CN106566939A - Smelting and degassing method for alloy liquid of alloy bush - Google Patents
Smelting and degassing method for alloy liquid of alloy bush Download PDFInfo
- Publication number
- CN106566939A CN106566939A CN201610979721.0A CN201610979721A CN106566939A CN 106566939 A CN106566939 A CN 106566939A CN 201610979721 A CN201610979721 A CN 201610979721A CN 106566939 A CN106566939 A CN 106566939A
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- alloy
- smelting
- glass
- smelting furnace
- aluminium alloy
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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
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a smelting and degassing method for alloy liquid of an alloy bush. The smelting and degassing method comprises the following steps that (1) after the alloy liquid is completely smelted, broken glass and alloy powder are added into the bottom of a smelting furnace in sequence, the smelting furnace is powered on, the alloy powder coats the broken glass after being smelted, the broken glass is molten into liquid glass, and an iron rod is used for full stirring; (2) high-pressure nitrogen starts to be input into the alloy liquid to make the alloy liquid uniform while stirring is carried out, the nitrogen pressure is 0.6 MPa, after complete melting is achieved, sand is spread at the top of the smelting furnace, the glass in a molten state is bound into clumpy glass again, and the clumpy glass is removed; (3) after stirring is finished, dry porous bamboo charcoal is added into the top of the smelting furnace, and heating is carried out; and (4) the nitrogen pressure continues to be kept at 0.6 MPa, and when no bubble emerges out of the smelting furnace, casting is carried out.
Description
Technical field
The present invention relates to alloy bushing technical field, and in particular to a kind of alloy bushing aluminium alloy smelting degassing method.
Background technology
Alloy is a kind of enhancement mode non-ferrous alloy, extensive due to good mechanical property, intensity and hardness
For Aero-Space, electronics industry, auto industry etc..
Alloy is often occurred in machine components with cast form, and alloy is mingled with impurity in melting and casting process, often
And gas, mainly hydrogen, make cast-internal form bubble, the quality of foundry goods is had a strong impact on, or even shrinkage cavity and porosity has occurred and showed
As.
The method of foundry goods degasification also has various ways, for example：Adsorption cleaning method, is with adsorbent, refining agent impurity screening
And gas；For example：Air blast, also known as blinster flotation method, for example：Flux method, flux is added in Si-Al melt, by Chemical Physics
Effect, field trash and hydrogen floating liquid level, then remove；For example：Filtration, with active material filter is made, and is separated and is suspended
Solid inclusions and gas in Si-Al melt；Also settled process, vacuum method, supercritical ultrasonics technology etc., but these methods are present not
The drawbacks of with degree, outgassing rate is not enough, drastically influence the quality of foundry goods.
The content of the invention
The present invention is intended to provide a kind of alloy bushing aluminium alloy smelting degassing method.
The present invention provides following technical scheme：
A kind of alloy bushing aluminium alloy smelting degassing method, comprises the following steps：
(1) after aluminium alloy is completely melt, cullet are initially charged in melting furnace bottom and add alloyed powder, it is logical to smelting furnace
Electricity so that the cullet are wrapped up after alloyed powder fusing, and makes its melting be liquid glass, be sufficiently stirred for iron staff；
(2) while stirring, start the logical high pressure nitrogen in aluminium alloy and be allowed to uniform, nitrogen pressure is 0.6MPa, fusion
Melt to after completely, sprinkling sand at the top of smelting furnace, the glass of molten state bonds in bulk again, and the glass of in bulk is pulled out；
(3) after stirring is finished, dry stephanoporate bamboo charcoal is added at the top of smelting furnace, and is heated；
(4) continue to keep nitrogen pressure to be 0.6MPa, when bubble-free is emerged in wait smelting furnace, cast.
The addition of the cullet is the 5% of alloyed powder gross weight.
Foundry goods after the casting is naturally cool but to 250-300 DEG C.
The temperature control of casting is at 1460-1580 DEG C in the step (4).
Compared with prior art, the invention has the beneficial effects as follows：The degasification method of the present invention have it is simple, efficiently, it is quick,
Precisely degassing effect, improve production efficiency, the features such as reduce production cost.
Specific embodiment
Below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described,
Obviously, described embodiment is only a part of embodiment of the invention, rather than the embodiment of whole.Based in the present invention
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all
Belong to the scope of protection of the invention.
A kind of alloy bushing aluminium alloy smelting degassing method, comprises the following steps：
(1) after aluminium alloy is completely melt, cullet are initially charged in melting furnace bottom and add alloyed powder, it is logical to smelting furnace
Electricity so that the cullet are wrapped up after alloyed powder fusing, and makes its melting be liquid glass, be sufficiently stirred for iron staff；
(2) while stirring, start the logical high pressure nitrogen in aluminium alloy and be allowed to uniform, nitrogen pressure is 0.6MPa, fusion
Melt to after completely, sprinkling sand at the top of smelting furnace, the glass of molten state bonds in bulk again, and the glass of in bulk is pulled out；
(3) after stirring is finished, dry stephanoporate bamboo charcoal is added at the top of smelting furnace, and is heated；
(4) continue to keep nitrogen pressure to be 0.6MPa, when bubble-free is emerged in wait smelting furnace, cast.
The addition of the cullet is the 5% of alloyed powder gross weight.
Foundry goods after the casting is naturally cool but to 250-300 DEG C.
The temperature control of casting is at 1460-1580 DEG C in the step (4).
It is obvious to a person skilled in the art that the invention is not restricted to the details of the one exemplary embodiment, Er Qie
In the case of spirit or essential attributes without departing substantially from the present invention, the present invention can be in other specific forms realized.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit is required rather than the explanation is limited, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Moreover, it will be appreciated that although this specification is been described by according to embodiment, not each
Embodiment only includes an independent technical scheme, and this narrating mode of description is only this area for clarity
Technical staff should using description as an entirety, the technical scheme in each embodiment can also Jing it is appropriately combined, form this
Art personnel may be appreciated other embodiment.
Claims (4)
1. a kind of alloy bushing aluminium alloy smelting degassing method, it is characterised in that comprise the following steps：
(1) after aluminium alloy is completely melt, cullet are initially charged in melting furnace bottom and add alloyed powder, be powered to smelting furnace,
So that wrapping up the cullet after alloyed powder fusing, and make its melting be liquid glass, be sufficiently stirred for iron staff；
(2) while stirring, start the logical high pressure nitrogen in aluminium alloy and be allowed to uniform, nitrogen pressure is 0.6MPa, waits to melt to
After completely, sand is sprinkled at the top of smelting furnace, the glass of molten state bonds in bulk again, and the glass of in bulk is pulled out；
(3) after stirring is finished, dry stephanoporate bamboo charcoal is added at the top of smelting furnace, and is heated；
(4) continue to keep nitrogen pressure to be 0.6MPa, when bubble-free is emerged in wait smelting furnace, cast.
2. a kind of alloy bushing aluminium alloy smelting degassing method according to claim 1, it is characterised in that the cullet
Addition for alloyed powder gross weight 5%.
3. a kind of alloy bushing aluminium alloy smelting degassing method according to claim 1, it is characterised in that after the casting
Foundry goods it is naturally cool but to 250-300 DEG C.
4. a kind of alloy bushing aluminium alloy smelting degassing method according to claim 1, it is characterised in that the step
(4) temperature control of casting is at 1460-1580 DEG C in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610979721.0A CN106566939A (en) | 2016-11-08 | 2016-11-08 | Smelting and degassing method for alloy liquid of alloy bush |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610979721.0A CN106566939A (en) | 2016-11-08 | 2016-11-08 | Smelting and degassing method for alloy liquid of alloy bush |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106566939A true CN106566939A (en) | 2017-04-19 |
Family
ID=58540349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610979721.0A Pending CN106566939A (en) | 2016-11-08 | 2016-11-08 | Smelting and degassing method for alloy liquid of alloy bush |
Country Status (1)
| Country | Link |
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| CN (1) | CN106566939A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107553070A (en) * | 2017-09-03 | 2018-01-09 | 安徽天裕汽车零部件制造有限公司 | A kind of high efficiency processing method of flange bushing |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104018015A (en) * | 2014-06-13 | 2014-09-03 | 四川法拉特不锈钢铸造有限公司 | Smelting degassing method of nickel alloy solution |
-
2016
- 2016-11-08 CN CN201610979721.0A patent/CN106566939A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104018015A (en) * | 2014-06-13 | 2014-09-03 | 四川法拉特不锈钢铸造有限公司 | Smelting degassing method of nickel alloy solution |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107553070A (en) * | 2017-09-03 | 2018-01-09 | 安徽天裕汽车零部件制造有限公司 | A kind of high efficiency processing method of flange bushing |
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Application publication date: 20170419 |
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| RJ01 | Rejection of invention patent application after publication |