热处理
熱處理
열처리
HEAT TREATMENT
2015年
2期
20-23,24
,共5页
钟涛生%李小红%付求涯%方晶
鐘濤生%李小紅%付求涯%方晶
종도생%리소홍%부구애%방정
碳纤维%铜基复合材料%摩擦性能%镀铜
碳纖維%銅基複閤材料%摩抆性能%鍍銅
탄섬유%동기복합재료%마찰성능%도동
carbon fiber%copper matrix composite materials%frictional behaviour%copper plating
以硫酸铜、碳纤维、铜粉等试剂作为原材料,研究了压制的压力、时间和方式,烧结温度及碳纤维镀铜时间等因素对碳纤维铜复合材料性能的影响。结果表明,随着压制压力的升高和压制时间的延长,复合材料坯体的密度和压溃强度都先快速后缓慢增加;双向压制坯体的性能优于单向压制坯体;复合材料的密度、强度和耐磨性能随着烧结温度的上升而提高,高于750~800℃时,强度开始下降,密度和抗磨性能保持不变;随着镀铜时间的延长,强度和干摩擦性能先快速提高,而后维持不变,但不影响密度和润滑摩擦性能。
以硫痠銅、碳纖維、銅粉等試劑作為原材料,研究瞭壓製的壓力、時間和方式,燒結溫度及碳纖維鍍銅時間等因素對碳纖維銅複閤材料性能的影響。結果錶明,隨著壓製壓力的升高和壓製時間的延長,複閤材料坯體的密度和壓潰彊度都先快速後緩慢增加;雙嚮壓製坯體的性能優于單嚮壓製坯體;複閤材料的密度、彊度和耐磨性能隨著燒結溫度的上升而提高,高于750~800℃時,彊度開始下降,密度和抗磨性能保持不變;隨著鍍銅時間的延長,彊度和榦摩抆性能先快速提高,而後維持不變,但不影響密度和潤滑摩抆性能。
이류산동、탄섬유、동분등시제작위원재료,연구료압제적압력、시간화방식,소결온도급탄섬유도동시간등인소대탄섬유동복합재료성능적영향。결과표명,수착압제압력적승고화압제시간적연장,복합재료배체적밀도화압궤강도도선쾌속후완만증가;쌍향압제배체적성능우우단향압제배체;복합재료적밀도、강도화내마성능수착소결온도적상승이제고,고우750~800℃시,강도개시하강,밀도화항마성능보지불변;수착도동시간적연장,강도화간마찰성능선쾌속제고,이후유지불변,단불영향밀도화윤활마찰성능。
Effect of pressure,time and way of pressing,sintering temperature and copper plating time of carbon fibre on performances of a carbon fiber-copper composite was investigated by using raw materials such as copper sulfate,carbon fiber,copper powder and other reagents.The results are that:(a)as the pressing pressure becomes higher and the pressing time become longer both the density and the collapsing strength of the composite billet are increased first fast then slow;(b)the two-direction pressed billet is superior to the one-direction pressed billet in the performances;(c)the density,strength and wearability of the composite increase with the elevation of sintering temperature,and when the temperature is above 750 ~800 ℃,the strength decreases,while the density and the wearability remain constant;(d)the prolongation of copper plating time will allow the strength and dry frictional behavior to increase rapidly and then to remain constant,but have no effect on the density and lubrication friction behavior.