CN110102732A - A kind of aluminium alloy automobile part compression molding process - Google Patents
A kind of aluminium alloy automobile part compression molding process Download PDFInfo
- Publication number
- CN110102732A CN110102732A CN201910500744.2A CN201910500744A CN110102732A CN 110102732 A CN110102732 A CN 110102732A CN 201910500744 A CN201910500744 A CN 201910500744A CN 110102732 A CN110102732 A CN 110102732A
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- Prior art keywords
- melt
- molding process
- compression molding
- aluminium alloy
- automobile part
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Classifications
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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
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/026—Alloys based on aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The present invention is a kind of aluminium alloy automobile part compression molding process, it is characterized in that, its step are as follows: (1) carrying out melting to aluminum alloy materials, (2) carry out die cast to melt, and (3) are surface-treated and are cleaned to die casting.Aluminum alloy materials smelting technology of the invention is simple and easy, and production security is high；When die casting, poring rate is controllable, and molten metal can relatively smooth enter mold, it is possible to reduce the hot cracking tendency of casting eliminates the hidden danger of hot tearing to a certain extent；And auto parts clean up, good impurity removing effect.
Description
Technical field
The present invention relates to a kind of aluminium alloy car forming parts technology technical field more particularly to a kind of aluminium alloy automobiles zero
Part compression molding process.
Background technique
With the progress of global industry, automotive light weight technology has become the inexorable trend of social development, more and more aluminums
Status of the part instead of traditional steel-iron components.Die-casting technique as production aluminum alloy part a kind of important process, have compared with
High formed precision, production efficiency and excellent surface quality is suitble to high-volume automated production, occupies in foundiy industry
Higher and higher status.When carrying out melt injection to mold, generally directly once mold is filled, melt may be overflowed and be cast
There are hot tearing hidden danger for part.It is cleaned after part production, traditional cleaning way but needs human hand held automatic water jetting pipe to go
It is cleaned, but this mode not only needs to consume a large amount of labours, but also more time-consuming, and current aluminum alloy part
Cleaning method exists following insufficient: removal washmarking that can not be basic, and time-consuming and laborious, cleaning effect is poor；Chemical solution preparation is cumbersome,
Complicated for operation time-consuming and cleaning overall effect is general.
Summary of the invention
Present invention seek to address that the deficiencies in the prior art, and a kind of aluminium alloy automobile part compression molding process is provided.
The present invention to achieve the above object, using following technical scheme: a kind of aluminium alloy automobile part compression molding process,
It is characterized in that, its step are as follows:
(1) melting is carried out to aluminum alloy materials, its step are as follows:
A preparation: checking melting furnace and its relevant device, guarantees that each equipment works normally；Melting furnace uses front-seat
Imflammable gas in flake hearth-tapping, it is ensured that ignition security；
Aluminum alloy materials are put into melting furnace by b, and are heated to melting, meanwhile, asbestos cloth is covered at fire door, guarantees furnace
Interior temperature is uniform, reduces air-breathing oxidative phenomena；At this point, fusing in-furnace temperature reaches 760 DEG C~800 DEG C, the temperature of melt reaches
710 DEG C~730 DEG C；
After c keeps the temperature 1h~2h to melt under 690 DEG C~700 DEG C ranges, refining agent and grain refiner are sequentially added
In melt, and to stir 10~20 minutes respectively, after refining refinement, until bubble-free is emerged, deslagging agent is added in standing 30min, and
Remove surface scum；
(2) die cast is carried out to melt, its step are as follows:
The melt of step c is cooled to 600 DEG C~620 DEG C by d, is put into the holding furnace of die casting machine；
E preheats mold, and preheating temperature reaches 150 DEG C~200 DEG C, and one layer of the even application demoulding in mold cavity
Agent continues to be heated to 280 DEG C~320 DEG C；
F is by melt injection to mold, and melt flow velocity when beginning is 0.5-0.6m/s, casting pressure 60-65Mpa,
It is more than that the flow velocity of melt is reduced after 60% to 0.1-0.2m/s, casting pressure 75-100Mpa, until filling type that mold, which fills type rate,
Die casting terminates；
After melt in g mold is hardened to Al-alloy products, demoulding processing is carried out；
(3) die casting is surface-treated and is cleaned, its step are as follows:
H is surface-treated die casting: polishing, grinding, plated film；
I cleaning: first wash is cleaned after 10~20min with being dried with nitrogen using pure water, then carries out surface wipes with ethyl alcohol
And it dries；Secondary cleaning uses its surface of ultrasonic cleaning, is sprayed again with pure water to its surface after the completion, uses nitrogen again
Drying, is then dried in drying box.
Particularly, the dosage of refining agent is the 1%~2% of melt quality in the step c.
Particularly, the dosage of grain refiner is the 0.8%~1.8% of melt quality in the step c.
Particularly, the dosage of deslagging agent is the 0.2% of melt quality in the step c.
Particularly, the temperature of drying box is 100 DEG C~120 DEG C in the step i.
Particularly, the drying time period of the step i drying box is 2h.
The beneficial effects of the present invention are: aluminum alloy materials smelting technology of the invention is simple and easy, production security is high；Pressure
When casting, poring rate is controllable, and molten metal can relatively smooth enter mold, it is possible to reduce the hot cracking tendency of casting, certain
The hidden danger of hot tearing is eliminated in degree；And auto parts clean up, good impurity removing effect.
Specific embodiment
Below with reference to embodiment, the invention will be further described:
Embodiment 1
A kind of aluminium alloy automobile part compression molding process, which is characterized in that its step are as follows:
(1) melting is carried out to aluminum alloy materials, its step are as follows:
A preparation: checking melting furnace and its relevant device, guarantees that each equipment works normally；Melting furnace uses front-seat
Imflammable gas in flake hearth-tapping, it is ensured that ignition security；
Aluminum alloy materials are put into melting furnace by b, and are heated to melting, meanwhile, asbestos cloth is covered at fire door, guarantees furnace
Interior temperature is uniform, reduces air-breathing oxidative phenomena；At this point, fusing in-furnace temperature reaches 760 DEG C, the temperature of melt reaches 710 DEG C；
After c keeps the temperature 1h to melt at 690 DEG C, refining agent and grain refiner are sequentially added in melt, and is stirred respectively
It mixes 10 minutes, wherein the dosage of refining agent is the 1% of melt quality, and the dosage of grain refiner is the 0.8% of melt quality,
After refining refinement, until bubble-free is emerged, deslagging agent is added, and remove surface scum, wherein the use of deslagging agent in standing 30min
Amount is the 0.2% of melt quality；
(2) die cast is carried out to melt, its step are as follows:
The melt of step c is cooled to 600 DEG C by d, is put into the holding furnace of die casting machine；
E preheats mold, and preheating temperature reaches 150 DEG C, and one layer of release agent of even application in mold cavity, continues
It is heated to 280 DEG C；
F is by melt injection to mold, and melt flow velocity when beginning is 0.5m/s, casting pressure 60Mpa, and mold fills type
Rate is more than that the flow velocity of melt is reduced after 60% to 0.1m/s, casting pressure 75Mpa, until filling type die casting terminates；
After melt in g mold is hardened to Al-alloy products, demoulding processing is carried out；
(3) die casting is surface-treated and is cleaned, its step are as follows:
H is surface-treated die casting: polishing, grinding, plated film；
I cleaning: first wash after pure water cleaning 10min using with being dried with nitrogen, then carrying out surface wipes with ethyl alcohol and dry in the air
It is dry；Secondary cleaning uses its surface of ultrasonic cleaning, is sprayed with pure water to its surface, is blown again with nitrogen again after the completion
It is dry, it is then dried in drying box, drying temperature is 100 DEG C, dries 2h.
Embodiment 2
A kind of aluminium alloy automobile part compression molding process, which is characterized in that its step are as follows:
(1) melting is carried out to aluminum alloy materials, its step are as follows:
A preparation: checking melting furnace and its relevant device, guarantees that each equipment works normally；Melting furnace uses front-seat
Imflammable gas in flake hearth-tapping, it is ensured that ignition security；
Aluminum alloy materials are put into melting furnace by b, and are heated to melting, meanwhile, asbestos cloth is covered at fire door, guarantees furnace
Interior temperature is uniform, reduces air-breathing oxidative phenomena；At this point, fusing in-furnace temperature reaches 800 DEG C, the temperature of melt reaches 730 DEG C；
After c keeps the temperature 2h to melt under 700 DEG C of ranges, refining agent and grain refiner are sequentially added in melt, and point
It Jiao Ban not be 20 minutes, wherein the dosage of refining agent is the 2% of melt quality, and the dosage of grain refiner is melt quality
1.8%, after refining refinement, until bubble-free is emerged, deslagging agent is added, and remove surface scum, wherein slagging-off in standing 30min
The dosage of agent is the 0.2% of melt quality；
(2) die cast is carried out to melt, its step are as follows:
The melt of step c is cooled to 620 DEG C by d, is put into the holding furnace of die casting machine；
E preheats mold, and preheating temperature reaches 200 DEG C, and one layer of release agent of even application in mold cavity, continues
It is heated to 320 DEG C；
F is by melt injection to mold, and melt flow velocity when beginning is 0.6m/s, casting pressure 65Mpa, and mold fills type
Rate is more than that the flow velocity of melt is reduced after 60% to 0.2m/s, casting pressure 100Mpa, until filling type die casting terminates；
After melt in g mold is hardened to Al-alloy products, demoulding processing is carried out；
(3) die casting is surface-treated and is cleaned, its step are as follows:
H is surface-treated die casting: polishing, grinding, plated film；
I cleaning: first wash after pure water cleaning 20min using with being dried with nitrogen, then carrying out surface wipes with ethyl alcohol and dry in the air
It is dry；Secondary cleaning uses its surface of ultrasonic cleaning, is sprayed with pure water to its surface, is blown again with nitrogen again after the completion
It is dry, it is then dried in drying box, drying temperature is 120 DEG C, dries 2h.
Embodiment 3
A kind of aluminium alloy automobile part compression molding process, which is characterized in that its step are as follows:
(1) melting is carried out to aluminum alloy materials, its step are as follows:
A preparation: checking melting furnace and its relevant device, guarantees that each equipment works normally；Melting furnace uses front-seat
Imflammable gas in flake hearth-tapping, it is ensured that ignition security；
Aluminum alloy materials are put into melting furnace by b, and are heated to melting, meanwhile, asbestos cloth is covered at fire door, guarantees furnace
Interior temperature is uniform, reduces air-breathing oxidative phenomena；At this point, fusing in-furnace temperature reaches 780 DEG C, the temperature of melt reaches 720 DEG C；
After c keeps the temperature 1.5h to melt under 695 DEG C of ranges, refining agent and grain refiner are sequentially added in melt, and
It stirs 15 minutes respectively, wherein the dosage of refining agent is the 1.5% of melt quality, and the dosage of grain refiner is melt quality
1.3%, after refining refinement, until bubble-free is emerged, stand 30min, deslagging agent be added, and remove surface scum, wherein remove
The dosage of slag agent is the 0.2% of melt quality；
(2) die cast is carried out to melt, its step are as follows:
The melt of step c is cooled to 610 DEG C by d, is put into the holding furnace of die casting machine；
E preheats mold, and preheating temperature reaches 175 DEG C, and one layer of release agent of even application in mold cavity, continues
It is heated to 300 DEG C；
F is by melt injection to mold, and melt flow velocity when beginning is 0.55m/s, casting pressure 62.5Mpa, mold
Filling type rate is more than that the flow velocity of melt is reduced after 60% to 0.15m/s, casting pressure 87Mpa, until filling type die casting terminates；
After melt in g mold is hardened to Al-alloy products, demoulding processing is carried out；
(3) die casting is surface-treated and is cleaned, its step are as follows:
H is surface-treated die casting: polishing, grinding, plated film；
I cleaning: first wash after pure water cleaning 15min using with being dried with nitrogen, then carrying out surface wipes with ethyl alcohol and dry in the air
It is dry；Secondary cleaning uses its surface of ultrasonic cleaning, is sprayed with pure water to its surface, is blown again with nitrogen again after the completion
It is dry, it is then dried in drying box, drying temperature is 110 DEG C, dries 2h.
The present invention is exemplarily described above, it is clear that present invention specific implementation is not subject to the restrictions described above,
As long as using the various improvement that the inventive concept and technical scheme of the present invention carry out, or not improved directly apply to other fields
It closes, it is within the scope of the present invention.
Claims (6)
1. a kind of aluminium alloy automobile part compression molding process, which is characterized in that its step are as follows:
(1) melting is carried out to aluminum alloy materials, its step are as follows:
A preparation: checking melting furnace and its relevant device, guarantees that each equipment works normally；Melting furnace is come out of the stove using front row
Imflammable gas in thorax, it is ensured that ignition security；
Aluminum alloy materials are put into melting furnace by b, and are heated to melting, meanwhile, asbestos cloth is covered at fire door, guarantees temperature in furnace
Degree uniformly, reduces air-breathing oxidative phenomena；At this point, fusing in-furnace temperature reaches 760 DEG C~800 DEG C, the temperature of melt reaches 710 DEG C
~730 DEG C；
After c keeps the temperature 1h~2h to melt under 690 DEG C~700 DEG C ranges, refining agent and grain refiner are sequentially added into melt
It is interior, and stir 10~20 minutes respectively, after refining refinement, until bubble-free is emerged, deslagging agent is added, and removes in standing 30min
Surface scum；
(2) die cast is carried out to melt, its step are as follows:
The melt of step c is cooled to 600 DEG C~620 DEG C by d, is put into the holding furnace of die casting machine；
E preheats mold, and preheating temperature reaches 150 DEG C~200 DEG C, and one layer of release agent of even application in mold cavity,
Continue to be heated to 280 DEG C~320 DEG C；
F is by melt injection to mold, and melt flow velocity when beginning is 0.5~0.6m/s, casting pressure is 60~65Mpa, mould
It is more than that flow velocity to 0.1~0.2m/s, the casting pressure of melt is reduced after 60% is 75~100Mpa that tool, which fills type rate, up to filling type
Die casting terminates；
After melt in g mold is hardened to Al-alloy products, demoulding processing is carried out；
(3) die casting is surface-treated and is cleaned, its step are as follows:
H is surface-treated die casting: polishing, grinding, plated film；
I cleaning: first wash is cleaned after 10~20min using pure water with being dried with nitrogen, then is carried out surface wipes with ethyl alcohol and dried in the air
It is dry；Secondary cleaning uses its surface of ultrasonic cleaning, is sprayed with pure water to its surface, is blown again with nitrogen again after the completion
It is dry, then dried in drying box.
2. a kind of aluminium alloy automobile part compression molding process according to claim 1, which is characterized in that the step c
The dosage of middle refining agent is the 1%~2% of melt quality.
3. a kind of aluminium alloy automobile part compression molding process according to claim 1, which is characterized in that the step c
The dosage of middle grain refiner is the 0.8%~1.8% of melt quality.
4. a kind of aluminium alloy automobile part compression molding process according to claim 1, which is characterized in that the step c
The dosage of middle deslagging agent is the 0.2% of melt quality.
5. a kind of aluminium alloy automobile part compression molding process according to claim 1, which is characterized in that the step i
The temperature of middle drying box is 100 DEG C~120 DEG C.
6. a kind of aluminium alloy automobile part compression molding process according to claim 1, which is characterized in that the step i
The drying time period of drying box is 2h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910500744.2A CN110102732A (en) | 2019-06-11 | 2019-06-11 | A kind of aluminium alloy automobile part compression molding process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910500744.2A CN110102732A (en) | 2019-06-11 | 2019-06-11 | A kind of aluminium alloy automobile part compression molding process |
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| Publication Number | Publication Date |
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| CN110102732A true CN110102732A (en) | 2019-08-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910500744.2A Withdrawn CN110102732A (en) | 2019-06-11 | 2019-06-11 | A kind of aluminium alloy automobile part compression molding process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114713786A (en) * | 2022-02-20 | 2022-07-08 | 美诺精密汽车零部件(南通)有限公司 | Aluminum alloy die-casting process for improving yield |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59189033A (en) * | 1983-04-05 | 1984-10-26 | Honda Motor Co Ltd | Production of aluminum alloy casting |
| CN106312007A (en) * | 2016-08-31 | 2017-01-11 | 铝冠精密机械科技（苏州）有限公司 | Aluminum alloy pressure casting technology for automobile sheet |
| CN107523706A (en) * | 2017-08-10 | 2017-12-29 | 兴化市精密铸锻造产业研究院有限公司 | A kind of aluminium alloy compression casting moulding process for gearbox body |
| CN108203768A (en) * | 2017-12-29 | 2018-06-26 | 天津圣金特汽车配件有限公司 | A kind of auto parts pack alloy smelting technology |
| CN109536788A (en) * | 2018-12-04 | 2019-03-29 | 合肥江淮铸造有限责任公司 | Lightweight pack alloy cylinder body moulding process |
-
2019
- 2019-06-11 CN CN201910500744.2A patent/CN110102732A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59189033A (en) * | 1983-04-05 | 1984-10-26 | Honda Motor Co Ltd | Production of aluminum alloy casting |
| CN106312007A (en) * | 2016-08-31 | 2017-01-11 | 铝冠精密机械科技（苏州）有限公司 | Aluminum alloy pressure casting technology for automobile sheet |
| CN107523706A (en) * | 2017-08-10 | 2017-12-29 | 兴化市精密铸锻造产业研究院有限公司 | A kind of aluminium alloy compression casting moulding process for gearbox body |
| CN108203768A (en) * | 2017-12-29 | 2018-06-26 | 天津圣金特汽车配件有限公司 | A kind of auto parts pack alloy smelting technology |
| CN109536788A (en) * | 2018-12-04 | 2019-03-29 | 合肥江淮铸造有限责任公司 | Lightweight pack alloy cylinder body moulding process |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114713786A (en) * | 2022-02-20 | 2022-07-08 | 美诺精密汽车零部件(南通)有限公司 | Aluminum alloy die-casting process for improving yield |
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Application publication date: 20190809 |
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