CN103042338B - Preparation process of reaction nitrogen arc cladding wear-resistant coating based on part remanufacturing and repairing - Google Patents
Preparation process of reaction nitrogen arc cladding wear-resistant coating based on part remanufacturing and repairing Download PDFInfo
- Publication number
- CN103042338B CN103042338B CN201110309131.4A CN201110309131A CN103042338B CN 103042338 B CN103042338 B CN 103042338B CN 201110309131 A CN201110309131 A CN 201110309131A CN 103042338 B CN103042338 B CN 103042338B
- Authority
- CN
- China
- Prior art keywords
- coating
- mass fraction
- less
- nitrogen
- cover plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 68
- 238000000576 coating method Methods 0.000 title claims abstract description 62
- 239000011248 coating agent Substances 0.000 title claims abstract description 60
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 32
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 12
- 238000005253 cladding Methods 0.000 title claims abstract description 8
- 238000002360 preparation method Methods 0.000 title claims abstract description 5
- 238000000034 method Methods 0.000 claims abstract description 23
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000002002 slurry Substances 0.000 claims abstract description 15
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000007689 inspection Methods 0.000 claims abstract description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000001035 drying Methods 0.000 claims abstract description 12
- 238000003466 welding Methods 0.000 claims abstract description 12
- 235000011837 pasties Nutrition 0.000 claims abstract description 10
- 239000011230 binding agent Substances 0.000 claims abstract description 6
- 239000007789 gas Substances 0.000 claims abstract description 5
- 238000000498 ball milling Methods 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 14
- 239000010936 titanium Substances 0.000 claims description 14
- 229910052719 titanium Inorganic materials 0.000 claims description 13
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 12
- 238000005516 engineering process Methods 0.000 claims description 12
- 238000005422 blasting Methods 0.000 claims description 9
- 229920000058 polyacrylate Polymers 0.000 claims description 8
- 239000004576 sand Substances 0.000 claims description 8
- 230000007547 defect Effects 0.000 claims description 7
- 238000000227 grinding Methods 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 6
- CYKMNKXPYXUVPR-UHFFFAOYSA-N [C].[Ti] Chemical compound [C].[Ti] CYKMNKXPYXUVPR-UHFFFAOYSA-N 0.000 claims description 5
- 238000005299 abrasion Methods 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 239000011812 mixed powder Substances 0.000 claims description 5
- 239000000243 solution Substances 0.000 claims description 5
- 229910001208 Crucible steel Inorganic materials 0.000 claims description 4
- 208000037656 Respiratory Sounds Diseases 0.000 claims description 4
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000002932 luster Substances 0.000 claims description 4
- 230000035515 penetration Effects 0.000 claims description 4
- 239000002893 slag Substances 0.000 claims description 4
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 4
- 229910052721 tungsten Inorganic materials 0.000 claims description 4
- 239000010937 tungsten Substances 0.000 claims description 4
- 239000003153 chemical reaction reagent Substances 0.000 claims description 3
- 238000010790 dilution Methods 0.000 claims description 3
- 239000012895 dilution Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 2
- 239000011159 matrix material Substances 0.000 abstract description 7
- 238000002844 melting Methods 0.000 abstract description 4
- 230000008018 melting Effects 0.000 abstract description 4
- 238000002156 mixing Methods 0.000 abstract description 4
- 239000002994 raw material Substances 0.000 abstract description 3
- 239000010439 graphite Substances 0.000 abstract description 2
- 229910002804 graphite Inorganic materials 0.000 abstract description 2
- 238000003754 machining Methods 0.000 abstract description 2
- 230000001681 protective effect Effects 0.000 abstract description 2
- 238000007865 diluting Methods 0.000 abstract 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract 1
- 238000004321 preservation Methods 0.000 abstract 1
- 238000010583 slow cooling Methods 0.000 abstract 1
- 239000000843 powder Substances 0.000 description 7
- 239000012071 phase Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000005524 ceramic coating Methods 0.000 description 2
- IXQWNVPHFNLUGD-UHFFFAOYSA-N iron titanium Chemical compound [Ti].[Fe] IXQWNVPHFNLUGD-UHFFFAOYSA-N 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 239000003607 modifier Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000005240 physical vapour deposition Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001476 alcoholic effect Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000003064 anti-oxidating effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000007792 gaseous phase Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010884 ion-beam technique Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002905 metal composite material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000009418 renovation Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Abstract
The invention relates to a preparation process of a reaction nitrogen arc cladding wear-resistant coating based on part remanufacturing repair, and belongs to the field of part remanufacturing engineering. The process comprises the following steps: determining the repair size of the part, and checking whether the part is damaged or not; carrying out oil removal and rust removal treatment on the surface to be repaired of the part; uniformly mixing raw materials of titanium powder and graphite by using a ball mill, diluting a binder by using alcohol to prepare pasty slurry, coating the pasty slurry on the surface to be repaired by adopting a brush coating method, and drying the surface to be repaired according to a certain specification; selecting a TIG welding machine, taking industrial pure nitrogen as protective gas, carrying out direct current positive connection, and carrying out lap joint and melting; after heat preservation and slow cooling, the quality of the repair layer is checked by a nondestructive inspection method; and machining the repairing layer to meet the size requirement and the surface quality requirement of the part. The invention has the characteristics of excellent wear resistance of the repair layer, simple process equipment and low cost, and is suitable for remanufacturing repair and technical upgrading of parts with worn surfaces and no damage inside a matrix.
Description
Technical field
The present invention provides a kind of and remanufactures the reaction nitrogen arc fusing and coating wear-resistant coating of reparation based on part and prepare work
Skill, belongs to part re-manufacturing technology field, it is adaptable to making again of surface abrasion and intrinsic silicon not damaged part
Produce and repair multiple and technology upgrading.
Technical background
Along with modern science and technology and the fast development of industry, all trades and professions surface property requirement to material
Improve constantly, the most often high temperature, high pressure, at a high speed, heavy duty, corrosion mal-condition under be on active service
Large-scale, key equipment parts.The fault of engineering goods is made by the surface failure of individual parts often
Become, and fretting wear is the principal mode that material surface lost efficacy.Particles reiforced metal-base composition coating because of
The wearability of its high specific strength, high ratio modulus and excellence, oneself becomes the important method of metal material surface strengthening.
Wherein, form hard particles by reacting to each other between additional storeroom or additional material with matrix and strengthen phase
Wear-resistant coating synthesis reaction method thereof, concurrently forms with coating owing to strengthening, and it is thin that enhancing has granule mutually
Little, stable performance, be evenly distributed, advantage that interfacial cleanliness is well combined with matrix, be current preparative
One of main method of energy good wear coating.
Remanufacture and refer to electronic product uses high-tech carry out specialized reparation or upgrading, make it extensive
Answer as new product or be better than the mass manufacture process of new product.It is by using phase that part remanufactures reparation
Cleaning technique, recovery technique and the process for treating surface answered, makes waste and old parts meet or exceed the property of new product
Can, recover or extend the service life of product.Part remanufactures reparation and takes full advantage of in waste and old parts and accumulate
The secondary resource contained, has saved and has manufactured the energy needed for new product and raw material, reduced maintenance cost, and
And there is the feature of maintenance easy to use, simple, convenient.
TiN and TiC titaniferous ceramic coating is with its high rigidity, high-wearing feature and good chemical stability
Become the coating material with huge applications prospect.But TiC coating is the most crisp, in use easily avalanche；And TiN
Coating antioxidation under the high temperature conditions, antiwear property aspect are not enough, limit it and develop further.TiCN
It is a kind of function admirable, broad-spectrum non-oxidic material, is also the coating material of a kind of excellent performance,
It is the solid solution of TiN and TiC, has both characteristic and advantage concurrently.Compared with TiC, the plasticity of TiCN,
Wearability is more excellent；Compared with TiN, TiCN has more preferable antisticking abrasion and abrasive wear resistance and lower
Friction factor.At present, research worker is sunk with regard to chemical gaseous phase deposition, physical vapour deposition (PVD), Assisted by Ion Beam
Long-pending, plasma-deposited, laser melting coating is prepared the technique of TiCN coating, mechanism and performance and has been carried out grinding in a large number
Study carefully, and achieve great successes.But above-mentioned TiCN coating production generally needs ultrahigh vacuum and high pressure,
And equipment price is expensive, big energy-consuming, cost are high, complex process, thus limits to remanufacture at part and repair
In Fu more universal.
Summary of the invention
Present invention aims to the problems referred to above, it is provided that a kind of low cost, high efficiency, reliable zero
Part remanufactures renovation technique, it is adaptable to surface abrasion and intrinsic silicon not damaged part remanufacture reparation and skill
Art is upgraded.
The purpose of the present invention is realized by following measures, uses tradition T work G welding machine, uses straight polarity direct current,
With high pure nitrogen as protective gas, with commercial titanium iron powder and graphite powder as raw material, utilize nitrogen arc melting and coating technique,
TiCN grain reinforced metal ceramic wear-resistant coating is synthesized at metal parts surface in situ.Technical scheme
As follows:
(1) component test: inspection parts depreciation amount, selects wear extent δ=0.2～4.5mm by nondestructive inspection
Inside not damaged part as remanufacturing reparation object.
(2) ball milling mixes powder: purity is not less than 98% titanium-iron powder and carbon mass fraction be not less than 98% stone
Powdered ink presses the mixing of titanium carbon mol ratio 1:1 ball mill, and ball-milling medium is ethanol.
(3) modulation slurry: mixed for above-mentioned ball milling powder ethanol is diluted polyacrylate organic adhesive
Agent furnishing pasty slurry, in slurry, polyacrylate organic binder bond is 1% with the mass percent of mixed-powder.
(4) part pretreatment: it is 11 that part is placed in pH value, temperature is to boil in the NaOH solution of 85 DEG C to wash
30min, removes piece surface and penetrates into the greasy dirt of inside parts；Use cast steel sand that surface to be repaired is done
Blasting treatment is until there is metallic luster；Clean through grit blasted surfaces with alcoholic solution and use hot blast drying.
(5) preset coating: use spread coating piece surface after treatment uniformly brush thickness d=δ+0.3～
The pasty slurry of 0.5mm, is put into drying baker afterwards and dries until anhydrous being only divided into.
(6) nitrogen arc cladding: carry out overlapping scorification to above-mentioned preset coating with tig arc welding machine under nitrogen protection.
Scorification process conditions are: straight polarity direct current, tungsten electrode diameter 1～5mm, arc length 1～3mm, welding current 50～
500A, nitrogen flow 10～15L/min, nitrogen gas purity 99.5%～99.99, speed of welding 1～4mm/s, burn
Molten passage Duplication 30%～50%.
(7) coating post processing: the part after above-mentioned nitrogen arc cladding is placed in the heat-treatment furnace of 600～700 DEG C,
Room temperature is cooled to the furnace after power-off.
(8) coating inspection: whether there is crackle, pore, slag inclusion, non-penetration, not without defect detecting test coating
Seam defect.To coating is scrapped containing the part of described defect or is rejected after coating repetition step (3)～
(6), till flaw detection is without described defect.
(9) coating post-treatment: according to accessory size and surface quality requirements, part flawless to coating enters
Row machining.
The present invention has a positive effect: the reaction nitrogen arc remanufacturing reparation based on part that the present invention provides
Fusing and coating wear-resistant coating preparation technology, it is not necessary to pre-synthesis TiCN powder body, but utilize TiCN to form element and exist
It is directly synthesized TiCN grain reinforced metal ceramic coating by reaction during nitrogen arc scorification.In cladding process,
Nitrogen arc energy is by precoating titanium valve and the metal parts matrix melts of graphite powder or melts as low melting point liquid alloy
Make part nitrogen ionize, the nitrogen of ionization and the nitrogen not being ionized and fusing or melted titanium and graphite simultaneously
Reaction generates titanium carbonitride hard phase, is formed with titanium carbonitride as hard phase after cooled and solidified, part base solid gold
Belong to the carbon titanium nitride particle for matrix phase (Binder Phase) and strengthen metal composite wear-resistant coating.The present invention has method
Simply, rehabilitation cost is low, repair layer wearability is good, the feature of applied range, has expanded answering of TIG weldering
With, remanufacture reparation for part and provide new technology.
Accompanying drawing explanation
Fig. 1 is the reaction nitrogen arc fusing and coating wear-resistant coating process chart that part remanufactures reparation, and Fig. 2 is anti-
Answer the polishing scratch comparison diagram of nitrogen arc fusing and coating wear-resistant coating and 45# steel (modifier treatment).
Detailed description of the invention
Embodiment 1:
The present invention uses and above-mentioned remanufacture the reaction nitrogen arc fusing and coating wear-resistant coating of reparation based on part and prepare work
Skill, remanufactures reparation to the optical axis necked part that a material is 45# steel.Fig. 1 is shown in technological process, specifically
Processing step is as follows:
(1) journal wear a size of 0.45mm is recorded with indicating snap gauge, in X-ray nondestructive inspection finds axle
Portion is not damaged.
(2) by the lowest to titanium valve (Heng Fa titanium valve factory of Ningjin County produces, and chemical composition is shown in Table 1) and carbon mass fraction
Graphite powder (production of Tianjin great Mao chemical reagent factory) in 98 presses titanium carbon mol ratio 1:1 (mass ratio 47.9:12)
Mixing with DQM type planetary ball mill, ball-milling medium is the ethanol of concentration 95%, and ratio of grinding media to material 5:1, ball milling turns
Speed 120r/min, Ball-milling Time 12h.
Table 1 titanium valve chemical composition
(3) with the ethanol dilution polyacrylate of concentration 95% as binding agent, by mixed for above-mentioned ball milling
Powder furnishing pasty slurry.During modulation, polyacrylate and mixed-powder 1% are chosen by mass percentage.
(4) axle journal to be repaired being placed in pH value is 11, and temperature is to boil in the NaOH solution of 85 DEG C to wash 30min.
(5) journal surface to be repaired is carried out dry blasting until metallic luster occurs, the sand material choosing of dry blasting
Use cast steel sand.
(6) rinse sand blasted surface with the ethanol of concentration 95% and use hot blast drying.
(7) use spread coating pasty slurry uniformly to be brushed in the journal surface after above-mentioned process, brush
Thickness 0.8mm, is constantly compacted brush applied coating during brushing.
(8) drying baker that the optical axis to be repaired having brushed slurry inserts 60 DEG C is dried until without moisture.
(9) with Panasonic YC-500WX type tig arc welding machine, the pulp layer after above-mentioned drying is entered under nitrogen protection
Row overlap joint scorification.Scorification process conditions are: straight polarity direct current, tungsten electrode diameter 1.6mm, arc length 3mm, weldering
Connect electric current 120A, nitrogen flow 12L/min, nitrogen gas purity 99.9, speed of welding 3mm/s, scorification passage weight
Folded rate 40% scholar 50%.
(10) axle after above-mentioned nitrogen arc cladding is placed in the heat-treatment furnace of 650 DEG C, furnace cooling after power-off
To room temperature.
(11) check coating surface quality with penetrant inspection and x-ray inspection respectively, do not find crackle, gas
Hole, slag inclusion, without penetration, without seam defect exist.
(12) according to axle journal technology requirement, coating is carried out grinding.
Knowable to accompanying drawing 2, coating local has the mill hole in obvious plastic flow district, and Mo Keng position has carefully
And shallow cut.The 45# steel matrix polishing scratch of modifier treatment is the parallel deep ditch dug with a plow through whole rubbing surface, and
Ditch dug with a plow does not block phenomenon.
It follows that the present invention provide remanufacture the reaction nitrogen arc fusing and coating wear-resistant coating of reparation based on part and have excellent
Different wearability.
Embodiment 2:
The present invention uses and above-mentioned remanufacture the reaction nitrogen arc fusing and coating wear-resistant coating of reparation based on part and prepare work
Skill, remanufactures reparation to the cover plate that a material is Q235A.Fig. 1, concrete technology step are shown in technological process
As follows:
(1) recording parts depreciation a size of 2.54mm with indicating snap gauge, X-ray nondestructive inspection finds axle
Internal not damage.
(2) by titanium valve (Heng Fa titanium valve factory of Ningjin County produce, chemical composition is shown in Table 1) with carbon mass fraction is not
Graphite powder (production of Tianjin great Mao chemical reagent factory) less than 98 presses titanium carbon mol ratio 1:1 (mass ratio 47.9:12)
Mixing with DQM type planetary ball mill, ball-milling medium is the ethanol of concentration 95%, ratio of grinding media to material 5:1, ball milling
Rotating speed 120r/min, Ball-milling Time 12h.
(3) with the ethanol dilution polyacrylate of concentration 95% as binding agent, by mixed for above-mentioned ball milling
Powder furnishing pasty slurry.During modulation, polyacrylate and mixed-powder 1% are chosen by mass percentage.
(4) cover plate to be repaired being placed in pH value is 11, and temperature is to boil in the NaOH solution of 85 DEG C to wash
30min。
(5) cover plate wear surface to be repaired is carried out dry blasting until metallic luster occurs, dry blasting
Cast steel sand selected by sand material.
(6) wash through the surface of blasting treatment with the alcohol detecting of concentration 95% and use hot blast drying.
(7) use spread coating surface after the treatment to brush pasty slurry, brush thickness 3mm, brush
Time be constantly compacted brush applied coating.
(8) drying baker that the cover plate having brushed slurry is placed in 60 DEG C is dried until without moisture.
(9) with Panasonic YC-500WX type tig arc welding machine, the pulp layer after above-mentioned drying is entered under nitrogen protection
Row overlap joint scorification.Scorification process conditions are: straight polarity direct current, tungsten electrode diameter 3.2mm, arc length 2mm, weldering
Connect electric current 300A, nitrogen flow 15L/min, nitrogen gas purity 99.9, speed of welding 2mm/s, scorification passage weight
Folded rate 40% scholar 50%.
(10) cover plate after above-mentioned nitrogen arc cladding is placed in the heat-treatment furnace of 650 DEG C, cold with stove after power-off
But to room temperature.
(11) check coating surface quality with penetrant inspection and x-ray inspection respectively, do not find crackle, gas
Hole, slag inclusion, without penetration, without seam defect exist.
(12) according to cover plate technology requirement, coating is carried out grinding.
Cover plate installation after repairing runs, and result shows, coating is well combined with matrix, and coating is without stripping
Fall phenomenon, and coating abrasion performance is excellent.
Claims (1)
1. a reaction nitrogen arc fusing and coating wear-resistant coating preparation technology for reparation is remanufactured based on part,
Concrete technology step is as follows:
(1) recording cover plate abrasion size with indicating snap gauge is 2.54mm, and X-ray nondestructive inspection finds lid
Intralaminar part does not damage；
(2) titanium valve and carbon mass fraction are not less than the graphite powder of 98% by titanium carbon mol ratio 1: 1 namely
Mass ratio is that 47.9: 12 use DQM type planetary ball mills mix, and ball-milling medium is concentration 95%
Ethanol, ratio of grinding media to material 5: 1, rotational speed of ball-mill 120r/min, Ball-milling Time 12h；
Wherein the chemical composition of titanium valve is: the mass fraction of Ti is for more than 98.0%, and the mass fraction of Fe is
Less than 0.40%, the mass fraction of Si is less than 0.06%, and the mass fraction of Cl is less than 0.09%, C
Mass fraction be less than 0.06%, the mass fraction of N is less than 0.08%, and the mass fraction of O is for being less than
The mass fraction of 0.80%, H is less than 0.08%, and the mass fraction of Mg is less than 0.12%, the matter of Mn
Amount mark is less than 0.06%, and, the manufacturer of titanium valve is Heng Fa titanium valve factory of Ningjin County；
Graphite powder is that Tianjin great Mao chemical reagent factory produces；
(3) with the ethanol dilution polyacrylate of concentration 95% as binding agent, above-mentioned ball mill ball milling is mixed
Powder furnishing pasty slurry after conjunction, during modulation, polyacrylate accounts for the mass percent of mixed-powder and is
1%；
(4) cover plate to be repaired is placed in pH value be 11, temperature be the NaOH solution of 85 DEG C to be boiled wash
30min；
(5) cover plate wear surface to be repaired is carried out dry blasting until metallic luster occurs, the sand of dry blasting
Cast steel sand selected by material；
(6) rinse through the surface of blasting treatment with the ethanol of concentration 95% and use hot blast drying；
(7) use spread coating surface after the treatment to brush pasty slurry, brush thickness 3mm, brush
Time be constantly compacted brush applied coating；
(8) drying baker that the cover plate having brushed slurry is placed in 60 DEG C is dried until without moisture；
(9) use Panasonic YC-500WX type tig arc welding machine to the pulp layer after above-mentioned drying under nitrogen protection
Carrying out overlapping scorification, scorification process conditions are: straight polarity direct current, tungsten electrode diameter 3.2mm, arc length
2mm, welding current 300A, nitrogen flow 15L/min, nitrogen gas purity 99.9%, speed of welding
2mm/s, scorification passage Duplication 40% ± 5%；
(10) cover plate after above-mentioned nitrogen arc cladding is placed in the heat-treatment furnace of 650 DEG C, furnace cooling after power-off
To room temperature；
(11) check coating surface quality with penetrant inspection and x-ray inspection respectively, do not find crackle, gas
Hole, slag inclusion, without penetration, without seam defect exist；
(12) according to cover plate technology requirement, coating is carried out grinding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110309131.4A CN103042338B (en) | 2011-10-12 | Preparation process of reaction nitrogen arc cladding wear-resistant coating based on part remanufacturing and repairing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110309131.4A CN103042338B (en) | 2011-10-12 | Preparation process of reaction nitrogen arc cladding wear-resistant coating based on part remanufacturing and repairing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103042338A CN103042338A (en) | 2013-04-17 |
| CN103042338B true CN103042338B (en) | 2016-12-14 |
Family
ID=
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1891860A (en) * | 2005-09-06 | 2007-01-10 | 中国矿业大学(北京) | Part surface coated layer technological method |
| EP2062997A2 (en) * | 2007-11-23 | 2009-05-27 | MTU Aero Engines GmbH | Device for coating components |
| CN101590558A (en) * | 2009-07-03 | 2009-12-02 | 河北农业大学 | Preparation method of reaction nitrogen arc surfacing titanium carbonitride reinforced titanium-based composite coating |
| CN101591779A (en) * | 2009-07-03 | 2009-12-02 | 河北农业大学 | Preparation method of reaction nitrogen arc cladding titanium carbonitride base metal ceramic coating |
| CN101954549A (en) * | 2010-09-19 | 2011-01-26 | 山东建筑大学 | Argon arc cladding iron-based powder |
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1891860A (en) * | 2005-09-06 | 2007-01-10 | 中国矿业大学(北京) | Part surface coated layer technological method |
| EP2062997A2 (en) * | 2007-11-23 | 2009-05-27 | MTU Aero Engines GmbH | Device for coating components |
| CN101590558A (en) * | 2009-07-03 | 2009-12-02 | 河北农业大学 | Preparation method of reaction nitrogen arc surfacing titanium carbonitride reinforced titanium-based composite coating |
| CN101591779A (en) * | 2009-07-03 | 2009-12-02 | 河北农业大学 | Preparation method of reaction nitrogen arc cladding titanium carbonitride base metal ceramic coating |
| CN101954549A (en) * | 2010-09-19 | 2011-01-26 | 山东建筑大学 | Argon arc cladding iron-based powder |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108559996B (en) | A kind of hydraulic support movable post outer surface laser melting coating restorative procedure | |
| CN105861882B (en) | A kind of laser in combination manufacture special metals powder and its application in hard seal ball valve | |
| CN103481010B (en) | A kind of full-automatic online cold welding pattching roll squeezer technique | |
| CN102352508B (en) | Iron-based alloy powder for laser cladding of TRT (Blast Furnace Top Pressure Recovery Turbine Unit) parts | |
| CN104532233B (en) | Rotor axle position laser melting coating restorative procedure | |
| CN108707894B (en) | Powder for laser cladding self-lubricating wear-resistant cobalt-based alloy and process method | |
| CN105436665A (en) | Surfacing reconstructed layer of large hot-rolled supporting roll Cr4 and method for repairing roll | |
| CN102619477A (en) | Wear and corrosion resistant iron-based alloy laser-cladding petroleum drill stem joint | |
| CN101947713B (en) | A kind of cement roller press roll surface wear-resisting restorative procedure | |
| CN113832461B (en) | Nickel-based alloy powder for laser cladding, ceramic particle reinforced composite powder and application | |
| CN106914612B (en) | Graphene-chromium titanium aluminium composite material preparation method and its application on cutter | |
| CN110257826A (en) | Grain roll bearing position laser cladding method and laser melting coating alloy powder | |
| CN102618870B (en) | Wear-resistant and abrasion-resistant mould and preparation process for forming protective coating on working surface of mould substrate | |
| CN102061436A (en) | Re-manufacturing method of engineering machinery axle and coating of engineering machinery axle | |
| CN111945154A (en) | Iron-based alloy powder for laser cladding and laser cladding method | |
| CN101532121B (en) | Technology for processing metal surface by arc spray melting | |
| CN112063934A (en) | Laser cladding iron-based alloy powder for repairing steam turbine rotor shaft neck, and preparation and application thereof | |
| CN106435567A (en) | Laser cladding restoration method for compressor bearing shell | |
| CN104195550A (en) | Preparation method of WC-NiSiB laser cladding material | |
| CN102152020B (en) | Coating powder for submerged arc surfacing of low-carbon steel and application method thereof | |
| CN110241411A (en) | Repair the ultrahigh speed laser cladding powder and restorative procedure of impaired water filling combination valve | |
| CN109848514A (en) | A kind of steel substrate surface built-up welding multicomponent alloy powder coating is to enhance the method for abrasion resistance and hardness | |
| CN106378511B (en) | A kind of bead-welding technology of abrasive roller | |
| CN101570845B (en) | Method for nitridizing surfaces of titanium and titanium alloy | |
| CN108950535B (en) | Preparation method of high-frequency induction assisted self-propagating titanium carbide-based composite coating |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220907 Address after: 073000 Shuangtian industrial base, Dingzhou City, Baoding City, Hebei Province Patentee after: HEBEI SHUANGTIAN MACHINERY MANUFACTURING Co.,Ltd. Address before: 071001 School of Mechanical and Electrical Engineering, Hebei Agricultural University, Baoding City, Hebei Province Patentee before: HEIBEI AGRICULTURAL UNIVERSITY |