CN115029693A - A method for preparing silver coating using ultra-high-speed laser cladding technology and product thereof - Google Patents
A method for preparing silver coating using ultra-high-speed laser cladding technology and product thereof Download PDFInfo
- Publication number
- CN115029693A CN115029693A CN202210442716.1A CN202210442716A CN115029693A CN 115029693 A CN115029693 A CN 115029693A CN 202210442716 A CN202210442716 A CN 202210442716A CN 115029693 A CN115029693 A CN 115029693A
- Authority
- CN
- China
- Prior art keywords
- silver
- silver coating
- ultra
- coating
- laser cladding
- 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.)
- Granted
Links
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 title claims abstract description 102
- 229910052709 silver Inorganic materials 0.000 title claims abstract description 100
- 239000004332 silver Substances 0.000 title claims abstract description 100
- 238000000576 coating method Methods 0.000 title claims abstract description 85
- 239000011248 coating agent Substances 0.000 title claims abstract description 84
- 238000004372 laser cladding Methods 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 37
- 238000005516 engineering process Methods 0.000 title claims abstract description 30
- 239000002245 particle Substances 0.000 claims abstract description 59
- 238000000498 ball milling Methods 0.000 claims abstract description 31
- 239000002105 nanoparticle Substances 0.000 claims abstract description 31
- 150000003378 silver Chemical class 0.000 claims abstract description 14
- 239000002994 raw material Substances 0.000 claims abstract description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 6
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims abstract description 6
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000000377 silicon dioxide Substances 0.000 claims abstract 2
- 239000010935 stainless steel Substances 0.000 claims description 15
- 229910001220 stainless steel Inorganic materials 0.000 claims description 15
- 239000010410 layer Substances 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 10
- 238000005253 cladding Methods 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 6
- 239000011247 coating layer Substances 0.000 claims description 5
- 239000000758 substrate Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 230000009467 reduction Effects 0.000 description 13
- 238000002360 preparation method Methods 0.000 description 9
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 238000010288 cold spraying Methods 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 239000011858 nanopowder Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
- C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
- C23C24/103—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
Description
技术领域technical field
本发明涉及表面工程技术领域，具体涉及一种利用超高速激光熔覆技术制备银涂层的方法及其产品。The invention relates to the technical field of surface engineering, in particular to a method for preparing a silver coating using an ultra-high-speed laser cladding technology and a product thereof.
背景技术Background technique
还原炉是生产多晶硅的重要设备之一，由底盘、炉体、上封头、电极等部件组成。The reduction furnace is one of the important equipments for the production of polysilicon, which is composed of chassis, furnace body, upper head, electrodes and other components.
一般而言，炉体通常采用银不锈钢复合板焊接而成，银面在炉体内侧，即还原炉内壁上有一层光滑的银材料层，例如公开号为CN1559896A的专利技术等。Generally speaking, the furnace body is usually welded with silver stainless steel composite plates, and the silver surface is on the inside of the furnace body, that is, there is a smooth layer of silver material on the inner wall of the reduction furnace, such as the patented technology with publication number CN1559896A.
采用冷喷涂的方法可以直接在不锈钢内壁上制备银涂层，但由于冷喷涂是部分冶金结合，银涂层结合强度较低，最大只能到50MPa左右，导致银涂层容易脱落。The silver coating can be directly prepared on the inner wall of the stainless steel by the method of cold spraying. However, because the cold spraying is a partial metallurgical bonding, the bonding strength of the silver coating is low, and the maximum can only reach about 50MPa, which causes the silver coating to fall off easily.
超高速激光熔覆是一种制备涂层的热点方法，其特点是完全冶金结合，涂层结合力高。例如，公开号为CN112342542A的专利说明书公开了一种45钢零件超高速激光熔覆316L涂层的方法，包括S1、对45钢零件和316L不锈钢粉末进行预处理；S2、将预处理后的45钢零件采用夹具固定于设备的坐标系内；S3、设定45钢零件的扫描路径、扫描区域形状和尺寸；S4、将316L不锈钢粉末导入激光送粉器中，根据扫描路径、扫描区域形状和尺寸对45钢零件进行超高速激光熔覆，形成316L涂层；S5、对形成的316L涂层进行抛光处理。该专利技术在45钢零件关键位置上进行超高速激光熔覆制备的316L涂层，其表面平整度高，无裂纹和孔洞类缺陷，晶粒细小，厚度均匀，与基体形成良好的冶金结合，硬度高，耐磨性好，耐腐蚀性好，且工艺周期短，材料浪费少。Ultra-high-speed laser cladding is a hot method for preparing coatings, which is characterized by complete metallurgical bonding and high coating adhesion. For example, the patent specification with publication number CN112342542A discloses a method for ultra-high-speed laser cladding of 316L coating on 45 steel parts, including S1, pretreatment of 45 steel parts and 316L stainless steel powder; S2, pretreatment of 45 steel parts The steel parts are fixed in the coordinate system of the equipment with a fixture; S3, set the scanning path, the shape and size of the scanning area of the 45 steel parts; S4, introduce the 316L stainless steel powder into the laser powder feeder, according to the scanning path, scanning area shape and size. Ultra-high-speed laser cladding is performed on 45 steel parts to form 316L coating; S5, the formed 316L coating is polished. The 316L coating prepared by ultra-high-speed laser cladding on key positions of 45 steel parts with this patented technology has high surface flatness, no cracks and holes, fine grains, uniform thickness, and forms a good metallurgical bond with the substrate. High hardness, good wear resistance, good corrosion resistance, and short process cycle, less material waste.
然而，如果将超高速激光熔覆直接转移应用于银涂层制备时，由于银本身的激光吸收率较低，所以银涂层质量通常达不到预期效果。However, if the direct transfer of ultra-high-speed laser cladding is applied to the preparation of silver coating, the quality of silver coating is usually not as expected due to the low laser absorption rate of silver itself.
发明内容SUMMARY OF THE INVENTION
针对上述技术问题以及本领域存在的不足之处，本发明提供了一种利用超高速激光熔覆技术制备银涂层的方法，通过特定种类的纳米颗粒提高微米银颗粒的激光吸收性能，进而使得超高速激光熔覆制备得到的银涂层孔隙率明显降低，结合强度明显提高，生产成本大幅度降低。In view of the above-mentioned technical problems and deficiencies in the art, the present invention provides a method for preparing a silver coating by using an ultra-high-speed laser cladding technology, which improves the laser absorption performance of the micron silver particles through specific types of nanoparticles, thereby making the The porosity of the silver coating prepared by ultra-high-speed laser cladding is significantly reduced, the bonding strength is significantly improved, and the production cost is greatly reduced.
具体技术方案如下：The specific technical solutions are as follows:
一种利用超高速激光熔覆技术制备银涂层的方法，包括步骤：A method for preparing silver coating using ultra-high-speed laser cladding technology, comprising the steps of:
(1)采用球磨的方式将纳米颗粒包裹在微米银颗粒表面，得到改性银颗粒；(1) using the method of ball milling to wrap the nanoparticles on the surface of the micron silver particles to obtain modified silver particles;
所述纳米颗粒包括氧化铝、氧化锆、氧化硅、碳化硅中的至少一种；The nanoparticles include at least one of aluminum oxide, zirconium oxide, silicon oxide, and silicon carbide;
(2)以所述改性银颗粒为原料，利用超高速激光熔覆技术制备银涂层。(2) Using the modified silver particles as raw materials, a silver coating is prepared by using an ultra-high-speed laser cladding technology.
本发明采用球磨的方式将特定种类的纳米颗粒包裹在微米银颗粒表面，将纳米颗粒和微米银颗粒进行机械合金化，从而提高微米银颗粒的激光吸收性能，进而使得超高速激光熔覆制备得到的银涂层结合强度明显提高，孔隙率明显降低，生产成本大幅度降低。In the present invention, specific types of nanoparticles are wrapped on the surface of the micron silver particles by means of ball milling, and the nanoparticles and the micron silver particles are mechanically alloyed, so as to improve the laser absorption performance of the micron silver particles, thereby enabling ultra-high-speed laser cladding to prepare The bonding strength of the silver coating is significantly improved, the porosity is significantly reduced, and the production cost is greatly reduced.
在一优选例中，步骤(1)中，所述球磨的参数条件如下：球磨转速50-150r/min，球料比8～12:1，球磨时间5-10min。该条件下，球磨过程中银粉末变形少，不影响银粉末的流动性和后续的超高速激光熔覆过程，同时，纳米陶瓷粉末均匀的粘在银粉末表面。进一步优选，步骤(1)中，所述球磨的参数条件如下：球磨转速50r/min，球料比10:1，球磨时间10min。In a preferred example, in step (1), the parameter conditions of the ball milling are as follows: the ball milling speed is 50-150r/min, the ball-to-material ratio is 8-12:1, and the ball milling time is 5-10min. Under this condition, the silver powder is less deformed during the ball milling process, which does not affect the fluidity of the silver powder and the subsequent ultra-high-speed laser cladding process. At the same time, the nano-ceramic powder is uniformly adhered to the surface of the silver powder. Further preferably, in step (1), the parameter conditions of the ball milling are as follows: the ball milling speed is 50r/min, the ball-to-material ratio is 10:1, and the ball milling time is 10min.
在一优选例中，步骤(1)中，所述纳米颗粒的粒径D满足100nm≤D＜1μm。进一步优选，步骤(1)中，所述纳米颗粒的粒径D满足100nm≤D＜300nm。较细的纳米颗粒的分布均匀性更好，且实验表明，该粒度范围内的纳米粉末对激光的吸收作用最好。In a preferred example, in step (1), the particle size D of the nanoparticles satisfies 100 nm≦D<1 μm. Further preferably, in step (1), the particle size D of the nanoparticles satisfies 100nm≤D<300nm. The finer nanoparticles have better distribution uniformity, and experiments show that the nanopowders within this size range have the best laser absorption.
在一优选例中，步骤(1)中，所述微米银颗粒的粒径为200～1000目，该粒度下，银粉末流动性和涂层性能达到最佳。In a preferred example, in step (1), the particle size of the micron silver particles is 200-1000 mesh, and under this particle size, the fluidity and coating performance of the silver powder are optimal.
在一优选例中，步骤(1)中，所述纳米颗粒与所述微米银颗粒的质量比X满足0＜X≤1％。纳米粉末多了造成浪费，纳米粉末少了，银粉末的包覆效果不好，激光的吸收率低。进一步优选，步骤(1)中，所述纳米颗粒与所述微米银颗粒的质量比X满足0.6％≤X≤1％。In a preferred example, in step (1), the mass ratio X of the nanoparticles to the micro-silver particles satisfies 0<X≤1%. Too much nano-powder will cause waste, but too little nano-powder, the coating effect of silver powder is not good, and the absorption rate of laser is low. Further preferably, in step (1), the mass ratio X of the nanoparticles to the micro-silver particles satisfies 0.6%≤X≤1%.
在一优选例中，步骤(2)中，所述超高速激光熔覆技术的参数条件如下：激光功率2000～3000W，搭接率0.1～0.8，喷涂速度10～100mm/s，熔覆距离15～25mm。在以上各步骤的优选条件下，再结合优选参数条件的超高速激光熔覆技术，所得银涂层的涂层孔隙率不大于0.1％，结合强度不低于120MPa。In a preferred example, in step (2), the parameters of the ultra-high-speed laser cladding technology are as follows: laser power 2000-3000W, lap rate 0.1-0.8, spraying speed 10-100mm/s, cladding distance 15 ~25mm. Under the optimal conditions of the above steps, combined with the ultra-high-speed laser cladding technology with optimal parameter conditions, the coating porosity of the obtained silver coating is not more than 0.1%, and the bonding strength is not less than 120MPa.
在一优选例中，步骤(2)中，采用不锈钢为基底进行超高速激光熔覆制备银涂层，不锈钢耐腐蚀性能好。In a preferred example, in step (2), the silver coating is prepared by ultra-high-speed laser cladding using stainless steel as the base, and the stainless steel has good corrosion resistance.
在一优选例中，步骤(2)中，所述银涂层的厚度为0.1～0.6mm。In a preferred example, in step (2), the thickness of the silver coating is 0.1-0.6 mm.
按照本发明方法制备得到的银涂层的结合强度不低于120MPa，银涂层的热反射效率为95％以上。The bonding strength of the silver coating prepared according to the method of the present invention is not less than 120 MPa, and the heat reflection efficiency of the silver coating is more than 95%.
本发明方法特别适用于还原炉内壁银涂层的制备。The method of the invention is especially suitable for the preparation of the silver coating on the inner wall of the reduction furnace.
作为一个总的发明构思，本发明还提供了一种还原炉内壁结构，由外至内依次包括基底层和银涂层；As a general inventive concept, the present invention also provides an inner wall structure of a reduction furnace, which sequentially includes a base layer and a silver coating from the outside to the inside;
所述银涂层通过本发明上文所述的方法制备得到。The silver coating is prepared by the method described above in the present invention.
在以不锈钢为基底的还原炉内壁结构中，一般而言，若采用冷喷涂技术制备银涂层，为了使喷涂的银涂层获得较好的结合强度等效果，通常需要在不锈钢基底层上先设置一定厚度的镍或镍基合金等过渡层，然后再冷喷涂形成银涂层，且所形成的银涂层的结合强度最大也只能达到50MPa左右；而本发明采用超高速激光熔覆技术，可直接在不锈钢基底上制备形成超高结合强度(不低于120MPa)的银涂层。In the inner wall structure of the reduction furnace with stainless steel as the base, generally speaking, if the silver coating is prepared by cold spraying technology, in order to obtain better bonding strength and other effects of the sprayed silver coating, it is usually necessary to first coat the stainless steel base layer. A transition layer such as nickel or nickel-based alloy with a certain thickness is set, and then a silver coating is formed by cold spraying, and the maximum bonding strength of the formed silver coating can only reach about 50MPa; and the present invention adopts ultra-high-speed laser cladding technology. , the silver coating with ultra-high bonding strength (not less than 120MPa) can be prepared directly on the stainless steel substrate.
本发明与现有技术相比，主要优点包括：Compared with the prior art, the main advantages of the present invention include:
本发明采用球磨的方式将特定种类的纳米颗粒包裹在微米银颗粒表面，将纳米颗粒和微米银颗粒进行机械合金化，从而提高微米银颗粒的激光吸收性能，进而使得超高速激光熔覆制备得到的银涂层结合强度明显提高，孔隙率明显降低，生产成本大幅度降低。In the present invention, specific types of nanoparticles are wrapped on the surface of the micron silver particles by means of ball milling, and the nanoparticles and the micron silver particles are mechanically alloyed, so as to improve the laser absorption performance of the micron silver particles, thereby enabling ultra-high-speed laser cladding to prepare The bonding strength of the silver coating is significantly improved, the porosity is significantly reduced, and the production cost is greatly reduced.
按照本发明方法制备得到的银涂层的涂层孔隙率不大于0.1％，结合强度不低于120MPa，银涂层的热反射效率为95％以上。The coating porosity of the silver coating prepared by the method of the present invention is not more than 0.1%, the bonding strength is not less than 120MPa, and the heat reflection efficiency of the silver coating is more than 95%.
具体实施方式Detailed ways
下面结合具体实施例，进一步阐述本发明。应理解，这些实施例仅用于说明本发明而不用于限制本发明的范围。下列实施例中未注明具体条件的操作方法，通常按照常规条件，或按照制造厂商所建议的条件。The present invention will be further described below in conjunction with specific embodiments. It should be understood that these examples are only used to illustrate the present invention and not to limit the scope of the present invention. The operation method without specifying the specific conditions in the following examples is usually in accordance with the conventional conditions, or in accordance with the conditions suggested by the manufacturer.
实施例1Example 1
本实施例的利用超高速激光熔覆技术制备银涂层的方法，应用于还原炉内壁结构的制作。The method for preparing the silver coating using the ultra-high-speed laser cladding technology in this embodiment is applied to the fabrication of the inner wall structure of the reduction furnace.
还原炉内壁结构由外至内依次包括基底层和银涂层。其中，基底层为不锈钢。The inner wall structure of the reduction furnace sequentially includes a base layer and a silver coating layer from outside to inside. Wherein, the base layer is stainless steel.
银涂层的制备过程包括步骤：The preparation process of the silver coating includes the steps:
(1)采用球磨的方式将纳米颗粒包裹在微米银颗粒表面，得到改性银颗粒；(1) using the method of ball milling to wrap the nanoparticles on the surface of the micron silver particles to obtain modified silver particles;
所述纳米颗粒为氧化铝，粒径D满足100nm≤D＜300nm；The nanoparticles are alumina, and the particle size D satisfies 100nm≤D<300nm;
所述微米银颗粒的粒径为200～1000目；The particle size of the micron silver particles is 200-1000 meshes;
所述纳米颗粒占所述微米银颗粒的质量百分比为0.8％；The mass percentage of the nanoparticles in the micron silver particles is 0.8%;
所述球磨的参数条件如下：球磨转速50r/min，球料比10:1，球磨时间10min；The parameter conditions of the ball milling are as follows: the ball milling speed is 50r/min, the ball-to-material ratio is 10:1, and the ball milling time is 10min;
(2)以所述改性银颗粒为原料，利用超高速激光熔覆技术制备银涂层；(2) using the modified silver particles as raw materials, using ultra-high-speed laser cladding technology to prepare a silver coating;
所述超高速激光熔覆技术的参数条件如下：激光功率2200W，搭接率0.3，喷涂速度25mm/s，熔覆距离16mm。The parameter conditions of the ultra-high-speed laser cladding technology are as follows: the laser power is 2200W, the lap rate is 0.3, the spraying speed is 25mm/s, and the cladding distance is 16mm.
制备的银涂层的涂层厚度为0.2mm，涂层孔隙率为0.8％，结合强度为121MPa，热反射效率为95％以上。The coating thickness of the prepared silver coating is 0.2 mm, the coating porosity is 0.8%, the bonding strength is 121 MPa, and the heat reflection efficiency is more than 95%.
实施例2Example 2
本实施例的利用超高速激光熔覆技术制备银涂层的方法，应用于还原炉内壁结构的制作。The method for preparing the silver coating using the ultra-high-speed laser cladding technology in this embodiment is applied to the fabrication of the inner wall structure of the reduction furnace.
还原炉内壁结构由外至内依次包括基底层和银涂层。其中，基底层为不锈钢。The inner wall structure of the reduction furnace sequentially includes a base layer and a silver coating layer from outside to inside. Wherein, the base layer is stainless steel.
银涂层的制备过程包括步骤：The preparation process of the silver coating includes the steps:
(1)采用球磨的方式将纳米颗粒包裹在微米银颗粒表面，得到改性银颗粒；(1) using the method of ball milling to wrap the nanoparticles on the surface of the micron silver particles to obtain modified silver particles;
所述纳米颗粒为氧化锆，粒径D满足100nm≤D＜300nm；The nanoparticles are zirconia, and the particle size D satisfies 100nm≤D<300nm;
所述微米银颗粒的粒径为200～1000目；The particle size of the micron silver particles is 200-1000 meshes;
所述纳米颗粒占所述微米银颗粒的质量百分比为0.7％；The mass percentage of the nanoparticles in the micron silver particles is 0.7%;
所述球磨的参数条件如下：球磨转速50r/min，球料比10:1，球磨时间10min；The parameter conditions of the ball milling are as follows: the ball milling speed is 50r/min, the ball-to-material ratio is 10:1, and the ball milling time is 10min;
(2)以所述改性银颗粒为原料，利用超高速激光熔覆技术制备银涂层；(2) using the modified silver particles as raw materials, using ultra-high-speed laser cladding technology to prepare a silver coating;
所述超高速激光熔覆技术的参数条件如下：激光功率2000W，搭接率0.7，喷涂速度40mm/s，熔覆距离20mm。The parameter conditions of the ultra-high-speed laser cladding technology are as follows: the laser power is 2000W, the lap rate is 0.7, the spraying speed is 40mm/s, and the cladding distance is 20mm.
制备的银涂层的涂层厚度为0.3mm，涂层孔隙率为0.7％，结合强度为128MPa，热反射效率为95％以上。The coating thickness of the prepared silver coating is 0.3 mm, the coating porosity is 0.7%, the bonding strength is 128MPa, and the heat reflection efficiency is more than 95%.
实施例3Example 3
本实施例的利用超高速激光熔覆技术制备银涂层的方法，应用于还原炉内壁结构的制作。The method for preparing the silver coating using the ultra-high-speed laser cladding technology in this embodiment is applied to the fabrication of the inner wall structure of the reduction furnace.
还原炉内壁结构由外至内依次包括基底层和银涂层。其中，基底层为不锈钢。The inner wall structure of the reduction furnace sequentially includes a base layer and a silver coating layer from outside to inside. Wherein, the base layer is stainless steel.
银涂层的制备过程包括步骤：The preparation process of the silver coating includes the steps:
(1)采用球磨的方式将纳米颗粒包裹在微米银颗粒表面，得到改性银颗粒；(1) using the method of ball milling to wrap the nanoparticles on the surface of the micron silver particles to obtain modified silver particles;
所述纳米颗粒为氧化硅，粒径D满足100nm≤D＜300nm；The nanoparticles are silicon oxide, and the particle size D satisfies 100nm≤D<300nm;
所述微米银颗粒的粒径为200～1000目；The particle size of the micron silver particles is 200-1000 meshes;
所述纳米颗粒占所述微米银颗粒的质量百分比为1％；The mass percentage of the nanoparticles in the micron silver particles is 1%;
所述球磨的参数条件如下：球磨转速50r/min，球料比10:1，球磨时间10min；The parameter conditions of the ball milling are as follows: the ball milling speed is 50r/min, the ball-to-material ratio is 10:1, and the ball milling time is 10min;
(2)以所述改性银颗粒为原料，利用超高速激光熔覆技术制备银涂层；(2) using the modified silver particles as raw materials, using ultra-high-speed laser cladding technology to prepare a silver coating;
所述超高速激光熔覆技术的参数条件如下：激光功率2700W，搭接率0.5，喷涂速度55mm/s，熔覆距离22mm。The parameter conditions of the ultra-high-speed laser cladding technology are as follows: the laser power is 2700W, the lap rate is 0.5, the spraying speed is 55mm/s, and the cladding distance is 22mm.
制备的银涂层的涂层厚度为0.6mm，涂层孔隙率为0.3％，结合强度为134MPa，热反射效率为95％以上。The coating thickness of the prepared silver coating is 0.6 mm, the coating porosity is 0.3%, the bonding strength is 134 MPa, and the heat reflection efficiency is more than 95%.
实施例4Example 4
本实施例的利用超高速激光熔覆技术制备银涂层的方法，应用于还原炉内壁结构的制作。The method for preparing the silver coating using the ultra-high-speed laser cladding technology in this embodiment is applied to the fabrication of the inner wall structure of the reduction furnace.
还原炉内壁结构由外至内依次包括基底层和银涂层。其中，基底层为不锈钢。The inner wall structure of the reduction furnace sequentially includes a base layer and a silver coating layer from outside to inside. Wherein, the base layer is stainless steel.
银涂层的制备过程包括步骤：The preparation process of the silver coating includes the steps:
(1)采用球磨的方式将纳米颗粒包裹在微米银颗粒表面，得到改性银颗粒；(1) using the method of ball milling to wrap the nanoparticles on the surface of the micron silver particles to obtain modified silver particles;
所述纳米颗粒为碳化硅，粒径D满足100nm≤D＜300nm；The nanoparticles are silicon carbide, and the particle size D satisfies 100nm≤D<300nm;
所述微米银颗粒的粒径为200～1000目；The particle size of the micron silver particles is 200-1000 meshes;
所述纳米颗粒占所述微米银颗粒的质量百分比为0.6％；The mass percentage of the nanoparticles in the micron silver particles is 0.6%;
所述球磨的参数条件如下：球磨转速50r/min，球料比10:1，球磨时间10min；The parameter conditions of the ball milling are as follows: the ball milling speed is 50r/min, the ball-to-material ratio is 10:1, and the ball milling time is 10min;
(2)以所述改性银颗粒为原料，利用超高速激光熔覆技术制备银涂层；(2) using the modified silver particles as raw materials, using ultra-high-speed laser cladding technology to prepare a silver coating;
所述超高速激光熔覆技术的参数条件如下：激光功率3000W，搭接率0.8，喷涂速度100mm/s，熔覆距离15mm。The parameter conditions of the ultra-high-speed laser cladding technology are as follows: the laser power is 3000W, the lap rate is 0.8, the spraying speed is 100mm/s, and the cladding distance is 15mm.
制备的银涂层的涂层厚度为0.15mm，涂层孔隙率为0.5％，结合强度为132MPa，热反射效率为95％以上。The coating thickness of the prepared silver coating is 0.15mm, the coating porosity is 0.5%, the bonding strength is 132MPa, and the heat reflection efficiency is more than 95%.
对比例1Comparative Example 1
与实施例1的区别仅在于银涂层的制备过程中无步骤(1)，直接以粒径为200～1000目的微米银颗粒为原料，利用超高速激光熔覆技术制备银涂层，其余均相同。The only difference from Example 1 is that there is no step (1) in the preparation process of the silver coating, and the silver coating is prepared directly by using the ultra-high-speed laser cladding technology by using the micron silver particles with a particle size of 200 to 1000 mesh as the raw material. same.
制备的银涂层的涂层厚度为0.2mm，涂层孔隙率为2.3％，结合强度为57MPa，热反射效率为88％。The coating thickness of the prepared silver coating was 0.2 mm, the coating porosity was 2.3%, the bonding strength was 57 MPa, and the heat reflection efficiency was 88%.
对比例2Comparative Example 2
与实施例2的区别仅在于所述纳米颗粒占所述微米银颗粒的质量百分比为0.2％，其余均相同。The only difference from Example 2 is that the mass percentage of the nanoparticles in the micro-silver particles is 0.2%, and the rest are the same.
制备的银涂层的涂层厚度为0.3mm，涂层孔隙率为1.05％，结合强度为68MPa，热反射效率为92％。The coating thickness of the prepared silver coating was 0.3 mm, the coating porosity was 1.05%, the bonding strength was 68 MPa, and the heat reflection efficiency was 92%.
对比例3Comparative Example 3
与实施例4的区别仅在于所述超高速激光熔覆技术的激光功率为5000W，其余均相同。The only difference from Example 4 is that the laser power of the ultra-high-speed laser cladding technology is 5000W, and the rest are the same.
银涂层的制备过程中，由于激光功率过大，导致银颗粒气化现象严重，同时银液滴以过快的速度撞击基体不锈钢，涂层材料飞溅较多，银涂层制备效率低，效果也较差。In the preparation process of silver coating, due to the excessive laser power, the phenomenon of silver particle gasification is serious, and at the same time, the silver droplets hit the base stainless steel at an excessively fast speed, and the coating material splashes more, the preparation efficiency of silver coating is low, and the effect is low. Also poor.
此外应理解，在阅读了本发明的上述描述内容之后，本领域技术人员可以对本发明作各种改动或修改，这些等价形式同样落于本申请所附权利要求书所限定的范围。In addition, it should be understood that after reading the above description of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210442716.1A CN115029693B (en) | 2022-04-25 | 2022-04-25 | Method for preparing silver coating by using ultra-high-speed laser cladding technology and product thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210442716.1A CN115029693B (en) | 2022-04-25 | 2022-04-25 | Method for preparing silver coating by using ultra-high-speed laser cladding technology and product thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115029693A true CN115029693A (en) | 2022-09-09 |
| CN115029693B CN115029693B (en) | 2023-10-20 |
Family
ID=83119395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210442716.1A Active CN115029693B (en) | 2022-04-25 | 2022-04-25 | Method for preparing silver coating by using ultra-high-speed laser cladding technology and product thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115029693B (en) |
Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5945158A (en) * | 1996-01-16 | 1999-08-31 | N.V. Union Miniere S.A. | Process for the production of silver coated particles |
| CN1559896A (en) * | 2004-03-08 | 2005-01-05 | 成都蜀菱贸易发展有限公司 | Reduction furnace of hydrogen for polysilicon |
| CN1576393A (en) * | 2003-07-02 | 2005-02-09 | 罗姆和哈斯电子材料有限责任公司 | Metallization of ceramics |
| KR100806915B1 (en) * | 2006-10-10 | 2008-02-22 | 요업기술원 | Silver Coated Silica and Method of Manufacturing the Same and Products Using the Same |
| CN101688298A (en) * | 2007-05-02 | 2010-03-31 | 法国原子能委员会 | The method and apparatus of preparation multilayered coating on substrate |
| CN101768713A (en) * | 2008-12-26 | 2010-07-07 | 中国科学院金属研究所 | Method for preparing composite coating by soft metal powder and rigid grains and device therefor |
| CN102441672A (en) * | 2011-11-09 | 2012-05-09 | 铜陵学院 | Method for preparing metal-based gradient coating with enhanced laser-cladding ceramic nano-particles |
| US20120183799A1 (en) * | 2006-09-29 | 2012-07-19 | Mott Corporation | Sinter Bonded Porous Metallic Coatings |
| CN103223488A (en) * | 2013-05-08 | 2013-07-31 | 宁波大学 | Preparation method for silver-coated silicon dioxide composite microsphere particles |
| GB201310860D0 (en) * | 2013-06-18 | 2013-07-31 | Nexeon Ltd | Method and apparatus for preparing coated particles |
| CN103540927A (en) * | 2013-09-29 | 2014-01-29 | 山东科技大学 | In-situ preparation method of silver functional coating |
| CN104692827A (en) * | 2015-02-02 | 2015-06-10 | 华南师范大学 | A kind of preparation method of Ag-SiO2-Ag nano ball array |
| CN105290394A (en) * | 2015-11-03 | 2016-02-03 | 宁波大学 | Silver-mesoporous silica-silver sandwich core shell nanometer material and preparation and application thereof |
| CN105734553A (en) * | 2016-04-07 | 2016-07-06 | 天津德瑞云科技有限公司 | Preparation method for sliver coating |
| US20160222502A1 (en) * | 2015-01-30 | 2016-08-04 | King Fahd University Of Petroleum And Minerals | Method for the preparation of ag/c nanocomposite films by laser-induced carbonization of alkane |
| CN112342542A (en) * | 2020-11-20 | 2021-02-09 | 成都航空职业技术学院 | Method for ultrahigh-speed laser cladding of 316L coating of 45 steel part |
| KR102268620B1 (en) * | 2020-01-02 | 2021-06-25 | 베이징 내셔널 이노베이션 인스티튜트 오브 라이트웨이트 엘티디. | Ultra-high-speed laser cladding iron-based metal powder, and preparation method and application thereof |
-
2022
- 2022-04-25 CN CN202210442716.1A patent/CN115029693B/en active Active
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5945158A (en) * | 1996-01-16 | 1999-08-31 | N.V. Union Miniere S.A. | Process for the production of silver coated particles |
| CN1576393A (en) * | 2003-07-02 | 2005-02-09 | 罗姆和哈斯电子材料有限责任公司 | Metallization of ceramics |
| CN1559896A (en) * | 2004-03-08 | 2005-01-05 | 成都蜀菱贸易发展有限公司 | Reduction furnace of hydrogen for polysilicon |
| US20120183799A1 (en) * | 2006-09-29 | 2012-07-19 | Mott Corporation | Sinter Bonded Porous Metallic Coatings |
| KR100806915B1 (en) * | 2006-10-10 | 2008-02-22 | 요업기술원 | Silver Coated Silica and Method of Manufacturing the Same and Products Using the Same |
| CN101688298A (en) * | 2007-05-02 | 2010-03-31 | 法国原子能委员会 | The method and apparatus of preparation multilayered coating on substrate |
| CN101768713A (en) * | 2008-12-26 | 2010-07-07 | 中国科学院金属研究所 | Method for preparing composite coating by soft metal powder and rigid grains and device therefor |
| CN102441672A (en) * | 2011-11-09 | 2012-05-09 | 铜陵学院 | Method for preparing metal-based gradient coating with enhanced laser-cladding ceramic nano-particles |
| CN103223488A (en) * | 2013-05-08 | 2013-07-31 | 宁波大学 | Preparation method for silver-coated silicon dioxide composite microsphere particles |
| GB201310860D0 (en) * | 2013-06-18 | 2013-07-31 | Nexeon Ltd | Method and apparatus for preparing coated particles |
| CN103540927A (en) * | 2013-09-29 | 2014-01-29 | 山东科技大学 | In-situ preparation method of silver functional coating |
| US20160222502A1 (en) * | 2015-01-30 | 2016-08-04 | King Fahd University Of Petroleum And Minerals | Method for the preparation of ag/c nanocomposite films by laser-induced carbonization of alkane |
| CN104692827A (en) * | 2015-02-02 | 2015-06-10 | 华南师范大学 | A kind of preparation method of Ag-SiO2-Ag nano ball array |
| CN105290394A (en) * | 2015-11-03 | 2016-02-03 | 宁波大学 | Silver-mesoporous silica-silver sandwich core shell nanometer material and preparation and application thereof |
| CN105734553A (en) * | 2016-04-07 | 2016-07-06 | 天津德瑞云科技有限公司 | Preparation method for sliver coating |
| KR102268620B1 (en) * | 2020-01-02 | 2021-06-25 | 베이징 내셔널 이노베이션 인스티튜트 오브 라이트웨이트 엘티디. | Ultra-high-speed laser cladding iron-based metal powder, and preparation method and application thereof |
| CN112342542A (en) * | 2020-11-20 | 2021-02-09 | 成都航空职业技术学院 | Method for ultrahigh-speed laser cladding of 316L coating of 45 steel part |
Non-Patent Citations (3)
| Title |
|---|
| 尹平;黄福祥;李司山;汪振;李敏;: "Ag基复合材料的研究进展", 材料导报, no. 1 * |
| 房刘杨;姚延松;闫华;张培磊;秦阳;高秋实;: "激光熔覆自润滑复合涂层研究进展", 应用激光, no. 03, pages 66 * |
| 李亚江主编: "《特种连接技术》", 北京：机械工业出版社, pages: 66 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115029693B (en) | 2023-10-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103866319B (en) | Zr alloy surface prepares the laser cladding method of nickel base heat resistant wear-resistant coating | |
| CN104451673B (en) | Method for preparing ultra-high hardness cladding layer through synchronous ultrasonic vibration assisting laser technology | |
| CN101899663B (en) | Laser Preparation Method of Iron-Based Amorphous and Nanocrystalline Coatings | |
| CN108441859B (en) | Use Nb element enhancing wear-resisting laser cladding coating of Ni base and preparation method thereof | |
| CN113564577B (en) | Coating of copper-based surface intermetallic compound reinforced gradient high-entropy alloy and preparation method thereof | |
| CN102115882A (en) | Method for cladding alloy on surface of metallic matrix | |
| CN112063951A (en) | Magnesium-aluminum alloy surface laser cladding self-lubricating coating and construction method thereof | |
| CN108866538A (en) | Laser Cladding in-situ synthesizes double carbide (Ti, Nb) C and strengthens Ni base coating and preparation | |
| CN108385113A (en) | A kind of laser cladding-agitating friction method for modifying composite surface | |
| CN105132914B (en) | A kind of laser melting coating Fe bases Cr for adding nanometer Ti3C2Composite coating and preparation method thereof | |
| CN109989061A (en) | A method of laser 3D printing for preparing wear-resistant carbide ball mill liner | |
| CN114959683B (en) | Zirconium alloy surface laser cladding method | |
| CN111005015A (en) | A method for composite preparation of gradient coating by cold spraying/laser gas nitriding on steel surface | |
| CN104513979B (en) | A kind of titanium alloy laser strengthened coat with spontaneous nano-particle reinforcement | |
| CN115029693A (en) | A method for preparing silver coating using ultra-high-speed laser cladding technology and product thereof | |
| CN109183025B (en) | Wear-resistant Cr8Mo2SiV steel and its preparation method and Ni-based wear-resistant alloy powder for Cr8Mo2SiV steel | |
| CN109112461B (en) | A method for preparing aluminum-based amorphous composite ceramic coating on the surface of offshore platform steel by a laser two-step method | |
| CN113174547B (en) | Iron-based amorphous alloy powder, its preparation method and application in laser cladding | |
| CN104928615B (en) | A kind of titanium alloy surface La2O3Regulate and control method prepared by titanium carbide coating | |
| CN116180071A (en) | Preparation method of wear-resistant coating of ceramic reinforced aluminum matrix composite material, aluminum alloy material and train brake disc | |
| CN107164714A (en) | A kind of method for repairing and mending containing titanium composite panel | |
| CN113927495A (en) | A kind of preparation technology of self-sharpening metal bond diamond abrasive layer | |
| CN110565001A (en) | Thermal spraying powder and method for preparing thermal spraying coating by using same | |
| CN115449788B (en) | In-situ self-generated three-layer core-shell structure Al 2 O 3 TiC/TiB particle reinforced iron-based composite coating and preparation thereof | |
| CN114921784B (en) | A method for preparing high-quality radiation-resistant tungsten alloy coating |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |