Řetězy Donghua - produktový katalog 2017

■ 润滑剂 ■ Lubricant ■ 推荐的不同工作温度下的润滑剂应具备的粘度 Recommended viscosity 润滑剂的选择首先取决于润滑方式。 First of all, the selection of an appropriate lubricant depends on the type of lubrica- tion. 如右图所示，低粘度的矿物油特别适合链 传动 Just as the right diagram shows, low viscosity mineral oils are particularly suitable for chain drives. 若使用温度更高（如炉箱链）或使用环境 很恶劣、泥浆四溅等开式或重载低速链传动 时，二硫化物（MoS 2 ，WS 2 ）或硒化物 （MoSe 2 ，WSe 2 ）无论是用作添加剂还是 直接喷润都能提高润滑性能。 低粘度或滴点在70℃左右的润滑脂同样适 用于人工润滑。在某些特殊的场合使用液化的 润滑脂进行喷润。不稳定的物质挥发完后即可 开始工作。 无论采用何种润滑剂和润滑方式，最重要 的问题是使润滑剂能及时充分均匀的分布到构 成摩擦副的链节铰链处的间隙中（销轴-套筒 之间，套筒-滚子之间）。 For higher temperatures (e.g. furnace chains) or severe operating conditions, mud spattering open-type etc. or heavy-duty low speed chains, graphite or molybdenum disulfide (MoS 2 ) applied either as additive or spray will improve lubrication performance. Low-viscosity or the grease products with a drop point of 70°C are also suitable for manual lubrication. Liquidized grease may be sprayed on the chains in special conditions and chains can start running immediately after the evaporation of the volatile carrier substance. No matter which kind of lubricants and lubrication methods choosed, the most important issue is to ensure the lubricant flow into evenly (between pin and bush, between bush and roller). Ambient temperature ℃ 环境温度 Viscosity of lubricant 润滑剂粘度 0.1 0 0.2 0.3 运行时间t Operating time 链条磨损伸长率% Chain elongation % 不上油 not lubricated 油脂润滑 grease lubrication 矿物油润滑 mineral oil lubrication a) 错误的给油方式 Incorrect method b) 正确的给油方式 Correct method -5℃～+25℃ N100 (ISO VG 100) N150 (ISO VG 150) N220 (ISO VG 220) +25℃～+45℃ +45℃～+60℃ 润滑选择 Selection of lubrication www.dhchain.com 578 东华链条集团 DONGHUA CHAIN GROUP