Cable formula welding wire
Technical field
This utility model relates to welding wire technology field, is specifically related to a kind of cable formula welding wire.
Background technology
Cable formula welding wire (also known as multi-strand stranded welding wire) by middle cored welding wire and is wound in lead angle α
Many on cored welding wire tangent to each other and that diameter is identical peripheral welding wires are constituted.Cable formula welding wire has dish
During, wire feed good around property, outspoken nature is good, welding time fusion penetration melt roomy and deposition efficiency advantages of higher,
Its reason is: (1) utilizes cable formula welding wire to weld (such as CO2Gas shield welding) time periphery welding wire primary anode
District rotates around middle cored welding wire anode region with the feeding of cable formula welding wire, and quickly synthesizes a unification
Pencil rotate arc column district, this pencil rotating welding electric arc is conducive to wire melting, droplet transfer, has
In being beneficial to molten bath, fluid produces strong agitation effect so that gas overflowing and beneficial element in motlten metal
It is uniformly distributed in molten bath, thus reduces weld defect, improve welding quality;(2) cable formula welding wire tool
Having vortex patern fluid flow pattern, in welding process there is vortex patern flowing, liquid in liquid state of molten pool metal
The eddy motion of metal makes molten bath medial recess, drives high temperature fluent metal to molten bath flows, has
It is beneficial to increase fusion penetration.
The welding performance of cable formula welding wire is relevant with lay pitch T of peripheral welding wire.So-called lay pitch T refers to periphery
Welding wire rotates a circle around middle cored welding wire the air line distance of (360 °) corresponding point-to-point transmission.At present, giving birth to
Produce and cable formula welding wire is generally regarded as single-strand rope by practice, and the standard with reference to single-strand rope is true
Determine lay pitch T of cable formula welding wire.I.e. according to the regulation of GB GB/20118-2008, the single-strand rope lay pitch
T=laying pitch coefficient × rope footpath (or stock footpath), the laying pitch coefficient of 1 × 7 is not more than 10.5, general factory
Use 6.5-7.0.For the single-strand rope of 1 × 7 (i.e. 1+6) that filament diameter is 1mm, its rope
Footpath is substantially equal to 3, then the lay pitch should be less than 31.5mm, and the actual lay pitch of general factory is about 20mm.
But, the structure of cable formula welding wire and material have the biggest difference with steel wire rope: first, cable formula welding wire
The diameter of middle cored welding wire and peripheral welding wire can be the same or different, and when peripheral welding wire number is more than 6
Time, the diameter of middle cored welding wire is then more than the diameter of peripheral welding wire, such as outside 9 a diameter of 1.53mm
Weld all around silk, then the diameter of middle cored welding wire is slightly larger than 2.94mm, and does not has this structure in steel wire rope;Its
Secondary, that the material of steel wire rope generally uses phosphorus content to be 0.5%-0.8% Fine Steel Casting iron, i.e. 50,60,
No. 65 steel, and the material of cable formula welding wire is usually low-alloy and microalloy structural steel, corrosion-resistant stainless steel
Or medicated core.And, the arc characteristic during consideration wire melting and molten drop are also needed for cable formula welding wire
Excessively feature, thus standard with reference to single-strand rope determines cable formula in the production practices of cable formula welding wire
Lay pitch T of welding wire is inaccurate.
Therefore, how according to the structure of cable formula welding wire and material, the cable formula welding wire with the suitable lay pitch to be proposed
To improve the quality of production and the welding performance of cable formula welding wire, become the most in the urgent need to address current asking
One of topic.
Utility model content
Therefore, the technical problems to be solved in the utility model is to overcome cable formula welding wire in prior art
The quality of production and the poor defect of welding performance.
To this end, this utility model provides a kind of cable formula welding wire, curl up institute including middle cored welding wire and spiral
Stating the n root periphery welding wire that middle cored welding wire is arranged, the diameter of each described peripheral welding wire is d, and each adjacent
The described peripheral tangent setting of welding wire, it is characterised in that the lay pitch T=K × m × d of described peripheral welding wire,
Wherein K is the structural coefficient of described peripheral welding wire, and m is laying pitch coefficient, and d is described peripheral welding wire
Diameter, 1≤K≤1.5,20≤m≤25.
As preferably, when described peripheral welding wire is solid welding wire, 1≤K≤1.1;Described peripheral welding wire is
During seamless flux-cored wire, 1.1≤K≤1.3;When described peripheral welding wire is seamed cored wire, 1.2≤K
≤1.5。
As preferably, when described peripheral welding wire is solid welding wire, K=1;Described peripheral welding wire is seamless medicine
During core welding wire, 1.1≤K≤1.2;When described peripheral welding wire is seamed cored wire, 1.2≤K≤1.3.
As preferably, the direction of rotation of described peripheral welding wire and the vertical direction of described center welding wire length
Between angle be lead angle α, and α=arccos (T/nd).
As preferably, a diameter of f of described middle cored welding wire, and f=d × [(1/sin2α+1/tg2(π/n))1/2-1],
The diameter of described cable formula welding wire is equal to f+2d.
As preferably, 60 °≤α≤80 °.
As preferably, 65 °≤α≤75 °.
As preferably, m=24.
As preferably, 1.5mm≤d≤2.0mm.
Technical solutions of the utility model, have the advantage that
This utility model finds based on knowhow, lay pitch T of cable formula welding wire and the quality of production and weld
Performance is closely related, i.e. lay pitch T is too small, is easily generated fracture of wire in the production process of cable formula welding wire;Twist with the fingers
Excessive away from T, the compactness of peripheral welding wire is inadequate so that in welding process, wire feed is unstable;Meanwhile,
This utility model is by discovery after a large amount of theories and experimental study, the lay pitch T=K × m × d of peripheral welding wire
(wherein K is the structural coefficient of described peripheral welding wire, and m is laying pitch coefficient, and d is described peripheral welding wire
Diameter) time, cable formula welding wire is not likely to produce fracture of wire in process of production, improves twisting qualification rate, thus
Cost can be greatly reduced, increase economic efficiency, the practicality produced and cost benefit accord with completely
Needed for conjunction industry development;And during welding, there is bigger fusion penetration, the weld seam number of plies of thick plates can be reduced,
Welding productivity is greatly improved, reduces production cost, and it is few, outside weld joint mechanical performance height to splash
Weld all around silk is tightr so that wire feed process is more stable, thus improves the weldability of cable formula welding wire
Energy.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model detailed description of the invention or technical side of the prior art
Case, will make simply the accompanying drawing used required in detailed description of the invention or description of the prior art below
Introduce, it should be apparent that, the accompanying drawing in describing below is embodiments more of the present utility model, right
From the point of view of those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to according to
These accompanying drawings obtain other accompanying drawing.
Fig. 1 is the structural front view of the 1+6 cable formula welding wire that this utility model embodiment provides;
Fig. 2 is the cross-sectional view of the 1+6 cable formula welding wire that Fig. 1 provides;
Fig. 3 is the expansion schematic diagram of the peripheral welding wire of the 1+6 cable formula welding wire that Fig. 1 provides;
Fig. 4 is the cross-sectional view of the 1+7 cable formula welding wire that this utility model embodiment provides;
Fig. 5 is the cross-sectional view of the 1+8 cable formula welding wire that this utility model embodiment provides;
Fig. 6 is the cross-sectional view of the 1+9 cable formula welding wire that this utility model embodiment provides;
Fig. 7 is the cross-sectional view of the 1+10 cable formula welding wire that this utility model embodiment provides.
Detailed description of the invention
Below in conjunction with accompanying drawing, the technical solution of the utility model is clearly and completely described, aobvious
So, described embodiment is a part of embodiment of this utility model rather than whole embodiments.
Based on the embodiment in this utility model, those of ordinary skill in the art are not making creative work
The every other embodiment obtained under premise, broadly falls into the scope of this utility model protection.
In description of the present utility model, it should be noted that term " " center ", " on ", D score,
Orientation or the position relationship of the instruction such as "left", "right", " vertically ", " level ", " interior ", " outward " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of description this utility model and simplification is retouched
State rather than indicate or imply that the device of indication or element must have specific orientation, with specifically
Azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.Additionally, term " the
One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that instruction or imply relatively heavy
The property wanted.Additionally, technical characteristic involved in this utility model difference embodiment disclosed below
As long as the conflict of not constituting each other just can be combined with each other.
This utility model finds based on knowhow, lay pitch T of cable formula welding wire and the quality of production and weld
Performance is closely related, i.e. lay pitch T is too small, is easily generated fracture of wire in the production process of cable formula welding wire;Twist with the fingers
Excessive away from T, the compactness of peripheral welding wire is inadequate so that in welding process, wire feed is unstable.Based on this,
After this utility model is by a large amount of theories and experimental study, it is provided that a kind of cable formula welding wire, including center
Welding wire and spiral curl up the n root periphery welding wire that described middle cored welding wire is arranged, each described peripheral welding wire straight
Footpath is d, and each adjacent described peripheral tangent setting of welding wire, it is characterised in that described peripheral welding wire
Lay pitch T=K × m × d, wherein K is the structural coefficient of described peripheral welding wire, and m is laying pitch coefficient, d
For the diameter of described peripheral welding wire, 1≤K≤1.5,20≤m≤25.
This utility model by lay pitch T of peripheral welding wire is set to K × m × d (wherein K be described outside
The structural coefficient of weld all around silk, m is laying pitch coefficient, and d is the diameter of described peripheral welding wire) so that cable formula
Welding wire is not likely to produce fracture of wire in process of production, improves twisting qualification rate, such that it is able to be greatly reduced into
This, increase economic efficiency, needed for complying fully with industry development in the practicality produced and cost benefit;
And during welding, there is bigger fusion penetration, the weld seam number of plies of thick plates can be reduced, welding production is greatly improved
Rate, reduces production cost, and it is few to splash, and weld joint mechanical performance height periphery welding wire is relatively tightr,
Make wire feed process more stable, thus improve the welding performance of cable formula welding wire.
As preferred embodiment, when described peripheral welding wire is solid welding wire, 1≤K≤1.1;Described
When peripheral welding wire is seamless flux-cored wire, 1.1≤K≤1.3;Described peripheral welding wire is seamed cored wire
Time, 1.2≤K≤1.5.
This utility model finds after a large amount of theories and experimentation, above-mentioned for solid welding wire, nothing
Stitch flux-cored wire and the material of seamed cored wire and set the mode of defining K value, be conducive to improving further
The welding performance of cable formula welding wire.
As further preferred embodiment, when described peripheral welding wire is solid welding wire, K=1;Described
When peripheral welding wire is seamless flux-cored wire, 1.1≤K≤1.2;Described peripheral welding wire is seamed cored wire
Time, 1.2≤K≤1.3.
The set-up mode of above-mentioned K value makes cable formula welding wire be less susceptible to produce fracture of wire in process of production, and
During welding, periphery welding wire is tightr so that wire feed process is the most stable, thus carries further
The welding performance of high cable formula welding wire.
As preferred embodiment, the direction of rotation of described peripheral welding wire and described center welding wire length
Vertical direction between angle be lead angle α, and α=arccos (T/nd).
Above-mentioned formula can draw according to Fig. 1 and Fig. 3.From Fig. 1 and Fig. 3, lay pitch T is also etc.
In peripheral welding wire tangent major diameter sum, i.e. T=2nr/cos α, thus obtain α=arccos (T/nd).
As preferred embodiment, a diameter of f of described middle cored welding wire, and f=d ×
[(1/sin2α+1/tg2(π/n))1/2-1], the diameter of described cable formula welding wire is equal to f+2d.
Above-mentioned embodiment is obtained by mode calculated below: lay pitch T=2 π (R+r) tg α=π (D+d),
In formula: cored welding wire radius of circle (mm) in R-;R-periphery welding wire radius;Alpha-helix lift angle (is spent).By
Curl up with lead angle α on middle cored welding wire circumference and tangent to each other in peripheral welding wire, outer weld all around
Silk projection on the cross section of cable formula welding wire is the most oval, and the derivation of equation for convenience, approximation
Oval replacement with major semiaxis a=r/sin α, semi-minor axis b=r.Thus can derive: R=r ×
[(1/sin2α+1/tg2(π/n))1/2-1].Wherein: n--periphery welding wire number.Visible, by n root phase
The monolayer cable formula welding wire constituted around a middle cored welding wire with the peripheral welding wire of diameter, wherein cored welding wire
Diameter should more than the peripheral welding wire circle calculated center circle diameter tangent to each other by n,
Its size is relevant with lead angle α of peripheral welding wire.As preferred embodiment, 60 °≤α≤
80°。
This utility model research finds, as preferred embodiment, when m=24 (i.e. peripheral welding wire
Lay pitch T=24K × d) time, 65 °≤α≤75 °, and the welding performance of now cable formula welding wire has
The figure of merit.
In the cable formula welding wire that this utility model provides, the diameter d of peripheral welding wire can be according to welding performance
Demand be set.As preferred embodiment, 1.5mm≤d≤2.0mm.
The cable formula welding wire that this utility model provides is described in detail below in conjunction with specific embodiment.
Embodiment 1
The structure of the cable formula welding wire that the present embodiment provides is 1+6, as depicted in figs. 1 and 2, and outer weld all around
Silk number is 6, and peripheral welding wire is solid welding wire, K=1, then T=md (m=20-25, lead angle α
=72.5 °~76.1 °).Meanwhile, the diameter d of peripheral welding wire is equal to 1.6mm, and cable formula gage of wire is about
For 5mm, then the optional scope of lay pitch T: 32~40mm, the optimal lay pitch (i.e. during m=24)=38mm.
Comparative example 1
The structure of the welding wire that this comparative example provides is 1+6, and peripheral welding wire number is 6, and peripheral welding wire is real
Cored welding wire, K=1, the diameter d of peripheral welding wire is 1.5mm, lay pitch T=17d=25.5mm.
Comparative example 2
The welding wire that this comparative example provides uses φ 5.0mm monofilament to carry out submerged-arc welding.
The welding performance of the cable formula welding wire that embodiment 1 and comparative example 1 and 2 provide is tested,
Wherein ZX5-1000+ wire feeding trolley is selected in test;A36 ship plate, a size of
400mm×150mm×14mm;Use HJ431 solder flux, and when the wire feed rate of welding is 40mm/ second,
The speed of its electric arc is 1 hertz.Welding parameter and result ask for an interview table 1.
Table 1
As can be seen from Table 1, the cable formula wire submerged arc weldering of the present embodiment and burying of comparative example 1 and 2
The deposition rate of arc-welding is about the same with the amplitude of variation of electric current, i.e. deposition rate difference is 2.5kg/h
Left and right.It is 1.44 times of monofilament submerged-arc welding, i.e. average amplification 44%.Compared to comparative example 1 and 2
Submerged-arc welding, the cable formula wire submerged arc weldering deposition every kilogram metal power consumption of the present embodiment about decreases
1.27kWh, average amount of decrease 45%.
Embodiment 2
The structure of the cable formula welding wire that the present embodiment provides is 1+7, and as shown in Figure 4, i.e. peripheral welding wire number is
7, and peripheral welding wire is solid welding wire, K=1, then T=md, (m=20-25, lead angle α=69.5 °~
73.7°).Meanwhile, a diameter of 1.85mm of peripheral welding wire, center gage of wire is 2.3mm, cable formula
Gage of wire is about 6mm, then the optional scope of the lay pitch: 37~46.25mm, the optimal lay pitch (i.e. m=24
Time)=44.4mm.And when the wire feed rate of welding is 44.4mm/ second, the speed of its electric arc is
1 hertz.
Embodiment 3
The structure of the cable formula welding wire that the present embodiment provides is 1+8, as it is shown in figure 5, peripheral welding wire number is 8,
And peripheral welding wire is solid welding wire, K=1, T=md (m=20-25, lead angle α=α=66.4 °~
71.3°).Meanwhile, during a diameter of 1.73mm of peripheral welding wire, center gage of wire is 2.54mm,
Cable formula gage of wire is about 6mm, then the optional scope of the lay pitch: 34.6~43.25mm, the optimal lay pitch is (i.e.
During m=24)=41.5mm.And when the wire feed rate of welding is 41.5mm/ second, the rotary frequency of its electric arc
Rate is 1 hertz.
Embodiment 4
The structure of the cable formula welding wire that the present embodiment provides is 1+9, and as shown in Figure 6, peripheral welding wire number is 9,
And peripheral welding wire is solid welding wire, K=1, then T=md, (m=20-25, lead angle α=63.25 °~
68.9).Meanwhile, during a diameter of 1.6mm of peripheral welding wire, center gage of wire is 2.8mm, cable formula
Gage of wire is about 6mm, the optional scope of the lay pitch: 32~40mm, the optimal lay pitch=38.4mm.And welding
Wire feed rate when being 38.4mm/ second, the speed of its electric arc is 1 hertz.
Embodiment 5
The structure of the cable formula welding wire that the present embodiment provides is 1+10, as it is shown in fig. 7, peripheral welding wire number is
10, and peripheral welding wire is solid welding wire, K=1, then T=md, (m=20-25, lead angle α=60 °~
66.4°).Meanwhile, a diameter of 1.5mm of peripheral welding wire, center gage of wire is 3mm, and cable formula is welded
Filament diameter is about 6mm, the optional scope of the lay pitch: 30~37.5mm, the optimal lay pitch=36mm.And welding
When wire feed rate is 36mm/ second, the speed of its electric arc is 1 hertz.
Embodiment 6
The structure of the cable formula welding wire that the present embodiment provides is 1+10, and peripheral welding wire number is 10, and outer weld all around
Silk is seamless flux-cored wire, K=1.2, then T=1.2md.The diameter d of peripheral welding wire is 1.5mm, twists with the fingers
Away from optional scope: 36~45mm, the optimal lay pitch=43.2mm.And the wire feed rate of welding is the 38mm/ second
Time, the speed of its electric arc is 1.1 hertz.
Comparative example 3
The structure of the cable formula welding wire that this comparative example provides is 1+10, and peripheral welding wire number is 10, and outer weld all around
Silk is seamless flux-cored wire, and the diameter d of peripheral welding wire is 1.5mm, and the lay pitch is 28mm.And welding
When wire feed rate is 38mm/ second, the speed of its electric arc is 1.1 hertz.
Embodiment 7
The structure of the cable formula welding wire that the present embodiment provides is 1+10, and peripheral welding wire number is 10, and outer weld all around
Silk is seamed cored wire, K=1.5, then T=md, and a diameter of 1.5mm of peripheral welding wire, the lay pitch can
Select scope: 45~56.25mm, the optimal lay pitch=54mm.And the wire feed rate of welding is when being 37mm/ second,
The speed of its electric arc is 1.1 hertz.
Comparative example 4
The structure of the cable formula welding wire that this comparative example provides is 1+10, and peripheral welding wire number is 10, and outer weld all around
Silk be seamed cored wire, a diameter of 1.5mm of peripheral welding wire, and the lay pitch is 38mm, and sending of welding
When silk speed is 37mm/ second, the speed of its electric arc is 1.1 hertz.
To embodiment 6 and 7 and the welding performance of cable formula welding wire that provides of comparative example 3 and 4 carry out
Test, wherein ZX5-1000+ wire feeding trolley is selected in test;A36 ship plate, a size of
400mm×150mm×14mm;Use HJ431 solder flux, and when the wire feed rate of welding is 40mm/ second,
The speed of its electric arc is 1 hertz.Welding parameter and result ask for an interview table 2.
Table 2
As can be seen from Table 2, the present embodiment 6 and 7 cable formula wire submerged arc weldering with comparative example 3 and
The deposition rate of the submerged-arc welding of 4 is about the same with the amplitude of variation of electric current.Compared to comparative example 3 and 4
Submerged-arc welding, the cable formula wire submerged arc weldering deposition every kilogram metal power consumption of the present embodiment 6 and 7 about subtracts
Few 45%.
As seen from the above-described embodiment, under the conditions of same outer diameter, with the increase of peripheral welding wire number, most preferably
The lay pitch and lead angle all reduce, and under the conditions of identical wire feed rate, the speed of electric arc increases,
Be conducive to the electric arc agitation to molten bath, thus reduce weld defect, improve welding quality and be also beneficial to increase
Add fusion penetration.Meanwhile, this utility model provide cable formula welding wire compared with monofilament, CO2Gas shield welding wire melts
Change speed the highest by 45%;Deposition rate is the highest by 35%;Electric energy efficiency is the highest by 15%;Submerged-arc welding wire melts
Speed is the highest by 40%;Deposition rate is the highest by 40%;Electric energy efficiency is the highest by 53%.
It should be noted that this utility model is also directed to: (1) described peripheral welding wire is solid welding wire,
K=1.1, d=2.0;(2) when described peripheral welding wire is seamless flux-cored wire, K≤1.1, K=1.1, d=2.0;
(3) when described peripheral welding wire is seamed cored wire, K=1.2, K=1.1, d=2.0;(4) outside described
When weld all around silk (2) is seamed cored wire, K=1.5, K=1.1, d=2.0, these four embodiment enters
Having gone welding performance test, its test result is similar to embodiment 1, does not repeats them here.
Obviously, above-described embodiment is only for clearly demonstrating example, and not to embodiment party
The restriction of formula.For those of ordinary skill in the field, the most also may be used
To make other changes in different forms.Here without also all of embodiment being given
With exhaustive.And the obvious change thus extended out or variation are created still in this utility model
Protection domain among.