CN107186389A - A kind of wire of built-in reducing agent and preparation method thereof, application - Google Patents
A kind of wire of built-in reducing agent and preparation method thereof, application Download PDFInfo
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- CN107186389A CN107186389A CN201710306813.7A CN201710306813A CN107186389A CN 107186389 A CN107186389 A CN 107186389A CN 201710306813 A CN201710306813 A CN 201710306813A CN 107186389 A CN107186389 A CN 107186389A
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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
- B23K35/3612—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 with organic compounds as principal constituents
-
- 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
- B23K35/3612—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 with organic compounds as principal constituents
- B23K35/3615—N-compounds
-
- 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
- B23K35/3612—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 with organic compounds as principal constituents
- B23K35/3618—Carboxylic acids or salts
-
- 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
- B23K35/40—Making wire or rods for soldering or welding
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Nonmetallic Welding Materials (AREA)
Abstract
To overcome existing THT through holes welding solder used to be easily deteriorated in molten condition wetability, mobility, Surface Oxygen and matrix oxygen and metal impurities are uncontrollable, the problem of metal impurities easily surpass and solder is added separately increase operational sequence with reducing agent, the invention provides a kind of wire of built-in reducing agent, including wire body and anti-oxidation reducing agent, the wire body interior is provided with hollow cavity, the anti-oxidation reducing agent is in paste and is filled in the hollow cavity, and the anti-oxidation reducing agent includes surfactant, reducing agent and thickening agent.Meanwhile, the invention also discloses the preparation method of above-mentioned wire.The wire that the present invention is provided can control the Surface Oxygen and matrix oxygen and metal impurities of fusion welding, strengthen the wetability and mobility of fusion welding, it is to avoid metal is aoxidized in melting, reduce the consumption of anti-oxidation reducing agent and reduce operational sequence.
Description
Technical field
The invention belongs to molten metal oxidation resistance reduction technique field, and in particular to a kind of wire of built-in reducing agent and
Its preparation method, application.
Background technology
In industrial production, it can often be related to a kind of metal or alloy of melting, make what it was combined or adhered to another metal
Technique.It can be aoxidized because most metals are contacted with oxygen, it is the most common example of oxidation that such as iron, which gets rusty,.In high temperature environments,
Especially under melting state, the situation of metal (or alloy) oxidation more acutely can form one layer of oxide quickly, and more
It is poly- more.
In the welding procedure that PCBA is manufactured, THT through holes weld used tin alloy solder must be in advance in solder furnace
It could be welded after melting, oxide on surface is easily formed on fusion welding surface, and solder in the molten state must be ceaselessly
Flow circuit, this aspect can aggravate oxidation rate, on the other hand mean that the oxide and a small amount of oxygen on top layer can be by bands
To below liquid level, i.e. liquid internal.So aoxidizing internally can equally occur, so as to form Surface Oxygen on fusion welding surface.
So oxide will carry the floating upper liquid level of good tin soldering alloys secretly, form scum silica frost.Because scum silica frost is ceaselessly produced, emersion is made
Accumulate more and more into scum silica frost, be stacked layer by layer, increasingly thicker, the mobility of fusion welding starts notable change with wetability quickly
Difference, or even produce excessive, pollution danger again.Produced scum silica frost can not normally participate in the production process of fusion, can only be constantly
Salvage and, otherwise processed.Because salvaging after scum silica frost, liquid level not enough, or even produces consumption not enough, can only ceaselessly add
The new tin soldering alloys raw material of supplement.
To avoid the oxidation for melting tin soldering alloys, existing antioxidation processing technology mainly has reducing agent reducing process, reduction
Machine facture, nitrogen charging insulation blocking method etc..Wherein increase reducing agent carries out reduction antioxidation method using relatively broad, commonly uses
Reducing agent have reduced powder, reducing metal and liquid reduction material etc..
Wherein, easily dispersed due to reducing agent morphology issues by the way of reduced powder and reducing metal, it is inconvenient for use.
There are clear stipulaties in IPC-9735CN standards using the method for liquid reduction material.Its operation principle is, in liquid
Active material is added in state liquid, molten metal liquid level is poured into when using, through being sufficiently stirred for, the table of molten metal liquid level is spread in
Face, forms diaphragm, and continues occur reduction.It is limited in that it is following some：
A：Diffusion is not rapid enough, must arduously stir, and the liquid reduction material for having surfactant even if existing addition is also needed
Certain time is wanted to form diffusion on the surface of molten metal liquid level, and before liquid reduction material is added, molten metal is
There is part to be oxidized, it is necessary to which consuming more liquid reduction material enters line replacement.
B：Reducing substances is liquid, is unfavorable for storage, and be required for again when carrying out the reduction of molten metal liquid level every time
Prepare.
C：When liquid reduction material is poured into, the splashing of molten metal or sticky gluey reducing substances are easily caused
Splashing, and pour into the speed of liquid reduction material there is certain limitation, can cause substance splash because of the temperature difference if too fast,
The further diffusion velocity for limiting liquid reduction material.
The content of the invention
For asking that the reducing agent addition manner presence diffusion relatively slow, molten metal or reducing agent of existing molten metal splash
Topic, the invention provides a kind of wire of built-in reducing agent and preparation method thereof, application.
The technical scheme that present invention solution above-mentioned technical problem is used is as follows：
A kind of wire of built-in reducing agent, including wire body and anti-oxidation reducing agent, the wire sheet are provided
Body is internally provided with hollow cavity, and the anti-oxidation reducing agent is in paste and is filled in the hollow cavity, described anti-oxidant
Reducing agent includes surfactant, reducing agent and thickening agent.
Alternatively, the wire body is tin metal or tin alloy.
Alternatively, the anti-oxidation reducing agent includes following components by weight percent：
0.05~3 part of surfactant, 70~95 parts of reducing agent, 5~30 parts of thickening agent.
Alternatively, the surfactant include NPE and its compound or derivative, Tween-80 and
One or more in its compound or derivative.
Alternatively, the reducing agent includes malic acid, citric acid, stearic acid, phytic acid, cyclohexylamine hydrobromide, diphenylguanidine
One or more in hydrobromate, organic amine.
Alternatively, the thickening agent includes calcium grease, soda grease, aluminium base fat, lithium saponify, bentonite, silica gel, polytetrafluoroethyl-ne
One or more in alkene, polyureas, polyethylene, polypropylene, polyamide, polyimides, ceresine and paraffin.
Alternatively, the anti-oxidation reducing agent also includes the one or more in phosphoric acid, water and essence.
Alternatively, the anti-oxidation reducing agent includes following components by weight percent：
0.05~3 part of surfactant, 70~95 parts of reducing agent, 5~30 parts of thickening agent, 0~5 part of phosphoric acid, water 0~20
Part, 0~3 part of essence.
Alternatively, the weight ratio of wire body and anti-oxidation reducing agent is 10~50 in the wire:1~3.
Alternatively, a diameter of 2~10mm of the wire, the 1/ of a diameter of wire diameter of hollow cavity
6~1/3.
The preparation method of wire as described above is provided, comprised the following steps：
Weigh the anti-oxidation reducing agent that surfactant, reducing agent and thickening agent be mixed to get paste；
Metal bar is obtained, metal bar is extruded into by the wire with hollow cavity by extrusion die, in extrusion
Meanwhile, in the hollow cavity that the anti-oxidation reducing agent is packed into the wire.
Application of the wire as described above in molten metal oxidation resistance processing.
The wire of the built-in reducing agent provided according to the present invention, is made paste, and be filled with by anti-oxidation reducing agent
In wire body, so that wire and anti-oxidation reducing agent formation integrative-structure, are conducive to carrying out the wire
Storage and transfer, because the wire for having outside is wrapped up, also can avoid internal anti-oxidation reducing agent from being connect with extraneous air
Touch, it is to avoid aoxidized by extraneous air, be conducive to the stability of the anti-oxidation reducing agent inside keeping, forming one kind can long term storage
Anti-oxidation reducing agent form.
On the other hand, the wire that provides of the present invention due to by anti-oxidation reducing agent and wire body is integrated sets
Put, discharge the anti-oxidation reducing agent after the melting of wire body, wire is put into metal melting furnaces, i.e., simultaneously by antioxygen
Change reducing agent and metal input, the diffusion velocity for being substantially not present the molten metal surface that existing anti-oxidant reduzate is present is asked
Topic, in metal melting, the anti-oxidation reducing agent is protected to molten metal, and rises to molten metal bath in face of molten
Melt metal to be protected, it is to avoid metal is aoxidized in melt stage, so that the amount of anti-oxidation reducing agent needed for reducing, reduction
Cost.The wire of the integral structure can be prevented effectively from the splash phenomena occurred when putting into anti-oxidation reducing agent simultaneously.
Brief description of the drawings
Fig. 1 is the structural representation for the wire that one embodiment of the invention is provided.
Reference in Figure of description is as follows：
1st, wire body；2nd, anti-oxidation reducing agent.
Embodiment
In order that technical problem solved by the invention, technical scheme and beneficial effect are more clearly understood, below in conjunction with
Drawings and Examples, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used
To explain the present invention, it is not intended to limit the present invention.
Embodiment 1
Shown in Figure 1, one embodiment of the invention provides a kind of wire of built-in reducing agent, including wire sheet
Body 1 and anti-oxidation reducing agent 2, the wire body 1 are internally provided with hollow cavity, and the anti-oxidation reducing agent 2 is in paste
And be filled in the hollow cavity, the anti-oxidation reducing agent 2 includes surfactant, reducing agent and thickening agent.
The anti-oxidant of anti-oxidation reducing agent, reduction principle are as follows in the present embodiment：
1st, oxygen is separated, so as to reduce amount of oxidation
After in wire input metal melting furnaces, the melting of wire body, its internal anti-oxidation reducing agent release,
Because the density of anti-oxidation reducing agent is less than the density of point molten metal, anti-oxidation reducing agent rises and is paved with whole molten metal
Liquid level, forms layer protecting film, contact of the cut-off molten metal with oxygen, so as to reduce metal amount of oxidation.
2nd, disperse froth structure, restore useful metal
After anti-oxidation reducing agent is spread in molten metal liquid level, anti-oxidation reducing agent can be impregnated with scum silica frost gap, played
Froth structure is spread, reduces its structural tension, reducing agent therein can react with the shruff of oxidation so that scum silica frost is rapid
Scattered, never conformation of rules quickly becomes scattered thick shape liquid, and useful metal is that reduction is flow back into liquid bath at once, continues to join
With effective operation technique.
3rd, reduce molten metal liquid level tension force, improve and combine attachment quality
Because the active component (surfactant) in anti-oxidation reducing agent can change molten metal liquid level tension force, so as to carry
Mobility, wetability and the binding ability of high molten metal.
In the present embodiment, paste is made in anti-oxidation reducing agent, and be filled with wire body, so that
Wire and anti-oxidation reducing agent formation integrative-structure, are conducive to that the wire is stored and shifted, due to there is outside
Wire is wrapped up, and also internal anti-oxidation reducing agent can be avoided to be contacted with extraneous air, it is to avoid to be aoxidized by extraneous air, had
Beneficial to the stability for keeping internal anti-oxidation reducing agent, formation it is a kind of can long term storage anti-oxidation reducing agent form.
On the other hand, the wire that provides of the present invention due to by anti-oxidation reducing agent and wire body is integrated sets
Put, the anti-oxidation reducing agent is discharged after the melting of wire body, wire is put into metal melting furnaces is while will be anti-
Reductant-oxidant and metal input, the diffusion velocity for being substantially not present the molten metal surface that existing anti-oxidant reduzate is present are asked
Topic, in metal melting, the anti-oxidation reducing agent is protected to molten metal, and rises to molten metal bath in face of molten
Melt metal to be protected, it is to avoid metal is aoxidized in melt stage, so that the amount of anti-oxidation reducing agent needed for reducing, is compared
The mode that existing all kinds of first addition metal meltings are reduced again, greatly reduces cost.While the metal of the integral structure
Silk can be prevented effectively from the splash phenomena occurred when putting into anti-oxidation reducing agent.
In the present embodiment, the wire body is tin metal or tin alloy.
The tin alloy can be that tin combines formation with the one or more in bismuth, antimony, chromium, copper, silver, indium.
The wire provided according to the present embodiment, it is preferred that the anti-oxidation reducing agent includes following components by weight percent：
0.05~3 part of surfactant, 70~95 parts of reducing agent, 5~30 parts of thickening agent.
Wherein, surfactant can produce parent/thin bipartite molecules when point molten metal is contacted with anti-oxidation reducing agent
Key, reduces molten metal surface tension force, while promote anti-oxidant reduction liquid quickly to spread automatically, and other existing products then must
Applied mechanical power (stirring) etc. can just be paved with whole liquid level；So using anti-oxidation reducing agent of the present invention can rapidly " intelligence " to
Uncovered area spreads and flowed, and is paved with whole molten metal liquid level；Meanwhile, persistently risen because of product to float on molten liquid surface
Effect, so the amount added does not require very accurate, so also allows for operation.
In the present embodiment, the surfactant includes NPE and its compound or derivative, told
One or more in temperature -80 and its compound or derivative.
Wherein, reducing agent has certain reproducibility, is reacted for the metal oxide with oxidation, by oxidized metal
In oxygen cement out, be reduced into metal simple-substance.
In the present embodiment, the reducing agent include malic acid, citric acid, stearic acid, phytic acid, cyclohexylamine hydrobromide,
One or more in diphenylguanidine hydrobromate, organic amine.Cyclohexylamine hydrobromide and the diphenylguanidine hydrobromate is to have
Machine halogen, the cyclohexylamine hydrobromide, diphenylguanidine hydrobromate and organic amine can not only play metal reduction, together
When can also be used as surfactant, change surface materialization equilibrium condition.
Wherein, effect of the thickening agent in the anti-oxidation reducing agent is：Disperse simultaneously in anti-oxidation reducing agent
Form skeleton, increase the viscosity of the anti-oxidation reducing agent, make the other components in the anti-oxidation reducing agent adsorbed or
It is fixed in skeleton, so as to form the semi-solid paste form with plasticity, is conducive to anti-oxidation reducing agent being filled in metal
In silk body and keep stable state.
In the present embodiment, the thickening agent includes one in soap base thickening agent, non-soap base thickening agent and hydroxyl thickening agent
Plant or a variety of.
Wherein, the soap base thickening agent includes the one or more in calcium grease, soda grease, aluminium base fat, lithium saponify.
Wherein, the non-soap base thickening agent include bentonite, it is silica gel, polytetrafluoroethylene (PTFE), polyureas, polyethylene, polypropylene, poly-
One or more in acid amides and polyimides.
Wherein, the hydroxyl thickening agent includes the one or more in ceresine and paraffin.
It is preferred that, the anti-oxidation reducing agent also includes the one or more in phosphoric acid, water and essence, described anti-oxidant
Reducing agent includes following components by weight percent：
0.05~3 part of surfactant, 70~95 parts of reducing agent, 5~30 parts of thickening agent, 0~5 part of phosphoric acid, water 0~20
Part, 0~3 part of essence.
Phosphoric acid is as organic reaction catalyst, refractory material additive, activated carbon treatment agent etc..
The water is preferred to use pure water, for dissolving part aqueous component, to adjust the anti-oxidation reducing agent
Hardness.
Essence is then in order to produce appropriate fragrance when in use, to improve working environment.
The wire provided according to the present embodiment, the weight ratio of the wire body and the anti-oxidation reducing agent is 10
~50:1~3, more preferably 30~40:1~2.The proportion of the anti-oxidation reducing agent is too low, is difficult to cover whole melting gold
Belong to the top surface of liquid level, it is too high, cause anti-oxidation reducing agent layer too thick, cause wastage of material, while influenceing the welding of metal
Effect.
It is corresponding, a diameter of 2~10mm of the wire, more preferably 2~5mm, a diameter of institute of hollow cavity
State the 1/6~1/3 of wire diameter, more preferably 1/5~1/4.
Above-mentioned wire can be applied to the anti-oxidant treatment of molten metal.
Embodiment 2
Present embodiment discloses the preparation method of wire as described in example 1 above, comprise the following steps：
S1：Weigh the anti-oxidation reducing agent that surfactant, reducing agent and thickening agent be mixed to get paste；
S2：Metal bar is obtained, metal bar is extruded into by the wire with hollow cavity by extrusion die, in extrusion
While, in the hollow cavity that the anti-oxidation reducing agent is packed into the wire.
The present invention is alternatively illustrated below by way of specific embodiment.
Embodiment 3
Present embodiment discloses a kind of preparation method of wire, comprise the following steps：
S1：The preparation of anti-oxidation reducing agent：
Weigh 2 parts by weight NPEs, 30 parts by weight organic amines, 3 parts by weight of phosphoric acid, the phytic acid of 40 parts by weight
With 5 parts by weight ceresine.
30 parts by weight organic amines are first slowly heated to 60~100 DEG C, 2 parts by weight Nonyl phenos are slowly added into
Ether, stirring obtains the first mixture in 3~5 minutes.
Treat that above-mentioned first mixture is cooled to 50~80 DEG C, 3 parts by weight of phosphoric acid and 40 parts by weight phytic acid are slowly added to
In one mixture, stir while adding, mixing time continues 10~15 minutes, obtains the second mixture.
5 parts by weight ceresine are added in the second mixture, stirred 10~15 minutes, cooling obtains the anti-oxidant of paste and gone back
Former agent.
S2：Wire is molded
Tin metal is put into melt in furnace, fusion process and adds a small amount of anti-oxidation reducing agent and is covered in its surface, will
Tin metal after fusing is poured into mould, casts metal bar.
Metal bar is extruded into the wire with hollow cavity by metal bar by extrusion die, in the process of extrusion
Middle to be packed into anti-oxidation reducing agent in the hollow cavity of the wire, the external diameter of the wire is 3mm, and internal diameter is 1mm.
The wire prepared is labeled as A1.
Embodiment 4
Present embodiment discloses a kind of preparation method of wire, comprise the following steps：
S1：The preparation of anti-oxidation reducing agent：
Weigh 2 parts by weight NPEs, 46 parts by weight cyclohexylamine hydrobromides, 21 parts by weight diphenylguanidine hydrogen bromines
Hydrochlorate, 3 parts by weight of phosphoric acid, the phytic acid of 12 parts by weight and 10 parts by weight soda greases.
First 46 parts by weight cyclohexylamine hydrobromides and the slow heating of 21 parts by weight diphenylguanidine hydrobromates are melted, slowly added
Enter 2 parts by weight NPEs, stirring obtains the first mixture in 3~5 minutes.
Treat that above-mentioned first mixture is cooled to 50~80 DEG C, 3 parts by weight of phosphoric acid and 12 parts by weight phytic acid are slowly added to
In one mixture, stir while adding, mixing time continues 10~15 minutes, obtains the second mixture.
10 parts by weight soda greases are added in the second mixture, stirred 10~15 minutes, cooling obtains the antioxygen of paste
Change reducing agent.
S2：Wire is molded
Tin metal is put into melt in furnace, fusion process and adds a small amount of anti-oxidation reducing agent and is covered in its surface, will
Tin metal after fusing is poured into mould, casts metal bar.
Metal bar is extruded into the wire with hollow cavity by metal bar by extrusion die, in the process of extrusion
Middle to be packed into anti-oxidation reducing agent in the hollow cavity of the wire, the external diameter of the wire is 4mm, and internal diameter is 1mm.
The wire prepared is labeled as A2.
Embodiment 5
Present embodiment discloses a kind of preparation method of wire, comprise the following steps：
S1：The preparation of anti-oxidation reducing agent：
Weigh 3 parts by weight Tween-80s, 52 weight of apple acid, 21 parts by weight of lemon acid, 10 parts by weight water and 5 parts by weight
Soda grease.
10 parts by weight water are first heated to 60~100 DEG C, 3 parts by weight Tween-80s are slowly added into, stirring is obtained for 3~5 minutes
First mixture.
Treat that above-mentioned first mixture is cooled to 30~50 DEG C, 52 weight of apple acid and 21 parts by weight of lemon slow acids are added
Enter in the first mixture, stir while adding, mixing time continues 10~15 minutes, obtains the second mixture.
5 parts by weight soda greases are added in the second mixture, stirred 10~15 minutes, cooling obtains the anti-oxidant of paste
Reducing agent.
S2：Wire is molded
Tin metal is put into melt in furnace, fusion process and adds a small amount of anti-oxidation reducing agent and is covered in its surface, will
Tin metal after fusing is poured into mould, casts metal bar.
Metal bar is extruded into the wire with hollow cavity by metal bar by extrusion die, in the process of extrusion
Middle to be packed into anti-oxidation reducing agent in the hollow cavity of the wire, the external diameter of the wire is 3mm, and internal diameter is 1mm.
The wire prepared is labeled as A3.
Embodiment 6
Present embodiment discloses a kind of preparation method of wire, including most implementation steps in such as embodiment 5, its
Difference is：
In the step S1,3 parts by weight Tween-80s, 52 weight of apple acid, 21 parts by weight of lemon acid, 10 weight are weighed
Part water and 12 parts by weight soda greases.
10 parts by weight water are first heated to 60~100 DEG C, 3 parts by weight Tween-80s are slowly added into, stirring is obtained for 3~5 minutes
First mixture.
Treat that above-mentioned first mixture is cooled to 30~50 DEG C, 52 weight of apple acid and 21 parts by weight of lemon slow acids are added
Enter in the first mixture, stir while adding, mixing time continues 10~15 minutes, obtains the second mixture.
12 parts by weight soda greases are added in the second mixture, stirred 10~15 minutes, cooling obtains the antioxygen of paste
Change reducing agent.
The wire prepared is labeled as A4.
Embodiment 7
Present embodiment discloses a kind of preparation method of wire, including most implementation steps in such as embodiment 5, its
Difference is：
In the step S1,3 parts by weight Tween-80s, 52 weight of apple acid, 21 parts by weight of lemon acid, 10 weight are weighed
Part water and 25 parts by weight soda greases.
10 parts by weight water are first heated to 60~100 DEG C, 3 parts by weight Tween-80s are slowly added into, stirring is obtained for 3~5 minutes
First mixture.
Treat that above-mentioned first mixture is cooled to 30~50 DEG C, 52 weight of apple acid and 21 parts by weight of lemon slow acids are added
Enter in the first mixture, stir while adding, mixing time continues 10~15 minutes, obtains the second mixture.
25 parts by weight soda greases are added in the second mixture, stirred 10~15 minutes, cooling obtains the antioxygen of paste
Change reducing agent.
The wire prepared is labeled as A5.
Embodiment 8
Present embodiment discloses a kind of preparation method of wire, including most implementation steps in such as embodiment 5, its
Difference is：
In the step S1,3 parts by weight Tween-80s, 52 weight of apple acid, 21 parts by weight of lemon acid, 10 weight are weighed
Part water and 12 parts by weight ceresine.
10 parts by weight water are first heated to 60~100 DEG C, 3 parts by weight Tween-80s are slowly added into, stirring is obtained for 3~5 minutes
First mixture.
Treat that above-mentioned first mixture is cooled to 30~50 DEG C, 52 weight of apple acid and 21 parts by weight of lemon slow acids are added
Enter in the first mixture, stir while adding, mixing time continues 10~15 minutes, obtains the second mixture.
12 parts by weight ceresine are added in the second mixture, stirred 10~15 minutes, cooling obtains the anti-oxidant of paste
Reducing agent.
The wire prepared is labeled as A6.
Comparative example 1
Present embodiment discloses a kind of preparation method of wire, comprise the following steps：
Tin metal is put into melt in furnace, fusion process and adds a small amount of anti-oxidation reducing agent and is covered in its surface, will
Tin metal after fusing is poured into mould, casts metal bar.
Metal bar is extruded into to solid wire by extrusion die, and the external diameter of the wire is for metal bar
4mm, internal diameter is 1mm.
The wire prepared is labeled as B1.
Performance test
Following performance test is carried out to above-mentioned wire A1, A2, A3, A4, A5, A6 and B1 prepared：
Wire A1, A2, A3, A4, A5, A6 are put into different solder baths respectively, rise temperature melts wire,
U-shaped screen cloth is set to collect the scruff produced in solder bath.
Wire B1 is put into solder bath, rise temperature melts wire, obtain molten metal, then it is golden toward melting
Commercially available anti-oxidant reducing solution is poured slowly into category, is stirred, sets U-shaped screen cloth to collect the scruff produced in solder bath.
Obtained test result inserts table 1.
Table 1
It is molten in preparation that the wire obtained using the preparation method of the invention provided is can be seen that from the test result of table 1
When melting metal, its internal anti-oxidation reducing agent can more be rapidly performed by diffusion covering, so as to molten metal
Protection is produced, the metal oxide residue produced is reduced, and then reduces the consumption to anti-oxidation reducing agent, and uses and first adds
The mode of anti-oxidant reducing solution is added after metal melting to produce scruff before anti-oxidant reducing solution is added, and cause anti-oxidant go back
The consumption of stoste, the diffusion of anti-oxidant reducing solution is slower in addition.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
Any modifications, equivalent substitutions and improvements made within refreshing and principle etc., should be included in the scope of the protection.
Claims (12)
1. a kind of wire of built-in reducing agent, it is characterised in that including wire body and anti-oxidation reducing agent, the metal
Silk body interior is provided with hollow cavity, and the anti-oxidation reducing agent is in paste and is filled in the hollow cavity, described anti-
Reductant-oxidant includes surfactant, reducing agent and thickening agent.
2. wire according to claim 1, it is characterised in that the wire body is tin metal or tin alloy.
3. wire according to claim 1, it is characterised in that the anti-oxidation reducing agent includes following components by weight percent：
0.05~3 part of surfactant, 70~95 parts of reducing agent, 5~30 parts of thickening agent.
4. wire according to claim 3, it is characterised in that the surfactant includes NPE
And its one or more in compound or derivative, Tween-80 and its compound or derivative.
5. wire according to claim 3, it is characterised in that the reducing agent includes malic acid, citric acid, tristearin
One or more in acid, phytic acid, cyclohexylamine hydrobromide, diphenylguanidine hydrobromate, organic amine.
6. wire according to claim 1, it is characterised in that the thickening agent includes calcium grease, soda grease, aluminium base
Fat, lithium saponify, bentonite, silica gel, polytetrafluoroethylene (PTFE), polyureas, polyethylene, polypropylene, polyamide, polyimides, ceresine and stone
One or more in wax.
7. wire according to claim 1, it is characterised in that the anti-oxidation reducing agent also include phosphoric acid, water and
One or more in essence.
8. wire according to claim 7, it is characterised in that the anti-oxidation reducing agent includes following components by weight percent：
0.05~3 part of surfactant, 70~95 parts of reducing agent, 5~30 parts of thickening agent, 0~5 part of phosphoric acid, 0~20 part of water, perfume
0~3 part of essence.
9. wire according to claim 1, it is characterised in that wire body and anti-oxidant reduction in the wire
The weight ratio of agent is 10~50:1~3.
10. wire according to claim 1, it is characterised in that a diameter of 2~10mm of the wire, it is described in
The 1/6~1/3 of a diameter of wire diameter of cavity body.
11. the preparation method of the wire according to any one in claim 1~10, it is characterised in that including as follows
Step：
Weigh the anti-oxidation reducing agent that surfactant, reducing agent and thickening agent be mixed to get paste；
Metal bar is obtained, metal bar is extruded into by the wire with hollow cavity by extrusion die, while extrusion,
In the hollow cavity that the anti-oxidation reducing agent is packed into the wire.
12. application of the wire in molten metal oxidation resistance processing as described in any one in claim 1~10.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710306813.7A CN107186389A (en) | 2017-05-04 | 2017-05-04 | A kind of wire of built-in reducing agent and preparation method thereof, application |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710306813.7A CN107186389A (en) | 2017-05-04 | 2017-05-04 | A kind of wire of built-in reducing agent and preparation method thereof, application |
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| CN107186389A true CN107186389A (en) | 2017-09-22 |
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| CN201710306813.7A Pending CN107186389A (en) | 2017-05-04 | 2017-05-04 | A kind of wire of built-in reducing agent and preparation method thereof, application |
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| CN110669569A (en) * | 2019-08-20 | 2020-01-10 | 海斯坦普汽车组件（昆山）有限公司 | Welding wire lubricant capable of effectively reducing welding spatter and air holes |
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