CN103861882B - A kind of tinned copper wire wire drawing die wrapping up diamond metal sinter and preparation method thereof - Google Patents
A kind of tinned copper wire wire drawing die wrapping up diamond metal sinter and preparation method thereof Download PDFInfo
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- CN103861882B CN103861882B CN201410102507.8A CN201410102507A CN103861882B CN 103861882 B CN103861882 B CN 103861882B CN 201410102507 A CN201410102507 A CN 201410102507A CN 103861882 B CN103861882 B CN 103861882B
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Abstract
The invention discloses a kind of tinned copper wire wire drawing die wrapping up diamond metal sinter and preparation method thereof, part mixed metal powder is put into formwork, compaction; A diamond grains is put into the metal-powder center of compacting; Again remaining mixed metal powder is put into formwork, high temperature sintering compacting; Punching is carried out to the formwork center after sintered compact and makes wire drawing die; Described mixed metal powder comprises Al45% ~ 60%, Ni30% ~ 40%, Ti5% ~ 10%, Fe1% ~ 4%, C1% ~ 3%.The present invention wraps up the adamantine material of broken granule at the metallic particles such as nickel, titanium of aluminium base middle interpolation different content, and reaching mould both ensure that adamantine intensity, rigidity in use, turn improved toughness; Due to employing is titanium alloy formwork, adds certain titanium elements, metal-powder and formwork can be made when high temperature sintering pressurizes to reach interatomic combination in metal-powder.
Description
Technical field
The present invention relates to a kind of tinned copper wire wire drawing die, in particular a kind of tinned copper wire wire drawing die wrapping up diamond metal sinter and preparation method thereof.
Background technology
Tinned copper wire wire drawing die is very high to copper wire surface quality requirements, therefore die core of wire-drawing die adopts diamond, diamond has the advantages that hardness is high, wearability is good, and the wire surface fineness that drawing goes out is very high, because natural diamond structurally has anisotropy, its hardness is caused also to present anisotropy, make the wearing and tearing of nib uneven, goods are rounding not, service life, deviation was very large, and fragility is comparatively large, easily ftractures in drawing process, for this reason, the scrappage reducing wire drawing die becomes the research direction of wire drawing die industry.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of tinned copper wire wire drawing die wrapping up diamond metal sinter and preparation method thereof, improve diamond core rod quality.
The present invention is achieved by the following technical solutions, and a kind of preparation method wrapping up the tinned copper wire wire drawing die of diamond metal sinter of the present invention, comprises the following steps:
(1) part mixed metal powder is put into formwork, compaction;
(2) diamond grains is put into the metal-powder center of step (1) compacting;
(3) more remaining mixed metal powder is put into formwork, high temperature sintering compacting;
(4) punching is carried out to the formwork center after sintered compact and make wire drawing die;
Described mixed metal powder comprises Al45% ~ 60%, Ni30% ~ 40%, Ti5% ~ 10%, Fe1% ~ 4%, C1% ~ 3%.
In described step (2), diamond grains is 0.02 carat ~ 0.03 carat, and the diameter of effective overlapping area is 0.6mm.
In described step (3), the formwork adding mixed metal powder is heated, pressure is applied while heating, keep temperature-resistant after being heated to 900 ~ 1100 DEG C, then be pressurized to 4.5MPa after being heated to design temperature keeps pressure constant, and the time of heating pressurization is total up to 3 ~ 5min.
In described step (4), wire drawing die drill process is followed successively by car and goes out taper hole, laser boring, grinding and polishing hole, metering hole.
A kind of as described in the wire drawing die that obtains of the preparation method of tinned copper wire wire drawing die of parcel diamond metal sinter, the core rod of described wire drawing die comprises formwork, gland, metal sintering block and diamond grains, described metal sintering block is embedded in formwork, gland is positioned at the top of metal sintering block, gland is concordant with the top of formwork, diamond grains to be embedded in metal sintering block and to be positioned at the center of formwork, and nib is offered at the center of metal sintering block.
Anti-mouth is formed on the bottom of described metal sintering block and diamond grains, and the height of described anti-mouth is 15% of the core rod height of wire drawing die.
As one of preferred embodiment of the present invention, described formwork is titanium alloy formwork.
Operation principle of the present invention: according to solid solution principle, aluminium and nickel can solid solutions completely, wrap up broken granule diamond at the metal such as nickel, titanium of aluminium base middle interpolation different content, reaching mould both ensure that adamantine intensity, rigidity in use, turn improved toughness; According to the affine principle of element, in this formula, reduce the element strong with tin affinity as iron, contact with under metal-powder high forces to reduce tinned copper wire in drawing process, avoid the tin in tin pond to flow toward metal-powder, affect surface quality; Adopt specific packing technology, minimum simple grain diamond is wrapped in wherein, high temperature sintering; Metal dust applies appropriate compressive pre-stress when sintering to diamond core rod, improves core rod toughness further.
The present invention has the following advantages compared to existing technology: the present invention wraps up the adamantine material of broken granule at the metallic particles such as nickel, titanium of aluminium base middle interpolation different content, and reaching mould both ensure that adamantine intensity, rigidity in use, turn improved toughness; Due to employing is titanium alloy formwork, adds certain titanium elements, metal-powder and formwork can be made when high temperature sintering pressurizes to reach interatomic combination in metal-powder; Metal dust applies appropriate compressive pre-stress when sintering to diamond core rod, and improve core rod toughness further, mould repair number of times brings up to 5 ~ 10 times, and cost also reduces by 10%.
Accompanying drawing explanation
Fig. 1 is the structural representation of wire drawing die of the present invention.
Detailed description of the invention
Elaborate to embodiments of the invention below, the present embodiment is implemented under premised on technical solution of the present invention, give detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
Embodiment 1
The preparation method of the wire drawing die of the present embodiment, comprises the following steps:
(1) part mixed metal powder is put into formwork 1, cover gland 5, compaction on sintering press, take out gland 5;
(2) diamond grains 3 is put into the metal-powder center of step (1) compacting; Diamond grains 3 is 0.02 carat ~ 0.03 carat, and the diameter of effective overlapping area is 0.6mm;
(3) more remaining mixed metal powder is put into formwork 1, cover gland 5, put into high temperature sintering compacting on sintering press; The formwork 1 adding mixed metal powder is heated, pressure is applied while heating, keep temperature-resistant after being heated to 900 ~ 1100 DEG C, be pressurized to 4.5MPa and then keep pressure constant after being heated to design temperature, the time of heating pressurization is total up to 3 ~ 5min;
(4) punching is carried out to formwork 1 center after sintered compact and make wire drawing die; Wire drawing die drill process is followed successively by car and goes out taper hole, laser boring, grinding and polishing hole, metering hole;
Described mixed metal powder comprises Al45%, Ni40%, Ti10%, Fe2%, C3%.
The formwork 1 of the present embodiment is titanium alloy formwork 1.
As shown in Figure 1, the core rod of the wire drawing die obtained according to said method comprises formwork 1, gland 5, metal sintering block 2 and diamond grains, described metal sintering block 2 is embedded in formwork 1, gland 5 is positioned at the top of metal sintering block 2, gland 5 is concordant with the top of formwork 1, diamond grains to be embedded in metal sintering block 2 and to be positioned at the center of formwork 1, and nib 4 is offered at the center of metal sintering block 2.Anti-mouth 6 is formed on the bottom of metal sintering block 2 and diamond grains, and the height of described anti-mouth 6 is 15% of the core rod height of wire drawing die, and tinned copper wire 7 is positioned at nib 4 center of wire drawing die.
Embodiment 2
The mixed metal powder of the present embodiment comprises Al60, Ni30%, Ti8%, Fe1%, C1%.Other embodiments are identical with embodiment 1.
Embodiment 3
The mixed metal powder of the present embodiment comprises Al55%, Ni35%, Ti5%, Fe4%, C1%.Other embodiments are identical with embodiment 1.
Claims (6)
1. wrap up a preparation method for the tinned copper wire wire drawing die of diamond metal sinter, it is characterized in that, comprise the following steps:
(1) part mixed metal powder is put into formwork, compaction;
(2) diamond grains is put into the metal-powder center of step (1) compacting;
(3) more remaining mixed metal powder is put into formwork, high temperature sintering compacting;
(4) punching is carried out to the formwork center after sintered compact and make wire drawing die;
Described mixed metal powder comprises Al45% ~ 60%, Ni30% ~ 40%, Ti5% ~ 10%, Fe1% ~ 4%, C1% ~ 3%.
2. a kind of preparation method wrapping up the tinned copper wire wire drawing die of diamond metal sinter according to claim 1, it is characterized in that, in described step (3), the formwork adding mixed metal powder is heated, pressure is applied while heating, keep temperature-resistant after being heated to 900 ~ 1100 DEG C, be pressurized to 4.5MPa and then keep pressure constant after being heated to design temperature, the time of heating pressurization is total up to 3 ~ 5min.
3. a kind of preparation method wrapping up the tinned copper wire wire drawing die of diamond metal sinter according to claim 1, in described step (4), wire drawing die drill process is followed successively by car and goes out taper hole, laser boring, grinding and polishing hole, metering hole.
4. the wire drawing die that obtains of the preparation method of the as claimed in claim 1 tinned copper wire wire drawing die of parcel diamond metal sinter, it is characterized in that, the core rod of described wire drawing die comprises formwork, gland, metal sintering block and diamond grains, described metal sintering block is embedded in formwork, gland is positioned at the top of metal sintering block, gland is concordant with the top of formwork, and diamond grains to be embedded in metal sintering block and to be positioned at the center of formwork, and nib is offered at the center of metal sintering block.
5. wire drawing die according to claim 4, is characterized in that, anti-mouth is formed on the bottom of described metal sintering block and diamond grains, and the height of described anti-mouth is 15% of the core rod height of wire drawing die.
6. wire drawing die according to claim 4, is characterized in that, described formwork is titanium alloy formwork.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410102507.8A CN103861882B (en) | 2014-03-19 | 2014-03-19 | A kind of tinned copper wire wire drawing die wrapping up diamond metal sinter and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410102507.8A CN103861882B (en) | 2014-03-19 | 2014-03-19 | A kind of tinned copper wire wire drawing die wrapping up diamond metal sinter and preparation method thereof |
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| CN103861882A CN103861882A (en) | 2014-06-18 |
| CN103861882B true CN103861882B (en) | 2016-04-20 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104084438B (en) * | 2014-06-24 | 2016-01-20 | 浙江金平拉丝模有限公司 | Welding wire special diamond mould |
| CN107962079A (en) * | 2017-11-21 | 2018-04-27 | 郑州诚合信息技术有限公司 | A kind of grease immersion copper wire draw-off gear |
| CN110153208A (en) * | 2019-04-09 | 2019-08-23 | 安徽振兴拉丝模有限公司 | A kind of nickel-base alloy tin draws mould and preparation method thereof |
| CN113172181B (en) * | 2021-04-15 | 2023-04-14 | 航天瑞奇电缆有限公司 | Titanium alloy tinning die for tinning special-shaped copper monofilaments and manufacturing method thereof |
Citations (7)
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|---|---|---|---|---|
| US4378690A (en) * | 1980-01-15 | 1983-04-05 | Patent-Treuhand-Gesellschaft Fur Elektrische Gluhlampen Mbh | Diamond drawing die and setting combination |
| CN2565557Y (en) * | 2002-08-02 | 2003-08-13 | 陈继锋 | Mirror accumulative crystallization diamond wire drawing die |
| CN1544170A (en) * | 2003-11-11 | 2004-11-10 | 安 张 | Diamond die production process |
| CN101912888A (en) * | 2010-07-15 | 2010-12-15 | 江阴东大新材料研究院 | Manufacturing method of die core of wire-drawing die |
| CN102029298A (en) * | 2010-12-22 | 2011-04-27 | 济南大学 | Al2O3/TiC ceramic drawing die and manufacturing method thereof |
| CN103341627A (en) * | 2013-07-11 | 2013-10-09 | 安徽振兴拉丝模有限公司 | Wire-drawing die wrapping diamond high-temperature sintered body and preparation method of wire-drawing die |
| CN103480848A (en) * | 2013-09-30 | 2014-01-01 | 苏州益群模具有限公司 | Manufacturing method of high-performance wire-drawing die core |
-
2014
- 2014-03-19 CN CN201410102507.8A patent/CN103861882B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4378690A (en) * | 1980-01-15 | 1983-04-05 | Patent-Treuhand-Gesellschaft Fur Elektrische Gluhlampen Mbh | Diamond drawing die and setting combination |
| CN2565557Y (en) * | 2002-08-02 | 2003-08-13 | 陈继锋 | Mirror accumulative crystallization diamond wire drawing die |
| CN1544170A (en) * | 2003-11-11 | 2004-11-10 | 安 张 | Diamond die production process |
| CN101912888A (en) * | 2010-07-15 | 2010-12-15 | 江阴东大新材料研究院 | Manufacturing method of die core of wire-drawing die |
| CN102029298A (en) * | 2010-12-22 | 2011-04-27 | 济南大学 | Al2O3/TiC ceramic drawing die and manufacturing method thereof |
| CN103341627A (en) * | 2013-07-11 | 2013-10-09 | 安徽振兴拉丝模有限公司 | Wire-drawing die wrapping diamond high-temperature sintered body and preparation method of wire-drawing die |
| CN103480848A (en) * | 2013-09-30 | 2014-01-01 | 苏州益群模具有限公司 | Manufacturing method of high-performance wire-drawing die core |
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