CN108526760A - Fluorine-type sintered flux and preparation method thereof in manganese in one kind high silicon peculiar to vessel - Google Patents
Fluorine-type sintered flux and preparation method thereof in manganese in one kind high silicon peculiar to vessel Download PDFInfo
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- CN108526760A CN108526760A CN201810703937.3A CN201810703937A CN108526760A CN 108526760 A CN108526760 A CN 108526760A CN 201810703937 A CN201810703937 A CN 201810703937A CN 108526760 A CN108526760 A CN 108526760A
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- manganese
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- fluorine
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- high silicon
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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
Fluorine-type sintered flux and preparation method thereof in manganese in one kind high silicon peculiar to vessel, solder flux contains ingredient and is by mass percentage：SiO2：38~42%, MnO：28~32%, CaF2：27~32%；Wherein, in mass ratio, 0.9≤MnO: SiO2≤ 1.1, the mass percent summation of each component is 100%；Preparation method：1) composition proportion for pressing fluorine-type sintered flux in manganese in high silicon 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, fluorine-type sintered flux in manganese is made in high silicon peculiar to vessel；Fluorine-type sintered flux in manganese in the present invention high silicon peculiar to vessel, the property of welded joint index obtained by postwelding are as follows：Tensile strength is 629~728MPa, and (40 DEG C) of low-temperature impact work is 61~83J.
Description
Technical field
The invention belongs to welding technology field, fluorine-type sintered flux and its preparation side in manganese in specifically a kind of high silicon peculiar to vessel
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.SiO in fluorine-type solder flux in manganese in high silicon2Content is high, the oriented weldering of solder flux
The effect of transition silicon in seam.Silicon can improve the deoxidizing capacity of weld metal, improve the intensity and hardness of weld metal.MnO contains
Measure the effect of transition manganese in the oriented weld metal of higher solder flux.Manganese can improve deoxidizing capacity in weld seam, reduce the crisp of steel
Property, mitigate detrimental effect of the sulphur to steel.CaF2It is used as slag former and diluent in solder flux, increases the mobility of solder flux, it can be with
Remove the hydrogen in solder flux.To meet pressing needs of the industrialized production to the solder flux of function admirable, it is necessary to prepare a kind of performance
It is excellent, can realize weld metal high intensity and high rigidity, while welding arc stablility, and there is smooth welding bead, well
Slag detachability high silicon in fluorine-type sintered flux in manganese.
Invention content
In view of the deficiencies of the prior art, the present invention provides fluorine-type sintered flux and its preparations in manganese in a kind of high silicon peculiar to vessel
Method；The present invention meets pressing needs of the deck of boat steel welding technology to the solder flux of function admirable, and it is steady to have developed a kind of welding process
It is fixed, 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 silicon
Manganese type sintered flux.
Fluorine-type sintered flux in manganese in a kind of high silicon peculiar to vessel is by mass percentage containing ingredient：：SiO2：38~
42%, MnO：28~32%, CaF2：27~32%；Wherein, in mass ratio, 0.9≤MnO: SiO2≤ 1.1, the quality of each component
Percentage summation is 100%.
Fluorine-type sintered flux in manganese in the high silicon peculiar to vessel, the property of welded joint index obtained by postwelding are as follows：Tension
Intensity is 629~728MPa, and (- 40 DEG C) of low-temperature impact work is 61~83J.
In the high silicon peculiar to vessel of the present invention in manganese fluorine-type sintered flux preparation method, include the following steps：
Step 1, batch mixing：
(1) composition proportion for pressing fluorine-type sintered flux in manganese in high silicon peculiar to vessel after weighing each raw material, is uniformly mixed, is made
Dry-mixed raw material；
(2) in mass ratio, waterglass: waterglass and dry-mixed raw material are carried out wet mixing, is 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 manganese in high silicon peculiar to vessel is made
Middle fluorine-type sintered flux.
In above-mentioned high silicon peculiar to vessel in manganese fluorine-type sintered flux preparation method, 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.
Fluorine-type sintered flux in manganese in the high silicon peculiar to vessel, before welding need to be at 300~500 DEG C, drying >=2h.Drying
It is dried using drying box.
Fluorine-type sintered flux and preparation method thereof in manganese in the high silicon peculiar to vessel of the present invention, compared with prior art, beneficial to effect
Fruit is：
The present invention is prepared for a kind of New Marine silicomanganese 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
Fluorine-type sintered flux in manganese in a kind of high silicon peculiar to vessel is by mass percentage containing ingredient：：SiO2：42%,
MnO：30%, CaF2：28%.
In the high silicon peculiar to vessel of the present invention in manganese fluorine-type sintered flux preparation method, include the following steps：
Step 1, batch mixing：
(1) composition proportion for pressing fluorine-type sintered flux in manganese in high silicon peculiar to vessel is put into mixing equipment after weighing each raw material,
It stirs evenly, dry-mixed raw material is made；
(2) in mass ratio, waterglass: waterglass and dry-mixed raw material are carried out wet mixing, wet mixing is 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 350 DEG C of low temperature drying 2h；
Step 3, it is sintered：
Semi-finished product are sintered, sintering temperature is 550 DEG C, sintering time 3h, and fluorine-type burning in manganese is made in high silicon peculiar to vessel
Tie solder flux.
Fluorine-type sintered flux in manganese in high silicon peculiar to vessel manufactured in the present embodiment uses drying box at 300 DEG C before welding, dries
Dry 2h；Then, the sintered flux cooperation low-carbon type welding wire after drying welds EH36 grades of ship steels, the weldering obtained by postwelding
It is as follows to connect joint performance index：Tensile strength intensity is 655MPa, and (- 40 DEG C) of low-temperature impact work is 65J, and composition of weld line is uniform,
Welding bead is smooth, and the removability of slag can be good.
Embodiment 2
Fluorine-type sintered flux in manganese in a kind of high silicon peculiar to vessel is by mass percentage containing ingredient：：SiO2：41%,
MnO：31%, CaF2：28%.
In the high silicon peculiar to vessel of the present invention in manganese fluorine-type sintered flux preparation method, include the following steps：
Step 1, batch mixing：
(1) composition proportion for pressing fluorine-type sintered flux in manganese in high silicon peculiar to vessel is put into mixing equipment after weighing each raw material,
It stirs evenly, dry-mixed raw material is made；
(2) in mass ratio, waterglass: waterglass and dry-mixed raw material are carried out wet mixing, wet mixing is made by dry-mixed raw material=20%
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 350 DEG C of low temperature drying 2h；
Step 3, it is sintered：
Semi-finished product are sintered, sintering temperature is 550 DEG C, sintering time 3h, and fluorine-type burning in manganese is made in high silicon peculiar to vessel
Tie solder flux.
Fluorine-type sintered flux in manganese in high silicon peculiar to vessel manufactured in the present embodiment uses drying box 300~500 before welding
DEG C, drying >=2h；Then, the sintered 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 intensity is 675MPa, and (- 40 DEG C) of low-temperature impact work is 72J, weld seam at
Divide uniformly, welding bead is smooth, and the removability of slag can be good.
Embodiment 3
Fluorine-type sintered flux in manganese in a kind of high silicon peculiar to vessel is by mass percentage containing ingredient：：SiO2：39%,
MnO：32%, CaF2：29%.
In the high silicon peculiar to vessel of the present invention in manganese fluorine-type sintered flux preparation method, include the following steps：
Step 1, batch mixing：
(1) composition proportion for pressing fluorine-type sintered flux in manganese in high silicon peculiar to vessel is put into mixing equipment after weighing each raw material,
It stirs evenly, dry-mixed raw material is made；
(2) in mass ratio, waterglass: waterglass and dry-mixed raw material are carried out wet mixing, wet mixing is made by dry-mixed raw material=20%
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 350 DEG C of low temperature drying 22h；
Step 3, it is sintered：
Semi-finished product are sintered, sintering temperature is 550 DEG C, sintering time 3h, and fluorine-type burning in manganese is made in high silicon peculiar to vessel
Tie solder flux.
Fluorine-type sintered flux in manganese in high silicon peculiar to vessel manufactured in the present embodiment uses drying box at 300 DEG C before welding, dries
Dry 4h；Then, the sintered flux cooperation low-carbon type welding wire after drying welds EH36 grades of ship steels, the weldering obtained by postwelding
It is as follows to connect joint performance index：Tensile strength intensity is 731MPa, and (- 40 DEG C) of low-temperature impact work is 79J, and composition of weld line is uniform,
Welding bead is smooth, and the removability of slag can be good.
Embodiment 4
Fluorine-type sintered flux in manganese in a kind of high silicon peculiar to vessel is by mass percentage containing ingredient：：SiO2：38%,
MnO：32%, CaF2：30%.
In the high silicon peculiar to vessel of the present invention in manganese fluorine-type sintered flux preparation method, include the following steps：
Step 1, batch mixing：
(1) composition proportion for pressing fluorine-type sintered flux in manganese in high silicon peculiar to vessel is put into mixing equipment after weighing each raw material,
It stirs evenly, dry-mixed raw material is made；
(2) in mass ratio, waterglass: waterglass and dry-mixed raw material are carried out wet mixing, wet mixing is made by dry-mixed raw material=20%
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 350 DEG C of low temperature drying 2h；
Step 3, it is sintered：
Semi-finished product are sintered, sintering temperature is 550 DEG C, sintering time 3h, and fluorine-type burning in manganese is made in high silicon peculiar to vessel
Tie solder flux.
Fluorine-type sintered flux in manganese in high silicon peculiar to vessel manufactured in the present embodiment uses drying box at 500 DEG C before welding, dries
Dry 2h；Then, the sintered flux cooperation low-carbon type welding wire after drying welds EH36 grades of ship steels, the weldering obtained by postwelding
It is as follows to connect joint performance index：Tensile strength intensity is 720MPa, and (- 40 DEG C) of low-temperature impact work is 80J, and composition of weld line is uniform,
Welding bead is smooth, and the removability of slag can be good.
Claims (6)
1. fluorine-type sintered flux in manganese in a kind of high silicon peculiar to vessel, which is characterized in that it contains ingredient and is by mass percentage：SiO2：
38~42%, MnO：28~32%, CaF2：27~32%；Wherein, in mass ratio, 0.9≤MnO：SiO2≤ 1.1, each component
Mass percent summation is 100%.
2. fluorine-type sintered flux in manganese in one kind high silicon peculiar to vessel according to claim 1, which is characterized in that the height peculiar to vessel
Fluorine-type sintered flux in manganese in silicon, the property of welded joint index obtained by postwelding are as follows：Tensile strength be tensile strength be 629~
728MPa, (- 40 DEG C) of low-temperature impact work are 61~83J.
3. in high silicon peculiar to vessel described in claim 1 in manganese fluorine-type sintered flux preparation method, which is characterized in that including as follows
Step：
Step 1, batch mixing：
(1) composition proportion for pressing fluorine-type sintered flux in manganese in high silicon peculiar to vessel after weighing each raw material, is uniformly mixed, is made dry-mixed
Raw material；
(2) in mass ratio, waterglass: waterglass and dry-mixed raw material are carried out wet mixing, wet mixing is 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 fluorine in manganese is made in high silicon peculiar to vessel
Type sintered flux.
4. in high silicon peculiar to vessel according to claim 3 in manganese fluorine-type sintered flux preparation method, which is characterized in that it is described
In step 1 (2), waterglass is sodium silicate and/or potassium water glass.
5. in high silicon peculiar to vessel according to claim 3 in manganese fluorine-type sintered flux preparation method, which is characterized in that it is described
In step 2 (3), 1~3h of drying time.
6. in high silicon peculiar to vessel according to claim 3 in manganese fluorine-type sintered flux preparation method, which is characterized in that it is described
High silicon peculiar to vessel in fluorine-type sintered flux in manganese, before welding need to be at 300~500 DEG C, drying >=2h.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810703937.3A CN108526760A (en) | 2018-06-30 | 2018-06-30 | Fluorine-type sintered flux and preparation method thereof in manganese in one kind high silicon peculiar to vessel |
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|---|---|---|---|
| CN201810703937.3A CN108526760A (en) | 2018-06-30 | 2018-06-30 | Fluorine-type sintered flux and preparation method thereof in manganese in one kind high silicon peculiar to vessel |
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| CN105149817A (en) * | 2015-07-04 | 2015-12-16 | 威县亚泰密封件有限公司 | Sintering flux for submerged-arc welding of X100 pipeline steel and preparation method for sintering flux |
| CN105215576A (en) * | 2015-09-22 | 2016-01-06 | 机械科学研究院哈尔滨焊接研究所 | A kind of nickel-base strip pole submerged arc overlay welding sintered flux and manufacture method |
| CN106271218A (en) * | 2016-08-10 | 2017-01-04 | 中国船舶重工集团公司第七二五研究所 | A kind of sintered flux for the welding of ocean engineering high-strength steel and preparation method thereof |
| CN104668816B (en) * | 2015-01-09 | 2017-01-11 | 天津重型装备工程研究有限公司 | Submerged-arc welding flux for low-alloy-steel narrow-gap welding and preparation method thereof |
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Application publication date: 20180914 |