CN105479035A - High-nitrogen steel welding wire and manufacturing process thereof - Google Patents
High-nitrogen steel welding wire and manufacturing process thereof Download PDFInfo
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- CN105479035A CN105479035A CN201510993265.0A CN201510993265A CN105479035A CN 105479035 A CN105479035 A CN 105479035A CN 201510993265 A CN201510993265 A CN 201510993265A CN 105479035 A CN105479035 A CN 105479035A
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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
-
- 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
- B23K35/308—Fe as the principal constituent with Cr as next major constituent
- B23K35/3086—Fe as the principal constituent with Cr as next major constituent containing Ni or Mn
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
Abstract
The invention discloses a high-nitrogen steel welding wire and a manufacturing process thereof. The high-nitrogen steel welding wire comprises, by weight percent, 16%-19% of Mn, 20%-30% of Cr, 0.7%-0.9% of N, 0.5%-1.5% of Mo, not larger than 0.2% of Ni, not larger than 0.03% of S, not larger than 0.03% of P, not larger than 0.03% of C, not larger than 0.4% of Si and the balance iron and inevitable impurities. The manufactured high-nitrogen steel welding wire is manufactured through the processes of electroslag remelting, forging, gas shield wire drawing, shaping polishing and the like, the welding wire is high in tensile strength, meanwhile, the good toughness is achieved, and the requirement for the performance of the welding wire during high-strength steel welding can be met.
Description
Technical field
The invention belongs to welding material and processing technology field, particularly one high nitrogen steel welding wire and manufacturing process thereof.
Background technology
Along with the development of national economy, various resource is also in a large amount of consumption, especially the consumption of the resource such as iron and steel is particularly remarkable, high performance material is adopted to be one of effective way solving this consumption, and high-strength steel has been widely used as a kind of high performance material, the effect particularly in communications and transportation, ocean engineering etc. has become particularly remarkable.The use of high-strength steel be unable to do without solder technology, and welding point often can become the vulnerable area of total because of a variety of causes, and this also significantly limit the application of high-strength steel.Cause joint performance poor, do not mate not only relevant with welding procedure with integrated member performance, welding material also has a significant impact it.
Current high-strength steel welding can adopt low-alloy wlding, and this type of wlding cost is lower, but welding procedure is complicated, and the overhead in welding process is large, and due to reasons such as operations, makes welding quality sometimes be difficult to ensure.And adopt high alloy wlding, as ER309, ER307 etc. can the welding points of excellent, but containing a large amount of precious metal element in this type of wlding, make welding cost relatively high, be generally applied to high-strength steel Welding Structure performance being had to strict demand.
In addition some are also had for the wlding of high-strength steel welding, the Chinese patent of the full austenite stainless steel welding stick of a kind of superhigh intensity by name is disclosed as publication number CN104227265A, this welding wire with the addition of the metallic elements such as Ni, Ti, V, and the content of Ni reaches 3.0-7.0%.Publication number CN101722386A discloses the Chinese patent of a kind of gas shield welding wire with high strength and tenacity by name, and in this welding wire, the content of Ni reaches 2.0-3.2%, and with the addition of the yttriums such as Re, Nb.Publication number CN101905390A discloses the Chinese patent of a kind of gas-protection welding wire with low alloy and high strength by name, and this welding wire China with the addition of precious metal element W and yttrium Re.Although can find by above patent the intensity that this type of welding wire can reach very high, owing to adding precious metal element or yttrium in welding wire, the manufacturing cost of welding wire is increased.
Summary of the invention
The object of this invention is to provide a kind of high nitrogen steel welding wire and manufacturing process thereof.
The technical scheme of a kind of high nitrogen steel welding wire of the present invention and manufacturing process thereof is:
A kind of high nitrogen steel welding wire, described high nitrogen steel welding wire by weight percentage, containing following element: Mn:16-19%; Cr:20-30%; N:0.7-0.9%; Mo:0.5-1.5%; Ni :≤0.2%; S :≤0.03%; P :≤0.03%; C :≤0.03%; Si :≤0.4%, surplus is iron and inevitable impurity.
Preferably, described high nitrogen steel welding wire by weight percentage optimization of C/C composites be made up of following elements: Mn:16.5-18.5%; Cr:22-28%; N:0.7-0.8%; Mo:0.7-1.3%; Ni :≤0.2%; S :≤0.03%; P :≤0.03%; C :≤0.03%; Si :≤0.4%, surplus is iron and inevitable impurity.
The manufacturing process of described a kind of high nitrogen steel welding wire comprises following steps:
(1) electroslag remelting: re melting process is carried out to the thick embryo of high nitrogen steel, obtained high nitrogen steel ingot;
(2) heats forged: to the preheating of high nitrogen steel ingot between 600-700 DEG C, the time is 1-1.5 hour; After being heated to 900-1100 DEG C again, steel ingot is forged, make high nitrogen Steel Bar;
(3) wire rod: to the preheating of high nitrogen Steel Bar, preheat temperature 550-650 DEG C, time 0.5-1 hour; Again high nitrogen Steel Bar is heated to be rolled between 750-800 DEG C, makes wire rod; Carry out blasting treatment to wire rod after rolling, sandblasting speed is 3m/min; Finally pickling, polishing are carried out to wire rod;
(4) drawing: carry out rough to high nitrogen steel wire rod under nitrogen atmosphere protection condition, be drawn into the welding wire of 3mm, drawing temperature is 100-150 DEG C; Carefully draw 3mm welding wire, be drawn into the welding wire of 0.6mm, 0.8mm, 1.0mm, 1.2mm, 1.6mm, drawing temperature is 70-100 DEG C, and carries out shaping, polishing to welding wire surface.
Further, the heating rate of described forging preheating is 18 ± 5 DEG C/min, and the heating rate again heated is 25 DEG C ± 5/min.
Further, the heating rate of wire rod preheating is 18 ± 5 DEG C/min, and the heating rate again heated is 30 ± 5 DEG C/min.
Further, drawing process all carries out under nitrogen atmosphere protective condition, and described nitrogen gas pushing quantity is 25-30L/min.
Adopt the method for electroslag remelting to carry out re melting process to the thick embryo of high nitrogen steel in manufacture process, eliminate the problems such as the local part segregation that may exist in the thick embryo casting cycle of high nitrogen steel with this.In drawing process, adopt the method for nitrogen atmosphere protection to reduce nitrogen element loss in drawing process.
It is as follows that the present invention compared with prior art has remarkable advantage:
1, the high nitrogen steel welding wire intensity in the present invention is high: main using nitrogen as intensified element in welding wire, adds the element such as chromium, manganese simultaneously, weld metal intensity is greatly improved, can reaches more than 750MPa, can meet the requirement of high-strength steel structure butt welded seam intensity.
2, high nitrogen steel welding wire good toughness of the present invention: using nitrogen as intensified element in welding wire, and nitrogen element also improves the toughness of metal while improving metal strength, makes this high nitrogen steel welding wire for other like products, has better impact flexibility.
3, this high nitrogen steel welding wire surface is without the need to preservative treatment: making it have splendid corrosion resistance containing the composition such as nitrogen, chromium in welding wire, therefore without the need to showing anti-corrosion treatment, also can ensure its later serviceability.
4, this high nitrogen steel welding wire production cost is low: main using nitrogen as intensified element in welding wire, avoid the use of other noble metal intensified elements, this greatly reduces the cost of welding wire raw material, and after welding wire machines, surface is without the need to anti-corrosion treatment, decrease manufacturing procedure, reduce its manufacturing cost, there is extraordinary application prospect.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described
The concrete manufacturing process of high nitrogen steel welding wire in the present embodiment, comprises following steps:
Step one, electroslag remelting: re melting process is carried out to the thick embryo of high nitrogen steel, obtained high nitrogen steel ingot;
Step 2, heats forged: high nitrogen steel ingot is heated to 650 DEG C with the speed of 18 DEG C/min, preheating 1.5 hours; After being heated to 950 DEG C with the speed of 25 DEG C/min again, steel ingot is forged, make high nitrogen Steel Bar;
Step 3, wire rod: to the preheating of high nitrogen Steel Bar, be heated to 600 DEG C with the speed of 18 DEG C/min, is incubated 0.5 hour; Again by high nitrogen Steel Bar to be heated to be rolled between 750 DEG C with the speed of 30 DEG C/min again, make wire rod; Carry out blasting treatment to wire rod after rolling, sandblasting speed is 3m/min; Finally pickling, polishing are carried out to wire rod;
Step 4, drawing: carry out rough to high nitrogen steel wire rod under nitrogen atmosphere protection condition, be drawn into the welding wire of 3mm, drawing temperature is 120 DEG C; Carefully draw 3mm welding wire, be drawn into the welding wire of 1.2mm, drawing temperature is 80 DEG C, and carries out shaping, polishing to welding wire surface.
Choose the high nitrogen steel welding wire of heterogeneity to embodiment 1-4 and comparative example does welding test, the chemical composition of welding wire refers to table 1, and welding parameter is in table 2, and welding wire specification is φ 1.2mm.
Adopt the 13Mn steel of 20mm as test piece for welding, open one side double V-groove, bevel angle is 45 °, adopts welding wire in embodiment 1-4 to weld, adopts 85%Ar+15%CO
2protection gas, adopt weldingvoltage 26V, welding current 230A, mother metal carries out multi-pass welding, guarantees test plate (panel) complete penetration.Carry out performance test to test piece for welding, test result is as shown in table 3.
Table 1 embodiment of the present invention welding wire is compared with the prior art the chemical composition (wt%) of welding wire
Table 2 welding condition
Table 3 deposited metal mechanical property
High nitrogen steel welding wire in embodiment obviously can be found compared with existing welding wire from being all be greatly improved intensity or toughness by contrast test.And adopt nitrogen as intensified element in this welding wire, effectively reduce material cost, there is higher cost performance.
Claims (8)
1. a high nitrogen steel welding wire, is characterized in that, described high nitrogen steel welding wire by weight percentage, containing following element: Mn:16-19%; Cr:20-30%; N:0.7-0.9%; Mo:0.5-1.5%; Ni :≤0.2%; S :≤0.03%; P :≤0.03%; C :≤0.03%; Si :≤0.4%, surplus is iron and inevitable impurity.
2. one according to claim 1 high nitrogen steel welding wire, is characterized in that, described high nitrogen steel welding wire by weight percentage optimization of C/C composites is made up of following elements: Mn:16.5-18.5%; Cr:22-28%; N:0.7-0.8%; Mo:0.7-1.3%; Ni :≤0.2%; S :≤0.03%; P :≤0.03%; C :≤0.03%; Si :≤0.4%, surplus is iron and inevitable impurity.
3. the manufacturing process of a kind of high nitrogen steel welding wire according to claim 1-2, is characterized in that, comprise following concrete steps:
Step one, electroslag remelting: re melting process is carried out to the thick embryo of high nitrogen steel, obtained high nitrogen steel ingot;
Step 2, heats forged: high nitrogen steel ingot is preheating to 600-700 DEG C, preheating time 1-1.5 hour; After being heated to 900-1100 DEG C again, steel ingot is forged, make high nitrogen Steel Bar;
Step 3, wire rod: to the preheating of high nitrogen Steel Bar, be heated to 550-650 DEG C, insulation 0.5-1 hour; Again by high nitrogen Steel Bar to be heated to again be rolled between 750-800 DEG C, make wire rod; Blasting treatment is carried out to wire rod after rolling; Finally pickling, polishing are carried out to wire rod;
Step 4, drawing: carry out rough to high nitrogen steel wire rod under nitrogen atmosphere protection condition, be drawn into the welding wire of 3mm, drawing temperature is 100-150 DEG C; Carefully draw 3mm welding wire, be drawn into the welding wire of 0.6mm, 0.8mm, 1.0mm, 1.2mm or 1.6mm, drawing temperature is 70-100 DEG C, and carries out shaping, polishing to welding wire surface.
4. according to claim 3 a kind of manufacturing process of high nitrogen steel welding wire, it is characterized in that, in step 3, wire rod acid washing conditions is, by 240-280A electric current, temperature is 75 DEG C-90 DEG C.
5. according to claim 3 a kind of manufacturing process of high nitrogen steel welding wire, it is characterized in that, drawing process all carries out under nitrogen atmosphere protective condition, and described nitrogen gas pushing quantity is 25-30L/min.
6. according to claim 3 a kind of manufacturing process of high nitrogen steel welding wire, it is characterized in that, in step 2, the heating rate of described forging preheating is 18 ± 5 DEG C/min, and the heating rate again heated is 25 DEG C ± 5/min.
7. according to claim 3 a kind of manufacturing process of high nitrogen steel welding wire, it is characterized in that, in step 3, the heating rate of described wire rod preheating is 18 ± 5 DEG C/min, and the heating rate again heated is 30 ± 5 DEG C/min.
8. according to claim 3 a kind of manufacturing process of high nitrogen steel welding wire, it is characterized in that, in step 3, described sandblasting speed is 3m/min.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108526750A (en) * | 2018-04-08 | 2018-09-14 | 中国兵器科学研究院宁波分院 | A kind of high-strength and high ductility high-nitrogen austenitic stainless steel welding wire and preparation method thereof |
| CN109108522A (en) * | 2018-09-27 | 2019-01-01 | 华北水利水电大学 | A kind of composite soldering and preparation method thereof for being brazed high nitrogen steel |
| CN109454358A (en) * | 2018-11-29 | 2019-03-12 | 北京北方车辆集团有限公司 | A kind of special vehicle high nitrogen steel car body welding manufacture special welding wire |
| CN109865959A (en) * | 2019-02-20 | 2019-06-11 | 江苏金桥焊材科技股份有限公司 | A kind of stainless steel welding stick and preparation method thereof suitable for chemical industry |
| CN109865958A (en) * | 2019-02-20 | 2019-06-11 | 江苏金桥焊材科技股份有限公司 | A kind of stainless steel steel welding wire and preparation method thereof suitable for ocean engineering |
| CN109865957A (en) * | 2019-02-20 | 2019-06-11 | 江苏金桥焊材科技股份有限公司 | A kind of stainless steel welding stick and preparation method thereof suitable for nuclear power |
| CN109877486A (en) * | 2019-02-20 | 2019-06-14 | 江苏金桥焊材科技股份有限公司 | A kind of stainless steel welding stick and preparation method thereof suitable for furnace body |
| CN112442633A (en) * | 2020-10-28 | 2021-03-05 | 河钢股份有限公司 | High-nitrogen 316LN stainless steel welding wire and production method thereof |
| CN113894176A (en) * | 2021-09-30 | 2022-01-07 | 江苏烁石焊接科技有限公司 | Preparation method of heterogeneous high-nitrogen steel wire |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3660080A (en) * | 1969-01-31 | 1972-05-02 | Armco Steel Corp | Austenitic alloy and weld |
| JPH09122977A (en) * | 1995-10-25 | 1997-05-13 | Kobe Steel Ltd | High-nitrogen flux cored wire for welding cr-ni stainless steel |
| CN101722386A (en) * | 2009-12-30 | 2010-06-09 | 首钢总公司 | Gas shield welding wire with high strength and tenacity |
| CN101905390A (en) * | 2010-08-23 | 2010-12-08 | 武汉钢铁(集团)公司 | Gas-protection welding wire with low alloy and high strength |
| CN102363251A (en) * | 2011-10-13 | 2012-02-29 | 中国船舶重工集团公司第七二五研究所 | High-toughness all-austenitic stainless steel welding wire |
| CN104227265A (en) * | 2014-07-25 | 2014-12-24 | 洛阳双瑞特种合金材料有限公司 | Ultrahigh-intensity all-austenite stainless steel welding wire |
-
2015
- 2015-12-25 CN CN201510993265.0A patent/CN105479035A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3660080A (en) * | 1969-01-31 | 1972-05-02 | Armco Steel Corp | Austenitic alloy and weld |
| JPH09122977A (en) * | 1995-10-25 | 1997-05-13 | Kobe Steel Ltd | High-nitrogen flux cored wire for welding cr-ni stainless steel |
| CN101722386A (en) * | 2009-12-30 | 2010-06-09 | 首钢总公司 | Gas shield welding wire with high strength and tenacity |
| CN101905390A (en) * | 2010-08-23 | 2010-12-08 | 武汉钢铁(集团)公司 | Gas-protection welding wire with low alloy and high strength |
| CN102363251A (en) * | 2011-10-13 | 2012-02-29 | 中国船舶重工集团公司第七二五研究所 | High-toughness all-austenitic stainless steel welding wire |
| CN104227265A (en) * | 2014-07-25 | 2014-12-24 | 洛阳双瑞特种合金材料有限公司 | Ultrahigh-intensity all-austenite stainless steel welding wire |
Non-Patent Citations (1)
| Title |
|---|
| 杨得超: "高氮无镍奥氏体不锈钢焊接工艺与接头组织性能研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108526750A (en) * | 2018-04-08 | 2018-09-14 | 中国兵器科学研究院宁波分院 | A kind of high-strength and high ductility high-nitrogen austenitic stainless steel welding wire and preparation method thereof |
| CN109108522A (en) * | 2018-09-27 | 2019-01-01 | 华北水利水电大学 | A kind of composite soldering and preparation method thereof for being brazed high nitrogen steel |
| CN109454358A (en) * | 2018-11-29 | 2019-03-12 | 北京北方车辆集团有限公司 | A kind of special vehicle high nitrogen steel car body welding manufacture special welding wire |
| CN109865959A (en) * | 2019-02-20 | 2019-06-11 | 江苏金桥焊材科技股份有限公司 | A kind of stainless steel welding stick and preparation method thereof suitable for chemical industry |
| CN109865958A (en) * | 2019-02-20 | 2019-06-11 | 江苏金桥焊材科技股份有限公司 | A kind of stainless steel steel welding wire and preparation method thereof suitable for ocean engineering |
| CN109865957A (en) * | 2019-02-20 | 2019-06-11 | 江苏金桥焊材科技股份有限公司 | A kind of stainless steel welding stick and preparation method thereof suitable for nuclear power |
| CN109877486A (en) * | 2019-02-20 | 2019-06-14 | 江苏金桥焊材科技股份有限公司 | A kind of stainless steel welding stick and preparation method thereof suitable for furnace body |
| CN112442633A (en) * | 2020-10-28 | 2021-03-05 | 河钢股份有限公司 | High-nitrogen 316LN stainless steel welding wire and production method thereof |
| CN113894176A (en) * | 2021-09-30 | 2022-01-07 | 江苏烁石焊接科技有限公司 | Preparation method of heterogeneous high-nitrogen steel wire |
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Application publication date: 20160413 |