CN107322192B - A kind of coating and application for no copper plating soldering wire - Google Patents
A kind of coating and application for no copper plating soldering wire Download PDFInfo
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- CN107322192B CN107322192B CN201710547395.0A CN201710547395A CN107322192B CN 107322192 B CN107322192 B CN 107322192B CN 201710547395 A CN201710547395 A CN 201710547395A CN 107322192 B CN107322192 B CN 107322192B
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- plating soldering
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/36—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
- B23K35/365—Selection of non-metallic compositions of coating materials either alone or conjoint with selection of soldering or welding materials
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Abstract
The invention proposes a kind of coating for no copper plating soldering wire and applications, belong to no copper plating soldering wire field.The coating includes following raw material components and parts by weight: 30-40 parts of emulsion acrylic resin, 5-10 parts of graphene, 10-20 parts of nano-titanium dioxide, 2-5 parts of calcium stearate, 2-3 parts of dispersing agent, 1-2 parts of wetting agent, 1-2 parts of defoaming agent, and 25-40 parts of water.Of the invention is used for the coating without copper plating soldering wire, can form one layer of coating in welding wire surface, abrasion of the existing no copper plating soldering wire to ignition tip can be greatly reduced in obtained welding wire, improve the Wire Performance in welding wire use process.The present invention can form one layer uniformly and the controllable protective film of thickness on no copper plating soldering wire surface, and welding wire surface is smooth, prevent that line sending is unsmooth, arcing sounds are hot, splashes, the generation for the problems such as stomata is more.
Description
Technical field
The present invention relates to no copper plating soldering wire fields, and in particular to a kind of coating and application for no copper plating soldering wire.
Background technique
It is current development trend that no copper plating soldering wire, which replaces copper plating soldering wire, as no copper plating soldering wire is answered on the market in recent years
With the increasingly raising of degree, the production technology of no copper plating soldering wire gradually forms that " drawing-is clear from originally more chaotic mode
The production technology mode of clean-coating ".In terms of coating, due to each producer coating formula and coating coating method not
Together, bring gas guarantor is differed greatly without copper plating soldering wire using craftsmanship, and be mainly manifested in: no copper plating soldering wire is led in use
Difference, the difference of conduction and rustless property of sparking plug serious wear degree.And domestic the leading in use without copper plating soldering wire
This is maximum using problem for sparking plug serious wear, so that its popularization encounters very big difficulty, it is external thus relatively early to have carried out without plating
The linguistic term of copperwelding rod surface covering, and encouraging success is achieved, domestic relevant enterprise is also actively developing this aspect
Work.
Technical disadvantages existing for existing no copper plating soldering wire coating mainly have following several respects:
1, without plating copper coating component it is relatively simple, function is more single: currently, domestic application without copper plating soldering wire coating
Function is more single.Such as, for partial coating based on antirust oil, emphasis is the rustless property for solving welding wire product；Partial coating
Emphasis solves greasy property in the form of powdered lubricant.These all fail the performance for considering three aspect of antirust, conduction and lubrication comprehensively
It is required that.
2, the coating method without copper plating soldering wire coating is relatively simple: existing coating method are as follows: liquid mainly to lean on sheep
The wipings such as felt or surface titration；Powdery is mainly coated with by roller or mold as stressing.This has resulted in painting thickness
The unstability of degree.
Summary of the invention
In view of the deficienciess of the prior art, the invention proposes a kind of coating for no copper plating soldering wire and application,
Have the function of conductive, lubrication, but also can be combined with traditional rust-proof coating, reduces ignition tip in use process and grind
Damage, overcomes the deficiencies in the prior art.
To achieve the above object or other purposes, the present invention is achieved by the following technical solutions: one kind is for no plating
The coating of copperwelding rod, the coating include following raw material components and parts by weight: 30-40 parts of emulsion acrylic resin, graphene
5-10 parts, 10-20 parts of nano-titanium dioxide, 2-5 parts of calcium stearate, 2-3 parts of dispersing agent, 1-2 parts of wetting agent, 1-2 parts of defoaming agent,
25-40 parts of water.Further, the antirust surface layer includes following raw material components and parts by weight: basic antirust oil 90-95 parts,
5-10 parts of lanolin magnesium soap.
Further, the emulsion acrylic resin is used using methacrylate, acrylate as primary raw material
The copolymer emulsion that emulsifier is polymerized, solid content 46-50%, pH value 7.5-9.0, viscosity are 400-800CPS (25
℃)；The glass transition temperature of acrylic resin is 12-14 DEG C in the emulsion acrylic resin.
Further, the graphene is non-oxidized graphite alkene, partial size≤10 micron, specific surface area 120-220m2/ g, powder
Last conductivity > 4000S/m.
The nano-titanium dioxide is rutile type nano titanic oxide, partial size 5-10nm, specific surface area 30-
100m2/g。
The dispersing agent is selected from polyethylene glycol type, polyol type dispersing agent.The optional autohemagglutination second two of polyethylene glycol type dispersing agent
Alcohol 200 or polyethylene glycol 400.
The wetting agent is selected from polyether-modified polysiloxane type wetting agent；Polyether-modified polysiloxane type wetting
Agent can be selected from GOLDEN EM-193.
The defoaming agent is selected from polysiloxane type defoaming agent；Polysiloxane type defoaming agent is selected from Y-685, Y-625, Y-629.
The present invention further additionally provides a kind of side that above-mentioned coating is used for no copper plating soldering wire surface formation primer coating
Method, comprising the following steps:
(1) preparation of paint coatings: by emulsion acrylic resin and moisture at two parts, by the acrylic acid tree of first part
Fat liquor and water are uniformly mixed, and dispersing agent, wetting agent and defoaming agent is added and adds graphene, nano-silica after mixing evenly
Change titanium and calcium stearate, stirring, and grinding distribution forms mixture；
The emulsion acrylic resin of second part and water are sequentially added in above-mentioned mixture, stirs evenly and is applied up to bottom
Layer；
(2) coating is coated with: will pass through surface cleaning without copper plating soldering wire, by step (1) in the way of dies compress coating
In paint coatings be coated to welding wire surface.
Further, the emulsion acrylic resin weight of first part accounts for emulsion acrylic resin total amount in step (1)
70%, the weight of the water of first part accounts for the 50% of water inventory.By emulsion acrylic resin and moisture at two parts in the present invention
It is successively added, after emulsion acrylic resin and water and other components can be made to be uniformly dispersed, reaches after satisfactory particle again
Remaining emulsion acrylic resin and water is added, avoids emulsion acrylic resin and when water is added at one time caused grinding
Between it is long, grinding it is more difficult, uneven the problems such as.
Further, mixing speed is not less than 20m/s in step (1).
Further, for mixture discrete particles less than 5 μm, holding standing 24 hours are not stratified in step (1), do not flocculate,
The viscosity of the coating for using viscosity of the coating cup to test was the delivery time of coating less than 30 seconds.The grinding distribution time of mixture is general
Be 3 hours, specifically with the discrete particles size of mixture depending on.
Further, dies compress coating is will first to pass through coating in mold box without copper plating soldering wire after surface cleaning
Coating solution by paint coatings solution coating to welding wire surface, then passes through extruding one layer of uniform surface covering of formation of mold,
Coating layer thickness can by welding wire by the variation of diameter before and after mold (into without copper plating soldering wire diameter and passing through mould before mold
Controlling without copper plating soldering wire diameter difference in 0.02-0.05mm after tool) it controls；In the present invention, no copper plating soldering wire surface per ton is applied
The Weight control of the paint coatings of cloth is in 80-120g.In dies compress coating procedure, mould is passed through in the primer coating of welding wire coating
High temperature is generated when tool, can directly be evaporated by moisture after mold, therefore do not have residual moisture.
Further, the present invention provides a kind of using above method surface obtained with primer coating without copper facing
Welding wire.
Further, with primer coating without copper plating soldering wire, surface further includes having antirust surface layer on surface of the present invention,
The antirust surface layer includes following raw material components and parts by weight: basic antirust oil 90-95 parts, 5-10 parts of lanolin magnesium soap.
Further, the kinematic viscosity of the basic antirust oil is 13.5-16.5mm2/ s (40 DEG C), rust-proof life are 36
Month, it is purchased from Wuxi Yi Geer lubrication Science and Technology Co., Ltd., needs when use that basic antirust oil is first heated to 110-130 DEG C,
And be dehydrated 1 hour at this temperature, make the water content of basic antirust oil less than 0.03%.
The lanolin magnesium soap be that matter fraction is sulfonated in lanolin, ethanol water extraction products therefrom processing is produced and
, it can be commercially available by general commercial means.
Surface has the preparation method without copper plating soldering wire of primer coating and antirust surface, including following step in the present invention
It is rapid:
(a) preparation of antirust surface coating: basic antirust oil is mixed with lanolin magnesium soap, and stirring keeps whole materials mixed
It is even, obtain antirust surface coating；
(b) coating of antirust surface covering: the antirust surface coating in step (a) is applied using high-pressure electrostatic coating method
Cloth is to no copper plating soldering wire surface.
Further, basic antirust oil is heated to 70 DEG C in step (a), adds lanolin magnesium soap, and stir 0.5-
1.5 hour.
Further, in step (a), use the viscosity of the coating of viscosity of the coating cup test antirust surface coating for coating
Delivery time was less than 40 seconds.
Antirust surface coating is coated using the high-pressure electrostatic coating coating method of electrostatic absorption principle, high-pressure electrostatic
Coating is carried out using Electrostatic greasing equipment, and oiling device is equipped with independent high-pressure electrostatic generating system, can generate 8 to 10 ten thousand volts
Electrostatic potential, the static electric field to form 5 to 6 ten thousand volts of electrostatic potentials is stopped up in the oiling of oiler using point discharge principle.When
Fine elaioleucite particle is formed after air atomizing by being atomized and taking negative electricity again when corona, by the suction of positively charged welding wire
Draw, the fine elaioleucite with negative electricity be attracted to high-speed motion without on copper plating soldering wire, forming extremely thin and uniform Rust Preventing Oil Film.
The Weight control of the antirust surface coating of no copper plating soldering wire surface coating per ton is in 50-80g.
A kind of coated coating for no copper plating soldering wire surface provided by the present invention, in coating raw material containing graphene at
Point, paint coatings can be made to obtain excellent conduction, lubricant effect；Containing nanometer titanium dioxide titanium component, can make to be coated with the coating
The performance for obtaining excellent reduction when in use without copper plating soldering wire and splashing of coating；Containing calcium stearate, there are paint coatings
Good lubricity.
When coated coating of the invention is for no copper plating soldering wire surface, it can continue to be coated with antirust table on no copper plating soldering wire surface
Layer, containing basic antirust oil and lanolin magnesium soap in antirust surface layer, it can make no copper plating soldering wire that there is good rustless property.And it is anti-
Rust surface layer and paint coatings have preferable associativity, do not influence conductive, lubrication and rustless property.
It is coated in the present invention using dies compress coating and electrostatic absorption principle, bottom coating coating is passed through into mold
Compression coating is formed equal by antirust surface coating through the coating ultra micro elaioleucite absorption of atomization on the wire of high-speed motion
Even and thin oil film, and can be according to requiring the control for being coated thickness.
To sum up, of the invention to be used for the coating without copper plating soldering wire, one layer of coating can be formed in welding wire surface, and with antirust table
Layer associativity is good, can be realized no copper plating soldering wire surface covering in the performance requirement of three aspect of antirust, conduction and lubrication.It is obtained
Welding wire can be greatly reduced abrasion of the existing no copper plating soldering wire to ignition tip, improve the Wire Performance in welding wire use process.
The present invention can form one layer uniformly and the controllable protective film of thickness (0.02-0.05mm) on no copper plating soldering wire surface, and weld
Silk table face is smooth, prevents that line sending is unsmooth, arcing sounds are hot, splashes, the generation for the problems such as stomata is more.
Specific embodiment
The present invention is described by specific embodiment below.In the following description, numerous specific details are set forth so as to
Person of ordinary skill in the field is set to be best understood from the present invention.But for the technology people in technical field
It is evident that of the invention realizing can be without some in these details for member.However, it should be understood that this
Invention is not limited to introduced specific embodiment.On the contrary, it may be considered that implement this hair with any combination of following feature
It is bright, regardless of whether they are related to different embodiments.Therefore, the following examples and advantage are used for illustrative purposes only, without answering
Limitations on the claims are counted as, unless clearly proposing in the claims.
The kinematic viscosity of basis antirust oil involved in the embodiment of the present invention is 13.5-16.5mm2/ s (40 DEG C), antirust
Phase is 36 months, and 110-130 DEG C is first to heat to before use, and is dehydrated 1 hour at this temperature, and the water content of basic antirust oil is made
Less than 0.03%.Emulsion acrylic resin solid content is 46-50%, and pH value 7.5-9.0, viscosity is 400-800CPS (25
DEG C), 12-14 DEG C of glass transition temperature.The graphene is non-oxidized graphite alkene, partial size≤10 micron, specific surface area 120-
220m2/ g, powder conductivity rate > 4000S/m.The nano-titanium dioxide is rutile type nano titanic oxide, partial size 5-
10nm, specific surface area 30-100m2/g。
The proportion of above-mentioned each raw material is different, may be constructed different embodiments, specific as follows:
Embodiment 1
A kind of surface have paint coatings without copper plating soldering wire:
The raw material components and parts by weight of the paint coatings are as follows: 40 parts of emulsion acrylic resin, graphene 10 part, nanometer
19 parts of titanium dioxide, 2 parts of calcium stearate, 2 parts of polyethylene glycol 200 dispersing agent, polyether-modified polysiloxane type wetting agent 1
Part, 1 part of Y-685 polysiloxane type defoaming agent, 25 parts of water.
The preparation method comprises the following steps: the preparation of (1) primer coating: by the 70% of emulsion acrylic resin total amount and water inventory 50%
It is uniformly mixed, dispersing agent, wetting agent and defoaming agent is added and adds graphene, nano-titanium dioxide and tristearin after mixing evenly
Sour calcium, stir and 3 hours is formationed mixtures of grinding distribution, the discrete particles of mixture less than 5 μm, keep standing 24 hours regardless of
Layer, does not flocculate, and the viscosity of the coating for using viscosity of the coating cup to test was the delivery time of coating less than 30 seconds；
Remaining emulsion acrylic resin and water are sequentially added in above-mentioned mixture, stirred evenly up to primer coating；
(2) coating is coated with: will pass through surface cleaning without copper plating soldering wire, by step (1) in the way of dies compress coating
In paint coatings be coated to welding wire surface.
There is the uniform coating thickness without copper plating soldering wire of paint coatings on gained surface, with a thickness of 0.02mm (i.e. without plating brazing
Silk diameter and coating after without copper plating soldering wire diameter difference).And the coating of welding wire surface coating is uniformly, surface paper is wiped without obvious oil
Layer.And the problems such as welding wire surface is smooth, and when use not will cause line sending winding.And welding wire electric conductivity is good, welds in welding
Electric current and voltage fluctuation very little, welding arc stablility, no bulky grain, which splashes, to be generated, and spatter is small, and welding wire end is not after welding
It will form big molten drop.Welding tip abrasion it is small, with only antirust or have both antirust and conduction without copper plating soldering wire compared with, weldering
The abrasion for connecing rear ignition tip aperture is small, and the case where ignition tip abrasion ovalisation does not occur.
Embodiment 2
A kind of surface be coated with antirust surface layer and coating bottom without copper plating soldering wire:
Coating bottom raw material and parts by weight: 30 parts of emulsion acrylic resin, 10 parts of graphene, 15 parts of nano-titanium dioxide,
2 parts of calcium stearate, 2 parts of polyethylene glycol 200 dispersing agent, polyether-modified 1 part of polysiloxane type wetting agent, the poly- silicon oxygen of Y-685
1 part of alkane type defoaming agent, 39 parts of water.
Antirust top layer raw material and parts by weight: 95 parts of basic antirust oil, 5 parts of lanolin magnesium soap.
The preparation method comprises the following steps:
(1) preparation of primer coating: the 50% of the 70% of emulsion acrylic resin total amount and water inventory is uniformly mixed, is added
Enter dispersing agent, wetting agent and defoaming agent, after mixing evenly, adds graphene, nano-titanium dioxide and calcium stearate, stirring is simultaneously
3 hours formation mixtures of grinding distribution, for the discrete particles of mixture less than 5 μm, holding standing 24 hours are not stratified, do not flocculate,
The viscosity of the coating for using viscosity of the coating cup to test was the delivery time of coating less than 30 seconds；
Remaining emulsion acrylic resin and water are sequentially added in above-mentioned mixture, stirred evenly up to primer coating；
(2) primer coating is coated with: will pass through surface cleaning without copper plating soldering wire, by step in the way of dies compress coating
(1) primer coating in is coated to welding wire surface；
(3) preparation of antirust surface coating: will be heated to 70 DEG C under the stirring of basic antirust oil, add lanolin magnesium soap,
Stirring 1 hour makes whole materials mix the viscosity of the coating for using viscosity of the coating cup to test to get antirust surface coating as coating
Delivery time less than 40 seconds；
(4) antirust surface coating in step (3) is then subjected to high-pressure electrostatic coating, in step (2) gained without plating brazing
Silk table face forms the coating of one layer of even compact.
The present embodiment without copper plating soldering wire uniform coating thickness, with a thickness of 0.04mm (i.e. without copper plating soldering wire diameter and coating
Afterwards without copper plating soldering wire diameter difference).And the coating of welding wire surface coating is uniformly, surface is wiped with paper without obvious oil reservoir.
The problems such as welding wire surface is smooth, and when use not will cause line sending winding.
It without the antirust surface layer on copper plating soldering wire surface and primer coating, is firmly combined for two layers, when use is not easy to peel off.
9 days can be placed not at a temperature of the relative humidity of 80-90%, 30-35 DEG C without copper plating soldering wire obtained by the present embodiment
There is rust spot.And welding wire electric conductivity is good, welding current and voltage fluctuation very little, welding arc stablility, without big in welding
Grain, which splashes, to be generated, and spatter is small, and welding wire end will not form big molten drop after welding.Welding tip abrasion it is small, with only
Antirust has both comparing without copper plating soldering wire for antirust and conduction, and the abrasion in ignition tip aperture is small after welding, and conductive without occurring
Mouth wears the case where ovalisation.
Embodiment 3
A kind of surface be coated with antirust surface layer and coating bottom without copper plating soldering wire:
Bottom raw material and parts by weight: 40 parts of emulsion acrylic resin, 7 parts of graphene, 10 parts of nano-titanium dioxide, stearic acid
4 parts of calcium, 3 parts of polyol type dispersing agent, 2 parts of the polyether-modified polysiloxane type wetting agent of GOLDEN EM-193, Y-625 are poly-
2 parts of silicone-type defoaming agent, 32 parts of water.
Antirust top layer raw material and parts by weight: 93 parts of basic antirust oil, 7 parts of lanolin magnesium soap.
The preparation method comprises the following steps:
(1) preparation of primer coating: the 50% of the 70% of emulsion acrylic resin total amount and water inventory is uniformly mixed, is added
Enter dispersing agent, wetting agent and defoaming agent, after mixing evenly, adds graphene, nano-titanium dioxide and calcium stearate, stirring is simultaneously
3 hours formation mixtures of grinding distribution, for the discrete particles of mixture less than 5 μm, holding standing 24 hours are not stratified, do not flocculate,
The viscosity of the coating for using viscosity of the coating cup to test was the delivery time of coating less than 30 seconds；
Remaining emulsion acrylic resin and water are sequentially added in above-mentioned mixture, stirred evenly up to primer coating；
(2) primer coating is coated with: will pass through surface cleaning without copper plating soldering wire, by step in the way of dies compress coating
(1) primer coating in is coated to welding wire surface；
(3) preparation of antirust surface coating: will be heated to 70 DEG C under the stirring of basic antirust oil, add lanolin magnesium soap,
Stirring 1 hour makes whole materials mix the viscosity of the coating for using viscosity of the coating cup to test to get antirust surface coating as coating
Delivery time less than 40 seconds；
(4) antirust surface coating in step (3) is then subjected to high-pressure electrostatic coating, in step (2) gained without plating brazing
Silk table face forms the coating of one layer of even compact.
The present embodiment without copper plating soldering wire uniform coating thickness, with a thickness of 0.03mm (i.e. without copper plating soldering wire diameter and coating
Afterwards without copper plating soldering wire diameter difference).And the coating of welding wire surface coating is uniformly, surface is wiped with paper without obvious oil reservoir.Welding wire surface
It is smooth, the problems such as when use not will cause line sending winding.Without the antirust surface layer on copper plating soldering wire surface and primer coating, two layers of combination
Securely, it is not easy to peel off when use.
The Coating of the present embodiment without copper plating soldering wire at a temperature of the relative humidity of 80-90%, 30-35 DEG C, can be with
It places 9 days and rust spot does not occur.And welding wire electric conductivity is good, in welding, welding current and voltage fluctuation very little, welding arc are steady
Fixed, no bulky grain, which splashes, to be generated, and spatter is small, and welding wire end will not form big molten drop after welding.Welding tip abrasion
It is small, with only antirust or have both antirust and conduction without copper plating soldering wire compared with, the abrasion in ignition tip aperture is small after welding, and does not have
There is the case where ignition tip abrasion ovalisation.
Embodiment 4
A kind of surface be coated with antirust surface layer and coating bottom without copper plating soldering wire:
Bottom raw material and parts by weight: 35 parts of emulsion acrylic resin, 5 parts of graphene, 20 parts of nano-titanium dioxide, stearic acid
5 parts of calcium, 2.5 parts of polyethylene glycol 400 dispersing agent, polyether-modified 1.5 parts of polysiloxane type wetting agent, Y-629 polysiloxanes
1.5 parts of type defoaming agent, 29.5 parts of water.
Antirust top layer raw material and parts by weight: 90 parts of basic antirust oil, 10 parts of lanolin magnesium soap.
The preparation method comprises the following steps: with embodiment 1.
The present embodiment without copper plating soldering wire uniform coating thickness, with a thickness of 0.05mm (i.e. without copper plating soldering wire diameter and coating
Afterwards without copper plating soldering wire diameter difference).And the coating of welding wire surface coating is uniformly, surface is wiped with paper without obvious oil reservoir.Welding wire surface
It is smooth, the problems such as when use not will cause line sending winding.Without the antirust surface layer on copper plating soldering wire surface and primer coating, two layers of combination
Securely, it is not easy to peel off when use.
The Coating of the present embodiment without copper plating soldering wire at a temperature of the relative humidity of 80-90%, 30-35 DEG C, can be with
It places 9 days and rust spot does not occur.And welding wire electric conductivity is good, in welding, welding current and voltage fluctuation very little, welding arc are steady
Fixed, no bulky grain, which splashes, to be generated, and spatter is small, and welding wire end will not form big molten drop after welding.Welding tip abrasion
It is small, with only antirust or have both antirust and conduction without copper plating soldering wire compared with, the abrasion in ignition tip aperture is small after welding, and does not have
There is the case where ignition tip abrasion ovalisation.
Comparative example 1
A kind of surface be coated with antirust surface layer without copper plating soldering wire, antirust surface layer includes basic 95 parts of antirust oil, lanolin magnesium
5 parts of soap.
When antirust surface layer is applied to no copper plating soldering wire surface, method is the same as step (3) in embodiment 2 and step (4).It is made
With rust-proof coating without copper plating soldering wire at a temperature of the relative humidity of 80-90%, 30-35 DEG C, can place 7 days not go out
Existing rust spot.
By obtained by this comparative example with rust-proof coating without prepared by copper plating soldering wire and embodiment 2 without copper plating soldering wire
It is compared, the welding wire that embodiment 2 produces welding current and voltage fluctuation very little, welding arc stablility, without big in welding
Grain, which splashes, to be generated, and spatter is small, and welding wire end will not form big molten drop after welding, does not occur ignition tip abrasion after welding
The case where ovalisation.
Comparative example 2
What a kind of surface was coated with antirust surface layer and conductive layer is without copper plating soldering wire, including antirust coat and conductive layer, antirust coat
95 parts of basic antirust oil, 5 parts of lanolin magnesium soap；Conductive layer are as follows: graphene 30,5 parts of dispersing agent, 6 parts of wetting agent, defoaming agent 10
Part, 49 parts of water.
When antirust coat and conductive layer are applied to no copper plating soldering wire surface, preparation method is the same as embodiment 2.
Obtained has antirust, the relative humidity without copper plating soldering wire in 80-90%, the 30-35 DEG C of temperature of conductive coating
Under, it can place 7 days and rust spot do not occur.Easily occurs antirust surface layer peeling in use process.
Compared with comparative example 2 is without copper plating soldering wire, welding wire surface made from embodiment 2 is more smooth, and when use not will cause
The problems such as line sending is wound.Ignition tip abrasion loss is small, and the situation of ellipse will not occur in ignition tip abrasion.It and is not in coating
Peeling phenomenon.
Comparative example 3
A kind of cated no copper plating soldering wire of surface painting:
Bottom raw material and parts by weight: 30 parts of emulsion acrylic resin, 10 parts of graphene, 15 parts of nano-titanium dioxide, tristearin
2 parts of sour calcium, 2 parts of dispersing agent, 1 part of wetting agent, 1 part of defoaming agent, 39 parts of water.
Antirust top layer raw material and parts by weight: 95 parts of basic antirust oil, 5 parts of lanolin magnesium soap.
Preparation method is with embodiment 2, and as different from Example 2, coating method is wiped using wool felt or surface titration
Coating method.
Without copper plating soldering wire, that there are coating layer thicknesses is unstable, sends out without copper plating soldering wire surface color as made from the coating method
Dark problem, is primarily due to temperature, the variation of rate of titration will cause the variation of coating amount, simultaneously because welding wire with
Wool felt when wiping can the elasticity variation of contact due to welding wire with wool felt cause the variation of oil coating thickness.Therefore, originally
The coating method of embodiment no copper plating soldering wire produced, surface will appear the part having after being wiped with paper have apparent oil, and
Some part oil masses are seldom.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should be covered by the claims of the present invention.
Claims (10)
1. a kind of coating for no copper plating soldering wire, which is characterized in that the coating includes following raw material components and parts by weight:
30-40 parts of emulsion acrylic resin, 5-10 parts of graphene, 10-20 parts of nano-titanium dioxide, 2-5 parts of calcium stearate, dispersing agent 2-
3 parts, 1-2 parts of wetting agent, 1-2 parts of defoaming agent, 25-40 parts of water.
2. coating according to claim 1, which is characterized in that the emulsion acrylic resin viscosity is 400-800CPS,
Solid content is 46-50%.
3. coating according to claim 1, which is characterized in that graphene partial size≤10 μm.
4. a kind of be used for any one of the claim 1-3 coating method that no copper plating soldering wire surface forms primer coating,
It is characterized in that, comprising the following steps:
(1) preparation of primer coating: by emulsion acrylic resin and moisture at two parts, by the acrylic resin cream of first part
Liquid and water are uniformly mixed, and dispersing agent, wetting agent and defoaming agent is added and adds graphene, nano-titanium dioxide after mixing evenly
And calcium stearate, stirring, and grinding distribution forms mixture；
The emulsion acrylic resin of second part and water are sequentially added in above-mentioned mixture, stirred evenly up to primer coating；
(2) coating is coated with: surface cleaning will be passed through without copper plating soldering wire, it will be in step (1) in the way of dies compress coating
Primer coating is coated to welding wire surface.
5. according to the method described in claim 4, it is characterized in that, what is also included the following features is one or more:
The emulsion acrylic resin weight of first part accounts for the 70% of emulsion acrylic resin total amount in step (1), first part
The weight of water account for the 50% of water inventory；
The discrete particles of mixture are less than 5 μm in step (1)；
In step (2) dies compress coating method, paint coatings weight needed for no copper plating soldering wire per ton is 80-120g.
6. a kind of surface obtained using any one of claim 4-5 the method is with primer coating without copper plating soldering wire.
7. a kind of no copper plating soldering wire as claimed in claim 6, which is characterized in that no copper plating soldering wire surface further includes having antirust table
Layer, the antirust surface layer includes following raw material components and parts by weight: basic antirust oil 90-95 parts, 5-10 parts of lanolin magnesium soap.
8. no copper plating soldering wire according to claim 7, which is characterized in that it is described basis antirust oil kinematic viscosity be
13.5-16.5mm2/s。
9. a kind of method for preparing any one of claim 7-8 no copper plating soldering wire, which comprises the following steps:
(a) preparation of antirust surface coating: basic antirust oil is mixed with lanolin magnesium soap, and stirring mixes whole materials, is obtained
Antirust surface coating；
(b) coating of antirust surface covering: the antirust surface coating in step (a) is applied to using high-pressure electrostatic coating method
Without copper plating soldering wire surface.
10. a kind of method as claimed in claim 9 is obtained without copper plating soldering wire.
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| CN108941979B (en) * | 2018-09-05 | 2020-11-27 | 天津市永昌焊丝有限公司 | Copper-plating-free ER50-6 gas shielded solid welding wire |
| CN111015023B (en) * | 2019-12-06 | 2021-08-10 | 上海工程技术大学 | Solid welding wire without copper plating and preparation method thereof |
| CN111644778B (en) * | 2020-05-26 | 2022-04-19 | 武汉铁锚焊接材料股份有限公司 | Surface coating material for copper-free welding wire and preparation method and application thereof |
| CN111958146B (en) * | 2020-08-04 | 2022-01-14 | 北京工业大学 | Copper-plating-free welding wire containing nano ionic liquid lubricating coating and preparation method thereof |
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