CN104741823B - 0Cr13Ni5Mo rustless steel self-shielded welding wire and preparation method thereof - Google Patents
0Cr13Ni5Mo rustless steel self-shielded welding wire and preparation method thereof Download PDFInfo
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- CN104741823B CN104741823B CN201510101255.1A CN201510101255A CN104741823B CN 104741823 B CN104741823 B CN 104741823B CN 201510101255 A CN201510101255 A CN 201510101255A CN 104741823 B CN104741823 B CN 104741823B
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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
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/3053—Fe as the principal constituent
-
- 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
- B23K35/368—Selection of non-metallic compositions of core materials either alone or conjoint with selection of soldering or welding materials
-
- 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
0Cr13Ni5Mo rustless steel self-shielded welding wire, is made up of crust and medicated core, and medicated core is the most composed of the following components: chromium 5 12%, manganese 4 6%, ferrosilicon 5 10%, molybdenum 2.5 5%, CaF215 20%, SiO27 10%, TiO24 8%, CaCO34 7%, Li2CO35 8%, Al Mg powder 7 10%, remaining is ferrum.Its preparation method: by CaF2, SiO2, TiO2, CaCO3, Li2CO3, with chromium, manganese, ferrosilicon, molybdenum after sintering after the addition binding agent mixing of Al Mg powder, to add in U-type groove after ferrum mixing, roll Guan Bi, drawing stretches, and dish becomes disk, packs.Welding wire of the present invention, it is possible to obtain martensitic stain less steel seam organization, welding point has excellent mechanical property and corrosion resisting property, it is achieved that the stainless welding of 0Cr13Ni5Mo.
Description
Technical field
The invention belongs to technical field of welding materials, be specifically related to a kind of 0Cr13Ni5Mo rustless steel with certainly
Protection welding wire, the invention still further relates to the preparation method of this welding wire.
Background technology
The metallographic structure of martensitic stain less steel is martensite, the mass fraction 12%-27% of chromium in this kind of steel,
The mass fraction of carbon reaches as high as 1.0%, improves intensity and the hardness of steel.The most commonly used horse
Family name's body rustless steel can be divided into Cr13 type martensitic stain less steel and Low Carbon Martensite Stainless Steel.
Crl3 type martensitic stain less steel, uses mainly as the rustless steel with general corrosion resistance, with
Being continuously increased of carbon content, its intensity improves with hardness, and plasticity reduces with toughness, as welding steel,
Carbon content is usually no more than 0.15%.In addition to there is certain decay resistance, also there is higher height
In temperature intensity and high temperature oxidation resistance, high-temperature and pressure pipeline in power station equipment and aero-engine wide
General application.
Low Carbon Martensite Stainless Steel is on the basis of Cr13, while carbon content is greatly lowered, and will
Ni content controls the scope at 4%-6%, and the class being additionally added the alloying elements such as a small amount of Mo, Ti is high-strength
Martensite steel, in addition to having certain decay resistance, also has good anti-cavitation, polishing machine,
Therefore it is widely used in the hydraulic turbine and large pump.
0Cr13Ni5Mo is a kind of Low Carbon Martensite Stainless Steel, has good acid resistance and weldability.
Being widely used in rotary wheel of water turbine, pump case, valve body, impeller, on power station pressure pipes.Develop a kind of horse
The flux-cored wire of family name body rustless steel 0Cr13Ni5Mo coupling, can develop 0Cr13Ni5Mo stainless further
The use of steel, has given play to its economic benefit.
Summary of the invention
It is an object of the invention to provide a kind of 0Cr13Ni5Mo rustless steel self-shielded welding wire, it is possible to obtain
Martensitic stain less steel seam organization, welding point has excellent mechanical property and corrosion resisting property.
It is a further object to provide the system of a kind of 0Cr13Ni5Mo rustless steel self-shielded welding wire
Preparation Method.
The technical solution adopted in the present invention is, 0Cr13Ni5Mo rustless steel self-shielded welding wire, by outward
Skin and medicated core composition, medicated core is the most composed of the following components: hafnium metal powfer 5%-12%, gold
Belong to manganese powder 4%-6%, ferrosilicon 5%-10%, molybdenum powder 2.5%-5%, CaF215%-20%, SiO27%-10%,
TiO24%-8%, CaCO34%-7%, Li2CO35%-8%, Al-Mg alloyed powder 7%-10%, remaining
For ferrum, above constituent mass percentage ratio sum is 100%.
The feature of the present invention also resides in:
Skin material is 304 stainless steel belts.
In this welding wire, the filling rate (mass ratio) of medicated core is 25%-28%.
A diameter of 1.2-2.0mm of this welding wire.
Another technical scheme of the present invention is, 0Cr13Ni5Mo rustless steel self-shielded welding wire
Preparation method, specifically comprise the following steps that
Step 1, weighs hafnium metal powfer 5%-12%, manganese powder 4%-6% the most respectively,
Ferrosilicon 5%-10%, molybdenum powder 2.5%-5%, CaF215%-20%, SiO27%-10%, TiO24%-8%,
CaCO34%-7%, Li2CO35%-8%, Al-Mg alloyed powder 7%-10%, remaining is ferrum, above group
Point mass percent sum is 100%；
Step 2, the CaF that step 1 is weighed2, SiO2, TiO2, CaCO3, Li2CO3, Al-Mg
Alloyed powder adds sodium silicate binder mix homogeneously, is then placed within heating furnace sintering, sieves after pulverizing,
The mixed powder of screening granularity 80-100 mesh；
Step 3, the hafnium metal powfer that step 1 is claimed, manganese powder, ferrosilicon, molybdenum powder, iron powder and step
Rapid 2 mixed powders prepared are sufficiently stirred for, put into after mixing drying oven is dried 200 degrees Celsius, 2 little
Time, obtain medicated core powder；
Step 4, what 304 stainless steel belts were placed on flux-cored wire forming machine puts on band machine, by becoming
304 stainless steel belts are rolled into U-type groove by type machine, then add what step 3 obtained in U-type groove
Medicated core powder, the filling rate controlling medicated core powder is 25%-28%, then U-type groove is ground by forming machine
Press off conjunction, and be drawn to 1.2mm-2.0mm, obtain flux-cored wire；
Step 5, the flux-cored wire finally step 4 prepared with wire drawing machine stretches, and dish becomes disk, seals
Pack.
The feature of the present invention also resides in,
In step 2, the addition of sodium silicate binder is the 20% of medicated core powder gross weight.
In step 2, the temperature of sintering is 500-650 DEG C, and the time is 3-4h.
The invention has the beneficial effects as follows,
0Cr13Ni5Mo rustless steel self-shielded welding wire the most of the present invention, it is possible to obtain martensitic stain less steel weldering
Seam tissue, welding point has excellent mechanical property and corrosion resisting property, it is achieved that 0Cr13Ni5Mo
Stainless welding.
0Cr13Ni5Mo rustless steel self-shielded welding wire the most of the present invention, is not required to additional protective gas during welding,
Can realize self-shield welding, have good welding usability, spatter is few, and weld fumes is few；Suitable
For automatic welding device, there is higher production efficiency.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the present invention is described in detail.
0Cr13Ni5Mo rustless steel self-shielded welding wire of the present invention, is made up of crust and medicated core, and medicated core is pressed
Mass percent is composed of the following components: hafnium metal powfer 5%-12%, manganese powder 4%-6%, ferrosilicon
5%-10%, molybdenum powder 2.5%-5%, CaF215%-20%, SiO27%-10%, TiO24%-8%,
CaCO34%-7%, Li2CO35%-8%, Al-Mg alloyed powder 7%-10%, remaining is ferrum, above group
Point mass percent sum is 100%.Skin material is 304 stainless steel belts.
In this welding wire, the filling rate (mass ratio) of medicated core is 25%-28%.This welding wire a diameter of
1.2-2.0mm。
The preparation method of above-mentioned 0Cr13Ni5Mo rustless steel self-shielded welding wire, specifically comprises the following steps that
Step 1, weighs hafnium metal powfer 5%-12%, manganese powder 4%-6% the most respectively,
Ferrosilicon 5%-10%, molybdenum powder 2.5%-5%, CaF215%-20%, SiO27%-10%, TiO24%-8%,
CaCO34%-7%, Li2CO35%-8%, Al-Mg alloyed powder 7%-10%, remaining is ferrum, above group
Point mass percent sum is 100%；
Step 2, the CaF that step 1 is weighed2, SiO2, TiO2, CaCO3, Li2CO3, Al-Mg
Alloyed powder adds 20% sodium silicate binder mix homogeneously of medicated core powder gross weight, is then placed within heating
Sintering in stove, temperature is 500-650 DEG C, and the time is 3-4h, sieves after pulverizing, and screens granularity 80-100
Purpose mixed powder；
Step 3, the hafnium metal powfer that step 1 is claimed, manganese powder, ferrosilicon, molybdenum powder, iron powder and step
Rapid 2 mixed powders prepared are sufficiently stirred for, put into after mixing drying oven is dried 200 degrees Celsius, 2 little
Time, obtain medicated core powder；
Step 4, what 304 stainless steel belts were placed on flux-cored wire forming machine puts on band machine, by becoming
304 stainless steel belts are rolled into U-type groove by type machine, then add what step 3 obtained in U-type groove
Medicated core powder, the filling rate controlling medicated core powder is 25%-28%, then U-type groove is ground by forming machine
Press off conjunction, and be drawn to 1.2mm-2.0mm, obtain flux-cored wire；
Step 5, the flux-cored wire finally step 4 prepared with wire drawing machine stretches, and dish becomes disk, seals
Pack.
0Cr13Ni5Mo rustless steel self-shielded welding wire of the present invention is applicable to flux cored wire arc welding
(FCAW), welding current is 180-240A, and voltage is 20-25V, is not required to additional protective gas.
The effect of each component in medicated core:
1. chromium, silicon, molybdenum is ferrite former, with the use of promoting to form ferrum element in weld metal
Body, manganese, is austenite former, can promote to be formed in weld metal austenite.This two metalloids powder
Through rational proportioning, weld seam can be made to be transformed into martensitic structure.
2. chromium can improve the corrosion resistance of weld seam, makes welding point meet stainless use requirement.
3. silicon, manganese has certain deoxidation effect, can purify weld seam.Additionally, silicon also has anti-tempering
The effect softened, is that weld seam keeps certain intensity in follow-up heat treatment process.Manganese also has raising
The effect of weld seam quenching degree, is that weld seam is all transformed into martensite during cooling.
4.CaF2, SiO2, TiO2All there is the effect of slag making, produce slag during welding and molten bath is had guarantor
Protect effect.CaF2, SiO2, TiO2Also have simultaneously and adjust viscosity coefficient of dross and the effect of basicity.
5.CaCO3, Li2CO3There is the effect of gas making, produce carbon dioxide during welding, to molten bath
Protect.
6.Al-Mg alloyed powder has the effect of deoxygenation, is easily combined with oxygen, thus protects it during welding
His component.
7.Fe is to supplement residual mass, makes the gross mass of medicated core reach 100%.
Embodiment 1
Step 1, weighs hafnium metal powfer 70g, manganese powder 40g, ferrosilicon 70g, molybdenum powder 40g respectively,
CaF2150g, SiO270g, TiO240g, CaCO340g, Li2CO360g, Al-Mg powder 80g, iron powder
340g；
Step 2, the CaF that step 1 is weighed2, SiO2, TiO2, CaCO3, Li2CO3, Al-Mg
Powder adds 200g sodium silicate binder mix homogeneously, is then placed within heating furnace sintering, sintering time
It is 600 DEG C, time 3h, sieve after pulverizing, the mixed powder between screening granularity 80-100 mesh；
Step 3, the hafnium metal powfer that step 1 is claimed, manganese powder, ferrosilicon, molybdenum powder, iron powder and step
Rapid 2 mixed powders prepared are sufficiently stirred for, put into after mixing drying oven is dried 200 degrees Celsius, 2 little
Time, obtain medicated core powder；
Step 4, what 304 stainless steel belts were placed on flux-cored wire forming machine puts on band machine, by becoming
304 stainless steel belts are rolled into U-type groove by type machine, then add what step 3 obtained in U-type groove
Medicated core powder, the filling rate controlling medicated core powder is 27%, then U-type groove is rolled by forming machine and close
Close, and be drawn to 1.4mm, obtain flux-cored wire；
Step 5, the flux-cored wire finally step 4 prepared with wire drawing machine stretches, and dish becomes disk, seals
Pack.
With the welding wire of embodiment 1 preparation, using flux cored wire arc welding (FCAW), welding current is
180-200A, voltage is 22V, is not required to additional protective gas.The tensile strength of welding point is 786Mpa,
Yield limit is 681Mpa, and the contraction percentage of area is 62%, ballistic work 136J, and joint performance meets
The use requirement of 0Cr13Ni5Mo.
Embodiment 2
Step 1, weighs hafnium metal powfer 100g, manganese powder 50g, ferrosilicon 50g, molybdenum powder 50g respectively,
CaF2150g, SiO270g, TiO270g, CaCO350g, Li2CO350g, Al-Mg powder 70g, iron powder
290g；
Step 2, the CaF that step 1 is weighed2, SiO2, TiO2, CaCO3, Li2CO3, Al-Mg
Powder adds 200g sodium silicate binder mix homogeneously, is then placed within heating furnace sintering, sintering time
It is 500 DEG C, time 4h, sieve after pulverizing, the mixed powder between screening granularity 80-100 mesh；
Step 3, the hafnium metal powfer that step 1 is claimed, manganese powder, ferrosilicon, molybdenum powder, iron powder and step
Rapid 2 mixed powders prepared are sufficiently stirred for, put into after mixing drying oven is dried 200 degrees Celsius, 2 little
Time, obtain medicated core powder；
Step 4, what 304 stainless steel belts were placed on flux-cored wire forming machine puts on band machine, by becoming
304 stainless steel belts are rolled into U-type groove by type machine, then add what step 3 obtained in U-type groove
Medicated core powder, the filling rate controlling medicated core powder is 27%, then U-type groove is rolled by forming machine and close
Close, and be drawn to 1.2mm, obtain flux-cored wire；
Step 5, the flux-cored wire finally step 4 prepared with wire drawing machine stretches, and dish becomes disk, seals
Pack.
With the welding wire of embodiment 2 preparation, using flux cored wire arc welding (FCAW), welding current is
180-200A, voltage is 22V, is not required to additional protective gas.The tensile strength of welding point is 790Mpa,
Yield limit is 680Mpa, and the contraction percentage of area is 56%, ballistic work 130J, and joint performance meets
The use requirement of 0Cr13Ni5Mo.
Embodiment 3
Step 1, weighs hafnium metal powfer 120g, manganese powder 60g, ferrosilicon 100g, molybdenum powder 25g respectively,
CaF2160g, SiO280g, TiO250g, CaCO370g, Li2CO360g, Al-Mg powder 100g, ferrum
Powder 175g；
Step 2, the CaF that step 1 is weighed2, SiO2, TiO2, CaCO3, Li2CO3, Al-Mg
Powder adds 200g sodium silicate binder mix homogeneously, is then placed within heating furnace sintering, sintering time
It is 650 DEG C, time 3.5h, sieve after pulverizing, the mixed powder between screening granularity 80-100 mesh；
Step 3, the hafnium metal powfer that step 1 is claimed, manganese powder, ferrosilicon, molybdenum powder, iron powder and step
Rapid 2 mixed powders prepared are sufficiently stirred for, put into after mixing drying oven is dried 200 degrees Celsius, 2 little
Time, obtain medicated core powder；
Step 4, what 304 stainless steel belts were placed on flux-cored wire forming machine puts on band machine, by becoming
304 stainless steel belts are rolled into U-type groove by type machine, then add what step 3 obtained in U-type groove
Medicated core powder, the filling rate controlling medicated core powder is 27%, then U-type groove is rolled by forming machine and close
Close, and be drawn to 1.6mm, obtain flux-cored wire；
Step 5, the flux-cored wire finally step 4 prepared with wire drawing machine stretches, and dish becomes disk, seals
Pack.
With the welding wire of embodiment 3 preparation, using flux cored wire arc welding (FCAW), welding current is
200-220A, voltage is 22V, is not required to additional protective gas.The tensile strength of welding point is 812Mpa,
Yield limit is 731Mpa, and the contraction percentage of area is 56%, ballistic work 140J, and joint performance meets
The use requirement of 0Cr13Ni5Mo.
Embodiment 4
Step 1, weighs hafnium metal powfer 80g, manganese powder 40g, ferrosilicon 90g, molybdenum powder 35g respectively,
CaF2180g, SiO290g, TiO260g, CaCO360g, Li2CO380g, Al-Mg powder 80g, iron powder
205g；
Step 2, the CaF that step 1 is weighed2, SiO2, TiO2, CaCO3, Li2CO3, Al-Mg
Powder adds 200g sodium silicate binder mix homogeneously, is then placed within heating furnace sintering, sintering time
It is 550 DEG C, time 3h, sieve after pulverizing, the mixed powder between screening granularity 80-100 mesh；
Step 3, the hafnium metal powfer that step 1 is claimed, manganese powder, ferrosilicon, molybdenum powder, iron powder and step
Rapid 2 mixed powders prepared are sufficiently stirred for, put into after mixing drying oven is dried 200 degrees Celsius, 2 little
Time, obtain medicated core powder；
Step 4, what 304 stainless steel belts were placed on flux-cored wire forming machine puts on band machine, by becoming
304 stainless steel belts are rolled into U-type groove by type machine, then add what step 3 obtained in U-type groove
Medicated core powder, the filling rate controlling medicated core powder is 27%, then U-type groove is rolled by forming machine and close
Close, and be drawn to 1.2mm, obtain flux-cored wire；
Step 5, the flux-cored wire finally step 4 prepared with wire drawing machine stretches, and dish becomes disk, seals
Pack.
With the welding wire of embodiment 4 preparation, using flux cored wire arc welding (FCAW), welding current is
200-220A, voltage is 20V, is not required to additional protective gas.The tensile strength of welding point is 782Mpa,
Yield limit is 691Mpa, and the contraction percentage of area is 66%, ballistic work 136J, and joint performance meets
The use requirement of 0Cr13Ni5Mo.
Embodiment 5
Step 1, weighs hafnium metal powfer 50g, manganese powder 50g, ferrosilicon 70g, molybdenum powder 40g respectively,
CaF2200g, SiO2100g, TiO280g, CaCO340g, Li2CO370g, Al-Mg powder 80g, ferrum
Powder 220g；
Step 2, the CaF that step 1 is weighed2, SiO2, TiO2, CaCO3, Li2CO3, Al-Mg
Powder adds 200g sodium silicate binder mix homogeneously, is then placed within heating furnace sintering, sintering time
It is 600 DEG C, time 3.5h, sieve after pulverizing, the mixed powder between screening granularity 80-100 mesh；
Step 3, the hafnium metal powfer that step 1 is claimed, manganese powder, ferrosilicon, molybdenum powder, iron powder and step
Rapid 2 mixed powders prepared are sufficiently stirred for, put into after mixing drying oven is dried 200 degrees Celsius, 2 little
Time, obtain medicated core powder；
Step 4, what 304 stainless steel belts were placed on flux-cored wire forming machine puts on band machine, by becoming
304 stainless steel belts are rolled into U-type groove by type machine, then add what step 3 obtained in U-type groove
Medicated core powder, the filling rate controlling medicated core powder is 27%, then U-type groove is rolled by forming machine and close
Close, and be drawn to 1.2mm, obtain flux-cored wire；
Step 5, the flux-cored wire finally step 4 prepared with wire drawing machine stretches, and dish becomes disk, seals
Pack.
With the welding wire of embodiment 5 preparation, using flux cored wire arc welding (FCAW), welding current is
200-220A, voltage is 20V, is not required to additional protective gas.The tensile strength of welding point is 780Mpa,
Yield limit is 701Mpa, and the contraction percentage of area is 61%, ballistic work 137J, and joint performance meets
The use requirement of 0Cr13Ni5Mo.
Claims (7)
1.0Cr13Ni5Mo rustless steel self-shielded welding wire, it is characterised in that be made up of crust and medicated core,
Medicated core is the most composed of the following components: hafnium metal powfer 5%-12%, manganese powder 4%-6%,
Ferrosilicon 5%-10%, molybdenum powder 2.5%-5%, CaF215%-20%, SiO27%-10%, TiO24%-8%,
CaCO34%-7%, Li2CO35%-8%, Al-Mg alloyed powder 7%-10%, remaining is ferrum, above group
Point mass percent sum is 100%.
0Cr13Ni5Mo rustless steel self-shielded welding wire the most according to claim 1, its feature exists
In, skin material is 304 stainless steel belts.
0Cr13Ni5Mo rustless steel self-shielded welding wire the most according to claim 1, its feature exists
In, in this welding wire, the mass ratio of the filling rate of medicated core is 25%-28%.
0Cr13Ni5Mo rustless steel self-shielded welding wire the most according to claim 1, its feature exists
In, a diameter of 1.2-2.0mm of this welding wire.
5.0Cr13Ni5Mo the preparation method of rustless steel self-shielded welding wire, it is characterised in that specifically walk
Rapid as follows:
Step 1, weighs hafnium metal powfer 5%-12%, manganese powder 4%-6% the most respectively,
Ferrosilicon 5%-10%, molybdenum powder 2.5%-5%, CaF215%-20%, SiO27%-10%, TiO24%-8%,
CaCO34%-7%, Li2CO35%-8%, Al-Mg alloyed powder 7%-10%, remaining is ferrum, above group
Point mass percent sum is 100%；
Step 2, the CaF that step 1 is weighed2, SiO2, TiO2, CaCO3, Li2CO3, Al-Mg
Alloyed powder adds sodium silicate binder mix homogeneously, is then placed within heating furnace sintering, sieves after pulverizing,
The mixed powder of screening granularity 80-100 mesh；
Step 3, the hafnium metal powfer that step 1 is claimed, manganese powder, ferrosilicon, molybdenum powder, iron powder and step
Rapid 2 mixed powders prepared are sufficiently stirred for, put into after mixing drying oven is dried 200 degrees Celsius, 2 little
Time, obtain medicated core powder；
Step 4, what 304 stainless steel belts were placed on flux-cored wire forming machine puts on band machine, by becoming
304 stainless steel belts are rolled into U-type groove by type machine, then add what step 3 obtained in U-type groove
Medicated core powder, the mass ratio of the filling rate controlling medicated core powder is 25%-28%, then by forming machine by U
Type groove rolls Guan Bi, and is drawn to 1.2mm-2.0mm, obtains flux-cored wire；
Step 5, the flux-cored wire finally step 4 prepared with wire drawing machine stretches, and dish becomes disk, seals
Pack.
The preparation method of 0Cr13Ni5Mo rustless steel self-shielded welding wire the most according to claim 5,
It is characterized in that, in step 2, the addition of sodium silicate binder is the 20% of medicated core powder gross weight.
The preparation method of 0Cr13Ni5Mo rustless steel self-shielded welding wire the most according to claim 5,
It is characterized in that, in step 2, the temperature of sintering is 500-650 DEG C, and the time is 3-4h.
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| CN201510101255.1A CN104741823B (en) | 2015-03-09 | 2015-03-09 | 0Cr13Ni5Mo rustless steel self-shielded welding wire and preparation method thereof |
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| CN201510101255.1A CN104741823B (en) | 2015-03-09 | 2015-03-09 | 0Cr13Ni5Mo rustless steel self-shielded welding wire and preparation method thereof |
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| CN105921912B (en) * | 2016-06-21 | 2019-01-11 | 西安理工大学 | 1Cr12Ni2W1MoV stainless steel self-protection flux-cored wire and preparation method thereof |
| CN107378304B (en) * | 2017-07-12 | 2019-09-27 | 西安理工大学 | PH13-8Mo stainless steel gas shielded type welding wire and preparation method thereof |
| CN107335942B (en) * | 2017-07-12 | 2019-09-27 | 西安理工大学 | PH13-8Mo stainless steel Self-protecting welding wire and preparation method thereof |
| CN108296667B (en) * | 2018-02-12 | 2020-05-29 | 青岛润乾高新科技有限公司 | Flux-cored wire for underwater welding and preparation method |
| CN108465976A (en) * | 2018-04-11 | 2018-08-31 | 丹阳市华龙特钢有限公司 | A kind of crack resistence stainless steel welding stick and preparation method thereof |
| CN109226995A (en) * | 2018-10-31 | 2019-01-18 | 首钢集团有限公司 | A kind of self-shield flux-cored welding wire for overlaying welding |
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2015
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