CN102051551B - Heat-resisting zinc alloy material and preparation method thereof - Google Patents
Heat-resisting zinc alloy material and preparation method thereof Download PDFInfo
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- CN102051551B CN102051551B CN2011100074425A CN201110007442A CN102051551B CN 102051551 B CN102051551 B CN 102051551B CN 2011100074425 A CN2011100074425 A CN 2011100074425A CN 201110007442 A CN201110007442 A CN 201110007442A CN 102051551 B CN102051551 B CN 102051551B
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Abstract
The invention provides a heat-resisting zinc alloy material and a preparation method thereof. The heat-resisting zinc alloy material has good performance. The preparation method has the advantages of simple process and low production cost, and is suitable for industrialized production. The material takes heat-resisting zinc alloy as a substrate, metal wire groups formed by copper wires and iron wires are distributed in the substrate, and the diameters of the copper wire and the iron wire are both 1-2mm, the diameter of each metal wire group is 10-15cm, the total lengths of the copper wire andthe iron wire in the material are equal, and the total volume percentage of the two metal wires in the material is10-35%.
Description
Technical field
The invention belongs to metal material field, relate to a kind of heat-resisting zinc alloy material and preparation method thereof.
Background technology
In metal material field, heat-resisting zinc alloy receives generally as heat-stable material always and paying attention to.
1994 the 3rd phase Yang Liushuan in material Leader etc. have discussed the new approaches of improving the strong zinc base alloy of high heat.Point out that high alumina zinc base alloy has good normal temperature mechanical property, especially have good room temperature tensile strength, considerably beyond casting alloys such as aluminium, bronze.Yet after temperature raise, the intensity of alloy but sharply descended.Thereby we can say that alloy room temperature tensile strength is more than sufficient, and high temperature tensile strength seems not enough.Many in recent years scholars have produced very big interest to Zinc-base compounded material.The creep resistance of extrusion casting and carbon fiber reinforced alloy significantly improves, but fracture toughness property and ductility decline are stranded.Add fiber in the zinc base alloy and carry out extrusion casting, though room temperature tensile strength descends, high temperature tensile strength is improved, and the room temperature compressive strength is significantly improved, but fiber reinforcement makes the decrease ductility of Zinc-base compounded material equally.But its tensile strength properties remains further to be improved.
Summary of the invention
The object of the invention is exactly to above-mentioned technological deficiency, and a kind of heat-resisting zinc alloy material is provided, and this material has good performance.
Another object of the present invention provides a kind of preparation method of heat-resisting zinc alloy material, and this preparing method's technology is simple, and production cost is low, is suitable for suitability for industrialized production.
The objective of the invention is to realize through following technical scheme:
A kind of heat-resisting zinc alloy material; It is characterized in that: this material is matrix with the zinc alloy; The wire group that in matrix, is distributing and forming by copper wire and iron wire, the diameter of copper wire and iron wire is 1-2mm, and the diameter of wire group is 10-15cm; The overall length of copper wire and iron wire is suitable in the material, and the volume percent that two kinds of wires account for material altogether is 10-35%;
Zinc alloy matrix following chemical components in percentage by weight: Al is 8-12%, and Sr is 0.2%～0.5%, and Si is 2%～4%, and Sn is 1%～3%, and Fe is 1%～2%, and Zr is 0.5%～1%, and Mn is 4%～6%, and Ho is 0.01%～0.03%, and all the other are Zn;
Copper wire is a fine copper; The following chemical components in percentage by weight of iron wire is: C is 0.05-0.09%, and Si is 0.2%～0.3%, and Mn is 0.25-0.35%, and < 0.02%, < 0.025%, all the other are Fe to S to P.
Also be distributed with ZnB in the said matrix
22And NiZn
13Particle.
A kind of preparation method of heat-resisting zinc alloy material is characterized in that: it may further comprise the steps:
The preparation of nickel plating copper wire and boronising iron wire: cut-off is that the copper wire and the diameter of fine copper is that 1-2mm, composition weight percentage: C are 0.05-0.09% for 1-2mm, composition weight percentage directly respectively; Si is 0.2%～0.3%, and Mn is 0.25-0.35%, and P < 0.02%; S < 0.025%; All the other are the iron wire of Fe, and the overall length of copper wire and iron wire is suitable, and the volume percent that two kinds of wires account for material altogether is 10-35%; Preparing the nickel plating copper wire by ordinary method at the copper wire plating nickel on surface respectively reaches at the iron wire surface boronizing; Copper wire plating nickel on surface layer thickness is the 50-150 micron; The thickness of iron wire surface boronizing layer is the 100-200 micron;
Ordinary method by cleaning ball production is respectively got rhizoid formation globular mixing mariages wire group with above-mentioned nickel plating copper wire and boronising iron wire; Wire group's diameter is 10-15cm; Number of metal silk group is put into casting mold mo(u)ld bottom half die cavity; The tightness of wire group guarantees that by the volume percent decision that copper wire and iron wire account for material wire group just in time piles casting mold; After deploying, the mo(u)ld top half of casting mold is placed on the mo(u)ld bottom half, the cast of alloy liquid is waited in the mould assembling back that finishes;
The preparation of zinc alloy matrix: percentage composition Al is 8-12% by weight, and Sr is 0.2%～0.5%, and Si is 2%～4%; Sn is 1%～3%, and Fe is 1%～2%, and Zr is 0.5%～1%; Mn is 4%～6%, and Ho is 0.01%～0.03%, and all the other are prepared burden for Zn; The zinc alloy raw material is melted the preparation zinc liquid in induction furnace, temperature of fusion is 680-710 ℃;
Above-mentioned zinc liquid is poured into the dry sand casting mold that wire group is housed, and zinc liquid is surrounded nickel plating copper wire and boronising iron wire, cooled and solidified then, and obtaining with the zinc alloy is the heat-stable material that wherein is distributed with wire group of matrix.
It is following that the present invention compares the beneficial effect of prior art:
(1) copper wire in the material of the present invention and iron wire self have suitable intensity and higher heat-resisting.B in Ni in the nickel plating copper wire and Cu and the boronising iron wire, Fe get in the liquid Zn, form ZnB with zinc
22, CuZn, NiZn
13, Fe
3Zn
10Deng special compound, disperse strengthens zinc alloy; Not molten copper wire and iron wire and zinc alloy metallurgical binding play the toughness reinforcing effect of enhancing to zinc alloy.
(2) Zr in the zinc alloy matrix and Ho and Zn form compound ZrZn
3And ZnHo, the tissue of zinc alloy is had the effect of remarkable refinement, help the heat-stable raising of material.
(3) P, S are impurity in the material of the present invention, are controlled at the scope of permission.
(4) plasticity of this material, toughness and fine heat-resisting performance, casting dimension is stablized, and lower cost for material is an excellent material of making sliding friction parts such as bearing shell, axle sleeve, worm gear.
(5) this alloy material has replaced part zinc with iron, and the cost of material is low, and preparation technology is easy, and production cost is low, and the alloy material performance of production is good, and is convenient to very much suitability for industrialized production.
Alloy property of the present invention is seen table 1.
Description of drawings
The metallographic structure of the heat-resisting zinc alloy material that Fig. 1 makes for the embodiment of the invention one.
Fig. 1 can see at zinc alloy and combining well with wire.
Embodiment
Below each embodiment only with of the present invention the explaining of opposing, weight percent wherein all can change weight g, kg or other weight unit into.Copper wire among each embodiment and iron wire are commercial, nickeling layer and boride layer self-control.
Embodiment one:
The following chemical components in percentage by weight of zinc alloy matrix: Al is 8%, and Sr is 0.2%, and Si is 2%, and Sn is 1%, and Fe is 1%, and Zr is 0.5%, and Mn is 4%, and Ho is 0.01%, and all the other are Zn.
Copper wire is a fine copper, and its diameter is 1mm.
The following chemical components in percentage by weight of iron wire: C is 0.05%, and Si is 0.2%, and Mn is 0.25%, and < 0.02%, < 0.025%, all the other are Fe to S to P; The diameter of this iron wire is 1mm.
The overall length of copper wire and iron wire is suitable in the material, and the volume percent that two kinds of wires account for material altogether is 10%.
Get copper wire and according to ordinary method Nickel Plating Treatment is carried out on its surface and prepare the nickel plating copper wire, nickeling layer thickness is 50 microns.
Get iron wire and according to ordinary method boronising Processing of Preparation boronising iron wire is carried out on its surface, the thickness of boride layer is 100 microns, and the nickel plating copper wire of formation is suitable with boronising iron wire length.
Ordinary method by cleaning ball production is respectively got rhizoid formation globular mixing mariages wire group with above-mentioned nickel plating copper wire and boronising iron wire; Wire group's diameter is 15cm; Number of metal silk group is put into casting mold mo(u)ld bottom half die cavity; The tightness of wire group guarantees that by the volume percent decision that copper wire and iron wire account for material wire group just in time piles casting mold; After deploying, the mo(u)ld top half of casting mold is placed on the mo(u)ld bottom half, the cast of alloy liquid is waited in the mould assembling back that finishes;
The zinc alloy matrix is melted the preparation zinc liquid in induction furnace, temperature of fusion is 695-705 ℃;
Above-mentioned zinc liquid is poured into the dry sand casting mold that wire group is housed, and zinc liquid is surrounded nickel plating copper wire and boronising iron wire, cooled and solidified then, and obtaining with the zinc alloy is the heat-stable material that wherein is distributed with wire group of matrix.
Embodiment two:
Zinc alloy matrix composition percentage composition: Al by weight is 12%, and Sr is 0.5%, and Si is 4%, and Sn is 3%, and Fe is 2%, and Zr is 1%, and Mn is 6%, and Ho is 0.03%, and all the other are prepared burden for Zn.
Copper wire is a fine copper, and its diameter is 2mm.
The following chemical components in percentage by weight of iron wire: C is 0.09%, and Si is 0.3%, and Mn is 0.35%, and < 0.02%, < 0.025%, all the other are Fe to S to P; The diameter of this iron wire is 2mm.
The overall length of used copper wire and iron wire is suitable, and the volume percent that two kinds of wires account for material altogether is 35%.
Get copper wire and Nickel Plating Treatment is carried out on its surface prepare the nickel plating copper wire, the thickness of nickeling layer is 150 microns.
Get iron wire boronising Processing of Preparation boronising iron wire is carried out on its surface, the thickness of boride layer is 200 microns.Press the ordinary method making of cleaning ball production and be with the mariages wire group of two kinds of wires mixing of coating, wire group diameter is 10cm.
The preparation process is with embodiment one.
Embodiment three:
Zinc alloy matrix composition percentage composition: Al by weight is 10%, and Sr is 0.3%, and Si is 3%, and Sn is 2%, and Fe is 1.5%, and Zr is 0.8%, and Mn is 5%, and Ho is 0.02%, and all the other are prepared burden for Zn.
Copper wire is a fine copper, and its diameter is 1.5mm.
The following chemical components in percentage by weight of iron wire: C is 0.07%, and Si is 0.25%, and Mn is 0.3%, and < 0.02%, < 0.025%, all the other are Fe to S to P; The diameter of this iron wire is 1.5mm.
The overall length of the two of used copper wire and iron wire is suitable, and the volume percent that two kinds of wires account for material altogether is 25%.
Get copper wire and Nickel Plating Treatment is carried out on its surface prepare the nickel plating copper wire, the thickness of nickeling layer is 80 microns.
Get iron wire boronising Processing of Preparation boronising iron wire is carried out on its surface, the thickness of boride layer is 150 microns.By the mariages wire group that the ordinary method of cleaning ball production is made two kinds of wires mixing of above-mentioned two kinds of band coating, wire group diameter is 15cm.
The preparation process is with embodiment one.
The comparative example four: proportioning raw materials is within the scope of the present invention instance not
The following chemical components in percentage by weight of zinc alloy matrix: Al is 6%, and Sr is 0.1%, and Si is 1%, and Sn is 0.5%, and Fe is 0.5%, and Zr is 0.3%, and Mn is 2%, and Ho is 0.005%, and all the other are Zn.
Copper wire is a fine copper, and its diameter is 0.5mm.
The following chemical components in percentage by weight of iron wire: C is 0.04%, and Si is 0.1%, and Mn is 0.2%, and < 0.02%, < 0.025%, all the other are Fe to S to P; The diameter of this iron wire is 0.5mm.
The overall length of copper wire and iron wire is suitable, and the volume percent that two kinds of wires account for material is 5%.
Nickel Plating Treatment is not carried out on the copper wire surface; The iron wire surface is not carried out boronising and is handled.Press the ordinary method of cleaning ball production and make the mariages wire group that two kinds of wires mix, wire group diameter is 15cm.
The preparation process is with embodiment one.
The comparative example five: proportioning raw materials is within the scope of the present invention instance not
The following chemical components in percentage by weight of zinc alloy matrix: Al is 13%, and Sr is 0.6%, and Si is 5%, and Sn is 4%, and Fe is 3%, and Zr is 2%, and Mn is 7%, and Ho is 0.03%, and all the other are Zn.
Copper wire is a fine copper, and its diameter is 3mm.
The following chemical components in percentage by weight of iron wire: C is 0.1%, and Si is 0.4%, and Mn is 0.4%, and < 0.02%, < 0.025%, all the other are Fe to S to P; The diameter of this iron wire is 3mm.
The overall length of copper wire and iron wire is suitable, and the volume percent that two kinds of wires account for material is 40%.
Get copper wire and Nickel Plating Treatment is carried out on its surface prepare the nickel plating copper wire, the thickness of nickeling layer is 160 microns.
Get iron wire boronising Processing of Preparation boronising iron wire is carried out on its surface, the thickness of boride layer is 210 microns.Press the ordinary method making of cleaning ball production and be with the mariages wire group of two kinds of wires mixing of coating, wire group diameter is 10cm.
The preparation process is with embodiment one.
Each performance of products contrast of table 1
Can find out that from last table Al, Sr, Si, Sn, Fe, Mn, Zr, the Ho in the zinc alloy matrix of the present invention increases the mechanical property that is beneficial to alloy and improve; But it is too much that some element such as Al, Sr, Si, Sn, Fe cross the compound that forms at most, can weaken the thermotolerance of alloy.Some element such as Ho are too much, cause the element waste.
Composition in the iron wire is that C, Si, Mn increase the mechanical property that is beneficial to alloy and improve; But cross the thermotolerance that can weaken alloy at most.
The increase of copper wire and two kinds of wire volume percent of iron wire is beneficial to the heat-stable raising of material.Because zinc alloy matrix bag does not live nickel plating copper wire and boronising iron wire, crackle appears in matrix, has then reduced the heat-resisting of material, thereby influences the resistance to corrosion of alloy but too much.Like product 5.
Wire diameter is too little simultaneously, and surface-area is too big, is unfavorable for that the coating element dissolves in the zinc water; Otherwise wire diameter is too big, and the density that in the zinc alloy matrix, distributes reduces, and is unfavorable for the raising of material monolithic resistance toheat again.
Claims (1)
1. the preparation method of a heat-resisting zinc alloy material, it is characterized in that: it may further comprise the steps:
The preparation of nickel plating copper wire and boronising iron wire: cut-off is that the copper wire and the diameter of fine copper is that 1-2mm, composition weight percentage: C are 0.05-0.09% for 1-2mm, composition weight percentage directly respectively; Si is 0.2%～0.3%, and Mn is 0.25-0.35%, and P < 0.02%; S < 0.025%; All the other are the iron wire of Fe, the overall length of the copper wire of getting and iron wire suitable, the volume percent that two kinds of wires account for material altogether is 10-35%;
Preparing the nickel plating copper wire by ordinary method at the copper wire plating nickel on surface respectively reaches at the iron wire surface boronizing; Copper wire plating nickel on surface layer thickness is the 50-150 micron; The thickness of iron wire surface boronizing layer is the 100-200 micron;
Ordinary method by cleaning ball production is respectively got rhizoid formation globular mixing mariages wire group with above-mentioned nickel plating copper wire and boronising iron wire; Wire group's diameter is 10-15cm; Number of metal silk group is put into dry sand casting mold mo(u)ld bottom half die cavity; The tightness of wire group guarantees that by the volume percent decision that copper wire and iron wire account for material wire group just in time piles the dry sand casting mold; After deploying, the mo(u)ld top half of dry sand casting mold is placed on the mo(u)ld bottom half, the cast of alloy liquid is waited in the mould assembling back that finishes;
The preparation of zinc alloy matrix: percentage composition Al is 8-12% by weight, and Sr is 0.2%～0.5%, and Si is 2%～4%; Sn is 1%～3%, and Fe is 1%～2%, and Zr is 0.5%～1%; Mn is 4%～6%, and Ho is 0.01%～0.03%, and all the other are prepared burden for Zn; The zinc alloy raw material is melted the preparation zinc liquid in induction furnace, temperature of fusion is 680-710 ℃;
Above-mentioned zinc liquid is poured into the dry sand casting mold that wire group is housed, and zinc liquid is surrounded nickel plating copper wire and boronising iron wire, cooled and solidified then, and obtaining with the zinc alloy is the heat-stable material that wherein is distributed with wire group of matrix.
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| CN101876036A (en) * | 2010-07-06 | 2010-11-03 | 南京信息工程大学 | Zinc alloy based diatomite, pumice and cobalt ferric oxide composite material and preparation method thereof |
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| CN100455687C (en) * | 2006-12-06 | 2009-01-28 | 宁波博威集团有限公司 | Process of making zinc-base alloy wire and rod with high strength and high toughness |
| CN101012540A (en) * | 2007-02-14 | 2007-08-08 | 西安建筑科技大学 | Preparing technique of gas carburizing carbonide silk net metal-based composite material |
| CN101024872A (en) * | 2007-02-14 | 2007-08-29 | 西安建筑科技大学 | Process for preparing active carbon carbonate wire-net metal base composite material |
| CN101029377A (en) * | 2007-02-14 | 2007-09-05 | 西安建筑科技大学 | Production of titanium nitride wire mesh metal-based composite material |
| CN101876036A (en) * | 2010-07-06 | 2010-11-03 | 南京信息工程大学 | Zinc alloy based diatomite, pumice and cobalt ferric oxide composite material and preparation method thereof |
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