CN108788523A - Fluorine-type sintered flux and preparation method thereof in a kind of high-silicon high-manganese peculiar to vessel - Google Patents
Fluorine-type sintered flux and preparation method thereof in a kind of high-silicon high-manganese peculiar to vessel Download PDFInfo
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- CN108788523A CN108788523A CN201810703938.8A CN201810703938A CN108788523A CN 108788523 A CN108788523 A CN 108788523A CN 201810703938 A CN201810703938 A CN 201810703938A CN 108788523 A CN108788523 A CN 108788523A
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- manganese
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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
- B23K35/3602—Carbonates, basic oxides or hydroxides
-
- 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)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Nonmetallic Welding Materials (AREA)
Abstract
Fluorine-type sintered flux and preparation method thereof in a kind of high-silicon high-manganese peculiar to vessel, solder flux contains ingredient and is by mass percentage:SiO2:38~42%, MnO:38~42%, CaF2:17~22%;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 high-silicon high-manganese 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 high-silicon high-manganese peculiar to vessel is made;Fluorine-type sintered flux in present invention high-silicon high-manganese peculiar to vessel, the property of welded joint index obtained by postwelding are as follows:Tensile strength is 638~741MPa, and (- 40 DEG C) of low-temperature impact work is 62~85J.
Description
Technical field
The invention belongs to welding technology field, fluorine-type sintered flux and its preparation side in specifically a kind of high-silicon high-manganese 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 high-silicon high-manganese2Content 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 high-manganese in fluorine-type sintered flux.
Invention content
In view of the deficiencies of the prior art, the present invention provides fluorine-type sintered flux and its preparations in a kind of high-silicon high-manganese 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 a kind of high-silicon high-manganese peculiar to vessel is by mass percentage containing ingredient:SiO2:38~
42%, MnO:38~42%, CaF2:17~22%;Wherein, in mass ratio, 0.9≤MnO: SiO2≤ 1.1, the quality of each component
Percentage summation is 100%.
Fluorine-type sintered flux in the high-silicon high-manganese peculiar to vessel, the property of welded joint index obtained by postwelding are as follows:Tension
Intensity is 638~741MPa, and (- 40 DEG C) of low-temperature impact work is 62~85J.
The preparation method of fluorine-type sintered flux, includes the following steps in the high-silicon high-manganese peculiar to vessel of the present invention:
Step 1, batch mixing:
(1) composition proportion for pressing fluorine-type sintered flux in high-silicon high-manganese 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 high-silicon high-manganese peculiar to vessel is made
Middle fluorine-type sintered flux.
The preparation method of fluorine-type sintered flux in above-mentioned high-silicon high-manganese 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.
Fluorine-type sintered flux in the high-silicon high-manganese 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 the high-silicon high-manganese 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 a kind of high-silicon high-manganese peculiar to vessel is by mass percentage containing ingredient::SiO2:42%,
MnO:50%, CaF2:18%.
The preparation method of fluorine-type sintered flux, includes the following steps in the high-silicon high-manganese peculiar to vessel of the present invention:
Step 1, batch mixing:
(1) composition proportion for pressing fluorine-type sintered flux in high-silicon high-manganese 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 300 DEG C of low temperature drying 3h;
Step 3, it is sintered:
Semi-finished product are sintered, sintering temperature is 550 DEG C, sintering time 2h, and fluorine-type in high-silicon high-manganese peculiar to vessel is made and burns
Tie solder flux.
Fluorine-type sintered flux in high-silicon high-manganese 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 645MPa, and (- 40 DEG C) of low-temperature impact work is 68J, 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 a kind of high-silicon high-manganese peculiar to vessel is by mass percentage containing ingredient::SiO2:41%,
MnO:41%, CaF2:18%.
The preparation method of fluorine-type sintered flux, includes the following steps in the high-silicon high-manganese peculiar to vessel of the present invention:
Step 1, batch mixing:
(1) composition proportion for pressing fluorine-type sintered flux in high-silicon high-manganese 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 300 DEG C of low temperature drying 3h;
Step 3, it is sintered:
Semi-finished product are sintered, sintering temperature is 550 DEG C, sintering time 2h, and fluorine-type in high-silicon high-manganese peculiar to vessel is made and burns
Tie solder flux.
Fluorine-type sintered flux in high-silicon high-manganese 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 678MPa, and (- 40 DEG C) of low-temperature impact work is 69J, weld seam at
Divide uniformly, welding bead is smooth, and the removability of slag can be good.
Embodiment 3
Fluorine-type sintered flux in a kind of high-silicon high-manganese peculiar to vessel is by mass percentage containing ingredient::SiO2:39%,
MnO:42%, CaF2:19%.
The preparation method of fluorine-type sintered flux, includes the following steps in the high-silicon high-manganese peculiar to vessel of the present invention:
Step 1, batch mixing:
(1) composition proportion for pressing fluorine-type sintered flux in high-silicon high-manganese 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 300 DEG C of low temperature drying 3h;
Step 3, it is sintered:
Semi-finished product are sintered, sintering temperature is 550 DEG C, sintering time 2h, and fluorine-type in high-silicon high-manganese peculiar to vessel is made and burns
Tie solder flux.
Fluorine-type sintered flux in high-silicon high-manganese 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 739MPa, and (- 40 DEG C) of low-temperature impact work is 81J, 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 a kind of high-silicon high-manganese peculiar to vessel is by mass percentage containing ingredient::SiO2:38%,
MnO:42%, CaF2:20%.
The preparation method of fluorine-type sintered flux, includes the following steps in the high-silicon high-manganese peculiar to vessel of the present invention:
Step 1, batch mixing:
(1) composition proportion for pressing fluorine-type sintered flux in high-silicon high-manganese 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 300 DEG C of low temperature drying 3h;
Step 3, it is sintered:
Semi-finished product are sintered, sintering temperature is 550 DEG C, sintering time 2h, and fluorine-type in high-silicon high-manganese peculiar to vessel is made and burns
Tie solder flux.
Fluorine-type sintered flux in high-silicon high-manganese 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 740MPa, and (- 40 DEG C) of low-temperature impact work is 82J, 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 a kind of high-silicon high-manganese peculiar to vessel, which is characterized in that it contains ingredient and is by mass percentage:SiO2:
38~42%, MnO:38~42%, CaF2:17~22%;Wherein, in mass ratio, 0.9≤MnO:SiO2≤ 1.1, each component
Mass percent summation is 100%.
2. fluorine-type sintered flux in a kind of high-silicon high-manganese peculiar to vessel according to claim 1, which is characterized in that the height peculiar to vessel
Fluorine-type sintered flux in silicon high-manganese, the property of welded joint index obtained by postwelding are as follows:Tensile strength is 638~741MPa, low
(- 40 DEG C) of warm ballistic work is 62~85J.
3. the preparation method of fluorine-type sintered flux in high-silicon high-manganese peculiar to vessel described in claim 1, which is characterized in that including as follows
Step:
Step 1, batch mixing:
(1) composition proportion for pressing fluorine-type sintered flux in high-silicon high-manganese 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 high-silicon high-manganese peculiar to vessel is made
Type sintered flux.
4. the preparation method of fluorine-type sintered flux in high-silicon high-manganese peculiar to vessel according to claim 3, which is characterized in that described
In step 1 (2), waterglass is sodium silicate and/or potassium water glass.
5. the preparation method of fluorine-type sintered flux in high-silicon high-manganese peculiar to vessel according to claim 3, which is characterized in that described
In step 2 (3), 1~3h of drying time.
6. the preparation method of fluorine-type sintered flux in high-silicon high-manganese peculiar to vessel according to claim 3, which is characterized in that described
High-silicon high-manganese peculiar to vessel in fluorine-type sintered flux, before welding need to be at 300~500 DEG C, drying >=2h.
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