CN103805934B - A kind of electric spark deposition strengthens the method on metal roller surface in conjunction with plasma cladding - Google Patents

A kind of electric spark deposition strengthens the method on metal roller surface in conjunction with plasma cladding Download PDF

Info

Publication number
CN103805934B
CN103805934B CN201410078306.9A CN201410078306A CN103805934B CN 103805934 B CN103805934 B CN 103805934B CN 201410078306 A CN201410078306 A CN 201410078306A CN 103805934 B CN103805934 B CN 103805934B
Authority
CN
China
Prior art keywords
cladding
plasma
electric spark
electrode
alloy
Prior art date
Application number
CN201410078306.9A
Other languages
Chinese (zh)
Other versions
CN103805934A (en
Inventor
王建升
吴金妹
李勇
李刚
阎镇威
唐明奇
冯在强
张玉新
Original Assignee
华北水利水电大学
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华北水利水电大学 filed Critical 华北水利水电大学
Priority to CN201410078306.9A priority Critical patent/CN103805934B/en
Publication of CN103805934A publication Critical patent/CN103805934A/en
Application granted granted Critical
Publication of CN103805934B publication Critical patent/CN103805934B/en

Links

Abstract

The present invention relates to the method strengthening metal roller surface with electric spark deposition in conjunction with plasma cladding, electric spark deposition is carried out in conjunction with plasma cladding process to metal roller, effectively can solve the hardness on the surface of roll, the performance such as wear resistance and shock-resistance, extend the problem in the work-ing life of metal roller, method is, with non-oxidizing plasma beam powdered alloy cladding on roller surface, form molten alloy coating, and then with electric spark deposition WC ceramic hard alloy on the basis of plasma cladding coating, form the compound coating of electric spark deposition in conjunction with plasma cladding, the present invention is simple and practical, electric spark deposition is combined firmly in conjunction with plasma cladding compound coating with matrix, coat-thickness is large, make roller surface hardness high, compactness is good, thermotolerance and wear resisting property good, long service life, namely compound coating has played that Fe-Ni Alloy Powder is cheap, coat-thickness is large, wear-resistant etch resistant properties is good, and hardness strength is high, antiwear heat resisting excellent performance.

Description

A kind of electric spark deposition strengthens the method on metal roller surface in conjunction with plasma cladding

Technical field

The present invention relates to metal roller, particularly a kind of electric spark deposition strengthens the method on metal roller surface in conjunction with plasma cladding.

Background technology

In iron and steel metallurgy industry, along with China has become production country maximum in the world, and steel rolling is a key areas in Iron and Steel Production, roll is the important tool of Steel Plant's rolled sheet material (steel band) or reinforcing bar, is also one of main consumption spare part in Rolling Production.The working conditions of roll is general very severe, and it will bear very complicated repeated load and impact, and the working conditions of rapid heat cycle, except requiring that it has except enough obdurabilities, also requires that it has higher wear resistance, thermotolerance and shock resistance.Therefore, improve the hardness of roller surface, the abrasion loss of work roll cooling can be reduced, adopt roller surface repair and intensify technology to improve roller surface hardness, become the main development direction and approach that extend roll campaign, the research application of this respect has made some progress.

Metal roller is generally formed through casting or forging by spheroidal graphite cast iron, high chromium nickel cast iron ning, carbon constructional quality steel, structural alloy steel, directly install and use after machine-shaping or install and use after Surface hardening treatment, the method for roller surface hardening mainly contains laser surface hardening, surperficial medium frequency quenching, resistance furnace integral heating quenching, differential quenching, surface overlaying high-abrasive material, thermal spraying on surface (comprising flame plating, plasma spraying, electric arc spraying and supersonic spray coating) wear heat-resistant material, Laser Clad Alloy Coatings etc.Laser surface hardening hardened layer and facility investment is large, maintenance cost is high; Surface medium frequency quenching, resistance furnace integral heating quenching, differential quenching method are applicable to structural carbon steel and structural alloy steel, but laser quenching hardened layer poor heat resistance, can not hot rolling be used for; Surface overlaying high-abrasive material cost is high, and there is the problem of surface working difficulty; Thermal spraying on surface pre-treatment generally adopts sandblasting, has environmental pollution, coating processing difficulties, and it is poor that coating is combined with matrix, and coating fatiguability peels off; Large-scale laser required for Laser Clad Alloy Coatings involves great expense, and laser melting coating bundle lap-joint defect is many, and cladding layer post-treatment is also more difficult.Therefore, how processing metal roller surface, strengthen its wear resistance, prevent from coming off, increase the service life, is technical problem urgently to be resolved hurrily.

Summary of the invention

For above-mentioned situation, for overcoming the defect of prior art, the object of the present invention is just to provide a kind of electric spark deposition strengthens metal roller surface method in conjunction with plasma cladding, electric spark deposition is carried out in conjunction with plasma cladding process to metal roller, effectively can solve the performances such as the hardness on the surface of roll, wear resistance and shock-resistance, extend the problem in the work-ing life of metal roller.

The technical scheme that the present invention solves is, with non-oxidizing plasma beam powdered alloy cladding on roller surface, form molten alloy coating, and then with electric spark deposition WC ceramic hard alloy on the basis of plasma cladding coating, form the compound coating of electric spark deposition in conjunction with plasma cladding, step is:

(1), prepare Fe-Ni Alloy Powder, this powdered alloy is by by weight percentage: Ni31 ~ 32%, Cr26 ~ 30%, C1 ~ 2%, Mo3 ~ 4.5%, B2.5 ~ 3%, Si3.5 ~ 5%, W2 ~ 4.5% and surplus are the powder of Fe, mix composition;

(2) plasma cladding wearable device (known common equipment, is adopted, as Qingdao HaiNa Plasma Science Co., Ltd, or Henan IGOOD Wear-resisting Technology Co., Ltd.) breaker roll surface cladding FeNi powders last layer, input supply voltage: 380V ± 10%, specified input capacity: 30KVA, output voltage: 75V, operating voltage: 10 ~ 30V, output rating 12-15KW, outward current: 300 ~ 600A, sweep velocity: 300 ~ 600mm/min, powder feeder air-flow: 0.65 ~ 0.75m 3/ h, powder sending quantity is 250-300g/min, ionized gas flow: 0.6 ~ 0.9m 3/ h, shield gas flow rate: 0.65 ~ 0.75m 3/ h, nozzle diameter 5mm, nozzle distance workpiece 28-32mm;

(3), cladding Fe-Ni Alloy Powder layer method is, the worktable opening plasma cladding wearable device runs, plasmatorch is made to move on to above roll treatment sites, open plasmatorch shielding gas argon gas and the power supply starting the arc, with the processing parameter provided in step (2), by the conventional practices of plasma cladding wearable device, plasma beam cladding is carried out on breaker roll surface, at high temperature 10000-16000 DEG C of direct current plasma line, the Fe-Ni Alloy Powder configured in step (1) is synchronously sent in the plasma beam of plasmatorch, roller surface forms the molten bath with beam diameter adjoining dimensions fast successively, powder is through rapid heating, in fusing or semi-molten state and molten pool metal mixing diffusion reaction, along with the movement of plasma beam, alloy pool quick solidification, formation and matrix are the plasma cladding alloy coat of metallurgical binding,

(4), after cladding alloy coat, close plasmatorch power supply and source of the gas, the alloy coat of breaker roll surface cladding carries out grinding or polishing, adopt electric spark deposition equipment (known common equipment again, DZS-4000 type electric spark deposition equipment as Beijing absolute sincerity letter power technology development company or agrotechnique institute of Chinese science research institute produce), by electrode materials WC or TiC Wimet electrode bar, as work positive electrode, the roll made it in argon gas and be deposited is done to produce spark discharge between negative electrode, directly utilize the energy of spark discharge, 10 -5~ 10 -6the position that in s, electrode contacts with roll (workpiece) reaches 10000 ~ 24500 DEG C, electrode materials is transferred to by the alloy coat of plasma cladding process surface, form electric spark deposition in conjunction with plasma cladding compound coating, electrode adopts self rotation mode, the method of clamping of electrode is mechanical system, and output rating is 3400W, and output voltage is 200V, discharge frequency is 1800HZ, and sedimentation rate is 2.5min/cm 2, shielding gas argon flow amount is 8 ~ 10L/min, and the extended length of electrode is 3mm, and metal roller matrix surface is 1-4mm through electric spark deposition in conjunction with coat-thickness after plasma cladding.

The present invention is simple and practical, and the electric spark deposition that the present invention is formed is combined firmly in conjunction with plasma cladding compound coating with matrix, coat-thickness greatly, make that roller surface hardness is high, compactness good, thermotolerance and wear resisting property good, long service life; Namely compound coating has played that Fe-Ni Alloy Powder is cheap, coat-thickness is large, wear-resistant etch resistant properties is good, and the hardness strength having played again electric spark deposition ceramic hard alloy is high, the Comprehensive Characteristics of antiwear heat resisting excellent performance.Roll carries out the very large in iron and steel metallurgical industry market potential of surface metallurgic process with electric spark deposition in conjunction with plasma cladding method.

Accompanying drawing explanation

Fig. 1 is metal roller structural representation (partly cut-away) of the present invention.

Fig. 2 is the sectional front view of metal roller of the present invention.

Embodiment

Below in conjunction with embodiment, the specific embodiment of the present invention is elaborated.

Embodiment 1

The present invention, in concrete enforcement, is realized by following steps:

(1), prepare Fe-Ni Alloy Powder, this powdered alloy is by by weight percentage: Ni31%, Cr28%, C1.5%, Mo4%, B2.8%, Si4%, W3% and surplus are the powder of Fe, mix composition, and granularity is 106 ~ 180mm;

(2) plasma cladding wearable device breaker roll surface cladding FeNi powders last layer, is adopted, input supply voltage: 380V ± 10%, specified input capacity: 30KVA, output voltage: 75V, operating voltage: 10 ~ 30V, output rating 12-15KW, outward current: 300 ~ 600A, sweep velocity: 300 ~ 600mm/min, powder feeder air-flow: 0.65 ~ 0.75m 3/ h, powder sending quantity is 250-300g/min, ionized gas flow: 0.6 ~ 0.9m 3/ h, shield gas flow rate: 0.65 ~ 0.75m 3/ h, nozzle diameter 5mm, nozzle distance workpiece 28-32mm;

(3), the method of cladding FeNi powders last layer 2 is, the worktable opening plasma cladding wearable device runs, plasmatorch is made to move on to above roll treatment sites, open plasmatorch shielding gas argon gas and the power supply starting the arc, with the processing parameter provided in step (2), by the conventional practices of plasma cladding wearable device, plasma beam cladding is carried out on breaker roll surface, at high temperature 10000-16000 DEG C of direct current plasma line, the Fe-Ni Alloy Powder configured in step (1) is synchronously sent in the plasma beam of plasmatorch, roller surface forms the molten bath with beam diameter adjoining dimensions fast successively, powder is through rapid heating, in fusing or semi-molten state and molten pool metal mixing diffusion reaction, along with the movement of plasma beam, alloy pool quick solidification, formation and matrix are the plasma cladding alloy coat of metallurgical binding,

(4), after cladding alloy coat, close plasmatorch power supply and source of the gas, the alloy coat of breaker roll surface cladding carries out grinding or polishing, adopt DZS-4000 type electric spark deposition equipment again, by electrode materials WC or TiC Wimet electrode bar, as work positive electrode, the roll making it in argon gas and be deposited is done to produce spark discharge between negative electrode, directly utilize the energy of spark discharge, 10 -5~ 10 -6the position that in s, electrode contacts with roll (workpiece) reaches 10000 ~ 24500 DEG C, electrode materials is transferred to by the alloy coat of plasma cladding process surface, form electric spark deposition in conjunction with plasma cladding compound coating 3, electrode adopts self rotation mode, the method of clamping of electrode is mechanical system, and output rating is 3400W, and output voltage is 200V, discharge frequency is 1800HZ, and sedimentation rate is 2.5min/cm 2, shielding gas argon flow amount is 8 ~ 10L/min, and the extended length of electrode is 3mm, and metal roller matrix surface is 1-4mm through electric spark deposition in conjunction with coat-thickness after plasma cladding.

Embodiment 2

In specific embodiment of the invention, described Fe-Ni Alloy Powder also can adopt weight percent meter: Ni32%, Cr26%, C2%, Mo3%, B3%, Si3.5%, W4.5% and surplus are the powder of Fe, mix composition, the other the same as in Example 1.

Embodiment 3

In specific embodiment of the invention, described Fe-Ni Alloy Powder also can adopt weight percent meter: Ni31%, Cr30%, C1%, Mo4.5%, B2.5%, Si5%, W2% and surplus are the powder of Fe, mix composition, the other the same as in Example 1.

The present invention is through experiment and test, and occur a large amount of nano amorphous microcrystal grain in coating, coating density is high; The metallurgical binding that in plasma cladding 16000 DEG C and electric spark deposition, the high temperature of 25000 DEG C makes compound coating and matrix create coating can not to come off; The surface hardness of coating can reach 1707.6HV ~ 2084.1HV, and the hardness of matrix is 352.1HV, and the hardness of the hardness ratio matrix of coating can improve 4-6 doubly; The wear resistance of compound coating can improve 2-4 doubly than the wear resistance of matrix.Compared with prior art, there is following outstanding Advantageous Effects:

1, the present invention adopts metal roller to be process cladding object; the high-bond, high rigidity, high compactness, high heat resistance etc. that can obtain high surfaces planeness in the position easy to wear of part or working position can freely control the alloy hardening layer of cladding; the thickness obtaining cladding wearing layer under argon shield state is 1 ~ 4mm; the hardness of cladding layer is HRC60 ~ 72, and wear resistance improves 2 ~ 4 times.Which improves the wear-and corrosion-resistant impact resistance of metal roller material surface, and then improve the work-ing life of roll.

2, the present invention makes in the electrical spark region, top layer of compound coating, define the high rigidity non-equilibrium alloy tissue contained, containing a large amount of nano microcrystalline particles, its hardening mechanism is nano-amorphous strengthening, crystallite strengthening, super saturated solid solution strengthening, high hardness compound dispersion-strengthened etc.

3, the present invention makes to have high rigidity, high strength, the powdered alloy of high-wearing feature and the cladding of ceramic hard alloy on the surface of metal roller material by the method for high-energy beam on metal roller, define the composite alloy layer of one deck and matrix metallurgical binding, wear-resistant, shock-resistant, high temperature resistant, corrosion-resistant.Because metallurgical bath single in cladding deposition process is on the roll mother metal of infinitely-great cold conditions, so the speed of cooling in molten bath is very large, with regard to whole roll, be still in normal temperature state or temperature rise lower, roll can not be annealed or thermal distortion.

4, on metal roller, the thickness of compound coating after cladding powdered alloy and ceramic deposition Wimet, quality are relevant with cladding deposition process parameters voltage, electric current, frequency and speed etc. with working efficiency, therefore by obtaining different technological effects to the regulable control of processing parameter.Method is simple, and easy to operate, good product quality, has very strong actual application value, and can be widely used in iron and steel metallurgical industry, economic and social benefit is huge.

Claims (2)

1. strengthen the method on metal roller surface with electric spark deposition in conjunction with plasma cladding, it is characterized in that, realized by following steps:
(1), prepare Fe-Ni Alloy Powder, this powdered alloy is by by weight percentage: Ni31%, Cr28%, C1.5%, Mo4%, B2.8%, Si4%, W3% and surplus are the powder of Fe, mix composition;
(2) plasma cladding wearable device breaker roll surface cladding FeNi powders last layer, is adopted, input supply voltage: 380V ± 10%, specified input capacity: 30KVA, output voltage: 75V, operating voltage: 10 ~ 30V, output rating 12-15KW, outward current: 300 ~ 600A, sweep velocity: 300 ~ 600mm/min, powder feeder air-flow: 0.65 ~ 0.75m 3/ h, powder sending quantity is 250-300g/min, ionized gas flow: 0.6 ~ 0.9m 3/ h, shield gas flow rate: 0.65 ~ 0.75m 3/ h, nozzle diameter 5mm, nozzle distance workpiece 28-32mm;
(3), the method of cladding FeNi powders last layer is, the worktable opening plasma cladding wearable device runs, plasmatorch is made to move on to above roll treatment sites, open plasmatorch shielding gas argon gas and the power supply starting the arc, with the processing parameter provided in step (2), by the conventional practices of plasma cladding wearable device, plasma beam cladding is carried out on breaker roll surface, at high temperature 10000-16000 DEG C of direct current plasma line, the Fe-Ni Alloy Powder configured in step (1) is synchronously sent in the plasma beam of plasmatorch, roller surface forms the molten bath with beam diameter adjoining dimensions fast successively, powder is through rapid heating, in fusing or semi-molten state and molten pool metal mixing diffusion reaction, along with the movement of plasma beam, alloy pool quick solidification, formation and matrix are the plasma cladding alloy coat of metallurgical binding,
(4), after cladding alloy coat, close plasmatorch power supply and source of the gas, the alloy coat of breaker roll surface cladding carries out grinding or polishing, adopt DZS-4000 type electric spark deposition equipment again, by electrode materials WC or TiC Wimet electrode bar, as work positive electrode, the roll making it in argon gas and be deposited is done to produce spark discharge between negative electrode, directly utilize the energy of spark discharge, 10 -5~ 10 -6in s, the position of electrode and roll contact reaches 10000 ~ 24500 DEG C, electrode materials is transferred to by the alloy coat of plasma cladding process surface, form electric spark deposition in conjunction with plasma cladding compound coating (3), electrode adopts self rotation mode, the method of clamping of electrode is mechanical system, and output rating is 3400W, and output voltage is 200V, discharge frequency is 1800Hz, and sedimentation rate is 2.5min/cm 2, shielding gas argon flow amount is 8 ~ 10L/min, and the extended length of electrode is 3mm, and metal roller matrix surface is 1-4mm through electric spark deposition in conjunction with coat-thickness after plasma cladding.
2. strengthen the method on metal roller surface with electric spark deposition in conjunction with plasma cladding, it is characterized in that, realized by following steps:
(1), prepare Fe-Ni Alloy Powder, this powdered alloy is by weight percentage: Ni31%, Cr30%, C1%, Mo4.5%, B2.5%, Si5%, W2% and surplus are the powder of Fe, mix composition;
(2) plasma cladding wearable device breaker roll surface cladding FeNi powders last layer, is adopted, input supply voltage: 380V ± 10%, specified input capacity: 30KVA, output voltage: 75V, operating voltage: 10 ~ 30V, output rating 12-15KW, outward current: 300 ~ 600A, sweep velocity: 300 ~ 600mm/min, powder feeder air-flow: 0.65 ~ 0.75m 3/ h, powder sending quantity is 250-300g/min, ionized gas flow: 0.6 ~ 0.9m 3/ h, shield gas flow rate: 0.65 ~ 0.75m 3/ h, nozzle diameter 5mm, nozzle distance workpiece 28-32mm;
(3), the method of cladding FeNi powders last layer is, the worktable opening plasma cladding wearable device runs, plasmatorch is made to move on to above roll treatment sites, open plasmatorch shielding gas argon gas and the power supply starting the arc, with the processing parameter provided in step (2), by the conventional practices of plasma cladding wearable device, plasma beam cladding is carried out on breaker roll surface, at high temperature 10000-16000 DEG C of direct current plasma line, the Fe-Ni Alloy Powder configured in step (1) is synchronously sent in the plasma beam of plasmatorch, roller surface forms the molten bath with beam diameter adjoining dimensions fast successively, powder is through rapid heating, in fusing or semi-molten state and molten pool metal mixing diffusion reaction, along with the movement of plasma beam, alloy pool quick solidification, formation and matrix are the plasma cladding alloy coat of metallurgical binding,
(4), after cladding alloy coat, close plasmatorch power supply and source of the gas, the alloy coat of breaker roll surface cladding carries out grinding or polishing, adopt DZS-4000 type electric spark deposition equipment again, by electrode materials WC or TiC Wimet electrode bar, as work positive electrode, the roll making it in argon gas and be deposited is done to produce spark discharge between negative electrode, directly utilize the energy of spark discharge, 10 -5~ 10 -6in s, the position of electrode and roll contact reaches 10000 ~ 24500 DEG C, electrode materials is transferred to by the alloy coat of plasma cladding process surface, form electric spark deposition in conjunction with plasma cladding compound coating, electrode adopts self rotation mode, the method of clamping of electrode is mechanical system, and output rating is 3400W, and output voltage is 200V, discharge frequency is 1800Hz, and sedimentation rate is 2.5min/cm 2, shielding gas argon flow amount is 8 ~ 10L/min, and the extended length of electrode is 3mm, and metal roller matrix surface is 1-4mm through electric spark deposition in conjunction with coat-thickness after plasma cladding.
CN201410078306.9A 2014-03-05 2014-03-05 A kind of electric spark deposition strengthens the method on metal roller surface in conjunction with plasma cladding CN103805934B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410078306.9A CN103805934B (en) 2014-03-05 2014-03-05 A kind of electric spark deposition strengthens the method on metal roller surface in conjunction with plasma cladding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410078306.9A CN103805934B (en) 2014-03-05 2014-03-05 A kind of electric spark deposition strengthens the method on metal roller surface in conjunction with plasma cladding

Publications (2)

Publication Number Publication Date
CN103805934A CN103805934A (en) 2014-05-21
CN103805934B true CN103805934B (en) 2016-01-06

Family

ID=50703310

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410078306.9A CN103805934B (en) 2014-03-05 2014-03-05 A kind of electric spark deposition strengthens the method on metal roller surface in conjunction with plasma cladding

Country Status (1)

Country Link
CN (1) CN103805934B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6550226B2 (en) * 2014-10-31 2019-07-24 トーカロ株式会社 Thermal spray powder, method of producing thermal spray coating, thermal spray coating, and roll
CN105598649A (en) * 2016-03-02 2016-05-25 华北水利水电大学 Method for strengthening surface of metal turbine runner through iron-based amorphous alloy stick
CN105598655A (en) * 2016-03-02 2016-05-25 华北水利水电大学 Method for strengthening surface of metal turbine runner blade through combination of electric spark deposition and welding
CN106002080A (en) * 2016-06-23 2016-10-12 中国人民解放军第五七九工厂 Method for repairing abraded end face of arrester
CN106238472B (en) * 2016-08-22 2018-01-05 合肥东方节能科技股份有限公司 A kind of rolling guide wheel compound based on cladding coating and preparation method thereof
CN106756742B (en) * 2016-12-05 2018-12-21 哈尔滨理工大学 A kind of electric spark deposition method for metal roller surface peening coating
CN107398478A (en) * 2017-06-29 2017-11-28 太仓市钧胜轧辊有限公司 A kind of high temperature resistant shock resistance composite roll
CN108048834A (en) * 2017-10-18 2018-05-18 宁国市开源电力耐磨材料有限公司 A kind of crust breaking hammer plasma melting coating process
CN107868956A (en) * 2017-11-21 2018-04-03 江苏雨燕模业科技有限公司 A kind of anticorrosive wear-resistant process on automobile die casting surface

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102212775A (en) * 2011-05-23 2011-10-12 华北水利水电学院 Method for depositing WC (wolfram carbide) hard coating material on surface of flow passage component for electric desulfurization
CN102230176A (en) * 2011-07-27 2011-11-02 王建升 Surface plasma cladding method of metal turbine runner

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102212775A (en) * 2011-05-23 2011-10-12 华北水利水电学院 Method for depositing WC (wolfram carbide) hard coating material on surface of flow passage component for electric desulfurization
CN102230176A (en) * 2011-07-27 2011-11-02 王建升 Surface plasma cladding method of metal turbine runner

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
电火花沉积与激光熔覆复合涂层的组织与性能;王建升 等;《材料热处理学报》;20121130;第33卷(第增刊II期);第156,159页 *
等离子熔覆快速成形铁基合金的设计及其组织和性能评价;向永华 等;《中国表面工程》;20100831;第23卷(第4期);第40页 *

Also Published As

Publication number Publication date
CN103805934A (en) 2014-05-21

Similar Documents

Publication Publication Date Title
CN101298654B (en) Ceramic-phase-containing iron-based amorphous nanocrystalline composite coating and preparation thereof
Liu et al. Microstructure and wear behavior of (Cr, Fe) 7C3 reinforced composite coating produced by plasma transferred arc weld-surfacing process
CN102465294B (en) Method for carrying out laser-cladding on high-hardness nickel-based alloy material in large area
CN101338427B (en) Laser fusing and coating process for wear resistant and etch-resistant coating of hydraulic support column cylinder and piston rod
CN101519778A (en) Laser cladding method for strengthening surface of piercing point
Wang et al. Hot corrosion behaviour of low Al NiCoCrAlY cladded coatings reinforced by nano-particles on a Ni-base super alloy
CN102990058B (en) Oxide particle reinforced laser-clad high abrasion resistance cobalt-base alloy powder and preparation method thereof
CN102453903B (en) Method for preparing heat-resistant antifriction alloy coating on surface of continuous casting roller
CN102191495A (en) Method for quickly preparing metal ceramic coating through laser induced composite fusioncast
CN101109026A (en) Laser fusion welding method of abrasion-proof heat-proof composite coating on surface of tuyeres of blast furnace port sleeve
CN101994114A (en) Laser cladding wear-resisting and heat fatigue-resisting alloy coating process for manufacturing hot rolled seamless steel tube rolling mill retained mandrel
CN102990060B (en) Silicide particle reinforced laser-clad high abrasion resistance nickel-base alloy powder and preparation method thereof
Yan et al. Microstructure and tribological properties of laser-clad Ni–Cr/TiB2 composite coatings on copper with the addition of CaF2
CN101994112A (en) Laser cladding process for abrasion-resistant anticorrosion coating of water turbine unit runner
CN102453897B (en) Method for manufacturing tungsten carbide hard alloy wear-resistant coating of rod and wire hot press roll
CN1962942A (en) Process for in-situ formation of TiC/metal composite cladding layer controlled by plasma
CN103143708B (en) Preparation method of hard alloy preform and method for preparing composite wear-resistant part by using hard alloy preform
CN101914767A (en) Preparation process and device of nano-particle reinforced bimetal composite
CN1215740C (en) Laminar flow arc plasma jet material surface processing method
CN101555580B (en) Electrospark hardening method of surface of metal roll
CN100443246C (en) Filling metallic particles for overlay welding and its preparation method
CN102851597A (en) Anti-abrasion sink roller shaft sleeve and manufacturing method thereof
JP4653721B2 (en) Ni-based self-fluxing alloy powder for thermal spraying, method for producing the same, and self-fluxing alloy spray coating obtained using the powder
CN105200363B (en) A kind of preparation method of ceramics/Fe-based amorphous composite coating
CN103302268A (en) Preparation method of ceramic-metal compound wear-resistant material

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20160106

Termination date: 20170305