WS2涂层

<div style="line-height: 16pt; layout-grid-mode: char"><span style="font-family: verdana, geneva, sans-serif"><span style="font-size: 9pt"><b><span style="color: black"><font face="">发动机中可用WS2处理的零部件:</font></span></b></span></span></div> <div style="line-height: 16pt; layout-grid-mode: char"><span style="font-family: verdana, geneva, sans-serif"><span style="font-size: 9pt"><span style="color: black"><font face="">活塞： </font></span></span></span></div> <div style="line-height: 15pt; layout-grid-mode: char"><span style="font-family: verdana, geneva, sans-serif"><span style="font-size: 9pt"><span style="color: black"><font face="">在发动机运转过程中，活塞工作时温度很高，顶部达600-700K，在气缸内以很高的速度（8~12m/s）住复运动，活塞在这种恶劣的条件下工作，会加速磨损，一般使用高强度铝合金，如镀上一层WS2膜，则可降低磨损，延长寿命。WS2本身可在高温下保持润滑功能。</font></span></span></span></div> <div style="line-height: 15pt; layout-grid-mode: char">&nbsp;</div> <div style="line-height: 15pt; layout-grid-mode: char"><span style="font-family: verdana, geneva, sans-serif"><span style="font-size: 9pt"><span style="color: black"><font face="">活塞环： </font></span></span></span></div> <div style="line-height: 15pt; layout-grid-mode: char"><span style="font-family: verdana, geneva, sans-serif"><span style="font-size: 9pt"><span style="color: black"><font face="">活塞环在高温、高压、高速和润滑极其困难的条件下工作，尤其是第一道环的工作条件最为恶劣。因此，活塞环一直是发动机上使用寿命最短的零件。活塞环工作时受到气缸中高温高压燃气的作用，温度很高（第一道环温度高达600K），同时在气缸内随活塞一起作高速运动，加上高温下机油容易变质，使活塞环的润滑条件变坏，难以保证良好的润滑，因而磨损严重。目前用合金铸铁（在优质灰铸铁中加入少量铜、铬、钼等合金元素），第一道环镀铬，其余环一般镀锡或磷化。如果再镀上WS2干膜润滑剂，则可解决磨损和高温润滑问题。</font></span></span></span></div> <div style="line-height: 15pt; layout-grid-mode: char">&nbsp;</div> <div style="line-height: 15pt; layout-grid-mode: char"><span style="font-family: verdana, geneva, sans-serif"><span style="font-size: 9pt"><span style="color: black"><font face="">活塞销： </font></span></span></span></div> <div style="line-height: 15pt; layout-grid-mode: char"><span style="font-family: verdana, geneva, sans-serif"><span style="font-size: 9pt"><span style="color: black"><font face="">用低碳合金钢和低碳钢制成，外表面经渗碳淬火处理以提高硬度，精加工后进行磨光。要耐磨性好、光滑，WS2可达到此要求。</font></span></span></span></div> <div style="line-height: 15pt; layout-grid-mode: char">&nbsp;</div> <div style="line-height: 15pt; layout-grid-mode: char"><span style="font-family: verdana, geneva, sans-serif"><span style="font-size: 9pt"><span style="color: black"><font face="">连杆： </font></span></span></span></div> <div style="line-height: 15pt; layout-grid-mode: char"><span style="font-family: verdana, geneva, sans-serif"><span style="font-size: 9pt"><span style="color: black"><font face="">连杆大头孔内装的瓦片式滑动轴承，简称连杆轴瓦。目前多采用薄壁钢背轴瓦，在其内表面浇铸有耐磨合金层，背面有很高的光洁度。如用WS2处理内表面，可以使耐磨能力更上一层楼。</font></span></span></span></div> <div style="line-height: 15pt; layout-grid-mode: char">&nbsp;</div> <div style="line-height: 15pt; layout-grid-mode: char"><span style="font-family: verdana, geneva, sans-serif"><span style="font-size: 9pt"><span style="color: black"><font face="">曲轴： </font></span></span></span></div> <div style="line-height: 15pt; layout-grid-mode: char"><span style="font-family: verdana, geneva, sans-serif"><span style="font-size: 9pt"><span style="color: black"><font face="">曲轴是发动机最重要的机件之一，工作时曲轴是高