CN104741835A - Seamless silver flux-cored wire - Google Patents

Seamless silver flux-cored wire Download PDF

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Publication number
CN104741835A
CN104741835A CN201510180836.9A CN201510180836A CN104741835A CN 104741835 A CN104741835 A CN 104741835A CN 201510180836 A CN201510180836 A CN 201510180836A CN 104741835 A CN104741835 A CN 104741835A
Authority
CN
China
Prior art keywords
seamless
silver
flux
medicine core
fluoride
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.)
Pending
Application number
CN201510180836.9A
Other languages
Chinese (zh)
Inventor
龙伟民
钟素娟
张雷
鲍丽
杨继东
马力
王星星
李秀朋
李永
路全彬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhengzhou Research Institute of Mechanical Engineering Co Ltd
Original Assignee
Zhengzhou Research Institute of Mechanical Engineering Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zhengzhou Research Institute of Mechanical Engineering Co Ltd filed Critical Zhengzhou Research Institute of Mechanical Engineering Co Ltd
Priority to CN201510180836.9A priority Critical patent/CN104741835A/en
Publication of CN104741835A publication Critical patent/CN104741835A/en
Pending legal-status Critical Current

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
    • B23K35/02—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
    • B23K35/0227—Rods, wires
    • 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
    • B23K35/24—Selection of soldering or welding materials proper
    • B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
    • 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
    • B23K35/24—Selection of soldering or welding materials proper
    • B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
    • B23K35/3006—Ag as the principal constituent
    • 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
    • B23K35/3601—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 inorganic compounds as principal constituents
    • B23K35/3606—Borates or B-oxides
    • 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
    • B23K35/368—Selection of non-metallic compositions of core materials either alone or conjoint with selection of soldering or welding materials
    • 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
    • B23K35/406—Filled tubular wire or rods
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C5/00—Alloys based on noble metals
    • C22C5/06—Alloys based on silver
    • C22C5/08—Alloys based on silver with copper as the next major constituent

Abstract

The invention provides a seamless silver flux-cored wire. The seamless silver flux-cored wire comprises a seamless silver solder tube, and a flux core which is wrapped with a hollow cylindrical cavity of the seamless silver solder tube and prepared from flux powder. The seamless silver flux-cored wire is characterized in that the silver solder tube and a silver solder wire are prepared from the following components in percentage by mass: 21 to 55% of silver, 20 to 37% of copper, 12 to 36% of zinc, 1.2 to 5.6% of tin, and 0.05 to 055 of trace elements; the flux powder is prepared from the following components in percentage by mass: 13.5 to 18.5% of borax, 68.0 to 70.0% of borate, 9.0 to 10.5% of activating agent, and 4.0 to 6.0% of paste forming agent. Compared with the existing product, the seamless silver flux-cored wire has the advantages of being high in stiffness, difficult to leak of flux powder, high in production efficiency, small in cost, easy to be stored, and suitable for medium-temperature soldering.

Description

A kind of seamless medicine core silver wire
Technical field
The present invention relates to a kind of welding material, be specifically related to a kind of seamless medicine core silver wire.
Background technology
Flux-cored wire is a kind of novel welding material, compared with solid core welding wire, have that welding efficiency is high, constituent adjustment flexibly, energy-saving material-saving, solder flux consumption be few, pollute the advantages such as little, appearance of weld is attractive in appearance, is applicable to continuous automatic welding.
Silver solder fusing point is moderate, welding usability good, has good intensity, toughness, electric conductivity, thermal conductivity and corrosion resistance, is a most widely used class hard solder, particularly green cadmium-free silver brazing alloy, is the emphasis that domestic and international soldering industry was paid close attention in recent years.In general, before soldering, surface of the work to be welded often has layer oxide film, existing method for welding manually adds brazing flux to after workpiece heat, the method welding cost is high, efficiency is lower, not easily accurately control brazing flux consumption, often occur that brazing flux adds too much or non-uniform phenomenon, not only waste brazing flux in a large number, and postwelding surface of the work brazing flux residue is difficult to remove.
By using flux-cored wire, automatically, equably can add brazing flux, effectively reducing brazing flux consumption, but common are seam flux-cored wire in the market, solder surface brazing flux is residual not easily to be removed, and the easy moisture absorption of brazing flux, the storage time is short.Existing method for manufacturing flux-cored wire mainly contains that band rolls, powder filled out by hollow tubing, extruding billet is filled out powder and extruded three kinds.Easy to crack and leak powder at winding process without the O type pipe seam of seam in strip coil method for making; Latter two method is when packed weight changes, and the product containing unnecessary not enough packed weight can only make waste disposal.
Patent 201110435173.2 disclosed " silver-based flux-cored wire and manufacture method ", adopt seamless extrusion to fill with core manufacturing technique method and manufacture Ag-Cu-Zn seamless flux-cored wire, brazing filler metal melts temperature range is at 710 ~ 760 DEG C, and welding temperature is 760 ~ 800 DEG C, is mainly used in high temperature brazing.But for middle low temperature brazing, the welding wire of this patent manufacture cannot be suitable for, and have certain limitation.Meanwhile, the method single extruding billet limited mass, each billet can only be squeezed into single line base, there is welding wire, brazing flux breaks empty hidden danger.Therefore working (machining) efficiency is low, cannot realize continuous, High-efficient Production.
Summary of the invention
Object of the present invention provide for weak point existing in above-mentioned prior art just a kind of can efficiently, the seamless medicine core silver wire of automatic welding.
Object of the present invention realizes by following technique measures:
The present invention is seamless, and medicine core silver wire comprises seamless silver solder pipe and is wrapped in the medicine core be made up of medicinal powder in seamless silver solder pipe hollow posts chamber; The mass percent of each component of described silver solder pipe and silver solder silk is as follows: silver 21 ~ 55%, copper 20 ~ 37%, zinc 12 ~ 36%, tin 1.2 ~ 5.6%, trace element 0.05 ~ 0.5%; The mass percent of each component of described medicinal powder is as follows: borax 13.5 ~ 18.5%, borate 68.0 ~ 70.0 %, activating agent 9.0 ~ 10.5 %, paste making agent 4.0 ~ 6.0 %.
Described in the present invention, trace element takes from any one or two kinds in gallium, indium, cerium, antimony, lithium, yttrium or silicon.
Activating agent of the present invention is the mixture of lithium fluoride and potassium fluoride or sodium fluoride, and wherein lithium fluoride accounts for 75 ~ 85 % of gross mass.
Paste making agent of the present invention is prefabricated into paste by calcirm-fluoride, zinc chloride mixing, and wherein calcirm-fluoride accounts for 70 ~ 90 % of gross mass.
Described medicinal powder accounts for 15.0 ~ 20.0% of welding wire total weight percent.
The fusion temperature of described seamless medicine core silver wire is 590 ~ 707 DEG C, and brazing temperature is 650 ~ 750 DEG C.
Beneficial effect of the present invention is as follows:
1, in the seamless medicine core silver wire that prepared by the present invention, medicinal powder percentage by weight is 15.0 ~ 20.0%.
2, the medicine core silver wire molten temperature region that prepared by the present invention is 590 ~ 707 DEG C, and brazing temperature is 650 ~ 750 DEG C, can be used for middle temperature brazing.
3, seamless medicine core silver wire crust of the present invention can be indefinite length, can increase substantially follow-up drawing tube reducing efficiency.
4, the seamless medicine core silver wire prepared of the present invention, medicinal powder not easily leaks, and accurately can control its content.
5, the present invention have that production efficiency is high, brazing flux loss less and be easy to the feature that stores, can be used for Copper and its alloy, carbon steel, stainless induction brazing and gas brazing.
Detailed description of the invention
The present invention is described in further detail below with reference to embodiment
embodiment 1:
The present invention is seamless, and medicine core silver wire comprises seamless silver solder pipe and is wrapped in the medicine core be made up of medicinal powder in seamless silver solder pipe hollow posts chamber; The mass percent of each component of described silver solder pipe is as follows: silver 40.3%, copper 30.2%, zinc 27.5 %, tin 1.8 %, gallium 0.2%; Finished product traditional Chinese medicine powder filling rate is 15.8%; The mass percent of each component of described medicinal powder is as follows: wherein borax 14.6 %, borate 69.8%, activating agent 9.9 %, paste making agent 5.7 %; The wire melting temperature of processing is 651 ~ 702 DEG C,
Above-mentioned welding wire realizes by following method:
1st step, by silver 40.3%, copper 30.2%, zinc 27.5 %, tin 1.8 %, gallium 0.2% carries out preparing burden, melting, and is cast into ingot, ingot casting is placed in annealing furnace and anneals, annealing temperature 540 ~ 560 DEG C;
2nd step, is the medicinal powder of 15.8% by the proportions filling rate of borax 14.6%, borate 69.8%, activating agent 9.9%, paste making agent 5.7 %, medicinal powder is heated to 560 ~ 580 DEG C and is molten into liquid state;
3rd step, adopts pressurizing unit to extrude the ingot casting of having annealed, forms seamless silver solder pipe;
4th step, adopts draw-out device by the seamless silver solder pipe of the liquid brazing flux suction of the 2nd step, obtains seamless medicine core silver wire.
Following embodiment is identical with the preparation method of embodiment 1, repeats no more.
embodiment 2:
Described in the present embodiment, the mass percent of each component of silver solder pipe is as follows: silver-colored 44.8 %, copper 27.2%, zinc 25.5 %, tin 2.2 %, indium 0.3%; Finished product welding wire traditional Chinese medicine powder filling rate is 16.1 %; The mass percent of each component of described medicinal powder is as follows: wherein borax 15.4 %, borate 69.6%, activating agent 9.8%, paste making agent 5.2 %; The wire melting temperature of preparation is 640.5 ~ 681 DEG C.
embodiment 3:
Described in the present embodiment, the mass percent of each component of silver solder pipe is as follows: silver-colored 54.9 %, copper 21.5%, zinc 17.9 %, tin 5.2 %, indium 0.2%, gallium 0.3%; Finished product welding wire traditional Chinese medicine powder filling rate is 15.5 %; The mass percent of each component of described medicinal powder is as follows: wherein borax 16.3%, borate 68.5%, activating agent 10.4%, paste making agent 4.8 %; The wire melting temperature of preparation is 610 ~ 650 DEG C.
embodiment 4:
Described in the present embodiment, the mass percent of each component of silver solder pipe is as follows: silver 30.1%, copper 36.35 %, zinc 28.9%, tin 4.6 %, cerium 0.05 %; Finished product welding wire traditional Chinese medicine powder filling rate is 15.3 %; The mass percent of each component of described medicinal powder is as follows: wherein borax 17.1 %, borate 68.1%, activating agent 9.4%, paste making agent 5.4 %; The wire melting temperature of preparation is 615 ~ 701 DEG C.
embodiment 5:
Described in the present embodiment, the mass percent of each component of silver solder pipe is as follows: silver 35.1%, copper 34.3%, zinc 26.6%, tin 3.95%, silicon 0.05 %; Finished product welding wire traditional Chinese medicine powder filling rate is 15.1 %; The mass percent of each component of described medicinal powder is as follows: wherein weight ratio shared by borax is 15.8 %, borate 69.6 %, activating agent 10.1%, paste making agent 4.5 %; The wire melting temperature of preparation is 625 ~ 703 DEG C.

Claims (6)

1. a seamless medicine core silver wire, it comprises seamless silver solder pipe and is wrapped in the medicine core be made up of medicinal powder in seamless silver solder pipe hollow posts chamber, it is characterized in that: the mass percent of each component of described silver solder pipe and silver solder silk is as follows: silver 21 ~ 55%, copper 20 ~ 37%, zinc 12 ~ 36%, tin 1.2 ~ 5.6%, trace element 0.05 ~ 0.5%; The mass percent of each component of described medicinal powder is as follows: borax 13.5 ~ 18.5%, borate 68.0 ~ 70.0 %, activating agent 9.0 ~ 10.5 %, paste making agent 4.0 ~ 6.0 %.
2. seamless medicine core silver wire according to claim 1, is characterized in that: described trace element takes from any one or two kinds in gallium, indium, cerium, antimony, lithium, yttrium or silicon.
3. seamless medicine core silver wire according to claim 1, is characterized in that: described medicinal powder accounts for 15.0 ~ 20.0% of welding wire total weight percent.
4. seamless medicine core silver wire according to claim 1, is characterized in that: the fusion temperature of described seamless medicine core silver wire is 590 ~ 707 DEG C, and brazing temperature is 650 ~ 750 DEG C.
5. seamless medicine core silver wire according to claim 1, it is characterized in that: described activating agent is the mixture of lithium fluoride and potassium fluoride or sodium fluoride, wherein lithium fluoride accounts for 75 ~ 85 % of gross mass.
6. seamless medicine core silver wire according to claim 1, is characterized in that: described paste making agent is prefabricated into paste by calcirm-fluoride, zinc chloride mixing, and wherein calcirm-fluoride accounts for 70 ~ 90 % of gross mass.
CN201510180836.9A 2015-04-17 2015-04-17 Seamless silver flux-cored wire Pending CN104741835A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510180836.9A CN104741835A (en) 2015-04-17 2015-04-17 Seamless silver flux-cored wire

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Application Number Priority Date Filing Date Title
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Publications (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109202331A (en) * 2018-11-01 2019-01-15 江苏科技大学 A kind of medicine core silver solder with excellent fluidity

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2417060A1 (en) * 1974-04-08 1975-10-16 Degussa Cadmium-free silver-based solder alloys - consisting of silver, copper, zinc, tin and indium
CN102513726A (en) * 2011-12-22 2012-06-27 佛山市益宏焊接有限公司 Silver-based flux-cored wire and manufacturing method thereof
CN103480988A (en) * 2013-09-26 2014-01-01 郑州机械研究所 High tin and silver base welding rod and preparation method thereof
CN104227268A (en) * 2014-09-28 2014-12-24 杭州华光焊接新材料股份有限公司 Preparation method of fluxed core welding ring
CN104384757A (en) * 2014-09-28 2015-03-04 杭州华光焊接新材料股份有限公司 Preparation method of brass flux-cored welding ring

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2417060A1 (en) * 1974-04-08 1975-10-16 Degussa Cadmium-free silver-based solder alloys - consisting of silver, copper, zinc, tin and indium
CN102513726A (en) * 2011-12-22 2012-06-27 佛山市益宏焊接有限公司 Silver-based flux-cored wire and manufacturing method thereof
CN103480988A (en) * 2013-09-26 2014-01-01 郑州机械研究所 High tin and silver base welding rod and preparation method thereof
CN104227268A (en) * 2014-09-28 2014-12-24 杭州华光焊接新材料股份有限公司 Preparation method of fluxed core welding ring
CN104384757A (en) * 2014-09-28 2015-03-04 杭州华光焊接新材料股份有限公司 Preparation method of brass flux-cored welding ring

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109202331A (en) * 2018-11-01 2019-01-15 江苏科技大学 A kind of medicine core silver solder with excellent fluidity

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Application publication date: 20150701