CN103567664A - Ti-Ni welding wire for welding Ti-pipeline steel composite board and preparation method of Ti-Ni welding wire - Google Patents
Ti-Ni welding wire for welding Ti-pipeline steel composite board and preparation method of Ti-Ni welding wire Download PDFInfo
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- CN103567664A CN103567664A CN201310525904.1A CN201310525904A CN103567664A CN 103567664 A CN103567664 A CN 103567664A CN 201310525904 A CN201310525904 A CN 201310525904A CN 103567664 A CN103567664 A CN 103567664A
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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
- B23K35/3033—Ni as the principal constituent
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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
- B23K35/40—Making wire or rods for soldering or welding
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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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/18—Sheet panels
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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
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/18—Dissimilar materials
- B23K2103/24—Ferrous alloys and titanium or alloys thereof
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Abstract
The invention provides a Ti-Ni welding wire for welding a Ti-pipeline steel composite board and a preparation method of the Ti-Ni welding wire. The Ti-Ni welding wire comprises the components in percentage by weight as follows: 52%-58% of Ni, smaller than or equal to 0.04% of C, smaller than or equal to 0.007% of N, smaller than or equal to 0.035% of O, smaller than or equal to 0.001% of H and the balance of Ti, wherein the sum of the weight percentages of the components is 100%. The Ti-Ni welding wire for welding the Ti-pipeline steel composite board can effectively connect weld microstructures of a Ti layer and a pipeline steel layer of the composite board, so that butt fusion welding of the Ti-pipeline steel composite board is realized, and a welded joint has excellent strength and toughness; the diameter of the Ti-Ni welding wire is small, and both manual TIG (tungsten inert gas) welding and MIG (metal inert gas) welding can be adopted; and the variety of welding material alloys is small, the preparation technology is simple, and the Ti-Ni welding wire is suitable for mass production.
Description
Technical field
The invention belongs to Metal Material Welding technical field, relate to a kind of titanium-pipe line steel composite plate welding and use Ti-Ni welding wire, the invention still further relates to the preparation method of Ti-Ni welding wire for this titanium-pipe line steel composite plate welding.
Background technology
Titanium-pipe line steel composite plate is a kind of new use for explosive ply-metal, integrates titanium, pipe line steel advantage, has both had the strong corrosion resistant of titanium, has again the high-strength tenacity of pipe line steel.This composite plate is applied on oil gas transport pipeline, had both solved the difficult point that single pipe line steel pipeline is easily corroded, solved again with single resistant material and manufactured the too high problem of oil gas transportation piping cost.Yet, because Ti, Fe physics, chemical characteristic differ greatly, very easily generate compound between high brittle metal, make titanium-pipe line steel composite plate be difficult to melting welding and connect, seriously hindered its application on oil and gas pipes.At present, about the docking problem of titanium-pipe line steel composite plate, only there is the report of a small amount of welding procedure aspect, there is not yet the report about its melting welding connecting welding material.
Summary of the invention
The object of this invention is to provide the welding of a kind of titanium-pipe line steel composite plate and use Ti-Ni welding wire, solved the problem that existing titanium-pipe line steel composite plate cannot melting welding be docked.
Another object of the present invention is to provide the preparation method of Ti-Ni welding wire for above-mentioned titanium-pipe line steel composite plate welding.
The technical solution adopted in the present invention is that Ti-Ni welding wire is used in the welding of titanium-pipe line steel composite plate, composed of the following components according to percentage by weight: Ni52-58%, C≤0.04%, N≤0.007%, O≤0.035%, H≤0.001%, surplus is Ti, the percentage by weight sum of above component is 100%.
Another technical scheme of the present invention is, the preparation method of Ti-Ni welding wire for the welding of titanium-pipe line steel composite plate, and concrete steps are as follows:
Step 1, melting
According to percentage by weight, take respectively pure nickel powder 52-58%, titanium sponge 42-48%; The MgO crucible of the titanium sponge taking being put into vacuum induction melting furnace melts; After titanium sponge is fused into molten steel completely, carry out refining, be filled with argon gas after then molten steel temperature being down to 1550 ℃ to make pressure in stove reach 300-380mmHg; Again the pure nickel powder taking is added after stirring 2min in molten steel and tap, be poured in ingot mould, after being poured, ingot mould is preserved to 30min at vacuum chamber, then take out ingot casting and be cooled to room temperature; In fusion process, each weight percentages of components is controlled and is: C≤0.04%, and N≤0.007%, O≤0.035%, H≤0.001%, Ni52-58%, surplus is Ti, each weight percentages of components sum is 100%;
Step 2, wire drawing
The ingot casting that adopts pneumatic hammer at 1100-1200 ℃, step 1 to be obtained is forged into the square billet of 50mm * 50mm, then at 1100-1200 ℃, adopts five line three-high mills of 200 type to be rolled into Φ 6.5mm wire rod; Finally, by wire rod drawing step by step after mechanical descaling, pickling, oven dry, heat treatment, form titanium-pipe line steel composite plate welding Ti-Ni welding wire of Φ 1.2-1.6mm.
Feature of the present invention is also,
In step 1, the temperature of refining is 1680 ℃, and the time is 20min.
In step 1, the tapping temperature of molten steel is 1480 ℃, will make molten steel temperature remain on 1480 ℃ in casting process, notices that molten steel surface is tranquil simultaneously, and cast evenly.
The Acidwash solution using during pickling in step 2 for volume fraction be the aqueous solution that 20% sulfuric acid, 10% nitric acid and 5% hydrochloric acid are mixed with; Bake out temperature is 200 ℃, and the time is 0.5h; Heat treatment temperature is 880-980 ℃, and the time is 1h.
The invention has the beneficial effects as follows,
1. Ti-Ni welding wire is used in titanium-pipe line steel composite plate welding of the present invention, composite plate titanium layer and pipe line steel layer seam organization effectively can be engaged togather, and realize the melting welding docking of titanium-pipe line steel composite plate, and welding point has good obdurability.
2. titanium-pipe line steel composite plate welding of the present invention is little with Ti-Ni gage of wire, both can adopt GTAW welding, can adopt again metal argon arc welding welding; And soldering wire alloy kind is few, and preparation technology is simple, be convenient to carry out large-scale production.
Accompanying drawing explanation
Fig. 1 is the deposited metal metallograph of the embodiment of the present invention 1;
Fig. 2 is the deposited metal metallograph of the embodiment of the present invention 4.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Ti-Ni welding wire is used in titanium-pipe line steel composite plate welding of the present invention, composed of the following components according to percentage by weight: Ni52-58%, and C≤0.04%, N≤0.007%, O≤0.035%, H≤0.001%, surplus is Ti, the percentage by weight sum of above component is 100%.
The preparation method of Ti-Ni welding wire for above-mentioned titanium-pipe line steel composite plate welding, concrete steps are as follows:
Step 1, melting
According to percentage by weight, take respectively pure nickel powder 52-58%, titanium sponge 42-48%; The MgO crucible of the titanium sponge taking being put into vacuum induction melting furnace melts; After titanium sponge is fused into molten steel completely, carry out refining, the temperature of refining is 1680 ℃, and the time is 20min, is filled with argon gas after then molten steel temperature being down to 1550 ℃ to make pressure in stove reach 300-380mmHg; Again the pure nickel powder taking is added after stirring 2min in molten steel and tap, tapping temperature is 1480 ℃, be poured in ingot mould, in casting process, to make molten steel temperature remain on 1480 ℃, notice that molten steel surface is tranquil simultaneously, cast evenly, is preserved 30min by ingot mould at vacuum chamber after being poured, and then takes out ingot casting and is cooled to room temperature; In fusion process, each weight percentages of components is controlled and is: C≤0.04%, and N≤0.007%, O≤0.035%, H≤0.001%, Ni52-58%, surplus is Ti, each weight percentages of components sum is 100%;
Step 2, wire drawing
The ingot casting that adopts pneumatic hammer at 1100-1200 ℃, step 1 to be obtained is forged into the square billet of 50mm * 50mm, then at 1100-1200 ℃, adopts five line three-high mills of 200 type to be rolled into Φ 6.5mm wire rod; Finally by wire rod through mechanical descaling, pickling, 200 ℃ of dry 0.5h, heat treatment (temperature 880-980 ℃, time 1h) after drawing step by step, form titanium-pipe line steel composite plate welding Ti-Ni welding wire of Φ 1.2-1.6mm.
Ti-Ni welding wire is used in titanium-pipe line steel composite plate welding of the present invention, composite plate titanium layer and pipe line steel layer seam organization effectively can be engaged togather, and realize the melting welding docking of titanium-pipe line steel composite plate, and welding point has good obdurability.
Titanium-pipe line steel composite plate welding of the present invention is little with Ti-Ni gage of wire, both can adopt GTAW welding, can adopt again metal argon arc welding welding; And soldering wire alloy kind is few, and preparation technology is simple, be convenient to carry out large-scale production.
Embodiment 1
Step 1, melting
According to percentage by weight, take respectively pure nickel powder 52%, titanium sponge 48%; The MgO crucible of the titanium sponge taking being put into vacuum induction melting furnace melts; After titanium sponge is fused into molten steel completely, carry out refining, the temperature of refining is 1680 ℃, and the time is 20min, is filled with argon gas after then molten steel temperature being down to 1550 ℃ to make pressure in stove reach 350mmHg; Again the pure nickel powder taking is added after stirring 2min in molten steel and tap, tapping temperature is 1480 ℃, be poured in ingot mould, in casting process, to make molten steel temperature remain on 1480 ℃, notice that molten steel surface is tranquil simultaneously, cast evenly, is preserved 30min by ingot mould at vacuum chamber after being poured, and then takes out ingot casting and is cooled to room temperature; In fusion process, each weight percentages of components is controlled and is: C≤0.04%, and N≤0.007%, O≤0.035%, H≤0.001%, Ni52%, surplus is Ti, each weight percentages of components sum is 100%;
Step 2, wire drawing
The ingot casting that adopts pneumatic hammer at 1100 ℃, step 1 to be obtained is forged into the square billet of 50mm * 50mm, then at 1100 ℃, adopts five line three-high mills of 200 type to be rolled into Φ 6.5mm wire rod; Finally by wire rod through mechanical descaling, pickling, 200 ℃ of dry 0.5h, heat treatment (920 ℃ of temperature, time 1h) after drawing step by step, form titanium-pipe line steel composite plate welding Ti-Ni welding wire of Φ 1.6mm.
Adopt the Ti-Ni welding wire of embodiment 1 preparation, coordinate titanium layer welding wire (pure titanium silk) and pipe line steel welding wire (YCGX80) welding titanium-pipe line steel (TA1-X80) composite plate, welding procedure is: composite plate is opened single V-butt (steel layer upper, titanium layer under), bevel angle is 60 °, first weld titanium layer, rear welding steel layer; Titanium layer and transition zone all adopt GTAW, and welding current is respectively: 80-100A, 100-130A, and the high-purity argon gas that protective gas is 99.99%, steel layer adopts CO
2gas shielded arc welding, welding current is 160-180A.
Welding joint mechanical property is after tested: tensile strength 501MPa, yield strength 393MPa, elongation after fracture 9.5%, the contraction percentage of area 32%, room temperature ballistic work 32J.
As shown in Figure 1, as shown in Figure 1, TA1 weld seam and Ti-Ni transition zone weld seam interpenetrate with irregular bulk or lamellar structure weld metal zone deposited metal metallograph, intert and are connected, and its interface is the intermediate zone of wide approximately 100 μ m; Ti-Ni weld seam and X80 steel weld seam interconnect with massive texture, its interface is wire, without obvious intermediate zone, but Ti-Ni weld seam is having strip or the acicular constituent district of a 50-100 μ m near X80 steel side, and the acicular ferrite structure of this tissue and X80 steel has good connecting.
Embodiment 2
Step 1, melting
According to percentage by weight, take respectively pure nickel powder 54%, titanium sponge 46%; The MgO crucible of the titanium sponge taking being put into vacuum induction melting furnace melts; After titanium sponge is fused into molten steel completely, carry out refining, the temperature of refining is 1680 ℃, and the time is 20min, is filled with argon gas after then molten steel temperature being down to 1550 ℃ to make pressure in stove reach 360mmHg; Again the pure nickel powder taking is added after stirring 2min in molten steel and tap, tapping temperature is 1480 ℃, be poured in ingot mould, in casting process, to make molten steel temperature remain on 1480 ℃, notice that molten steel surface is tranquil simultaneously, cast evenly, is preserved 30min by ingot mould at vacuum chamber after being poured, and then takes out ingot casting and is cooled to room temperature; In fusion process, each weight percentages of components is controlled and is: C≤0.04%, and N≤0.007%, O≤0.035%, H≤0.001%, Ni54%, surplus is Ti, each weight percentages of components sum is 100%;
Step 2, wire drawing
The ingot casting that adopts pneumatic hammer at 1150 ℃, step 1 to be obtained is forged into the square billet of 50mm * 50mm, then at 1150 ℃, adopts five line three-high mills of 200 type to be rolled into Φ 6.5mm wire rod; Finally by wire rod through mechanical descaling, pickling, 200 ℃ of dry 0.5h, heat treatment (980 ℃ of temperature, time 1h) after drawing step by step, form titanium-pipe line steel composite plate welding Ti-Ni welding wire of Φ 1.4mm.
The Ti-Ni welding wire that adopts embodiment 2 to make, coordinate titanium layer welding wire (pure titanium silk) and pipe line steel welding wire (YCGX80) welding titanium-pipe line steel (TA1-X80) composite plate, welding procedure is: composite plate is opened single V-butt (steel layer upper, titanium layer under), bevel angle is 60 °, first weld titanium layer, rear welding steel layer; Titanium layer and transition zone all adopt GTAW, and welding current is respectively: 80-100A, 105-135A, and the high-purity argon gas that protective gas is 99.99%, steel layer adopts CO
2gas shielded arc welding, welding current is 160-180A.
Welding joint mechanical property is: tensile strength 495MPa, yield strength 398MPa, elongation after fracture 10.5%, the contraction percentage of area 33%, room temperature ballistic work 33J.
Embodiment 3
Step 1, melting
According to percentage by weight, take respectively pure nickel powder 56%, titanium sponge 44%; The MgO crucible of the titanium sponge taking being put into vacuum induction melting furnace melts; After titanium sponge is fused into molten steel completely, carry out refining, the temperature of refining is 1680 ℃, and the time is 20min, is filled with argon gas after then molten steel temperature being down to 1550 ℃ to make pressure in stove reach 300mmHg; Again the pure nickel powder taking is added after stirring 2min in molten steel and tap, tapping temperature is 1480 ℃, be poured in ingot mould, in casting process, to make molten steel temperature remain on 1480 ℃, notice that molten steel surface is tranquil simultaneously, cast evenly, is preserved 30min by ingot mould at vacuum chamber after being poured, and then takes out ingot casting and is cooled to room temperature; In fusion process, each weight percentages of components is controlled and is: C≤0.04%, and N≤0.007%, O≤0.035%, H≤0.001%, Ni56%, surplus is Ti, each weight percentages of components sum is 100%;
Step 2, wire drawing
The ingot casting that adopts pneumatic hammer at 1180 ℃, step 1 to be obtained is forged into the square billet of 50mm * 50mm, then at 1180 ℃, adopts five line three-high mills of 200 type to be rolled into Φ 6.5mm wire rod; Finally by wire rod through mechanical descaling, pickling, 200 ℃ of dry 0.5h, heat treatment (880 ℃ of temperature, time 1h) after drawing step by step, form titanium-pipe line steel composite plate welding Ti-Ni welding wire of Φ 1.2mm.
The Ti-Ni welding wire that adopts embodiment 3 to make, coordinate titanium layer welding wire (pure titanium silk) and pipe line steel welding wire (YCGX80) welding titanium-pipe line steel (TA1-X80) composite plate, welding procedure is: composite plate is opened single V-butt (steel layer upper, titanium layer under), bevel angle is 60 °, first weld titanium layer, rear welding steel layer; Titanium layer adopts GTAW, and transition zone all adopts metal argon arc welding, and welding current is respectively: 80-100A, 100-130A, and the high-purity argon gas that protective gas is 99.99%, steel layer adopts CO
2gas shielded arc welding, welding current is 160-180A.
Welding joint mechanical property is: tensile strength 497MPa, yield strength 396MPa, elongation after fracture 10%, the contraction percentage of area 33%, room temperature ballistic work 32.5J.
Embodiment 4
Step 1, melting
According to percentage by weight, take respectively pure nickel powder 58%, titanium sponge 42%; The MgO crucible of the titanium sponge taking being put into vacuum induction melting furnace melts; After titanium sponge is fused into molten steel completely, carry out refining, the temperature of refining is 1680 ℃, and the time is 20min, is filled with argon gas after then molten steel temperature being down to 1550 ℃ to make pressure in stove reach 380mmHg; Again the pure nickel powder taking is added after stirring 2min in molten steel and tap, tapping temperature is 1480 ℃, be poured in ingot mould, in casting process, to make molten steel temperature remain on 1480 ℃, notice that molten steel surface is tranquil simultaneously, cast evenly, is preserved 30min by ingot mould at vacuum chamber after being poured, and then takes out ingot casting and is cooled to room temperature; In fusion process, each weight percentages of components is controlled and is: C≤0.04%, and N≤0.007%, O≤0.035%, H≤0.001%, Ni58%, surplus is Ti, each weight percentages of components sum is 100%;
Step 2, wire drawing
The ingot casting that adopts pneumatic hammer at 1200 ℃, step 1 to be obtained is forged into the square billet of 50mm * 50mm, then at 1200 ℃, adopts five line three-high mills of 200 type to be rolled into Φ 6.5mm wire rod; Finally by wire rod through mechanical descaling, pickling, 200 ℃ of dry 0.5h, heat treatment (950 ℃ of temperature, time 1h) after drawing step by step, form titanium-pipe line steel composite plate welding Ti-Ni welding wire of Φ 1.2mm.
The Ti-Ni welding wire that adopts embodiment 4 to make, coordinate titanium layer welding wire (pure titanium silk) and pipe line steel welding wire (YCGX80) welding titanium-pipe line steel (TA1-X80) composite plate, welding procedure is: composite plate is opened single V-butt (steel layer upper, titanium layer under), bevel angle is 60 °, first weld titanium layer, rear welding steel layer; Titanium layer adopts GTAW, and transition zone all adopts metal argon arc welding, and welding current is respectively: 80-100A, 105-135A, and the high-purity argon gas that protective gas is 99.99%, steel layer adopts CO
2gas shielded arc welding, welding current is 160-180A.
Welding joint mechanical property is: tensile strength 492MPa, yield strength 394MPa, elongation after fracture 11%, the contraction percentage of area 34%, room temperature ballistic work 34J.
As shown in Figure 2, as shown in Figure 2, Ti-Ni weld seam is connected well with TA1 weld seam weld metal zone deposited metal metallograph, and interface is wire, and Ti-Ni weld seam is being dendroid or massive texture near interface; Ti-Ni weld seam and X80 steel weld interface are wire, and in interface, two side welds intert and connect with fine strip shape or needle-like, and whole weld seam transition is even, are connected good.
Claims (5)
1. Ti-Ni welding wire is used in the welding of titanium-pipe line steel composite plate, it is characterized in that, composed of the following components according to percentage by weight: Ni52-58%, C≤0.04%, N≤0.007%, O≤0.035%, H≤0.001%, surplus is Ti, the percentage by weight sum of above component is 100%.
2. the preparation method of Ti-Ni welding wire for the welding of titanium-pipe line steel composite plate, is characterized in that, concrete steps are as follows:
Step 1, melting
According to percentage by weight, take respectively pure nickel powder 52-58%, titanium sponge 42-48%; The MgO crucible of the titanium sponge taking being put into vacuum induction melting furnace melts; After titanium sponge is fused into molten steel completely, carry out refining, be filled with argon gas after then molten steel temperature being down to 1550 ℃ to make pressure in stove reach 300-380mmHg; Again the pure nickel powder taking is added after stirring 2min in molten steel and tap, be poured in ingot mould, after being poured, ingot mould is preserved to 30min at vacuum chamber, then take out ingot casting and be cooled to room temperature; In fusion process, each weight percentages of components is controlled and is: C≤0.04%, and N≤0.007%, O≤0.035%, H≤0.001%, Ni52-58%, surplus is Ti, each weight percentages of components sum is 100%;
Step 2, wire drawing
The ingot casting that adopts pneumatic hammer at 1100-1200 ℃, step 1 to be obtained is forged into the square billet of 50mm * 50mm, then at 1100-1200 ℃, adopts five line three-high mills of 200 type to be rolled into Φ 6.5mm wire rod; Finally by wire rod through mechanical descaling, pickling, oven dry, heat treatment-dry wire drawing-after drawing step by step, form titanium-pipe line steel composite plate welding Ti-Ni welding wire of Φ 1.2-1.6mm.
3. the preparation method of Ti-Ni welding wire for titanium-pipe line steel composite plate welding according to claim 2, is characterized in that, in described step 1, the temperature of refining is 1680 ℃, and the time is 20min.
4. titanium-pipe line steel composite plate according to claim 2 is welded the preparation method with Ti-Ni welding wire, it is characterized in that, in described step 1, the tapping temperature of molten steel is 1480 ℃, and in casting process, molten steel temperature remains on 1480 ℃, notice that molten steel surface is tranquil, cast evenly simultaneously.
5. the preparation method of Ti-Ni welding wire for titanium-pipe line steel composite plate according to claim 2 welding, is characterized in that, the Acidwash solution using during pickling in step 2 for volume fraction be the aqueous solution that 20% sulfuric acid, 10% nitric acid and 5% hydrochloric acid are mixed with; Bake out temperature is 200 ℃, and the time is 0.5h; Heat treatment temperature is 880-980 ℃, and the time is 1h.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104028914A (en) * | 2014-05-30 | 2014-09-10 | 西安理工大学 | Welding wire for welding titanium-pipeline steel composite board approximate-steel layer and preparation method thereof |
| CN104028917A (en) * | 2014-06-04 | 2014-09-10 | 西安理工大学 | Flux-cored wire for fusion welding butt joint of titanium-steel composite board and preparation method of flux-cored wire |
| CN106475709A (en) * | 2016-12-14 | 2017-03-08 | 西安理工大学 | A kind of welding wire for welding titanium steel composite board transition zone and preparation method thereof |
| CN107160059A (en) * | 2017-05-17 | 2017-09-15 | 北京科技大学 | A kind of preparation of Ni base solders for soldering Nb Ti high temperature alloys and method for welding |
| CN108381057A (en) * | 2018-01-22 | 2018-08-10 | 北京科技大学 | A kind of preparation and method for welding for being brazed the CoTiNb solders of Nb-Ti high temperature alloys |
| CN113523719A (en) * | 2021-07-10 | 2021-10-22 | 上海泽超实业有限公司 | Machining process of helical blade |
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| CN104028914A (en) * | 2014-05-30 | 2014-09-10 | 西安理工大学 | Welding wire for welding titanium-pipeline steel composite board approximate-steel layer and preparation method thereof |
| CN104028917A (en) * | 2014-06-04 | 2014-09-10 | 西安理工大学 | Flux-cored wire for fusion welding butt joint of titanium-steel composite board and preparation method of flux-cored wire |
| CN104028917B (en) * | 2014-06-04 | 2016-06-29 | 西安理工大学 | Flux-cored wire of titanium-steel composite board and preparation method thereof is docked for melting welding |
| CN106475709A (en) * | 2016-12-14 | 2017-03-08 | 西安理工大学 | A kind of welding wire for welding titanium steel composite board transition zone and preparation method thereof |
| CN107160059A (en) * | 2017-05-17 | 2017-09-15 | 北京科技大学 | A kind of preparation of Ni base solders for soldering Nb Ti high temperature alloys and method for welding |
| CN108381057A (en) * | 2018-01-22 | 2018-08-10 | 北京科技大学 | A kind of preparation and method for welding for being brazed the CoTiNb solders of Nb-Ti high temperature alloys |
| CN113523719A (en) * | 2021-07-10 | 2021-10-22 | 上海泽超实业有限公司 | Machining process of helical blade |
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