CN108788529A - A kind of high alkalinity fluorine alkaline type sintered flux peculiar to vessel and preparation method thereof - Google Patents
A kind of high alkalinity fluorine alkaline type sintered flux peculiar to vessel and preparation method thereof Download PDFInfo
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- CN108788529A CN108788529A CN201810704748.8A CN201810704748A CN108788529A CN 108788529 A CN108788529 A CN 108788529A CN 201810704748 A CN201810704748 A CN 201810704748A CN 108788529 A CN108788529 A CN 108788529A
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- vessel
- high alkalinity
- alkaline type
- sintered flux
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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
- B23K35/362—Selection of compositions of fluxes
-
- 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
A kind of high alkalinity fluorine alkaline type sintered flux peculiar to vessel and preparation method thereof, solder flux contains ingredient and is by mass percentage：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) composition proportion for pressing high alkalinity fluorine alkaline type sintered flux peculiar to vessel after weighing each raw material, is uniformly mixed, and dry-mixed raw material is made, then waterglass and dry-mixed raw material are carried out wet mixing, wet mixed feed is made；2) wet mixed feed be granulated obtaining low temperature drying after semi-finished product；3) semi-finished product are sintered, high alkalinity fluorine alkaline type sintered flux peculiar to vessel is made；Present invention high alkalinity fluorine alkaline type sintered flux peculiar to vessel, the property of welded joint index obtained by postwelding are as follows：Tensile strength intensity is 650~733MPa, and (- 40 DEG C) of low-temperature impact work is 62~86J.
Description
Technical field
The invention belongs to welding technology field, specifically a kind of high alkalinity fluorine alkaline type sintered 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 fysed flux, sintered flux is with sintered flux with low energy consumption, basicity adjustable range
Greatly, easy deoxidation, the advantages that being easy to alloying, being readily produced.Acidic oxide content is less in fluorine alkaline type solder flux, solder flux oxidisability
Weak, anti-stomata ability is strong, is conducive to the weld metal for obtaining high/low temperature toughness.To meet weldering of the industrialized production to function admirable
The pressing needs of agent, it is necessary to prepare a kind of function admirable, can realize weld metal intensity and high low-temperature flexibility, have simultaneously
There are smooth welding bead, the fluorine alkaline type sintered 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 sintered flux peculiar to vessel and its preparation sides
Method；The present invention meets pressing needs of the deck of boat steel welding technology to the solder flux of function admirable, have developed a kind of welding process it is stable,
Weld metal high strength, low-temperature flexibility is high, composition of weld line and even tissue, welding bead surface are smooth, the removability of slag can good fluorine alkali
Type sintered flux.
A kind of high alkalinity fluorine alkaline type sintered 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 sintered flux peculiar to vessel, the property of welded joint index obtained by postwelding are as follows：Tension is strong
Degree is 660~740MPa, and (- 40 DEG C) of low-temperature impact work is 63~87J.
The preparation method of the high alkalinity fluorine alkaline type sintered flux peculiar to vessel of the present invention, includes the following steps：
Step 1, batch mixing：
(1) composition proportion for pressing high alkalinity fluorine alkaline type sintered flux peculiar to vessel after weighing each raw material, is uniformly mixed, and is made dry
Mixed raw material；
(2) in mass ratio, waterglass：Waterglass and dry-mixed raw material are carried out wet mixing, are made by dry-mixed raw material=20~30%
Wet mixed feed；
Step 2, it is granulated：
(1) wet mixed feed is once granulated, it is semi-finished product to choose the particle that granularity is 16~50 mesh；
(2) granularity is more than to the particle of 50 mesh, is crushed, granularity is less than to the particle of 16 mesh, then is granulated, is returned
Step 2 (2), until whole particles become semi-finished product；
(3) by semi-finished product in 200~400 DEG C of low temperature dryings；
Step 3, it is sintered：
Semi-finished product are sintered, sintering temperature is 300~700 DEG C, 2~5h of sintering time, and high alkalinity fluorine peculiar to vessel is made
Alkaline type sintered flux.
The preparation method of above-mentioned high alkalinity fluorine alkaline type sintered flux peculiar to vessel, wherein：
In the step 1 (1), each raw material is put into mixing equipment, is stirred evenly.
In the step 1 (2), waterglass is sodium silicate and/or potassium water glass.
In the step 2 (3), drying uses tube furnace.
In the step 2 (3), 1~3h of drying time.
The high alkalinity fluorine alkaline type sintered flux peculiar to vessel, before welding need to be at 300~500 DEG C, drying >=2h.Drying is adopted
It is dried with drying box.
The high alkalinity fluorine alkaline type sintered flux peculiar to vessel and preparation method thereof of the present invention, compared with prior art, advantageous effect
For：
The present invention is prepared for a kind of New Marine fluorine alkaline type sintered flux, can be well matched with low-carbon and low-alloy ship steel
Obtain uniform composition of weld line, good weld strength and low-temperature flexibility.Weld metal welding bead is smooth, and the removability of slag is good, through penetrating
Line detects zero defect, disclosure satisfy that the technological requirement of welding.
Specific implementation mode
Embodiment 1
A kind of high alkalinity fluorine alkaline type sintered 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 sintered flux peculiar to vessel of the present invention, includes the following steps：
Step 1, batch mixing：
(1) composition proportion for pressing high alkalinity fluorine alkaline type sintered flux peculiar to vessel is put into mixing equipment after weighing each raw material, stirs
It mixes uniformly, dry-mixed raw material is made；
(2) in mass ratio, waterglass：Waterglass and dry-mixed raw material are carried out wet mixing, wet mixing are made by dry-mixed raw material=20%
Material；Wherein, waterglass is sodium silicate；
Step 2, it is granulated：
(1) wet mixed feed is once granulated, it is semi-finished product to choose the particle that granularity is 16~50 mesh；
(2) granularity is more than to the particle of 50 mesh, is crushed, granularity is less than to the particle of 16 mesh, then is granulated, is returned
Step 2 (2), until whole particles become semi-finished product；
(3) by semi-finished product in 300 DEG C of low temperature drying 2h；
Step 3, it is sintered：
Semi-finished product are sintered, sintering temperature is 400 DEG C, sintering time 2.5h, and high alkalinity fluorine alkaline type peculiar to vessel is made and burns
Tie solder flux.
High alkalinity fluorine alkaline type sintered flux peculiar to vessel manufactured in the present embodiment uses drying box at 300 DEG C before welding, drying
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 is 660MPa, and (- 40 DEG C) of low-temperature impact work is 63J, and composition of weld line is uniform, welding bead light
Sliding, the removability of slag can be good.
Embodiment 2
A kind of high alkalinity fluorine alkaline type sintered 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 sintered flux peculiar to vessel of the present invention, includes the following steps：
Step 1, batch mixing：
(1) composition proportion for pressing high alkalinity fluorine alkaline type sintered flux peculiar to vessel is put into mixing equipment after weighing each raw material, stirs
It mixes uniformly, dry-mixed raw material is made；
(2) in mass ratio, waterglass：Waterglass and dry-mixed raw material are carried out wet mixing, wet mixing are made by dry-mixed raw material=25%
Material；Wherein, waterglass is sodium silicate and/or potassium water glass；
Step 2, it is granulated：
(1) wet mixed feed is once granulated, it is semi-finished product to choose the particle that granularity is 16~50 mesh；
(2) granularity is more than to the particle of 50 mesh, is crushed, granularity is less than to the particle of 16 mesh, then is granulated, is returned
Step 2 (2), until whole particles become semi-finished product；
(3) by semi-finished product in 400 DEG C of low temperature drying 3h；
Step 3, it is sintered：
Semi-finished product are sintered, sintering temperature is 500 DEG C, sintering time 2h, and high alkalinity fluorine alkaline type sintering peculiar to vessel is made
Solder flux.
High alkalinity fluorine alkaline type sintered flux peculiar to vessel manufactured in the present embodiment uses drying box 300~500 before welding
DEG C, drying >=2h；Then, the fysed flux cooperation low-carbon type welding wire after drying welds EH36 grades of ship steels, postwelding
The property of welded joint index of gained is as follows：Tensile strength is 680MPa, and (- 40 DEG C) of low-temperature impact work is 81J, and composition of weld line is equal
Even, welding bead is smooth, and the removability of slag can be good.
Embodiment 3
A kind of high alkalinity fluorine alkaline type sintered 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 sintered flux peculiar to vessel of the present invention, includes the following steps：
Step 1, batch mixing：
(1) composition proportion for pressing high alkalinity fluorine alkaline type sintered flux peculiar to vessel is put into mixing equipment after weighing each raw material, stirs
It mixes uniformly, dry-mixed raw material is made；
(2) in mass ratio, waterglass：Waterglass and dry-mixed raw material are carried out wet mixing, wet mixing are made by dry-mixed raw material=30%
Material；Wherein, waterglass is sodium silicate and/or potassium water glass；
Step 2, it is granulated：
(1) wet mixed feed is once granulated, it is semi-finished product to choose the particle that granularity is 16~50 mesh；
(2) granularity is more than to the particle of 50 mesh, is crushed, granularity is less than to the particle of 16 mesh, then is granulated, is returned
Step 2 (2), until whole particles become semi-finished product；
(3) by semi-finished product in 200 DEG C of low temperature drying 3h；
Step 3, it is sintered：
Semi-finished product are sintered, sintering temperature is 700 DEG C, sintering time 3h, and high alkalinity fluorine alkaline type sintering peculiar to vessel is made
Solder flux.
High alkalinity fluorine alkaline type sintered flux peculiar to vessel manufactured in the present embodiment uses drying box at 300 DEG C before welding, drying
4h；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 is 720MPa, and (- 40 DEG C) of low-temperature impact work is 84J, and composition of weld line is uniform, welding bead light
Sliding, the removability of slag can be good.
Embodiment 4
A kind of high alkalinity fluorine alkaline type sintered flux peculiar to vessel is by mass percentage containing ingredient：：CaF2：32%, MgO：
14%, Al2O3：19%, SiO216%, MnO：4%, TiO2：15%.
The preparation method of the high alkalinity fluorine alkaline type sintered flux peculiar to vessel of the present invention, includes the following steps：
Step 1, batch mixing：
(1) composition proportion for pressing high alkalinity fluorine alkaline type sintered flux peculiar to vessel is put into mixing equipment after weighing each raw material, stirs
It mixes uniformly, dry-mixed raw material is made；
(2) in mass ratio, waterglass：Waterglass and dry-mixed raw material are carried out wet mixing, wet mixing are made by dry-mixed raw material=22%
Material；Wherein, waterglass is sodium silicate and/or potassium water glass；
Step 2, it is granulated：
(1) wet mixed feed is once granulated, it is semi-finished product to choose the particle that granularity is 16~50 mesh；
(2) granularity is more than to the particle of 50 mesh, is crushed, granularity is less than to the particle of 16 mesh, then is granulated, is returned
Step 2 (2), until whole particles become semi-finished product；
(3) by semi-finished product in 400 DEG C of low temperature drying 1h；
Step 3, it is sintered：
Semi-finished product are sintered, sintering temperature is 300 DEG C, sintering time 5h, and high alkalinity fluorine alkaline type sintering peculiar to vessel is made
Solder flux.
High alkalinity fluorine alkaline type sintered flux peculiar to vessel manufactured in the present embodiment uses drying box at 500 DEG C before welding, drying
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 is 740MPa, and (- 40 DEG C) of low-temperature impact work is 87J, and composition of weld line is uniform, welding bead light
Sliding, the removability of slag can be good.
Claims (6)
1. a kind of high alkalinity fluorine alkaline type sintered flux peculiar to vessel, which is characterized in that it contains ingredient and is by mass percentage：CaF2：30
~40%, MgO：14~20%, Al2O3：15~20%, SiO2：15~20%, MnO：4~10%, TiO2：2~15%；Its
In, 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 sintered flux peculiar to vessel according to claim 1, which is characterized in that described peculiar to vessel high-alkali
Fluorine alkaline type sintered flux is spent, the property of welded joint index obtained by postwelding is as follows：Tensile strength intensity is 660~740MPa, low
(- 40 DEG C) of warm ballistic work is 63~87J.
3. the preparation method of high alkalinity fluorine alkaline type sintered flux peculiar to vessel described in claim 1, which is characterized in that including walking as follows
Suddenly：
Step 1, batch mixing：
(1) composition proportion for pressing high alkalinity fluorine alkaline type sintered flux peculiar to vessel after weighing each raw material, is uniformly mixed, dry-mixed original is made
Material；
(2) in mass ratio, waterglass：Waterglass and dry-mixed raw material are carried out wet mixing, wet mixing are made by dry-mixed raw material=20~30%
Material；
Step 2, it is granulated：
(1) wet mixed feed is once granulated, it is semi-finished product to choose the particle that granularity is 16~50 mesh；
(2) granularity is more than to the particle of 50 mesh, is crushed, granularity is less than to the particle of 16 mesh, then is granulated, return to step
2 (2), until whole particles become semi-finished product；
(3) by semi-finished product in 200~400 DEG C of low temperature dryings；
Step 3, it is sintered：
Semi-finished product are sintered, sintering temperature is 300~700 DEG C, 2~5h of sintering time, and high alkalinity fluorine alkaline type peculiar to vessel is made
Sintered flux.
4. the preparation method of high alkalinity fluorine alkaline type sintered flux peculiar to vessel according to claim 3, which is characterized in that the step
In rapid 1 (2), waterglass is sodium silicate and/or potassium water glass.
5. the preparation method of high alkalinity fluorine alkaline type sintered flux peculiar to vessel according to claim 3, which is characterized in that the step
In rapid 2 (3), 1~3h of drying time.
6. the preparation method of high alkalinity fluorine alkaline type sintered flux peculiar to vessel according to claim 3, which is characterized in that described
High alkalinity fluorine alkaline type sintered flux, before welding need to be at 300~500 DEG C, drying >=2h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810704748.8A CN108788529B (en) | 2018-06-30 | 2018-06-30 | Marine high-alkalinity fluorine-alkali type sintered flux and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810704748.8A CN108788529B (en) | 2018-06-30 | 2018-06-30 | Marine high-alkalinity fluorine-alkali type sintered flux and preparation method thereof |
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| CN108788529A true CN108788529A (en) | 2018-11-13 |
| CN108788529B CN108788529B (en) | 2020-10-16 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| CN110293333A (en) * | 2019-06-28 | 2019-10-01 | 东北大学 | One kind high fluorine aluminium titanium-type sintered flux 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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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| CN110293333A (en) * | 2019-06-28 | 2019-10-01 | 东北大学 | One kind high fluorine aluminium titanium-type sintered flux 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 |
| CN110293333B (en) * | 2019-06-28 | 2022-02-11 | 东北大学 | Marine high-fluorine aluminum titanium 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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