CN104988340B - Many pores go bad sintered metal additive, its preparation method and application - Google Patents
Many pores go bad sintered metal additive, its preparation method and application Download PDFInfo
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- CN104988340B CN104988340B CN201510302025.1A CN201510302025A CN104988340B CN 104988340 B CN104988340 B CN 104988340B CN 201510302025 A CN201510302025 A CN 201510302025A CN 104988340 B CN104988340 B CN 104988340B
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Abstract
The present invention relates to many pores go bad sintered metal additive, its preparation method and application, be made up of the raw material of following mass fraction: the alloying element of 99.6%, the paraffin of 0.2%, the ammonium hydrogen carbonate of 0.1%, 0.05% stearic acid and 0.05% potassium nitrate；Described alloying element adds in powder form.The proportioning composition of the present invention can melt rapidly, environmental protection, solvent-free, without aluminium powder, nontoxic, do not change aluminium alloy crystal structure.
Description
Technical field
The invention belongs to aluminium alloy processing additive field, be specifically related to many pores and go bad sintered metal additive.
Background technology
Aluminium alloy has light weight, specific strength and specific stiffness height, corrosion resisting property is good, nonmagnetic, forming performance is good, low
Warm nature can the feature such as good and recuperability, be widely used in Aero-Space, transportation, electric power and electronics, building, container bag
The industry manufacture field such as dress and petrochemical industry.
Aluminium alloy additive is mainly used in adjusting al alloy component, is typically added flux by alloy powder or aluminium powder adds and fluxes
Agent forms.Commonly use the conventional additive that halogenide salt is flux both at home and abroad.Although it solves to close in the middle of aluminum base
The problem that gold mode is added, but containing elements such as substantial amounts of sodium, chlorine, fluorine, not only cause environment pollution, also have a strong impact on human body
Health, and the addition of flux affects aluminium alloy crystal structure, affects aluminium alloy capability to a certain extent.In additive
Flux is factor disadvantageous to aluminium alloy, the most how to remove the flux in additive, becomes an important topic.
Summary of the invention
The invention aims to solve existing aluminium alloy additive energy resource consumption and greatly and environment, human body are caused serious dirt
Dye and the problem that affect aluminum alloy material, it is provided that many pores go bad sintered metal additive, provide simultaneously its preparation method with
Application.
The present invention realizes the technical scheme that its purpose uses: a kind of many pores go bad sintered metal additive, by as follows
Mass fraction raw material composition: the alloying element of 99.6%, the paraffin of 0.2%, the ammonium hydrogen carbonate of 0.1%, 0.05% stearic acid and
0.05% potassium nitrate.
Preferably, any one during described alloying element is ferrum, manganese, copper, titanium, nickel and chromium.
The present invention relates to the preparation method of described metallic addition, for being mixed by proportioning by described raw material；Described alloy unit
Element adds in powder form.
The invention still further relates to the application in prepared by aluminium alloy of the described metallic addition.
Further, described metallic addition is the 0.1%-1.5% of raw material aluminum mass fraction.
Further, described metallic addition joins in melted aluminum liquid at 730 DEG C.
Alloying element of the present invention is the required element added of aluminium alloy.
The proportioning composition of the present invention can melt rapidly, environmental protection, solvent-free, without aluminium powder, nontoxic, do not change aluminium alloy crystal
Structure；Additive purity of the present invention is high, and impurity is few, without changing the factor of aluminium alloy structure, thus solves the dirt that aluminium alloy produces
Dye, cost are high, the problem of poor quality, and preparation process is simple, is that instead of the ideal material of metallic addition, can be widely applied to
Aluminium alloy manufactures, and eliminates impurity to aluminium alloy qualitative effects.
Detailed description of the invention
Below in conjunction with specific embodiment, technical scheme is described further.
Embodiment
Described in the present embodiment, percent is mass fraction.
Embodiment 1-6
The alloy powder addition of 99.6% is broken into, to roller or hammer mill, the powder that granularity is 100 microns, adds
Paraffin powder, 0.1% ammonium hydrogen carbonate, 0.05% stearic acid and 0.05% potassium nitrate of 0.2%, by mixing equipment mixing and stirring,
Make mixture；Mixture is cold-pressed into nahlock shape, and diameter 30mm ~ 80mm, height are that the thin slice of 2mm i.e. obtains product.
Alloy powder in embodiment 1-6 such as table 1.
Alloy powder in table 1 embodiment 1-6
The principle of the present invention is: the alloyed metal powder of 99.6% is matrix, i.e. the metal of aluminium alloy desired additives, as
Ferrum, manganese, copper, titanium, nickel or chromium, for adjusting the metal ingredient in aluminium alloy, to reach the different performance demand of aluminium alloy；0.2%
Paraffin powder and 0.1% ammonium hydrogen carbonate be pore creating material, 0.05% stearic acid is releasing agent, 0.05% potassium nitrate thermal decomposition after produce
Oxygen adds fast response, for catalyst.Powder pressing said ratio being blended becomes diameter 30mm ~ 80mm, height is the thin of 2mm
Sheet, after putting into this additive in 730 degree of melted aluminum liquid, the paraffin powder of 0.2% and the ammonium hydrogen carbonate decomposes of 0.1% are volatilized,
Making to be formed in additive block evenly distributed pore, aluminum liquid enters infiltration metal dust from pore, and 0.05% potassium nitrate is heated point
Solve, make oxygen content increase, accelerate fusion of metal powder reaction.Make metal be melted in rapidly in the middle of aluminum liquid, form aluminium alloy.Due to
This additive purity is high, and impurity is few, and the most pollution-free, nothing changes the factor of aluminium alloy structure, thus solves what aluminium alloy produced
Pollute, cost is high, the problem of poor quality.
Purity of the present invention is high, pollution-free, is applied to aluminium alloy manufacture and can eliminate impurity to aluminium alloy qualitative effects, is generation
Ideal material for metallic addition.
Comparative example
The preparation method of conventional additive is: metal dust 60% ~ 85%+ flux 40% of addition element needed for aluminium alloy ~
Briquet after 15% mixing.
Comparative example 1-6 added alloying metal element and mass fraction such as table 2.
Table 2 comparative example 1-6 composition
Experimental example
Embodiment 2 is added respectively with comparative example 2 products obtained therefrom in aluminium alloy preparation process 730 DEG C of melted aluminum liquid
In, the quality such as table 3 of detection gained aluminium alloy.Table is by comparative example 2 conventional additive Mn75%Flux25% and embodiment more than 2
The pore sintered metal additive (Mn) that goes bad does the comparison and detection result of 3A21 grade aluminium alloy respectively:
Table 3 embodiment 2 and the testing result of comparative example 2
Note: 1,3A21 grade aluminium alloy requires that Mn desired value is 1.25%；
2, aluminum water gross weight 1 ton.
Claims (5)
1. pore more than a kind goes bad sintered metal additive, it is characterised in that be made up of the raw material of following mass fraction: 99.6%
Alloying element, the paraffin of 0.2%, the ammonium hydrogen carbonate of 0.1%, 0.05% stearic acid and 0.05% potassium nitrate；Described alloying element is
Any one in ferrum, manganese, copper, titanium, nickel and chromium；This additive is for being cold-pressed into nahlock shape.
2. the preparation method of the metallic addition described in claim 1, it is characterised in that described raw material is mixed by proportioning, institute
State alloying element to add in powder form；By mixing equipment mixing and stirring, make mixture；Mixture is cold-pressed into circle
Block.
3. the application in prepared by aluminium alloy of the metallic addition described in claim 1.
Application the most according to claim 3, it is characterised in that the addition quality of described metallic addition is raw material aluminum quality
0.1%-1.5%.
Application the most according to claim 3, it is characterised in that described metallic addition joins melted aluminum at 730 DEG C
In liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510302025.1A CN104988340B (en) | 2015-06-05 | 2015-06-05 | Many pores go bad sintered metal additive, its preparation method and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510302025.1A CN104988340B (en) | 2015-06-05 | 2015-06-05 | Many pores go bad sintered metal additive, its preparation method and application |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104988340A CN104988340A (en) | 2015-10-21 |
| CN104988340B true CN104988340B (en) | 2017-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510302025.1A Active CN104988340B (en) | 2015-06-05 | 2015-06-05 | Many pores go bad sintered metal additive, its preparation method and application |
Country Status (1)
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105838909A (en) * | 2016-05-27 | 2016-08-10 | 沧州市东众特种合金制造有限公司 | Preparation method for solvent-free aluminum-free aluminum alloy additive |
| CN109207750A (en) * | 2018-09-20 | 2019-01-15 | 江苏锐阳照明电器设备有限公司 | A kind of high hardness aluminium alloy melting metallic addition and application method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2569146A (en) * | 1949-11-30 | 1951-09-25 | American Metaliurgical Product | Metallurgical addition agent |
| CN1017353B (en) * | 1989-04-03 | 1992-07-08 | 中国科学院金属研究所 | Additive for smelting aluminium alloy |
| CN101597700A (en) * | 2009-07-02 | 2009-12-09 | 河北工业大学 | The additive and the methods for making and using same thereof that are used for smelting aluminium alloy |
| CN102618743A (en) * | 2011-01-28 | 2012-08-01 | 北京有色金属研究总院 | Additive for aluminum alloy melting |
| CN104032150A (en) * | 2014-07-02 | 2014-09-10 | 正邦（福建）冶金材料有限公司 | Formula and preparation method of aluminum type aluminum alloy additive |
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2015
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Effective date of registration: 20191114 Address after: 1500001 Sanjia village, Pingxin Town, Pingfang District, Harbin City, Heilongjiang Province Patentee after: HARBIN DONGSHENG METAL CO.,LTD. Address before: 061000 11A, Beihai Road, Cangzhou Development Zone, Hebei, China Patentee before: CANGZHOU DONSHENG METAL ADDING AGENT MANUFACTURING Co.,Ltd. |
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Address after: No.1 Dongsheng Road, Pingfang District, Harbin City, Heilongjiang Province Patentee after: Harbin Dongsheng Jincai Technology Co.,Ltd. Address before: 150001 Sanjia village, Pingxin Town, Pingfang District, Harbin City, Heilongjiang Province Patentee before: HARBIN DONGSHENG METAL Co.,Ltd. |
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Address after: No.1 Dongsheng Road, Pingfang District, Harbin City, Heilongjiang Province Patentee after: Harbin Dongsheng Jincai Technology (Group) Co.,Ltd. Address before: No.1 Dongsheng Road, Pingfang District, Harbin City, Heilongjiang Province Patentee before: Harbin Dongsheng Jincai Technology Co.,Ltd. |