CN109868379A - A kind of high-cleanness, high and high-precision alloy aluminium bar preparation method - Google Patents
A kind of high-cleanness, high and high-precision alloy aluminium bar preparation method Download PDFInfo
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- CN109868379A CN109868379A CN201910201953.7A CN201910201953A CN109868379A CN 109868379 A CN109868379 A CN 109868379A CN 201910201953 A CN201910201953 A CN 201910201953A CN 109868379 A CN109868379 A CN 109868379A
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- aluminium bar
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Abstract
The invention discloses a kind of high-cleanness, highs and high-precision alloy aluminium bar preparation method, check first equipment, it is ensured that each equipment can work normally, without security risk；Then, it is checked again after being preheated to smelting furnace；Third is heated raw material after evenly mixing is successively put into smelting furnace, and completes operation of skimming；4th, refining agent is added into molten aluminum by purifier, molten aluminum is refined, carries out operation of skimming after refining again；5th, the aluminium alloy solution for completing melting is poured into mold, obtains the first aluminium bar after cooling, demoulding；6th, homogenization is carried out to the first aluminium bar and obtains the second aluminium bar；7th, the second aluminium bar is carried out to squeeze acquisition target aluminium bar under conditions of gradient-heated.Beneficial effect is: a deslagging is executed in advance before refining, so that the resulting aluminium bar of melting cleanliness with higher；Moreover, by homogenization and gradient-heated extrusion process is used, so that aluminium bar product precision with higher.
Description
Technical field
The present invention relates to aluminium preparation process fields, and in particular to a kind of high-cleanness, high and high-precision alloy aluminium bar preparation side
Method.
Background technique
Aluminium is that one kind great light metal of amount in the Nature is not only weighed with special chemistry, physical characteristic
Amount is light, quality is hard and has good ductility, electric conductivity, thermal conductivity, heat resistance and resistance to nuclear radiation, is national economy
The important foundation raw material of development.Impurity content during aluminium alloy produces will affect the performance of aluminium alloy, and with
The application scenarios of aluminium bar product constantly extend, also higher and higher to the required precision of finished product aluminium bar.Therefore, it is necessary to a kind of production is clean
The aluminium bar preparation method that cleanliness is high, Product Precision is high.
Summary of the invention
The object of the invention is that providing a kind of high-cleanness, high and high-precision alloy aluminium bar to solve the above-mentioned problems
Preparation method.
The present invention through the following technical solutions to achieve the above objectives:
A kind of high-cleanness, high and high-precision alloy aluminium bar preparation method, comprising the following steps:
Step 1: smelting furnace, refining equipment, Intermediate Frequency Induction Heating Equipment, extrusion equipment being checked before igniting, it is ensured that each
Equipment can work normally, without security risk；
Step 2: igniting closes fire after preheating 5min to smelting furnace, opens smelting furnace fire door and checks again smelting furnace；
Step 3: raw material after evenly mixing successively being put into smelting furnace and is heated, and uses creeper after melting with raw material
10~15min is sufficiently stirred to molten aluminum according to " N " shape path, then with skim creeper gently by the lime-ash on Aluminum surface from it is inner to
It takes off outside, completes operation of skimming；
Step 4: refining agent is added into molten aluminum by purifier, molten aluminum is refined, refining agent passes through high pressure nitrogen band
Enter in smelting furnace, purifier is taken out after the completion of refining, and carries out operation of skimming as described in step 3 again；
Step 5: the aluminium alloy solution for completing melting being poured into mold, obtains the first aluminium bar after cooling, demoulding；
Step 6: homogeneous being carried out to the first aluminium bar, puts it into Medium Frequency Induction Heating Furnace, nitrogen is added thereto, first adjusts
Save Medium Frequency Induction Heating Furnace power be 100kW heat 20min, by power be adjusted to 130kW heating 10min, hereafter every
100kW is turned up in heating power by 10min, until aluminium bar temperature keeps the temperature 10-14 hours after being 470-490 DEG C, then is naturally cooled to
Room temperature obtains the second aluminium bar；
Step 7: being put into the second aluminium bar after extrusion die and extrusion cylinder preheating, pressurizing mold and extrusion cylinder are heated to 430-
480 DEG C are squeezed, and soaking time is 4-6 hours, obtain target aluminium bar.
Preferably, being heated when squeezing the second aluminium bar using gradient-heated mode, temperature gradient 5-
10℃。
Preferably, extrusion speed is 0.3-0.5m/min, product outlet temperature is not less than 420 DEG C.
Beneficial effect is: smelting technology of the present invention executes a deslagging in advance before refining, and carries out nitrogen guarantor
The refining of shield, so that the resulting aluminium bar of melting cleanliness with higher；Moreover, being squeezed by homogenization and using gradient-heated
Pressure technique, the aluminium bar being not only performance with higher, and aluminium bar product precision with higher obtained.
Specific embodiment
Below with reference to embodiment, the invention will be further described:
Embodiment
When preparing aluminium bar using a kind of high-cleanness, high and high-precision alloy aluminium bar preparation method, smelting furnace, refining are set first
Standby, Intermediate Frequency Induction Heating Equipment, extrusion equipment are checked, it is ensured that each equipment can work normally, without security risk；Then, right
It is checked again after smelting furnace preheating；Third is heated raw material after evenly mixing is successively put into smelting furnace, and
15min is sufficiently stirred to molten aluminum according to " N " shape path with creeper after melting with raw material, then with creeper of skimming gently by Aluminum
The lime-ash on surface is taken off from inside to outside, completes operation of skimming；4th, refining agent is added into molten aluminum by purifier, molten aluminum is carried out
Refining, refining agent are brought into smelting furnace by high pressure nitrogen, purifier are taken out after the completion of refining, and carry out operation of skimming again；The
Five, the aluminium alloy solution for completing melting is poured into mold, obtains the first aluminium bar after cooling, demoulding；6th, to the first aluminium bar into
Row homogenization obtains the second aluminium bar；7th, the second aluminium bar is carried out to squeeze acquisition target aluminium bar under conditions of gradient-heated.
The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, and the above embodiments and description only describe originals of the invention
Reason, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes and improvements
It all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appending claims and equivalents circle
It is fixed.
Claims (3)
1. a kind of high-cleanness, high and high-precision alloy aluminium bar preparation method, it is characterised in that: the following steps are included:
Step 1: smelting furnace, refining equipment, Intermediate Frequency Induction Heating Equipment, extrusion equipment being checked before igniting, it is ensured that each equipment
It can work normally, without security risk；
Step 2: igniting closes fire after preheating 5min to smelting furnace, opens smelting furnace fire door and checks again smelting furnace；
Step 3: raw material after evenly mixing is successively put into smelting furnace and is heated, and after melting with raw material with creeper according to
10~15min is sufficiently stirred to molten aluminum in " N " shape path, then with skim creeper gently by the lime-ash on Aluminum surface from inside to outside
It takes off, completes operation of skimming；
Step 4: refining agent is added into molten aluminum by purifier, molten aluminum is refined, refining agent is brought into molten by high pressure nitrogen
In furnace, purifier is taken out after the completion of refining, and carries out operation of skimming as described in step 3 again；
Step 5: the aluminium alloy solution for completing melting being poured into mold, obtains the first aluminium bar after cooling, demoulding；
Step 6: homogeneous being carried out to the first aluminium bar, puts it into Medium Frequency Induction Heating Furnace, nitrogen is added thereto, first in adjusting
The power of frequency induction heater is that 100kW heats 20min, and power is being adjusted to 130kW heating 10min, hereafter will every 10min
100kW is turned up in heating power, until aluminium bar temperature keeps the temperature 10-14 hours after being 470-490 DEG C, then cooled to room temperature obtains
Second aluminium bar；
Step 7: being put into the second aluminium bar after extrusion die and extrusion cylinder preheating, pressurizing mold and extrusion cylinder are heated to 430-480
It DEG C is squeezed, soaking time is 4-6 hour, acquisition target aluminium bar.
2. a kind of high-cleanness, high according to claim 1 and high-precision alloy aluminium bar preparation method, it is characterised in that: to
It when two aluminium bars are squeezed, is heated using gradient-heated mode, temperature gradient is 5-10 DEG C.
3. a kind of high-cleanness, high according to claim 1 and high-precision alloy aluminium bar preparation method, it is characterised in that: squeeze
Speed is 0.3-0.5m/min, and product outlet temperature is not less than 420 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910201953.7A CN109868379A (en) | 2019-03-18 | 2019-03-18 | A kind of high-cleanness, high and high-precision alloy aluminium bar preparation method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910201953.7A CN109868379A (en) | 2019-03-18 | 2019-03-18 | A kind of high-cleanness, high and high-precision alloy aluminium bar preparation method |
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| CN109868379A true CN109868379A (en) | 2019-06-11 |
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| CN201910201953.7A Pending CN109868379A (en) | 2019-03-18 | 2019-03-18 | A kind of high-cleanness, high and high-precision alloy aluminium bar preparation method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111957760A (en) * | 2020-08-11 | 2020-11-20 | 昆山市超群金属制品有限公司 | Production process of hard alloy aluminum bar |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1644736A (en) * | 2005-01-21 | 2005-07-27 | 中南大学 | 6063 aluminium alloy with high strength and elongation coefficient an dproduction thereof |
| CN107974581A (en) * | 2017-12-12 | 2018-05-01 | 河南胜华电缆集团有限公司 | A kind of cable High-conductivity creep-resistant aluminum-alloy conductor and preparation method thereof |
-
2019
- 2019-03-18 CN CN201910201953.7A patent/CN109868379A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1644736A (en) * | 2005-01-21 | 2005-07-27 | 中南大学 | 6063 aluminium alloy with high strength and elongation coefficient an dproduction thereof |
| CN107974581A (en) * | 2017-12-12 | 2018-05-01 | 河南胜华电缆集团有限公司 | A kind of cable High-conductivity creep-resistant aluminum-alloy conductor and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111957760A (en) * | 2020-08-11 | 2020-11-20 | 昆山市超群金属制品有限公司 | Production process of hard alloy aluminum bar |
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Application publication date: 20190611 |