CN101519778A - Laser cladding method for strengthening surface of piercing point - Google Patents

Laser cladding method for strengthening surface of piercing point Download PDF

Info

Publication number
CN101519778A
CN101519778A CN 200810033921 CN200810033921A CN101519778A CN 101519778 A CN101519778 A CN 101519778A CN 200810033921 CN200810033921 CN 200810033921 CN 200810033921 A CN200810033921 A CN 200810033921A CN 101519778 A CN101519778 A CN 101519778A
Authority
CN
Grant status
Application
Patent type
Prior art keywords
laser
coating
wc
surface
cladding
Prior art date
Application number
CN 200810033921
Other languages
Chinese (zh)
Other versions
CN101519778B (en )
Inventor
何宜柱
晖 张
陆明和
顾之毅
颜永根
Original Assignee
宝山钢铁股份有限公司;安徽工业大学
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

Links

Abstract

A laser cladding method for strengthening the surface of a piercing point includes the following steps of: (1) prefabricating WC/Co-base cladding powder; (2) pre-processing the surface of a piercing point workpiece, and cleaning up stain and rust; preheating for 2 to 5 hours at a temperature between 400 DEG C and 600 DEG C; (3) cladding the prefabricated composite powder fed in the way of reverse synchronization or coaxially in multiple steps by a CO2 laser; simultaneously, carrying out synchronous inert gas protection on the laser-cladding area; and (4) subsequent processing. The laser cladding method adopts laser to prepare a WC ceramic particle-strengthened Co-base composite coating on the surface of the piercing point, and the coating is metallically combined with the matrix, so the binding force between the coating and the matrix is enhanced; the maximum thickness of the coating can reach a few millimeters; and as the surfaces of WC particles are coated with Ni, the absorption of laser energy by the WC can be reduced, so that the burnout rate of the WC can be reduced in a laser melting pool. The distribution of the WC particles is uniform in the coating, the rigidity of the coating is high, consequently, the service performance of the piercing point can be improved, and the service life can be prolonged.

Description

一种穿孔顶头表面强化的激光熔覆方法技术领域本发明涉及材料表面强化技术领域,特别涉及一种穿孔顶头表面强化的激光熔覆方法。 TECHNICAL FIELD The laser cladding the surface of an apertured plug-reinforced material of the present invention relates to surface hardening technology, and particularly relates to a method for laser cladding the surface of the perforated plug strengthened. 背景技术穿孔顶头是生产不锈钢、耐热钢、轴承钢和其它特种合金钢管的关键工具,其使用寿命的高低对产品的产量、质量、生产成本都有直接影响。 BACKGROUND piercing plug is the production of stainless steel, a key tool for heat-resistant steel, bearing steel and other special alloy steel tubes, have a direct impact on the level of its service life on yield, quality and production costs. 顶头工作时,温度在100(TC左右,并承受着巨大的轴向压力、径向压力、旋转摩擦力、骤冷骤热的热应力等复合应力,使用中易发生鼻部塌腔、变形、粘钢和开裂等失效。因此,要求其具有良好的耐磨性、抗高温氧化性和耐激冷激热性,以满足恶劣的生产使用条件。目前,国际上有关提高顶头使用性能的方法围绕下述方向己经形成多项专利:1. 选用不同的穿孔顶头材料。美国专利2007020137公开了一种含Cr、 WC的镍基合金制备穿孔顶头,由于顶头以Ni为基体,性能较好,但价格昂贵。目前,属内制备顶头的材料一般选用合金钢,中国专利1112165采用Fe 基Cr-Ni-Mo系合金材料,通过提高基体合金含量改善顶头使用性能。中国专利公开号1243170公开了一种在铁基合金中添加5 %稀土元素提高穿孔顶头性能的方法,稀土可净化晶界,降低S、 P含量。但是,由于以上专利 When the working head, a temperature of about 100 (TC, and under tremendous pressure axial, radial pressure, rotational friction, cold and hot composite stress of thermal stress and the like, the use of nasal cavity prone to collapse, deformation, bonding steel and cracking and other failure. Accordingly, required to have good wear resistance, high-temperature oxidation resistance and spalling resistance, in the harsh conditions of production. at present, the internationally relevant methods used to improve the performance around the plug direction has been formed following patents: 1. use of different piercing plug U.S. Patent 2007020137 discloses a material containing Cr, WC nickel-based alloy prepared piercing point, since the plug Ni as a matrix, better performance, but expensive. currently, the plug material within the genus is generally used in the preparation of steel, Chinese Patent No. 1112165 uses the Fe-based Cr-Ni-Mo-based alloy material, the plug performance by increasing the alloy content of the matrix is ​​improved. China Patent Publication No. 1243170 discloses a 5% iron-based rare-earth element alloy piercing point method for improving performance, rare earth can purify the grain boundaries, reducing S, P content. However, the above patents 采用Fe 基体材料,在顶头恶劣的工作环境中,使用寿命仍有待进一步提高。2. 采用各种涂层制备技术。中国专利公开号1459514采用表面原子束沉积,包括电子束蒸发、磁控溅射等多种PVD技术在顶头表面沉积耐磨耐热MCrAlR薄膜,中国专利公开号1990905公开了一种通过高能离子注入在钢基体中制备WC梯度层技术,基体表面可形成WC合金梯度层。以上技术形成的薄膜致密性较好,具有一定的强度和抗氧化性能。但制造需在真空中进行, 费用较高,且与基体的结合强度不足,特别是涂层有效厚度属于微米级,难以承受顶头较长的工作时间,使用过程中有害杂质会深入涂层内部使之发生腐蚀而损坏,或在使用早期即出现局部的撕落。 Using an Fe-based material, in the poor working environment head, the service life remains to be further improved .2 prepared using a variety of coating techniques. Chinese Patent Publication No. 1,459,514 uses a surface atom beam deposition including e-beam evaporation, magnetron sputtering other wear resistant PVD-depositing a thin film on the plug surface MCrAlR, China Patent Publication No. 1990905 discloses a method by high-energy ion implantation technology, the surface of the base body of WC gradient layer may be formed steel substrate WC alloy graded layer above technique preferably formed of a dense film having a certain strength and oxidation resistance, but need to be manufactured in a vacuum, high cost, and less than the binding strength of the matrix, in particular, the effective thickness of the coating belonging to the micron level, bear plug longer working hours, during use of harmful impurities depth within the coating so that corrosion damage, or at an early stage of use i.e. a partial tear off.

综上所述,己有的穿孔顶头改性技术,在制备成本和使用性能方面仍难以满足实际使用的需要,生产中急需一种表面耐磨和抗热性能远高于铁基合金,有效工作层与基体结合牢固,具有一定尺寸厚度,成本较低的穿孔顶头制备方法。 In summary, the piercing plug has some modification technology in the manufacture and use of cost performance is still difficult to meet the practical use, the production need for a wear resistant surface and heat resistance is much higher than the iron-based alloy, the effective work substrate with a solid layer, having a thickness of a certain size, low cost method for preparing piercing point.

发明内容 SUMMARY

针对现有技术存在的不足,本发明的目的在于提供一种穿孔顶头表面强化的激光熔覆方法,使用高功率C02激光器在穿孔顶头表面快速熔覆制 For deficiencies in the prior art, an object of the present invention is to provide a method of laser cladding perforated plug surface hardening, a high power C02 laser cladding made fast on the surface of the perforated plug

备具有一定厚度的WC颗粒弥散增强Co基复合涂层。 Preparation of WC grains having a thickness of Co-based dispersion reinforced composite coating. 涂层与基体形成牢固的冶金结合,具有耐高温氧化、高硬度、耐磨损和抗热裂性能,可显著提高顶头的使用寿命,并具有制备成本低,可用于报废顶头局部修复等优点。 Coating and the substrate to form a strong metallurgical bonding, high temperature oxidation, high hardness, wear resistance and thermal crack resistance, can significantly improve the life of the plug, and has low manufacturing costs, can be used for local repair plug scrap advantages.

为达到上述目的,本发明的技术方案是, To achieve the above object, the technical solution of the present invention,

一种穿孔顶头表面强化的激光熔覆方法,其包括如下步骤: A laser cladding method for surface hardening of the perforated plug, comprising the steps of:

1) 预制WC/Co基熔覆粉末,基体材料为Co基合金粉末,陶瓷增强相为WC,复合粉末质量百分比为:Co基基体材料75-90%, WC增强相10-25%; 1) pre-WC / Co based alloy powder, the matrix material is a Co-based alloy powder, the ceramic reinforcing phase is WC, composite powder mass percent: Co-based matrix material 75-90%, WC reinforcing phase 10-25%;

2) 顶头工件送入C02激光器前的表面预处理,清污、铁锈,获得清洁的表面;对顶头预热,预热温度.400〜600。 2) plug into the workpiece surface pretreatment of the C02 laser, purge, rust, to obtain a clean surface; plug for preheating, the preheating temperature .400~600. C,预热2〜5小时,以降低基材与熔覆涂层之间的温度梯度; C, 2 ~ 5 hours preheated to reduce the temperature gradient between the substrate and cladding coating;

3) C02激光器采用逆向同步式或同轴式送粉方式,多道次熔覆已预制的复合粉末;并同时对激光熔覆处理区域进行同步的惰性气体保护; 3) C02 reverse laser using a synchronous manner or coaxial powder feed, multiple passes have been prefabricated composite cladding powder; while the laser cladding processing region synchronization inert gas;

4) 后续处理。 4) subsequent processing.

进一步,所述的陶瓷增强相WC经过包覆处理,所述的包覆处理为用镍为包覆材料,包覆后WC合金颗粒成分质量百分比为:60-90%WC,10-40%包覆材料。 Further, the WC ceramic reinforcing phase through coating treatment, the coating is treated with a nickel cladding material, component mass percentage of particles of WC alloy after coating: 60-90% WC, 10-40% packet cover material.

步骤(2)在顶头工作面上涂刷磷化锌涂料,进行工作面黑化处理,以增强顶头工作面的抗锈抗蚀能力。 Step (2) on the work head brushing the surface coating of zinc phosphide, face blackening treatment, to enhance the ability to resist rust plug face.

步骤(3)所述的激光熔覆工艺参数:激光功率l-5kW,激光扫描速度100-500mm/min,激光光斑直径2-6mm,激光多道次搭接率20-60%;所述的惰性保护气体为氩气或氮气;激光熔覆能得到厚度可控的钴基合金涂层。 Step (3) The laser cladding parameters: laser power l-5kW, laser scanning speed 100-500mm / min, laser spot diameter 2-6mm, multi-pass laser overlapping ratio of 20-60%; the protective inert gas is argon or nitrogen; laser cladding controlled thickness can be obtained cobalt-based alloy coating.

步骤(3)激光熔覆能得到的钴基合金涂层厚度为0.5〜3mm。 Step (3) the thickness of cobalt-based alloy coating can be obtained for the laser cladding 0.5~3mm. 步骤(4)所述的后续处理为穿孔顶头表面经激光多道次熔覆钴基涂层后冷却,在热处理炉中对样品进行去应力退火,消除激光熔覆涂层的热应力,退火温度400〜600。 Thermal stress (4) of the subsequent processing steps of piercing the plug surface after multiple pass laser cladding cobalt based coating is cooled, the samples were stress relief annealing in a heat treatment furnace, laser cladding coating eliminating annealing temperature 400~600. C,时间8〜12小时,出炉后熔覆层表面经打磨、抛光。 C, time of 8~12 hours, the surface cladding layer was released after grinding, polishing.

本发明具有以下优点和效果: The present invention has the following advantages and effects:

1. 使用高功率的C02气体激光器在穿孔顶头表面制备WC陶瓷颗粒增强Co基复合涂层,涂层与基体呈冶金结合,提高了涂层与基体的结合力,解决了涂层易脱落的问题,且涂层厚度可控,最大可达到几个毫米,有利于结构涂层性能的发挥。 1. C02 high power gas laser piercing head surface prepared WC Co based composite reinforced ceramic particles with a coating metallurgical bond with the substrate generally improves the adhesion of the coating and the substrate to solve the problem of shedding coating and controllable coating thickness, can be up to several millimeters, coating properties beneficial structure play.

2. WC颗粒表面包覆Ni, 一方面可以减少WC对激光能量的吸收,降低其在激光熔池的烧损率;另一方面,表面包覆的Ni与涂层Co基基体的材料热物性十分相似、润湿性较好,有利于WC颗粒与钴基合金基体之间形成冶金结合,提高WC颗粒在涂层中分布均匀性,赋予涂层高的硬度和耐磨性能。 2. Ni particle surface coated WC, WC one can reduce absorption of the laser energy, reduce the rate of burning of the molten pool; on the other hand, the thermal properties of the surface coating material of Ni and Co-based matrix coating very similar, good wettability, favors the formation of a metallurgical bond between the WC particles and cobalt-based alloy matrix, to improve the uniformity of distribution of WC particles in the coating layer, imparting high coating hardness and wear resistance.

3. 激光熔覆WC颗粒增强Co基合金涂层与其它技术制备的涂层相比,具有更优良的耐磨性能和抗高温氧化性能,且激光熔覆涂层具有细小的晶粒组织,可进一步提高涂层的硬度,提高顶头的使用性能,延长使用寿命。 The laser cladding WC particle reinforced coatings compared with other coating techniques for preparing the Co-based alloy having more excellent wear resistance and high temperature oxidation resistance, and the laser cladding coating having a fine grain structure, can be to further improve the hardness of the coating, improve the performance of the plug, extend the service life.

4. 本发明顶头工作面硬度可达到55HRC以上,可用于穿孔顶头表面高性能强化,也可用于报废顶头局部的修复,节约了生产成本,对冶金行业可产生较好的经济和社会效益。 4. The plug of the present invention can be achieved face hardness of 55HRC or more, the surface may be used to plug perforations reinforced high performance, can also be used to repair localized scrapped head, production cost savings, better metallurgical industry can produce economic and social benefits.

附图说明 BRIEF DESCRIPTION

图1为本发明WC颗粒在激光熔覆Co50复合合金涂层分布示意图;图2为本发明WC颗粒与涂层基体形成冶金结合示意图。 In the schematic distribution of laser cladding alloy coating Co50 composite WC particles of the present invention in FIG. 1; FIG. 2 and WC particles coated substrate metallurgically bonded form a schematic diagram of the present invention. .具体实施方式 .Detailed ways

实施例1 Example 1

穿孔顶头表面强化激光熔覆方法,工艺包括如下歩骤:(1)试样预处理:清除顶头工作面、黑化处理,然后对该顶头在500 Laser cladding perforation head surface hardening method, ho process comprising the steps of: (1) Sample pretreatment: Clear head face, blackening treatment, then at 500 the head

T预热3.5小时;(2)熔覆粉末预制:按质量比将基体Co 50和Ni包WC陶瓷增强相两种粉末配制含15 wt.% WC的混合粉末,在研磨皿里经充分研磨后烘干;(3)激光熔覆工艺:激光器的功率调整为2.4kW,激光扫描速度为220mm/min,激光光斑直径为5mm,激光扫描道次搭接率为40%,同时在激光器作用下将预制好的复合合金粉末采用逆向同歩式送粉方式熔覆在该顶头工作面上;(4)后续处理:将激光熔覆后的穿孔顶头置于热处理炉中进行50(TC去应力退火10小时,随后出炉,表面打磨后即可使用。 T preheating 3.5 hours; (2) prefabricated cladding powder: mass formulated with both powders containing 15 wt ratio of base and Ni + Co 50 to enhance mixing ceramic powder WC% WC, dried sufficiently after grinding in the grinding dish. drying; (3) a laser cladding process: power of the laser is adjusted to 2.4 kW, the laser scanning speed / min, laser spot diameter of 220mm 5mm, overlapping laser scanning pass rate of 40%, while under the action of the laser prefabricated composite alloy powder is employed with a reverse feed mode ho type cladding powder work surface on the plug; (4) follow-up treatment: after laser cladding piercing point located in a heating furnace for 50 (TC 10 stress-relief annealing hours, then baked, can be used after surface grinding.

实施例2 Example 2

穿孔顶头表面强化激光熔覆方法,工艺包括如下步骤:(l)试样预处理:清除顶头工作面、黑化处理,然后对该顶头在400 Laser cladding perforation head surface hardening method, the process comprising the steps of: (L) Sample pretreatment: Clear head face, blackening treatment, then at 400 the head

. C预热5小时;(2)熔覆粉末预制:按质量比将基体Co50和Ni包WC陶瓷增强相两种粉末配制含10wt.%WC的混合粉末,在研磨皿里经充分研 C preheated for 5 hours; (2) prefabricated cladding powder: mass ratio with the two powder formulations containing a matrix and a WC - Ni Co50 reinforced ceramic powder mixture of 10wt% WC, was thoroughly ground in the grinding dish.

磨后烘干;(3)激光熔覆工艺:激光器的功率调整为1.8kW,激光扫描速度为300mm/min,激光光斑直径为5mm,激光扫描道次搭接率为50%,同时在激光器作用下将预制好的复合合金粉末采用逆向同步式送粉方式熔覆在该顶头工作面上;(4)后续处理:将激光熔覆后的穿孔顶头置于热处理炉中进行400"C去应力退火12小时,随后出炉,表面打磨后即可使用。 After grinding drying; (3) a laser cladding process: 1.8kW of laser power adjustment, a laser scanning speed of 300mm / min, laser spot diameter is 5mm, the laser scanning pass 50% overlap, the laser action at the same time under the prefabricated composite alloy powders using a reverse synchronous manner cladding powder feeding plug the working surface; (4) follow-up treatment: after laser cladding piercing point located in a heating furnace for 400 "C stress-relief annealing 12 hours, and then baked, can be used after surface grinding.

实施例3 Example 3

穿孔顶头表面强化激光熔覆方法,工艺包括如下步骤:(l)试样预处理:清除顶头工作面、黑化处理,然后对该顶头在600 Laser cladding perforation head surface hardening method, the process comprising the steps of: (L) Sample pretreatment: Clear head face, blackening treatment, then at 600 the head

t:预热3小时;(2)熔覆粉末预制:按质量比将基体Co50和M包WC陶瓷增强相两种粉末配制含20wt,。 T: 3 hours preheating; (2) prefabricated cladding powder: mass phase containing two powder formulation than 20wt base body Co50 and M ,. reinforced ceramic package WC WC的混合粉末,在研磨皿里经充分研 Mixing WC powder, where the polishing dish after full RESEARCH

6磨后烘干;(3)激光熔覆工艺:激光器的功率调整为3.0kW,激光扫描 6 grinding after drying; (3) a laser cladding process: the laser power adjustment is 3.0kW, a laser scanning

速度为150mm/min,激光光斑直径为4 mm,激光扫描道次搭接率为30%,同时在激光器作用下将预制好的复合合金粉末采用逆向同步式送粉方式熔覆在该顶头工作面上;(4)后续处理:将激光熔覆后的穿孔顶头置于热处理炉中进行60(TC去应力退火8小时,随后出炉,表面打磨后即可使用。 Speed ​​/ min, laser spot diameter 150mm was 4 mm, the overlap of the laser scanning pass 30%, while under the action of the laser prefabricated composite alloy powders using a reverse synchronous manner cladding powder feeding face the plug on; (4) follow-up treatment: after laser cladding piercing point located in a heating furnace for 60 (TC stress relieving for 8 hours and then baked, it can be used after surface grinding.

从图1可以看出,本发明WC颗粒在激光熔覆Co50复合合金涂层中不仅含量比较高而且分布非常均匀;而图2显示出因WC颗粒表面有少量的微熔而与基体间产生冶金结合并产生二次结晶WC,可有效提高涂层本身的耐磨性能和抗热裂性能。 As can be seen in FIG. 1, WC particles of the present invention in the laser cladding composite Co50 alloy coating only in high content and very uniform distribution; FIG. 2 shows the particle surface due to a small amount of WC microfusion generated between the substrate and the metallurgy secondary crystallization and binding WC, can effectively improve the abrasion resistance of the coating itself and thermal cracking performance.

综上所述,本发明采用激光在穿孔顶头表面制备WC陶瓷颗粒增强Co基复合涂层,涂层与基体呈冶金结合,提高了涂层与基体的结合力;涂层厚度最大可达到几个毫米,有利于结构涂层性能的发挥;WC颗粒表面包覆Ni,可以减少WC对激光能量的吸收,降低其在激光熔池的烧损率。 In summary, the present invention is a laser perforation in the plug surface of WC Co based composite reinforced ceramic particles with a coating metallurgically bonded to the substrate substantially improves the adhesion of the coating and the substrate; maximum coating thickness of up to several mm, coating properties beneficial structure play; WC particle surfaces coated with Ni, WC can be reduced absorption of laser energy, reduce the burning rate of the laser molten pool. WC颗粒在涂层中分布均匀,具有高的涂层硬度,提高顶头的使用性能,延长使用寿命。 WC particles are distributed uniformly in the coating, the coating having a high hardness, improve the performance of the plug, extend the service life.

Claims (6)

  1. 1. 一种穿孔顶头表面强化的激光熔覆方法,其包括如下步骤:1)预制WC/Co基熔覆粉末,基体材料为Co基合金粉末,陶瓷增强相为WC,复合粉末质量百分比为:Co基基体材料75-90%,WC增强相10-25%;2)顶头工件送入CO2激光器前的表面预处理,清污、铁锈,对顶头预热,预热温度400~600℃,预热2~5小时;3)CO2激光器采用逆向同步式或同轴式送粉方式,多道次熔覆已预制的复合粉末;并同时对激光熔覆处理区域进行同步的惰性气体保护;4)后续处理。 Laser cladding method for surface hardening of the piercing plug, which comprises the following steps: 1) pre-WC / Co based alloy powder, the matrix material is a Co-based alloy powder, the ceramic reinforcing phase is WC, the mass percentage of composite powder: Co group materials 75-90%, WC reinforcing phase 10-25%; 2) plug into the workpiece surface preparation before CO2 laser, purge, rust, head of the preheating, the preheating temperature of 400 ~ 600 ℃, pre heat 2 to 5 hours; 3) CO2 laser using a synchronous or reverse coaxial powder feeding mode, has multiple passes prefabricated composite cladding powder; while the laser cladding processing region synchronization inert gas; 4) subsequent processing.
  2. 2. 如权利要求1所述的穿孔顶头表面强化的激光熔覆方法,其特征是, 所述的陶瓷增强相WC经过包覆处理,所述的包覆处理为用镍为包覆材料,包覆后WC合金颗粒成分质量百分比为:60-90%WC, 10-40%包覆材料。 2. The method of laser cladding the surface of the piercing plug as claimed in claim 1, reinforced, characterized in that the ceramic reinforcing phase WC through coating treatment, the coating is treated with a nickel cladding material, the package mass percentage composition after coating the alloy particles of WC: 60-90% WC, 10-40% coating material.
  3. 3. 如权利要求1所述的穿孔顶头表面强化的激光熔覆方法,其特征是, 步骤(2)在顶头工作面上涂刷磷化锌涂料。 Laser cladding the surface of the piercing plug 3. The method as claimed in claim 1 reinforced, wherein, in step (2) of zinc phosphate priming paint head work surface.
  4. 4. 如权利要求1所述的穿孔顶头表面强化的激光熔覆方法,其特征是, 步骤(3)所述的激光熔覆工艺参数:激光功率l-5kW,激光扫描速度100-500mm/min,激光光斑直径2-6mm,激光多道次搭接率20-60%; 所述的惰性保护气体为氩气或氮气;激光熔覆能得到厚度可控的钴基合金涂层。 4. The method of laser cladding the surface of the piercing plug as claimed in claim 1, reinforced, wherein, in step (3) of the laser cladding process parameters: laser power l-5kW, laser scanning speed 100-500mm / min , laser spot diameter 2-6mm, multi-pass laser overlapping ratio of 20-60%; the protection of the inert gas is argon or nitrogen; laser cladding controlled thickness can be obtained cobalt-based alloy coating.
  5. 5. 如权利要求1所述的穿孔顶头表面强化的激光熔覆方法,其特征是, 步骤(3)激光熔覆能得到的钴基合金涂层厚度为0.5〜3mm。 5. The method of laser cladding the surface of the piercing point of the reinforcing claim 1, wherein the cobalt-based alloy coating thickness in step (3) can be obtained for the laser cladding 0.5~3mm.
  6. 6. 如权利要求1所述的穿孔顶头表面强化的激光熔覆方法,其特征是, 步骤(4)所述的后续处理为穿孔顶头表面经激光多道次熔覆钴基涂层后冷却,在热处理炉中对样品进行去应力退火,退火温度400〜600°C, 时间8〜12小时,出炉后熔覆层表面经打磨、抛光。 6. The method of laser cladding the surface of the piercing plug as claimed in claim 1 reinforced, characterized in that the subsequent process step (4) is the piercing plug surface after multiple pass laser cladding cobalt-based coating is cooled, the samples were stress relief annealing, an annealing temperature of 400~600 ° C, time of 8~12 hours in a heat treatment furnace, the rear surface of the cladding layer was baked grinding, polishing.
CN 200810033921 2008-02-26 2008-02-26 Laser cladding method for strengthening surface of piercing point CN101519778B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200810033921 CN101519778B (en) 2008-02-26 2008-02-26 Laser cladding method for strengthening surface of piercing point

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200810033921 CN101519778B (en) 2008-02-26 2008-02-26 Laser cladding method for strengthening surface of piercing point

Publications (2)

Publication Number Publication Date
CN101519778A true true CN101519778A (en) 2009-09-02
CN101519778B CN101519778B (en) 2011-07-20

Family

ID=41080569

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200810033921 CN101519778B (en) 2008-02-26 2008-02-26 Laser cladding method for strengthening surface of piercing point

Country Status (1)

Country Link
CN (1) CN101519778B (en)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102002707A (en) * 2010-11-25 2011-04-06 秦皇岛洪川实业有限公司 Laser repairing method of damaged finishing roller
CN102094198A (en) * 2011-03-25 2011-06-15 天津市汇利通金属表面技术有限公司 Alloy laser-cladding method for surface of helical casing in screw pump
CN102284777A (en) * 2010-06-17 2011-12-21 上海宝钢设备检修有限公司 Piercer plug seamless steel reinforced surfacing method
CN102383125A (en) * 2011-11-04 2012-03-21 九江学院 Laser-cladding MoB/CoCr metal ceramic coating and preparation method thereof
CN102465294A (en) * 2010-11-17 2012-05-23 杭州中科新松光电有限公司 Method for carrying out laser-cladding on high-hardness nickel-based alloy material in large area
CN102589790A (en) * 2012-02-22 2012-07-18 河北省送变电公司 Pressure detection device for hydraulic press
CN102618707A (en) * 2012-04-12 2012-08-01 郭亚辉 Tool for metal thermal deformation process and production method
CN102732878A (en) * 2012-07-18 2012-10-17 丹阳宏图激光科技有限公司 Laser strengthening process of piercing point
CN102943266A (en) * 2012-12-12 2013-02-27 江苏新亚特钢锻造有限公司 High abrasion-proof laser cladding cobalt-base alloy powder and preparation method thereof
CN102990059A (en) * 2012-12-19 2013-03-27 江苏新亚特钢锻造有限公司 Silicide particle reinforced laser-clad high abrasion resistance cobalt-base alloy powder and preparation method thereof
CN103266295A (en) * 2013-05-23 2013-08-28 广州有色金属研究院 Laser surfacing modification method for thermal barrier coating
CN103290403A (en) * 2012-02-24 2013-09-11 沈阳新松机器人自动化股份有限公司 Method for preparing high-content WC (Wolfram Carbide) enhanced alloy powder coating
CN103498148A (en) * 2013-09-05 2014-01-08 江苏翌煜能源科技发展有限公司 Laser cladding method for surface of piercing plug
CN103572282A (en) * 2012-07-18 2014-02-12 蒋春花 Laser cladding method of piercing plug surface
CN103572280A (en) * 2012-07-18 2014-02-12 蒋春花 Piercing plug laser strengthening process dispensing with preheating before laser cladding
CN103769794A (en) * 2014-01-07 2014-05-07 烟台开发区蓝鲸金属修复有限公司 Strengthening method of surface of piercing plug of seamless steel tube rolling mill
CN104726861A (en) * 2015-04-08 2015-06-24 安徽工业大学 WC-Mo-Co composite coating high in abrasion resistance
CN104846365A (en) * 2015-05-09 2015-08-19 芜湖鼎瀚再制造技术有限公司 Laser heat treatment process of steel ring
CN105239070A (en) * 2015-10-30 2016-01-13 南京理工大学 Method for repairing and strengthening surface of hot work die
CN107096798A (en) * 2017-04-25 2017-08-29 河海大学 High-temperature-resistant seamless steel tube piercing plug

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1265015C (en) 2002-05-21 2006-07-19 四川大学 Method of preparing high-temperature wear resistant coating
CN1418983A (en) 2002-12-10 2003-05-21 长春工业大学 Medium carbon steel and medium carbon alloy steel surface laser melting coating method

Cited By (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102284777A (en) * 2010-06-17 2011-12-21 上海宝钢设备检修有限公司 Piercer plug seamless steel reinforced surfacing method
CN102465294A (en) * 2010-11-17 2012-05-23 杭州中科新松光电有限公司 Method for carrying out laser-cladding on high-hardness nickel-based alloy material in large area
CN102465294B (en) 2010-11-17 2013-08-14 杭州中科新松光电有限公司 Method for carrying out laser-cladding on high-hardness nickel-based alloy material in large area
CN102002707A (en) * 2010-11-25 2011-04-06 秦皇岛洪川实业有限公司 Laser repairing method of damaged finishing roller
CN102094198A (en) * 2011-03-25 2011-06-15 天津市汇利通金属表面技术有限公司 Alloy laser-cladding method for surface of helical casing in screw pump
CN102094198B (en) 2011-03-25 2012-05-23 天津市汇利通金属表面技术有限公司 Alloy laser-cladding method for surface of helical casing in screw pump
CN102383125A (en) * 2011-11-04 2012-03-21 九江学院 Laser-cladding MoB/CoCr metal ceramic coating and preparation method thereof
CN102589790A (en) * 2012-02-22 2012-07-18 河北省送变电公司 Pressure detection device for hydraulic press
CN102589790B (en) 2012-02-22 2013-11-20 河北省送变电公司 Pressure detection device for hydraulic press
CN103290403A (en) * 2012-02-24 2013-09-11 沈阳新松机器人自动化股份有限公司 Method for preparing high-content WC (Wolfram Carbide) enhanced alloy powder coating
CN103290403B (en) * 2012-02-24 2016-01-13 沈阳新松机器人自动化股份有限公司 A method for enhancing high content wc alloy powder coatings prepared
CN102618707A (en) * 2012-04-12 2012-08-01 郭亚辉 Tool for metal thermal deformation process and production method
CN103572283B (en) * 2012-07-18 2015-09-23 重庆广播电视大学 Hardening process of laser piercing plug
CN103572281B (en) * 2012-07-18 2015-09-30 重庆广播电视大学 After annealing laser cladding without the need of piercing point of the laser hardening process
CN103572280B (en) * 2012-07-18 2015-09-30 重庆广播电视大学 Piercing plug before laser cladding laser hardening process without preheating
CN102732878B (en) 2012-07-18 2013-12-18 丹阳宏图激光科技有限公司 Laser strengthening process of piercing point
CN103572282B (en) * 2012-07-18 2015-09-30 重庆广播电视大学 The method of laser cladding an apertured plug surface
CN102732878A (en) * 2012-07-18 2012-10-17 丹阳宏图激光科技有限公司 Laser strengthening process of piercing point
CN103572280A (en) * 2012-07-18 2014-02-12 蒋春花 Piercing plug laser strengthening process dispensing with preheating before laser cladding
CN103572283A (en) * 2012-07-18 2014-02-12 蒋春花 Laser strengthening process of piercing plug
CN103572281A (en) * 2012-07-18 2014-02-12 蒋春花 Piercing plug laser strengthening process dispensing with annealing after laser cladding
CN103572282A (en) * 2012-07-18 2014-02-12 蒋春花 Laser cladding method of piercing plug surface
CN102943266B (en) 2012-12-12 2014-08-20 江苏新亚特钢锻造有限公司 High abrasion-proof laser cladding cobalt-base alloy powder and preparation method thereof
CN102943266A (en) * 2012-12-12 2013-02-27 江苏新亚特钢锻造有限公司 High abrasion-proof laser cladding cobalt-base alloy powder and preparation method thereof
CN102990059B (en) 2012-12-19 2014-10-08 江苏新亚特钢锻造有限公司 Silicide laser cladding high wear particle reinforced cobalt-based alloy powder and preparation method
CN102990059A (en) * 2012-12-19 2013-03-27 江苏新亚特钢锻造有限公司 Silicide particle reinforced laser-clad high abrasion resistance cobalt-base alloy powder and preparation method thereof
CN103266295A (en) * 2013-05-23 2013-08-28 广州有色金属研究院 Laser surfacing modification method for thermal barrier coating
CN103498148B (en) * 2013-09-05 2016-06-15 江苏翌煜能源科技发展有限公司 A method for laser cladding the surface of the perforated plug for
CN103498148A (en) * 2013-09-05 2014-01-08 江苏翌煜能源科技发展有限公司 Laser cladding method for surface of piercing plug
CN103769794A (en) * 2014-01-07 2014-05-07 烟台开发区蓝鲸金属修复有限公司 Strengthening method of surface of piercing plug of seamless steel tube rolling mill
CN104726861A (en) * 2015-04-08 2015-06-24 安徽工业大学 WC-Mo-Co composite coating high in abrasion resistance
CN104846365A (en) * 2015-05-09 2015-08-19 芜湖鼎瀚再制造技术有限公司 Laser heat treatment process of steel ring
CN105239070A (en) * 2015-10-30 2016-01-13 南京理工大学 Method for repairing and strengthening surface of hot work die
CN107096798A (en) * 2017-04-25 2017-08-29 河海大学 High-temperature-resistant seamless steel tube piercing plug

Also Published As

Publication number Publication date Type
CN101519778B (en) 2011-07-20 grant

Similar Documents

Publication Publication Date Title
CN101249510A (en) Repaired roller and method for repairing roller
Guu et al. Improvement of fatigue life of electrical discharge machined AISI D2 tool steel by TiN coating
CN1854317A (en) Powdery alloy processing material in site by movable laser smelt-coating process
CN1498984A (en) Multi-element alloy coat
CN102168210A (en) Laser cladding technological method and alloy material for laser cladding
CN101818342A (en) Method and device for preparing working layer of metallurgical hot roll by laser direct deposition
CN101139709A (en) Method for acquiring highly-adaptive abrasion-proof titanium-based composite material on titanium alloy surface
CN101012561A (en) Aluminum alloy surface strengthening method using laser melting and coating
CN1431336A (en) Method for preparing nickel based self fluxing alloy coat on substrate of copper or copper alloy
CN101153376A (en) Method for manufacturing high-vanadium, high-cobalt high speed steel
CN1932082A (en) Fast laser depositing process of preparing antinwear heat resistant composite coating on surface of crystallizer
CN101338428A (en) Strengthen process for pick head by laser fusing and coating wear-resistant coating
CN101358344A (en) Repair method of backup roll surface of steckel mill and special repair powder used thereon
CN101532133A (en) Copper-base crystallizer surface laser cladding method
CN101994114A (en) Laser cladding wear-resisting and heat fatigue-resisting alloy coating process for manufacturing hot rolled seamless steel tube rolling mill retained mandrel
CN101109026A (en) Laser fusion welding method of abrasion-proof heat-proof composite coating on surface of tuyeres of blast furnace port sleeve
CN102465294A (en) Method for carrying out laser-cladding on high-hardness nickel-based alloy material in large area
CN102226279A (en) Method for preparing titanium diboride and titanium carbide enhanced iron-based wear resistant composite paint
CN101818343A (en) Laser cladding method of composite coating containing spherical tungsten carbide
CN102021564A (en) Anticorrosive coating nickel-based alloy powder for laser cladding
CN1962942A (en) Process for in-situ formation of TiC/metal composite cladding layer controlled by plasma
US20090282949A1 (en) Toughened and Corrosion- and Wear-Resistant Composite Structures and Fabrication Methods Thereof
CN102619477A (en) Wear and corrosion resistant iron-based alloy laser-cladding petroleum drill stem joint
CN101338426A (en) Laser ceramic alloying strengthen process for pick head of coal winning machine and coal cutter
CN101555580A (en) Electrospark hardening method of surface of metal roll

Legal Events

Date Code Title Description
C06 Publication
C10 Request of examination as to substance
C14 Granted