CN108672981A - A kind of increasing material manufacturing solid welding wire and its welding method - Google Patents
A kind of increasing material manufacturing solid welding wire and its welding method Download PDFInfo
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- CN108672981A CN108672981A CN201810823735.2A CN201810823735A CN108672981A CN 108672981 A CN108672981 A CN 108672981A CN 201810823735 A CN201810823735 A CN 201810823735A CN 108672981 A CN108672981 A CN 108672981A
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- material manufacturing
- welding wire
- increasing material
- solid welding
- manufacturing solid
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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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Nonmetallic Welding Materials (AREA)
- Arc Welding In General (AREA)
Abstract
The present invention provides a kind of increasing material manufacturing solid welding wires, including following chemical composition by mass percentage：C：0.04~0.09%, Si：0.20~0.50%, Mn：1.10~1.90%, Mo：0.20~0.45%, Cr：0.2~0.5%, Ni：1.85~3.40%, Ti：0.071~0.15%, S≤0.009%, P≤0.010%, Zr：0.010~0.023%, B：0.004~0.008%, surplus is iron and inevitable impurity.The invention carries out weld strength reinforcing by using C, Mn, Si element, strengthen supplement using a small amount of Mo as weld seam, it is poor to improve the welding technological properties caused by C, Mn, Si element with Ti elements, it splashes big disadvantage, the cost of raw material for greatly reducing welding wire improves weld strength, and greatly improves welding technological properties, the tensile strength that its heap melts metal reaches 700MPa, and 50 DEG C of KV2Impact flexibility is excellent.
Description
Technical field
The invention belongs to technical field of welding materials, and in particular to a kind of increasing material manufacturing solid welding wire and its welding side
Method.
Background technology
Increases material manufacturing technology is developed using electric arc as heat source based on welding techniques such as TIG, MIG, MAG, SAW, using by
The molten mode manufacturing equipment component of layer heap, there is full heap melt material to constitute, the forming that chemical composition is uniform, consistency is high, open
Environment to size of formed part without limitation, the features such as shaping rate is high.
For the development of increasing material manufacturing, material, equipment, technique are three big key elements of the technology, in printing device
While gradually ripe with technique, material bottleneck has become the matter of utmost importance of limitation increases material manufacturing technology development, raw material
Limitation is to influence the research and development barrier of increasing material manufacturing development.The development of increasing material manufacturing heap melt material, to the hair of increases material manufacturing technology
Facilitation is played in exhibition and the foundation of industrial chain and the upgrading of industry.Although metal increasing material manufacturing has developed nearly 30 years, but raw
Since cooling velocity is too fast during production, internal stress is big, and grain structure is difficult to control, and easy tos produce internal flaw；Crackle is once
It is formed, high-speed expansion, and the crackle of appearance, residual stress are all had no idea to monitor in time and effectively be avoided.And pass through tradition
Foundry engieering production part can control the quality of parts by casting technique, avoid the generation of defect.To make increasing
The parts and casting performance having the same of material manufacturing technology production, then the raw material that increasing material manufacturing uses, more common
Wlding requires more stringent in terms of the content of control S, P, and chemical composition ranges are more accurate, to avoid in increasing material manufacturing
It is cracked in journey, component segregation etc. is unfavorable for the defect of increasing material manufacturing quality.Existing raw material are in S, P content control and ingredient
Being precisely controlled aspect, there are still technical difficulty, and often the requirement to part performance is very high for naval vessel industry, restricts to a certain extent
The rise and development of metal increases material manufacturing technology.
Invention content
The object of the present invention is to provide a kind of increasing material manufacturing solid welding wire, ensure that the molten metallochemistry ingredient of its heap is accurate,
Increasing material manufacturing welding material requirement can be met.
The technical solution of the present invention is to provide a kind of increasing material manufacturing solid welding wires, including by mass percentage as
Lower chemical composition：C：0.04~0.09%, Si：0.20~0.50%, Mn：1.10~1.90%, Mo：0.20~0.45%, Cr：
0.2~0.5%, Ni：1.85~3.40%, Ti：0.071~0.15%, S≤0.009%, P≤0.010%, Zr：0.010~
0.023%, B：0.004~0.008%, surplus is iron and inevitable impurity.
As one of embodiment, the increasing material manufacturing solid welding wire includes following chemistry by mass percentage
Ingredient：C：0.09%, Si：0.20%, Mn：1.10%, Mo：0.20%, Cr：0.20%, Ni：3.40%, Ti：0.083%, S：
0.0081%, P:0.010%, Zr：0.010%, B：0.004%, surplus is iron and inevitable impurity.
As one of embodiment, the increasing material manufacturing solid welding wire includes following chemistry by mass percentage
Ingredient：C：0.068%, Si：0.33%, Mn：1.45%, Mo：0.23%, Cr：0.35%, Ni：2.65%, Ti：0.071%,
S：0.0083%, P:0.008%, Zr：0.011%, B：0.005%, surplus is iron and inevitable impurity.
As one of embodiment, the increasing material manufacturing solid welding wire includes following chemistry by mass percentage
Ingredient：C：0.040%, Si：0.50%, Mn：1.90%, Mo：0.45%, Cr：0.44%, Ni：2.11%, Ti：0.093%,
S：0.009%, P:0.0078%, Zr：0.013%, B：0.007%, surplus is iron and inevitable impurity.
As one of embodiment, the increasing material manufacturing solid welding wire includes following chemistry by mass percentage
Ingredient：C：0.073%, Si：0.23%, Mn：1.44%, Mo：0.21%, Cr：0.50%, Ni：1.85%, Ti：0.15%, S：
0.0071%, P:0.0081%, Zr：0.023%, B：0.008%, surplus is iron and inevitable impurity.
Further, a diameter of 1.2mm of the increasing material manufacturing solid welding wire.
In addition, the present invention also provides the welding method of above-mentioned increasing material manufacturing solid welding wire, when welding, the increasing material manufacturing
75~85%Ar+CO is used with solid welding wire2Gas shield.
Increasing material manufacturing of the present invention is no copper facing solid welding wire with solid welding wire, by electric furnace smelting, rolling, wire drawing, layer around
Etc. processes be made.
The present invention is matched by rationally designing important alloying element, impurity content of keeping under strict control, using Segregation of Chemical Composition
The means such as control, the control of component metallurgical reaction balance, impurity content control, ingredient stability control, composite micro-alloyed toughening, are protected
It is accurate to demonstrate,prove the molten metallochemistry ingredient of heap, small, the arc stability of splashing is used for material increasing field, heap is made to melt the physicochemical property of metal
Equal all technicals are excellent.
In solid welding wire chemical composition of the present invention, C is the one of the chief elements for ensureing welding wire intensity, and suitable C can be protected
Demonstrate,proving weld metal has certain toughness and good quenching degree, but when its content is more than 0.09%, solderability is poor, splashing
Greatly, welding technological properties is poor；When content is less than 0.04%, mechanical property requirements are not achieved in weld strength.
Si and Mn combined deoxidations, ensure weldquality, when Si contents are more than 0.50%, weld strength is higher；Si contents are low
When 0.20%, deoxidation in the present invention is insufficient, is easy to form stomata.
Mn is also the one of the chief elements for ensureing welding wire intensity, and suitable Mn improving welding property and can increase weld strength
And abrasion resistance properties, while the transition temperature of austenite can be also postponed, contribute to weld seam to generate texture structure, improves low temperature punching
Hit toughness；And suitable Mn and Si plays a part of combined deoxidation, the defects of avoiding generating stomata in weld seam, Mn contents are more than
When 1.90%, Mn segregations are be easy to cause, M-A island structures are also easy to produce in line of segragation, to reduce the toughness of weld metal；Mn contains
When amount is less than 1.10%, in the present invention so that weld strength is inadequate.
Mo plays the booster action for ensureing weld strength in the present invention, and suitable Mo can promote weld strength, refines
Austenite grain, when Mo contents are less than 0.20%, invigoration effect is insufficient；When content is more than 0.45%, toughness is set to decline tight
Weight.
Cr plays the booster action for ensureing weld strength in the present invention, and Cr additions of the present invention are 0.2~0.5%.
Ni plays the booster action for ensureing weld strength in the present invention, and appropriate suitable Ni is added in high intensity weld seam
Ensure low-temperature flexibility, addition is excessively high to dramatically increase welding wire cost, and addition is few, and enhancing carries tough effect unobvious, Ni of the present invention
Addition is 1.85~3.40%.
Suitable Ti mainly plays stabilising arc, and when Ti contents are more than 0.15%, molten iron is relatively viscous, and wire rod presentation quality is poor,
Production process of welding wire has some setbacks；Ti melts Metal Mechanic Property (mainly impact flexibility) to heap influences complex, Ti and nitrogen knot
It closes, reduces the illeffects of solid solution nitrogen, the TiN of generation promotes crystal grain refinement as crystallization nuclei, but when Ti is more on crystal boundary
TiC and TiN is precipitated, weakens crystal boundary；Ti makes phase transition temperature rise, and such as amount containing Ti is more at this time, and amount containing Mn is insufficient or is free of Mo etc.
Element easily forms coarse ferrite or desmachyme, it may also occur that martensitic structure when excessive containing Ti, therefore, the content model of Ti
Enclose is 0.071~0.15%.
Main functions of the Zr in weld metal is to form carbon compound ZrC, ZrC to make Austenite Grain Refinement,
Improve the toughness of weld metal, in the present invention, the content range of Zr is 0.010~0.023%, to welding performance when too high levels
It is unfavorable, Grain refinement unobvious when content is too low.
B combines addition with Ti, it is possible to reduce pro-eutectoid ferrite increases acicular ferrite content, improves toughness.
According to increasing material manufacturing quality requirement, the S contents in welding wire are less than 0.009%, and P content is less than 0.010%.
Beneficial effects of the present invention：By the present invention in that weld strength reinforcing is carried out with C, Mn, Si element, with a small amount of Mo
Strengthen as weld seam and supplement, usually improves that the welding technological properties caused by C, Mn, Si element is poor with Ti members, big lack of splashing
Point greatly reduces the cost of raw material of welding wire, improves weld strength, and greatly improve welding technological properties, should
75%~85%Ar+CO is used when solid welding wire welds2Gas shield, arc stability, fusing is uniform, and heap crucible zone both meets chemistry
Ingredient meets the requirement of mechanical property again, and the tensile strength that heap melts metal reaches 700MPa, and -50 DEG C of KV2Impact flexibility is excellent
It is good.
Specific implementation mode
The following is a clear and complete description of the technical scheme in the embodiments of the invention, it is clear that described embodiment
Only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
All other embodiment that art personnel are obtained without making creative work belongs to the model that the present invention protects
It encloses.
Increasing material manufacturing is shown in Table 1 with solid welding wire chemical composition in embodiment, by electric furnace smelting, rolling, wire drawing, layer around
Equal conventional tubeless process for manufacturing welding wire step, is made the finished solid welding wire of a diameter of 1.2mm.
1 welding wire chemical composition (mass percent %) of table
| Chemical composition | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| C | 0.09 | 0.068 | 0.040 | 0.073 |
| Si | 0.20 | 0.33 | 0.50 | 0.23 |
| Mn | 1.10 | 1.45 | 1.90 | 1.44 |
| S | 0.0081 | 0.0083 | 0.0090 | 0.0071 |
| P | 0.010 | 0.0080 | 0.0078 | 0.0081 |
| Ni | 3.40 | 2.65 | 2.11 | 1.85 |
| Mo | 0.20 | 0.23 | 0.45 | 0.21 |
| Cr | 0.20 | 0.35 | 0.44 | 0.50 |
| Ti | 0.083 | 0.071 | 0.093 | 0.15 |
| Zr | 0.010 | 0.011 | 0.013 | 0.023 |
| B | 0.004 | 0.005 | 0.007 | 0.008 |
| Iron and impurity | Surplus | Surplus | Surplus | Surplus |
Obtained solid welding wire will be matched by Examples 1 to 4 and carries out the molten experiment of heap, using 75%~85%Ar+CO2
Gas shielded welding, heap, which melts chemical composition (mass fraction %) in metal, to be tested, and the results are shown in Table 2.
2 heap of table melts chemical composition (mass percent %) in metal
As seen from Table 2, each chemical component fluctuation range of the molten metal of heap is very small, meets heap crucible zone during increasing material manufacturing
Chemical composition precisely requires.
The heap obtained in above-described embodiment 1~4 is melted into metal and carries out Mechanics Performance Testing, the results are shown in Table 3.
The heap of 3 solid welding wire of table melts Metal Mechanic Property
As can be seen from Table 4, the heap of increasing material manufacturing solid welding wire provided in this embodiment melts Metal Mechanic Property and stablizes,
Its tensile strength reaches 700MPa, and -50 DEG C of KV2Impact flexibility is excellent.
In addition, melting metal to the heap obtained in above-described embodiment example 1~4 carries out radiographic inspection experiment, result is I grade.
The foregoing examples are only illustrative of the present invention, does not constitute the limitation to protection scope of the present invention, all
Be with the present invention it is same or analogous design all belong to the scope of protection of the present invention within.
Claims (7)
1. a kind of increasing material manufacturing solid welding wire, which is characterized in that including following chemical composition by mass percentage：C：
0.04~0.09%, Si：0.20~0.50%, Mn：1.10~1.90%, Mo：0.20~0.45%, Cr：0.2~0.5%,
Ni：1.85~3.40%, Ti：0.071~0.15%, S≤0.009%, P≤0.010%, Zr：0.010~0.023%, B：
0.004~0.008%, surplus is iron and inevitable impurity.
2. increasing material manufacturing solid welding wire as described in claim 1, which is characterized in that as follows including by mass percentage
Chemical composition：C：0.09%, Si：0.20%, Mn：1.10%, Mo：0.20%, Cr：0.20%, Ni：3.40%, Ti：
0.083%, S：0.0081%, P:0.010%, Zr：0.010%, B：0.004%, surplus is iron and inevitable impurity.
3. increasing material manufacturing solid welding wire as described in claim 1, which is characterized in that as follows including by mass percentage
Chemical composition：C：0.068%, Si：0.33%, Mn：1.45%, Mo：0.23%, Cr：0.35%, Ni：2.65%, Ti：
0.071%, S：0.0083%, P:0.008%, Zr：0.011%, B：0.005%, surplus is iron and inevitable impurity.
4. increasing material manufacturing solid welding wire as described in claim 1, which is characterized in that as follows including by mass percentage
Chemical composition：C：0.040%, Si：0.50%, Mn：1.90%, Mo：0.45%, Cr：0.44%, Ni：2.11%, Ti：
0.093%, S：0.009%, P:0.0078%, Zr：0.013%, B：0.007%, surplus is iron and inevitable impurity.
5. increasing material manufacturing solid welding wire as described in claim 1, which is characterized in that as follows including by mass percentage
Chemical composition：C：0.073%, Si：0.23%, Mn：1.44%, Mo：0.21%, Cr：0.50%, Ni：1.85%, Ti：
0.15%, S：0.0071%, P:0.0081%, Zr：0.023%, B：0.008%, surplus is iron and inevitable impurity.
6. increasing material manufacturing solid welding wire as described in claim 1, which is characterized in that the increasing material manufacturing solid welding wire
A diameter of 1.2mm.
7. such as the welding method of claim 1~6 any one of them increasing material manufacturing solid welding wire, it is characterised in that：Welding
When, the increasing material manufacturing uses 75~85%Ar+CO with solid welding wire2Gas shield.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810823735.2A CN108672981A (en) | 2018-07-25 | 2018-07-25 | A kind of increasing material manufacturing solid welding wire and its welding method |
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| CN201810823735.2A CN108672981A (en) | 2018-07-25 | 2018-07-25 | A kind of increasing material manufacturing solid welding wire and its welding method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111571060A (en) * | 2020-04-23 | 2020-08-25 | 武汉铁锚焊接材料股份有限公司 | Special 70 kg-level high-strength high-toughness gas-shielded solid welding wire for coal machine industry |
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| CN107414341A (en) * | 2017-07-29 | 2017-12-01 | 安徽华众焊业有限公司 | A kind of small solid welding wire that splashes |
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2018
- 2018-07-25 CN CN201810823735.2A patent/CN108672981A/en active Pending
Patent Citations (5)
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| CN1358607A (en) * | 2001-11-08 | 2002-07-17 | 武汉钢铁(集团)公司 | High-toughness gas protective welding wire for low alloy high-strength steel |
| CN101462207A (en) * | 2007-12-21 | 2009-06-24 | 首钢总公司 | High-ductility submerged arc welding wire for pipeline steel |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111571060A (en) * | 2020-04-23 | 2020-08-25 | 武汉铁锚焊接材料股份有限公司 | Special 70 kg-level high-strength high-toughness gas-shielded solid welding wire for coal machine industry |
| CN111571060B (en) * | 2020-04-23 | 2022-04-22 | 武汉铁锚焊接材料股份有限公司 | Special 70 kg-level high-strength high-toughness gas-shielded solid welding wire for coal machine industry |
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Application publication date: 20181019 |
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