CN108788528A - A kind of high alkalinity high-silicon type sintered flux peculiar to vessel and preparation method thereof - Google Patents
A kind of high alkalinity high-silicon type sintered flux peculiar to vessel and preparation method thereof Download PDFInfo
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- CN108788528A CN108788528A CN201810704738.4A CN201810704738A CN108788528A CN 108788528 A CN108788528 A CN 108788528A CN 201810704738 A CN201810704738 A CN 201810704738A CN 108788528 A CN108788528 A CN 108788528A
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- silicon type
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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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- Mechanical Engineering (AREA)
- Nonmetallic Welding Materials (AREA)
Abstract
A kind of high alkalinity high-silicon type sintered flux peculiar to vessel and preparation method thereof, solder flux contains ingredient and is by mass percentage：CaF2：80~95%, SiO2：5~20%；Wherein, the mass percent summation of each component is 100%；Preparation method：1) composition proportion for pressing high alkalinity high-silicon 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 high-silicon type sintered flux peculiar to vessel is made；Present invention high alkalinity high-silicon type sintered flux peculiar to vessel, the property of welded joint index obtained by postwelding are as follows：Tensile strength intensity is 640~700MPa, and (- 40 DEG C) of low-temperature impact work is 58~68J.
Description
Technical field
The invention belongs to welding technology field, specifically a kind of high alkalinity high-silicon 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 high-basicity 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 high-silicon 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 sintering
Solder flux.
A kind of high alkalinity high-silicon type sintered flux peculiar to vessel is by mass percentage containing ingredient：CaF2：80~95%,
SiO2：5~20%, the mass percent summation of each component is 100%.
The high alkalinity high-silicon type sintered flux peculiar to vessel, the property of welded joint index obtained by postwelding are as follows：Tension is strong
Degree is 640~700MPa, and (- 40 DEG C) of low-temperature impact work is 58~68J.
The preparation method of the high alkalinity high-silicon 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 high-silicon 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, 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 it is high that high alkalinity peculiar to vessel is made
Silicon type sintered flux.
The preparation method of above-mentioned high alkalinity high-silicon 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 high-silicon 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 high-silicon 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 sintered flux, can be well matched with low-carbon and low-alloy ship steel and obtain
Even 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 ray detection
Zero defect disclosure satisfy that the technological requirement of welding.
Specific implementation mode
Embodiment 1
A kind of high alkalinity high-silicon type sintered flux peculiar to vessel is by mass percentage containing ingredient：CaF2：93%, SiO2：
7%.
The preparation method of the high alkalinity high-silicon 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 high-silicon 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 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 2h；
Step 3, it is sintered：
Semi-finished product are sintered, sintering temperature is 400 DEG C, sintering time 2.5h, and high alkalinity high-silicon type peculiar to vessel is made and burns
Tie solder flux.
High alkalinity high-silicon 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 640MPa, and (- 40 DEG C) of low-temperature impact work is 58J, 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 high-silicon type sintered flux peculiar to vessel is by mass percentage containing ingredient：CaF2：85%, SiO2：
15%.
The preparation method of the high alkalinity high-silicon 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 high-silicon 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 is 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 high-silicon type sintering peculiar to vessel is made
Solder flux.
High alkalinity high-silicon 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 60J, 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 high-silicon type sintered flux peculiar to vessel is by mass percentage containing ingredient：CaF2：83%, SiO2：
17%.
The preparation method of the high alkalinity high-silicon 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 high-silicon 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 is 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 high-silicon type sintering peculiar to vessel is made
Solder flux.
High alkalinity high-silicon 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 700MPa, and (- 40 DEG C) of low-temperature impact work is 68J, 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 high-silicon type sintered flux peculiar to vessel, which is characterized in that it contains ingredient and is by mass percentage：CaF2：
80~95%, SiO2：5~20%, the mass percent summation of each component is 100%.
2. a kind of high alkalinity high-silicon type sintered flux peculiar to vessel according to claim 1, which is characterized in that the sintering weldering
Agent, the property of welded joint index obtained by postwelding are as follows：Tensile strength is 640~700MPa, and (- 40 DEG C) of low-temperature impact work is 58
~68J.
3. the preparation method of high alkalinity high-silicon 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 high-silicon 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 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 high alkalinity high-silicon type peculiar to vessel is made
Sintered flux.
4. the preparation method of high alkalinity high-silicon 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 high-silicon 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 high-silicon type sintered flux peculiar to vessel according to claim 3, which is characterized in that the burning
Solder flux is tied, before welding need to be at 300~500 DEG C, drying >=2h.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810704738.4A CN108788528A (en) | 2018-06-30 | 2018-06-30 | A kind of high alkalinity high-silicon type sintered flux peculiar to vessel and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810704738.4A CN108788528A (en) | 2018-06-30 | 2018-06-30 | A kind of high alkalinity high-silicon type sintered flux peculiar to vessel and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN108788528A true CN108788528A (en) | 2018-11-13 |
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|---|---|---|---|
| CN201810704738.4A Pending CN108788528A (en) | 2018-06-30 | 2018-06-30 | A kind of high alkalinity high-silicon type sintered flux peculiar to vessel and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110293337A (en) * | 2019-06-28 | 2019-10-01 | 东北大学 | One kind low zirconium fluorine alkaline type sintered flux peculiar to vessel and preparation method thereof |
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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 |
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| CN104668816A (en) * | 2015-01-09 | 2015-06-03 | 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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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110293337A (en) * | 2019-06-28 | 2019-10-01 | 东北大学 | One kind low zirconium fluorine alkaline type sintered flux peculiar to vessel and preparation method thereof |
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Application publication date: 20181113 |
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