<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="">發(fā)動機(jī)中可用WS2處理的零部件:</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="">在發(fā)動機(jī)運(yùn)轉(zhuǎn)過程中，活塞工作時(shí)溫度很高，頂部達(dá)600-700K，在氣缸內(nèi)以很高的速度（8~12m/s）住復(fù)運(yùn)動，活塞在這種惡劣的條件下工作，會加速磨損，一般使用高強(qiáng)度鋁合金，如鍍上一層WS2膜，則可降低磨損，延長壽命。WS2本身可在高溫下保持潤滑功能。</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="">活塞環(huán)： </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="">活塞環(huán)在高溫、高壓、高速和潤滑極其困難的條件下工作，尤其是第一道環(huán)的工作條件最為惡劣。因此，活塞環(huán)一直是發(fā)動機(jī)上使用壽命最短的零件?；钊h(huán)工作時(shí)受到氣缸中高溫高壓燃?xì)獾淖饔茫瑴囟群芨撸ǖ谝坏拉h(huán)溫度高達(dá)600K），同時(shí)在氣缸內(nèi)隨活塞一起作高速運(yùn)動，加上高溫下機(jī)油容易變質(zhì)，使活塞環(huán)的潤滑條件變壞，難以保證良好的潤滑，因而磨損嚴(yán)重。目前用合金鑄鐵（在優(yōu)質(zhì)灰鑄鐵中加入少量銅、鉻、鉬等合金元素），第一道環(huán)鍍鉻，其余環(huán)一般鍍錫或磷化。如果再鍍上WS2干膜潤滑劑，則可解決磨損和高溫潤滑問題。</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="">活塞銷： </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="">用低碳合金鋼和低碳鋼制成，外表面經(jīng)滲碳淬火處理以提高硬度，精加工后進(jìn)行磨光。要耐磨性好、光滑，WS2可達(dá)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="">連桿： </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="">連桿大頭孔內(nèi)裝的瓦片式滑動軸承，簡稱連桿軸瓦。目前多采用薄壁鋼背軸瓦，在其內(nèi)表面澆鑄有耐磨合金層，背面有很高的光潔度。如用WS2處理內(nèi)表面，可以使耐磨能力更上一層樓。</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="">曲軸： </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="">曲軸是發(fā)動機(jī)最重要的機(jī)件之一，工作時(shí)曲軸是高