purpose, be to the greatest extent utmostly automobile loss of weight, it is particularly important.
The wiper actuating arm of automobile is although relatively conventional, but as common one of consumptive material, on high-grade car, wishes
Hope that its weight is further decreased, service life is further extended.
Summary of the invention
The object of the present invention is to provide a kind of preparation method of aluminum vehicle wiper actuating arm, it have make product at
Originally it is effectively controlled, the characteristics of service life is greatly improved.
The technical scheme adopted by the invention is that: the preparation method of aluminum vehicle wiper actuating arm, comprising:
(1) this preparation step:
This preparation step includes:
(1) aluminum alloy materials of production ontology are prepared, with percent weight, which includes: Fe:0.5-
1.0%, Cu:3.0-4.0%, Mn:0.3-0.5%, Mg:0.03-0.1%, Ni:0.3-0.5%, Zn:0.3-0.5%,
Sn:0.1-0.35%, La:0.05-0.08%, surplus is Al and inevitable impurity, and impurity content is not more than 0.6%；
(2) pure Al is placed in smelting furnace and is warming up to 810-830 DEG C, keep the temperature, pure Mg block is pressed in pure Al solution bottom
Portion continues 5-10min and melts completely to pure Mg block, then, while pure Fe, pure Cu, pure Mn, pure Ni, pure Zn added, in 8min
950-1000 DEG C are inside warming up to, La is added, continues 1-2min, then in 10min, be cooled to 710-720 DEG C, and be added
Refining agent carries out refining slagging-off, and the alloy material of melting is poured into mould by the alloy material melted after standing a period of time
Tool, obtains ontology proembryo；
(3) finishing is implemented to proembryo and obtains ontology, and be equipped with several longitudinal holes, through-hole along the center of ontology
Diameter be 2-4mm；
(2) surface treatment step is carried out to ontology；
This carries out surface treatment step to ontology
(1) surface rolling processing is carried out to ontology；
(2) in 150-200 DEG C of environment, using diamond dust impact rolling treated ontology, while impact pair
Ontology carries out laser treatment, wherein the partial size of diamond dust is 0.5-1mm, and used laser power is 30-35kW, electric current
400-500A, pulsewidth 3-4mm, defocusing amount 100-115mm；
(3) to by rolling, treated that ontology cleans, cleaning step include successively carry out pickling, alkali cleaning, neutralization,
Deionized water cleans, dries, ultrasonic cleaning；
(4) ontology after cleaning is carried out seeping nickel processing, the mode of processing is that ontology is embedded in the nitrogen that weight ratio is 1:8
In the mixture for changing nickel and carbon, 360-380 DEG C are heated under 0.5-0.8MPa nitrogen atmosphere, and keep the temperature 0.5-1 hour,
Then ontology is kept to be down to room temperature in the mixture；
(5) nickel plating to seeping nickel treated body surface and carrying out usual manner.
In the step (1) (2), the pouring type for obtaining ontology proembryo is: used mold is energy in up and down direction
The mold enough opened and closed, the sprue gate of the mold are located at the lower part of the mold, by pressure by the alloy material press-in die of melting
In, casting was divided into the next stage: fill the type stage: the time keeps 15-20s, pressure using 0.025 megapascal；Pressurization stages: time
20-30s, pressure are kept to use 0.05 megapascal；Packing stage: the time keeps 60-120s, and pressure uses 0.05 megapascal.
The invention has the advantages that compared with the prior art: so that the cost of product is effectively controlled, service life
It is greatly improved.The preparation method of aluminum vehicle wiper actuating arm of the invention is improved at following three aspect:
1, it is added into suitable rare earth element.By the introducing of rare earth element, further refinement and uniform crystal grain, increase
The hardness of product, toughness；And pass through the content of reasonable definition impurity, reduce material cost.
2, sequence of steps is optimized.In bulk material preparation, Mg is added in advance, and the molecule of Mg and Al is enable to obtain first
It is combined to more thorough, adds other raw materials for constituting alloy later, optimized crystal composition, finally added after heating dilute
Earth elements make the effect of rare earth element obtain maximum release.Compared to common process, use of the present invention in rare earth
In quantity, it is only necessary to avoid to reduce 10 times or more in the usage amount of rare earth using more than one, but making using one kind
It is improved with the addition compared to a variety of rare earth elements.Through actual verification, hardness, the toughness of material at least increase
15%, and through-hole can be set at the middle part of ontology, so that its weight is obtained larger reduction, cost at least reduces 30%.It is being poured
When ontology blank, the mode pressurizeed by using segmentation, and be poured from lower part keeps voidage in proembryo few, it is ensured that this physical strength
Learn the stabilization of performance.
3, service life is longer.By using reasonable surface treatment mode, it is only necessary to carry out primary rolling processing and time
Shorter infiltration nickel, Nickel Plating Treatment, that is, can ensure that the corrosion resistance of ontology gets a promotion, Facing material can be in normal use
Under, increase by 10% service life.It wherein, may shape when preferably eliminating rolling processing by the way of diamond dust impact
At the unbalanced phenomenon of superficial density can be by the silicon and ingredients and the ontology such as silicon in diamond dust and with laser treatment
Surface interaction, keeps laser more preferable to the treatment effect of body surface.Actual verification is hit compared to single using diamond dust
It beats or single by the way of laser treatment, the surface hardness, wearability, anti-corrosive properties of material is made to get a promotion.
Specific embodiment
Embodiment, the preparation method of aluminum vehicle wiper actuating arm, comprising: (one) this preparation step and (two) are to this
Body carries out surface treatment step.
(1) this preparation step includes:
(1) aluminum alloy materials of production ontology are prepared.With percent weight, which includes: Fe:0.5-
1.0%, Cu:3.0-4.0%, Mn:0.3-0.5%, Mg:0.03-0.1%, Ni:0.3-0.5%, Zn:0.3-0.5%,
Sn:0.1-0.35%, La:0.05-0.08%, surplus is Al and inevitable impurity, and impurity content is not more than 0.6%.
Specifically it may is that
With percent weight, which includes: Fe:0.5%, Cu:3.0%, Mn:0.3%, Mg:0.03%,
Ni:0.3%, Zn:0.3%, Sn:0.1%, La:0.05%, surplus is Al and inevitable impurity, and impurity content is
0.6%.
Alternatively, the aluminum alloy materials include: Fe:0.7%, Cu:3.4%, Mn:0.4%, Mg with percent weight:
0.06%, Ni:0.4%, Zn:0.4%, Sn:0.25%, La:0.06%, surplus are Al and inevitable impurity, and impurity
Content is 0.4%.
Alternatively, the aluminum alloy materials include: Fe:1.0%, Cu:4.0%, Mn:0.5%, Mg with percent weight:
0.1%, Ni:0.5%, Zn:0.5%, Sn:0.35%, La:0.08%, surplus is Al and inevitable impurity, and impurity contains
Amount is 0.3%.
(2) pure Al is placed in smelting furnace and is warming up to 810-830 DEG C, for example, 810 DEG C or 820 DEG C or 830 DEG C are warming up to,
Keep the temperature.Pure Mg block is pressed in pure Al solution bottom, continues 5-10min and melts completely to pure Mg block, for example, continuing
5min, 8min or 10min.Pure Mg block should be small as far as possible, but partial size is no less than 10mm.Then, while pure Fe, pure is added
Cu, pure Mn, pure Ni, pure Zn.Later, it is warming up to 950-1000 DEG C in 8min, adds La, continues 1-2min.For example, with
5min is warming up to 950 DEG C, adds La, continues 1min；Alternatively, being warming up to 980 DEG C with 6min, La is added, continues 1.5min；Or
Person is warming up to 1000 DEG C with 8min, adds La, continues 2min.Heating rate should be linearly increasing, experiments have shown that linearly increasing energy
End properties are enough made to obtain certain promotion.Then in 10min, 710-720 DEG C are cooled to, and refining agent is added and carries out essence
The alloy material of melting is poured into mold by refining slagging-off, the alloy material melted after standing a period of time, obtains ontology original
Embryo.For example, being cooled to 720 DEG C with 10min；Alternatively, being cooled to 715 DEG C with 8min；Alternatively, being cooled to 710 DEG C with 6min.Experiment
Prove, cooling rate is faster, end properties more preferably, so preferably in such a way that 6min is cooled to 710 DEG C.
(3) finishing is implemented to proembryo and obtains ontology, and be equipped with several longitudinal holes, through-hole along the center of ontology
Diameter be 2-4mm, for example, through-hole diameter be 2,3 or 4mm.Finishing passes may include the routine such as cutting, drilling, digging milling
Process.Wherein, the direction of through-hole is along the longitudinal direction of ontology, and through-hole should not influence following rolling processing.
(2) this includes: to ontology progress surface treatment step
(1) surface rolling processing is carried out to ontology.It is formed by the depth that decorative pattern is preferably provided with 0.3-0.5.
(2) in 150-200 DEG C of environment, using diamond dust impact rolling treated ontology, while impact pair
Ontology carries out laser treatment, wherein the partial size of diamond dust is 0.5-1mm, and used laser power is 30-35kW, electric current
400-500A, pulsewidth 3-4mm, defocusing amount 100-115mm.For example, in 150 DEG C of environment, at diamond dust impact rolling
Ontology after reason, the partial size of diamond dust are 0.5mm, and used laser power is 30kW, electric current 400A, pulsewidth 3mm, defocusing amount
100mm；Alternatively, in 180 DEG C of environment, using diamond dust impact rolling treated ontology, the partial size of diamond dust is
0.8mm, used laser power are 32kW, electric current 450A, pulsewidth 3.5mm, defocusing amount 110mm；In 200 DEG C of environment,
Using diamond dust impact rolling treated ontology, the partial size of diamond dust is 1mm, and used laser power is 35kW, electric current
500A, pulsewidth 4mm, defocusing amount 115mm.
(3) to by rolling, treated that ontology cleans, cleaning step include successively carry out pickling, alkali cleaning, neutralization,
Deionized water cleans, dries, ultrasonic cleaning.Processing mode is same as normal method, repeats no more.
(4) ontology after cleaning is carried out seeping nickel processing, the mode of processing is that ontology is embedded in the nitrogen that weight ratio is 1:8
In the mixture for changing nickel and carbon, 360-380 DEG C are heated under 0.5-0.8MPa nitrogen atmosphere, and keep the temperature 0.5-1 hour,
Then ontology is kept to be down to room temperature in the mixture.For example, being heated to 360 DEG C under 0.5MPa nitrogen atmosphere, and it is small to keep the temperature 0.5
When；Alternatively, being heated to 370 DEG C under 0.56MPa nitrogen atmosphere, and keep the temperature 06 hour；Alternatively, adding under 0.8MPa nitrogen atmosphere
Heat keeps the temperature 1 hour to 380 DEG C.
(5) nickel plating to seeping nickel treated body surface and carrying out usual manner.
Optimization:
In abovementioned steps (one) (2), the pouring type for obtaining ontology proembryo is: used mold is energy in up and down direction
The mold enough opened and closed, the sprue gate of the mold are located at the lower part of the mold, by pressure by the alloy material press-in die of melting
In.Casting was divided into the next stage: fill the type stage: the time keeps 15-20s, pressure using 0.025 megapascal；Pressurization stages: time
20-30s, pressure are kept to use 0.05 megapascal；Packing stage: the time keeps 60-120s, and pressure uses 0.05 megapascal.For example,
Fill the type stage: the time keeps 15s, pressure using 0.025 megapascal；Pressurization stages: the time keeps 20s, pressure to use 0.05 megapascal；
Packing stage: the time keeps 60s, and pressure uses 0.05 megapascal；Alternatively, filling the type stage: the time keeps 18s, pressure to use 0.025
Megapascal；Pressurization stages: the time keeps 25s, pressure to use 0.05 megapascal；Packing stage: the time keeps 90s, and pressure uses 0.05
Megapascal；Alternatively, filling the type stage: the time keeps 20s, pressure to use 0.025 megapascal；Pressurization stages: the time keeps 30s, pressure to adopt
With 0.05 megapascal；Packing stage: the time keeps 120s, and pressure uses 0.05 megapascal.Compared to common mode, due to raw material at
To divide after adjustment, the mobility of the alloy material of melting has obtained a degree of improvement, so the time in each stage can
Properly increase, it is ensured that finished product various pieces it is uniform, and voidage has obtained very big reduction.
Vehicle wiper actuating arm manufactured in the present embodiment, for the actuating arms such as common irony, weight can
It reduces by 40-60%, surface and is able to ascend 8% or so；Compared to similar alloy product, cost can reduce 30-35%；Make
It can be obtained 2,000,000 time or more with number, and substantially without deformation；It is tested, irony and is had using identical Accelerated corrosion
After corrosion phenomena occurs in the actuating arm of zinc coat, actuating arm of the invention does not occur corrosion phenomena.
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 (2)
1. the preparation method of aluminum vehicle wiper actuating arm, comprising:
(1) this preparation step:
This preparation step includes:
(1) aluminum alloy materials of production ontology are prepared, with percent weight, which includes: Fe:0.5-1.0%,
Cu:3.0-4.0%, Mn:0.3-0.5%, Mg:0.03-0.1%, Ni:0.3-0.5%, Zn:0.3-0.5%, Sn:
0.1-0.35%, La:0.05-0.08%, surplus is Al and inevitable impurity, and impurity content is not more than 0.6%；
(2) pure Al is placed in smelting furnace and is warming up to 810-830 DEG C, keep the temperature, pure Mg block is pressed in pure Al solution bottom,
Continue 5-10min to melt completely to pure Mg block, then, while adding pure Fe, pure Cu, pure Mn, pure Ni, pure Zn, risen in 8min
Temperature adds La, continues 1-2min, then in 10min, be cooled to 710-720 DEG C, and refining is added to 950-1000 DEG C
Agent carries out refining slagging-off, and the alloy material of melting is poured into mold, obtained by the alloy material melted after standing a period of time
To ontology proembryo；
(3) finishing is implemented to proembryo and obtains ontology, and be equipped with several longitudinal holes along the center of ontology, through-hole it is straight
Diameter is 2-4mm；
(2) surface treatment step is carried out to ontology；
This carries out surface treatment step to ontology
(1) surface rolling processing is carried out to ontology；
(2) in 150-200 DEG C of environment, using diamond dust impact rolling treated ontology, to ontology while impact
Carry out laser treatment, wherein the partial size of diamond dust is 0.5-1mm, and used laser power is 30-35kW, electric current 400-
500A, pulsewidth 3-4mm, defocusing amount 100-115mm；
(3) to by rolling, treated that ontology cleans, cleaning step include successively carry out pickling, alkali cleaning, neutralize, go from
Sub- water cleans, dries, ultrasonic cleaning；
(4) ontology after cleaning is carried out seeping nickel processing, the mode of processing is that ontology is embedded in the nickel oxide that weight ratio is 1:8
In the mixture of carbon, 360-380 DEG C are heated under 0.5-0.8MPa nitrogen atmosphere, and keep the temperature 0.5-1 hour, then
Ontology is kept to be down to room temperature in the mixture；
(5) nickel plating to seeping nickel treated body surface and carrying out usual manner.
2. the preparation method of aluminum vehicle wiper actuating arm according to claim 1, it is characterised in that: the step
(1) in (2), the pouring type for obtaining ontology proembryo is: used mold is the mold that can be opened and closed in up and down direction, should
The sprue gate of mold is located at the lower part of the mold, and by pressure by the alloy material press-in die of melting, casting is divided into following
Stage: fill the type stage: the time keeps 15-20s, pressure using 0.025 megapascal；Pressurization stages: the time keeps 20-30s, pressure
Using 0.05 megapascal；Packing stage: the time keeps 60-120s, and pressure uses 0.05 megapascal.
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| CN201910113006.2A CN109848651A (en) | 2019-02-13 | 2019-02-13 | The preparation method of aluminum vehicle wiper actuating arm |
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| CN201910113006.2A CN109848651A (en) | 2019-02-13 | 2019-02-13 | The preparation method of aluminum vehicle wiper actuating arm |
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| CN108624769A (en) * | 2018-03-27 | 2018-10-09 | 大亚车轮制造有限公司 | A kind of casting technique of narrower spoke aluminium alloy wheel hub |
| CN108677039A (en) * | 2018-04-04 | 2018-10-19 | 深圳万佳互动科技有限公司 | A kind of magnesium alloy of Laser Surface Treatment |
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Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104805340A (en) * | 2015-05-21 | 2015-07-29 | 广西友合铝材有限公司 | Rare earth aluminium-magnesium-silicon alloy material and preparation method thereof |
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| CN107447132A (en) * | 2017-09-04 | 2017-12-08 | 河北工业大学 | A kind of zinc-containing alloy and preparation method thereof |
| CN108441810A (en) * | 2018-01-23 | 2018-08-24 | 宁波沈鑫电子有限公司 | A kind of die casting aluminium piece surface treatment process |
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