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High-speed overweight load grinding consolidation grinding tool and preparation method thereof
According to a high-speed overweight-load grinding consolidation grinding tool and a preparation method thereof, a grinding function part adopts phenolic resin, polyimide resin, butyral resin, zinc borate, molybdenum disulfide, ferrous sulfide, cryolite, silicon carbide, calcium oxide and dibasic lead phosphite to form a modified high polymer phenolic resin binding agent, so that the binding agent has the excellent characteristics of high strength and high temperature resistance; polyimide resin is relatively high in toughness and relatively high in mechanical property, and can be subjected to a co-curing reaction with the phenolic resin or form a partial interpenetrating network structure, so that the mechanical property of the binding agent is improved; further modification is performed through ferrous sulfide, molybdenum disulfide and cryolite, so that the modified binding agent has high toughness and high heat resistance, and the modification effect is obviously improved; meanwhile, after butyral resin is cured, a coating film can be formed on an abrasive material of the grinding wheel, the holding force of a binding agent and the abrasive material is greatly improved, the binding agent participates in tissue composite nucleation, a workpiece can be effectively prevented from being burnt, and the hardness uniformity index in the grinding tool is improved.
本发明提出的一种高速超重负荷磨削固结磨具及其制备方法，磨削功能部采用酚醛树脂、聚酰亚胺树脂、缩丁醛树脂、硼酸锌、二硫化钼、硫化亚铁、冰晶石、碳化硅、氧化钙以及二盐基亚磷酸铅组成改性高聚合物基酚醛树脂结合剂，使结合剂具有高强度、耐高温的优异特性；聚酰亚胺树脂韧性较好，力学性能较高，能与酚醛树脂发生共固化反应或形成部分互穿网络结构，提高结合剂的力学性能；进一步通过硫化亚铁、二硫化钼、冰晶石改性，使改性后的结合剂兼具高韧性和高耐热性，改性效果明显提高；同时，缩丁醛树脂固化后在砂轮的磨料上会形成包膜，大幅度提高结合剂与磨料的把持力，参与组织复合成核，能够有效避免烧伤工件，并提高了磨具内部的硬度均匀性指标。
High-speed overweight load grinding consolidation grinding tool and preparation method thereof
According to a high-speed overweight-load grinding consolidation grinding tool and a preparation method thereof, a grinding function part adopts phenolic resin, polyimide resin, butyral resin, zinc borate, molybdenum disulfide, ferrous sulfide, cryolite, silicon carbide, calcium oxide and dibasic lead phosphite to form a modified high polymer phenolic resin binding agent, so that the binding agent has the excellent characteristics of high strength and high temperature resistance; polyimide resin is relatively high in toughness and relatively high in mechanical property, and can be subjected to a co-curing reaction with the phenolic resin or form a partial interpenetrating network structure, so that the mechanical property of the binding agent is improved; further modification is performed through ferrous sulfide, molybdenum disulfide and cryolite, so that the modified binding agent has high toughness and high heat resistance, and the modification effect is obviously improved; meanwhile, after butyral resin is cured, a coating film can be formed on an abrasive material of the grinding wheel, the holding force of a binding agent and the abrasive material is greatly improved, the binding agent participates in tissue composite nucleation, a workpiece can be effectively prevented from being burnt, and the hardness uniformity index in the grinding tool is improved.
本发明提出的一种高速超重负荷磨削固结磨具及其制备方法，磨削功能部采用酚醛树脂、聚酰亚胺树脂、缩丁醛树脂、硼酸锌、二硫化钼、硫化亚铁、冰晶石、碳化硅、氧化钙以及二盐基亚磷酸铅组成改性高聚合物基酚醛树脂结合剂，使结合剂具有高强度、耐高温的优异特性；聚酰亚胺树脂韧性较好，力学性能较高，能与酚醛树脂发生共固化反应或形成部分互穿网络结构，提高结合剂的力学性能；进一步通过硫化亚铁、二硫化钼、冰晶石改性，使改性后的结合剂兼具高韧性和高耐热性，改性效果明显提高；同时，缩丁醛树脂固化后在砂轮的磨料上会形成包膜，大幅度提高结合剂与磨料的把持力，参与组织复合成核，能够有效避免烧伤工件，并提高了磨具内部的硬度均匀性指标。
High-speed overweight load grinding consolidation grinding tool and preparation method thereof
高速超重负荷磨削固结磨具及其制备方法
CHEN SHENPING (Autor:in) / LIU XIAOPAN (Autor:in) / SUN YUFENG (Autor:in) / CHEN RUIHE (Autor:in) / LIU ZONGTANG (Autor:in) / CHEN RUIPING (Autor:in) / WANG YOUTANG (Autor:in) / WU ZHUYAN (Autor:in)
16.11.2021
Patent
Elektronische Ressource
Chinesisch
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