CN206911953U - Prepare the wire-drawing die of 21 10Mn7Mo welding wires - Google Patents
Prepare the wire-drawing die of 21 10Mn7Mo welding wires Download PDFInfo
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Abstract
A kind of wire-drawing die for preparing 21 10Mn7Mo welding wires that this case provides, including wire-drawing die main body, the wire-drawing die main body include die sleeve and core rod.Direction is respectively equipped with five regions to described core rod from the inlet to the outlet：Inlet region, lubrication area, deformed area, calibrating strap and outlet area；In order to prevent welding wire from being scratched by corner angle, above-mentioned five regions pass sequentially through smooth circular sliding slopes, and in addition to calibrating strap is cylinder, above-mentioned inlet region, lubrication area, deformed area and outlet area are in the form of a truncated cone, and inlet region, lubrication area, the cone angle of deformed area are sequentially reduced, outlet area cone angle and inlet region cone angle size approach.It is through hole inside the die sleeve, is divided into through hole, middle through hole and lower through-hole.Upper through-hole diameter is slightly larger than the diameter of core rod in order to the installation of core rod.Middle through hole and core rod elastic conjunction are tightly to wrap core rod；Lower through-hole is conical butt.
Description
Technical field
This case belongs to welding wire manufacture device field, more particularly to a kind of wire-drawing die for preparing 21-10Mn7Mo welding wires.
Background technology
At present, in welding wire production, the drawing procedure of welding wire be ensure welding wire obtain given size, good surface quality and
Ensure the key link of Wire Performance.For the welding wire of high intensity, such as 21-10Mn7Mo welding wires, because the welding wire is in national standard
Appropriate Mo is with the addition of on the basis of grade of steel H1Cr21Ni10Mn6 stainless steel welding sticks, while is correspondingly improved Mn content, makes weldering
Silk tensile strength has reached more than 1200MPa, and processing hardening is serious compared with solid wire, it is easier to cause welding wire feeding it is not smooth,
Outward appearance is bad or even core rod is ftractureed, mold damage, it is therefore desirable to rationally designs drawing mould.
Prior art such as Chinese patent document " 201210071951.9 microfilament wire-drawing die " discloses a kind of microfilament wire drawing
Mould, is related to a kind of metal material processing mould, including die ontology, and die ontology is provided with nib；Nib is in entrance point point
Not She You the entrance region of taper, lubrication area and compressional zone, entrance region, lubrication area and compressional zone pass sequentially through circular sliding slopes, and enter
The cone angle of mouth region, lubrication area and compressional zone is sequentially reduced；Nib further respectively has the depressor area and outlet area of taper in the port of export,
Depressor area and outlet area are increased successively by circular sliding slopes, and the cone angle of depressor area and outlet area；Described compressional zone and decompression
Nib between area is columnar sizing area, passes through circular sliding slopes respectively between the sizing area and compressional zone, depressor area.
And for example Chinese patent document discloses " 201520034228.2 novel welding wire drawing mould " and claimed with rationally drawing
The novel welding wire drawing mould of angle and drawing mould proportioning is pulled out, includes the inlet angle of rational proportion size, calibrating strap and goes out
Bicker, include the drawing angle of special angle：2α=（D0- D1）/ D0 * 180/3.14*4,2 α are drawing angle, D0For inlet wire chi
It is very little, D1To go out linear dimension.Dies compress rate is Z=1- (dm /d0)2, wherein Z is compression ratio, dmTo go out linear diameter, d0It is straight for inlet wire
Footpath.
For another example Chinese patent document " a kind of 201520658608.3 wire-drawing die " discloses a kind of wire-drawing die, including mould
Set and core rod, the core rod include end cap and stem, and the end cap and stem are provided with a nib altogether, and the end cap and die sleeve are set altogether
There is positioning screw hole, end cap is threadedly coupled with die sleeve by positioning screw hole, and the stem is cube structure, is set inside the die sleeve
There is the hollow cube structure supporting with stem, the die sleeve is cylinder, and described core rod is sequentially provided with entrance region, lubrication
Area, the first compressional zone, the first sizing area, bonding pad, the second compressional zone, the second sizing area and outlet area.
But for the less 21-10Mn7Mo thin welding wires of diameter, because the welding wire tensile strength is high, it is easy in drawing
During, core rod core rod is ftractureed by larger tangential stress, is reduced the core rod life-span；Other above-mentioned prior art is simultaneously
Can not solve the problems, such as that the drawing of 21-10Mn7Mo welding wire difficulties, wire feed be not smooth, easily blocks up tip, and welding wire surface quality can be by one
It is fixing to ring.
The content of the invention
In order to solve the above problems, this case provides a kind of wire drawing die for preparing 21-10Mn7Mo welding wires rational in infrastructure
Tool.
This case is solved technical problem and realized using following technical scheme：A kind of drawing for preparing 21-10Mn7Mo welding wires
Silk mould, including wire-drawing die main body, the wire-drawing die main body include die sleeve and core rod.Described core rod is from the inlet to the outlet
Direction is respectively equipped with five regions：Inlet region, lubrication area, deformed area, calibrating strap and outlet area；In order to prevent welding wire from being drawn by corner angle
Wound, above-mentioned five regions pass sequentially through smooth circular sliding slopes, and in addition to calibrating strap is cylinder, above-mentioned inlet region, lubrication area, become
In the form of a truncated cone, and inlet region, lubrication area, the cone angle of deformed area are sequentially reduced for shape area and outlet area, outlet area cone angle and
Inlet region cone angle size approaches.As gage of wire ＞ 2mm and≤5mm, the preferred hard of core rod (2-n-361-2) material closes
Gold, as gage of wire≤2mm, using man-made polycrystalline diamond core rod.
It is through hole inside the die sleeve, is divided into through hole, middle through hole and lower through-hole.Upper through-hole diameter is straight slightly larger than core rod
Footpath is in order to the installation of core rod.Middle through hole and core rod elastic conjunction are tightly to wrap core rod；Lower through-hole is frustum of a cone
Shape, preferably 70 ° of its taper angle theta, die sleeve material preferably steel or powder metallurgy.
The further technical scheme of this case is：In below 5mm, the cone angle in mold core gate area is the gage of wire of preparation
60 °~65 °, the cone angle beta for lubricating area is 40 °~45 °, and the cone angle gamma of deformed area is 12 °~14 °, and the cone angle δ of outlet area is 60 °
~65 °.
The further technical scheme of this case is：During gage of wire≤5mm of preparation, the length L1 of described inlet region is
(0.25~0.35) H, the length L2 for lubricating area are (2.5~3.5) D, and the length L3 of deformed area is (2~3) D, the length of calibrating strap
Degree L4 is (0.5-0.6) D, and the length L5 of outlet area is (0.12~0.2) H, and wherein D is the diameter of calibrating strap, and H is die sleeve axial direction
Length.
This case has the advantages of notable and beneficial effect compared with prior art：
1st, the wire-drawing die for preparing 21-10Mn7Mo welding wires that this case provides includes die sleeve and core rod, die sleeve and core rod interference
Assemble rather than be integrally formed, so die sleeve is tightly wrapped core rod, so as to when welding wire carries out drawing, offset or reduce
Tangential stress suffered by core rod, increase the life-span of core rod.
2nd, die sleeve endoporus is divided into through hole, middle through hole and lower through-hole, and the structure of upper through hole and lower through-hole can house more
Powdered lubricant, welding wire in drawing process is set to be lubricated enough and be more conducive to protection core rod, open structure avoids in addition
Welding wire is scratched at gateway by hole wall.
When the 3rd, preparing diameter≤5mm 21-10Mn7Mo welding wires, the cone angle in mold core gate area is 60 °~65 °, lubricates area
Cone angle beta be 40 °~45 °, the cone angle gamma of deformed area is 12 °~14 °, and the cone angle δ of outlet area is 60 °~65 °, and/or, it is described
The length L1 of inlet region be (0.25~0.35) H, the length L2 for lubricating area is (2.5~3.5) D, and the length L3 of deformed area is
(2~3) D, the length L4 of calibrating strap is (0.5-0.6) D, and the length L5 of outlet area is (0.12~0.2) H, and wherein D is calibrating strap
Diameter, H is die sleeve axial length.This group by manufacturing experimently the data drawn repeatedly, it can be ensured that 21-10Mn7Mo is this high-strength
The welding wire of the difficult deformation of degree remains able to ensure sufficiently high dimensional accuracy and surface matter during filament is drawn into
Amount, and drawing is smooth, and fracture of wire, does not hinder mould.
Man-made polycrystalline diamond core rod is used when the 4th, preparing diameter≤2mm 21-10Mn7Mo welding wires, wearability is good, Neng Goubao
The cracking of core rod when demonstrate,proving the roundness of silk material, and can reduce drawing, reduces core rod learies, long lifespan, price are compared with day in addition
Right diamond is cheap.
Brief description of the drawings
Fig. 1 is the front cross-section view for the die main body for preparing 21-10Mn7Mo high-strength welding wires；
In above-mentioned accompanying drawing, each label is as follows：
2-n-361-1 --- die sleeve, 2-n-361-2 --- core rod, H --- die sleeve axial length.
Fig. 2 a and Fig. 2 b are the front cross-section views for the mould core for preparing 21-10Mn7Mo high-strength welding wires；
In above-mentioned accompanying drawing, each label is as follows：
2-n-361-3 --- nib, 2-n-361-3a --- inlet region, 2-n-361-3b --- lubrication area,
2-n-361-3c --- deformed area, 2-n-361-3d --- calibrating strap, 2-n-361-3e --- outlet area,
α --- inlet region cone angle, β --- lubrication area's cone angle, γ --- deformed area cone angle, δ --- outlet area cone angle,
L1 --- inlet region axial length, L2 --- lubrication area's axial length, L3 --- deformed area axial length,
L4 --- calibrating strap axial length, L5 --- outlet area axial length, D --- calibrating strap diameter.
Fig. 3 is the front cross-section view for the mould die sleeve for preparing 21-10Mn7Mo high-strength welding wires；
In above-mentioned accompanying drawing, each label is as follows：
2-n-361-4 --- through hole, 2-n-361-4a --- upper through hole, 2-n-361-4b --- middle through hole,
2-n-361-4c --- lower through-hole.
Fig. 4 is the mould left view for preparing 21-10Mn7Mo high-strength welding wires；
Fig. 5 is the mould right view for preparing 21-10Mn7Mo high-strength welding wires；
Fig. 6 is the mould top view for preparing 21-10Mn7Mo high-strength welding wires, and upward view, front and rear view are herewith schemed；
Fig. 7 is the mould stereogram for preparing 21-10Mn7Mo high-strength welding wires.
Embodiment
Describe the preferred embodiment of the wire-drawing die of this case in detail below in conjunction with the accompanying drawings.
Embodiment one：
A kind of wire-drawing die for preparing 21-10Mn7Mo welding wires, as shown in figure 1, including wire-drawing die main body 2-n-361, institute
Stating wire-drawing die main body 2-n-361 includes die sleeve 2-n-361-1 and core rod 2-n-361-2.
Such as Fig. 2 a and Fig. 2 b, described core rod 2-n-361-2 is cylinder, is provided with penetrating nib 2-n-361-3 in it,
Direction is respectively equipped with five regions to described nib 2-n-361-3 from the inlet to the outlet：Inlet region 2-n-361-3a, lubrication area 2-
N-361-3b, deformed area 2-n-361-3c, calibrating strap 2-n-361-3d and outlet area 2-n-361-3e；In order to prevent welding wire by rib
Angle scratches, and above-mentioned five regions pass sequentially through smooth circular sliding slopes, and in addition to calibrating strap 2-n-361-3d is cylinder, it is above-mentioned enter
Mouth region 2-n-361-3a, lubrication area 2-n-361-3b, deformed area 2-n-361-3c and outlet area 2-n-361-3e justify in butt
Taper, and inlet region 2-n-361-3a, lubrication area 2-n-361-3b, deformed area 2-n-361-3c cone angle are sequentially reduced, and are exported
Area's 2-n-361-3e cone angles and inlet region 2-n-361-3a cone angle sizes approach.
The gage of wire ＞ 4.0mm and≤5.0mm of preparation, or/and, when welding wire draft is 25%, described inlet region 2-
Preferably 65 ° of n-361-3a cone angles, lubricate area 2-n-361-3b preferably 45 ° of cone angle beta, deformed area 2-n-361-3c cone angle gamma
Excellent reduction selects 14 °, preferably 65 ° of outlet area 2-n-361-3e cone angles δ, and draft is equal to the area in section and drawing after drawing welding wire
Starting section area ratio；The preferred man-made polycrystalline diamond of core rod 2-n-361-3 materials.
The inlet region 2-n-361-3a axial length Ls 1 are 0.25H, and lubrication area's 2-n-361-3b axial length Ls 2 are
0.7D, deformed area 2-n-361-3c axial length Ls 3 are 1.4D, and calibrating strap 2-n-361-3d axial length Ls 4 are 0.6D, outlet area
2-n-361-3e axial length Ls 5 preferred 0.12H, wherein D are equal to calibrating strap 2-n-361-3d diameter, and H is die sleeve 2-n-361-
1 axial length.
Such as Fig. 3, above-mentioned die sleeve 2-n-361-1 is cylinder, and inside is through hole 2-n-361-4.The through hole 2-n-361-4
It is divided into through hole 2-n-361-4a, middle through hole 2-n-361-4b and lower through-hole 2-n-361-4c.The upper through hole 2-n-361-4a
It is cylinder, its diameter is slightly larger than above-mentioned core rod 2-n-361-2 diameter；Middle through hole 2-n-361-4b is and core rod 2-n-361-
The cylinder of 2 elastic conjunctions, middle through hole 2-n-361-4b diameter have 7 ~ 10 μm of magnitudes of interference compared with core rod 2-n-361-2 external diameter,
Tightly to wrap core rod 2-n-361-2, so as to when welding wire carries out drawing, offset or reduce core rod 2-n-261-2 institutes
The tangential stress received, increase core rod 2-n-261-2 life-span；The lower through-hole 2-n-361-4c is conical butt, and it is bored
Preferably 70 ° of angle θ.Die sleeve 2-n-261-1 materials preferably steel or powder metallurgy.
During work, welding wire enters lubrication area 2-n-361-3b by inlet region 2-n-361-3a first, and welding wire passes through herein
Cross sufficient lubrication and carry lubricant and enter deformed area 2-n-361-3c, now welding wire is plastically deformed by certain draft,
Tentatively attenuate, then welding wire final diameter is determined by above-mentioned calibrating strap 2-n-361-3d, finally by outlet area 2-n-361-3e
Complete drawing process.
Embodiment two：
A kind of wire-drawing die for preparing 21-10Mn7Mo welding wires, the basic structure of the mould is the same as embodiment one, difference
It is：The cone angle in each regions of nib 2-n-361-3 is different with length parameter, is specially：The gage of wire ＞ 3.0mm of preparation
And≤4.0mm silks, or/and, welding wire draft is at 25%, preferably 63 ° of described inlet region 2-n-361-3a angle [alpha]s, lubricates area
Preferably 44 ° of 2-n-361-3b cone angle beta, preferably 13 ° of deformed area 2-n-361-3c cone angle gamma, outlet area 2-n-361-3e cone angles
Preferably 63 ° of δ, draft are equal to the area and drawing starting section area ratio of section reduction after drawing welding wire.
Inlet region 2-n-361-3a axial length Ls 1 are 0.28H, and lubrication area's 2-n-361-3b axial length Ls 2 are 1D, deformation
Area's 2-n-361-3c axial length Ls 3 are 1.4D, and calibrating strap 2-n-361-3d axial length Ls 4 are 0.6D, outlet area 2-n-361-
3e axial length Ls 5 preferred 0.13H, wherein D are equal to calibrating strap 2-n-361-3d diameter, and H is die sleeve 2-n-361-1 axially long
Degree；The preferred hard alloy of core rod 2-n-361-3 materials.
Embodiment three：
A kind of wire-drawing die for preparing 21-10Mn7Mo welding wires, the basic structure of the mould is the same as embodiment one, difference
It is：The cone angle in each regions of nib 2-n-361-3 is different with length parameter, is specially：The gage of wire ＞ 2.0mm of preparation
And≤3.0mm, or/and, welding wire draft is at 12%, preferably 62 ° of described inlet region 2-n-361-3a angle [alpha]s, lubricates area 2-
Preferably 43 ° of n-361-3b cone angle beta, preferably 12 ° of deformed area 2-n-361-3c cone angle gamma, outlet area 2-n-361-3e cone angles δ
It is preferred that 62 °, draft is equal to the area and drawing starting section area ratio of section reduction after drawing welding wire.
1 preferred 0.3H of inlet region 2-n-361-3a axial length Ls, lubrication area's 2-n-361-3b axial length Ls 2 are preferred
1.25D, 3 preferred 1.3D of deformed area 2-n-361-3c axial length Ls, calibrating strap 2-n-361-3d axial length Ls 4 are 0.5D, are gone out
Mouth region 2-n-361-3e axial length Ls 5 preferred 0.15H, wherein D are equal to calibrating strap 2-n-361-3d diameter, and H is die sleeve 2-n-
361-1 axial lengths；The preferred hard alloy of core rod 2-n-361-3 materials.
Example IV：
A kind of wire-drawing die for preparing 21-10Mn7Mo welding wires, the basic structure of the mould is the same as embodiment one, difference
It is：The cone angle in each regions of nib 2-n-361-3 is different with length parameter, is specially：The gage of wire ＞ 1.0mm of preparation
And≤2.0mm, or/and, welding wire draft is at 11%, preferably 61 ° of described inlet region 2-n-361-3a angle [alpha]s, lubricates area 2-
Preferably 42 ° of n-361-3b cone angle beta, preferably 10 ° of deformed area 2-n-361-3c cone angle gamma, outlet area 2-n-361-3e cone angles δ
It is preferred that 61 °, draft is equal to the area and drawing starting section area ratio of section reduction after drawing welding wire.
1 preferred 0.32H of inlet region 2-n-361-3a axial length Ls, lubrication area's 2-n-361-3b axial length Ls 2 are preferred
0.25H, 3 preferred 1.3D of deformed area 2-n-361-3c axial length Ls, calibrating strap 2-n-361-3d axial length Ls 4 are 0.5D, are gone out
Mouth region 2-n-361-3e axial length Ls 5 preferred 0.18H, wherein D are equal to calibrating strap 2-n-361-3d diameter, and H is die sleeve 2-n-
361-1 axial lengths.When preparing the diameter of welding wire in below 2mm, because principle is hardened in processing, by the drawing compared with multi-pass
Afterwards, welding wire processing is hardened than more prominent, now the preferred man-made polycrystalline diamond of core rod 2-n-361-3 materials, man-made polycrystalline diamond mould
Entirely different with natural single crystal diamond, wearability is good, the roundness of silk material will not be destroyed because of uneven wear, and can subtract
The cracking of core rod during few drawing, reduces core rod learies, long lifespan, price are cheap compared with rough diamond in addition.
Embodiment five：
A kind of wire-drawing die for preparing 21-10Mn7Mo welding wires, the basic structure of the mould is the same as embodiment one, difference
It is：The cone angle in each regions of nib 2-n-361-3 is different with length parameter, is specially：The gage of wire of preparation≤
1.0mm, or/and, welding wire draft is at 8%, preferably 60 ° of described inlet region 2-n-361-3a angle [alpha]s, lubricates area 2-n-
Preferably 40 ° of 361-3b cone angle beta, preferably 8 ° of deformed area 2-n-361-3c cone angle gamma, outlet area 2-n-361-3e cone angles δ is preferred
60 °, draft is equal to the area and drawing starting section area ratio of section reduction after drawing welding wire.
1 preferred 0.35H of inlet region 2-n-361-3a axial length Ls, lubrication area's 2-n-361-3b axial length Ls 2 are preferred
2.5D, 3 preferred 2D of deformed area 2-n-361-3c axial length Ls, calibrating strap 2-n-361-3d axial length Ls 4 are 0.5D, outlet area
2-n-361-3e axial length Ls 5 preferred 0.2H, wherein D are equal to calibrating strap 2-n-361-3d diameter, and H is die sleeve 2-n-361-1
Axial length.The preferred man-made polycrystalline diamond of core rod 2-n-361-3 materials.
As one kind conversion of embodiment one to embodiment five, the cone angle of each working region of the nib 2-n-361-3
Numerical value can increase or reduce, generally, gage of wire≤5mm of preparation, and/or, the draft of welding wire is 8% ~ 25%
When, described inlet region 2-n-361-3a cone angle is 60 °~65 °, and lubrication area 2-n-361-3b cone angle beta is 40 °~45 °,
Deformed area 2-n-361-3c cone angle gamma is 12 °~14 °, and outlet area 2-n-361-3e cone angle δ is 60 °~65 °.
Another as embodiment one to embodiment five converts, generally, gage of wire≤5mm of preparation, and/
Or, the draft of welding wire, at 8% ~ 25%, described inlet region 2-n-361-3a length L1 is (0.25~0.35) H, lubrication
Area 2-n-361-3b length L2 is (2.5~3.5) D, and deformed area 2-n-361-3c length L3 is (2~3) D, calibrating strap 2-
N-361-3d length L4 is (0.5-0.6) D, and outlet area 2-n-361-3e length L5 is (0.12~0.2) H, and wherein D is fixed
Diameter of the footpath with 2-n-361-3d, H are die sleeve 2-n-361-1 axial lengths.
As the further conversion of embodiment one to embodiment five, the wire-drawing die main body of such scheme protection is unlimited
In carrying out drawing to 21-10Mn7Mo high-strength welding wires, as long as silk material diameter and draft meet any requirement in above-mentioned five schemes
, wire-drawing die is all within this case protection domain.
Claims (5)
1. a kind of wire-drawing die for preparing 21-10Mn7Mo welding wires, including wire-drawing die main body (2-n-361), the wire-drawing die
Main body (2-n-361) includes die sleeve (2-n-361-1) and core rod (2-n-361-2), it is characterised in that：Described core rod (2-n-
361-2) direction is respectively equipped with inlet region (2-n-361-3a), lubrication area (2-n-361-3b), deformed area (2- from the inlet to the outlet
N-361-3c), calibrating strap (2-n-361-3d) and outlet area (2-n-361-3e), above-mentioned regional pass sequentially through smooth circular arc
Connection, and in addition to calibrating strap (2-n-361-3d) is cylinder, above-mentioned inlet region (2-n-361-3a), lubrication area (2-n-361-
3b), deformed area (2-n-361-3c) and outlet area (2-n-361-3e) in the form of a truncated cone, and inlet region (2-n-361-
3a), area (2-n-361-3b) is lubricated, the cone angle of deformed area (2-n-361-3c) is sequentially reduced, outlet area (2-n-361-3e) cone
Angle and inlet region (2-n-361-3a) cone angle size approach；It is through hole (2-n-361-4) that the die sleeve (2-n-361-1) is internal,
It is divided into through hole (2-n-361-4a), middle through hole (2-n-361-4b) and lower through-hole (2-n-361-4c), upper through hole (2-n-361-
4a) diameter is slightly larger than the diameter of core rod (2-n-361-2)；Middle through hole (2-n-361-4b) fills with core rod (2-n-361-2) interference
Match somebody with somebody, the magnitude of interference is 7 ~ 10 μm；Lower through-hole (2-n-361-4c) is conical butt, preferably 70 ° of its taper angle theta.
2. wire-drawing die according to claim 1, it is characterised in that：Diameter≤5mm of the 21-10Mn7Mo welding wires of preparation,
And/or the draft of welding wire is at 8% ~ 25%, the cone angle of the inlet region (2-n-361-3a) of described core rod (2-n-361-2)
For 60 °~65 °, the cone angle beta of lubrication area (2-n-361-3b) is 40 °~45 °, and the cone angle gamma of deformed area (2-n-361-3c) is
12 °~14 °, the cone angle δ of outlet area (2-n-361-3e) is 60 °~65 °.
3. wire-drawing die according to claim 1 or 2, it is characterised in that：The diameter of the 21-10Mn7Mo welding wires of preparation≤
5mm, and/or, the draft of welding wire at 8% ~ 25%, the length L1 of described inlet region (2-n-361-3a) for (0.25~
0.35) H, the length L2 of lubrication area (2-n-361-3b) is (2.5~3.5) D, and the length L3 of deformed area (2-n-361-3c) is (2
~3) D, the length L4 of calibrating strap (2-n-361-3d) is (0.5-0.6) D, and the length L5 of outlet area (2-n-361-3e) is
(0.12~0.2) H, wherein D are calibrating strap (2-n-361-3d) diameters, and H is die sleeve (2-n-361-1) axial length.
4. wire-drawing die according to claim 1, it is characterised in that：The diameter ＞ 2mm of the 21-10Mn7Mo welding wires of preparation
And during≤5mm, the preferred hard alloy of core rod (2-n-361-2) material；When preparing diameter≤2mm of welding wire, core rod (2-n-
361-2) the preferred man-made polycrystalline diamond of material.
5. wire-drawing die according to claim 1, it is characterised in that：Die sleeve (2-n-361-1) material preferably steel or powder
It is metallurgical.
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| CN108326061A (en) * | 2018-04-11 | 2018-07-27 | 苏州市天星山精密模具有限公司 | The high wire-drawing die of production efficiency |
| CN109351789A (en) * | 2018-12-03 | 2019-02-19 | 安徽恒明工程技术有限公司 | Accurate drawing mould for the forming of minor radius round rectangle enameled wire |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108015115A (en) * | 2016-11-02 | 2018-05-11 | 天津冶金集团天材科技发展有限公司 | Prepare the wire-drawing die of 21-10Mn7Mo welding wires |
| CN108326061A (en) * | 2018-04-11 | 2018-07-27 | 苏州市天星山精密模具有限公司 | The high wire-drawing die of production efficiency |
| CN109351789A (en) * | 2018-12-03 | 2019-02-19 | 安徽恒明工程技术有限公司 | Accurate drawing mould for the forming of minor radius round rectangle enameled wire |
| CN109461540A (en) * | 2018-12-03 | 2019-03-12 | 安徽恒明工程技术有限公司 | A kind of minor radius round rectangle section enamel covered wire and its production method |
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