CN104148825B - A kind of unleaded green weld-aiding cream - Google Patents
A kind of unleaded green weld-aiding cream Download PDFInfo
- Publication number
- CN104148825B CN104148825B CN201410394569.0A CN201410394569A CN104148825B CN 104148825 B CN104148825 B CN 104148825B CN 201410394569 A CN201410394569 A CN 201410394569A CN 104148825 B CN104148825 B CN 104148825B
- Authority
- CN
- China
- Prior art keywords
- rosin
- weld
- activator
- composite
- aiding cream
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- B23K35/3613—Polymers, e.g. resins
-
- 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
- B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
- B23K35/0222—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in soldering, brazing
- B23K35/0244—Powders, particles or spheres; Preforms made therefrom
- B23K35/025—Pastes, creams, slurries
-
- 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
- B23K35/362—Selection of compositions of fluxes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electric Connection Of Electric Components To Printed Circuits (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
Present invention is disclosed a kind of unleaded green weld-aiding cream, comprise by the component of mass percent: rosin matrix 35%-40%, solvent 52.5%-60%, activator 4.0%-5.5%, surfactant 0.3%-0.5% and auxiliaryly join additive 0.7%-1.5%, wherein rosin matrix is Foral, water-white rosin, newtrex or wherein appoint both a certain proportion of composite rosin, solvent is ethanol, isopropyl alcohol, butyl glycol ether, a kind of or wherein two or more complex solvent in diethylene glycol (DEG), activator for volatilize at pb-free solder temperature, the organic acid of postwelding noresidue, auxiliary additive of joining is selected from thixotropic agent, curing agent, corrosion inhibiter, one or more in flavor enhancement are composite.The Developing Application of weld-aiding cream of the present invention, can significantly improve the residual insulaion resistance of postwelding, promote wetting, that improves scaling powder helps weldering performance simultaneously, postwelding insulating properties meet L-type scaling powder requirement in IPC/J-STD-004B, can meet the requirement of ordinary consumption electronic product soldering reliability.
Description
Technical field
The present invention relates to widely used auxiliary welding material in electronic assemblies manufacturing process, particularly relate to a kind of weld-aiding cream body being devoted to environmental protection development, belong to and help wlding material formula field.
Background technology
The international and domestic environmental protection such as lead-free and halogen-free regulation brings huge innovation to whole electronics manufacturing and impacts, and environmental protection, energy-saving low-carbon become electronic manufacturing industry future developing trend gradually, and environmental protection electronic material has become manufacturing first-selection.
Have in splicer's skill the common weld-aiding cream that uses gradually substitute by leadless weld-aiding cream.And leadless weld-aiding cream helping weldering performance to improve it, improving and helping weldering effect, some have the active additive of harm to realize to environment often to adopt increase.But while raising welding performance, in weld-aiding cream, the solvent body harm brought to a line user of volatilizing can not be ignored, and adds that follow-up weld-aiding cream residue uses the problems such as the potential risk brought also to cause the concern of manufacture industry to the product later stage.New green environment protection weld-aiding cream is the basis of further development of new solder(ing) paste, so numerous electronic material manufacturer is all updating its effective proportioning of exploration, promote respective low-residual, new varieties that toxicity is low, to ensure that respective product commercially has stronger life.
Summary of the invention
Object of the present invention is intended to propose a kind of unleaded green weld-aiding cream, to ensureing that weld-aiding cream meets the restriction requirement of environmental regulation when weld job under certain reactive conditions, postwelding residue excellent insulation performance; And SnAg system, Sn(Ag can be met) Bi system, SnAgCu system, Sn(Ag) welding requirements of the lead-free solder such as Zn system.
The technical scheme that the present invention realizes above-mentioned purpose is: a kind of unleaded green weld-aiding cream, it is characterized in that comprising by the component of mass percent: rosin matrix 35%-40%, solvent 52.5%-60%, activator 4.0%-5.5%, surfactant 0.3%-0.5% and auxiliaryly join additive 0.7%-1.5%, wherein said rosin matrix is Foral, water-white rosin, newtrex or wherein appoint both a certain proportion of composite rosin, described solvent is ethanol, isopropyl alcohol, butyl glycol ether, a kind of or wherein two or more complex solvent in diethylene glycol (DEG), described activator for volatilize at pb-free solder temperature, the organic acid of postwelding noresidue, described auxiliary additive of joining is selected from thixotropic agent, curing agent, corrosion inhibiter, one or more in flavor enhancement are composite.
Further, described activator is aromatic acid or aliphatic organic acid.
Further, described surfactant is OP-10 or TX-10.
Further, above-mentioned unleaded green weld-aiding cream comprises by the component of mass percent: composite solvent, activator 5.5%, OP-100.5%, rilanit special 0.3%, ethylenediamine 0.8% and the menthol 0.2% obtained of rosin matrix 40%, butyl glycol ether 30% and diethylene glycol (DEG) 22.7%, wherein rosin matrix be newtrex, water-white rosin by the composite rosin of 2:8, described activator is that elaidic acid, ethanedioic acid, SA are by the composite activator of 1:2:2.5.
Further, above-mentioned unleaded green weld-aiding cream comprises by the component of mass percent:: rosin matrix 35%, isopropyl alcohol 60%, activator 3.5%, TX-100.3%, rilanit special 0.6%, BTA 0.1% and ethylenediamine 0.5%, wherein rosin matrix be Foral, water-white rosin by the composite rosin of 3:4, described activator is that citric acid, butanedioic acid, pimelic acid are by the composite activator of 2:0.5:1.
The Developing Application of weld-aiding cream of the present invention, compares to existing this type of and helps wlding material to have outstanding technological merit, show as: it is halogen contained compound not, environmental protection, can significantly improve the residual insulaion resistance of postwelding, promote wetting, that improves scaling powder helps weldering performance simultaneously.Weld-aiding cream production, transport, storage and safety in utilization are good.Through testing evaluation, this weld-aiding cream wetability is good, and the rate of spread is all greater than 80%, and postwelding insulating properties meet L-type scaling powder requirement in IPC/J-STD-004B, can meet the requirement of ordinary consumption electronic product soldering reliability.
Accompanying drawing explanation
Fig. 1 is the preparation process schematic diagram of the unleaded green weld-aiding cream of the present invention.
Detailed description of the invention
The present invention is directed to the current requirement to whole electronic manufacturing industry environmental protection day by day to promote and the wretched insufficiency of current weld-aiding cream material aspect in safety and environmental protection, innovation proposes a kind of unleaded green weld-aiding cream.Adopt composite rosin as the matrix of weld-aiding cream, ensure postwelding residue insulating properties; Use weak organic acid as active additive, while guarantee is active, environmental regulation restriction requirement can be met.This weld-aiding cream helps weldering property excellent, has both possessed scaling powder in existing solder(ing) paste a little, meets again the requirement of International Environmental Protection regulation simultaneously, can meet SnAg system, Sn(Ag) Bi system, SnAgCu system, Sn(Ag) welding requirements of the lead-free solder such as Zn system.
From Substantial technical scheme of the present invention, this kind of unleaded green weld-aiding cream comprises by the component of mass percent: rosin matrix 35%-40%, solvent 52.5%-60%, activator 4.0%-5.5%, surfactant 0.3%-0.5% and auxiliaryly join additive 0.7%-1.5%, wherein this rosin matrix can be Foral, water-white rosin or newtrex, also can be wherein to appoint both a certain proportion of composite rosin; This solvent is a kind of in ethanol, isopropyl alcohol, butyl glycol ether, diethylene glycol (DEG) or wherein two or more complex solvent by a certain percentage, this activator can select aromatic acid or other aliphatic organic acid, especially succinic acid, malic acid, benzoic acid, glutaric acid, adipic acid, elaidic acid etc., can to select wherein several carry out composite, this activator has enough chemisms, can volatilize and postwelding noresidue, component insulation are functional at pb-free solder temperature.
OP-10(APES selected by above-mentioned surfactant), TX-10(NPE) or similar active agents, the surface tension of aqueous solvent can be reduced, strengthen wetting power, improve welding machine and help weldering performance.
In addition, above-mentioned auxiliary additive of joining is selected from the chemical compositions such as thixotropic agent, curing agent, corrosion inhibiter, flavor enhancement, or wherein several composite, to improve actual serviceability and product odour.
The preparation process of this unleaded green weld-aiding cream, comprises step as shown in Figure 1 and is described as follows.
I, with cleaning glass or pottery as preparing container, solvent and rosin matrix are positioned in container, are stirred under the heating condition of 70-80 DEG C and dissolve completely.
II, organic acid for activating agent is dissolved in surfactant under 40-50 DEG C of water-bath, stirs.
III, above-mentioned dose of liquid step II dissolved, under agitation slowly joins and the preparing in container of solvent and rosin matrix is housed.
IV, additive (thixotropic agent, curing agent, corrosion inhibiter etc.) is added according to actual needs.
V, fully stir, mix.
Below by way of the proportioning introduction of several specific embodiment, be easier to make the weld-aiding cream technical scheme of this creation understand and realize.
Embodiment one, this proportioning is for containing weak organic acid active additive, the environmental protection weld-aiding cream of not halogen-containing active material, and concrete component is by each raw material weight percentage (wt%):
Newtrex 8%, water-white rosin 32%, butyl glycol ether 30%, diethylene glycol (DEG) 22.7%, elaidic acid 1.0%, ethanedioic acid 2.0%, SA 2.5%, OP-100.5%, rilanit special 0.3%, ethylenediamine 0.8% and menthol 0.2%, wherein newtrex, water-white rosin composite formation rosin matrix, the composite formation hybrid activator of elaidic acid, ethanedioic acid, SA.
Embodiment two, this proportioning is for containing weak organic acid active additive, the environmental protection weld-aiding cream of not halogen-containing active material, and concrete component is by each raw material weight percentage (wt%):
Foral 15%, water-white rosin 20%, isopropyl alcohol 60%, pimelic acid 1.0%, citric acid 2.0%, butanedioic acid 0.5%, TX-100.5%, rilanit special 0.6%, hexamethylene diamine 0.5% and BTA (BTA) 0.1%, wherein Foral, water-white rosin composite formation rosin matrix, the composite formation hybrid activator of citric acid, butanedioic acid, pimelic acid.
Embodiment three, this proportioning is for containing weak organic acid active additive, the environmental protection weld-aiding cream of not halogen-containing active material, and concrete component is by each raw material weight percentage (wt%):
Newtrex 9%, Foral 27%, butyl glycol ether 30%, isopropyl alcohol 28%, malic acid 1.0%, benzoic acid 2.0%, succinic acid 1.5%, OP-100.4%, rilanit special 0.3%, ethylenediamine 0.6% and menthol 0.2%, wherein newtrex, Foral composite formation rosin matrix, the composite formation hybrid activator of malic acid, benzoic acid, succinic acid.
To sum up can be expressly understood the Developing Application of weld-aiding cream of the present invention, comparing to existing this type of helps wlding material to have outstanding technological merit, show as: it is halogen contained compound not, environmental protection, the residual insulaion resistance of postwelding can be significantly improved, promote wetting, that improves scaling powder helps weldering performance simultaneously.Weld-aiding cream production, transport, storage and safety in utilization are good.Through testing evaluation, this weld-aiding cream wetability is good, and the rate of spread is all greater than 80%, and postwelding insulating properties meet L-type scaling powder requirement in IPC/J-STD-004B, can meet the requirement of ordinary consumption electronic product soldering reliability.
Below embodiment by reference to the accompanying drawings describes, and is intended to be convenient to understand innovation essence of the present invention, but not limits the embodiment of its versatility and the claims of requirement with this.In every case understand the present invention, and change or component replacement according to the equivalent structure that above-described embodiment carries out, the design of identical object and effect can be realized, the infringement to present patent application protection content all should be considered as.
Claims (2)
1. a unleaded green weld-aiding cream, it is characterized in that comprising by the component of mass percent: composite solvent, activator 5.5%, OP-100.5%, rilanit special 0.3%, ethylenediamine 0.8% and the menthol 0.2% obtained of rosin matrix 40%, butyl glycol ether 30% and diethylene glycol (DEG) 22.7%, wherein rosin matrix be newtrex, water-white rosin by the composite rosin of 2:8, described activator be elaidic acid, ethanedioic acid, SA by 1:2:2.5 composite and volatilize at pb-free solder temperature, the activator of postwelding noresidue.
2. a unleaded green weld-aiding cream, it is characterized in that comprising by the component of mass percent: rosin matrix 35%, isopropyl alcohol 60%, activator 3.5%, TX-100.3%, rilanit special 0.6%, BTA 0.1% and ethylenediamine 0.5%, wherein rosin matrix be Foral, water-white rosin by the composite rosin of 3:4, described activator be citric acid, butanedioic acid, pimelic acid by 2:0.5:1 composite and volatilize at pb-free solder temperature, the activator of postwelding noresidue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410394569.0A CN104148825B (en) | 2014-08-12 | 2014-08-12 | A kind of unleaded green weld-aiding cream |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410394569.0A CN104148825B (en) | 2014-08-12 | 2014-08-12 | A kind of unleaded green weld-aiding cream |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104148825A CN104148825A (en) | 2014-11-19 |
| CN104148825B true CN104148825B (en) | 2016-02-17 |
Family
ID=51874542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410394569.0A Active CN104148825B (en) | 2014-08-12 | 2014-08-12 | A kind of unleaded green weld-aiding cream |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104148825B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105537803A (en) * | 2016-02-24 | 2016-05-04 | 苏州龙腾万里化工科技有限公司 | Protective anti-corrosion no-clean flux |
| CN105945455A (en) * | 2016-06-29 | 2016-09-21 | 沈根来 | Soldering flux and preparation method thereof |
| CN106271217A (en) * | 2016-09-23 | 2017-01-04 | 工业和信息化部电子第五研究所华东分所 | A kind of disposable halogen-free scaling powder and low temperature solder stick |
| CN110653519A (en) * | 2019-10-23 | 2020-01-07 | 宁波新锦春新材料科技有限公司 | Formula and production process of environment-friendly soldering flux |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4342607A (en) * | 1981-01-05 | 1982-08-03 | Western Electric Company, Inc. | Solder flux |
| MXPA02005498A (en) * | 1999-12-03 | 2004-09-10 | Fry S Metals Inc D B A | Soldering flux. |
| CN101462209A (en) * | 2009-01-16 | 2009-06-24 | 深圳市唯特偶化工开发实业有限公司 | Common resin type soldering flux without halogen suitable for low-silver leadless solder paste |
| CN101585118A (en) * | 2009-03-09 | 2009-11-25 | 郴州金箭焊料有限公司 | Soldering flux for low-temperature lead-free soldering paste |
| CN102794582B (en) * | 2012-08-15 | 2015-01-14 | 北京工业大学 | Soldering flux matched with high-melting-point solder and preparation method thereof |
| CN103111773A (en) * | 2012-12-13 | 2013-05-22 | 郴州金箭焊料有限公司 | Scaling powder for lead-free solder paste |
-
2014
- 2014-08-12 CN CN201410394569.0A patent/CN104148825B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104148825A (en) | 2014-11-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104148825B (en) | A kind of unleaded green weld-aiding cream | |
| CN101367160B (en) | Cleaning-free lead-free solder soldering fluid without containing halide | |
| CN102398124B (en) | Water-based cleaning-free flux for lead-free welding flux and preparation method thereof | |
| CN100532003C (en) | Colophony type non-halide cleaning-free soldering flux for lead-free solder wire | |
| CN100528462C (en) | Low-rosin cleaning-free scaling powder for SnAgCu series lead-free soldering paste and preparation method thereof | |
| CN100591462C (en) | Soldering flux without lead for soft soldering wire, and preparation method | |
| CN107088716B (en) | Environment-friendly low-temperature residue-free solder paste and preparation method thereof | |
| CN100591461C (en) | Halogen-free soldering flux for soft welding wire without lead, and preparation method | |
| CN104191108B (en) | A kind of Halogen high activity low spatter solder stick scaling powder and preparation method thereof | |
| CN101890595B (en) | Low-rosin washing-free soldering flux for lead-free flux-cored wires and preparation method thereof | |
| CN102069324B (en) | No-clean low-splashing soldering flux for lead-free solder wire and preparation method thereof | |
| CN103008919B (en) | Low-silver halogen-free lead-free solder paste | |
| JP5069725B2 (en) | Thermosetting resin composition and circuit board | |
| CN104923952A (en) | Lead-free halogen-free tin paste and production process thereof | |
| CN101780606A (en) | Washing-free lead-free halogen-free tin soldering paste | |
| CN102069323B (en) | Intermediate-temperate tin alloy soldering paste used for through hole coating and preparation method thereof | |
| CN104785949B (en) | Solder powder doped with tin-plated alloyed powder and soldering paste containing solder powder | |
| CN113441867B (en) | Halogen-free lead-free antioxidant solder paste and preparation method thereof | |
| CN103128461A (en) | Scaling powder for lead-free solder wire | |
| CN103737200A (en) | Water-based environment-friendly scaling powder | |
| JP2017064758A (en) | Flux composition, solder composition and electronic substrate | |
| CN103111773A (en) | Scaling powder for lead-free solder paste | |
| CN109262161A (en) | A kind of low-residual halogen-free soldering tin paste | |
| CN102513735A (en) | Flux paste for high-bismuth content solder paste and preparation method thereof | |
| CN101003111A (en) | Soldering flux in use for SnZn series solder with no lead, and preparation method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |