CN108465976A - A kind of crack resistence stainless steel welding stick and preparation method thereof - Google Patents

A kind of crack resistence stainless steel welding stick and preparation method thereof Download PDF

Info

Publication number
CN108465976A
CN108465976A CN201810319142.2A CN201810319142A CN108465976A CN 108465976 A CN108465976 A CN 108465976A CN 201810319142 A CN201810319142 A CN 201810319142A CN 108465976 A CN108465976 A CN 108465976A
Authority
CN
China
Prior art keywords
stainless steel
powder
crack resistence
medicine core
steel welding
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.)
Pending
Application number
CN201810319142.2A
Other languages
Chinese (zh)
Inventor
蒋红军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DANYANG HUALONG SUPERIOR STEEL Co Ltd
Original Assignee
DANYANG HUALONG SUPERIOR STEEL Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by DANYANG HUALONG SUPERIOR STEEL Co Ltd filed Critical DANYANG HUALONG SUPERIOR STEEL Co Ltd
Priority to CN201810319142.2A priority Critical patent/CN108465976A/en
Publication of CN108465976A publication Critical patent/CN108465976A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • B23K35/0266—Rods, electrodes, wires flux-cored
    • 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
    • B23K35/36—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
    • B23K35/3601—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest with inorganic compounds as principal constituents
    • B23K35/3602—Carbonates, basic oxides or hydroxides
    • 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
    • B23K35/36—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
    • B23K35/368—Selection of non-metallic compositions of core materials either alone or conjoint with selection of soldering or welding materials
    • 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
    • B23K35/406—Filled tubular wire or rods

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Nonmetallic Welding Materials (AREA)

Abstract

The invention belongs to field of welding material, are related to stainless steel welding stick material, and in particular to a kind of crack resistence stainless steel welding stick and preparation method thereof.Welding wire is made of crust and medicine core, and medicine core is made of the following components by mass percentage：SiO25 10%, 38 parts of rare earth fluoride, attapulgite clay 1 5%, calcium oxalate 3 8%, alloyed powder 10 15%, crome metal 5 8%, ferromanganese 5 10%, molybdenum powder 1 3%, potassium carbonate 3 5%, alkali metal oxide 5 12%, titanate 2 9%, surplus are iron, and the sum of above constituent mass percentage is 100%.A kind of crack resistence stainless steel welding stick and preparation method thereof of the present invention, the preferably mechanical properties, and crack resistence significant effect such as welding wire welding technological properties is excellent, good toughness, intensity height；Arc stability, small, the de- slag that splashes be easy, shape it is careful it is beautiful, can all-position welding；Simple, at low cost, efficient, environment friendly and pollution-free, the achievable large-scale production of preparation method.

Description

A kind of crack resistence stainless steel welding stick and preparation method thereof
Technical field
The invention belongs to field of welding material, are related to stainless steel welding stick material, and in particular to a kind of crack resistence stainless steel weldering Silk and preparation method thereof.
Background technology
With the development of modern industrial technology, stainless steel is widely answered with its excellent mechanical performance, corrosion resistance With, however its Welding Problems also more shows and protrudes.During actual welding, the obdurability of welding point and the Strengthening and Toughening water of base material Flat there are larger differences, this allows for product, and the production cost increases, are easy to cause safety accident.Carrying out roll, mill, mill When the large special wear resistant parts Bead weld repair such as roller, since base material itself is mostly medium high carbon alloy steel, solderability is poor, welds Journey is susceptible to crackle, and built-up welding layer thickness is restricted significantly, easily occurs phenomena such as peeling off, chip off-falling using process.So that big The service life and number of type special wear resistant parts substantially reduce.Compared to other interconnection techniques, welding technique is in engineering production It is most widely used, welding structure is generated with the development of welding technique, has been obtained since the 20's of 20th century more next More it is widely applied.According to statistics, China's steel for welded structures accounts for 50% of output of steel or so, in this ratio of industrially developed country Example higher.However fracture accident, a large amount of statistics show that engineering structure failure has 80% or more to welding structure frequent occurrence It is caused by weld crack, it is due to crackle destruction that the welded unit for bearing cyclic loading, which has 90% or more failure,.
Stainless steel welding stick can be divided into straight-chromiun stainless steel welding wire and chromium nickel stainless steel welding wire.Straight-chromiun stainless steel has centainly anti-corrosion （Oxidizing acid, organic acid, cavitation erosion）Heat-resisting and corrosion resisting property.It is typically chosen as the equipment and materials such as power station, chemical industry, oil.But chromium Solderability is poor under normal circumstances for stainless steel, it should be noted that welding procedure, heat treatment condition and the suitable welding rod of selection.Chromium nickel is not The steel welding wire that becomes rusty has good corrosion resistance and inoxidizability, is widely used in chemical industry, chemical fertilizer, oil, medical machinery manufacture.It is anti- Intercrystalline corrosion is only generated due to heating, welding current should not be too big.Since the resistance value of the core wire of stainless steel welding stick compares carbon steel Greatly, thermal conductivity is poorer than carbon steel, and the surface tension of stainless steel molten drop is big, thus its molten drop is short with bulky grain in the welding process It passes by based on crossing, so as the extension of weld interval and temperature increase, it is not ideal enough just to will produce welding technological properties, weld seam Mechanical performance reduce.Currently, domestic stainless steel welding stick always exists for many years, cored arc is unstable, postwelding internal stress is big, Easy to crack and easy formation arc crater, the problems such as technology stability is poor, seriously affect weldment quality.
Invention content
To solve the above problems, a kind of crack resistence stainless steel welding stick of present invention offer and preparation method thereof, welding wire welding Processing performance is excellent, intensity is high, arc stability, splashing is small, postwelding internal stress is small, not easy to crack and be not easy to form arc crater.
The technical problem to be solved by the invention is to provide a kind of transition zone built-up welding stainless steel open arc flux-cored wire, tools
There is self-shield characteristic, you can directly welding is not required to solder flux and gas shield, can open arc welding, energy indirect observation molten bath and weldering Seam,
Facilitate adjusting welding procedure.
To achieve the goals above, the present invention adopts the following technical scheme that：
A kind of crack resistence stainless steel welding stick, is made of, medicine core is made of the following components by mass percentage crust and medicine core： SiO25-10%, 3-8 parts of rare earth fluoride, attapulgite clay 1-5%, calcium oxalate 3-8%, alloyed powder 10-15%, crome metal 5-8%, manganese Iron 5-10%, molybdenum powder 1-3%, potassium carbonate 3-5%, alkali metal oxide 5-12%, titanate 2-9%, surplus are iron, above group of sub-prime It is 100% to measure the sum of percentage.
Further, skin material described above is 304 stainless steel belts.
Further, the mass ratio that flux cored filler rate described above accounts for welding wire is 28%-30%.
Further, alloy described above is by magnesium 30-35%, aluminium 15-20%, titanium 40-45%, boron 5-10% compositions.
Further, the content of manganese is 55-65% in ferromanganese described above.
Further, alkali metal oxide described above is by lithia, sodium oxide molybdena and potassium oxide in mass ratio 1:1-2:1-3 Composition.
Further, titanate described above is rutile.
Further, the preparation method of a kind of crack resistence stainless steel welding stick described above, specifically comprises the following steps：
（1）Weigh SiO respectively by mass percentage25-10%, 3-8 parts of rare earth fluoride, attapulgite clay 1-5%, calcium oxalate 3- 8%, alloyed powder 10-15%, crome metal 5-8%, ferromanganese 5-10%, molybdenum powder 1-3%, potassium carbonate 3-5%, alkali metal oxide 5-12%, titanium Hydrochlorate 2-9%, surplus are iron, and the sum of above constituent mass percentage is 100%；
（2）The SiO that step 1 is weighed2, rare earth fluoride, attapulgite clay, potassium carbonate, alkali metal oxide, titanate be added water Glass binder is uniformly mixed, and is then placed in heating furnace and is sintered, is sieved after pulverizing, and the mixing of granularity 80-100 mesh is screened Powder；
（3）Alloyed powder, crome metal, ferromanganese, molybdenum powder, iron powder and the step that step 1 is claimed（2）Mixed powder obtained fully stirs It mixes, 250-300 DEG C of drying 2-3h in drying oven is put into after mixing, obtains medicine core powder；
（4）304 stainless steel belts are placed on the putting on band machine of flux-cored wire forming machine, by molding machine by 304 stainless steel steel Band is rolled into U-type groove, and step is then added into U-type groove（3）Obtained medicine core powder controls the matter of the filling rate of medicine core powder U-type groove then is rolled closure by molding machine, and be drawn to 1 .5-2.0mm, stretched than being 28%-30% by amount, disk at Disk packs and can be obtained flux-cored wire.
Further, water glass of binder described above is potassium type waterglass, Baume degrees 34.0-35.0, additive amount For the 20-22% of medicine core powder total weight.
Further, the temperature of sintering described above is 580-650 DEG C, time 5-6h.
Beneficial effects of the present invention：
（1）A kind of crack resistence stainless steel welding stick of the present invention has preferable synergistic effect in medicine core between various substances, can be with Effectively inhibit the behavior that hydrogen escapes in molten bath, to improve the sensibility of weld blowhole.
（2）A kind of crack resistence stainless steel welding stick of the present invention, each composition consumption proportion in medicine core is reasonable, is assisted between each component Same-action effect is good, especially adds suitable rare earth and alloyed powder, and flux-cored wire has good toughness, intensity for welding metal High preferably mechanical property, and crack resistence significant effect.
（3）Material progress high temperature drying is first removed water, improved by a kind of crack resistence stainless steel welding stick preparation method of the present invention The drying temperature of welding rod extends the soaking time of high temperature, selects the potassium type waterglass of Baume degrees, is also important technique guarantee, Rubescent coating can effectively be inhibited, cracking, improve technology stability.
（4）A kind of crack resistence stainless steel welding stick and preparation method thereof of the present invention, welding wire welding technological properties is excellent, electric arc Stablize, small, the de- slag that splashes is easy, shape it is careful it is beautiful, can all-position welding；Preparation method is simple, at low cost, efficient, ring Protect pollution-free, achievable large-scale production.
Specific implementation mode
Presently in connection with embodiment, the present invention is described in further detail.
Embodiment 1
A kind of crack resistence stainless steel welding stick, is made of, medicine core is by mass percentage by with the following group 304 stainless steel belts and medicine core Part composition：SiO28%, 5 parts of rare earth fluoride, attapulgite clay 3%, calcium oxalate 5%, by magnesium 30%, aluminium 20%, titanium 40%, 10% group of boron At alloyed powder 10%, crome metal 5%, manganese content be 55% ferromanganese 8%, molybdenum powder 2%, potassium carbonate 4%, by lithia, sodium oxide molybdena and Potassium oxide in mass ratio 1:1:The alkali metal oxide 8% of 3 compositions, rutile 6%, surplus are iron, the above constituent mass percentage The sum of be 100%.
A kind of preparation method of crack resistence stainless steel welding stick, specifically comprises the following steps：
（1）Weigh SiO respectively by mass percentage28%, 5 parts of rare earth fluoride, attapulgite clay 3%, calcium oxalate 5%, alloyed powder 10%, crome metal 5%, ferromanganese 8%, molybdenum powder 2%, potassium carbonate 4%, alkali metal oxide 8%, rutile 6%, surplus are iron, the above component The sum of mass percent is 100%；
（2）The SiO that step 1 is weighed2, rare earth fluoride, attapulgite clay, potassium carbonate, alkali metal oxide, rutile be added water Glass binder is uniformly mixed, and is then placed in heating furnace and is sintered, is sieved after pulverizing, and the mixed powder of 80 mesh of granularity is screened；
（3）Alloyed powder, crome metal, ferromanganese, molybdenum powder, iron powder and the step that step 1 is claimed（2）Mixed powder obtained fully stirs It mixes, 250 DEG C of drying 3h in drying oven is put into after mixing, obtain medicine core powder；
（4）304 stainless steel belts are placed on the putting on band machine of flux-cored wire forming machine, by molding machine by 304 stainless steel steel Band is rolled into U-type groove, and step is then added into U-type groove（3）Obtained medicine core powder controls the matter of the filling rate of medicine core powder Amount ratio is 28%, then U-type groove is rolled closure by molding machine, and is drawn to 2.0mm, is stretched, and disk is at disk, sealing packet Dress can be obtained flux-cored wire.
The water glass of binder is potassium type waterglass, and Baume degrees 34.0, additive amount is medicine core powder total weight 20%.
Embodiment 2
A kind of crack resistence stainless steel welding stick, is made of, medicine core is by mass percentage by with the following group 304 stainless steel belts and medicine core Part composition：SiO25%, 3 parts of rare earth fluoride, attapulgite clay 1%, calcium oxalate 3%, by magnesium 35%, aluminium 15%, titanium 45%, boron 5% forms Alloyed powder 12%, crome metal 5%, manganese content be 60% ferromanganese 5%, molybdenum powder 1%, potassium carbonate 3%, by lithia, sodium oxide molybdena and oxygen Change potassium in mass ratio 1:2:1 composition alkali metal oxide 5%, rutile 2%, surplus be iron, the above constituent mass percentage it Be 100%.
A kind of preparation method of crack resistence stainless steel welding stick, specifically comprises the following steps：
（1）Weigh SiO respectively by mass percentage25%, 3 parts of rare earth fluoride, attapulgite clay 1%, calcium oxalate 3%, alloyed powder 12%, crome metal 5%, ferromanganese 5%, molybdenum powder 1%, potassium carbonate 3%, alkali metal oxide 5%, rutile 2%, surplus are iron, the above component The sum of mass percent is 100%；
（2）The SiO that step 1 is weighed2, rare earth fluoride, attapulgite clay, potassium carbonate, alkali metal oxide, rutile be added water Glass binder is uniformly mixed, and is then placed in heating furnace and is sintered, is sieved after pulverizing, and the mixed powder of 90 mesh of granularity is screened；
（3）Alloyed powder, crome metal, ferromanganese, molybdenum powder, iron powder and the step that step 1 is claimed（2）Mixed powder obtained fully stirs It mixes, 280 DEG C of drying 2.5h in drying oven is put into after mixing, obtain medicine core powder；
（4）304 stainless steel belts are placed on the putting on band machine of flux-cored wire forming machine, by molding machine by 304 stainless steel steel Band is rolled into U-type groove, and step is then added into U-type groove（3）Obtained medicine core powder controls the matter of the filling rate of medicine core powder Amount ratio is 29%, then U-type groove is rolled closure by molding machine, and is drawn to 1 .8mm, is stretched, and disk is at disk, sealing Packaging can be obtained flux-cored wire.
The water glass of binder is potassium type waterglass, and Baume degrees 34.0, additive amount is medicine core powder total weight 21%.
Embodiment 3
A kind of crack resistence stainless steel welding stick, is made of, medicine core is by mass percentage by with the following group 304 stainless steel belts and medicine core Part composition：SiO210%, 8 parts of rare earth fluoride, attapulgite clay 5%, calcium oxalate 8%, by magnesium 32%, aluminium 18%, titanium 45%, 5% group of boron At alloyed powder 15%, crome metal 8%, manganese content be 65% ferromanganese 10%, molybdenum powder 3%, potassium carbonate 5%, by lithia, sodium oxide molybdena and Potassium oxide in mass ratio 1:2:The alkali metal oxide 12% of 3 compositions, rutile 9%, surplus are iron, the above constituent mass percentage Than the sum of be 100%.
A kind of preparation method of crack resistence stainless steel welding stick, specifically comprises the following steps：
（1）Weigh SiO respectively by mass percentage210%, 8 parts of rare earth fluoride, attapulgite clay 5%, calcium oxalate 8%, alloyed powder 15%, crome metal 8%, ferromanganese 10%, molybdenum powder 3%, potassium carbonate 5%, alkali metal oxide 12%, rutile 9%, surplus be iron, above group It is 100% to divide the sum of mass percent；
（2）The SiO that step 1 is weighed2, rare earth fluoride, attapulgite clay, potassium carbonate, alkali metal oxide, rutile be added water Glass binder is uniformly mixed, and is then placed in heating furnace and is sintered, is sieved after pulverizing, and the mixed powder of 100 mesh of granularity is screened；
（3）Alloyed powder, crome metal, ferromanganese, molybdenum powder, iron powder and the step that step 1 is claimed（2）Mixed powder obtained fully stirs It mixes, 300 DEG C of drying 2h in drying oven is put into after mixing, obtain medicine core powder；
（4）304 stainless steel belts are placed on the putting on band machine of flux-cored wire forming machine, by molding machine by 304 stainless steel steel Band is rolled into U-type groove, and step is then added into U-type groove（3）Obtained medicine core powder controls the matter of the filling rate of medicine core powder Amount ratio is 30%, then U-type groove is rolled closure by molding machine, and is drawn to 1 .5mm, is stretched, and disk is at disk, sealing Packaging can be obtained flux-cored wire.
The water glass of binder is potassium type waterglass, and Baume degrees 35.0, additive amount is medicine core powder total weight 22%.
Embodiment 4
A kind of crack resistence stainless steel welding stick, is made of, medicine core is by mass percentage by with the following group 304 stainless steel belts and medicine core Part composition：SiO28%, 5 parts of rare earth fluoride, attapulgite clay 5%, calcium oxalate 8%, by magnesium 30%, aluminium 20%, titanium 42%, boron 8% forms Alloyed powder 12%, crome metal 5%, manganese content be 60% ferromanganese 10%, molybdenum powder 1%, potassium carbonate 3%, by lithia, sodium oxide molybdena and oxygen Change potassium in mass ratio 1: 2:1 composition alkali metal oxide 5%, rutile 9%, surplus be iron, the above constituent mass percentage it Be 100%.
A kind of preparation method of crack resistence stainless steel welding stick, specifically comprises the following steps：
（1）Weigh SiO respectively by mass percentage28%, 5 parts of rare earth fluoride, attapulgite clay 5%, calcium oxalate 8%, alloyed powder 12%, crome metal 5%, ferromanganese 10%, molybdenum powder 1%, potassium carbonate 3%, alkali metal oxide 5%, rutile 9%, surplus be iron, above group It is 100% to divide the sum of mass percent；
（2）The SiO that step 1 is weighed2, rare earth fluoride, attapulgite clay, potassium carbonate, alkali metal oxide, rutile be added water Glass binder is uniformly mixed, and is then placed in heating furnace and is sintered, is sieved after pulverizing, and the mixed powder of 95 mesh of granularity is screened；
（3）Alloyed powder, crome metal, ferromanganese, molybdenum powder, iron powder and the step that step 1 is claimed（2）Mixed powder obtained fully stirs It mixes, 280 DEG C of drying 2h in drying oven is put into after mixing, obtain medicine core powder；
（4）304 stainless steel belts are placed on the putting on band machine of flux-cored wire forming machine, by molding machine by 304 stainless steel steel Band is rolled into U-type groove, and step is then added into U-type groove（3）Obtained medicine core powder controls the matter of the filling rate of medicine core powder Amount ratio is 29%, then U-type groove is rolled closure by molding machine, and is drawn to 1 .8mm, is stretched, and disk is at disk, sealing Packaging can be obtained flux-cored wire.
The water glass of binder is potassium type waterglass, and Baume degrees 34.0, additive amount is medicine core powder total weight 20%.
Comparative example 1 is compared with embodiment 1
Comparative example 1
A kind of crack resistence stainless steel welding stick, is made of, medicine core is by mass percentage by with the following group 304 stainless steel belts and medicine core Part composition：SiO28%, attapulgite clay 3%, calcium oxalate 5%, by magnesium 30%, aluminium 20%, titanium 40%, the alloyed powder that boron 10% forms 10%, crome metal 5%, manganese content be 55% ferromanganese 8%, molybdenum powder 2%, potassium carbonate 4%, by lithia, sodium oxide molybdena and potassium oxide press matter Measure ratio 1:1:The alkali metal oxide 8% of 3 compositions, rutile 6%, surplus are iron, and the sum of above constituent mass percentage is 100%.
A kind of preparation method of crack resistence stainless steel welding stick, specifically comprises the following steps：
（1）Weigh SiO respectively by mass percentage28%, attapulgite clay 3%, calcium oxalate 5%, alloyed powder 10%, crome metal 5%, Ferromanganese 8%, molybdenum powder 2%, potassium carbonate 4%, alkali metal oxide 8%, rutile 6%, surplus be iron, the above constituent mass percentage it Be 100%；
（2）The SiO that step 1 is weighed2, attapulgite clay, potassium carbonate, alkali metal oxide, rutile be added waterglass bond Agent is uniformly mixed, and is then placed in heating furnace and is sintered, is sieved after pulverizing, and the mixed powder of 80 mesh of granularity is screened；
（3）Alloyed powder, crome metal, ferromanganese, molybdenum powder, iron powder and the step that step 1 is claimed（2）Mixed powder obtained fully stirs It mixes, 250 DEG C of drying 3h in drying oven is put into after mixing, obtain medicine core powder；
（4）304 stainless steel belts are placed on the putting on band machine of flux-cored wire forming machine, by molding machine by 304 stainless steel steel Band is rolled into U-type groove, and step is then added into U-type groove（3）Obtained medicine core powder controls the matter of the filling rate of medicine core powder Amount ratio is 28%, then U-type groove is rolled closure by molding machine, and is drawn to 2.0mm, is stretched, and disk is at disk, sealing packet Dress can be obtained flux-cored wire.
The water glass of binder is potassium type waterglass, and Baume degrees 34.0, additive amount is medicine core powder total weight 20%.
Comparative example 2 is compared with embodiment 1
Comparative example 2
A kind of crack resistence stainless steel welding stick, is made of, medicine core is by mass percentage by with the following group 304 stainless steel belts and medicine core Part composition：SiO28%, 5 parts of rare earth fluoride, attapulgite clay 3%, calcium oxalate 5%, crome metal 5%, the ferromanganese that manganese content is 55% 8%, molybdenum powder 2%, potassium carbonate 4%, by lithia, sodium oxide molybdena and potassium oxide in mass ratio 1:1:The alkali metal oxide 8% of 3 compositions, Rutile 6%, surplus are iron, and the sum of above constituent mass percentage is 100%.
A kind of preparation method of crack resistence stainless steel welding stick, specifically comprises the following steps：
（1）Weigh SiO respectively by mass percentage28%, 5 parts of rare earth fluoride, attapulgite clay 3%, calcium oxalate 5%, crome metal 5%, ferromanganese 8%, molybdenum powder 2%, potassium carbonate 4%, alkali metal oxide 8%, rutile 6%, surplus are iron, the above constituent mass percentage The sum of be 100%；
（2）The SiO that step 1 is weighed2, rare earth fluoride, attapulgite clay, potassium carbonate, alkali metal oxide, rutile be added water Glass binder is uniformly mixed, and is then placed in heating furnace and is sintered, is sieved after pulverizing, and the mixed powder of 80 mesh of granularity is screened；
（3）Alloyed powder, crome metal, ferromanganese, molybdenum powder, iron powder and the step that step 1 is claimed（2）Mixed powder obtained fully stirs It mixes, 250 DEG C of drying 3h in drying oven is put into after mixing, obtain medicine core powder；
（4）304 stainless steel belts are placed on the putting on band machine of flux-cored wire forming machine, by molding machine by 304 stainless steel steel Band is rolled into U-type groove, and step is then added into U-type groove（3）Obtained medicine core powder controls the matter of the filling rate of medicine core powder Amount ratio is 28%, then U-type groove is rolled closure by molding machine, and is drawn to 2.0mm, is stretched, and disk is at disk, sealing packet Dress can be obtained flux-cored wire.
The water glass of binder is potassium type waterglass, and Baume degrees 34.0, additive amount is medicine core powder total weight 20%.
Comparative example 3 is compared with embodiment 1
Comparative example 3
A kind of crack resistence stainless steel welding stick, is made of, medicine core is by mass percentage by with the following group 304 stainless steel belts and medicine core Part composition：SiO28%, 5 parts of rare earth fluoride, attapulgite clay 3%, calcium oxalate 5%, by magnesium 30%, aluminium 20%, titanium 40%, 10% group of boron At alloyed powder 10%, crome metal 5%, manganese content be 55% ferromanganese 8%, molybdenum powder 2%, potassium carbonate 4%, by lithia, sodium oxide molybdena and Potassium oxide in mass ratio 1:1:The alkali metal oxide 8% of 3 compositions, rutile 6%, surplus are iron, the above constituent mass percentage The sum of be 100%.
A kind of preparation method of crack resistence stainless steel welding stick, specifically comprises the following steps：
（1）Weigh SiO respectively by mass percentage28%, 5 parts of rare earth fluoride, attapulgite clay 3%, calcium oxalate 5%, alloyed powder 10%, crome metal 5%, ferromanganese 8%, molybdenum powder 2%, potassium carbonate 4%, alkali metal oxide 8%, rutile 6%, surplus are iron, the above component The sum of mass percent is 100%；
（2）The SiO that step 1 is weighed2, rare earth fluoride, attapulgite clay, potassium carbonate, alkali metal oxide, rutile be added water Glass binder is uniformly mixed, and is then placed in heating furnace and is sintered, is sieved after pulverizing, and the mixed powder of 80 mesh of granularity is screened；
（3）Alloyed powder, crome metal, ferromanganese, molybdenum powder, iron powder and the step that step 1 is claimed（2）Mixed powder obtained fully stirs It mixes, obtains medicine core powder；
（4）304 stainless steel belts are placed on the putting on band machine of flux-cored wire forming machine, by molding machine by 304 stainless steel steel Band is rolled into U-type groove, and step is then added into U-type groove（3）Obtained medicine core powder controls the matter of the filling rate of medicine core powder Amount ratio is 28%, then U-type groove is rolled closure by molding machine, and is drawn to 2.0mm, is stretched, and disk is at disk, sealing packet Dress can be obtained flux-cored wire.
The water glass of binder is potassium type waterglass, and Baume degrees 34.0, additive amount is medicine core powder total weight 20%.
Implement performance test：
Deposited metal mechanical property is shown in Table 1 (all experiments are executed according to GB/T983-1995).
Table 1
Stainless steel pitting corrosion test
First, sample is heat-treated, heat treatment temperature is 650 DEG C, time 2h, then, by the sample through Overheating Treatment It is put into the analytically pure FeCl of 120g36H2O is dissolved in the solution of 1000ml deionized waters preparation, is kept for 23 DEG C, 72h.It is rotten It is 0.02,0.04g/m2h to lose rate, and without spot corrosion.
The experimental results showed that, crack resistence stainless steel welding stick prepared by 1-4 of the embodiment of the present invention, welding usability is excellent above It is good, and the preferably mechanical property such as good toughness, intensity height, and crack resistence significant effect, can meet high requirement, comparative example by In the variation of different component and technique, lead to degradation.
It is enlightenment with above-mentioned desirable embodiment according to the present invention, through the above description, relevant staff is complete Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention Property range is not limited to the contents of the specification, it is necessary to determine its technical scope according to right.

Claims (10)

1. a kind of crack resistence stainless steel welding stick, it is characterised in that：Be made of crust and medicine core, medicine core by mass percentage by Following component composition：SiO25-10%, 3-8 parts of rare earth fluoride, attapulgite clay 1-5%, calcium oxalate 3-8%, alloyed powder 10-15%, Crome metal 5-8%, ferromanganese 5-10%, molybdenum powder 1-3%, potassium carbonate 3-5%, alkali metal oxide 5-12%, titanate 2-9%, surplus are Iron, the sum of above constituent mass percentage are 100%.
2. a kind of crack resistence stainless steel welding stick as described in claim 1, it is characterised in that：The skin material contains for carbon 304 stainless steel belts of the amount less than 0.04%, width of steel band 5-6mm, thickness 0.3-0.4 mm.
3. a kind of crack resistence stainless steel welding stick as described in claim 1, it is characterised in that：The flux cored filler rate accounts for welding wire Mass ratio be 28%-30%.
4. a kind of crack resistence stainless steel welding stick as described in claim 1, it is characterised in that：The alloy by magnesium 30-35%, Aluminium 15-20%, titanium 40-45%, boron 5-10% compositions.
5. a kind of crack resistence stainless steel welding stick as described in claim 1, it is characterised in that：The content of manganese is in the ferromanganese 55-65%。
6. a kind of crack resistence stainless steel welding stick as described in claim 1, it is characterised in that：The alkali metal oxide is by oxygen Change lithium, sodium oxide molybdena and potassium oxide in mass ratio 1:1-2:1-3 is formed.
7. a kind of crack resistence stainless steel welding stick as described in claim 1, it is characterised in that：The titanate is rutile.
8. a kind of preparation method of such as claim 1-7 any one of them crack resistence stainless steel welding sticks, it is characterised in that：Including Following steps：
（1）Weigh SiO respectively by mass percentage25-10%, 3-8 parts of rare earth fluoride, attapulgite clay 1-5%, calcium oxalate 3- 8%, alloyed powder 10-15%, crome metal 5-8%, ferromanganese 5-10%, molybdenum powder 1-3%, potassium carbonate 3-5%, alkali metal oxide 5-12%, titanium Hydrochlorate 2-9%, surplus are iron, and the sum of above constituent mass percentage is 100%；
（2）The SiO that step 1 is weighed2, rare earth fluoride, attapulgite clay, potassium carbonate, alkali metal oxide, titanate be added water Glass binder is uniformly mixed, and is then placed in heating furnace and is sintered, is sieved after pulverizing, and the mixing of granularity 80-100 mesh is screened Powder；
（3）Alloyed powder, crome metal, ferromanganese, molybdenum powder, iron powder and the step that step 1 is claimed（2）Mixed powder obtained fully stirs It mixes, 250-300 DEG C of drying 2-3h in drying oven is put into after mixing, obtains medicine core powder；
（4）304 stainless steel belts are placed on the putting on band machine of flux-cored wire forming machine, by molding machine by 304 stainless steel steel Band is rolled into U-type groove, and step is then added into U-type groove（3）Obtained medicine core powder controls the matter of the filling rate of medicine core powder Amount ratio is 28%-30%, then U-type groove is rolled closure by molding machine, and is drawn to 1.5-2.0mm, is stretched, disk is at circle Disk packs and can be obtained flux-cored wire.
9. a kind of preparation method of crack resistence stainless steel welding stick as claimed in claim 8, it is characterised in that：The binder Waterglass is potassium type waterglass, and Baume degrees 34.0-35.0, additive amount is the 20-22% of medicine core powder total weight.
10. a kind of preparation method of crack resistence stainless steel welding stick as claimed in claim 8, it is characterised in that：The sintering Temperature be 580-650 DEG C, time 5-6h.
CN201810319142.2A 2018-04-11 2018-04-11 A kind of crack resistence stainless steel welding stick and preparation method thereof Pending CN108465976A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810319142.2A CN108465976A (en) 2018-04-11 2018-04-11 A kind of crack resistence stainless steel welding stick and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810319142.2A CN108465976A (en) 2018-04-11 2018-04-11 A kind of crack resistence stainless steel welding stick and preparation method thereof

Publications (1)

Publication Number Publication Date
CN108465976A true CN108465976A (en) 2018-08-31

Family

ID=63263039

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810319142.2A Pending CN108465976A (en) 2018-04-11 2018-04-11 A kind of crack resistence stainless steel welding stick and preparation method thereof

Country Status (1)

Country Link
CN (1) CN108465976A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108788519A (en) * 2018-09-11 2018-11-13 江苏思迪彼特新材料科技有限公司 A kind of preparation process of high-strength stainless steel arc welding flux cored wire and its application
CN108941974A (en) * 2018-09-11 2018-12-07 江苏思迪彼特新材料科技有限公司 A kind of corrosion-resistant stainless steel arc welding flux cored wire and preparation method thereof
EP3858537A1 (en) * 2020-01-29 2021-08-04 Lincoln Global, Inc. Systems and methods for multi-wire submerged arc welding using a flux-cored wire electrode
CN115141024A (en) * 2022-05-06 2022-10-04 大连海恒纳米科技有限公司 Preparation method of material for preventing refractory concrete from cracking and material

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104741823A (en) * 2015-03-09 2015-07-01 西安理工大学 Self-shielded welding wire for 0Cr13Ni5Mo stainless steel and preparation method of self-shielded welding wire
CN106216887A (en) * 2016-08-18 2016-12-14 江苏锦阳不锈钢制品有限公司 A kind of stainless steel electrode coating
CN106271229A (en) * 2016-08-18 2017-01-04 江苏锦阳不锈钢制品有限公司 A kind of preparation method of high strength electrode
CN106670682A (en) * 2016-12-28 2017-05-17 北京工业大学 316 (L) stainless steel flux-cored wire used for thin plate welding

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104741823A (en) * 2015-03-09 2015-07-01 西安理工大学 Self-shielded welding wire for 0Cr13Ni5Mo stainless steel and preparation method of self-shielded welding wire
CN106216887A (en) * 2016-08-18 2016-12-14 江苏锦阳不锈钢制品有限公司 A kind of stainless steel electrode coating
CN106271229A (en) * 2016-08-18 2017-01-04 江苏锦阳不锈钢制品有限公司 A kind of preparation method of high strength electrode
CN106670682A (en) * 2016-12-28 2017-05-17 北京工业大学 316 (L) stainless steel flux-cored wire used for thin plate welding

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108788519A (en) * 2018-09-11 2018-11-13 江苏思迪彼特新材料科技有限公司 A kind of preparation process of high-strength stainless steel arc welding flux cored wire and its application
CN108941974A (en) * 2018-09-11 2018-12-07 江苏思迪彼特新材料科技有限公司 A kind of corrosion-resistant stainless steel arc welding flux cored wire and preparation method thereof
CN108788519B (en) * 2018-09-11 2020-11-06 江苏思迪彼特新材料科技有限公司 Preparation process and application of high-strength stainless steel electric arc welding flux-cored wire
EP3858537A1 (en) * 2020-01-29 2021-08-04 Lincoln Global, Inc. Systems and methods for multi-wire submerged arc welding using a flux-cored wire electrode
CN115141024A (en) * 2022-05-06 2022-10-04 大连海恒纳米科技有限公司 Preparation method of material for preventing refractory concrete from cracking and material

Similar Documents

Publication Publication Date Title
CN108465976A (en) A kind of crack resistence stainless steel welding stick and preparation method thereof
CN107442968B (en) Welding rod for welding nickel-based alloy or Ni9% steel and production method thereof
JP5207994B2 (en) Metal flux cored wire for Ar-CO2 mixed gas shielded arc welding
CN106346167B (en) A kind of martensite heat-resistant steel welding welding rod
JP4558780B2 (en) Flux-cored wire for submerged arc welding of low-temperature steel
CN107127471B (en) A kind of low-alloy chrome molybdenum heat resisting steel flux-cored wire and its application
CN102430876A (en) Nickel-based welding electrode for welding nickel-chromium-molybdenum alloy
CN104551453B (en) 80kg ultralow temperature high-strength steel welding electrode and preparation method thereof
CN109623192B (en) Stainless steel welding rod core wire with extremely low temperature rise, stainless steel welding rod, preparation and application
CN105772990A (en) Titanic-acid stainless steel welding electrode and manufacturing method thereof
CN102029482A (en) Gas-shielded overlaying flux cored soldering wire for repairing hot-forging mould
CN106808113A (en) Ultra supercritical material C supporting welding rod of B2 steel suitable for Long-term Service under High Temperature and preparation method thereof
CN108296667A (en) A kind of flux-cored wire and preparation method for Underwater Welding
CN108544128A (en) 25Cr2Ni4MoV steel alloys and the stainless steel welded gas shielded type flux-cored wires and preparation method thereof of G520
CN108526752A (en) One kind is paddled welding self-protection flux-cored wire under environment
CN110587178A (en) Self-protection flux-cored wire for welding aluminum and stainless steel and preparation method thereof
CN114227063B (en) Submerged arc welding material suitable for low-carbon high-manganese steel, preparation method, application and welding joint
CN114310035B (en) Flux-cored wire suitable for nickel-saving austenitic stainless steel backing welding and preparation method thereof
CN110153586B (en) Ultralow-hydrogen moisture-absorption-resistant welding electrode with seamless flux-cored wire as core wire and preparation method thereof
CN106181115B (en) Low spatter 9Ni steel nickel-based welding electrodes
CN112548400A (en) Coating and welding rod for welding nickel-chromium-iron alloy steel and preparation method thereof
CN112809244B (en) High-toughness high-efficiency welding rod
CN110877169B (en) Electrodeposition nickel-tungsten-rare earth surfacing electrode and preparation process thereof
JP4309172B2 (en) Low hydrogen coated arc welding rod for low alloy heat resistant steel
CN107984113A (en) Multiplewire submerged arc welding flux-cored wire

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20180831

RJ01 Rejection of invention patent application after publication