CN109338062A - A kind of preparation method of easy, efficient high-strength superfine crystalline wire - Google Patents
A kind of preparation method of easy, efficient high-strength superfine crystalline wire Download PDFInfo
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- CN109338062A CN109338062A CN201811245834.3A CN201811245834A CN109338062A CN 109338062 A CN109338062 A CN 109338062A CN 201811245834 A CN201811245834 A CN 201811245834A CN 109338062 A CN109338062 A CN 109338062A
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/06—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires
- C21D8/065—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires of ferrous alloys
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/04—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of bars or wire
- B21C37/047—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of bars or wire of fine wires
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- Heat Treatment Of Steel (AREA)
Abstract
The invention discloses a kind of preparation methods of easy, efficient high-strength superfine crystalline wire, it is characterized in that, include the following steps: (1) for metal wire blank low temperature pre-anneal treatment, the low temperature Pre-annealing Temperature is 200 DEG C -400 DEG C, and the processing time is 2-5 min；(2) wire after low temperature pre-anneal treatment is subjected to drawing process；(3) wire of drawing process is subjected to isothermal annealing processing, is allowed to occur growing up for recrystallization and crystal grain, to obtain the ultrafine grain metal of various grain sizes, the isothermal annealing temperature is 490~1000 DEG C, and the processing time is 5 min-40 min.Equipment needed for the present invention is simple, easily operated, applied widely, is able to achieve the ultrafine grain metal silk preparation of variety classes, different diameter specifications；The present invention can be realized super large plastic deformation, and deformation rate is up to 96% or more；Nanocrystalline or even amorphous metal material can be also prepared by the method for the invention.
Description
Technical field
The present invention relates to technical field of metal material preparation, it particularly relates to a kind of easy, efficient high-strength superfine
The preparation method of brilliant wire.
Background technique
It is widely used in building, traffic, national defence and landification equipment etc. by the structural metallic materials of representative of steel material
Field.Intensity and plasticity are most important two mechanical performance indexs of structural metallic materials, and High-strength high-plasticity is that its is high performance
Key, the metal material for taking into account High-strength high-plasticity may be implemented the minimizing of component, economized, safety, be beneficial to energy conservation drop
Consumption, environmental protection.However, intensity and plasticity are often conflict, it is difficult to take into account, traditional such as solution strengthening, precipitating are strong
The intensifying methods such as change, working hardening are all to sacrifice plasticity as cost.In various intensifying methods, refined crystalline strengthening is currently the only one
Kind can not only improve intensity to a certain extent but also can increase the means of plasticity and toughness.With the refinement of crystal grain, the intensity of material is always
It improves, plasticity can also increase to a certain degree, and ultrafine grain metal shows the property comprehensive mechanical property of excellent high-strength high-plasticity.
The preparation method of ultrafine grain metal mainly has with Equal-channel Angular Pressing (ECAP), accumulation pack rolling (ARB), height at present
Pressure torsion (HTP) etc. is the severe Plastic Deformation Methods (SPD) of representative；With controlled rolling and controlled cooling (TMCP), deformation-induced ferrite transformation
It (DIFT) is the side such as the thermomechanical aging technology (ATMP) of representative and other electro-deposition, inert gas solidification, Amorphous Crystallization
Method.Although SPD technology is widely used in the super of aluminium, copper, titanium, nickel metal and its multiple materials such as alloy and pure iron, mild steel
Fine grain preparation, but the conditions such as complexity and equipment requirement for being constrained to technique, carry out the big of ultrafine grain metal using this technology
There is also very big difficulties for large-scale production；The large-scale production of Ultrafine Grained Steel may be implemented in TMCP, but equipment land occupation is big, investment
It is high；There is also apparent limitations for the other methods such as electro-deposition.Therefore, a kind of inexpensive, simple and effective Ultra-fine Grained gold is developed
Belonging to preparation method is the project with practical application value that current this field researcher more pays close attention to.
For the problems in the relevant technologies, currently no effective solution has been proposed.
Summary of the invention
For above-mentioned technical problem in the related technology, the present invention proposes a kind of easy, efficient high-strength superfine crystalline gold
The preparation method for belonging to silk, is able to solve above-mentioned technical problem.
To realize the above-mentioned technical purpose, the technical scheme of the present invention is realized as follows:
A kind of preparation method of easy, efficient high-strength superfine crystalline wire, includes the following steps:
(1) by metal wire blank low temperature pre-anneal treatment, the low temperature Pre-annealing Temperature is 200 DEG C -400 DEG C, handles the time
For 2-5 min；
(2) wire after low temperature pre-anneal treatment is subjected to drawing process；
(3) wire of drawing process is subjected to isothermal annealing processing, is allowed to occur growing up for recrystallization and crystal grain, to obtain
The ultrafine grain metal of various grain sizes, the isothermal annealing temperature are 490~1000 DEG C, and the processing time is 5 min-40
min。
Further, the drawing process are as follows: wire after low temperature pre-anneal treatment is passed through into the drawing of different pore size mold
The wire for being 0.40 mm -0.10 mm at diameter.
Further, the aperture of the mold includes: 3.0 mm, 2.5 mm, 2.0 mm, 1.5 mm, 1.2 mm, 1.0
mm、0.9 mm、0.82 mm、0.75 mm、0.7 mm、0.66 mm、0.63 mm、0.6 mm、0.58 mm、0.56 mm、0.54
mm、0.52 mm、0.50 mm、0.48 mm、0.46 mm、0.44 mm、0.42 mm、0.4 mm、0.38 mm、0.36 mm、
0.35 mm、0.33 mm、0.32 mm、0.31 mm、0.30 mm、0.29 mm、0.28 mm、0.27 mm、0.26 mm、0.25
mm、0.24 mm、0.23 mm、0.22 mm、0.21 mm、0.20 mm、0.19 mm、0.18 mm、0.17 mm、0.16 mm、
0.15 mm、0.14 mm、0.13 mm、0.12 mm、0.11 mm、0.10 mm。
Further, the mold is prepared using diamond and mould steel material.
Further, the low temperature pre-anneal treatment and isothermal annealing processing carry out in annealing device, the annealing
Equipment uses box-annealing furnace, tube-type atmosphere furnace or vacuum annealing furnace.
Further, the isothermal annealing processing is cooling using air.
Further, the diameter of the metal wire blank can be 4.0 mm-2.0 mm.
Further, the metal wire blank includes but is not limited to pure iron, mild steel, stainless steel.
Beneficial effects of the present invention:
1, equipment needed for the present invention is simple, easily operated, applied widely, be able to achieve variety classes, different diameter specifications it is super
The preparation of fine grain wire.
2, the present invention can be realized super large plastic deformation, and deformation rate is up to 96% or more.
3, nanocrystalline or even amorphous metal material can be also prepared by the method for the invention.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the micro-organization chart of the superfine crystalline pure iron silk of the embodiment of the present invention 1；
Fig. 2 is the superfine crystalline pure iron filament crystal particle size statistical chart of the embodiment of the present invention 1；
Fig. 3 is the superfine crystalline pure iron silk tensile strength statistical chart of the embodiment of the present invention 1；
Fig. 4 is the micro-organization chart of the mild steel wire of the embodiment of the present invention 2；
Fig. 5 is the mild steel wire crystallite dimension statistical chart of the embodiment of the present invention 2；
Fig. 6 is the mild steel wire tensile strength statistical chart of the embodiment of the present invention 2；
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art's every other embodiment obtained belong to what the present invention protected
Range.
First using annealing furnace to metal wire blank carry out low-temperature annealing, then using motor drive wire-drawing equipment into
Row gradually tube reducing drawing finally carries out not temperature to the wire after drawing and the isothermal annealing of different time is handled, obtains not
With the high-strength ultra-fine grained wire of crystallite dimension, crystallite dimension can refine to sub-micrometer range, realize high-intensitive or high
Strong plasticity.
The realization large plastometric set of the two method energy simple and effectives to compressive strain one to tensile stress, deformation are used in the present invention
Rate may be up to 96% or more.The drawing mould that different-diameter is used in the present invention realizes that gradually tube reducing prevents from being broken in drawing process
Effect.
Specifically comprise the following steps:
(1) by metal wire blank low temperature pre-anneal treatment, the low temperature Pre-annealing Temperature is 200 DEG C -400 DEG C, handles the time
For 2-5 min；
(2) wire after low temperature pre-anneal treatment is subjected to drawing process；
(3) wire of drawing process is subjected to isothermal annealing processing, is allowed to occur growing up for recrystallization and crystal grain, to obtain
The ultrafine grain metal of various grain sizes, the isothermal annealing temperature are 490~1000 DEG C, and annealing time is 5 min-40
min。
Wire can be pure iron, mild steel, stainless steel etc., diameter can be 4.0 mm-2.0 mm.Annealing device can be with
It is box-annealing furnace, tube-type atmosphere furnace or vacuum annealing furnace, 1200-1300 DEG C of equipment rated temperature.
Embodiment 1
Select 2.5 mm of diameter pure iron silk (purity 99.5%) be respectively by aperture without low-temperature annealing direct drawing
2.0 mm, 1.5 mm, 1.2 mm, 0.9 mm, 0.7 mm, 0.50 mm, 0.46 mm, 0.44 mm, 0.42 mm, 0.4 mm mold
Drawing obtains the large plastometric set wire of 0.4 mm of diameter.Then, by 510 DEG C of -600 DEG C of 5 min-40 min of annealing
Air-cooled processing is carried out, the Ultra-fine Grained of different sizes (average value) is obtained, as shown in Figs. 1-2,0.6 μm of -4.5 μ of grain size range
m.The tensile strength of superfine crystalline pure iron silk is as shown in figure 3, up to 900 MPa, are 3 times of common pure iron or more.
Embodiment 2
Select 3.0 mm of diameter mild steel, carry out drawing after carrying out 200 DEG C of low-temperature annealings, by aperture be respectively 2.5 mm,
2.0 mm, 1.5 mm, 1.2 mm, 0.9 mm, 0.7 mm, 0.50 mm, 0.46 mm, 0.44 mm, 0.42 mm, 0.4 mm mold
Drawing obtains the large plastometric set wire of 0.4 mm of diameter.Then, it is carried out by 490 DEG C of -630 DEG C of 30 min of annealing empty
Cold treatment obtains different size averages) Ultra-fine Grained, as illustrated in figures 4-5,0.52 μm -4.05 μm of grain size range.It is ultra-fine
The tensile strength of grain low-carbon steel silk is as shown in fig. 6, intensity is obviously improved compared with ordinary low-carbon steel, up to 550Mpa or more.
In conclusion equipment needed for the present invention is simple, easily operated, applicable by means of above-mentioned technical proposal of the invention
Range is wide, is able to achieve the ultrafine grain metal silk preparation of variety classes, different diameter specifications；The present invention can be realized the change of super large plasticity
Shape, deformation rate are up to 96% or more；Nanocrystalline or even amorphous metal material can be also prepared by the method for the invention.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of preparation method of easy, efficient high-strength superfine crystalline wire, which comprises the steps of:
(1) by metal wire blank low temperature pre-anneal treatment, the low temperature Pre-annealing Temperature is 200 DEG C -400 DEG C, handles the time
For 2-5 min；
(2) wire after low temperature pre-anneal treatment is subjected to drawing process；
(3) wire of drawing process is subjected to isothermal annealing processing, is allowed to occur growing up for recrystallization and crystal grain, to obtain
The ultrafine grain metal of various grain sizes, the isothermal annealing temperature are 490~1000 DEG C, and the processing time is 5 min-40
min。
2. the preparation method of easy, efficient high-strength superfine crystalline wire according to claim 1, which is characterized in that institute
State drawing process are as follows: it is 0.40 mm-that wire after low temperature pre-anneal treatment, which is drawn into diameter by different pore size mold,
The wire of 0.10 mm.
3. the preparation method of easy, efficient high-strength superfine crystalline wire according to claim 2, which is characterized in that institute
State mold aperture include: 3.0 mm, 2.5 mm, 2.0 mm, 1.5 mm, 1.2 mm, 1.0 mm, 0.9 mm, 0.82 mm,
0.75 mm、0.7 mm、0.66 mm、0.63 mm、0.6 mm、0.58 mm、0.56 mm、0.54 mm、0.52 mm、0.50
mm、0.48 mm、0.46 mm、0.44 mm、0.42 mm、0.4 mm、0.38 mm、0.36 mm、0.35 mm、0.33 mm、
0.32 mm、0.31 mm、0.30 mm、0.29 mm、0.28 mm、0.27 mm、0.26 mm、0.25 mm、0.24 mm、0.23
mm、0.22 mm、0.21 mm、0.20 mm、0.19 mm、0.18 mm、0.17 mm、0.16 mm、0.15 mm、0.14 mm、
0.13 mm、0.12 mm、0.11 mm、0.10 mm。
4. the preparation method of the simplicity according to Claims 2 or 3, efficient high-strength superfine crystalline wire, which is characterized in that
The mold is prepared using diamond and mould steel material.
5. the preparation method of easy, efficient high-strength superfine crystalline wire according to claim 1, which is characterized in that institute
State low temperature pre-anneal treatment and isothermal annealing processing carried out in annealing device, the annealing device using box-annealing furnace,
Tube-type atmosphere furnace or vacuum annealing furnace.
6. the preparation method of easy, efficient high-strength superfine crystalline wire according to claim 1, which is characterized in that institute
It is cooling using air to state isothermal annealing processing.
7. the preparation method of easy, efficient high-strength superfine crystalline wire according to claim 1 or claim 2, feature exist
In the diameter of the metal wire blank can be 4.0 mm-2.0 mm.
8. according to claim 1, the preparation method of 2 or 4 easy, the efficient high-strength superfine crystalline wires, feature exist
In the metal wire blank includes but is not limited to pure iron, mild steel, stainless steel.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811245834.3A CN109338062A (en) | 2018-10-24 | 2018-10-24 | A kind of preparation method of easy, efficient high-strength superfine crystalline wire |
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| CN201811245834.3A CN109338062A (en) | 2018-10-24 | 2018-10-24 | A kind of preparation method of easy, efficient high-strength superfine crystalline wire |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111672918A (en) * | 2020-06-01 | 2020-09-18 | 江阴市利盟金属制品有限公司 | High-strength flexible shaft core drawing process for motor vehicle |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103397262A (en) * | 2013-07-25 | 2013-11-20 | 张家港市胜达钢绳有限公司 | Manufacturing method of stainless steel wire |
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- 2018-10-24 CN CN201811245834.3A patent/CN109338062A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103397262A (en) * | 2013-07-25 | 2013-11-20 | 张家港市胜达钢绳有限公司 | Manufacturing method of stainless steel wire |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111672918A (en) * | 2020-06-01 | 2020-09-18 | 江阴市利盟金属制品有限公司 | High-strength flexible shaft core drawing process for motor vehicle |
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Application publication date: 20190215 |
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