润滑与密封
潤滑與密封
윤활여밀봉
LUBRICATION ENGINEERING
2014年
3期
38-42
,共5页
单因素方差分析%螺栓%摩擦因数%扭矩系数
單因素方差分析%螺栓%摩抆因數%扭矩繫數
단인소방차분석%라전%마찰인수%뉴구계수
one-way analysis of variance%bolt%friction coefficient%nut factor
针对目前电镀锌螺栓扭矩系数散差大，不利于预紧力控制的问题，基于单因素方差分析理论，通过对不同螺栓强度等级、镀层厚度、钝化层、支撑面硬度的镀锌螺栓进行拧紧实验，找出影响螺栓摩擦因数的关键因素，发现D级钝化层螺栓比C级能承受更大轴向力，可以有效提高螺栓效能。对影响螺栓摩擦因数的关键因素进行控制，通过对控制前后实验数据的对比，发现控制后能有效地减少螺栓扭矩系数的散差，提高镀锌螺栓连接的可靠性。
針對目前電鍍鋅螺栓扭矩繫數散差大，不利于預緊力控製的問題，基于單因素方差分析理論，通過對不同螺栓彊度等級、鍍層厚度、鈍化層、支撐麵硬度的鍍鋅螺栓進行擰緊實驗，找齣影響螺栓摩抆因數的關鍵因素，髮現D級鈍化層螺栓比C級能承受更大軸嚮力，可以有效提高螺栓效能。對影響螺栓摩抆因數的關鍵因素進行控製，通過對控製前後實驗數據的對比，髮現控製後能有效地減少螺栓扭矩繫數的散差，提高鍍鋅螺栓連接的可靠性。
침대목전전도자라전뉴구계수산차대，불리우예긴력공제적문제，기우단인소방차분석이론，통과대불동라전강도등급、도층후도、둔화층、지탱면경도적도자라전진행녕긴실험，조출영향라전마찰인수적관건인소，발현D급둔화층라전비C급능승수경대축향력，가이유효제고라전효능。대영향라전마찰인수적관건인소진행공제，통과대공제전후실험수거적대비，발현공제후능유효지감소라전뉴구계수적산차，제고도자라전련접적가고성。
For the problem of big dispersion of nut factor,which is unfavorable for pre-tightening force control,based on the one-way analysis of variance theory,through the tighten experiments on different strength grade,coating thickness,rota-tional speed,bolt chromate treatment,bearing surface hardness of the bolts,the key factors affecting bolt friction coefficient were found out.It is shown that D chromate treatment bolts can effectively improve the tighten bolt axial force and give full play to the bolt's using efficiency.Through control the key factors affecting bolt friction coefficient,the dispersion of nut factor is effectively reduced and the reliability of connector is improved.
