CN108788525A - A kind of fluorine alkali silico-calcium type sintered flux peculiar to vessel and preparation method thereof - Google Patents
A kind of fluorine alkali silico-calcium type sintered flux peculiar to vessel and preparation method thereof Download PDFInfo
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- CN108788525A CN108788525A CN201810704755.8A CN201810704755A CN108788525A CN 108788525 A CN108788525 A CN 108788525A CN 201810704755 A CN201810704755 A CN 201810704755A CN 108788525 A CN108788525 A CN 108788525A
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- calcium type
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- 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
- B23K35/3601—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
- B23K35/40—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
A kind of fluorine alkali silico-calcium type sintered flux peculiar to vessel and preparation method thereof, solder flux contains ingredient and is by mass percentage:CaF2:70~85%, SiO2:10~20%, CaO:5-10%;Wherein, in mass ratio, the mass percent summation of each component is 100%;Preparation method:1) composition proportion for pressing fluorine alkali silico-calcium 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, fluorine alkali silico-calcium type sintered flux peculiar to vessel is made;Present invention fluorine alkali silico-calcium type sintered flux peculiar to vessel, the property of welded joint index obtained by postwelding are as follows:Tensile strength intensity is 640~692MPa, and (- 40 DEG C) of low-temperature impact work is 53~68J.
Description
Technical field
The invention belongs to welding technology field, specifically a kind of fluorine alkali silico-calcium type sintered flux peculiar to vessel and preparation method thereof.
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 fluorine alkali silico-calcium 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 fluorine alkali silico-calcium type sintered flux peculiar to vessel is by mass percentage containing ingredient:CaF2:70~85%,
SiO2:10~20%, CaO:The mass percent summation of 5-10%, each component are 100%.
The fluorine alkali silico-calcium type sintered flux peculiar to vessel, the property of welded joint index obtained by postwelding are as follows:Tensile strength
For 640~692MPa, (- 40 DEG C) of low-temperature impact work is 53~68J.
The preparation method of the fluorine alkali silico-calcium type sintered flux peculiar to vessel of the present invention, includes the following steps:
Step 1, batch mixing:
(1) composition proportion for pressing fluorine alkali silico-calcium type sintered flux 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, 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 fluorine alkali silico-calcium peculiar to vessel is made
Type sintered flux.
The preparation method of above-mentioned fluorine alkali silico-calcium 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 fluorine alkali silico-calcium type sintered flux peculiar to vessel, before welding need to be at 300~500 DEG C, drying >=2h.Drying uses
Drying box is dried.
The fluorine alkali silico-calcium type sintered flux peculiar to vessel and preparation method thereof of the present invention, compared with prior art, has the beneficial effect that:
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 fluorine alkali silico-calcium type sintered flux peculiar to vessel is by mass percentage containing ingredient:CaF2:70%, SiO2:
20%, CaO:10%.
The preparation method of the fluorine alkali silico-calcium type sintered flux peculiar to vessel of the present invention, includes the following steps:
Step 1, batch mixing:
(1) composition proportion for pressing fluorine alkali silico-calcium type sintered flux peculiar to vessel, after weighing each raw material, is put into mixing equipment, stirs
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 fluorine alkali silico-calcium type sintering peculiar to vessel is made
Solder flux.
Fluorine alkali silico-calcium 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 53J, and composition of weld line is uniform, welding bead light
Sliding, the removability of slag can be good.
Embodiment 2
A kind of fluorine alkali silico-calcium type sintered flux peculiar to vessel is by mass percentage containing ingredient:CaF2:75%, SiO2:
20%, CaO:5%.
The preparation method of the fluorine alkali silico-calcium type sintered flux peculiar to vessel of the present invention, includes the following steps:
Step 1, batch mixing:
(1) composition proportion for pressing fluorine alkali silico-calcium type sintered flux peculiar to vessel, after weighing each raw material, is put into mixing equipment, stirs
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 fluorine alkali silico-calcium type sintering weldering peculiar to vessel is made
Agent.
Fluorine alkali silico-calcium type sintered flux peculiar to vessel manufactured in the present embodiment uses drying box at 300~500 DEG C before welding,
Drying >=2h;Then, the fysed flux cooperation low-carbon type welding wire after drying welds EH36 grades of ship steels, obtained by postwelding
Property of welded joint index it is as follows:Tensile strength is 680MPa, and (- 40 DEG C) of low-temperature impact work is 60J, and composition of weld line is uniform,
Welding bead is smooth, and the removability of slag can be good.
Embodiment 3
A kind of fluorine alkali silico-calcium type sintered flux peculiar to vessel is by mass percentage containing ingredient:CaF2:80%, SiO2:
10%, CaO:10%.
The preparation method of the fluorine alkali silico-calcium type sintered flux peculiar to vessel of the present invention, includes the following steps:
Step 1, batch mixing:
(1) composition proportion for pressing fluorine alkali silico-calcium type sintered flux peculiar to vessel, after weighing each raw material, is put into mixing equipment, stirs
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 fluorine alkali silico-calcium type sintering weldering peculiar to vessel is made
Agent.
Fluorine alkali silico-calcium 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 692MPa, 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 fluorine alkali silico-calcium type sintered flux peculiar to vessel, which is characterized in that it contains ingredient and is by mass percentage:CaF2:70~
85%, SiO2:10~20%, CaO:5-10%;Wherein, in mass ratio, the mass percent summation of each component is 100%.
2. a kind of fluorine alkali silico-calcium type sintered flux peculiar to vessel according to claim 1, which is characterized in that the fluorine alkali silicon peculiar to vessel
Calcium type sintered flux, the property of welded joint index obtained by postwelding are as follows:Tensile strength intensity is 640~692MPa, low temperature punching
It is 53~68J to hit (- 40 DEG C) of work(.
3. the preparation method of fluorine alkali silico-calcium 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 fluorine alkali silico-calcium type sintered flux peculiar to vessel after weighing each raw material, is uniformly mixed, 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=20~30%
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 alkali silico-calcium type peculiar to vessel is made and burns
Tie solder flux.
4. the preparation method of fluorine alkali silico-calcium type sintered flux peculiar to vessel according to claim 3, which is characterized in that the step
In 1 (2), waterglass is sodium silicate and/or potassium water glass.
5. the preparation method of fluorine alkali silico-calcium type sintered flux peculiar to vessel according to claim 3, which is characterized in that the step
In 2 (3), 1~3h of drying time.
6. the preparation method of fluorine alkali silico-calcium type sintered flux peculiar to vessel according to claim 3, which is characterized in that the fluorine
Alkali silico-calcium type sintered flux, before welding need to be at 300~500 DEG C, drying >=2h.
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CN201810704755.8A CN108788525A (en) | 2018-06-30 | 2018-06-30 | A kind of fluorine alkali silico-calcium type sintered flux peculiar to vessel and preparation method thereof |
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CN201810704755.8A CN108788525A (en) | 2018-06-30 | 2018-06-30 | A kind of fluorine alkali silico-calcium type sintered flux peculiar to vessel and preparation method thereof |
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Citations (6)
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CN103846577A (en) * | 2014-03-26 | 2014-06-11 | 锦州天鹅焊材股份有限公司 | Soldering flux for submerged arc soldering of X100 pipeline steel and preparation method thereof |
CN105081615A (en) * | 2015-09-11 | 2015-11-25 | 武汉铁锚焊接材料股份有限公司 | High tenacity and low hydrogen type agglomerated flux for ocean engineering and preparation method thereof |
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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2018
- 2018-06-30 CN CN201810704755.8A patent/CN108788525A/en active Pending
Patent Citations (6)
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CN103846577A (en) * | 2014-03-26 | 2014-06-11 | 锦州天鹅焊材股份有限公司 | Soldering flux for submerged arc soldering of X100 pipeline 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 |
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 |
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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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