CN105171186A - Welding method for conducting build up welding through stellite alloy - Google Patents
Welding method for conducting build up welding through stellite alloy Download PDFInfo
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- CN105171186A CN105171186A CN201510462612.7A CN201510462612A CN105171186A CN 105171186 A CN105171186 A CN 105171186A CN 201510462612 A CN201510462612 A CN 201510462612A CN 105171186 A CN105171186 A CN 105171186A
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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
- B23K9/00—Arc welding or cutting
- B23K9/04—Welding for other purposes than joining, e.g. built-up 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
- 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
- B23K35/3046—Co 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
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
- B23K9/167—Arc welding or cutting making use of shielding gas and of a non-consumable electrode
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Abstract
The invention discloses a welding method for conducting build up welding through stellite alloy, and belongs to the field of welding. The method includes the steps that the first time of heat preservation is conducted after a build up welded workpiece is preheated; build up welding is conducted through a welding wire and manual argon tungsten-arc welding by means of the build up welded workpiece after the first time of heat preservation so that the welding wire can form a build up welded layer at the weld joint of the build up welded workpiece, wherein it is ensured that the build up welded workpiece is 200 DEG C to 300 DEG C in the build up welding process, and the welding wire is made of stellite alloy; after welding is completed, thermal treatment is conducted on the build up welded workpiece, wherein the initial temperature of thermal treatment is 200 DEG C to 300 DEG C, and the second time of heat preservation is conducted after the initial temperature of thermal treatment is raised to 850-870 DEG C at the speed of 80 DEG C per hour; and cooing is conducted. According to the method, the build up welded workpiece is preheated, the cooling speed of the weld joint can be decreased through preheating, the welded build up welded workpiece can be slowly cooled, a product is prevented from generating welding cracks especially cold cracks, and meanwhile it can be ensured that the build up welded layer has high strength.
Description
Technical field
The present invention relates to welding field, particularly a kind of Si Tailite of employing alloy carries out the welding method of built-up welding.
Background technology
Si Tailite (Stellite) alloy is the carbide alloy of a kind of ability all kinds abrasion and corrosion and high-temperature oxydation, namely usually said cobalt alloy.Si Tailite alloy has higher dimensional stability, wearability, corrosion resistance and antioxygenic property, usually used as the performance such as wear-resisting, anti-corrosion of overlay cladding for increasing product.
At present, when adopting Si Tailite alloy to carry out built-up welding as welding wire, built-up welding workpiece is carried out built-up welding in the condition of not preheating, because during welding, built-up welding workpiece does not carry out preheating, welding region and built-up welding part temperature difference larger, welding cooling velocity is fast, and what cooling velocity can cause overlay cladding faster organizes coarse grains, thus makes to adopt Si Tailite alloy to have very high hardness as the product of welding wire welding fabrication.
Realizing in process of the present invention, inventor finds that prior art at least exists following problem:
Si Tailite alloy inherently has higher hardness, quick cooling can improve the hardness of Si Tailite alloy further, because the hardness of material and its fragility are proportional, hardness is higher, fragility is larger, fragility is larger, and occur that the probability of crackle or embrittlement is also larger, crackle or embrittlement can shorten the service life of Si Tailite alloy.
Summary of the invention
Easily there is the problem of crackle or embrittlement in order to solve heap welding method of the prior art, embodiments providing the welding method that a kind of Si Tailite of employing alloy carries out built-up welding.Described technical scheme is as follows:
Embodiments provide the welding method that a kind of Si Tailite of employing alloy carries out built-up welding, described method comprises: carry out preheating to built-up welding workpiece, and preheat temperature is 350 DEG C-400 DEG C, carries out first time insulation after described built-up welding workpiece reaches preheat temperature;
Welding wire and GTAW is adopted to carry out built-up welding to the described built-up welding workpiece after first time insulation, described welding wire is made to form overlay cladding on described built-up welding workpiece, ensure that when built-up welding the temperature of described built-up welding workpiece is 200 DEG C-300 DEG C, described welding wire is Si Tailite alloy, and the composition of described welding wire comprises: carbon, chromium, tungsten, silicon, manganese, iron, nickel and cobalt, the weight portion of carbon is 0.9-1.4 part, the weight portion of chromium is 26.0-32.0 part, the weight portion of tungsten is 3.0-6.0 part, weight portion≤2.0 part of silicon, weight portion≤1.0 part of manganese, weight portion≤3.0 part of iron, weight portion≤3.0 part of nickel, surplus is cobalt, weight portion summation≤0.5 part of other impurity,
Heat-treat described built-up welding workpiece, described heat treated initial temperature is 200 DEG C-300 DEG C, and second time insulation is carried out in described heat treatment after being warming up to 850 DEG C-870 DEG C by described initial temperature with the speed of 80 DEG C/h;
Cool described built-up welding workpiece.
Particularly, when the thickness of described built-up welding workpiece is less than or equal to 25mm, the time of described first time insulation is 0.5h-1h.
Further, when the thickness of described built-up welding workpiece is greater than 25mm, the thickness of described built-up welding workpiece often increases the time lengthening 0.5h of first time insulation described in 25mm on the basis of 25mm.
Particularly, when adopting GTAW to carry out built-up welding, protective gas is argon gas, and the purity of argon gas is 99.99%, and the stem elongation degree of tungsten electrode is 5mm-8mm.
Particularly, the welding current of described handwork tungsten electrode argon arc is 160A-180A, and speed of welding is 180mm/min-200mm/min.
Particularly, when adopting described GTAW to carry out built-up welding, take multilayer multiple tracks and coordinate the welding manner of backstep.
Particularly, the torch swinging track of described GTAW is two-dimensional helical curve, and described in every one deck, the thickness of overlay cladding is no more than 1mm.
Particularly, when the thickness of described overlay cladding is less than or equal to 3mm, the time of described second time insulation is 1h-1.5h.
Further, when the thickness of described overlay cladding is greater than 3mm, the thickness of described overlay cladding often increases the time of second time insulation described in 3mm for extending 0.5h on the basis of 3mm.
Further, when the thickness of described built-up welding workpiece is greater than 25mm, the thickness of described built-up welding workpiece often increases the time lengthening 0.5h of second time insulation described in 25mm on the basis of 25mm.
The beneficial effect that the technical scheme that the embodiment of the present invention provides is brought is: embodiments provide the welding method that a kind of Si Tailite of employing alloy carries out built-up welding, the method adopts preheating to built-up welding workpiece, preheating can reduce the cooling velocity of commissure, the built-up welding workpiece of postwelding is cooled slowly, reduce the degree of hardening of weld dimensions, improve the crack resistance of welding point, prevent product from producing weld crack, particularly cold crack, preheating simultaneously can suppress the increase of surfacing hardness, the hardness of overlay cladding is controlled in the scope suitable with the hardness of built-up welding workpiece, make the product obtained can have longer service life, in addition, preheating can make the bulk temperature of built-up welding workpiece even, avoid the joint internal force caused because being heated inequality different, and then cause the internal stress of postwelding joint excessive and form the defect of crackle or cracking, simultaneously preheating can more effective guarantee weld interpass temperature, reduce the temperature difference between welding region and welded piece largely, reduce the ess-strain speed of welding point, thus reduce the occurrence probability of welding cold cracking, simultaneously, by controlling heat treated temperature and ensureing that heat treated temperature-rise period is steady, thus inhibit the formation of coarse grain, the seam organization obtained is more even, overlay cladding is made to have the hardness suitable with built-up welding workpiece itself and intensity, overlay cladding is avoided to crack or embrittlement.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the flow chart that employing Si Tailite alloy that the embodiment of the present invention provides carries out the welding method of built-up welding.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
Embodiment
Embodiments provide the welding method that a kind of Si Tailite of employing alloy carries out built-up welding, be applicable to the stellite layer built-up welding of gas turbine front housing, method flow diagram as shown in Figure 1, the method comprises:
Step 1: carry out preheating to built-up welding workpiece, preheat temperature is 350 DEG C-400 DEG C, carries out first time insulation after built-up welding workpiece reaches preheat temperature.
Step 2: adopt welding wire and GTAW to carry out built-up welding to the built-up welding workpiece after insulation, welding wire is made to form overlay cladding on built-up welding workpiece, ensure that when built-up welding the temperature of built-up welding workpiece is 200 DEG C-300 DEG C when welding, welding wire is Si Tailite alloy, and the composition of welding wire comprises: carbon, chromium, tungsten, silicon, manganese, iron, nickel and cobalt, the weight portion of carbon is 0.9-1.4 part, the weight portion of chromium is 26.0-32.0 part, the weight portion of tungsten is 3.0-6.0 part, weight portion≤2.0 part of silicon, weight portion≤1.0 part of manganese, weight portion≤3.0 part of iron, weight portion≤3.0 part of nickel, surplus is cobalt, weight portion summation≤0.5 part of other impurity.The welding wire of this composition can make to prevent product from cracking or embrittlement, wherein, the temperature of built-up welding workpiece can by the interlayer temperature of temperature measurer measuring workpieces, when the temperature of built-up welding workpiece is lower than 200 DEG C or higher than 300 DEG C, by the mode heated or cool, the temperature of overlay cladding can be adjusted between 200 ~ 300 DEG C.Temperature measurer can use contact type thermometric indicator, carries out thermometric respectively for determining the temperature of built-up welding workpiece in the surface of built-up welding workpiece, center and both ends of the surface.
Step 3: built-up welding workpiece is heat-treated, heat treated initial temperature is 200 DEG C-300 DEG C, second time insulation is carried out in heat treatment after being warming up to 850 DEG C-870 DEG C by initial temperature with the speed of 80 DEG C/h, wherein, when heat treated temperature rises to 850 DEG C-870 DEG C, the eradicating efficacy of the welding residual stress at welding point place can be increased, the welding deformation degree preventing reducing built-up welding workpiece ftractures or the generation of crackle, simultaneously, the microscopic structure of improvement, refinement heat affected area greatly, improves joint toughness and crack resistance.
Step 4: will cool through heat treated built-up welding workpiece.
Particularly, when the thickness of built-up welding workpiece is less than or equal to 25mm, the time of insulation first time is 0.5h-1h.
Further, when the thickness of built-up welding workpiece is greater than 25mm, the thickness of built-up welding workpiece often increases the time lengthening 0.5h of 25mm first time insulation on the basis of 25mm, when the thickness of built-up welding workpiece is 25mm non-integral multiple, thickness outside integral multiple also extends 0.5h again according to 25mm, and the thickness of built-up welding workpiece is larger, and required for built-up welding workpiece heat penetration, the time is longer, therefore, in order to ensure that built-up welding workpiece heat penetration needs to extend temperature retention time.
Particularly, when adopting GTAW to carry out built-up welding, protective gas is argon gas, and the purity of argon gas is 99.99%.
Particularly, the welding current of handwork tungsten electrode argon arc is 160A-180A, weldingvoltage Self Matching, and speed of welding is 180mm/min-200mm/min.
Particularly, adopt GTAW when carrying out built-up welding, take multi-layer multi-pass welding and coordinate the welding manner of backstep.Overlaying surface wider width is there will be when built-up welding, and beyond the situation of single weld width (general 4 ~ 5mm), now need could be filled by multiple welding bead to be paved with overlaying surface, therefore weld seam is formed by the stacking built-up welding of multiple layer, each layer is formed side by side by multiple welding bead, therefore is called multi-pass welding, when backstep refers to that weld seam is longer, the weld seam of built-up welding workpiece is divided into some sections, and segmentation is welded, the welding method that every section of welding direction is contrary with whole piece weld seam growing direction.
Particularly, the torch swinging track of GTAW is two-dimensional helical curve, and the thickness of every one deck overlay cladding is no more than 1mm.The torch swinging track of two-dimensional helical curve can ensure that overlay cladding has higher intensity.The torch swinging track of two-dimensional helical curve can improve and improve the gas shield effect of welding point, thus reduces the generation of the defect such as weld blowhole, crackle; In addition, adopt spiral welding effectively can improve uniformity, the uniformity of appearance of weld outward appearance, thus reduce the constraint (restraint) degree of welding point, and then effectively reduce the generation of weld crack; Meanwhile, adopt spiral welding can obtain thinner overlay cladding thickness, reduce welding pool region and the degree of depth, reduce the impact of diluting effect welding joint mechanical property.
Particularly, when the thickness of overlay cladding is less than or equal to 3mm, the time of second time insulation is 1h-1.5h.
Further, when the thickness of overlay cladding is greater than 3mm, the thickness of overlay cladding often increases the time of 3mm second time insulation for extending 0.5h on the basis of 3mm.When the thickness of overlay cladding is 3mm non-integral multiple, the thickness outside integral multiple also extends 0.5h again according to 3mm, and temperature retention time is more sufficient, is more not easy to occur crackle.
Further, when the thickness of built-up welding workpiece is greater than 25mm, the thickness of built-up welding workpiece often increases the time lengthening 0.5h of 25mm second time insulation on the basis of 25mm.When the thickness of built-up welding workpiece is 25mm non-integral multiple, thickness outside integral multiple also extends 0.5h again according to 25mm, and the thickness of built-up welding workpiece is larger, and required for built-up welding workpiece heat penetration, the time is longer, therefore, in order to ensure that built-up welding workpiece heat penetration needs to extend temperature retention time.
Particularly, the diameter of welding wire is 3.2mm, and the stem elongation degree of tungsten electrode is 5mm-8mm, and the stem elongation reducing tungsten electrode can make welding wire be in all the time in protective gas atmosphere in welding process.
Embodiment one
Particularly, built-up welding thickness of workpiece is 25mm, and the thickness of overlay cladding is 3mm.
Step 1: carry out preheating to built-up welding workpiece, preheat temperature is 350 DEG C, and after built-up welding workpiece reaches preheat temperature, carry out first time insulation, temperature retention time is 0.5h for the first time.
Step 2: adopt welding wire and GTAW to carry out built-up welding to the built-up welding workpiece after insulation, welding wire is made to form overlay cladding on built-up welding workpiece, ensure that when built-up welding the temperature of built-up welding workpiece is 200 DEG C when welding, welding wire is Si Tailite alloy, and the composition of welding wire comprises: carbon, chromium, tungsten, silicon, manganese, iron, nickel and cobalt, the weight portion of carbon is 0.9 part, the weight portion of chromium is 26.0 parts, the weight portion of tungsten is 3.0 parts, weight portion≤2.0 part of silicon, weight portion≤1.0 part of manganese, weight portion≤3.0 part of iron, weight portion≤3.0 part of nickel, surplus is cobalt, weight portion summation≤0.5 part of other impurity.
Step 3: heat-treat built-up welding workpiece, heat treated initial temperature is 200 DEG C, and second time insulation is carried out in heat treatment after being warming up to 850 DEG C by initial temperature with the speed of 80 DEG C/h.
Step 4: will cool through heat treated built-up welding workpiece.
Particularly, when adopting GTAW to carry out built-up welding, protective gas is argon gas, and the purity of argon gas is 99.99%.
Particularly, the welding current of handwork tungsten electrode argon arc is 160A, weldingvoltage Self Matching, and speed of welding is 180mm/min.
Particularly, adopt GTAW when carrying out built-up welding, take multilayer multiple tracks and coordinate the welding manner of backstep.
Particularly, adopt the welding gun of spiral swing GTAW, and the thickness of every one deck overlay cladding is no more than 1mm.
Particularly, the diameter of welding wire is 3.2mm, and the stem elongation degree of tungsten electrode is 8mm.
Embodiment two
Embodiment two adopts the processing method identical with embodiment one, and method difference is as follows:
Particularly, built-up welding thickness of workpiece is 45mm, and the thickness of overlay cladding is 6mm.
Step 1: carry out preheating to built-up welding workpiece, preheat temperature is 400 DEG C, carries out first time insulation after built-up welding workpiece reaches preheat temperature, and the time of insulation first time is 1.5h.
Step 2: adopt welding wire and GTAW to carry out built-up welding to the built-up welding workpiece after insulation, welding wire is made to form overlay cladding on built-up welding workpiece, ensure that when built-up welding the temperature of built-up welding workpiece is 300 DEG C when welding, welding wire is Si Tailite alloy, and the composition of welding wire comprises: carbon, chromium, tungsten, silicon, manganese, iron, nickel and cobalt, the weight portion of carbon is 1.4 parts, the weight portion of chromium is 32.0 parts, the weight portion of tungsten is 6.0 parts, weight portion≤2.0 part of silicon, weight portion≤1.0 part of manganese, weight portion≤3.0 part of iron, weight portion≤3.0 part of nickel, surplus is cobalt, weight portion summation≤0.5 part of other impurity.
Step 3: heat-treat built-up welding workpiece, heat treated initial temperature is 300 DEG C, and second time insulation is carried out in heat treatment after being warming up to 870 DEG C by initial temperature with the speed of 80 DEG C/h, and the time of second time insulation is 2h.
Step 4: will cool through heat treated built-up welding workpiece.
Particularly, the method also comprises: when the thickness of built-up welding workpiece is less than or equal to 25mm, and the time of insulation first time is 0.5h-1h.
Particularly, when adopting GTAW to carry out built-up welding, protective gas is argon gas, and the purity of argon gas is 99.99%.
Particularly, the welding current of handwork tungsten electrode argon arc is 180A, weldingvoltage Self Matching, and speed of welding is 200mm/min.
Particularly, the diameter of welding wire is 3.2mm, and the stem elongation degree of tungsten electrode is 6mm.
Embodiment three
Embodiment three adopts the processing method identical with embodiment one, and method difference is as follows:
Particularly, built-up welding thickness of workpiece is 35mm, and the thickness of overlay cladding is 4.5mm.
Step 1: carry out preheating to built-up welding workpiece, preheat temperature is 380 DEG C, carries out first time insulation after built-up welding workpiece reaches preheat temperature, and the time of insulation first time is 1.5h.
Step 2: adopt welding wire and GTAW to carry out built-up welding to the built-up welding workpiece after insulation, welding wire is made to form overlay cladding on built-up welding workpiece, ensure that when built-up welding the temperature of built-up welding workpiece is 200 DEG C-300 DEG C when welding, welding wire is Si Tailite alloy, and the composition of welding wire comprises: carbon, chromium, tungsten, silicon, manganese, iron, nickel and cobalt, the weight portion of carbon is 0.9-1.4 part, the weight portion of chromium is 26.0-32.0 part, the weight portion of tungsten is 3.0-6.0 part, weight portion≤2.0 part of silicon, weight portion≤1.0 part of manganese, weight portion≤3.0 part of iron, weight portion≤3.0 part of nickel, surplus is cobalt, weight portion summation≤0.5 part of other impurity.
Step 3: heat-treat built-up welding workpiece, heat treated initial temperature is 200 DEG C-300 DEG C, and second time insulation is carried out in heat treatment after being warming up to 850 DEG C-870 DEG C by initial temperature with the speed of 80 DEG C/h, and the time of second time insulation is 2h.
Step 4: will cool through heat treated built-up welding workpiece.
Further, the method also comprises: when the thickness of built-up welding workpiece is greater than 25mm, the thickness of built-up welding workpiece often increases the time lengthening 0.5h of 25mm first time insulation on the basis of 25mm, the thickness of built-up welding workpiece is larger, required for built-up welding workpiece heat penetration, the time is longer, therefore, in order to ensure that built-up welding workpiece heat penetration needs to extend temperature retention time.
Particularly, when adopting GTAW to carry out built-up welding, protective gas is argon gas, and the purity of argon gas is 99.99%.
Particularly, the welding current of handwork tungsten electrode argon arc is 170A, weldingvoltage Self Matching, and speed of welding is 190mm/min.
Particularly, the diameter of welding wire is 3.2mm, and the stem elongation degree of tungsten electrode is 5mm.
Product embodiment one, embodiment two and embodiment three obtained, by carrying out 100% visual examination to overlaying surface, visually observes through 10 times of magnifying glasses, all do not find visible crackle and do not merge, the open defect such as slag inclusion; By carrying out 100% dyeing inspection to overlaying surface, all do not find linear, pore display, result meets the requirement of JB/T4730-2005I level.According to GB/T230.1 " metallic rockwell hardness test part 1: test method ", rockwell hardness testing is carried out to overlay cladding (thickness 0.8mm) surface, respectively hardness determination is carried out to the product that embodiment one, embodiment two and embodiment three obtain, the hardness number scope of the product that embodiment one provides is HRC37 ~ 50, the hardness number scope of the product that embodiment two provides is HRC40 ~ 45, and the hardness number scope of the product that embodiment three provides is HRC38 ~ 47.
Embodiments provide the welding method that a kind of Si Tailite of employing alloy carries out built-up welding, the method adopts preheating to built-up welding workpiece, preheating can reduce the cooling velocity of commissure, the built-up welding workpiece of postwelding is cooled slowly, reduce the degree of hardening of weld dimensions, improve the crack resistance of welding point, prevent product from producing weld crack, particularly cold crack, preheating simultaneously can suppress the increase of surfacing hardness, the hardness of overlay cladding is controlled in the scope suitable with the hardness of built-up welding workpiece, make the product obtained can have longer service life, in addition, preheating can make the bulk temperature of built-up welding workpiece even, avoid the joint internal force caused because being heated inequality different, and then cause the internal stress of postwelding joint excessive and form the defect of crackle or cracking, simultaneously preheating can more effective guarantee weld interpass temperature, reduce the temperature difference between welding region and welded piece largely, reduce the ess-strain speed of welding point, thus reduce the occurrence probability of welding cold cracking, simultaneously, by controlling heat treated temperature and ensureing that heat treated temperature-rise period is steady, thus inhibit the formation of coarse grain, the seam organization obtained is more even, overlay cladding is made to have the hardness suitable with built-up welding workpiece itself and intensity, overlay cladding is avoided to crack or embrittlement.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. adopt Si Tailite alloy to carry out a welding method for built-up welding, it is characterized in that, described method comprises:
Carry out preheating to built-up welding workpiece, preheat temperature is 350 DEG C-400 DEG C, carries out first time insulation after described built-up welding workpiece reaches preheat temperature;
Welding wire and GTAW is adopted to carry out built-up welding to the described built-up welding workpiece after first time insulation, described welding wire is made to form overlay cladding on described built-up welding workpiece, ensure that when built-up welding the temperature of described built-up welding workpiece is 200 DEG C-300 DEG C, described welding wire is Si Tailite alloy, and the composition of described welding wire comprises: carbon, chromium, tungsten, silicon, manganese, iron, nickel and cobalt, the weight portion of carbon is 0.9-1.4 part, the weight portion of chromium is 26.0-32.0 part, the weight portion of tungsten is 3.0-6.0 part, weight portion≤2.0 part of silicon, weight portion≤1.0 part of manganese, weight portion≤3.0 part of iron, weight portion≤3.0 part of nickel, surplus is cobalt, weight portion summation≤0.5 part of other impurity,
Heat-treat described built-up welding workpiece, described heat treated initial temperature is 200 DEG C-300 DEG C, and second time insulation is carried out in described heat treatment after being warming up to 850 DEG C-870 DEG C by described initial temperature with the speed of 80 DEG C/h;
Cool described built-up welding workpiece.
2. welding method according to claim 1, is characterized in that, when the thickness of described built-up welding workpiece is less than or equal to 25mm, the time of described first time insulation is 0.5h-1h.
3. welding method according to claim 2, is characterized in that, when the thickness of described built-up welding workpiece is greater than 25mm, the thickness of described built-up welding workpiece often increases the time lengthening 0.5h of first time insulation described in 25mm on the basis of 25mm.
4. welding method according to claim 1, is characterized in that, when adopting GTAW to carry out built-up welding, protective gas is argon gas, and the purity of argon gas is 99.99%, and the stem elongation degree of tungsten electrode is 5mm-8mm.
5. method according to claim 1, is characterized in that, the welding current of described handwork tungsten electrode argon arc is 160A-180A, and speed of welding is 180mm/min-200mm/min.
6. welding method according to claim 1, is characterized in that, when adopting described GTAW to carry out built-up welding, takes multilayer multiple tracks and coordinates the welding manner of backstep.
7. welding method according to claim 6, is characterized in that, the torch swinging track of described GTAW is two-dimensional helical curve, and described in every one deck, the thickness of overlay cladding is no more than 1mm.
8. welding method according to claim 1, is characterized in that, when the thickness of described overlay cladding is less than or equal to 3mm, the time of described second time insulation is 1h-1.5h.
9. welding method according to claim 8, is characterized in that, when the thickness of described overlay cladding is greater than 3mm, the thickness of described overlay cladding often increases the time of second time insulation described in 3mm for extending 0.5h on the basis of 3mm.
10. welding method according to claim 8 or claim 9, is characterized in that, when the thickness of described built-up welding workpiece is greater than 25mm, the thickness of described built-up welding workpiece often increases the time lengthening 0.5h of second time insulation described in 25mm on the basis of 25mm.
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| CN108907418A (en) * | 2018-07-20 | 2018-11-30 | 四川汇源钢建装配建筑有限公司 | A kind of broad gap welding method and weldment |
| CN109623095A (en) * | 2019-01-30 | 2019-04-16 | 烟台蓝鲸增材有限公司 | A kind of isothermal welding bead method for high hard material soldering |
| CN109702834A (en) * | 2017-10-25 | 2019-05-03 | 肯纳金属公司 | Cobalt-base alloys for wood cutting application |
| CN110695632A (en) * | 2019-10-10 | 2020-01-17 | 内蒙古第一机械集团股份有限公司 | Wear-resistant driving wheel gear ring and preparation method thereof |
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| CN114226908A (en) * | 2021-12-14 | 2022-03-25 | 东方电气集团东方汽轮机有限公司 | Welding method for dissimilar stellite trace alloy elements |
| CN115213526A (en) * | 2022-06-23 | 2022-10-21 | 东方电气(广州)重型机器有限公司 | Method for overlaying wear-resistant layer on stainless steel workpiece |
| CN115365618A (en) * | 2022-09-29 | 2022-11-22 | 中国航发动力股份有限公司 | Manual argon arc welding method for overlaying Co60Cr30W5 alloy at tail part of flame tube |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB907355A (en) * | 1958-06-13 | 1962-10-03 | Thompson Ramo Wooldridge Inc | Improvements in or relating to methods of facing metals |
| CN1038609A (en) * | 1989-05-12 | 1990-01-10 | 冶金工业部钢铁研究总院 | Alloy for surfacing |
| CN102941394A (en) * | 2012-11-15 | 2013-02-27 | 武汉船用机械有限责任公司 | Method for overlaying welding of duplex stainless steel |
| CN102974917A (en) * | 2012-11-09 | 2013-03-20 | 哈尔滨汽轮机厂有限责任公司 | Method of gas turbine combustion chamber stellite alloy bead weld |
| CN103921013A (en) * | 2014-05-07 | 2014-07-16 | 四川华都核设备制造有限公司 | Cobalt-base alloy welding wire, hook claw using welding wire, connection rod and surfacing method |
| CN104404186A (en) * | 2014-11-24 | 2015-03-11 | 武汉钢铁(集团)公司 | Manufacturing method for functionally gradient material capable of reinforcing tuyere |
-
2015
- 2015-07-31 CN CN201510462612.7A patent/CN105171186A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB907355A (en) * | 1958-06-13 | 1962-10-03 | Thompson Ramo Wooldridge Inc | Improvements in or relating to methods of facing metals |
| CN1038609A (en) * | 1989-05-12 | 1990-01-10 | 冶金工业部钢铁研究总院 | Alloy for surfacing |
| CN102974917A (en) * | 2012-11-09 | 2013-03-20 | 哈尔滨汽轮机厂有限责任公司 | Method of gas turbine combustion chamber stellite alloy bead weld |
| CN102941394A (en) * | 2012-11-15 | 2013-02-27 | 武汉船用机械有限责任公司 | Method for overlaying welding of duplex stainless steel |
| CN103921013A (en) * | 2014-05-07 | 2014-07-16 | 四川华都核设备制造有限公司 | Cobalt-base alloy welding wire, hook claw using welding wire, connection rod and surfacing method |
| CN104404186A (en) * | 2014-11-24 | 2015-03-11 | 武汉钢铁(集团)公司 | Manufacturing method for functionally gradient material capable of reinforcing tuyere |
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|---|---|---|---|---|
| EP3608042A4 (en) * | 2017-03-27 | 2020-08-12 | Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | Method and system for manufacturing laminated shaped product |
| US11273511B2 (en) | 2017-03-27 | 2022-03-15 | Kobe Steel, Ltd. | Method and system for manufacturing laminated shaped product |
| CN106975830B (en) * | 2017-05-23 | 2019-07-23 | 东方电气集团东方汽轮机有限公司 | A kind of valve disc multiple location plasma spray stellite process |
| CN106975830A (en) * | 2017-05-23 | 2017-07-25 | 东方电气集团东方汽轮机有限公司 | A kind of valve disc multiple location plasma spray stellite process |
| CN107344271B (en) * | 2017-08-19 | 2019-12-31 | 安徽鼎恒再制造产业技术研究院有限公司 | Continuous casting rod for hot-pressing die and hot-extrusion die build-up welding |
| CN107344271A (en) * | 2017-08-19 | 2017-11-14 | 安徽鼎恒再制造产业技术研究院有限公司 | A kind of hot-die, hot extruding die built-up welding continuous casting casting rod and its welding procedure |
| CN109702834A (en) * | 2017-10-25 | 2019-05-03 | 肯纳金属公司 | Cobalt-base alloys for wood cutting application |
| CN108907418A (en) * | 2018-07-20 | 2018-11-30 | 四川汇源钢建装配建筑有限公司 | A kind of broad gap welding method and weldment |
| CN108705186A (en) * | 2018-07-20 | 2018-10-26 | 四川汇源钢建装配建筑有限公司 | A kind of method and weldment of 1.6mm welding wires welding broad gap |
| CN109623095A (en) * | 2019-01-30 | 2019-04-16 | 烟台蓝鲸增材有限公司 | A kind of isothermal welding bead method for high hard material soldering |
| CN109623095B (en) * | 2019-01-30 | 2021-02-02 | 烟台蓝鲸增材有限公司 | Isothermal welding bead method for high-hardness material repair welding |
| CN110695632A (en) * | 2019-10-10 | 2020-01-17 | 内蒙古第一机械集团股份有限公司 | Wear-resistant driving wheel gear ring and preparation method thereof |
| CN114226908A (en) * | 2021-12-14 | 2022-03-25 | 东方电气集团东方汽轮机有限公司 | Welding method for dissimilar stellite trace alloy elements |
| CN115213526A (en) * | 2022-06-23 | 2022-10-21 | 东方电气(广州)重型机器有限公司 | Method for overlaying wear-resistant layer on stainless steel workpiece |
| CN115365618A (en) * | 2022-09-29 | 2022-11-22 | 中国航发动力股份有限公司 | Manual argon arc welding method for overlaying Co60Cr30W5 alloy at tail part of flame tube |
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