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航空材料研究所研究的无溶剂的无孔蜂窝结构胶——自力—4胶。具有强度高,综合性能好,耐介质和耐老化性能好的特点,航空材料研究所与抚顺自行车总厂密切配合已将自力—4胶推广应用于“鸿鹄”牌高级铝合金自行车,车架等十七个接头全部用胶接工艺代替焊接工艺,通过了十八万次冲击试验,四千五百公斤的拉力试验和相当于正常骑行七年的老化试验。一九八二年二月由天津自行车研究所对二台整车,四台份零件进行了技术鉴定,质量
Aerospace Materials Research Institute’s solvent-free non-porous honeycomb structure adhesive - self-property 4 glue. With the characteristics of high strength, good comprehensive performance, good resistance to media and aging resistance, the Institute of Aeronautical Materials closely cooperates with Fushun Bicycle General Factory. It has promoted self-propelled 4 rubber to be applied to the “Hung Lu” brand advanced aluminum alloy bicycle, frame, etc. Seventeen joints were all replaced by a glued joint process instead of a welding process. They passed 180,000 impact tests, 4,500 kilograms of tensile tests and seven years of aging tests that were equivalent to normal cycling. In February 1982, the Tianjin Bicycle Research Institute conducted a technical appraisal of two complete sets of vehicles and four sets of parts.