CN106378519B - A kind of iron-based cladding layer alloy powder material of high heat-intensity and cladding layer preparation method - Google Patents
A kind of iron-based cladding layer alloy powder material of high heat-intensity and cladding layer preparation method Download PDFInfo
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- CN106378519B CN106378519B CN201611022180.9A CN201611022180A CN106378519B CN 106378519 B CN106378519 B CN 106378519B CN 201611022180 A CN201611022180 A CN 201611022180A CN 106378519 B CN106378519 B CN 106378519B
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- 239000000843 powder Substances 0.000 title claims abstract description 148
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 79
- 238000005253 cladding Methods 0.000 title claims abstract description 78
- 239000000463 material Substances 0.000 title claims abstract description 55
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 34
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 20
- 239000000956 alloy Substances 0.000 title claims abstract description 20
- 238000002360 preparation method Methods 0.000 title abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 24
- 239000010959 steel Substances 0.000 claims abstract description 24
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 23
- 239000002994 raw material Substances 0.000 claims abstract description 19
- 238000005496 tempering Methods 0.000 claims abstract description 19
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 14
- UPHIPHFJVNKLMR-UHFFFAOYSA-N chromium iron Chemical compound [Cr].[Fe] UPHIPHFJVNKLMR-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910000616 Ferromanganese Inorganic materials 0.000 claims abstract description 11
- 229910000592 Ferroniobium Inorganic materials 0.000 claims abstract description 11
- 229910000519 Ferrosilicon Inorganic materials 0.000 claims abstract description 11
- 108010038629 Molybdoferredoxin Proteins 0.000 claims abstract description 11
- HBELESVMOSDEOV-UHFFFAOYSA-N [Fe].[Mo] Chemical compound [Fe].[Mo] HBELESVMOSDEOV-UHFFFAOYSA-N 0.000 claims abstract description 11
- DALUDRGQOYMVLD-UHFFFAOYSA-N iron manganese Chemical compound [Mn].[Fe] DALUDRGQOYMVLD-UHFFFAOYSA-N 0.000 claims abstract description 11
- ZFGFKQDDQUAJQP-UHFFFAOYSA-N iron niobium Chemical compound [Fe].[Fe].[Nb] ZFGFKQDDQUAJQP-UHFFFAOYSA-N 0.000 claims abstract description 11
- PNXOJQQRXBVKEX-UHFFFAOYSA-N iron vanadium Chemical compound [V].[Fe] PNXOJQQRXBVKEX-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910000604 Ferrochrome Inorganic materials 0.000 claims abstract description 10
- 239000000203 mixture Substances 0.000 claims abstract description 9
- 239000011159 matrix material Substances 0.000 claims description 33
- 238000003466 welding Methods 0.000 claims description 27
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 22
- NGONBPOYDYSZDR-UHFFFAOYSA-N [Ar].[W] Chemical compound [Ar].[W] NGONBPOYDYSZDR-UHFFFAOYSA-N 0.000 claims description 20
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 20
- 229910052721 tungsten Inorganic materials 0.000 claims description 20
- 239000010937 tungsten Substances 0.000 claims description 20
- 238000000576 coating method Methods 0.000 claims description 13
- 229910052786 argon Inorganic materials 0.000 claims description 12
- 239000007789 gas Substances 0.000 claims description 12
- 238000000227 grinding Methods 0.000 claims description 12
- 238000007788 roughening Methods 0.000 claims description 12
- 238000010314 arc-melting process Methods 0.000 claims description 8
- 244000137852 Petrea volubilis Species 0.000 claims description 7
- 238000000498 ball milling Methods 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 7
- 238000005488 sandblasting Methods 0.000 claims description 7
- 238000005516 engineering process Methods 0.000 claims description 2
- 238000012545 processing Methods 0.000 claims description 2
- 238000007254 oxidation reaction Methods 0.000 abstract description 8
- 230000003647 oxidation Effects 0.000 abstract description 7
- 239000010410 layer Substances 0.000 description 56
- 230000000052 comparative effect Effects 0.000 description 10
- 238000012360 testing method Methods 0.000 description 10
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 2
- 229910001566 austenite Inorganic materials 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- 239000010955 niobium Substances 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 229910000967 As alloy Inorganic materials 0.000 description 1
- 206010057040 Temperature intolerance Diseases 0.000 description 1
- 229910033181 TiB2 Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009837 dry grinding Methods 0.000 description 1
- 230000008543 heat sensitivity Effects 0.000 description 1
- 238000010952 in-situ formation Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- PYLLWONICXJARP-UHFFFAOYSA-N manganese silicon Chemical compound [Si].[Mn] PYLLWONICXJARP-UHFFFAOYSA-N 0.000 description 1
- 229910001105 martensitic stainless steel Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
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
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
- B23K9/173—Arc welding or cutting making use of shielding gas and of a consumable electrode
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/3053—Fe as the principal constituent
- B23K35/3066—Fe as the principal constituent with Ni as next major 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
- B23K9/00—Arc welding or cutting
- B23K9/235—Preliminary treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/02—Iron or ferrous alloys
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Powder Metallurgy (AREA)
- Nonmetallic Welding Materials (AREA)
Abstract
The present invention relates to a kind of iron-based cladding layer alloy powder material of high heat-intensity and cladding layer preparation methods, alloy powder material raw material composition is as follows: high-carbon chromium iron 8.4-11.6%, low-carbon ferrochromium powder 17.6-24.4%, nickel powder 5.0-6.3%, ferrosilicon powder 0.1-0.9%, ferromanganese powder 3.0-4.5%, molybdenum-iron powder 1.1-3.3%, vanadium iron powder 0.2-0.6%, ferro-niobium powder 0.3-0.8%, surplus is reduced iron powder.Cladding layer material heat resistance prepared by the present invention is high, and resistance to tempering is high, and high-temperature oxidation resistance is good, and has high rigidity and high-wearing feature, good with Q235 steel associativity, Economic Application value with higher.
Description
Technical field
The invention belongs to field of surface coatings, and in particular to a kind of iron-based cladding layer alloy powder material of high heat-intensity and
Cladding layer preparation method.
Background technique
Surface cladding technology is one of important method of material surface modifying, can be according to the difference of components, with lower
Cost prepares the composite material for meeting performance requirement on the surface of the material.Wherein, tungsten argon arc cladding method have heat concentrate,
The characteristics of flexibility is high, coating and matrix are firmly combined, can effectively improve the surface property of cladding material, heat engine component,
Have wide practical use on the fields such as high-temperature boiler, molding die.
The layer material of tungsten argon arc cladding at present mainly has iron-based and nickel-base alloy, changes both at home and abroad about tungsten argon arc cladding layer
The research of property in Ni base alloy powder mainly by adding SiC or in-situ formation of TiC, TiB2Equal ceramic particles are molten to strengthen
Coating, it is expensive since major components Ni belongs to scarcity metals, it is added significantly to the cost of material, and cladding material
Service performance is also not ideal enough.
Iron(-)base powder use scope is wider, and interface and matrix form metallurgical bonding after cladding, and ingredient is close with steel part.
In addition, iron(-)base powder is relatively cheap, cost can effectively reduce, therefore study tungsten argon arc cladding iron(-)base powder material
Material has extensive technological value.
It carries out surface on the matrixes such as Q235 steel plate as cladding material using existing iron(-)base powder to be modified, there are molten
The problem of coating heat resistance deficiency.For this purpose, the present invention develops to have obtained with high heat-intensity and good high temperature oxidation resistance
Tungsten argon arc cladding layer material, and maintain high rigidity and wearability.
Summary of the invention
The technical problem to be solved by the present invention is to aiming at the above shortcomings existing in the prior art, provide a kind of having high hot strength
The iron-based cladding layer alloy powder material of property and cladding layer preparation method, the cladding layer heat resistance prepared by the alloy powder material
High, resistance to tempering height, high temperature oxidation resistance are good, and maintain high rigidity and high-wearing feature, Economic Application value with higher.
In order to solve the above technical problems, present invention provide the technical scheme that
A kind of iron-based cladding layer alloy powder material of high heat-intensity, by weight percentage, alloy powder material are provided
Raw material composition is as follows: high-carbon chromium iron 8.4-11.6%, low-carbon ferrochromium powder 17.6-24.4%, nickel powder 5.0-6.3%, ferrosilicon powder
0.1-0.9%, ferromanganese powder 3.0-4.5%, molybdenum-iron powder 1.1-3.3%, vanadium iron powder 0.2-0.6%, ferro-niobium powder 0.3-0.8% are remaining
Amount is reduced iron powder.
According to the above scheme, the raw materials used and its specification trade mark is respectively as follows: high-carbon chromium iron FeCr55C6, low-carbon ferrochromium powder
FeCr69C0.25, nickel powder Ni99, ferrosilicon powder FeSi75, ferromanganese powder FeMn84C0.30, molybdenum-iron powder FeMo60, vanadium iron powder FeV80,
Ferro-niobium powder FeNb60-A, reduced iron powder Fe99.
According to the above scheme, the material purity >=99wt%, partial size are 100~150 mesh.
The invention also includes the method for preparing the iron-based cladding layer of high heat-intensity using above-mentioned alloy powder material, feature exists
In the following steps are included:
1) it after raw material being weighed in proportion, through ball mill mixing, 1~3h of ball milling, is subsequently poured into and is set with Gas Tungsten Arc Welding
In standby matching used powder feeder；
2) matrix surface is subjected to pretreatment and removes surface oxide layer；
3) the step 1) raw material is prepared into cladding layer in step 2) described matrix surface using tungsten argon arc melting and coating process；
4) tempering is carried out to cladding layer obtained by step 3), i.e., the iron-based cladding of high heat-intensity is prepared in matrix surface
Layer.
According to the above scheme, step 2) described matrix is Q235 steel.
According to the above scheme, the step 2) pretreating process are as follows: matrix surface first through 180 mesh sand paper pre-grinding, then utilizes
Granularity is 60 mesh Brown Alundums to matrix surface sandblasting roughening treatment, and air pressure 0.4-0.6MPa, the roughening treatment time is 10s.
According to the above scheme, the tungsten argon arc melting and coating process parameter are as follows: 100~120A of welding current, speed of welding 70~
80mm/min, tungsten needle 4~5mm of extension elongation, 6~7L/min of argon flow pass through powder feeder after tungsten argon arc stablizes the starting the arc
Automatic powder feeding, 50~60g/min of powder feed rate.
According to the above scheme, step 4) the tempering process condition are as follows: tempering temperature is 550~570 DEG C, tempering time 2
~4h.
The beneficial effects of the present invention are: (1) present invention provide a kind of high heat-intensity iron-based cladding layer alloy powder material
Material, play the sharpest edges of each element: Ni is mainly used for improving material wetability and improves cladding layer capability, improves coating material
The crack resistance and corrosion resistance of material；Cr mainly by solution strengthening and forms the modes such as alloy carbide, significantly improves cladding layer material
Hardness, wearability, the corrosion resistance of material；Mo mainly improves the resistance to tempering of cladding layer, and plays the role of refining crystal grain, generates
Hard phase improves Wear Resistance；V, Nb mainly forms tiny alloy carbide with C, can refine crystal grain, improve resistance to tempering,
And Nb can also reduce the heat sensitivity of steel；In addition, Si and Mn are mainly used for deoxidation, using manganese silicon combined deoxidation, element is improved
Transfer coefficient, in addition Mn is strong austenite former, expands austenite phase field, improves the toughness of cladding layer material, is conducive to
Improve the wearability and corrosion stability of cladding layer material；(2) the method work provided by the invention for preparing the iron-based cladding layer of high heat-intensity
Skill is simple, is easy to implement, low in cost, and performance is prominent, is not necessarily to weld preheating, postheating, splashes in welding process small, and
The clad layer surface of preparation is smooth and uniform, flawless, without the chip off-falling that falls off, has great practical value；(3) prepared by the present invention
Cladding layer formability of materials is good, hardness is high, wearability is good, good corrosion resistance, resistance to tempering are high, good with Q235 steel associativity,
Compared with typical hot die steel H13 steel and 4Cr13 steel, comprehensive performance is obviously improved, and has very high economic value.
Specific embodiment
Technical solution in order to enable those skilled in the art to better understand the present invention makees the present invention below with reference to embodiment
It is described in further detail.
The raw materials used powder of the embodiment of the present invention and its specification trade mark are respectively as follows: high-carbon chromium iron FeCr55C6, low-carbon chromium
Iron powder FeCr69C0.25, nickel powder Ni99, ferrosilicon powder FeSi75, ferromanganese powder FeMn84C0.30, molybdenum-iron powder FeMo60, vanadium iron powder
FeV80, ferro-niobium powder FeNb60-A, reduced iron powder Fe99.
Embodiment 1
The method for preparing the iron-based cladding layer of high heat-intensity using alloy powder material, steps are as follows:
1) the above-mentioned raw material powder for stating specification and the trade mark is selected, each compositional purity is all larger than equal to 99%, partial size 100
~150 mesh weigh it in proportion, mass percent (wt%) are as follows: high-carbon chromium iron 8.5, low-carbon ferrochromium powder 20.2, nickel powder
5.0, ferrosilicon powder 0.1, ferromanganese powder 3.0, molybdenum-iron powder 1.1, vanadium iron powder 0.2, ferro-niobium powder 0.3, surplus are reduced iron powder, and raw material is through ball
Grinding machine mixing, 1~3h of ball milling, obtain uniform powder, then pour into powder and send with what Gas Tungsten Arc Welding coordinative composition of equipments used
In powder device；
2) matrix selects Q235 steel plate (150mm × 50mm × 10mm), and surface is adopted after granularity is 180 mesh sand paper pre-grinding
With granularity be 60 mesh Brown Alundum to matrix surface sandblasting roughening treatment remove surface oxide layer, gas pressure 0.5MPa, slightly
Changing the processing time is 10s；
3) powder of step 1) is prepared into cladding layer in the matrix surface of step 2) using tungsten argon arc melting and coating process, tungsten electrode
Argon arc welding parameter: welding current (I) 110A, speed of welding (V) 75mm/min, tungsten needle extension elongation (L) 5mm, argon flow 7L/
Min passes through powder feeder automatic powder feeding, powder feed rate 60g/min after tungsten argon arc stablizes the starting the arc；
4) to cladding layer tempering 3h at 560 DEG C obtained by step 3), i.e., high heat-intensity is prepared in matrix surface
Iron-based cladding layer.
Embodiment 2
The method for preparing the iron-based cladding layer of high heat-intensity using alloy powder material, steps are as follows:
1) the above-mentioned raw material powder for stating specification and the trade mark is selected, each compositional purity is all larger than equal to 99%, partial size 100
~150 mesh weigh it in proportion, mass percent (wt%) are as follows: high-carbon chromium iron 10.0, low-carbon ferrochromium powder 21.0, nickel powder
5.6, ferrosilicon powder 0.4, ferromanganese powder 3.7, molybdenum-iron powder 2.2, vanadium iron powder 0.4, ferro-niobium powder 0.6, surplus are reduced iron powder, and raw material is through ball
Grinding machine mixing, 1~3h of ball milling, obtain uniform powder, then pour into powder and send with what Gas Tungsten Arc Welding coordinative composition of equipments used
In powder device；
2) matrix selects Q235 steel plate, and surface uses granularity for the Brown Alundum of 60 mesh after granularity is 180 mesh sand paper pre-grinding
To matrix surface sandblasting roughening treatment, gas pressure 0.5MPa, the roughening treatment time is 10s；
3) powder of step 1) is prepared into cladding layer in the matrix surface of step 2) using tungsten argon arc melting and coating process, tungsten electrode
Argon arc welding parameter: welding current (I) 110A, speed of welding (V) 75mm/min, tungsten needle extension elongation (L) 4.5mm, argon flow
6.5L/min passes through powder feeder automatic powder feeding, powder feed rate 55g/min after tungsten argon arc stablizes the starting the arc；
4) to cladding layer tempering 3h at 560 DEG C obtained by step 3), i.e., high heat-intensity is prepared in matrix surface
Iron-based cladding layer.
Embodiment 3
The method for preparing the iron-based cladding layer of high heat-intensity using alloy powder material, steps are as follows:
1) the above-mentioned raw material powder for stating specification and the trade mark is selected, each compositional purity is all larger than equal to 99%, partial size 100
~150 mesh weigh it in proportion, mass percent (wt%) are as follows: high-carbon chromium iron 11.5, low-carbon ferrochromium powder 21.9, nickel powder
6.3, ferrosilicon powder 0.7, ferromanganese powder 4.5, molybdenum-iron powder 3.3, vanadium iron powder 0.6, ferro-niobium powder 0.8, surplus are reduced iron powder, and raw material is through ball
Grinding machine mixing, 1~3h of ball milling, obtain uniform powder, then pour into powder and send with what Gas Tungsten Arc Welding coordinative composition of equipments used
In powder device；
2) matrix selects Q235 steel plate, and surface uses granularity for the Brown Alundum of 60 mesh after granularity is 180 mesh sand paper pre-grinding
To matrix surface sandblasting roughening treatment, gas pressure 0.5MPa, the roughening treatment time is 10s；
3) powder of step 1) is prepared into cladding layer in the matrix surface of step 2) using tungsten argon arc melting and coating process, tungsten electrode
Argon arc welding parameter: welding current (I) 110A, speed of welding (V) 75mm/min, tungsten needle extension elongation (L) 5mm, argon flow 7L/
Min passes through powder feeder automatic powder feeding, powder feed rate 60g/min after tungsten argon arc stablizes the starting the arc；
4) to cladding layer tempering 3h at 560 DEG C obtained by step 3), i.e., high heat-intensity is prepared in matrix surface
Iron-based cladding layer.
Embodiment 4
The method for preparing the iron-based cladding layer of high heat-intensity using alloy powder material, steps are as follows:
1) the above-mentioned raw material powder for stating specification and the trade mark is selected, each compositional purity is all larger than equal to 99%, partial size 100
~150 mesh weigh it in proportion, mass percent (wt%) are as follows: high-carbon chromium iron 11.6, low-carbon ferrochromium powder 17.6, nickel powder
5.0, ferrosilicon powder 0.1, ferromanganese powder 3.0, molybdenum-iron powder 1.1, vanadium iron powder 0.2, ferro-niobium powder 0.3, surplus are reduced iron powder, and raw material is through ball
Grinding machine mixing, 1~3h of ball milling, obtain uniform powder, then pour into powder and send with what Gas Tungsten Arc Welding coordinative composition of equipments used
In powder device；
2) matrix selects Q235 steel plate, and surface uses granularity for the Brown Alundum of 60 mesh after granularity is 180 mesh sand paper pre-grinding
To matrix surface sandblasting roughening treatment, gas pressure 0.5MPa, the roughening treatment time is 10s；
3) powder of step 1) is prepared into cladding layer in the matrix surface of step 2) using tungsten argon arc melting and coating process, tungsten electrode
Argon arc welding parameter: welding current (I) 110A, speed of welding (V) 75mm/min, tungsten needle extension elongation (L) 5mm, argon flow 7L/
Min passes through powder feeder automatic powder feeding, powder feed rate 60g/min after tungsten argon arc stablizes the starting the arc；
4) to cladding layer tempering 3h at 560 DEG C obtained by step 3), i.e., high heat-intensity is prepared in matrix surface
Iron-based cladding layer.
Embodiment 5
The method for preparing the iron-based cladding layer of high heat-intensity using alloy powder material, steps are as follows:
1) the above-mentioned raw material powder for stating specification and the trade mark is selected, each compositional purity is all larger than equal to 99%, partial size 100
~150 mesh weigh it in proportion, mass percent (wt%) are as follows: high-carbon chromium iron 8.4, low-carbon ferrochromium powder 24.4, nickel powder
6.3, ferrosilicon powder 0.9, ferromanganese powder 4.5, molybdenum-iron powder 3.3, vanadium iron powder 0.6, ferro-niobium powder 0.8, surplus are reduced iron powder, and raw material is through ball
Grinding machine mixing, 1~3h of ball milling, obtain uniform powder, then pour into powder and send with what Gas Tungsten Arc Welding coordinative composition of equipments used
In powder device；
2) matrix selects Q235 steel plate, and surface uses granularity for the Brown Alundum of 60 mesh after granularity is 180 mesh sand paper pre-grinding
To matrix surface sandblasting roughening treatment, gas pressure 0.5MPa, the roughening treatment time is 10s；
3) powder of step 1) is prepared into cladding layer in the matrix surface of step 2) using tungsten argon arc melting and coating process, tungsten electrode
Argon arc welding parameter: welding current (I) 110A, speed of welding (V) 75mm/min, tungsten needle extension elongation (L) 5mm, argon flow 7L/
Min passes through powder feeder automatic powder feeding, powder feed rate 60g/min after tungsten argon arc stablizes the starting the arc；
4) to cladding layer tempering 3h at 560 DEG C obtained by step 3), i.e., high heat-intensity is prepared in matrix surface
Iron-based cladding layer.
Comparative example 1
Hot die steel H13 is chosen, 1040 ± 10 DEG C of quenchings, 540 ± 10 DEG C of temperings are taken, preparation detects sample:
150mm×50mm×10mm。
Comparative example 2
Martensitic stain less steel 4Cr13 is chosen, 1000~1050 DEG C of quenchings, 200~300 DEG C of temperings, preparation inspection are taken
Test specimens: 150mm × 50mm × 10mm.
Embodiment 6
The surface hardness of material and comparative example 1-2 resulting materials obtained by testing example 1-5 with cladding layer:
Hardness number is measured using HR-150A Rockwell hardness machine, load 150kg takes five point test hardness to cladding layer,
The average Rockwell hardness number for finally obtaining each cladding layer, the results are shown in Table 1.
Table 1
Through table 1 it can be found that compared with H13 and 4Cr13, the cladding layer material hardness that the present invention obtains, which has, obviously to be mentioned
It is high.
Embodiment 7
The wearability of material and comparative example 1-2 resulting materials surface obtained by testing example 1-5 with cladding layer:
Using MM-200 type determination of wear testing machine wearability, specimen size is 7 × 7 × 25mm, and friction duty is dry grinding
Sliding friction is loaded as 5kg, revolving speed 200r/min, experimental period 1h；Abrasion front and back quality is measured with electronic balance (to survey
Cleaned before amount with ultrasonic washing instrument), experimental result is as shown in table 2.As can be seen that the weight loss of material described in comparative example 1-2
It is 3 times or so of cladding layer obtained by embodiment 1-5, compared with H13 steel and 4Cr13 steel, cladding layer material provided by the present invention
Wearability significantly improve.
Table 2
| Test specimen | Quality/g before wearing | Quality/g after abrasion | Weightlessness/mg |
| Embodiment 1 | 9.3063 | 9.2921 | 14.2 |
| Embodiment 2 | 9.2857 | 9.2702 | 15.5 |
| Embodiment 3 | 9.1848 | 9.1669 | 17.9 |
| Embodiment 4 | 9.1945 | 9.1779 | 16.6 |
| Embodiment 5 | 9.2698 | 9.2537 | 15.2 |
| Comparative example 1 | 9.1179 | 9.0708 | 47.1 |
| Comparative example 2 | 9.1545 | 9.1123 | 42.2 |
Embodiment 8
The heat resistance of material and comparative example 1-2 resulting materials described in testing example 1-5 with cladding layer:
Mechanical behavior under high temperature test is carried out to each embodiment and comparative example resulting materials using Gleeble-3800 experimental machine,
The yield strength of material at a temperature of obtaining 500~700 DEG C, as shown in table 3.
Table 3
Through 3 result of table it can be found that compared with H13 steel and 4Cr13 steel, the cladding layer heat resistance that the present invention obtains has bright
It is aobvious to be promoted, be conducive to the mechanical behavior under high temperature for improving hot die steel.
Embodiment 9
The high-temperature oxidation resistant of material and comparative example 1-2 resulting materials surface obtained by testing example 1-5 with cladding layer
Property:
High temperature oxidation resistance test, oxidizing temperature are carried out to experimental material sample using the box resistance-heated furnace of 3KW1200
750 DEG C, oxidization time 36h are set as, carries out a sample weighing, and recording materials sample on BS223S electronic balance every 6h
Increased value (the μ g.mm of quality-2), as shown in table 4.
Table 4
By comparison it can be found that compared with H13 steel and 4Cr13 steel, cladding layer material that the embodiment of the present invention obtains
High-temperature oxidation resistance has very big promotion, is conducive to the high-temperature oxidation resistance for improving hot die steel.
Claims (7)
1. a kind of method for preparing the iron-based cladding layer of high heat-intensity with alloy powder material using the iron-based cladding layer of high heat-intensity,
Be characterized in that the following steps are included:
1) it after raw material being weighed in proportion, through ball mill mixing, 1 ~ 3h of ball milling, is subsequently poured into and Gas Tungsten Arc Welding coordinative composition of equipments
In the powder feeder used, the raw material composition is as follows: high-carbon chromium iron 8.4-11.6%, low-carbon ferrochromium powder 17.6-24.4%, nickel powder
5.0-6.3%, ferrosilicon powder 0.1-0.9%, ferromanganese powder 3.0-4.5%, molybdenum-iron powder 1.1-3.3%, vanadium iron powder 0.2-0.6%, ferro-niobium powder
0.3-0.8%, surplus are reduced iron powder；
2) matrix surface is subjected to pretreatment and removes surface oxide layer；
3) raw material described in step 1) is prepared into cladding layer on step 2 described matrix surface using tungsten argon arc melting and coating process；
4) tempering is carried out to cladding layer obtained by step 3), i.e., the iron-based cladding layer of high heat-intensity is prepared in matrix surface.
2. the method according to claim 1 for preparing the iron-based cladding layer of high heat-intensity, it is characterised in that original used in step 1)
Material and its specification trade mark are respectively as follows: high-carbon chromium iron FeCr55C6, low-carbon ferrochromium powder FeCr69C0.25, nickel powder Ni99, ferrosilicon powder
FeSi75, ferromanganese powder FeMn84C0.30, molybdenum-iron powder FeMo60, vanadium iron powder FeV80, ferro-niobium powder FeNb60-A, reduced iron powder
Fe99。
3. the method according to claim 1 for preparing the iron-based cladding layer of high heat-intensity, it is characterised in that original described in step 1)
Expect that purity >=99wt%, partial size are 100 ~ 150 mesh.
4. the method according to claim 1 for preparing the iron-based cladding layer of high heat-intensity, it is characterised in that base described in step 2
Body is Q235 steel.
5. the method according to claim 1 for preparing the iron-based cladding layer of high heat-intensity, it is characterised in that pre- described in step 2
Treatment process are as follows: matrix surface is then that 60 mesh Brown Alundums are thick to matrix surface sandblasting using granularity first through 180 mesh sand paper pre-grinding
Change processing, air pressure 0.4-0.6MPa, roughening treatment time are 10s.
6. the method according to claim 1 for preparing the iron-based cladding layer of high heat-intensity, it is characterised in that tungsten described in step 3)
Pole arc cladding technology parameter are as follows: 100 ~ 120A of welding current, 70 ~ 80mm/min of speed of welding, tungsten needle 4 ~ 5mm of extension elongation,
6 ~ 7L/min of argon flow passes through powder feeder automatic powder feeding, 50 ~ 60g/min of powder feed rate after tungsten argon arc stablizes the starting the arc.
7. the method according to claim 1 for preparing the iron-based cladding layer of high heat-intensity, it is characterised in that returned described in step 4)
Fire process condition are as follows: tempering temperature is 550 ~ 570 DEG C, and tempering time is 2 ~ 4h.
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