CN107815682A - A kind of method that wear-resisting toughness reinforcing coating is prepared on potassium steel surface - Google Patents
A kind of method that wear-resisting toughness reinforcing coating is prepared on potassium steel surface Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
- C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
- C23C24/103—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
- C23C24/106—Coating with metal alloys or metal elements only
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/78—Combined heat-treatments not provided for above
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/10—Ferrous alloys, e.g. steel alloys containing cobalt
- C22C38/105—Ferrous alloys, e.g. steel alloys containing cobalt containing Co and Ni
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
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Abstract
The invention discloses a kind of method that wear-resisting toughness reinforcing coating is prepared on potassium steel surface, it is characterised in that：Comprise the following steps：S1：Substrate pretreated before cladding；S2：Powder pre-treating before cladding；S3：Cladding；S4：It is heat-treated after cladding.The present invention uses plasma melting coating technique, solution treatment and coating surface aging technique, having prepared has high rigidity, the Fe Ni based alloy coatings of high-wearing feature and high impact toughness, both the case hardness and wearability of matrix material had been improved, solve the problems, such as that conventional rigid particle strengthening Metal Substrate wear-resistant coating easily ftractures under the operating modes such as middle high stress again, and the coating prepared has good metallurgical binding with matrix material, substantially increase the combination property of coating, so that matrix material is obtaining more fully protecting, so as to extend matrix material service life, with good application prospect.
Description
Technical field
The present invention relates to one kind wear-resisting increasing is prepared in potassium steel surface treatment method, more particularly to one kind on potassium steel surface
The method of tough coating.
Background technology
Plasma cladding is also referred to as plasma spray, is to utilize high heat caused by beam-plasma, alloy powder cladding is existed
A kind of high energy beam process for modifying surface of base metal surface.Plasma cladding refers to that using tungsten electrode as negative pole cladding cavity is just
Pole forms untransferable arc loop, and rare gas (argon gas) is at the uniform velocity sent into cavity, punctured through electric current, in cavity in the middle part of gas molecule
The part electronics of point atom, which is excited, free to be formed plasma untransferable arc (small arc) is formed between nozzle and tungsten electrode；Then work
Part connects positive pole and forms new loop with tungsten electrode, forms transferred arc (big arc) between workpiece and tungsten electrode in the case where low-voltage high-frequency power supply excites,
Big arc under three kinds of effects of magnetic compression caused by nozzle mechanical compress, the hot compression of gases at high pressure, charged particle by being collectively forming
High-density plasma；Uniformly be sent into alloy powder to plasma arc center while using high-temperature plasma as thermal source, wait from
Sub- rifle completes all kinds of shape claddings with PC control systems, and the alloy powder of melting forms molten bath with matrix surface, and with base
Body rapidly cools to form the process of high-performance cladding layer.Microstructure of surface cladding layer is tiny, fine and close, uniform, coating without obvious crackle and
Stomata.Its combination is firm metallurgical binding.
In process for modifying surface field, the surface engineering technology personnel of countries in the world are melted to surface cladding technology, laser
The further investigation of coating technique makes it be widely used and promote.By the Technical comparing (table 1-1) of the two, we can know
Road, plasma melting coating technique have an obvious advantage, and the quality of cladding layer is higher；Equipment cost is lower；Operating environment is more easy；
It is wider in application.
The indices of table 1-1 laser melting and coating techniques and plasma melting coating technique
Tab.1-1Indicators of the laser cladding and plasma cladding
The composition of surface fused coating is mainly determined by the cladding material added during cladding.The design and choosing of cladding material
Select particularly significant to the quality and performance of surface fused coating.Thus exploitation surface cladding proprietary material grinds as surface cladding technology
The emphasis and focus studied carefully.Up to the present, for the different Service Environment of cladding layer, the cladding material system developed covers
The multiple fields such as wear-resistant, corrosion-resistant, anti-oxidant, Anti-erosion.Surface deposited metal material can be divided into self-melting alloy under normal circumstances
Material and the major class of metal-base composites two.
1. self-melting alloy material
Self-melting alloy material is mainly Fe bases, Co bases and the class of Ni bases three.Contain in powder with deoxidation, fluxing effect
The elements such as Si, Bi, alloy powder in cladding process can be very good to protect, the fusing point of such alloy material is relatively low, mobility
Alright, there is good wellability with parent metal.Under quick freezing action, enhancing phase, Second Phase Particles Dispersed precipitate are in molten
In coating, hardness, the wearability of cladding layer can increase substantially.
Fe base self-melting alloy materials are the self-melting alloy materials being most widely used, based on Fe elements, by Cr, B,
The alloying elements such as Si form.Addition such as W, Mo and Cr element can improve the heat-resisting ability of cladding layer；Ni elements improve coating
Cracking resistance；Add C and B element, carbide or boride crystal grain thinning formed in cladding layer, improve cladding layer hardness and
Wearability.
Co base self-melting alloy material mainly using Co-Cr-W as alloy system on the basis of add the alloys such as a small amount of Si, B
The Co based alloys that element is formed have good anti-wear performance and high-temperature behavior, and main application is anti-corrosion to workpiece surface, wear-resisting, resistance to
The industrial circles such as the higher electric power of the properties such as high temperature requirement, metallurgy, sea, petrochemical industry.
Ni base self-melting alloy materials are broadly divided into Ni-Cr-Si-B and the major classes of Ni-B-Si two.Si and B element addition one
Aspect can be used as deoxidier and from flux, and increase wetability on the other hand can be by dispersion-strengtherning and solution strengthening to cladding layer
Strengthened；Cr elements are added in alloy system can play a part of solution strengthening to cladding layer, and Cr can also same B, C knot in addition
Symphysis improves the hardness and wearability of cladding layer into hard phase
2. metal-base composites
Metal-base composites is by two or more by carbide, nitride, boride, oxide and silicide etc.
Various high-melting-point hard ceramic materials and metal mixed compound are formed.Metal-base composites continues to develop hair in recent years
Exhibition, using metal-base composites as coating material, prepare ceramic particle in metal base surface using plasma melting coating technique and increase
Strong metal-based compound coating turns into the new study hotspot in Surface Engineering field.Ceramic on metal cladding layer combines ceramic enhancing
The characteristic such as mutually excellent high intensity, high rigidity, wear-resisting, the anti-corrosion and good modeling of metal, toughness and institute's reinforced metal base material
Wetability, make cladding layer that there is the properties such as high intensity, high rigidity, heat-resisting, anti-corrosion and wearability, and traditional self-fluxing nature is closed
Golden material is compared, and cladding layer capability, which has, significantly to be lifted, and has good application prospect in terms of wear-resisting cladding layer is prepared.
Potassium steel high-abrasive material is because its surface produces hardening in extruding and impact process and obtains good wear-resistant spy
Property, be always mining and the industry such as railway main force's high-abrasive material.But under low shock loading or abrasive wear working condition,
Because abrasive contact is without sufficiently high surface impacts energy, it is impossible to reach sufficiently processing hardening, potassium steel is failed table
Reveal higher wearability, so as to influence its service life.
In order to improve the wearability of the potassium steel under low-stress, researcher takes adjusting component, alloying, Re Chu
The measures such as science and engineering skill, Metamorphism treatment make potassium steel have good wearability and impact resistance, Er Qie under high impact stresses
It is still more wear-resisting under low-stress.Meanwhile develop the substitution of the materials such as medium carbon alloy steel, rich chromium cast iron one after another in recent years both at home and abroad
Potassium steel, but the using effect under complex working condition is undesirable.The surface of part is being carried out at global design with center portion performance
It is difficult to take into account both during reason.
To extend the service life of part, the reliability of plant equipment is improved, material and mechanical subject are improving machinery
Piece surface aspect of performance has carried out substantial amounts of research and discovery.Added in Fe bases, Ni bases and Co base self-fluxing alloyed powders
Various high-hardness ceramic particles, it is remarkably improved the anti-wear performance of metal alloy coating.
In fields such as metallurgy, mine, building materials, some parts used under high impact forces (such as grinder hammerhead) are under arms
During bear the effect such as the impact of ore etc., high-speed resistance, extruding, its service condition is harsh and complicated, to the performance of material
It is required that very Xun carves, not requiring nothing more than material has good wearability, also requires that material has certain shock resistance.It is high hard
The Metal Substrate wear-resistant coating of degree ceramic particle enhancing has the advantages that hardness is high and wearability is good, but its shock resistance compared with
Difference, it is difficult to the protection matrix under the complex working conditions such as impact and the conjunction of abrasive wear lotus root.Although nickel and cobalt-based coating and iron-based
Coating is improved compared to impact resistance, but cost is more expensive, it is difficult to is promoted.
The content of the invention
It is an object of the invention to propose a kind of method that wear-resisting toughness reinforcing coating is prepared on potassium steel surface, compared in biography
The addition alloying element of system strengthens and heat treatment reinforcement, more saves material and the energy, equipment cost are lower.
The technical solution adopted in the present invention：A kind of method that wear-resisting toughness reinforcing coating is prepared on potassium steel surface, including such as
Lower step：
S1：Substrate pretreated before cladding；
S2：Powder pre-treating before cladding；
S3：Cladding；
S4：It is heat-treated after cladding.
S1：Substrate pretreated before cladding：First the oxide layer of potassium steel matrix surface is polished off with emery wheel or sand paper, so
Clean the greasy dirt on surface with alcohol acetone again afterwards, matrix is preheated, preheating temperature is 200 DEG C~300 DEG C.
S2：Powder pre-treating before cladding：Fe-Ni base alloy powder of the Size Distribution in 180~300 mesh is screened, uniformly stand
Vacuum drying chamber is put into after opening, is vacuumized, temperature adjustment is 80~105 DEG C, is incubated 2~3 hours.
S3：Cladding：Potassium steel matrix and Fe-Ni base alloy powders are respectively charged into plasma melting coating equipment, cladding process
Synchronously send Fe-Ni base alloy powders and synchronous argon gas protection, the melting and coating process parameter of plasma melting coating equipment are：Electric current 140~
160A, 10~14mm of nozzle height, 180~220g/min of powder feed rate, 4~6L/min of powder feeding throughput, big ion-gas flow 4
~6L/min, small ion 4~6L/min of throughput, 160~180mm/min of sweep speed, the painting that width is 8~10mm is obtained
Layer；
S4：It is heat-treated after cladding：Heat treatment is divided to solid solution and the step of timeliness two, by high temperature carbon shirt-circuiting furnace to potassium steel matrix and painting
Layer carries out solution treatment, and solid solution treatment process is heats up with stove, and temperature is 815~830 DEG C, and soaking time is 1~1.5 hour
Water cooling afterwards；Ageing Treatment is carried out to potassium steel matrix and coating by Muffle furnace, aging technique is to enter stove, temperature 500 to temperature
~520 DEG C, soaking time is 3~4 hours, air cooling.
Preferably, Fe-Ni base alloy powders ingredient percent is respectively：C≤0.03%, Ni：18.00%~
19.00%th, Co：8.50%~9.50%, Mo：4.60%~5.20%, Si：3.40%~3.60%, Mn≤0.10%, Ti：
0.50%~0.80%, Al：0.05%~0.15%, P≤0.01%, S≤0.01%, surplus Fe.
Preferably, the rated power of the plasma melting coating equipment is 20KW, and specified cladding electric current is 220A.
Compared with prior art, the beneficial effects of the invention are as follows：(1) present invention is compared in traditional addition alloying element
Strengthen and heat treatment reinforcement, more saving material and the energy, equipment cost are lower；Operating environment is more easy, the dirt to environment
Dye is smaller, and the process-cycle is shorter, and the processing method of labor productivity higher (2) present invention, plasma arc energy is concentrated, heat input
Height, the flexible stability of technique is good, accurately parts any part can be strengthened or be repaired；(3) processing of the invention
Method, obtained coating structure is fine and close and excellent metallurgical binding can be kept between metal base；(4) present invention using etc. from
Sub- melting and coating technique, Fe-Ni based alloys, by solution treatment and coating surface aging technique, are prepared as cladding coating material
There is the Fe-Ni based alloy coatings of high rigidity, high-wearing feature and high impact toughness, both improved the case hardness of matrix material
And wearability, solve that conventional rigid particle strengthening Metal Substrate wear-resistant coating easily ftractures under the operating modes such as middle high stress again asks
Topic, and the coating prepared has good metallurgical binding with matrix material, substantially increases the combination property of coating so that
Matrix material is obtaining more fully protecting, and so as to extend matrix material service life, has good application prospect.
Embodiment
Technical scheme is further illustrated with reference to specific embodiment.
Embodiment 1
Mn13 potassium steel and Fe-Ni base alloy powders are handled by following operating procedure：
S1：First sand paper polishes off the oxide layer of potassium steel matrix surface, then the greasy dirt on surface is cleaned with alcohol acetone,
Before plasma cladding is carried out, 300 DEG C of preheatings are carried out.
S2：Fe-Ni based alloys are sieved, screening obtains Size Distribution in 180~300 mesh powders.Then, will sieve
Powder is put into vacuum drying chamber, and temperature is transferred to 100 DEG C, is incubated 2 hours.
S3：Mn13 potassium steel and Fe-Ni base alloy powders are installed respectively, carry out cladding.Melting and coating process parameter is：Electric current
140A, nozzle height 10mm, powder feed rate 180g/min, powder feeding throughput 4L/min, big ion-gas flow 4L/min, small ion
Throughput 4L/min, sweep speed 160mm/min, width about 10mm coating is obtained.
S4：After cooling, sample cladding obtained is put into high temperature carbon shirt-circuiting furnace, and temperature is adjusted to 820 DEG C, is warming up to stove
1 hour is incubated after 820 DEG C, water cooling, drying；Muffle furnace is transferred to as 500 DEG C, treats that temperature is raised to 500 DEG C, water cooling is dried up
Sample be put into Muffle furnace, soaking time is 4 hours, air cooling.Heat treatment is divided to solid solution and the step of timeliness two.Cladding layer solid solution be for
In order that superfluous fully can mutually be dissolved into solid solution, saturated solid solution is obtained, tissue is carried out for follow-up Ageing Treatment
Preparation；Ageing Treatment is that the intermetallic compound that the alloying elements such as Ni, Co, Mo, Ti are separated out in order to microstructure of surface cladding layer is realized
Coating Strengthening-Toughening.
Embodiment 2
Mn14 potassium steel and Fe-Ni base alloy powders are handled by following operating procedure：
S1：First sand paper polishes off the oxide layer of potassium steel matrix surface, then the greasy dirt on surface is cleaned with alcohol acetone,
Before plasma cladding is carried out, 300 DEG C of preheatings are carried out.
S2：Fe-Ni based alloys are sieved, screening obtains Size Distribution in 180~300 mesh powders.Then, will sieve
Powder is put into vacuum drying chamber, and temperature is transferred to 100 DEG C, is incubated 2 hours.
S3：Mn14 potassium steel and Fe-Ni base alloy powders are installed respectively, carry out cladding.Melting and coating process parameter is：Electric current
160A, nozzle height 12mm, powder feed rate 220g/min, powder feeding throughput 4L/min, big ion-gas flow 6L/min, small ion
Throughput 4L/min, sweep speed 180mm/min, width about 10mm coating is obtained.
S4：After cooling, sample cladding obtained is put into high temperature carbon shirt-circuiting furnace, and temperature is adjusted to 820 DEG C, is warming up to stove
1 hour is incubated after 820 DEG C, water cooling, drying.Muffle furnace is transferred to as 500 DEG C, treats that temperature is raised to 500 DEG C, water cooling is dried up
Sample be put into Muffle furnace, soaking time is 4 hours, air cooling.
Embodiment 3
Mn15 potassium steel and Fe-Ni base alloy powders are handled by following operating procedure：
S1：First sand paper polishes off the oxide layer of potassium steel matrix surface, then the greasy dirt on surface is cleaned with alcohol acetone,
Before plasma cladding is carried out, 300 DEG C of preheatings are carried out.
S2：Fe-Ni based alloys are sieved, screening obtains Size Distribution in 180~300 mesh powders.Then, will sieve
Powder is put into vacuum drying chamber, and temperature is transferred to 100 DEG C, is incubated 2 hours.
S3：Mn15 potassium steel and Fe-Ni base alloy powders are installed respectively, carry out cladding.Melting and coating process parameter is：Electric current
150A, nozzle height 13mm, powder feed rate 200g/min, powder feeding throughput 5L/min, big ion-gas flow 5L/min, small ion
Throughput 5L/min, sweep speed 170mm/min, width about 9mm coating is obtained.
S4：After cooling, sample cladding obtained is put into high temperature carbon shirt-circuiting furnace, and temperature is adjusted to 820 DEG C, is warming up to stove
1 hour is incubated after 820 DEG C, water cooling, drying.Muffle furnace is transferred to as 500 DEG C, treats that temperature is raised to 500 DEG C, water cooling is dried up
Sample be put into Muffle furnace, soaking time is 4 hours, air cooling.
Embodiment 4
Mn16 potassium steel and Fe-Ni base alloy powders are handled by following operating procedure：
S1：First sand paper polishes off the oxide layer of potassium steel matrix surface, then the greasy dirt on surface is cleaned with alcohol acetone,
Before plasma cladding is carried out, 300 DEG C of preheatings are carried out.
S2：Fe-Ni based alloys are sieved, screening obtains Size Distribution in 180~300 mesh powders.Then, will sieve
Powder is put into vacuum drying chamber, and temperature is transferred to 100 DEG C, is incubated 2 hours.
S3：Mn16 potassium steel and Fe-Ni base alloy powders are installed respectively, carry out cladding.Melting and coating process parameter is：Electric current
160A, nozzle height 12mm, powder feed rate 220g/min, powder feeding throughput 4L/min, big ion-gas flow 6L/min, small ion
Throughput 4L/min, sweep speed 180mm/min, width about 10mm coating is obtained.
S4：After cooling, sample cladding obtained is put into high temperature carbon shirt-circuiting furnace, and temperature is adjusted to 820 DEG C, is warming up to stove
1 hour is incubated after 820 DEG C, water cooling, drying.Muffle furnace is transferred to as 500 DEG C, treats that temperature is raised to 500 DEG C, water cooling is dried up
Sample be put into Muffle furnace, soaking time is 4 hours, air cooling.
The Fe-Ni based alloy coating specimens obtained using above-mentioned technique, by performance test, its result is as in the attached table.
Subordinate list 1：The Fe-Ni based alloy coating specimens the performance test results (comparing matrix) obtained using the inventive method
For those skilled in the art, technical scheme that can be as described above and design, make other each
Kind is corresponding to be changed and deforms, and all these change and deformed the protection model that should all belong to the claims in the present invention
Within enclosing.
Claims (7)
- A kind of 1. method that wear-resisting toughness reinforcing coating is prepared on potassium steel surface, it is characterised in that：Comprise the following steps：S1：Substrate pretreated before cladding；S2：Powder pre-treating before cladding；S3：Cladding；S4：It is heat-treated after cladding.
- A kind of 2. method that wear-resisting toughness reinforcing coating is prepared on potassium steel surface according to claim 1, it is characterised in that： S1：Substrate pretreated before cladding：First the oxide layer of potassium steel matrix surface is polished off with emery wheel or sand paper, then uses wine again The greasy dirt on smart acetone cleaning surface, is preheated to matrix, and preheating temperature is 200 DEG C~300 DEG C.
- A kind of 3. method that wear-resisting toughness reinforcing coating is prepared on potassium steel surface according to claim 1, it is characterised in that： S2：Powder pre-treating before cladding：Size Distribution is screened in the Fe-Ni base alloy powders of 180~300 mesh, is put into after uniformly spreading out Vacuum drying chamber, vacuumize, temperature adjustment is 80~105 DEG C, is incubated 2~3 hours.
- A kind of 4. method that wear-resisting toughness reinforcing coating is prepared on potassium steel surface according to claim 1, it is characterised in that： S3：Cladding：Potassium steel matrix and Fe-Ni base alloy powders are respectively charged into plasma melting coating equipment, cladding process synchronously send Fe- Simultaneously synchronous argon gas protection, the melting and coating process parameter of plasma melting coating equipment are Ni base alloy powders：140~160A of electric current, nozzle Highly 10~14mm, 180~220g/min of powder feed rate, 4~6L/min of powder feeding throughput, 4~6L/min of big ion-gas flow, Small ion 4~6L/min of throughput, 160~180mm/min of sweep speed, the coating that width is 8~10mm is obtained.
- A kind of 5. method that wear-resisting toughness reinforcing coating is prepared on potassium steel surface according to claim 1, it is characterised in that： S4：It is heat-treated after cladding：Heat treatment is divided to solid solution and the step of timeliness two, and potassium steel matrix and coating are consolidated by high temperature carbon shirt-circuiting furnace Molten processing, for solid solution treatment process to be heated up with stove, temperature is 815~830 DEG C, and soaking time is water cooling after 1~1.5 hour； Ageing Treatment is carried out to potassium steel matrix and coating by Muffle furnace, aging technique is to enter stove to temperature, and temperature is 500~520 DEG C, Soaking time is 3~4 hours, air cooling.
- A kind of 6. method that wear-resisting toughness reinforcing coating is prepared on potassium steel surface according to claim 1, it is characterised in that： Fe-Ni base alloy powder ingredient percents are respectively：C≤0.03%, Ni：18.00%~19.00%, Co：8.50%~ 9.50%th, Mo：4.60%~5.20%, Si：3.40%~3.60%, Mn≤0.10%, Ti：0.50%~0.80%, Al： 0.05%~0.15%, P≤0.01%, S≤0.01%, surplus Fe.
- A kind of 7. method that wear-resisting toughness reinforcing coating is prepared on potassium steel surface according to claim 4, it is characterised in that：Institute The rated power for stating plasma melting coating equipment is 20KW, and specified cladding electric current is 220A.
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| CN110424005A (en) * | 2019-08-12 | 2019-11-08 | 青岛德创表面技术工程有限公司 | A kind of metalwork surface plasma cladding method easy to wear |
| CN111347043A (en) * | 2020-03-27 | 2020-06-30 | 南京理工大学 | Method for preparing heterogeneous material by plasma cladding |
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| CN114574781A (en) * | 2022-03-04 | 2022-06-03 | 江苏铭展特钢制造有限公司 | Wear-resistant stainless steel bar for rail transit and preparation method thereof |
| CN114686732A (en) * | 2022-04-19 | 2022-07-01 | 北航（四川）西部国际创新港科技有限公司 | High-temperature alloy repair material and preparation method thereof, additive remanufacturing method and remanufacturing service evaluation method of high-temperature alloy repair part |
| CN114686732B (en) * | 2022-04-19 | 2022-10-18 | 北航（四川）西部国际创新港科技有限公司 | High-temperature alloy repair material and preparation method thereof, and additive remanufacturing method and re-service evaluation method of high-temperature alloy repair part |
| CN115194410A (en) * | 2022-07-21 | 2022-10-18 | 中南大学 | Preparation method of high-strength long-life mining cutting pick library body |
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