公开(公告)号：US20130277894A1

公开(公告)日：2013-10-24

申请号：US13578378

申请日：2010-12-09

申请人： Lesheng Chen ,  Xiao Chen ,  Chengfa Mu ,  Gengxin Qi

发明人： Lesheng Chen ,  Xiao Chen ,  Chengfa Mu ,  Gengxin Qi

IPC分类号： H01R43/16

CPC分类号： H01R43/16 ,  B22F1/025 ,  B22F3/162 ,  B22F3/20 ,  B22F9/24 ,  B22F2998/10 ,  C22C5/06 ,  H01B1/02

摘要： A method of preparing silver-based electrical contact materials with directionally arranged reinforcing particles includes steps of: (1) preparing composite powders with Ag coating on the reinforcing phase by chemical plating coating; (2) granulating; (3) placing the granulated powders and the matrix silver powders into the powder mixer for mixing; (4) cold-isostatically pressing; (5) sintering; (6) hot-presssing; (7) hot-extruding, thereby obtaining the reinforcing silver-based electrical contact materials with directionally arranged particles. Regardless of the size of reinforcing particles, the present invention can obtain particle-reinforced silver-based materials with excellent electrical performance The process is simple and easy to operate, and places no special requirements on the equipment. Furthermore, the resistance to welding and arc erosion, and the conductivity of the material prepared by the present invention can be greatly improved. Moreover, the processing performance is excellent.

摘要翻译： 制备具有定向排列的增强粒子的银基电接触材料的方法包括以下步骤：（1）通过化学镀涂层在增强相上制备具有Ag涂层的复合粉末; （2）造粒; （3）将造粒粉末和基质银粉末放入粉末混合器中进行混合; （4）冷等静压; （5）烧结; （6）热压; （7）热挤压，从而获得具有定向排列的颗粒的增强银基电接触材料。 不管增强粒子的尺寸如何，本发明可以获得具有优异的电性能的粒子增强的银基材料。该工艺简单且易于操作，对设备没有特殊要求。 此外，可以大大提高耐焊接和电弧腐蚀以及由本发明制备的材料的导电性。 此外，处理性能优异。

公开(公告)号：US09287018B2

公开(公告)日：2016-03-15

申请号：US13577893

申请日：2011-04-11

申请人： Lesheng Chen ,  Xiao Chen ,  Gengxin Qi ,  Chengfa Mu

发明人： Lesheng Chen ,  Xiao Chen ,  Gengxin Qi ,  Chengfa Mu

IPC分类号： H01B1/02 ,  C23C30/00

CPC分类号： H01B1/02 ,  C23C30/00

摘要： A method for preparing silver-based electrical contact materials with fiber-like arrangement of reinforcing nanoparticles includes (1) uniformly mixing reinforcement powders and silver matrix powders for ball milling; (2) pouring the obtained composite powders and silver matrix powders into a powder mixing machine for powder mixing; (3) cold isostatic pressing; (4) sintering; (5) hot pressing; and (6) hot extruding to obtain silver-based electrical contact materials with fiber-like arrangement of reinforcing nanoparticles. The method of the present invention can obtain silver-based electrical contact materials with fiber-like arrangement of reinforcing nanoparticles with no specific requirement on processing deformation, and the plasticity and ductility of the reinforcing phase. Furthermore, it has simple processes, low cost and no particular requirements on the equipment. Contact materials prepared by the present method have good resistance to welding and arc erosion, conductivity and a greatly enhanced processing performance.

摘要翻译： 用于制备具有纤维状排列的增强纳米颗粒的银基电接触材料的方法包括（1）均匀混合增强粉末和用于球磨的银基粉末; （2）将得到的复合粉末和银基粉末倒入用于粉末混合的粉末混合机中; （3）冷等静压; （4）烧结; （5）热压; 和（6）热挤压以获得具有纤维状排列的增强纳米颗粒的银基电接触材料。 本发明的方法可以获得具有增强纳米颗粒的纤维状布置的银基电接触材料，对加工变形没有特别要求，并且增强相的可塑性和延展性。 此外，它具有工艺简单，成本低，对设备没有特殊要求。 通过本方法制备的接触材料具有良好的耐焊接性和电弧腐蚀性，导电性和极大增强的加工性能。

公开(公告)号：US20130313488A1

公开(公告)日：2013-11-28

申请号：US13577893

申请日：2011-04-11

申请人： Lesheng Chen ,  Xiao Chen ,  Gengxin Qi ,  Chengfa Mu

发明人： Lesheng Chen ,  Xiao Chen ,  Gengxin Qi ,  Chengfa Mu

IPC分类号： H01B1/02 ,  C23C30/00

CPC分类号： H01B1/02 ,  C23C30/00

摘要： A method for preparing silver-based electrical contact materials with fiber-like arrangement of reinforcing nanoparticles includes (1) uniformly mixing reinforcement powders and silver matrix powders for ball milling; (2) pouring the obtained composite powders and silver matrix powders into a powder mixing machine for powder mixing; (3) cold isostatic pressing; (4) sintering; (5) hot pressing; and (6) hot extruding to obtain silver-based electrical contact materials with fiber-like arrangement of reinforcing nanoparticles. The method of the present invention can obtain silver-based electrical contact materials with fiber-like arrangement of reinforcing nanoparticles with no specific requirement on processing deformation, and the plasticity and ductility of the reinforcing phase. Furthermore, it has simple processes, low cost and no particular requirements on the equipment. Contact materials prepared by the present method have good resistance to welding and arc erosion, conductivity and a greatly enhanced processing performance.

摘要翻译： 用于制备具有纤维状排列的增强纳米颗粒的银基电接触材料的方法包括（1）均匀混合增强粉末和用于球磨的银基粉末; （2）将得到的复合粉末和银基粉末倒入用于粉末混合的粉末混合机中; （3）冷等静压; （4）烧结; （5）热压; 和（6）热挤压以获得具有纤维状排列的增强纳米颗粒的银基电接触材料。 本发明的方法可以获得具有增强纳米颗粒的纤维状布置的银基电接触材料，对加工变形没有特别要求，并且增强相的可塑性和延展性。 此外，它具有工艺简单，成本低，对设备没有特殊要求。 通过本方法制备的接触材料具有良好的耐焊接性和电弧腐蚀性，导电性和极大增强的加工性能。

公开(公告)号：US09437998B2

公开(公告)日：2016-09-06

申请号：US13578378

申请日：2011-04-11

申请人： Lesheng Chen ,  Xiao Chen ,  Chengfa Mu ,  Gengxin Qi

发明人： Lesheng Chen ,  Xiao Chen ,  Chengfa Mu ,  Gengxin Qi

IPC分类号： H01R43/16 ,  B22F1/02 ,  B22F3/16 ,  B22F3/20 ,  B22F9/24 ,  C22C5/06 ,  H01B1/02

CPC分类号： H01R43/16 ,  B22F1/025 ,  B22F3/162 ,  B22F3/20 ,  B22F9/24 ,  B22F2998/10 ,  C22C5/06 ,  H01B1/02

摘要： A method of preparing silver-based electrical contact materials with directionally arranged reinforcing particles includes steps of: (1) preparing composite powders with Ag coating on the reinforcing phase by chemical plating coating; (2) granulating; (3) placing the granulated powders and the matrix silver powders into the powder mixer for mixing; (4) cold-isostatically pressing; (5) sintering; (6) hot-presssing; (7) hot-extruding, thereby obtaining the reinforcing silver-based electrical contact materials with directionally arranged particles. Regardless of the size of reinforcing particles, the present invention can obtain particle-reinforced silver-based materials with excellent electrical performance. The process is simple and easy to operate, and places no special requirements on the equipment. Furthermore, the resistance to welding and arc erosion, and the conductivity of the material prepared by the present invention can be greatly improved. Moreover, the processing performance is excellent.

摘要翻译： 制备具有定向排列的增强粒子的银基电接触材料的方法包括以下步骤：（1）通过化学镀涂层在增强相上制备具有Ag涂层的复合粉末; （2）造粒; （3）将造粒粉末和基质银粉末放入粉末混合器中进行混合; （4）冷等静压; （5）烧结; （6）热压; （7）热挤压，从而获得具有定向排列的颗粒的增强银基电接触材料。 不管增强颗粒的尺寸如何，本发明可以获得具有优异电性能的颗粒增强的银基材料。 该过程简单易操作，对设备无特殊要求。 此外，可以大大提高耐焊接和电弧腐蚀以及由本发明制备的材料的导电性。 此外，处理性能优异。

公开(公告)号：US20130266791A1

公开(公告)日：2013-10-10

申请号：US13577897

申请日：2011-04-11

申请人： Lesheng Chen ,  Xiao Chen ,  Gengxin Qi ,  Chengfa Mu

发明人： Lesheng Chen ,  Xiao Chen ,  Gengxin Qi ,  Chengfa Mu

IPC分类号： H01H1/0237

CPC分类号： H01H1/0237 ,  B22F3/04 ,  B22F3/10 ,  B22F3/14 ,  B22F3/20 ,  C22C1/0466 ,  C22C5/06 ,  C22C32/0021 ,  C22C49/02 ,  C22C49/14 ,  H01H1/02372 ,  H01H1/02374 ,  H01H1/02376 ,  Y10T428/249921

摘要： In the present invention, a method of preparing Ag-based oxide contact materials with directionally arranged reinforcing particles is disclosed, comprising steps of: a) preparing evenly dispersed composite powders by chemical co-precipitation method combining with roasting, b) granulating the composite powders by high energy ball milling, and sieving the powders, c) mixing the powders and Ag matrix in a powder mixing machine, d) cold isostatic pressing, e) sintering, f) hot-pressing, g) hot-extruding to obtain Ag-based oxide contact materials with directionally arranged reinforcing particles. This method can obtain particle reinforced Ag-based material with good electrical performance even when the reinforced (oxide) particles are very small. This method is simple, easy to operate, and does not require special equipment. The resistance to welding and arc erosion, electric conductivity and the processability of the material prepared through this present invention can be greatly improved.

摘要翻译： 在本发明中，公开了一种制备具有定向配置的增强粒子的Ag系氧化物接触材料的方法，包括以下步骤：a）通过与焙烧结合的化学共沉淀法制备均匀分散的复合粉末，b）将复合粉末 通过高能球磨和筛分粉末，c）将粉末和Ag基质混合在粉末混合机中，d）冷等静压，e）烧结，f）热压，g）热挤压以获得Ag- 具有定向排列的增强颗粒的氧化物接触材料。 该方法可以获得具有良好电性能的颗粒增强的Ag基材料，即使当增强（氧化物）颗粒非常小时。 该方法简单，操作方便，不需要特殊设备。 通过本发明制备的材料的耐焊接性和电弧腐蚀性，导电性和加工性能可以大大提高。

公开(公告)号：US09761342B2

公开(公告)日：2017-09-12

申请号：US13578253

申请日：2011-04-11

申请人： Lesheng Chen ,  Xiao Chen ,  Gengxin Qi ,  Chengfa Mu

发明人： Lesheng Chen ,  Xiao Chen ,  Gengxin Qi ,  Chengfa Mu

IPC分类号： B22F3/04 ,  B22F3/20 ,  H01B1/02 ,  C22C5/06 ,  H01H1/0237 ,  B22F3/24 ,  B22F3/10 ,  B22F3/14 ,  C22C1/10

CPC分类号： H01B1/02 ,  B22F3/04 ,  B22F3/10 ,  B22F3/14 ,  B22F3/20 ,  B22F3/24 ,  C22C1/1078 ,  C22C1/1084 ,  C22C5/06 ,  H01H1/0237 ,  H01H1/02372 ,  H01H1/02374 ,  H01H1/02376

摘要： A method of preparing silver-based oxide electrical contact materials with fiber-like arrangement, includes the following steps of: (1) uniformly mixing the silver-metal alloy powders and graphite powders and then ball-milling; (2) internally oxidizing the ball-milled powders; (3) sieving; (4) placing the sieved powders and the matrix powders into the powder mixer for mixing; (5) cold-isostatically pressing; (6) sintering; (7) hot-pressing; and (8) hot-extruding, thereby obtaining the silver-based oxide electrical contact material with fiber-like arrangement. The method of the present invention can obtain the silver-based oxide electrical contact material having neat fiber-like arrangement with no specific requirement on processing deformation, plasticity and ductility of the reinforcing phase. The production process in this method is simple and is easy to operate. Besides, there is no particular requirement on the equipment. The method greatly improves the performance of contact materials in aspects of resistance to welding and arc erosion, conductivity, and processing performance.

公开(公告)号：US09293270B2

公开(公告)日：2016-03-22

申请号：US13577897

申请日：2011-04-11

申请人： Lesheng Chen ,  Xiao Chen ,  Gengxin Qi ,  Chengfa Mu

发明人： Lesheng Chen ,  Xiao Chen ,  Gengxin Qi ,  Chengfa Mu

IPC分类号： B22F3/20 ,  H01H1/0237 ,  C22C5/06 ,  C22C32/00 ,  B22F3/04 ,  B22F3/10 ,  B22F3/14 ,  C22C1/04 ,  C22C49/02 ,  C22C49/14

CPC分类号： H01H1/0237 ,  B22F3/04 ,  B22F3/10 ,  B22F3/14 ,  B22F3/20 ,  C22C1/0466 ,  C22C5/06 ,  C22C32/0021 ,  C22C49/02 ,  C22C49/14 ,  H01H1/02372 ,  H01H1/02374 ,  H01H1/02376 ,  Y10T428/249921

摘要： In the present invention, a method of preparing Ag-based oxide contact materials with directionally arranged reinforcing particles is disclosed, comprising steps of: a) preparing evenly dispersed composite powders by chemical co-precipitation method combining with roasting, b) granulating the composite powders by high energy ball milling, and sieving the powders, c) mixing the powders and Ag matrix in a powder mixing machine, d) cold isostatic pressing, e) sintering, f) hot-pressing, g) hot-extruding to obtain Ag-based oxide contact materials with directionally arranged reinforcing particles. This method can obtain particle reinforced Ag-based material with good electrical performance even when the reinforced (oxide) particles are very small. This method is simple, easy to operate, and does not require special equipment. The resistance to welding and arc erosion, electric conductivity and the processability of the material prepared through this present invention can be greatly improved.

摘要翻译： 在本发明中，公开了一种制备具有定向配置的增强粒子的Ag系氧化物接触材料的方法，包括以下步骤：a）通过与焙烧结合的化学共沉淀法制备均匀分散的复合粉末，b）将复合粉末 通过高能球磨和筛分粉末，c）将粉末和Ag基质混合在粉末混合机中，d）冷等静压，e）烧结，f）热压，g）热挤压以获得Ag- 具有定向排列的增强颗粒的氧化物接触材料。 该方法可以获得具有良好电性能的颗粒增强的Ag基材料，即使当增强（氧化物）颗粒非常小时。 该方法简单，操作方便，不需要特殊设备。 通过本发明制备的材料的耐焊接性和电弧腐蚀性，导电性和加工性能可以大大提高。

公开(公告)号：US20130266468A1

公开(公告)日：2013-10-10

申请号：US13578253

申请日：2011-04-11

申请人： Lesheng Chen ,  Xian Chen ,  Gengxin Qi ,  Chengfa Mu

发明人： Lesheng Chen ,  Xian Chen ,  Gengxin Qi ,  Chengfa Mu

IPC分类号： H01B1/02 ,  B22F3/20 ,  B22F3/24

CPC分类号： H01B1/02 ,  B22F3/04 ,  B22F3/10 ,  B22F3/14 ,  B22F3/20 ,  B22F3/24 ,  C22C1/1078 ,  C22C1/1084 ,  C22C5/06 ,  H01H1/0237 ,  H01H1/02372 ,  H01H1/02374 ,  H01H1/02376

摘要： A method of preparing silver-based oxide electrical contact materials with fiber-like arrangement, includes the following steps of: (1) uniformly mixing the silver-metal alloy powders and graphite powders and then ball-milling; (2) internally oxidizing the ball-milled powders; (3) sieving; (4) placing the sieved powders and the matrix powders into the powder mixer for mixing; (5) cold-isostatically pressing; (6) sintering; (7) hot-pressing; and (8) hot-extruding, thereby obtaining the silver-based oxide electrical contact material with fiber-like arrangement. The method of the present invention can obtain the silver-based oxide electrical contact material having neat fiber-like arrangement with no specific requirement on processing deformation, plasticity and ductility of the reinforcing phase. The production process in this method is simple and is easy to operate. Besides, there is no particular requirement on the equipment. The method greatly improves the performance of contact materials in aspects of resistance to welding and arc erosion, conductivity, and processing performance

摘要翻译： 制备具有纤维状布置的银基氧化物电接触材料的方法包括以下步骤：（1）均匀混合银 - 金属合金粉末和石墨粉末，然后进行球磨; （2）对球磨粉末进行内部氧化; （3）筛选; （4）将筛分的粉末和基质粉末放入粉末混合器中进行混合; （5）冷等静压; （6）烧结; （7）热压; 和（8）热挤压，从而获得具有纤维状布置的银基氧化物电接触材料。 本发明的方法可以获得具有纯纤维状布置的银基氧化物电接触材料，而对增强相的加工变形，可塑性和延展性没有特别要求。 该方法的生产工艺简单易操作。 此外，对设备没有特别的要求。 该方法在抵抗焊接和电弧腐蚀，导电性和加工性能方面大大提高了接触材料的性能