CN107083504A - The preparation method of aluminium alloy wheel hub - Google Patents
The preparation method of aluminium alloy wheel hub Download PDFInfo
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- CN107083504A CN107083504A CN201710288609.7A CN201710288609A CN107083504A CN 107083504 A CN107083504 A CN 107083504A CN 201710288609 A CN201710288609 A CN 201710288609A CN 107083504 A CN107083504 A CN 107083504A
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- aluminium
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- wheel hub
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
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- 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
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- 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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Abstract
The invention discloses a kind of preparation method of aluminium alloy wheel hub, including：Step 1: carrying out a melting once aluminium liquid of formation to aluminium ingot, melting once temperature is 800 850 DEG C, and the melting once time is 20 30min；Step 2: adding slag-cleaning agent into an aluminium liquid, the mass ratio of slag-cleaning agent and aluminium ingot is 0.3 0.5:1000 parts, secondary smelting is carried out afterwards, and secondary smelting temperature is 600 650 DEG C, and the secondary smelting time is 3 5h, and deslagging is stood afterwards；Refined Step 3: adding refining agent into the secondary aluminium liquid through deslagging again, refining temperature is 700 730 DEG C, refining time is 20 40min；Step 4: aluminium alloy wheel hub is made using aluminium liquid casting made from step 3.Present invention reduces the content of the hydrogen content in aluminium liquid and field trash, so as to improve the mobility and solidification shrinkage of aluminium alloy, and then preparation-obtained aluminium alloy wheel hub formation pin hole and cinder hole are avoided.
Description
Technical field
The present invention relates to metal material field, more particularly to a kind of preparation method of aluminium alloy wheel hub.
Background technology
The processing method of existing aluminium alloy wheel hub includes：Molten refined, casting and the machining of aluminium ingot.Melting
The quality of aluminium liquid after refining directly determines the quality of aluminium alloy wheel hub, the quality of aluminium liquid it is main by the hydrogen content in aluminium liquid and
The content of field trash is determined in aluminium liquid.The content of field trash determines aluminium alloy wheel hub table in hydrogen content and aluminium liquid in aluminium liquid
Shrinkage when the pin hole situation in face, the mobility of aluminium liquid and solidification.
But the content of the hydrogen content and field trash in existing aluminium liquid is generally higher, directly affects aluminium alloy wheel hub
Quality, causes the low qualified of aluminium alloy wheel hub, and then increases production cost.
The content of the invention
For above-mentioned technical problem, the present invention has designed and developed a kind of preparation method of aluminium alloy wheel hub, eventually for system
Make hydrogen content and inclusion content in the aluminium liquid of aluminium alloy wheel hub relatively low, so that ensure that aluminium alloy wheel hub is pin-free and cinder hole, knot
Structure stable homogeneous.
The technical scheme that the present invention is provided is：
A kind of preparation method of aluminium alloy wheel hub, including：
Step 1: carrying out a melting once aluminium liquid of formation to aluminium ingot, melting once temperature is 800-850 DEG C, is once melted
The refining time is 20-30min, and the aluminium ingot includes following following component according to the mass fraction：8-9 parts of Si, Mg 0.2-0.4
Part, 0.02-0.04 parts of Ti, 0.03-0.05 parts of Fe, 0.01-0.02 parts of Cu, 0.01-0.02 parts of Zn, remaining is Al；
Step 2: adding slag-cleaning agent into an aluminium liquid, the slag-cleaning agent includes sodium chloride, potassium chloride and sodium carbonate, its
In, the mass ratio of sodium chloride, potassium chloride and sodium carbonate is 1:0.2-0.4:0.2-0.4, the matter of the slag-cleaning agent and the aluminium ingot
Amount is than being 0.3-0.5:1000 parts, carry out secondary smelting afterwards, secondary smelting temperature is 600-650 DEG C, the secondary smelting time is
3-5h, stands deslagging afterwards；
Refined Step 3: adding refining agent into the secondary aluminium liquid through deslagging again, the refining agent is cryolite,
The mass ratio of the refining agent and the aluminium ingot is 0.3-0.5:1000 parts, refining temperature is 700-730 DEG C, and refining time is
20-40min；
Step 4: aluminium alloy wheel hub is made using aluminium liquid casting made from step 3.
Preferably, in the preparation method of described aluminium alloy wheel hub, in the step one, melting once temperature is 850
DEG C, the melting once time is 30min.
Preferably, in the preparation method of described aluminium alloy wheel hub, in the step 2, sodium chloride, potassium chloride and carbon
The mass ratio of sour sodium is 1:0.4:0.4, the mass ratio of the slag-cleaning agent and the aluminium ingot is 0.5:1000 parts.
Preferably, in the preparation method of described aluminium alloy wheel hub, in the step 2, secondary smelting temperature is 650
DEG C, the secondary smelting time is 5h.
Preferably, in the preparation method of described aluminium alloy wheel hub, in the step 3, the refining agent and the aluminium
The mass ratio of ingot is 0.5:1000 parts.
Preferably, in the preparation method of described aluminium alloy wheel hub, in the step 3, refining temperature is 730 DEG C, essence
The refining time is 40min.
The preparation method of aluminium alloy wheel hub of the present invention is reduced most by being studied technological parameter and being designed
The content of hydrogen content and field trash in whole aluminium liquid, so as to improve the mobility and solidification shrinkage of aluminium alloy, and then is avoided
Preparation-obtained aluminium alloy wheel hub formation pin hole and cinder hole, make its structure stable homogeneous, extend its service life.
Embodiment
The present invention is described in further detail below, to make those skilled in the art being capable of evidence with reference to specification word
To implement.
The present invention provides a kind of preparation method of aluminium alloy wheel hub, including：
Step 1: carrying out a melting once aluminium liquid of formation to aluminium ingot, melting once temperature is 800-850 DEG C, is once melted
The refining time is 20-30min, and the aluminium ingot includes following following component according to the mass fraction：8-9 parts of Si, Mg 0.2-0.4
Part, 0.02-0.04 parts of Ti, 0.03-0.05 parts of Fe, 0.01-0.02 parts of Cu, 0.01-0.02 parts of Zn, remaining is Al；
Step 2: adding slag-cleaning agent into an aluminium liquid, the slag-cleaning agent includes sodium chloride, potassium chloride and sodium carbonate, its
In, the mass ratio of sodium chloride, potassium chloride and sodium carbonate is 1:0.2-0.4:0.2-0.4, the matter of the slag-cleaning agent and the aluminium ingot
Amount is than being 0.3-0.5:1000 parts, carry out secondary smelting afterwards, secondary smelting temperature is 600-650 DEG C, the secondary smelting time is
3-5h, stands deslagging afterwards；
Refined Step 3: adding refining agent into the secondary aluminium liquid through deslagging again, the refining agent is cryolite,
The mass ratio of the refining agent and the aluminium ingot is 0.3-0.5:1000 parts, refining temperature is 700-730 DEG C, and refining time is
20-40min；
Step 4: aluminium alloy wheel hub is made using aluminium liquid casting made from step 3.
The present invention first carries out melting once to aluminium ingot, and the temperature of melting once is carried out at relative to higher temperature,
And continue for some time, to promote gas therein to discharge；A backward aluminium liquid in add slag-cleaning agent, then carry out secondary molten
Refining, the secondary smelting time is longer, and during secondary smelting, slag-cleaning agent is fully acted on, and removes contained in secondary aluminium liquid be mingled with
Thing.In refining link, the consumption of refining temperature precise time and refining agent is accurately controlled, to promote refining agent fully to act on,
Remove field trash and hydrogen.The present invention improves the mobility and solidification shrinkage of final aluminium liquid, it is to avoid preparing aluminium alloy wheel hub
When produce pin hole and cinder hole.
Preferably, in the preparation method of described aluminium alloy wheel hub, in the step one, melting once temperature is 850
DEG C, the melting once time is 30min.
Preferably, in the preparation method of described aluminium alloy wheel hub, in the step 2, sodium chloride, potassium chloride and carbon
The mass ratio of sour sodium is 1:0.4:0.4, the mass ratio of the slag-cleaning agent and the aluminium ingot is 0.5:1000 parts.
Preferably, in the preparation method of described aluminium alloy wheel hub, in the step 2, secondary smelting temperature is 650
DEG C, the secondary smelting time is 5h.
Preferably, in the preparation method of described aluminium alloy wheel hub, in the step 3, the refining agent and the aluminium
The mass ratio of ingot is 0.5:1000 parts.
Preferably, in the preparation method of described aluminium alloy wheel hub, in the step 3, refining temperature is 730 DEG C, essence
The refining time is 40min.
Embodiment one
Step 1: carrying out a melting once aluminium liquid of formation to aluminium ingot 1000kg, melting once temperature is 800 DEG C, once
Smelting time is 20min, and the aluminium ingot includes following following component according to the mass fraction：0.2-0.4 parts of 8-9 parts of Si, Mg,
0.01-0.02 parts of 0.01-0.02 parts of 0.03-0.05 parts of 0.02-0.04 parts of Ti, Fe, Cu, Zn, remaining is Al；
Step 2: adding slag-cleaning agent into an aluminium liquid, the slag-cleaning agent includes sodium chloride, potassium chloride and sodium carbonate, its
In, the mass ratio of sodium chloride, potassium chloride and sodium carbonate is 1:0.2:0.2, the mass ratio of the slag-cleaning agent and the aluminium ingot is
0.3:1000 parts, secondary smelting is carried out afterwards, and secondary smelting temperature is 600 DEG C, and the secondary smelting time is 3h, afterwards the row of standing
Slag；
Refined Step 3: adding refining agent into the secondary aluminium liquid through deslagging again, the refining agent is cryolite,
The mass ratio of the refining agent and the aluminium ingot is 0.3:1000 parts, refining temperature is 700 DEG C, and refining time is 20min；
Step 4: aluminium alloy wheel hub is made using aluminium liquid casting made from step 3.
Embodiment two
Step 1: carrying out a melting once aluminium liquid of formation to aluminium ingot 1000kg, melting once temperature is 850 DEG C, once
Smelting time is 30min, and the aluminium ingot includes following following component according to the mass fraction：0.2-0.4 parts of 8-9 parts of Si, Mg,
0.01-0.02 parts of 0.01-0.02 parts of 0.03-0.05 parts of 0.02-0.04 parts of Ti, Fe, Cu, Zn, remaining is Al；
Step 2: adding slag-cleaning agent into an aluminium liquid, the slag-cleaning agent includes sodium chloride, potassium chloride and sodium carbonate, its
In, the mass ratio of sodium chloride, potassium chloride and sodium carbonate is 1:0.4:0.4, the mass ratio of the slag-cleaning agent and the aluminium ingot is
0.5:1000 parts, secondary smelting is carried out afterwards, and secondary smelting temperature is 650 DEG C, and the secondary smelting time is 5h, afterwards the row of standing
Slag；
Refined Step 3: adding refining agent into the secondary aluminium liquid through deslagging again, the refining agent is cryolite,
The mass ratio of the refining agent and the aluminium ingot is 0.5:1000 parts, refining temperature is 730 DEG C, and refining time is 40min；
Step 4: aluminium alloy wheel hub is made using aluminium liquid casting made from step 3.
Embodiment three
Step 1: carrying out a melting once aluminium liquid of formation to aluminium ingot 1000kg, melting once temperature is 800 DEG C, once
Smelting time is 30min, and the aluminium ingot includes following following component according to the mass fraction：0.2-0.4 parts of 8-9 parts of Si, Mg,
0.01-0.02 parts of 0.01-0.02 parts of 0.03-0.05 parts of 0.02-0.04 parts of Ti, Fe, Cu, Zn, remaining is Al；
Step 2: adding slag-cleaning agent into an aluminium liquid, the slag-cleaning agent includes sodium chloride, potassium chloride and sodium carbonate, its
In, the mass ratio of sodium chloride, potassium chloride and sodium carbonate is 1:0.4:0.4, the mass ratio of the slag-cleaning agent and the aluminium ingot is
0.5:1000 parts, secondary smelting is carried out afterwards, and secondary smelting temperature is 620 DEG C, and the secondary smelting time is 5h, afterwards the row of standing
Slag；
Refined Step 3: adding refining agent into the secondary aluminium liquid through deslagging again, the refining agent is cryolite,
The mass ratio of the refining agent and the aluminium ingot is 0.5:1000 parts, refining temperature is 710 DEG C, and refining time is 40min；
Step 4: aluminium alloy wheel hub is made using aluminium liquid casting made from step 3.
Example IV
Step 1: carrying out a melting once aluminium liquid of formation to aluminium ingot 1000kg, melting once temperature is 820 DEG C, once
Smelting time is 30min, and the aluminium ingot includes following following component according to the mass fraction：0.2-0.4 parts of 8-9 parts of Si, Mg,
0.01-0.02 parts of 0.01-0.02 parts of 0.03-0.05 parts of 0.02-0.04 parts of Ti, Fe, Cu, Zn, remaining is Al；
Step 2: adding slag-cleaning agent into an aluminium liquid, the slag-cleaning agent includes sodium chloride, potassium chloride and sodium carbonate, its
In, the mass ratio of sodium chloride, potassium chloride and sodium carbonate is 1:0.2:0.2, the mass ratio of the slag-cleaning agent and the aluminium ingot is
0.3:1000 parts, secondary smelting is carried out afterwards, and secondary smelting temperature is 600 DEG C, and the secondary smelting time is 3h, afterwards the row of standing
Slag；
Refined Step 3: adding refining agent into the secondary aluminium liquid through deslagging again, the refining agent is cryolite,
The mass ratio of the refining agent and the aluminium ingot is 0.3:1000 parts, refining temperature is 700 DEG C, and refining time is 25min；
Step 4: aluminium alloy wheel hub is made using aluminium liquid casting made from step 3.
Embodiment five
Step 1: carrying out a melting once aluminium liquid of formation to aluminium ingot 1000kg, melting once temperature is 820 DEG C, once
Smelting time is 25min, and the aluminium ingot includes following following component according to the mass fraction：0.2-0.4 parts of 8-9 parts of Si, Mg,
0.01-0.02 parts of 0.01-0.02 parts of 0.03-0.05 parts of 0.02-0.04 parts of Ti, Fe, Cu, Zn, remaining is Al；
Step 2: adding slag-cleaning agent into an aluminium liquid, the slag-cleaning agent includes sodium chloride, potassium chloride and sodium carbonate, its
In, the mass ratio of sodium chloride, potassium chloride and sodium carbonate is 1:0.4:0.4, the mass ratio of the slag-cleaning agent and the aluminium ingot is
0.3:1000 parts, secondary smelting is carried out afterwards, and secondary smelting temperature is 650 DEG C, and the secondary smelting time is 5h, afterwards the row of standing
Slag；
Refined Step 3: adding refining agent into the secondary aluminium liquid through deslagging again, the refining agent is cryolite,
The mass ratio of the refining agent and the aluminium ingot is 0.5:1000 parts, refining temperature is 730 DEG C, and refining time is 40min；
Step 4: aluminium alloy wheel hub is made using aluminium liquid casting made from step 3.
Embodiment six
Step 1: carrying out a melting once aluminium liquid of formation to aluminium ingot 1000kg, melting once temperature is 850 DEG C, once
Smelting time is 30min, and the aluminium ingot includes following following component according to the mass fraction：0.2-0.4 parts of 8-9 parts of Si, Mg,
0.01-0.02 parts of 0.01-0.02 parts of 0.03-0.05 parts of 0.02-0.04 parts of Ti, Fe, Cu, Zn, remaining is Al；
Step 2: adding slag-cleaning agent into an aluminium liquid, the slag-cleaning agent includes sodium chloride, potassium chloride and sodium carbonate, its
In, the mass ratio of sodium chloride, potassium chloride and sodium carbonate is 1:0.3:0.3, the mass ratio of the slag-cleaning agent and the aluminium ingot is
0.5:1000 parts, secondary smelting is carried out afterwards, and secondary smelting temperature is 650 DEG C, and the secondary smelting time is 5h, afterwards the row of standing
Slag；
Refined Step 3: adding refining agent into the secondary aluminium liquid through deslagging again, the refining agent is cryolite,
The mass ratio of the refining agent and the aluminium ingot is 0.4:1000 parts, refining temperature is 700 DEG C, and refining time is 20min；
Step 4: aluminium alloy wheel hub is made using aluminium liquid casting made from step 3.
Table 1 provides embodiment one field trash and hydrogen content into embodiment six, while the solidification for giving final aluminium liquid is received
Contracting and mobility.
Table 1
Although embodiment of the present invention is disclosed as above, it is not restricted in specification and embodiment listed
With it can be applied to various suitable the field of the invention completely, can be easily for those skilled in the art
Other modification is realized, therefore under the universal limited without departing substantially from claim and equivalency range, the present invention is not limited
In specific details.
Claims (6)
1. a kind of preparation method of aluminium alloy wheel hub, it is characterised in that including：
Step 1: carrying out a melting once aluminium liquid of formation to aluminium ingot, melting once temperature is 800-850 DEG C, during melting once
Between be 20-30min, the aluminium ingot include following following component according to the mass fraction：Si8-9 parts, 0.2-0.4 parts of Mg, Ti
0.02-0.04 parts, 0.03-0.05 parts of Fe, 0.01-0.02 parts of Cu, Zn0.01-0.02 parts, remaining is Al；
Step 2: adding slag-cleaning agent into an aluminium liquid, the slag-cleaning agent includes sodium chloride, potassium chloride and sodium carbonate, wherein, chlorine
The mass ratio for changing sodium, potassium chloride and sodium carbonate is 1:0.2-0.4:0.2-0.4, the mass ratio of the slag-cleaning agent and the aluminium ingot is
0.3-0.5:1000 parts, secondary smelting is carried out afterwards, and secondary smelting temperature is 600-650 DEG C, and the secondary smelting time is 3-5h, it
After stand deslagging；
Refined Step 3: adding refining agent into the secondary aluminium liquid through deslagging again, the refining agent is cryolite, described
The mass ratio of refining agent and the aluminium ingot is 0.3-0.5:1000 parts, refining temperature is 700-730 DEG C, and refining time is 20-
40min；
Step 4: aluminium alloy wheel hub is made using aluminium liquid casting made from step 3.
2. the preparation method of aluminium alloy wheel hub as claimed in claim 1, it is characterised in that in the step one, melting once
Temperature is 850 DEG C, and the melting once time is 30min.
3. the preparation method of aluminium alloy wheel hub as claimed in claim 1, it is characterised in that in the step 2, sodium chloride, chlorine
The mass ratio for changing potassium and sodium carbonate is 1:0.4:0.4, the mass ratio of the slag-cleaning agent and the aluminium ingot is 0.5:1000 parts.
4. the preparation method of aluminium alloy wheel hub as claimed in claim 1, it is characterised in that in the step 2, secondary smelting
Temperature is 650 DEG C, and the secondary smelting time is 5h.
5. the preparation method of aluminium alloy wheel hub as claimed in claim 1, it is characterised in that in the step 3, the refining
The mass ratio of agent and the aluminium ingot is 0.5:1000 parts.
6. the preparation method of aluminium alloy wheel hub as claimed in claim 1, it is characterised in that in the step 3, refining temperature
For 730 DEG C, refining time is 40min.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111979452A (en) * | 2019-05-21 | 2020-11-24 | 广州丝若缇娜量子科技有限公司 | Automobile fuel economizer and method thereof |
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