CN101284336B - Argon-arc welding-braze welding composite welding method for connecting the titanium alloy and steel - Google Patents
Argon-arc welding-braze welding composite welding method for connecting the titanium alloy and steel Download PDFInfo
- Publication number
- CN101284336B CN101284336B CN 200810110773 CN200810110773A CN101284336B CN 101284336 B CN101284336 B CN 101284336B CN 200810110773 CN200810110773 CN 200810110773 CN 200810110773 A CN200810110773 A CN 200810110773A CN 101284336 B CN101284336 B CN 101284336B
- Authority
- CN
- China
- Prior art keywords
- welding
- titanium alloy
- steel
- solder
- titanium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Arc Welding In General (AREA)
Abstract
本发明属于焊接技术领域，涉及一种用于钛合金与钢焊接的氩弧焊-钎焊复合焊接方法。钛合金与钢焊接时，用Nb作为中间层，先在充氩箱中使用钛焊丝对钛合金和Nb中间层进行氩弧焊接，再对钛合金+Nb中间层与钢进行钎焊。本发明提出使用Nb作为中间层，利用熔焊和钎焊分别对Nb和钛合金和钢两种母材焊接的办法，阻隔了两种母材中钛和铁的直接接触，避免了钛合金和钢直接焊接时形成脆性相从而造成裂纹。采用铜锰基钎料和银铜钛钎料钎焊Nb与钢，选择的钎料所对应的钎焊温度避免了对钛合金母材性能的损伤。
The invention belongs to the field of welding technology, and relates to an argon arc welding-brazing composite welding method for welding titanium alloy and steel. When titanium alloy and steel are welded, Nb is used as the intermediate layer. First, titanium alloy and Nb intermediate layer are argon-arc welded with titanium wire in an argon-filled box, and then titanium alloy + Nb intermediate layer is brazed with steel. The present invention proposes to use Nb as the intermediate layer, and utilizes fusion welding and brazing to respectively weld Nb and two kinds of base materials of titanium alloy and steel to block the direct contact of titanium and iron in the two base materials, avoiding the titanium alloy When the steel is directly welded, a brittle phase is formed which causes cracks. The copper-manganese-based solder and silver-copper-titanium solder are used to braze Nb and steel, and the brazing temperature corresponding to the selected solder avoids damage to the properties of the titanium alloy base material.
Description
Technical field
The invention belongs to welding technology field, relate to a kind of argon-arc welding-braze welding composite welding method that is used for titanium alloy and steel welding.
Background technology
Titanium or titanium alloy specific strength height, corrosion resisting property are good, have obtained in fields such as Aeronautics and Astronautics, nuclear industry, oil, chemical industry using widely.Along with titanium alloy use increasing, the welding of titanium and other metal, especially titanium alloy are connected and the compound basic problem that has become the needs solution with steel.
In the welding process of titanium alloy and steel, different with distortion in the cooling procedure on the one hand owing to the two linear expansion coefficient, thermal conductivity differ bigger in weld heating, cause joint to form big internal stress; On the other hand, because the solid solubility between titanium and the iron is very little, form the intermetallic compound of fragility easily at welding point, as TiFe, TiFe
2, σ equates.In addition, the carbon in the steel easily with the gap of titanium formation fragility TiC mutually.The formation of these fragility phases has reduced the bond strength of dissimilar metal welding joint and plasticity, toughness.
Disclose a kind of employing argon tungsten-arc welding in " (welding science and technology " of the U.S. and be connected titanium alloy and a kind of mild steel, had in the weld seam of titanium alloy and mild steel that crisp hard (V) ternary phase is difficult to realize the melting welding of steel and titanium alloy for Fe, Ti.(author: agate Asia etc." titanium and the research of steel welding wire ".Welding science and technology, 2001 (4), P240-246) (M.Marya and S.Liu. " Search for filler metal for welding of ferrous alloys to titanium " .Scienceand Technology of Welding and Joining, 2001, Vol.6 (4): p240-246)
Nb carries out electron-bombardment welding or carries out diffusion welding (DW) appear in the newspapers (Li Yajiang, Wang Juan, Liu Peng as intermediate diffusion layer as packing material." welding and the application of the difficult wlding material of xenogenesis ".Chemical Industry Press, 2004: P186-188), do not adopt Nb to do the joint performance data that packing material utilizes electron beam welding and diffusion welding (DW) but provide.Adopt intermediate layer Nb to carry out vacuum electron beam and be welded in difficult control on the technology, and need special equipment, technology is complicated; For diffusion welding (DW), need pressurization, equipment also there is certain requirement, technology is more complicated relatively also.The method that adopts melting welding to combine with soldering, two kinds of methods are conventional welding method, and are easy to operation, need not special welding equipment.In addition, Ti and Nb infinitely dissolve each other, and utilize conventional fusion welding method can be easy to realize the two connection, and Fe, Ni in Nb and the steel all can generate certain intermetallic compound influences joint performance mutually.If Nb and steel side adopt melting welding, the Nb-Fe under the high temperature in the molten bath, Nb-Ni reaction is violent.And adopt the lower method for welding of temperature, under the infusible situation of mother metal and Nb intermediate layer, can suppress the reaction between Nb-Fe, the Nb-Ni relatively, thereby reduce the generation of intermetallic compound.
Summary of the invention
The objective of the invention is: a kind of Interface Crack of avoiding melting welding and soldering to cause is provided, guarantees to connect under most titanium alloy beta phase transition temperatures and can avoid high temperature to connect the argon-arc welding-braze welding composite welding method that titanium alloy and steel weld that is used for being lower than the damage of titanium alloy mother metal performance.
Technical scheme of the present invention is: when titanium alloy and steel welding, as the intermediate layer, use the titanium welding wire that titanium alloy and Nb intermediate layer are carried out the argon arc welding with Nb earlier in the argon filling case, again soldering is carried out in titanium alloy+Nb intermediate layer and steel.
When titanium alloy and steel welding, as the intermediate layer, in the argon filling case, use the titanium welding wire that titanium alloy and Nb intermediate layer are carried out the argon arc welding earlier, again vacuum brazing is carried out in titanium alloy+Nb intermediate layer and steel with Nb.
The solder of described soldering is copper manganese based solder or silver-bearing copper titanium solder, and wherein, silver-bearing copper titanium solder composition is: the percentage by weight of copper content is 25%～40%, and the percentage by weight of Ti content is not more than 7%, and surplus is a silver; The copper manganese based solder is two kinds of copper manganese nickel solder and copper manganese cobalt brazes, and the composition of copper manganese nickel solder is: the percentage by weight of manganese content is 20%～30%, and the percentage by weight of nickel content is 4%～22%, and surplus is a copper; The composition of copper manganese cobalt braze is: the percentage by weight of manganese content is 20%～30%, and the percentage by weight of cobalt content is 4%～10%, and surplus is a copper.
Advantage of the present invention is: the present invention proposes to use Nb as the intermediate layer, utilize melting welding and soldering respectively to the way of Nb and titanium alloy and two kinds of mother metals welding of steel, intercepted that titanium and the direct of iron contact in two kinds of mother metals, caused crackle mutually thereby form fragility when having avoided titanium alloy directly to weld with steel.Adopt copper manganese based solder and silver-bearing copper titanium solder soldering Nb and steel, the pairing brazing temperature of the solder of selection has been avoided the damage to titanium alloy mother metal performance.
The present invention proposes to use the silver-bearing copper titanium solder alloy brazed Nb and the steel of low Ti content, utilize the activity of titanium to promote Nb and solder to react, simultaneously Ti content is low in the solder has also avoided too much titanium and iron in the steel to react forming fragility mutually, and the comprehensive feasible of two kinds of reasons utilizes the joint performance of this solder brazing higher.The room temperature tensile intensity of joint can be brought up to 266.6MPa
Description of drawings
Fig. 1 is Nb and the 0Cr17Ni4Cu4Nb joint microstructure backscattered electron image that adopts Cu-Mn26-Ni10 (wt.%) solder to obtain under the soldering condition of 960 ℃/10min.
Fig. 2 is Nb and the 0Cr17Ni4Cu4Nb joint microstructure backscattered electron image that adopts Cu-Mn24-Co5 (wt.%) solder to obtain under the soldering condition of 960 ℃/10min.
Fig. 3 is Nb and the 0Cr17Ni4Cu4Nb joint microstructure backscattered electron image that adopts Ag-Cu35.2-Ti1.8 (wt.%) solder to obtain under the soldering condition of 910 ℃/15min.
Fig. 4 is Nb and the 0Cr17Ni4Cu4Nb joint microstructure backscattered electron image that adopts Ag-Cu27.5-Ti4.4 (wt.%) solder to obtain under the soldering condition of 910 ℃/15min.
The specific embodiment
When titanium alloy and steel welding, as the intermediate layer, in the argon filling case, use the titanium welding wire that titanium alloy and Nb intermediate layer are carried out the argon arc welding earlier, again soldering is carried out in titanium alloy+Nb intermediate layer and steel with Nb.
When titanium alloy and steel welding, as the intermediate layer, in the argon filling case, use the titanium welding wire that titanium alloy and Nb intermediate layer are carried out the argon arc welding earlier, again vacuum brazing is carried out in titanium alloy+Nb intermediate layer and steel with Nb.
The solder of described soldering is copper manganese based solder or silver-bearing copper titanium solder, and wherein, silver-bearing copper titanium solder composition is: the percentage by weight of copper content is 25%～40%, and the percentage by weight of Ti content is not more than 7%, and surplus is a silver; The copper manganese based solder is two kinds of copper manganese base nickel solder and copper manganese base cobalt brazes, and the composition of copper manganese base nickel solder is: the percentage by weight of manganese content is 20%～30%, and the percentage by weight of nickel content is 4%～22%, and surplus is a copper; The composition of copper manganese base cobalt braze is: the percentage by weight of manganese content is 20%～30%, and the percentage by weight of cobalt content is 4%～10%, and surplus is a copper.
The present invention uses Nb to do the intermediate layer, realizes being connected with argon arc welding in titanium alloy and Nb intermediate layer, is connected with the soldering realization between Nb intermediate layer and the steel.The specific embodiment is that titanium alloy is realized being connected with filling the argon arc welding in the argon filling case of titanium welding wire with Nb, and one of them carries out vacuum brazing with following solder for Nb and steel side:
(1) copper manganese based solder is two kinds of copper manganese base nickel solder and copper manganese base cobalt brazes, and wherein the composition of copper manganese base nickel solder is: the percentage by weight of manganese content is 20%～30%, and the percentage by weight of nickel content is 4%～22%, and surplus is a copper; The composition of copper manganese base cobalt braze is: the percentage by weight of manganese content is 20%～30%, and the percentage by weight of cobalt content is 4%～10%, and surplus is a copper.
(2) silver-bearing copper titanium solder, wherein the percentage by weight of copper content is 25%～40%, and the titaniferous amount is not more than 7%, and surplus is a silver.
When using above-mentioned method for welding, the solder of recommendation is the copper manganese based solder, and type of service is a powdery, and the best brazing process parameter of recommendation is: brazing temperature: 900～980 ℃, and holding time of brazing: 0～60min; The solder of recommending is the silver-bearing copper titanium solder, and type of service is the paper tinsel shape, and the best brazing process parameter of recommendation is: brazing temperature: 800～960 ℃, and holding time of brazing: 0～60min.
Concrete processing step is as follows:
(1) assembling before the melting welding: utilize anchor clamps that titanium alloy and Nb intermediate layer are positioned;
(2) melting welding: titanium alloy is put into the argon filling case together with anchor clamps after finish location, Nb intermediate layer, and filling Ti welding wire realization titanium alloy is connected with Nb's;
(3) assembling before the soldering: utilize anchor clamps titanium alloy+Nb that melting welding is good and steel to position, add solder at the linkage interface place;
(4) heating: the weldment of having good positioning is put into vacuum furnace, treat that vacuum is not less than 3 * 10
-2Behind the Pa, the programming rate heating with 5～18K/min for the copper manganese based solder, is heated to 900～980 ℃, insulation 0～60min; For the silver-bearing copper titanium solder, be heated to 800～960 ℃, insulation 0～60min;
(5) cooling: cool to room temperature with the furnace.
Table 1 provides the embodiment of the present invention to titanium alloy+Nb and drill rod weldering, comprises the room temperature tensile intensity of solder, soldering processes, titanium alloy TC 4+Nb and the steel 0Cr17Ni4Cu4Nb jointing of use.
The embodiment of table 1 titanium alloy+Nb and drill rod weldering
| Sequence number | Solder composition (wt.%) | Form | Soldering processes | Joint room temperature hot strength (MPa) |
| 1 | Cu-Mn26-Ni10 | Powder | 960℃/0～60min | 130.8～201 |
| 2 | Cu-Mn23-Ni12 | Powder | 960℃/0～60min | 126.6～188.4 |
| 3 | Cu-Mn21-Ni4 | Powder | 940℃/0～60min | 134～210.6 |
| 4 | Cu-Mn22-Ni4 | Powder | 930℃/0～60min | 128.2～194.6 |
| 5 | Cu-Mn25-Ni5 | Powder | 950℃/0～60min | 130～198.4 |
| 6 | Cu-Mn24-Ni8 | Powder | 960℃/0～60min | 112.6～187 |
| 7 | Cu-Mn30-Ni16 | Powder | 970℃/0～60min | 108.8～176.8 |
| 8 | Cu-Mn20-Ni14 | Powder | 970℃/0～60min | 110.3～189.5 |
| 9 | Cu-Mn28-Ni18 | Powder | 980℃/0～60min | 106.7～195.5 |
| 10 | Cu-Mn26-Ni20 | Powder | 980℃/0～60min | 102.3～190.8 |
| 11 | Cu-Mn28-Ni22 | Powder | 980℃/0～60min | 114.6～198.2 |
| 12 | Cu-Mn27-Ni13 | Powder | 960℃/0～60min | 120.9～211.6 |
| 13 | Cu-Mn30-Ni6 | Powder | 940℃/0～60min | 115.6～195.4 |
| 14 | Cu-Mn24-Co5 | Powder | 960℃/0～60min | 141.1～254.4 |
| 15 | Cu-Mn30-Co4 | Powder | 930℃/0～60min | 135.6～244.8 |
| 16 | Cu-Mn23-Co7 | Powder | 950℃/0～60min | 128.2～233.6 |
| 17 | Cu-Mn25-Co8 | Powder | 930℃/0～60min | 132.1～240.5 |
| 18 | Cu-Mn26-Co6 | Powder | 940℃/0～60min | 136.8～244.2 |
| 19 | Cu-Mn27-Co10 | Powder | 960℃/0～60min | 122.8～236.7 |
| 20 | Cu-Mn20-Co10 | Powder | 970℃/0～60min | 120.1～222.2 |
| 21 | Cu-Mn23-Co5 | Powder | 900℃/0～60min | 146.3～248.8 |
| 22 | Cu-Mn23-Co8 | Powder | 950℃/0～60min | 125.5～232.7 |
| 23 | Cu-Mn20-Co5 | Powder | 960℃/0～60min | 130～243.3 |
| 24 | Cu-Mn27-Co8 | Powder | 980℃/0～60min | 136.4～235.2 |
| 25 | Cu-Mn24-Co9 | Powder | 950℃/0～60min | 122.9～218.4 |
| 26 | Cu-Mn27-Co9 | Powder | 980℃/0～60min | 120.4～221.3 |
| 27 | Ag-Cu38.5-Ti0.5 | The paper tinsel shape | 880℃/0～60min | 188.2～224.6 |
| 28 | Ag-Cu40-Ti1.0 | Powder | 800℃/0～60min | 192.3～230.3 |
| 29 | Ag-Cu40-Ti1.0 | The paper tinsel shape | 840℃/0～60min | 194.5～236.2 |
| 30 | Ag-Cu39-Ti1.5 | The paper tinsel shape | 900℃/0～60min | 208.5～253.7 |
| 31 | Ag-Cu35.2-Ti1.8 | Powder | 910℃/0～60min | 204.2～248.6 |
| 32 | Ag-Cu35.2-Ti1.8 | The paper tinsel shape | 910℃/0～60min | 213.2～266.6 |
| 33 | Ag-Cu28-Ti2.0 | Powder | 890℃/0～60min | 211.4～247 |
| 34 | Ag-Cu30-Ti2.5 | The paper tinsel shape | 900℃/0～60min | 187.6～225 |
| 35 | Ag-Cu38-Ti3.0 | The paper tinsel shape | 910℃/0～60min | 155.6～199.4 |
| 36 | Ag-Cu35.5-Ti3.5 | Powder | 925℃/0～60min | 133.3～187.9 |
| 37 | Ag-Cu32-Ti4.0 | The paper tinsel shape | 920℃/0～60min | 135.5～170.4 |
| 38 | Ag-Cu27.5-Ti4.4 | The paper tinsel shape | 910℃/0～60min | 125～160.6 |
| 39 | Ag-Cu30-Ti5.0 | The paper tinsel shape | 910℃/0～60min | 114.7～155.3 |
| 40 | Ag-Cu26.5-Ti5.5 | Powder | 915℃/0～60min | 118.6～160.2 |
| 41 | Ag-Cu28-Ti6.0 | Powder | 910℃/0～60min | 102.6～144.8 |
| 42 | Ag-Cu27-Ti6.5 | Powder | 960℃/0～60min | 111.5～132.8 |
| 43 | Ag-Cu25-Ti7.0 | Powder | 920℃/0～60min | 98.1～114.5 |
All joints all break in the linkage interface of Nb and steel (referring to accompanying drawing 1,2,3,4).Contrast joint performance data adopt the joint performance data of Ag-Cu35.2-Ti1.8 solder the highest, and reach 266.6MPa, and adopt the joint performance data of Ag-Cu27.5-Ti4.4 lower, be 125～160.6MPa.The strength of joint of two kinds of copper manganese nickel and the soldering of copper manganese cobalt braze is between the strength of joint of two kinds of silver-bearing copper titanium solders.
Claims (1)
1. argon-arc welding-braze welding composite welding method that is used for the welding of titanium alloy and steel, when titanium alloy and steel welding, with Nb as the intermediate layer, in the argon filling case, use the titanium welding wire that titanium alloy and Nb intermediate layer are carried out the argon arc welding earlier, again vacuum brazing is carried out in titanium alloy+Nb intermediate layer and steel, it is characterized in that, used solder is the copper manganese based solder, the copper manganese based solder is two kinds of copper manganese nickel solder or copper manganese cobalt brazes, the composition of copper manganese nickel solder is: the percentage by weight of manganese content is 20%～30%, the percentage by weight of nickel content is 4%～22%, and surplus is a copper; The composition of copper manganese cobalt braze is: the percentage by weight of manganese content is 20%～30%, and the percentage by weight of cobalt content is 4%～10%, and surplus is a copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810110773 CN101284336B (en) | 2008-05-30 | 2008-05-30 | Argon-arc welding-braze welding composite welding method for connecting the titanium alloy and steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810110773 CN101284336B (en) | 2008-05-30 | 2008-05-30 | Argon-arc welding-braze welding composite welding method for connecting the titanium alloy and steel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101284336A CN101284336A (en) | 2008-10-15 |
| CN101284336B true CN101284336B (en) | 2011-05-11 |
Family
ID=40056870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810110773 Active CN101284336B (en) | 2008-05-30 | 2008-05-30 | Argon-arc welding-braze welding composite welding method for connecting the titanium alloy and steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101284336B (en) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101774062B (en) * | 2009-12-30 | 2011-08-10 | 山东大学 | Lamination composite material and stainless steel argon arc melt-brazing method |
| RU2450197C1 (en) * | 2010-10-13 | 2012-05-10 | Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом" | Joint of pipeline from stainless steel with vessel from titanium alloy and method of its realisation |
| RU2450196C1 (en) * | 2010-10-18 | 2012-05-10 | Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом" | Joint of pipeline from stainless steel with vessel from titanium alloy and method of its realisation |
| CN102009284B (en) * | 2010-11-04 | 2012-09-26 | 西安航空动力股份有限公司 | Brazing filler metal for welding of high-temperature alloy and cupronickel and preparation method thereof |
| CN102019488B (en) * | 2010-12-08 | 2012-06-27 | 西安优耐特容器制造有限公司 | Electric arc fusion welding-braze welding method of niobium and steel |
| CN102229019B (en) * | 2011-04-28 | 2014-07-02 | 中国航空工业集团公司北京航空材料研究院 | Argon arc welding method suitable for TiAl-based alloy material and titanium alloy |
| CN102728937B (en) * | 2012-07-06 | 2014-12-10 | 山东大学 | Dissimilar metal welding method of titanium alloy and austenitic stainless steel |
| CN102794571B (en) * | 2012-07-26 | 2015-08-12 | 江苏民生特种设备集团有限公司 | The welding method of Stainless Steel Tubular Plates and red copper heat exchanger tube |
| CN104907736B (en) * | 2015-06-15 | 2017-09-29 | 西安理工大学 | Titanium pipe line steel welding Cu Ag Nb welding wires and preparation method thereof |
| CN105346161B (en) * | 2015-10-30 | 2017-07-25 | 中南大学 | A kind of tungsten/transition layer/steel composite material and its preparation method of low temperature and low pressure active diffusion connection |
| CN106180982A (en) * | 2016-08-11 | 2016-12-07 | 浙江诚信医化设备有限公司 | A kind of titanium article and the weld seam welding method of steel part |
| CN109175659B (en) * | 2018-10-31 | 2020-09-25 | 天津重型装备工程研究有限公司 | Method for positioning bonding interface of metal composite product |
| CN111318778B (en) * | 2018-12-17 | 2021-07-20 | 哈尔滨工业大学 | A step-by-step brazing method to achieve toughening of titanium alloy and superalloy brazed joints |
| CN110039209A (en) * | 2019-04-24 | 2019-07-23 | 首钢集团有限公司 | A kind of welding method of dissimilar metal |
| CN111545949A (en) * | 2020-05-22 | 2020-08-18 | 浙江诺维雅工贸有限公司 | Solder and heat-insulating container welded by same |
| CN114261156B (en) * | 2021-12-28 | 2024-05-03 | 郑州机械研究所有限公司 | A multilayer sandwich brazing foil for titanium alloy brazing and a preparation method thereof |
| CN114393344B (en) * | 2021-12-30 | 2024-05-14 | 无锡日月合金材料有限公司 | Solder for multistage brazing of electric vacuum device and preparation method thereof |
| CN114888388B (en) * | 2022-06-20 | 2023-05-02 | 哈尔滨工业大学 | Method for brazing titanium alloy and nickel-based superalloy |
| CN115870591B (en) * | 2023-02-20 | 2023-06-23 | 天津市金桥焊材科技有限公司 | MIG welding process method for titanium-steel dissimilar metal and welding wire used by MIG welding process method |
-
2008
- 2008-05-30 CN CN 200810110773 patent/CN101284336B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN101284336A (en) | 2008-10-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101284336B (en) | Argon-arc welding-braze welding composite welding method for connecting the titanium alloy and steel | |
| CN105346161B (en) | A kind of tungsten/transition layer/steel composite material and its preparation method of low temperature and low pressure active diffusion connection | |
| CN105855705B (en) | A kind of stainless steel titanium alloy dissimilar metal method for laser welding | |
| CN101954551B (en) | Brazing filler metal for welding molybdenum-copper alloy and austenitic stainless steel and process | |
| US7988908B2 (en) | Filler metal alloy compositions | |
| CN101298108B (en) | Technique for vacuum brazing titanium alloy and steel | |
| CN109623201B (en) | A kind of nickel-based brazing filler metal for nickel-based superalloy brazing and preparation method thereof | |
| CN107931840B (en) | Laser-induced monotectic and homogeneous reaction welding method for titanium-nickel heterojunction | |
| Yu et al. | Dissimilar metal joining of Q235 mild steel to Ti6Al4V via resistance spot welding with Ni–Cu interlayer | |
| CN112008180A (en) | Ni3High-performance brazing method of Al-based single crystal alloy | |
| CN108161156A (en) | A kind of vacuum brazing method of molybdenum alloy and graphite | |
| CN113732563B (en) | Transition layer welding wire for preparing titanium-steel gradient composite material CMT and preparation method | |
| CN101185992B (en) | A kind of manganese-based solder containing active element Ti suitable for brazing molybdenum and its alloys | |
| CN101653873B (en) | Beryllium Copper Dissimilar Metal Welding Method | |
| US10040147B2 (en) | Low-melting iron-based filler alloys | |
| CN113245747A (en) | High-entropy alloy high-temperature brazing filler metal | |
| CN113399860B (en) | A kind of nickel-based welding wire for copper-steel clad plate transition layer and preparation method thereof | |
| CN201613422U (en) | A composite welding tool for friction stir welding of metal matrix composites | |
| CN105965176A (en) | Ni-based rapidly-cooled brazing material and brazing process for brazing tungsten-copper alloy and stainless steel | |
| CN103406684A (en) | Silver-copper-indium-nickel intermediate-temperature brazing solder | |
| CN108907503A (en) | It is a kind of for welding the amorphous state high-entropy alloy solder and preparation method thereof of tantalum and stainless steel | |
| CN103266240A (en) | Nickel-based alloy for graphite and stainless steel soldering and preparation method thereof | |
| JP2014163587A (en) | Heat exchanger and method for producing the same | |
| CN1709629A (en) | Joint Strengthening Method for Controlling the Interface Structure of Copper Alloy and Steel Butt Welding Joints | |
| CN111151864A (en) | Welding material and process for connecting tungsten-based powder alloy and low-expansion high-temperature alloy |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |