CN1256452C - Tapping zinc alloy and preparation method - Google Patents
Tapping zinc alloy and preparation method Download PDFInfo
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- CN1256452C CN1256452C CNB2004100260217A CN200410026021A CN1256452C CN 1256452 C CN1256452 C CN 1256452C CN B2004100260217 A CNB2004100260217 A CN B2004100260217A CN 200410026021 A CN200410026021 A CN 200410026021A CN 1256452 C CN1256452 C CN 1256452C
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Abstract
The present invention relates to a tapping zinc alloy and a preparation method thereof. The tapping zinc alloy is prepared from 5 to 28 wt% of aluminum, 0.8 to 2.5 wt% of copper, 0.01 to 0.03 wt% of magnesium, no more than 0.1 wt% of ferrum, no more than 0.02 wt% of stannum, no more than 0.003 wt% of cadmium, no more than 0.004 wt% of lead and zinc as the rest. The preparation method comprises: firstly, soluble particles, adhesives and organic solvents are uniformly mixed, put into a mould, compacted and then sintered into a precursor; secondly, molten zinc alloy is poured into a casting mould connected to a vacuum device, the vacuum device is started so as to make molten metal penetrate into particle gaps in the precursor, and a casting blank compounded from the metal and the precursor is taken out when the casting mould is cooled; finally, the precursor is removed by being dissolved in water so as to obtain the tapping zinc alloy.
Description
Technical field
The present invention relates to non-ferrous metal and preparation method thereof, belong to casting technology field.
Background technology
Porous metal material can be divided into perforate and closed pore two big classes by the type in hole.The method of existing preparation porous metal has casting, metal lining method, powder metallurgic method and sputter deposited method four big classes, and wherein casting has very big advantage with characteristics such as its technology are simple, with low cost.Casting mainly comprises the molten metal foaming, adds hollow ball material method, particle THROUGH METHOD, lost wax process etc., and preceding two kinds of methods are suitable for preparing the closed-cell foam metal, and back two kinds of methods can be used for preparing the open celled foam metal.Lost wax process technical process complexity; constant product quality is not good enough; particle seepage flow casting technique is simple; but present method is not easy to control to the adjusting of pore size and porous nickel; adopt the pressure index method to come evaluated error bigger to particulate consolidation degree; seepage flow can float to particle in addition, and existing process method is mostly at aluminium alloy.
Summary of the invention
The purpose of this invention is to provide a kind of perforate zinc alloy and preparation method thereof.
The present invention is a kind of perforate zinc alloy, and by weight percentage, aluminium is 5～28%, and copper is 0.8～2.5%, magnesium is 0.01～0.03%, iron≤0.1%, tin≤0.02%, cadmium≤0.003%, plumbous≤0.004%, all the other are zinc, it is characterized in that it has vesicular structure.
Preferably, the variation range power 0.4～6mm in this perforate zinc alloy aperture.
Preferably, the relative density of this perforate zinc alloy is 0.1～0.4.
The preparation method of perforate zinc alloy, the solubility particle, binding agent and the organic solvent that at first with particle diameter are 0.4～6mm mix, the sintering of packing into behind the mould consolidation is again made precast body, to pour in the casting mold that is connected to vacuum apparatus by above-mentioned moiety preparation, the zinc alloy liquation that melts then, and the unlatching vacuum apparatus infiltrates in the interparticle space of precast body molten metal, after treating the casting mold cooling, take out metal and precast body compound strand, the last water-soluble precast body of removing makes to have obtained the perforate zinc alloy.
Binding agent in the precast body is a Repone K, and its weight percent is 7～14%, and surplus is a sodium-chlor solubility particle, and organic solvent is a dehydrated alcohol, and its volume percent is 1～3%.
Volume compressibility during the precast body consolidation is 15～25%, carries out sintering in 1～1.5 hour 580～640 ℃ of heating.
The teeming temperature of molten metal is 580～640 ℃, vacuum seepage pressure is-0.04～-0.08MPa, flow event continues 1～10 second.
Usefulness of the present invention:
Perforate zinc alloy of the present invention is a kind of new engineering material of structure-function integration.Research for porous metal at present focuses mostly on aluminium alloy, and zinc alloy is lower with its price, mechanical property, castability, machining property are good, the wear resistance height, founding is easy, save advantages such as the energy and pollution abatement, just progressively replace copper alloy and aluminium alloy etc., fully showed its excellent comprehensive performances as structured material.Simultaneously to have internal friction again big for zinc alloy, can absorb the characteristic of vibrational energy, can be used as damping material, and the structure of perforate will further be strengthened its vibration damping and energy-absorbing, thereby prepare high damping material.Therefore the zinc symphysis obviously is better than aluminium alloy on mechanics and functional performance.
The preparation method of perforate zinc alloy of the present invention compares with other preparation method, and it is easy to have technology, advantage with low cost; Different proportionings by reasonable control solubility particle, the sharp organic solvent of binding agent are prepared precast body and are carried out high temperature sintering, removed ash content effectively, make particle strong bond each other, particulate rising phenomenon when not only having improved the intensity of precast body but also having overcome seepage flow, make the adjusting of pore size and porous nickel be easy to control, can satisfy the needs of different use occasions; Proposed to measure easily with the index of volume compressibility as measurement precast body consolidation degree; The perforate zinc alloy machining property that is obtained is good, and the difficulty of required component is little, cost is low so be processed into.This perforate zinc alloy is suitable for the application scenario that vibration damping, noise reduction, filtration, separation, fire-retardant, heat radiation, catalysis, electromagnetic shielding etc. require, so it has broad application prospects at aspects such as the energy, communications and transportation, machinery, building, chemical industry, electronics, communication, environmental protection.It also can be used as the free persursor material of further preparation high damping composite material.
Embodiment
The present invention is a kind of perforate zinc alloy and preparation method thereof, comprise zinc and aluminium, wherein the weight percent of aluminium is 5～28%, also having weight percent simultaneously in this alloy is that 0.8～2.5% copper and weight percent are 0.01～0.03% magnesium, comprise also that in addition weight percent is not more than 0.1% iron, 0.02% tin, 0.003% cadmium and 0.004% lead respectively, surplus is a zinc.
The preparation of perforate zinc alloy is carried out as follows: at first be after 0.4～6mm sodium-chlor particle, Repone K (weight percent is 7～14%) and dehydrated alcohol (this is 1～3% for the volume percentage) mix with particle diameter, pack in the mould of getting ready, press 15～25% volume compressibility consolidation; Then put into 580～640 ℃ of heating in well formula crucible electrical resistance furnace inherence and carried out sintering in 1～1.5 hour; Secondly after the precast body casting mold that sinters and vacuum apparatus being assembled, pour into casting mold with being about to stand-by molten metal bath, teeming temperature is 580～640 ℃, opening vacuum apparatus simultaneously exerts pressure to casting mold, pressure is-0.04～-0.08MPa, molten metal is infiltrated in the interparticle space of precast body, and flow event carries out closing vacuum apparatus after 1～10 second; After treating that casting mold is controlled but, taking-up is of a size of metal and the precast body compound strand of φ (110～120) * (200～210) mm, and machine-tooled method routinely is processed into the disk of φ (105～115) * (3～10) mm again, rectangular, the profile of (5～10) * (5～10) * (50～60) mm is that φ (105～115) * (180～190) mm and wall thickness are the workpiece of several shape and size such as cylinder of (10～20) mm; At last workpiece is put into water earlier and is washed drying repeatedly, and then repeatedly boil, to guarantee the abundant precipitation of solubility particle, remove rich moisture after, put into loft drier and dry, so far just obtained the perforate zinc alloy.
According to the difference of selected solubility particle diameter, the variation range in prepared its aperture of perforate zinc alloy is 0.4～6mm, and relative density is 0.1～0.4, and yield strength is 12.6～19.8MPa, and the in-fighting value is 3.6 * 10
-2～6.7 * 10
-2
Claims (8)
1, a kind of perforate zinc alloy, by weight percentage, aluminium is 5～28%, and copper is 0.8～2.5%, and magnesium is 0.01～0.03%, iron≤0.1%, tin≤0.02%, cadmium≤0.003%, plumbous≤0.004%, all the other are zinc, it is characterized in that: it has vesicular structure.
2, perforate zinc alloy as claimed in claim 1 is characterized in that: the variation range in its aperture is 0.4～6mm.
3, perforate zinc alloy as claimed in claim 1 or 2 is characterized in that: its relative density is 0.1～0.4.
4, a kind of preparation method of perforate zinc alloy, it is characterized in that: at first solubility particle sodium-chlor, binding agent Repone K and organic solvent dehydrated alcohol are mixed, the sintering of packing into behind the mould consolidation is again made precast body, to pour in the casting mold that is connected to vacuum apparatus by the zinc alloy liquation of the described moiety preparation of claim 1, thawing then, and the unlatching vacuum apparatus infiltrates in the interparticle space of precast body molten metal, after treating the casting mold cooling, take out metal and precast body compound strand, the last water-soluble precast body of removing.
5, the preparation method of perforate zinc alloy as claimed in claim 4 is characterized in that: Repone K weight of binder per-cent is 7～14%, and surplus is a sodium-chlor solubility particle, and dehydrated alcohol organic solvent volume percent is 1～3%.
6, as the preparation method of claim 4 or 5 described perforate zinc alloys, it is characterized in that: the volume compressibility during the precast body consolidation is 15～25%, carries out sintering in 1～1.5 hour 580～640 ℃ of heating.
7, as the preparation method of claim 4 or 5 described perforate zinc alloys, it is characterized in that: the teeming temperature of molten metal is 580～640 ℃, vacuum seepage pressure is-0.04～-0.08MPa, flow event continues 1～10 second.
8, the preparation method of perforate zinc alloy as claimed in claim 6 is characterized in that: the teeming temperature of molten metal is 580～640 ℃, vacuum seepage pressure is-0.04～-0.08MPa, flow event continues 1～10 second.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100260217A CN1256452C (en) | 2004-03-20 | 2004-03-20 | Tapping zinc alloy and preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100260217A CN1256452C (en) | 2004-03-20 | 2004-03-20 | Tapping zinc alloy and preparation method |
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| Publication Number | Publication Date |
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| CN1563452A CN1563452A (en) | 2005-01-12 |
| CN1256452C true CN1256452C (en) | 2006-05-17 |
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| CNB2004100260217A Expired - Fee Related CN1256452C (en) | 2004-03-20 | 2004-03-20 | Tapping zinc alloy and preparation method |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100443608C (en) * | 2006-10-20 | 2008-12-17 | 西安理工大学 | Method for preparing rare earth foam zinc-aluminium alloy composite material |
| CN101560615B (en) * | 2009-05-15 | 2011-01-19 | 西安理工大学 | Method for preparing metallic hollow microsphere powder |
| CN102517473A (en) * | 2011-12-29 | 2012-06-27 | 无锡江南奕帆电力传动科技股份有限公司 | Zinc-base antifriction alloy |
| CN104258458B (en) * | 2014-09-10 | 2016-03-02 | 上海交通大学 | Degradable open-pored porous zinc and zinc alloy biomaterial and preparation method thereof |
| CN107354335B (en) * | 2017-07-14 | 2018-11-20 | 东北大学 | A kind of method and apparatus being used to prepare bio-medical open celled foam Zinc material |
| CN107961141B (en) * | 2017-11-02 | 2019-12-03 | 王艳 | A kind of nursing walking stick |
| CN107874982A (en) * | 2017-11-02 | 2018-04-06 | 孙艳平 | A kind of medical elastic elbow cane |
| CN107970107A (en) * | 2017-11-02 | 2018-05-01 | 孙艳平 | A kind of nursing leg elasticity crutch |
| CN107961142A (en) * | 2017-11-02 | 2018-04-27 | 孙艳平 | A kind of medical nursing elbow cane |
| CN108570578B (en) * | 2018-06-06 | 2021-03-16 | 东北大学 | Biological medical zinc material with pore size gradient distribution and open pore structure and preparation method thereof |
| CN110129618A (en) * | 2019-05-24 | 2019-08-16 | 广西大学 | A kind of zinc-base composite foam material |
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