CN104759788B - 0Cr13Ni5Mo steel metal flux-cored wires and preparation method thereof - Google Patents
0Cr13Ni5Mo steel metal flux-cored wires and preparation method thereof Download PDFInfo
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- CN104759788B CN104759788B CN201510102474.1A CN201510102474A CN104759788B CN 104759788 B CN104759788 B CN 104759788B CN 201510102474 A CN201510102474 A CN 201510102474A CN 104759788 B CN104759788 B CN 104759788B
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- flux
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- medicine core
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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
- B23K35/3066—Fe as the principal constituent with Ni as next major 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
- B23K35/02—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
- 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
- B23K35/406—Filled tubular wire or rods
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Nonmetallic Welding Materials (AREA)
Abstract
The invention discloses a kind of 0Cr13Ni5Mo steel metal flux-cored wire, it is made up of crust and medicine core, medicine core is composed of the following components by mass percentage：Chromium 55 60%, manganese 2.5 6%, ferrosilicon 4 10%, nickel 20 25%, molybdenum 2.5 5%, remaining is iron.The invention also discloses its preparation method：Dried after medicine core material is mixed, be added to mild steel steel band and be rolled into U-type groove and roll closure, drawing, stretch, disk packs into disk.Flux-cored wire of the present invention, can obtain martensitic stain less steel seam organization, and welding point has excellent mechanical property and corrosion resisting property；Face of weld is bright and clean smooth, postwelding without cleaning, can continuous sequence, effectively increase welding production efficiency；It is suitable for automatic welding device, there is higher production efficiency；It is easy to operate and preparation method is simple, it is adapted to mass production.
Description
Technical field
The invention belongs to technical field of welding materials, and in particular to a kind of 0Cr13Ni5Mo steel metal flux-cored wire,
The invention also discloses the preparation method of the flux-cored wire.
Background technology
The metallographic structure of martensitic stain less steel is martensite.The mass fraction 12%-27% of chromium, the quality of carbon in this kind of steel
Fraction reaches as high as 1.0%, improves the intensity and hardness of steel.Martensitic stain less steel commonly used at present can be divided into Cr13 types
Martensitic stain less steel and Low Carbon Martensite Stainless Steel.
Crl3 type martensitic stain less steels, used mainly as the stainless steel with general corrosion resistance, with carbon content
Be continuously increased, its intensity and hardness are improved, and plasticity is reduced with toughness, and as welding steel, carbon content is usually no more than
0.15%.In addition to certain decay resistance, also there is higher elevated temperature strength and high temperature oxidation resistance, in power station
Extensive use in high-temperature and pressure pipeline and aero-engine in equipment.
Low Carbon Martensite Stainless Steel is on the basis of Cr13, and while carbon content is greatly lowered, Ni contents are controlled
In 4%-6% scope, a kind of high strength martensitic steel of the alloying elements such as a small amount of Mo, Ti is additionally added, except with certain resistance to
Outside corrosive nature, also with 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.Extensive use
In rotary wheel of water turbine, pump case, valve body, impeller, on power station pressure pipes.Develop a kind of martensitic stain less steel 0Cr13Ni5Mo matchings
Flux-cored wire, can further develop the use of 0Cr13Ni5Mo stainless steels, give play to its economic benefit.
The content of the invention
It is an object of the invention to provide a kind of 0Cr13Ni5Mo steel metal flux-cored wire, face of weld is bright and clean smooth,
Postwelding without cleaning, can continuous sequence, effectively increase welding production efficiency.
It is a further object to provide a kind of preparation method of 0Cr13Ni5Mo steel metal flux-cored wire.
The technical solution adopted in the present invention is 0Cr13Ni5Mo steel metal flux-cored wires, by crust and medicine core group
Into medicine core is metal-powder, composed of the following components by mass percentage：Hafnium metal powfer 55%-60%, manganese powder 2.5%-
6%, ferrosilicon 4%-10%, nickel powder 20%-25%, molybdenum powder 2.5%-5%, remaining is iron, above constituent mass percentage sum
For 100%.
The features of the present invention also resides in：
Skin material is mild steel steel band, wherein impurity element (w%) P≤0.009%, S≤0.008%.
The filling rate (mass ratio) of medicine core is 25%-28% in the flux-cored wire.
A diameter of 1.2-2.0mm of the flux-cored wire.
Another technical scheme of the present invention is the preparation side of 0Cr13Ni5Mo steel metal flux-cored wires
Method, comprise the following steps that：
Step 1, hafnium metal powfer 55%-60%, manganese powder 2.5%-6%, ferrosilicon are weighed respectively by mass percentage
4%-10%, nickel powder 20%-25%, molybdenum powder 2.5%-5%, remaining is iron, and above constituent mass percentage sum is 100%；
Step 2, material step 1 weighed is well mixed, and is then placed within drying oven and is dried, and the temperature of drying is
200-300 DEG C, time 2-2.5h, obtain medicine core powder；
Step 3, mild steel steel band is placed on the putting on band machine of flux-cored wire forming machine, by forming machine by mild steel steel
Band is rolled into U-type groove, and the medicine core powder that step 2 obtains then is added into U-type groove, and the filling rate for controlling medicine core powder is
25%-28%, then U-type groove is rolled by closure by forming machine, and 1.2mm-2.0mm is drawn to, obtain flux-cored wire；
Step 4, the flux-cored wire finally prepared step 3 with wire drawing machine stretches, and disk packs into disk.
The invention has the advantages that
1. 0Cr13Ni5Mo steel metal flux-cored wire of the present invention, martensitic stain less steel seam organization can be obtained, weld
Joint has excellent mechanical property and corrosion resisting property, realizes the welding of 0Cr13Ni5Mo martensitic stain less steels.
2. 0Cr13Ni5Mo steel metal flux-cored wire of the present invention, having good welding usability, spatter is few,
Weld fumes is few, without slag inclusion problem in welding process.
3. 0Cr13Ni5Mo steel metal flux-cored wire of the present invention, face of weld is bright and clean smooth, and postwelding, can without cleaning
Continuous sequence, effectively increase welding production efficiency；It is suitable for automatic welding device, there is higher production efficiency.
4. the preparation method of 0Cr13Ni5Mo steel metal flux-cored wire of the present invention, technique is simple, easy to operate, is adapted to
Mass production.
Embodiment
With reference to embodiment, the present invention is described in detail.
0Cr13Ni5Mo steel metal flux-cored wire of the present invention, is made up of crust and medicine core, and medicine core is metal-powder, is pressed
Mass percent is composed of the following components：Hafnium metal powfer 55%-60%, manganese powder 2.5%-6%, ferrosilicon 4%-10%, nickel
Powder 20%-25%, molybdenum powder 2.5%-5%, remaining is iron, and above constituent mass percentage sum is 100%.Skin material is low
Carbon steel steel band, wherein impurity element (w%) P≤0.009%, S≤0.008%.
The filling rate (mass ratio) of medicine core is 25%-28% in the flux-cored wire.
A diameter of 1.2-2.0mm of the flux-cored wire.
The preparation method of above-mentioned 0Cr13Ni5Mo steel metal flux-cored wire, is comprised the following steps that：
Step 1, hafnium metal powfer 55%-60%, manganese powder 2.5%-6%, ferrosilicon are weighed respectively by mass percentage
4%-10%, nickel powder 20%-25%, molybdenum powder 2.5%-5%, remaining is iron, and above constituent mass percentage sum is 100%；
Step 2, material step 1 weighed is well mixed, and is then placed within drying oven and is dried, and the temperature of drying is
200-300 DEG C, time 2-2.5h, obtain medicine core powder；
Step 3, mild steel steel band is placed on the putting on band machine of flux-cored wire forming machine, by forming machine by mild steel steel
Band is rolled into U-type groove, and the medicine core powder that step 2 obtains then is added into U-type groove, and the filling rate for controlling medicine core powder is
25%-28%, then U-type groove is rolled by closure by forming machine, and 1.2mm-2.0mm is drawn to, obtain flux-cored wire；
Step 4, the flux-cored wire finally prepared step 3 with wire drawing machine stretches, and disk packs into disk.
0Cr13Ni5Mo steel metal flux-cored wire of the present invention, suitable for gas metal-arc welding (GMAW), welding
Electric current is 180-220A, voltage 18-22V, protective gas CO2, Ar, or Ar20%-CO280% mixed gas, gas flow rate
For 15-20L/min.
The effect of each component in medicine core：
1. chromium, silicon, molybdenum are ferrite formers, with the use of can promote to form ferrite, manganese in weld metal, nickel is
Austenite former, with the use of can promote to form austenite in weld metal.This two metalloids powder matches by rational,
Weld seam can be made to be transformed into martensitic structure.
2. chromium can improve the corrosion resistance of weld seam, welding point is set to meet the requirement of stainless steel.
3. silicon, manganese has certain deoxidation effect, can purify weld seam.In addition, silicon also has the function that anti-temper softening,
It is that weld seam keeps certain intensity in follow-up heat treatment process.Manganese also has the function that to improve weld seam quenching degree, is weld seam
All it is transformed into martensite during cooling.
4. nickel has crystal grain thinning, the effect of welding seam toughness is improved.
5. iron is used for supplementing residuals weight, the total amount of medicinal powder is set to reach 100%.
Embodiment 1
Step 1, hafnium metal powfer 55g, manganese powder 3g, ferrosilicon 8g, nickel powder 22g, molybdenum powder 3g, iron 9g are weighed respectively；
Step 2, powder step 1 weighed is well mixed, and is then placed within drying oven and is dried, and the temperature of drying is
200 DEG C, time 2h, obtain medicine core powder；
Step 3, mild steel steel band is placed on the putting on band machine of flux-cored wire forming machine, by forming machine by mild steel steel
Band is rolled into U-type groove, and the medicine core powder that step 2 obtains then is added into U-type groove, and the filling rate for controlling medicine core powder is
28%, then U-type groove is rolled by closure by forming machine, and 1.2mm is drawn to, obtain flux-cored wire；
Step 4, the flux-cored wire finally prepared step 3 with wire drawing machine stretches, and disk packs into disk.
The flux-cored wire prepared with embodiment 1, using gas metal-arc welding (GMAW), welding current 180-
200A, voltage 22V, protective gas CO2, gas flow rate 15L/min.Welding point tensile strength is 810Mpa, surrender
The limit is 700Mpa, the contraction percentage of area 52%, ballistic work 130J.Performance meets making for martensitic stain less steel 0Cr13Ni5Mo
With requiring.
Embodiment 2
Step 1, weigh respectively：Hafnium metal powfer 57g, manganese powder 2.5g, ferrosilicon 4g, nickel powder 23g, molybdenum powder 2.5g, iron
11g；
Step 2, powder step 1 weighed is well mixed, and is then placed within drying oven and is dried, and the temperature of drying is
300 DEG C, time 2h, obtain medicine core powder；
Step 3, mild steel steel band is placed on the putting on band machine of flux-cored wire forming machine, by forming machine by mild steel steel
Band is rolled into U-type groove, and the medicine core powder that step 2 obtains then is added into U-type groove, and the filling rate for controlling medicine core powder is
27%, then U-type groove is rolled by closure by forming machine, and 1.4mm is drawn to, obtain flux-cored wire；
Step 4, the flux-cored wire finally prepared step 3 with wire drawing machine stretches, and disk packs into disk.
The flux-cored wire prepared with embodiment 2, using gas metal-arc welding (GMAW), welding current 190-
200A, voltage 22V, protective gas CO2, gas flow rate 15L/min.Welding point tensile strength is 8210Mpa, surrender
The limit is 710Mpa, the contraction percentage of area 54%, ballistic work 125J.Performance meets making for martensitic stain less steel 0Cr13Ni5Mo
With requiring.
Embodiment 3
Step 1, hafnium metal powfer 60g, manganese powder 4g, ferrosilicon 6g, nickel powder 20g, molybdenum powder 4g, iron 6g are weighed respectively；
Step 2, powder step 1 weighed is well mixed, and is then placed within drying oven and is dried, and the temperature of drying is
250 DEG C, time 2.5h, obtain medicine core powder；
Step 3, mild steel steel band is placed on the putting on band machine of flux-cored wire forming machine, by forming machine by mild steel steel
Band is rolled into U-type groove, and the medicine core powder that step 2 obtains then is added into U-type groove, and the filling rate for controlling medicine core powder is
25%, then U-type groove is rolled by closure by forming machine, and 1.6mm is drawn to, obtain flux-cored wire；
Step 4, the flux-cored wire finally prepared step 3 with wire drawing machine stretches, and disk packs into disk.
The flux-cored wire prepared with embodiment 3, using gas metal-arc welding (GMAW), welding current 200-
220A, voltage 20V, protective gas CO2, gas flow rate 17L/min.Welding point tensile strength is 786Mpa, surrender
The limit is 688Mpa, the contraction percentage of area 61%, ballistic work 110J.Performance meets making for martensitic stain less steel 0Cr13Ni5Mo
With requiring.
Embodiment 4
Step 1, hafnium metal powfer 58g, manganese powder 6g, ferrosilicon 5g, nickel powder 22g, molybdenum powder 2.5g, iron 6.5g are weighed respectively；
Step 2, powder step 1 weighed is well mixed, and is then placed within drying oven and is dried, and the temperature of drying is
280 DEG C, time 2.3h, obtain medicine core powder；
Step 3, mild steel steel band is placed on the putting on band machine of flux-cored wire forming machine, by forming machine by mild steel steel
Band is rolled into U-type groove, and the medicine core powder that step 2 obtains then is added into U-type groove, and the filling rate for controlling medicine core powder is
26%, then U-type groove is rolled by closure by forming machine, and 2.0mm is drawn to, obtain flux-cored wire；
Step 4, the flux-cored wire finally prepared step 3 with wire drawing machine stretches, and disk packs into disk.
The flux-cored wire prepared with embodiment 4, using gas metal-arc welding (GMAW), welding current 220A, electricity
Press as 20V, protective gas CO2, gas flow rate 20L/min.Welding point tensile strength is 781Mpa, and yield limit is
686Mpa, the contraction percentage of area 62%, ballistic work 127J.The use that performance meets martensitic stain less steel 0Cr13Ni5Mo will
Ask.
Embodiment 5
Step 1, hafnium metal powfer 56g, manganese powder 4g, ferrosilicon 10g, nickel powder 21g, molybdenum powder 5g, iron 4g are weighed respectively；
Step 2, powder step 1 weighed is well mixed, and is then placed within drying oven and is dried, and the temperature of drying is
220 DEG C, time 2.8h, obtain medicine core powder；
Step 3, mild steel steel band is placed on the putting on band machine of flux-cored wire forming machine, by forming machine by mild steel steel
Band is rolled into U-type groove, and the medicine core powder that step 2 obtains then is added into U-type groove, and the filling rate for controlling medicine core powder is
28%, then U-type groove is rolled by closure by forming machine, and 1.2mm is drawn to, obtain flux-cored wire；
Step 4, the flux-cored wire finally prepared step 3 with wire drawing machine stretches, and disk packs into disk.
The flux-cored wire prepared with embodiment 5, using gas metal-arc welding (GMAW), welding current 180A, electricity
Press as 20V, protective gas is argon gas, gas flow rate 17L/min.Welding point tensile strength is 806Mpa, and yield limit is
723Mpa, the contraction percentage of area 62%, ballistic work 135J.The use that performance meets martensitic stain less steel 0Cr13Ni5Mo will
Ask.
Claims (4)
1.0Cr13Ni5Mo steel metal flux-cored wires, it is characterised in that be made up of crust and medicine core, medicine core is metal powder
Body, it is composed of the following components by mass percentage：Hafnium metal powfer 55%-60%, manganese powder 2.5%-6%, ferrosilicon 4%-
10%, nickel powder 20%-25%, molybdenum powder 2.5%-5%, remaining is iron, and above constituent mass percentage sum is 100%；Crust
Material is mild steel steel band, wherein impurity element P≤0.009%, S≤0.008%.
2. 0Cr13Ni5Mo steel metal flux-cored wire according to claim 1, it is characterised in that in the flux-cored wire
The filling rate of medicine core is 25%-28%.
3. 0Cr13Ni5Mo steel metal flux-cored wire according to claim 1, it is characterised in that the flux-cored wire
A diameter of 1.2-2.0mm.
The preparation method of 4.0Cr13Ni5Mo steel metal flux-cored wires, it is characterised in that comprise the following steps that：
Step 1, hafnium metal powfer 55%-60%, manganese powder 2.5%-6%, ferrosilicon 4%- are weighed respectively by mass percentage
10%, nickel powder 20%-25%, molybdenum powder 2.5%-5%, remaining is iron, and above constituent mass percentage sum is 100%；
Step 2, material step 1 weighed is well mixed, and is then placed within drying oven and is dried, and the temperature of drying is 200-
300 DEG C, time 2-2.5h, obtain medicine core powder；
Step 3, by mild steel steel band be placed on flux-cored wire forming machine put band machine on, mild steel steel band is rolled by forming machine
U-type groove is made, the medicine core powder that step 2 obtains then is added into U-type groove, the filling rate for controlling medicine core powder is 25%-
28%, then U-type groove is rolled by closure by forming machine, and 1.2mm-2.0mm is drawn to, obtain flux-cored wire；
Step 4, the flux-cored wire finally prepared step 3 with wire drawing machine stretches, and disk packs into disk.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105014261B (en) * | 2015-07-30 | 2017-08-04 | 武汉铁锚焊接材料股份有限公司 | A kind of chrome-molybdenum steel seamless metal powder core type flux-cored wire |
| CN105945446B (en) * | 2016-06-21 | 2019-01-29 | 西安理工大学 | 1Cr12Ni2W1MoV stainless steel metal flux-cored wire and preparation method thereof |
| CN107350658A (en) * | 2017-07-12 | 2017-11-17 | 西安理工大学 | PH13 8Mo stainless steels metal mold welding wire and preparation method thereof |
| CN107649798B (en) * | 2017-10-20 | 2020-08-18 | 西安理工大学 | Metal flux-cored wire for 25Cr2Ni4MoV steel and preparation method thereof |
| CN111185691B (en) * | 2018-11-15 | 2021-09-28 | 天津大学 | High-toughness low-phase-change-point metal powder-cored welding wire |
| CN114346512B (en) * | 2021-12-29 | 2023-07-28 | 西安理工大学 | Welding wire for alloy steel-stainless steel composite material transition layer and preparation method thereof |
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| CN103990918A (en) * | 2014-04-30 | 2014-08-20 | 西安理工大学 | Welding wire for welding FV520B martensitic stainless steel and manufacturing method thereof |
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