CN108393606A - Self-protection flux-cored wire and its production method - Google Patents
Self-protection flux-cored wire and its production method Download PDFInfo
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- CN108393606A CN108393606A CN201810489896.2A CN201810489896A CN108393606A CN 108393606 A CN108393606 A CN 108393606A CN 201810489896 A CN201810489896 A CN 201810489896A CN 108393606 A CN108393606 A CN 108393606A
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- powder
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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
- B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
- B23K35/0255—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in welding
- B23K35/0261—Rods, electrodes, wires
- B23K35/0266—Rods, electrodes, wires flux-cored
-
- 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
-
- 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
-
- 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
Abstract
The present invention relates to a kind of self-protection flux-cored wire and its production methods, which is characterized in that is made of the Aluminum steel band of medicine core and package medicine core, the medicine core accounts for the 15 20% of self-protection flux-cored wire total weight, and the medicine core includes the component of following mass percent：Composite fluoride 35 45%, carbonate 5 10%, cellulose powder 2 5%, nickel powder 10 15%, aluminium powder 0.5 1%, manganese magnesium alloy powder 5 10%, niobium zirconium alloy powder 0.5 2%, two chromium borides 2 5%, di-iron trioxide 0.5 1.5%, diboron trioxide 0.5 1.5%, rare earth compound 1 3%, surplus are iron powder, and the sum of each component mass percent is 100%.Self-protection flux-cored wire Al content of the present invention is low, and deposition efficiency is high, and appearance of weld is beautiful, and weld seam has excellent plasticity and toughness, while weld seam also has high hardness, wearability, thermal fatigue resistance, high-temperature stability and creep resisting ability.
Description
Technical field
The present invention relates to a kind of welding wire technology fields, and in particular to a kind of self-protection flux-cored wire and its production method.
Background technology
Self-protection flux-cored wire increases the flexibility of construction, is especially built in high level due to not needing adscititious gases protection
Build, oil transportation, the various outdoor constructions scenes such as gas transmission line and ocean platform, be more widely applied.Self-shield fluxed-cored welding
Silk is released some gases, is formed protective barrier to completely cut off air due to certain pulvis decomposition or gasification in welding in medicine core；
Meanwhile containing a certain amount of deoxidier and strong nitride forming element, venthole in weld seam can be prevented and led because of nitrogen content height
Weld metal toughness is caused to decline.High aluminum content is a feature of self-protection flux-cored wire, in order to avoid weld seam generates an oxygen
Change carbon and nitrogen stomata, as the Al of strong deoxidier and strong nitride forming element, the addition in medicine core is considerable.
But excessive Al can cause coarse grains in weld seam, seriously affect the plasticity and toughness of weld metal.And self-shield medicine core
Welding wire, because the pulvis amount in medicine core is few, the metal of the metallic element volatilization generation of protective gas, addition caused by gas-forming agent
The slag etc. that slag former generates in the gas and medicine core that are generated when steam, metallurgical reaction, cannot effectively completely cut off outside air
Intrusion, cause the oxygen in arc atmosphere, nitrogen and hydrogen to enter droplet metal.Droplet metal containing these gases falls into molten bath
Later, if cannot fully remove these gases in molten bath, it will form the various folders such as oxide, nitride in weld seam
Sundries adversely affects welding seam toughness.Based on this, it is necessary to improve weld metal while developing a kind of reduction Al content
Plasticity and toughness self-protection flux-cored wire.
Invention content
The purpose of the invention is to overcome the deficiencies of the prior art and provide a kind of self-shield fluxed-cored welding that Al content is low
The deposition efficiency of silk, the self-protection flux-cored wire is high, takes off slag and is easy, and appearance of weld is beautiful, and the weld seam after welding has excellent
Plasticity and toughness, while weld seam also has high hardness, wearability, thermal fatigue resistance, high-temperature stability and creep resisting ability.
The invention is realized in this way：
A kind of self-protection flux-cored wire, which is characterized in that be made of the Aluminum steel band of medicine core and package medicine core, the medicine core accounts for certainly
The 15-20% of flux-cored wire total weight, the medicine core is protected to include the component of following mass percent：Composite fluoride 35-45%,
Carbonate 5-10%, cellulose powder 2-5%, nickel powder 10-15%, aluminium powder 0.5-1%, manganese magnesium alloy powder 5-10%, niobium zirconium alloy powder 0.5-
2%, two chromium boride 2-5%, di-iron trioxide 0.5-1.5%, diboron trioxide 0.5-1.5%, rare earth compound 1-3%, surplus are iron
Powder, the sum of above constituent mass percentage are 100%；Content of magnesium is 40-50wt% in the manganese magnesium alloy powder, in niobium zirconium alloy powder
Content of niobium is 30-40wt%.
Further preferably, the medicine core includes the component of following mass percent：Composite fluoride 40%, carbonate 6%, fibre
The plain powder 3% of dimension, nickel powder 12%, aluminium powder 0.8%, manganese magnesium alloy powder 6%, niobium zirconium alloy powder 1%, two chromium borides 3%, di-iron trioxide 1%,
Diboron trioxide 1%, rare earth compound 2%, surplus are iron powder, and the sum of above constituent mass percentage is 100%.
Further preferably, the composite fluoride includes barium fluoride, lithium fluoride, potassium fluorozirconate and prodan, the fluorine
The weight ratio for changing barium, lithium fluoride, potassium fluorozirconate and prodan is 2:1:0.5:0.5.
Further preferably, the carbonate includes lithium carbonate, magnesium carbonate and manganese carbonate, the lithium carbonate, magnesium carbonate and carbon
The mass ratio of sour manganese is 3:1:0.5.
Further preferably, the rare earth compound includes lanthanum fluoride, cerium fluoride, yttrium fluoride and ceria, the fluorination
Lanthanum, cerium fluoride, yttrium fluoride and ceria mass ratio be 4:2:0.5:1.
Further preferably, the cellulose powder is in microcrystal cellulose powder, bamboo cellulose powder or methylcellulose powder
It is one or more of.
Further preferably, aluminium content is 0.1-0.5% in the Aluminum steel band.
The production method of the self-protection flux-cored wire of the present invention, includes the following steps：
S1, composite fluoride is weighed according to proportioning, carbonate and rare earth compound are uniformly mixed, sodium water glass is added into mixture
Glass stirs evenly, heat-agglomerating, and sintering temperature is 850-900 DEG C, and sintering time is 1 hour, is then granulated and forms fine particle,
Screening granularity is 120-150 mesh powder particles, obtains mixed-powder particle；
S2, cellulose powder, nickel powder, aluminium powder, manganese magnesium alloy powder, niobium zirconium alloy powder, two chromium borides, three oxidations two are weighed according to proportioning
Iron, diboron trioxide and iron powder are uniformly mixed, dry, and obtain metal mixed powder, and the mixed of step 1 is added in metal mixed powder
It closes and is stirred evenly in powder particle, obtain medicine core powder, the sum of S1 and S2 each component mass percents are 100%；
S3, Aluminum steel band being put on flux-cored wire forming machine, Aluminum steel band is rolled into U-shaped steel band by flux-cored wire forming machine,
Then medicine core powder is added into U-shaped steel band, and the filling rate of medicine core powder is 15-20%, then U-shaped steel band is closed by molding machine
It closes, is drawn to predetermined size, obtains self-protection flux-cored wire.
Further preferably, the addition of the sodium silicate is the 25% of mixed-powder particle.
Further preferably, the drying temperature in the step 2 is 250-300 DEG C, and drying time is 2-3 hours.
Utstanding substantial characteristics and significant improvement of the present invention are：
1, self-protection flux-cored wire of the present invention reduces containing for Al by adjusting medicine core raw material and steel band ingredient and content in medicine core
Rare earth compound and diboron trioxide is added in amount, increases substantially the plasticity and toughness of weld seam, appearance of weld is beautiful after welding wire welding
It sees, easily de- slag, the small, arc stability of splashing, spilehole is not present in weld seam, and high hardness, wearability, thermal fatigue resistance, high temperature are steady
Qualitative and creep resisting ability.
2, rare earth compound can improve crystallite dimension and promote ferrite forming core, increase acicular ferrite, can also make to melt
Oxygen content declines in metallisation, reduces stomata sensitivity, total nitrogen content can be made to control by the nitrogen fixation of rare earth compound
In a certain range, and the illeffects of nitrogen is reduced, and the form of weld structure can be improved, crystal grain thinning can make weldering
Seam obtains higher hardness, wearability, thermal fatigue resistance and other excellent properties, improves the high-temperature stability, anti-compacted of tissue
Change ability.
3, composite fluoride is conducive to stablize the effect of electric arc, while in the case of arc stability, and lid slag performance is notable
It improves, welds good operation performance, by the protective effect of composite fluoride, improve the impact property of weld seam, eliminate deposition gold
The spilehole of category；For example lithium fluoride can be effectively improved arc stability, while generating Li in arc region3N is reduced in deposited metals
N content.
4, by the way that di-iron trioxide and manganese magnesium alloy powder are added into medicine core, Al mass fractions in deposited metal can be dropped
It is low, stomata sensitivity is reduced, the circular inclusion based on alundum (Al2O3) is obtained, increases transgranular heterogeneous forming core core, weld seam group
It knits and is refined, by being remarkably improved the low-temperature flexibility of deposited metal to effective control of O, N content, di-iron trioxide can also
Improve the physical property of welding slag, improves appearance of weld, keep face of weld bright and clean, enhance the protecting effect of welding slag.
5, the protecting effect of welding wire can preferably be improved as crust using Aluminum steel band, it is sensitive reduces weld porosity
Property；Make to remain aluminium content reduction in deposited metal, advantage is provided for the improvement of deposited metal.
6, manganese magnesium alloy powder can significantly be improved the plasticity and toughness of weld metal, be carried simultaneously by the cooperation with nickel powder
The intensity of high weld metal.
7, niobium zirconium alloy powder can increase the solubility of nitrogen and hydrogen, form the hydride of stable nitride and low-temperature stabilization,
So that the harm of the nitrogen and hydrogen immersed in molten bath disappears or weakens, the damage of nitrogen and hydrogen Resistance of Weld Metal performance is eliminated, moreover it is possible to increase
It is welded with the intensity of seam.
8, the cooperation of carbonate and composite fluoride so that welding wire has excellent gas making and slag making performance, effectively prevents
The intrusion of pernicious gas.
9, medicine core raw material is pre-processed and is sintered using sodium silicate so that medicinal powder, which forms certain granules degree, improves medicine
The mobility of powder excludes part gas in medicinal powder, improves the hygroscopicity of medicinal powder, control harmful chemical component in medicinal powder (O, H, P,
S), shorten medicine core and melt the required time, reduce spatter.
Specific implementation mode
Embodiment 1
Medicine core includes the component of following mass percent：Composite fluoride 35-45%, carbonate 5-10%, cellulose powder 2-5%, nickel
Powder 10-15%, aluminium powder 0.5-1%, manganese magnesium alloy powder 5-10%, niobium zirconium alloy powder 0.5-2%, two chromium boride 2-5%, di-iron trioxide
0.5-1.5%, diboron trioxide 0.5-1.5%, rare earth compound 1-3%, surplus are iron powder, the sum of above constituent mass percentage
It is 100%.
The production method of self-protection flux-cored wire is：
S1, composite fluoride is weighed according to proportioning, carbonate and rare earth compound are uniformly mixed, sodium water glass is added into mixture
Glass stirs evenly, heat-agglomerating, and sintering temperature is 850 DEG C, and sintering time is 1 hour, is then granulated and forms fine particle, screens
Granularity is 120 mesh powder particles, obtains mixed-powder particle, the addition of the sodium silicate is mixed-powder particle
25%；
S2, cellulose powder, nickel powder, aluminium powder, manganese magnesium alloy powder, niobium zirconium alloy powder, two chromium borides, three oxidations two are weighed according to proportioning
Iron, diboron trioxide and iron powder are uniformly mixed, dry, and drying temperature is 250 DEG C, and drying time is 2 hours, obtains metal mixed
Metal mixed powder is added in the mixed-powder particle of step 1 and stirs evenly, obtains medicine core powder, S1 and S2 each groups by powder
It is 100% to divide the sum of mass percent；
S3, Aluminum steel band being put on flux-cored wire forming machine, Aluminum steel band is rolled into U-shaped steel band by flux-cored wire forming machine,
Then medicine core powder is added into U-shaped steel band, the filling rate of medicine core powder is 20%, then is closed U-shaped steel band by molding machine,
It is 1.2mm to be drawn to gage of wire, obtains self-protection flux-cored wire.
Embodiment 2
Medicine core includes the component of following mass percent：Composite fluoride 40%, carbonate 6%, cellulose powder 3%, nickel powder 12%, aluminium
Powder 0.8%, manganese magnesium alloy powder 6%, niobium zirconium alloy powder 1%, two chromium borides 3%, di-iron trioxide 1%, diboron trioxide 1%, rare earth
Object 2%, surplus are closed as iron powder, the sum of above constituent mass percentage is 100%.
The production method of self-protection flux-cored wire is：
S1, composite fluoride is weighed according to proportioning, carbonate and rare earth compound are uniformly mixed, sodium water glass is added into mixture
Glass stirs evenly, heat-agglomerating, and sintering temperature is 890 DEG C, and sintering time is 1 hour, is then granulated and forms fine particle, screens
Granularity is 140 mesh powder particles, obtains mixed-powder particle, the addition of the sodium silicate is mixed-powder particle
25%；
S2, cellulose powder, nickel powder, aluminium powder, manganese magnesium alloy powder, niobium zirconium alloy powder, two chromium borides, three oxidations two are weighed according to proportioning
Iron, diboron trioxide and iron powder are uniformly mixed, dry, and drying temperature is 250 DEG C, and drying time is 3 hours, obtains metal mixed
Metal mixed powder is added in the mixed-powder particle of step 1 and stirs evenly, obtains medicine core powder, S1 and S2 each groups by powder
It is 100% to divide the sum of mass percent；
S3, Aluminum steel band being put on flux-cored wire forming machine, Aluminum steel band is rolled into U-shaped steel band by flux-cored wire forming machine,
Then medicine core powder is added into U-shaped steel band, the filling rate of medicine core powder is 20%, then is closed U-shaped steel band by molding machine,
It is 1.2mm to be drawn to gage of wire, obtains self-protection flux-cored wire.
Embodiment 3
Medicine core includes the component of following mass percent：Composite fluoride 42%, carbonate 8, cellulose powder 2-5%, nickel powder 14%,
Aluminium powder 0.6%, manganese magnesium alloy powder 8%, niobium zirconium alloy powder 1.5%, two chromium borides 4%, di-iron trioxide 1.2%, diboron trioxide
1.2%, rare earth compound 2.5%, surplus are iron powder, and the sum of above constituent mass percentage is 100%.
The production method of self-protection flux-cored wire is：
S1, composite fluoride is weighed according to proportioning, carbonate and rare earth compound are uniformly mixed, sodium water glass is added into mixture
Glass stirs evenly, heat-agglomerating, and sintering temperature is 900 DEG C, and sintering time is 1 hour, is then granulated and forms fine particle, screens
Granularity is 150 mesh powder particles, obtains mixed-powder particle, the addition of the sodium silicate is mixed-powder particle
25%；
S2, cellulose powder, nickel powder, aluminium powder, manganese magnesium alloy powder, niobium zirconium alloy powder, two chromium borides, three oxidations two are weighed according to proportioning
Iron, diboron trioxide and iron powder are uniformly mixed, dry, and drying temperature is 300 DEG C, and drying time is 2 hours, obtains metal mixed
Metal mixed powder is added in the mixed-powder particle of step 1 and stirs evenly, obtains medicine core powder, S1 and S2 each groups by powder
It is 100% to divide the sum of mass percent；
S3, Aluminum steel band being put on flux-cored wire forming machine, Aluminum steel band is rolled into U-shaped steel band by flux-cored wire forming machine,
Then medicine core powder is added into U-shaped steel band, the filling rate of medicine core powder is 18%, then is closed U-shaped steel band by molding machine,
It is 1.2mm to be drawn to gage of wire, obtains self-protection flux-cored wire.
Embodiment 4
Medicine core includes the component of following mass percent：Composite fluoride 45%, carbonate 10%, cellulose powder 5%, nickel powder 15%,
It is aluminium powder 1%, manganese magnesium alloy powder 10%, niobium zirconium alloy powder 2%, two chromium borides 5%, di-iron trioxide 1.5%, diboron trioxide 1.5%, dilute
Earth compounds 3%, surplus are iron powder, and the sum of above constituent mass percentage is 100%.
The production method of self-protection flux-cored wire is：
S1, composite fluoride is weighed according to proportioning, carbonate and rare earth compound are uniformly mixed, sodium water glass is added into mixture
Glass stirs evenly, heat-agglomerating, and sintering temperature is 900 DEG C, and sintering time is 1 hour, is then granulated and forms fine particle, screens
Granularity is 150 mesh powder particles, obtains mixed-powder particle, the addition of the sodium silicate is mixed-powder particle
25%；
S2, cellulose powder, nickel powder, aluminium powder, manganese magnesium alloy powder, niobium zirconium alloy powder, two chromium borides, three oxidations two are weighed according to proportioning
Iron, diboron trioxide and iron powder are uniformly mixed, dry, and drying temperature is 300 DEG C, and drying time is 3 hours, obtains metal mixed
Metal mixed powder is added in the mixed-powder particle of step 1 and stirs evenly, obtains medicine core powder, S1 and S2 each groups by powder
It is 100% to divide the sum of mass percent；
S3, Aluminum steel band being put on flux-cored wire forming machine, Aluminum steel band is rolled into U-shaped steel band by flux-cored wire forming machine,
Then medicine core powder is added into U-shaped steel band, the filling rate of medicine core powder is 20%, then is closed U-shaped steel band by molding machine,
It is 1.2mm to be drawn to gage of wire, obtains self-protection flux-cored wire.
Test effect
Low-alloy steel is welded using the present embodiment 1-4 self-protection flux-cored wires prepared, reference examples are public using Guangzhou
The self-protection flux-cored wire of department, gage of wire 1.2mm are detected according to GB/T25776-2010 standards, as a result as follows：
Table 1 is the welding technological properties of self-protection flux-cored wire of the present invention and reference examples：
Table 2 is the mechanical property of self-protection flux-cored wire of the present invention and the deposited metal of reference examples：
It is learnt by Tables 1 and 2, self-protection flux-cored wire of the invention has excellent welding technological properties and mechanical property, fits
For the welding of important mild steel and low-alloy steel, thin plate single-run welding, pipe line steel, overlap joint, corner connection, docking can be widely applied to
Weldering is also used for the welding that On Impact Toughness not desired semi-automatic welding.
Claims (10)
1. a kind of self-protection flux-cored wire, which is characterized in that be made of the Aluminum steel band of medicine core and package medicine core, the medicine core accounts for
The 15-20% of self-protection flux-cored wire total weight, the medicine core include the component of following mass percent：Composite fluoride 35-
45%, carbonate 5-10%, cellulose powder 2-5%, nickel powder 10-15%, aluminium powder 0.5-1%, manganese magnesium alloy powder 5-10%, niobium zirconium alloy powder
0.5-2%, two chromium boride 2-5%, di-iron trioxide 0.5-1.5%, diboron trioxide 0.5-1.5%, rare earth compound 1-3%, surplus
For iron powder, the sum of the above constituent mass percentage is 100%；Content of magnesium is 40-50wt%, niobium zirconium alloy in the manganese magnesium alloy powder
Content of niobium is 30-40wt% in powder.
2. self-protection flux-cored wire according to claim 1, which is characterized in that the medicine core includes following mass percent
Component：Composite fluoride 40%, carbonate 6%, cellulose powder 3%, nickel powder 12%, aluminium powder 0.8%, manganese magnesium alloy powder 6%, niobium zirconium are closed
Bronze 1%, two chromium borides 3%, di-iron trioxide 1%, diboron trioxide 1%, rare earth compound 2%, surplus are iron powder, the above component
The sum of mass percent is 100%.
3. self-protection flux-cored wire according to claim 1, it is characterised in that：The composite fluoride include barium fluoride,
Lithium fluoride, potassium fluorozirconate and prodan, the barium fluoride, lithium fluoride, potassium fluorozirconate and prodan weight ratio be 2:1:
0.5:0.5。
4. self-protection flux-cored wire according to claim 1, it is characterised in that：The carbonate includes lithium carbonate, carbonic acid
The mass ratio of magnesium and manganese carbonate, the lithium carbonate, magnesium carbonate and manganese carbonate is 3:1:0.5.
5. self-protection flux-cored wire according to claim 1, it is characterised in that：The rare earth compound include lanthanum fluoride,
Cerium fluoride, yttrium fluoride and ceria, the lanthanum fluoride, cerium fluoride, yttrium fluoride and ceria mass ratio be 4:2:0.5:
1。
6. self-protection flux-cored wire according to claim 1, it is characterised in that：The cellulose powder is microcrystalline cellulose
One or more of powder, bamboo cellulose powder or methylcellulose powder.
7. self-protection flux-cored wire according to claim 1, it is characterised in that：Aluminium content is 0.1- in the Aluminum steel band
0.5%。
8. the production method of self-protection flux-cored wire as described in claim 1, which is characterized in that include the following steps：
S1, composite fluoride is weighed according to proportioning, carbonate and rare earth compound are uniformly mixed, sodium water glass is added into mixture
Glass stirs evenly, heat-agglomerating, and sintering temperature is 850-900 DEG C, and sintering time is 1 hour, is then granulated and forms fine particle,
Screening granularity is 120-150 mesh powder particles, obtains mixed-powder particle；
S2, cellulose powder, nickel powder, aluminium powder, manganese magnesium alloy powder, niobium zirconium alloy powder, two chromium borides, three oxidations two are weighed according to proportioning
Iron, diboron trioxide and iron powder are uniformly mixed, dry, and obtain metal mixed powder, and the mixed of step 1 is added in metal mixed powder
It closes and is stirred evenly in powder particle, obtain medicine core powder, the sum of S1 and S2 each component mass percents are 100%；
S3, Aluminum steel band being put on flux-cored wire forming machine, Aluminum steel band is rolled into U-shaped steel band by flux-cored wire forming machine,
Then medicine core powder is added into U-shaped steel band, and the filling rate of medicine core powder is 15-20%, then U-shaped steel band is closed by molding machine
It closes, is drawn to predetermined size, obtains self-protection flux-cored wire.
9. the production method of self-protection flux-cored wire according to claim 8, it is characterised in that：The sodium silicate adds
Enter 25% that amount is mixed-powder particle.
10. the production method of self-protection flux-cored wire according to claim 8, it is characterised in that：Baking in the step 2
Dry temperature is 250-300 DEG C, and drying time is 2-3 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810489896.2A CN108393606A (en) | 2018-05-21 | 2018-05-21 | Self-protection flux-cored wire and its production method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810489896.2A CN108393606A (en) | 2018-05-21 | 2018-05-21 | Self-protection flux-cored wire and its production method |
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|---|---|
| CN108393606A true CN108393606A (en) | 2018-08-14 |
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ID=63101256
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|---|---|---|---|
| CN201810489896.2A Pending CN108393606A (en) | 2018-05-21 | 2018-05-21 | Self-protection flux-cored wire and its production method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109366036A (en) * | 2018-10-22 | 2019-02-22 | 山东省科学院新材料研究所 | A kind of welding wire being effectively improved Mg-Al system magnesium alloy welding tissue |
| CN111774757A (en) * | 2020-06-12 | 2020-10-16 | 天津中德应用技术大学 | Self-lubricating wear-resistant flux-cored wire containing nickel-coated graphite component and welding method thereof |
| CN114231855A (en) * | 2021-12-30 | 2022-03-25 | 武汉理工大学 | Preparation method of arc fuse of ODS steel |
| CN115008064A (en) * | 2022-06-22 | 2022-09-06 | 内蒙金属材料研究所 | Welding wire, preparation method and application thereof, and welding method |
-
2018
- 2018-05-21 CN CN201810489896.2A patent/CN108393606A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109366036A (en) * | 2018-10-22 | 2019-02-22 | 山东省科学院新材料研究所 | A kind of welding wire being effectively improved Mg-Al system magnesium alloy welding tissue |
| CN111774757A (en) * | 2020-06-12 | 2020-10-16 | 天津中德应用技术大学 | Self-lubricating wear-resistant flux-cored wire containing nickel-coated graphite component and welding method thereof |
| CN114231855A (en) * | 2021-12-30 | 2022-03-25 | 武汉理工大学 | Preparation method of arc fuse of ODS steel |
| CN114231855B (en) * | 2021-12-30 | 2022-12-23 | 武汉理工大学 | Preparation method of arc fuse of ODS steel |
| CN115008064A (en) * | 2022-06-22 | 2022-09-06 | 内蒙金属材料研究所 | Welding wire, preparation method and application thereof, and welding method |
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