CN1920078A - Manganese-free deformation magnesium alloy plate for etching/engraving and producing method threof - Google Patents
Manganese-free deformation magnesium alloy plate for etching/engraving and producing method threof Download PDFInfo
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- CN1920078A CN1920078A CN 200610107081 CN200610107081A CN1920078A CN 1920078 A CN1920078 A CN 1920078A CN 200610107081 CN200610107081 CN 200610107081 CN 200610107081 A CN200610107081 A CN 200610107081A CN 1920078 A CN1920078 A CN 1920078A
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- magnesium alloy
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Abstract
The invention relates the magnesium alloy sheet. The weight percents are as follows: Al: 2.5-3.5%, Zn: 0.7-1.2%, Mn: <= 0.004%, Ca: 0.015-0.06%, impurity<=0.040%, and the left is Mg. The method comprises the following steps: batching, shoving, smelting, the first removing slag, making hardener, adding hardener, the second removing slag, revolving furnace, refining, stewing, semi-continuous casting, saw cutting, surface milling, fault localization, homogenizing treatment, heating, hot-rolled, flattening, shearing, mat-forming treatment, and packing inspection. The product has stable quality and easy operation.
Description
Technical field
The present invention relates to technical field of nonferrous metal processing, relate to a kind of no manganese (Mn) deformed Mg (Mg) alloy sheets that is used for etching/engraving and preparation method thereof specifically.
Background technology
Be used for etching/engraving field at present and adopt copper, aluminium, stainless steel, titanium alloy and other metal mostly, even adopt stone material in addition, but these materials have preponderance, cost height respectively, defectives such as machinability is poor, corrodibility is poor, feel difference.
Summary of the invention
Because MAGNESIUM METAL has susceptibility-to-corrosion and good machinability, and advantage such as proportion is little, intensity is high, specific rigidity is high, dimensional stability is good, favored in etching/engraving field gradually, be often used in the mould of making ornament and the mould that paper tinsel is impressed, the mould that adopts no manganese magnesium alloy plate to make also has and can be produced rapidly, and can be very effective with advantages such as tool processes and machine manufacturings.
In addition manganese-free deformation magnesium alloy plate also is usually used in printing industry, is made into the printing magnesium version base of precoating special photosensitive coating, is used to print the cover package material of various greeting cards, folder, handbook and books.Other purposes of manganese-free deformation magnesium alloy plate also comprises makes famous brand, badge decoration, commendation award label and leather surface.
In view of market requirement present situation, the objective of the invention is to provides a kind of manganese-free deformation magnesium alloy plate that is used for etching/engraving and preparation method thereof to society.Be not no manganese by stricti jurise, but because unavoidable cause does not reach zero content, wherein manganese content is≤0.004% trace, so the industry is referred to as not have the manganese magnesium alloy.In the material composition of this technical scheme, because manganese is uneven distribution in continuous casting, the line of segragation usually appears, cause so-called segregation phenomena, can not be eliminated by machining deformation and thermal treatment, in addition also since manganese to have erosion resistance strong, be easy to cause the bad mass defects of product surface roughness such as uneven or pitted skin, but there is the manganese segregation merely and degree is little to the material influence when not really serious, so in making processes, reduce Mn content as far as possible.In the technical program Mn content in the magnesium alloy is strict controlled in minimum :≤0.004%, with the solidity to corrosion of further reduction magnesium alloy to improve the etch effect of magnesium alloy plate, the therefore purity of metal that strict control adds when batching.
Ca has the oxidation of Mg in melting of minimizing and the microporosity and the thinning microstructure of ingot structure, improves mechanical property.Ca content is controlled in the technical program :≤0.06%.
Zn can improve alloy strength and heat treatment reinforcement effect, can improve the plasticity of alloy when content is suitable, improves certain solidity to corrosion, and Zn content is controlled at 0.7～1.2% in the technical program.
AI is identical with the effect of Metal Zn, and AI content is controlled at 2.5～3.5% in the technical program.
For achieving the above object, the present invention has adopted following technical scheme:
A kind of manganese-free deformation magnesium alloy plate that is used for etching/engraving, it is characterized in that: its metal ingredient content is by weight: AI:2.5～3.5%, Zn:0.7～1.2%, Mn: Ca:0.015～0.06%≤0.004%,, and unavoidable impurities :≤0.040%, surplus is Mg, and the each component sum is absolutely.
The above-mentioned working method that is used for the manganese-free deformation magnesium alloy plate of etching/engraving of described making is characterized in that: adopt step to be: batching, and---------skimming for the first time,---------skimming for the second time,------refining---leaves standstill that------------------------aligning---is sheared---surface treatment---test package in hot rolling in heating in homogenizing thermal treatment in flaw detection to mill face in sawing in semicontinuous casting (flat ingot blank) to the preparation master alloy in converter to add master alloy in melting in shove charge.
Utilize Plastic Deformation and,, design different last pass working moduluses at the different thickness requirement of goods according to the processing characteristics of alloy.
By adopting above-mentioned technical scheme, the present invention has following advantage:
Can provide a kind of steady quality, product that precision is high to society, satisfy social needs; Have in light weight, cost is low, advantages such as machinability, corrodibility and good hand touch; And this method has characteristics such as the processing of being easy to, simple to operate, good control.
Description of drawings
Fig. 1 is a kind of working method schema that is used for the manganese-free deformation magnesium alloy plate of etching/engraving.
Embodiment
A kind of manganese-free deformation magnesium alloy plate that is used for etching/engraving and preparation method thereof, its metal ingredient content is by weight: AI:3%, Zn:1%, Mn: Ca:0.04%≤0.004%,, and unavoidable impurities :≤0.040%, surplus is Mg, the each component sum is absolutely.By following step the metal of choosing being prepared burden then,---------skimming for the first time,---------skimming for the second time,------refining---leaves standstill that---------------------------test package is produced qualified product to aligning to shear---surface treatment---in hot rolling in heating in homogenizing thermal treatment in flaw detection to mill face in sawing in semicontinuous casting (flat ingot blank) to the preparation master alloy in converter to add master alloy in melting in shove charge.
Embodiment 1:
The combined process flow process is that the manganese-free deformation magnesium alloy plate material of 5 * 1000 * 2000mm is that example describes with a kind of specification:
1 batching: the purity of alloying element that strict control adds, by weight promptly adopting high purity zinc, rafifinal, pure magnesium ingot, calcium to add with the form of Mg-Ca master alloy.All alloy materials of allocating into all should not have greasy dirt, no heavy corrosion, all should carry out preheating before adding, and make its thorough drying.Insulating covering agent adopts No. two solvents of powdery of market sale (by MgCl
2, main components such as KCl, BaCl, MgO form).
2, shove charge: will sprinkle one deck powdery barium fluxing agent in the smelting furnace equably earlier before the shove charge, then charging.Aluminium ingot, zinc ingot metal add with magnesium ingot.Spread one deck barium fluxing agent after having adorned again, begin the fusing that heats up then.
3, melting: smelting temperature adopts: 710 ℃.
4, the preparation master alloy: the preparation master alloy is Mg-Ca.Adopt sample scoop to take out the magnesium alloy liquation of molten state in the smelting furnace, add the powdery Ca-Al master alloy of market sale, stir, be scoriform until fusion and be placed in the room temperature and cool off while add in the magnesium alloy solution.The basis Ca content wherein and the injected volume of casting yield decision master alloy in the operation.
5, skim: treat to carry out skimming the first time after metal melts fully in the stove, should note preventing metal burning when skimming.If during burning, should extinguish it with No. two solvents immediately.Metal stirs not too bigly when skimming, and bits will be taken off to the greatest extent as far as possible, molten metal are not brought in the slag.
6, add the MgCa master alloy: the MgCa master alloy for preparing is put into smelting furnace and the melting that heats up, should note preventing metal burning in the melting, during as if burning, should extinguish it with No. two solvents immediately.
7, skim for the second time: when temperature rises to 750 ℃, take off slag for the second time again.Should note preventing metal burning when skimming.If during burning, should extinguish it with No. two solvents immediately.Metal stirs not too bigly when skimming, and bits will be taken off to the greatest extent as far as possible, metal are not brought in the slag.Thoroughly stir after skimming, carry out sampling analysis after leaving standstill a little time, and carry out the composition adjustment, material and addition are added in the as requested decision according to analytical results.
8, converter: after temperature reaches 750 ℃, the chemical ingredients of solution meets composition and requires to carry out converter after the standard after testing, each component content is AI:3%, Zn:0.7%, Mn:0.003%, Ca:0.015%, unavoidable impurities: 0.04%, surplus is Mg, and each component sum is absolutely; Adopt pump of constant delivery type or siphonage or static pressure drop method to change metallic solution over to holding furnace from smelting furnace.
9, refining: in holding furnace, carry out refining, 730 ℃ of refining temperatures, No. two solvents of powdery that adopt market sale are (by MgCl
2, main components such as KCl, BaCl, MgO form) carry out refining as refining agent, its usage quantity melt per ton: 10Kg, refining time 10 minutes.
10, leave standstill: be no less than 60 minutes leave standstill after refining is finished, begin casting afterwards.
11, casting: adopt semicontinuous casting, casting temp: 720 ℃, casting speed: 3 meters/hour.
12, sawing: adopt sawing machine that ingot casting is carried out sawing by dimensional requirement and become ingot blank.
13, mill face: the ingot blank after adopting milling machine to sawing mills face.
14, flaw detection; Adopt defect-detecting equipment that the ingot blank that mills behind the face is detected a flaw.
15, homogenizing is handled: place soaking pit to carry out homogenizing to the ingot blank after qualified of detecting a flaw and handle 410 ℃ of treatment temps, soaking time 14 hours.In air, carry out naturally cooling then
16, heating: adopt the ingot blank after the resistance chain type process furnace that has air cycle is handled homogenizing to heat, should remove the burr and the overlap of ingot blank before the heating.When the air circulating oven internal heating, should avoid tuyere zone.480 ℃ of Heating temperatures.
17, hot rolling: adopt double-roll rolling mill to carry out hot rolling, in the total pass reduction of given finish to gauge, be rolled to product thickness, hot-rolled temperature: 420 ℃.
18, aligning: adopt straightener that sheet material is aligned.
19, shear: adopt shears to shear.
20, surface treatment: the sheet material behind the aligning is carried out surface treatment.
21, test package: the sheet material after the surface treatment tested carry out the packing of product after qualified.
SF is all adopted in melting to casting
6, N
2Mixed gas is protected.
Embodiment 2:
The combined process flow process with a kind of specification is: the manganese-free deformation magnesium alloy plate material of 10 * 600 * 1000mm is that example describes:
1, batching: the purity of alloying element that strict control adds, by weight promptly adopting high purity zinc, rafifinal, pure magnesium ingot, calcium to add with the form of Mg-Ca master alloy.All alloy materials of allocating into all should not have greasy dirt and do not have heavy corrosion, all should carry out preheating before adding, make its thorough drying.Insulating covering agent adopts No. two solvents of powdery of market sale (by MgCl
2, main components such as KCl, BaCl, MgO form).
2, shove charge: will sprinkle one deck powdery barium fluxing agent in the smelting furnace equably earlier before the shove charge, then charging.Aluminium ingot, zinc ingot metal add with magnesium ingot.Spread one deck barium fluxing agent after having adorned again, begin the fusing that heats up then.
3, melting: smelting temperature adopts: 780 ℃.
4, the preparation master alloy: the preparation master alloy is Mg-Ca.Adopt sample scoop to take out the magnesium alloy liquation of molten state in the smelting furnace, add the powdered Ca-Al master alloy of market sale, stir, be scoriform until fusion and be placed in the room temperature and cool off while add in the magnesium alloy solution.The basis Ca content wherein and the injected volume of casting yield decision master alloy in the operation.
5, skim: treat to carry out skimming the first time after metal melts fully in the stove, should note preventing metal burning when skimming.If during burning, should extinguish it with No. two solvents immediately.Metal stirs not too bigly when skimming, and bits will be taken off to the greatest extent as far as possible, molten metal are not brought in the slag.
6, add the MgCa master alloy: the master alloy for preparing is put into smelting furnace and the melting that heats up, should note preventing metal burning in the melting, during as if burning, should extinguish it with No. two solvents immediately.
7, skim for the second time: when temperature rises to 770 ℃, take off slag for the second time again.Should note preventing metal burning when skimming.If during burning, should extinguish it with No. two solvents immediately.Metal stirs not too bigly when skimming, and bits will be taken off to the greatest extent as far as possible, metal are not brought in the slag.Thoroughly stir after skimming, carry out sampling analysis after leaving standstill a little, and carry out the composition adjustment, material and addition are added in the as requested decision according to analytical results.
8, converter: after temperature reaches 770 ℃, the chemical ingredients of solution meets composition and requires to carry out converter after the standard after testing, each component content is AI:2.5%, Zn:1%, Mn:0.0031%, Ca:0.05%, and unavoidable impurities: 0.04%, surplus is Mg, and the each component sum is absolutely; Adopt pump of constant delivery type or siphonage or static pressure drop method to change metallic solution over to holding furnace from smelting furnace.
9, refining: in holding furnace, carry out refining, 760 ℃ of refining temperatures, No. two solvents of powdery that adopt market sale are (by MgCl
2, main components such as KCl, BaCl, MgO form) carry out refining as refining agent, its usage quantity melt per ton: 20Kg, refining time: 20 minutes.
10, leave standstill: be no less than 60 minutes leave standstill after refining is finished, begin casting afterwards.
11, casting: adopt semicontinuous casting, casting temp: 745 ℃, casting speed: 4 meters/hour.
12, sawing: adopt sawing machine that ingot casting is carried out sawing by dimensional requirement and become ingot blank.
13, mill face: the ingot blank after adopting milling machine to sawing mills face.
14, flaw detection; Adopt defect-detecting equipment that the ingot blank that mills behind the face is detected a flaw.
15, homogenizing is handled: place soaking pit to carry out homogenizing to the ingot blank after qualified of detecting a flaw and handle 430 ℃ of treatment temps, soaking time 24 hours.In air, carry out naturally cooling then
16, heating: adopt the ingot blank after the resistance chain type process furnace that has air cycle is handled homogenizing to heat, should remove the burr and the overlap of ingot blank before the heating.When the air circulating oven internal heating, should avoid tuyere zone.510 ℃ of Heating temperatures.
17, hot rolling: adopt double-roll rolling mill to carry out hot rolling, in the total pass reduction of given finish to gauge, be rolled to product thickness, hot-rolled temperature: 470 ℃.
18, aligning: adopt straightener that sheet material is aligned.
19, shear: adopt shears to shear.
20, surface treatment: the sheet material behind the aligning is carried out surface treatment.
21, test package: the sheet material after the surface treatment tested carry out the packing of product after qualified.
SF is all adopted in melting to casting
6, N
2Mixed gas is protected.
Claims (7)
1, a kind of manganese-free deformation magnesium alloy plate that is used for etching/engraving, it is characterized in that: its metal ingredient content is by weight: Al:2.5～3.5%, Zn:0.7～1.2%, Mn: Ca:0.015～0.06%≤0.004%,, and unavoidable impurities :≤0.040%, surplus is Mg, and the each component sum is absolutely.
2, a kind ofly make the above-mentioned working method that is used for the manganese-free deformation magnesium alloy plate of etching/engraving, it is characterized in that: adopt step to be: batching that---------skimming for the first time,---------skimming for the second time,------refining---leaves standstill that------------------------aligning---is sheared---surface treatment---test package in hot rolling in heating in homogenizing thermal treatment in flaw detection to mill face in sawing in semicontinuous casting (flat ingot blank) to the preparation master alloy in converter to add master alloy in melting in shove charge.
3, a kind of working method that is used for the manganese-free deformation magnesium alloy plate of etching/engraving according to claim 2, it is characterized in that: described preparation Mg-Ca master alloy is a magnesium alloy liquation of getting molten state in smelting furnace, powdered Ca-Al master alloy is stirred while adding in the magnesium alloy solution, be scoriform until fusion and be placed in the room temperature and cool off.
4, a kind of working method that is used for the manganese-free deformation magnesium alloy plate of etching/engraving according to claim 2 is characterized in that: described calcium is with the form adding of Mg-Ca master alloy and strict control Ca content; According to the injected volume of Ca content in the melt and casting yield decision master alloy, Ca content is controlled at 0.015～0.06% in the operation.
5, a kind of working method that is used for the manganese-free deformation magnesium alloy plate of etching/engraving according to claim 2, it is characterized in that: described refining temperature is: 730～760 ℃; Refining agent usage quantity 10～20Kg per ton; Refining time: 10～20 minutes.
6, a kind of working method that is used for the manganese-free deformation magnesium alloy plate of etching/engraving according to claim 2, it is characterized in that: described metal melt time of repose is cast after being no less than 60 minutes.
7, a kind of working method that is used for the manganese-free deformation magnesium alloy plate of etching/engraving according to claim 2 is characterized in that: described casting temp: 720～745 ℃, and casting speed: 3～4 meters/hour.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2006101070810A CN100467646C (en) | 2006-09-21 | 2006-09-21 | Manganese-free deformation magnesium alloy plate for etching/engraving and producing method threof |
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| CNB2006101070810A CN100467646C (en) | 2006-09-21 | 2006-09-21 | Manganese-free deformation magnesium alloy plate for etching/engraving and producing method threof |
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| CN1920078A true CN1920078A (en) | 2007-02-28 |
| CN100467646C CN100467646C (en) | 2009-03-11 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101648210B (en) * | 2009-08-28 | 2011-10-26 | 中铝洛阳铜业有限公司 | Processing method for rolling magnesium alloy plate with low temperature, high speed and large processing amount |
| CN104384229A (en) * | 2014-12-15 | 2015-03-04 | 西南铝业（集团）有限责任公司 | Machining process of thick 5083 aluminum alloy plate for ships |
-
2006
- 2006-09-21 CN CNB2006101070810A patent/CN100467646C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101648210B (en) * | 2009-08-28 | 2011-10-26 | 中铝洛阳铜业有限公司 | Processing method for rolling magnesium alloy plate with low temperature, high speed and large processing amount |
| CN104384229A (en) * | 2014-12-15 | 2015-03-04 | 西南铝业（集团）有限责任公司 | Machining process of thick 5083 aluminum alloy plate for ships |
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| Publication number | Publication date |
|---|---|
| CN100467646C (en) | 2009-03-11 |
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