CN108526763A - A kind of high alkalinity fluorine alkaline type fysed flux peculiar to vessel and preparation method thereof - Google Patents
A kind of high alkalinity fluorine alkaline type fysed flux peculiar to vessel and preparation method thereof Download PDFInfo
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- CN108526763A CN108526763A CN201810703962.1A CN201810703962A CN108526763A CN 108526763 A CN108526763 A CN 108526763A CN 201810703962 A CN201810703962 A CN 201810703962A CN 108526763 A CN108526763 A CN 108526763A
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- vessel
- alkaline type
- fysed flux
- high alkalinity
- peculiar
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Classifications
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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
- B23K35/3601—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
- B23K35/3603—Halide salts
- B23K35/3605—Fluorides
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Nonmetallic Welding Materials (AREA)
Abstract
A kind of high alkalinity fluorine alkaline type fysed flux peculiar to vessel and preparation method thereof, belongs to welding technology field；Fysed flux contains ingredient：CaF2：30~40%, MgO：14~20%, Al2O3：15~20%, SiO2：15~20%, MnO：4~10%, TiO2：2~15%；Wherein, in mass ratio, CaF2: the mass percent summation of MgO >=1.5, each component is 100%；Preparation method：1) proportioning for pressing high alkalinity fluorine alkaline type fysed flux peculiar to vessel weighs each component raw material and is uniformly mixed；Glassy state semi-finished product are made in smelted product water quenching by heat preservation >=20min after melting；2) by glassy state semi-finished product, product of roasting is made in high-temperature roasting；3) product of roasting is broken, sieving, granularity are that the particle of 12~120 mesh is high alkalinity fluorine alkaline type fysed flux peculiar to vessel；The tensile strength intensity of present invention high alkalinity fluorine alkaline type fysed flux peculiar to vessel, the welding point obtained by postwelding is 687~715MPa, and (40 DEG C) of low-temperature impact work is 67~83J.
Description
Technical field
The invention belongs to welding technology field, specifically a kind of high alkalinity fluorine alkaline type fysed flux peculiar to vessel and its preparation side
Method.
Background technology
Submerged arc flux is one of main consumable material of submerged-arc welding, and Resistance of Weld Metal plays machinery and protects in the welding process
Shield, Metallurgical processing and the effect for improving welding technological properties, the welding technological properties and chemical metallurgy performance of solder flux are to determine weldering
An important factor for stitching metal quality.Compared to sintered flux, fysed flux has particle, and uniformly height, deposited metal composition are equal
The even, moisture absorption is inclined to the advantages that small, welding process is stable, gas fume amount is less, high recycling rate.It is acid in fluorine alkaline type solder flux
Oxide content is less, and solder flux oxidisability is weak, and anti-stomata ability is strong, is conducive to the weld metal for obtaining high/low temperature toughness.It is full
Pressing needs of the sufficient industrialized production to the solder flux of function admirable, it is necessary to prepare a kind of function admirable, can realize weld seam gold
Belong to intensity and high low-temperature flexibility, while there is smooth welding bead, the fluorine alkaline type fysed flux of the good removability of slag.
Invention content
In view of the deficiencies of the prior art, the present invention provides a kind of high alkalinity fluorine alkaline type fysed flux peculiar to vessel and its preparation sides
Method；The fysed flux of the present invention is that a kind of welding process is stable, weld metal high strength, low-temperature flexibility is high, composition of weld line and group
Knit uniformly, welding bead surface is smooth, the removability of slag can good fluorine alkaline type fysed flux, meet deck of boat steel welding technology to function admirable
Solder flux pressing needs.
A kind of high alkalinity fluorine alkaline type fysed flux peculiar to vessel is by mass percentage containing ingredient：CaF2：30~40%,
MgO：14~20%, Al2O3：15~20%, SiO2：15~20%, MnO：4~10%, TiO2：2~15%；Wherein, by quality
Than CaF2: the mass percent summation of MgO >=1.5, each component is 100%.
The high alkalinity fluorine alkaline type fysed flux peculiar to vessel, the tensile strength intensity of the welding point obtained by postwelding is 687~
715MPA, (- 40 DEG C) of low-temperature impact work are 67~83J.
The preparation method of the high alkalinity fluorine alkaline type fysed flux peculiar to vessel of the present invention, includes the following steps：
Step 1, melting：
(1) proportioning for pressing high alkalinity fluorine alkaline type fysed flux peculiar to vessel, weighs each component raw materials of Ca F2、MgO、Al2O3、SiO2、
MnO and TiO2, each raw material is uniformly mixed；
(2) by uniformly mixed raw material, smelted product is made in heat preservation >=20min after melting；Wherein, smelting temperature >=
1350℃；
(3) by smelted product water quenching, glassy state semi-finished product are made；
Step 2, high-temperature roasting：
By glassy state semi-finished product, 3~5h is roasted at 700~900 DEG C, and product of roasting is made；
Step 3, it is crushed：
Product of roasting is broken, sieving, granularity are that the particle of 12~120 mesh is high alkalinity fluorine alkaline type melting weldering peculiar to vessel
Agent.
The preparation method of above-mentioned high alkalinity fluorine alkaline type fysed flux peculiar to vessel, wherein：
In the step 1, each raw material is put into mixing equipment, by stirring to obtain uniform powder.
In the step 1, melting uses graphite crucible.
In the step 2, high-temperature roasting uses Muffle furnace.
In the step 2, the carbon dust in solder flux is eliminated by high-temperature roasting.
The high alkalinity fluorine alkaline type fysed flux peculiar to vessel, before welding need to be at 200~400 DEG C, drying >=2h.Drying uses
Drying box is dried.
A kind of high alkalinity fluorine alkaline type fysed flux peculiar to vessel and preparation method thereof of the present invention is compared with prior art, beneficial
Effect：
The present invention is prepared for a kind of New Marine fluorine alkaline type fysed flux, which has good chemical composition uniform
Property, moisture absorption is low (storage convenient), can be well matched with low-carbon and low-alloy ship steel and obtain uniform composition of weld line, good
Weld strength and low-temperature flexibility；Weld metal ingredient is uniform, and metal welding bead is smooth, and the removability of slag is good, through ray detection zero defect,
It disclosure satisfy that the technological requirement of welding.
Specific implementation mode
Embodiment 1
A kind of high alkalinity fluorine alkaline type fysed flux peculiar to vessel is by mass percentage containing ingredient：CaF2：35%, MgO：
17%, Al2O3：20%, SiO2：20%, MnO：5%, TiO2：3%.
The preparation method of the high alkalinity fluorine alkaline type fysed flux peculiar to vessel of the present invention, includes the following steps：
Step 1, melting：
(1) proportioning for pressing high alkalinity fluorine alkaline type fysed flux peculiar to vessel, weighs each component raw materials of Ca F2、MgO、Al2O3、SiO2、
MnO and TiO2, each raw material is put into mixing equipment, is stirred by mixing；
(2) by uniformly mixed raw material, 20min is kept the temperature after melting in graphite crucible, smelted product is made；Wherein, it melts
It is 1390 DEG C to refine temperature；
(3) by smelted product water quenching, glassy state semi-finished product are made；
Step 2, high-temperature roasting：
By glassy state semi-finished product, 2h is roasted at 850 DEG C using Muffle furnace, product of roasting is made, is removed by high-temperature roasting
Carbon dust in solder flux；
Step 3, it is crushed：
Product of roasting is broken, sieving, granularity are that the particle of 12~120 mesh is high alkalinity fluorine alkaline type melting weldering peculiar to vessel
Agent.
High alkalinity fluorine alkaline type fysed flux peculiar to vessel manufactured in the present embodiment uses drying box at 200 DEG C before welding, dry
2h；Then, the fysed flux cooperation low-carbon type welding wire after drying welds EH36 grades of ship steels, the welding obtained by postwelding
Joint performance index is as follows：Tensile strength intensity is 715MPA, and (- 40 DEG C) of low-temperature impact work is 69J, and composition of weld line is uniform, weldering
Road is smooth, and the removability of slag can be good.
Embodiment 2
A kind of high alkalinity fluorine alkaline type fysed flux peculiar to vessel is by mass percentage containing ingredient：CaF2：34%, MgO：
16%, Al2O3：20%, SiO2：20%, MnO：5%, TiO2：5%.
The preparation method of the high alkalinity fluorine alkaline type fysed flux peculiar to vessel of the present invention, includes the following steps：
Step 1, melting：
(1) proportioning for pressing high alkalinity fluorine alkaline type fysed flux peculiar to vessel, weighs each component raw materials of Ca F2、MgO、Al2O3、SiO2、
MnO and TiO2, each raw material is put into mixing equipment, is stirred by mixing；
(2) by uniformly mixed raw material, 25min is kept the temperature after melting in graphite crucible, smelted product is made；Wherein, it melts
It is 1380 DEG C to refine temperature；
(3) by smelted product water quenching, glassy state semi-finished product are made；
Step 2, high-temperature roasting：
By glassy state semi-finished product, 5h is roasted at 700 DEG C using Muffle furnace, product of roasting is made, is removed by high-temperature roasting
Carbon dust in solder flux；
Step 3, it is crushed：
Product of roasting is broken, sieving, granularity are that the particle of 12~120 mesh is high alkalinity fluorine alkaline type melting weldering peculiar to vessel
Agent.
High alkalinity fluorine alkaline type fysed flux peculiar to vessel manufactured in the present embodiment uses drying box at 200 DEG C before welding, dry
2h；Then, the fysed flux cooperation low-carbon type welding wire after drying welds EH36 grades of ship steels, welds the weldering obtained by postwelding
It is as follows to connect joint performance index：Tensile strength intensity is 708MPA, and (- 40 DEG C) of low-temperature impact work is 83J, and composition of weld line is uniform,
Welding bead is smooth, and the removability of slag can be good.
Embodiment 3
A kind of high alkalinity fluorine alkaline type fysed flux peculiar to vessel is by mass percentage containing ingredient：CaF2：33%, MgO：
15%, Al2O3：20%, SiO2：17%, MnO：5%, TiO2：10%.
The preparation method of the high alkalinity fluorine alkaline type fysed flux peculiar to vessel of the present invention, includes the following steps：
Step 1, melting：
(1) proportioning for pressing high alkalinity fluorine alkaline type fysed flux peculiar to vessel, weighs each component raw materials of Ca F2、MgO、Al2O3、SiO2、
MnO and TiO2, each raw material is put into mixing equipment, is stirred by mixing；
(2) by uniformly mixed raw material, 30min is kept the temperature after melting in graphite crucible, smelted product is made；Wherein, it melts
It is 1360 DEG C to refine temperature；
(3) by smelted product water quenching, glassy state semi-finished product are made；
Step 2, high-temperature roasting：
By glassy state semi-finished product, 2h is roasted at 850 DEG C using Muffle furnace, product of roasting is made, is removed by high-temperature roasting
Carbon dust in solder flux；
Step 3, it is crushed：
Product of roasting is broken, sieving, granularity are that the particle of 12~120 mesh is high alkalinity fluorine alkaline type melting weldering peculiar to vessel
Agent.
High alkalinity fluorine alkaline type fysed flux peculiar to vessel manufactured in the present embodiment uses drying box at 200 DEG C before welding, dry
2h；Then, the fysed flux cooperation low-carbon type welding wire after drying welds EH36 grades of ship steels, the welding obtained by postwelding
Joint performance index is as follows：Tensile strength intensity is 695MPA, and (- 40 DEG C) of low-temperature impact work is 70J, and composition of weld line is uniform, weldering
Road is smooth, and the removability of slag can be good.
Embodiment 4
A kind of high alkalinity fluorine alkaline type fysed flux peculiar to vessel is by mass percentage containing ingredient：CaF2：32%, MgO：
14%, Al2O3：19%, SiO2：16%, MnO：4%, TiO2：15%.
The preparation method of the high alkalinity fluorine alkaline type fysed flux peculiar to vessel of the present invention, includes the following steps：
Step 1, melting：
(1) proportioning for pressing high alkalinity fluorine alkaline type fysed flux peculiar to vessel, weighs each component raw materials of Ca F2、MgO、Al2O3、SiO2、
MnO and TiO2, each raw material is put into mixing equipment, is stirred by mixing；
(2) by uniformly mixed raw material, 22min is kept the temperature after melting in graphite crucible, smelted product is made；Wherein, it melts
It is 1390 DEG C to refine temperature；
(3) by smelted product water quenching, glassy state semi-finished product are made；
Step 2, high-temperature roasting：
By glassy state semi-finished product, 2h is roasted at 900 DEG C using Muffle furnace, product of roasting is made, is removed by high-temperature roasting
Carbon dust in solder flux；
Step 3, it is crushed：
Product of roasting is broken, sieving, granularity are that the particle of 12~120 mesh is high alkalinity fluorine alkaline type melting weldering peculiar to vessel
Agent.
High alkalinity fluorine alkaline type fysed flux peculiar to vessel manufactured in the present embodiment uses drying box at 400 DEG C before welding, dry
2h；Then, the fysed flux cooperation low-carbon type welding wire after drying welds EH36 grades of ship steels, the welding obtained by postwelding
Joint performance index is as follows：Tensile strength intensity is 687MPA, and (- 40 DEG C) of low-temperature impact work is 67J, and composition of weld line is uniform, weldering
Road is smooth, and the removability of slag can be good.
Claims (4)
1. a kind of high alkalinity fluorine alkaline type fysed flux peculiar to vessel, which is characterized in that the fysed flux contains ingredient by quality percentage
Than for：CaF2：30~40%, MgO：14~20%, Al2O3：15~20%, SiO2：15~20%, MnO：4~10%, TiO2：2
~15%；Wherein, in mass ratio, CaF2：The mass percent summation of MgO >=1.5, each component is 100%.
2. a kind of high alkalinity fluorine alkaline type fysed flux peculiar to vessel according to claim 1, which is characterized in that described peculiar to vessel high-alkali
Fluorine alkaline type fysed flux is spent, the tensile strength intensity of the welding point obtained by postwelding is 687~715MPa, low-temperature impact work (- 40
DEG C) it is 67~83J.
3. the preparation method of high alkalinity fluorine alkaline type fysed flux peculiar to vessel as claimed in claim 1 or 2, which is characterized in that including such as
Lower step：
Step 1, melting：
(1) proportioning for pressing high alkalinity fluorine alkaline type fysed flux peculiar to vessel, weighs each component raw materials of Ca F2、MgO、Al2O3、SiO2, MnO and
TiO2, each raw material is uniformly mixed；
(2) by uniformly mixed raw material, smelted product is made in heat preservation >=20min after melting；Wherein, smelting temperature >=1350 DEG C；
(3) by smelted product water quenching, glassy state semi-finished product are made；
Step 2, high-temperature roasting：
By glassy state semi-finished product, 3~5h is roasted at 700~900 DEG C, and product of roasting is made；
Step 3, it is crushed：
Product of roasting is broken, sieving, granularity are that the particle of 12~120 mesh is high alkalinity fluorine alkaline type fysed flux peculiar to vessel.
4. the preparation method of high alkalinity fluorine alkaline type fysed flux peculiar to vessel according to claim 3, which is characterized in that the ship
, before welding need to be at 200~400 DEG C with high alkalinity fluorine alkaline type fysed flux, drying >=2h.
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| CN201810703962.1A CN108526763A (en) | 2018-06-30 | 2018-06-30 | A kind of high alkalinity fluorine alkaline type fysed flux peculiar to vessel and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110293336A (en) * | 2019-06-28 | 2019-10-01 | 东北大学 | A kind of fluorine aluminium titanium-type fysed flux peculiar to vessel and preparation method thereof |
| CN110293334A (en) * | 2019-06-28 | 2019-10-01 | 东北大学 | A kind of high alumina low titanium fluorine alkaline type sintered flux peculiar to vessel and preparation method thereof |
| CN110293335A (en) * | 2019-06-28 | 2019-10-01 | 东北大学 | A kind of high fluorine aluminium titanium-type fysed flux of low titanium peculiar to vessel and preparation method thereof |
| CN114643437A (en) * | 2022-05-20 | 2022-06-21 | 东北大学 | Fluorine-free smelting flux and preparation method and application thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110293336A (en) * | 2019-06-28 | 2019-10-01 | 东北大学 | A kind of fluorine aluminium titanium-type fysed flux peculiar to vessel and preparation method thereof |
| CN110293334A (en) * | 2019-06-28 | 2019-10-01 | 东北大学 | A kind of high alumina low titanium fluorine alkaline type sintered flux peculiar to vessel and preparation method thereof |
| CN110293335A (en) * | 2019-06-28 | 2019-10-01 | 东北大学 | A kind of high fluorine aluminium titanium-type fysed flux of low titanium peculiar to vessel and preparation method thereof |
| CN110293335B (en) * | 2019-06-28 | 2021-06-29 | 东北大学 | Marine low-titanium high-fluorine aluminum titanium type smelting flux and preparation method thereof |
| CN110293334B (en) * | 2019-06-28 | 2021-06-29 | 东北大学 | Marine high-aluminum low-titanium fluorine-alkali type sintered flux and preparation method thereof |
| CN114643437A (en) * | 2022-05-20 | 2022-06-21 | 东北大学 | Fluorine-free smelting flux and preparation method and application thereof |
| CN114643437B (en) * | 2022-05-20 | 2022-07-22 | 东北大学 | Fluorine-free smelting flux and preparation method and application thereof |
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Application publication date: 20180914 |