发烟

• Purpose : applying to filling for various non - flammable cables , fireproof cables , low smoke non - halogen non - flammable cables , featuring anti - high temperature , flame resistant , non - halogen , smokeles etc
  用途：适用于各阻燃电缆、耐火电缆、无卤低烟阻燃电缆的填充，具有耐高温、耐火焰、不含卤、不发烟等特点。
• Compared with other flame retardants , it has better function on restraining of the producing of smoke and sulfureted hydrogen , with the advantage of no contaminate , no corrosion and low cost
  氢氧化镁属于添加型无机阻燃剂，与同类无机阻燃剂相比，具有更好的抑制发烟和硫化氧生成的作用，且无毒害、无腐蚀、价格低廉。
• Some additives such as graphite , ptfe and csno3 can improve obscuring effect of smoke screening in infrared waves . furthermore , some formulas entered nano ferric oxide can largely improve the effect of infrared extinction
  指出金属镁粉优于其它金属粉；三氧化二铁和二氧化钛是较好的氧化剂选择；石墨、聚四氟乙烯和硝酸铯的添加有利于提高发烟剂红外遮蔽能力。
• Compositions and ratio of a series of formulas of smoke - producing mixtures are fixed by selecting experiments of metals , oxides and additives . results of the experiments have testified that mg , fe203 and ti02 are better than other metals and metal oxides
  通过金属粉的选择试验、氧化物选择试验、添加物质选择试验、其它发烟物质的选择试验以及配比调整试验，确定了一系列发烟剂配方的组成及配比。
• The anton paar density and sound velocity analyzers combine two independent parameters , density and sound velocity , to cover a wide range of applications such as quality control in beer and soft drink production , concentration determination of sulphuric acid and oleum or ternary solutions
  安东帕密度和声速分析仪结合两种独立参数- -密度和声速，覆盖大范围的应用如：啤酒和软饮料生产中的质量管理、硫酸、发烟硫酸或三元混合液体浓度的测定。
• Besides the excellent electric ， this cable has many advantages too , such as anti - corrosion , waterproof , less smoke , not no product halolide gases that are harmful to mankind , no spreading combustion , when laying out , it is not limted by dropping , so it can be layed out in any place even if it is a vertical place
  电缆除具有可靠的电气性能外，还具有较强的防化学腐蚀性，耐火性好，发烟量少，不产生对人体有害的卤化氢气体，不延燃性优异；电缆不受敷设落差的限制，可在任何落差甚至垂直的场合敷设。
• In this paper , the basic and important parts are studied . for example , the capacity of jet fan in tunnel , the flux distribution and resistance loss in the chimney . this approach is capable of modeling multi - dimensional , time dependent nature of fire in a road tunnel , this paper presents the critical ventilation velocity in various heat release rate and smoke release rate for jingfu highway
  以京福高速公路美菰林隧道的结构参数为依据，当隧道内发生火灾时，对隧道烟雾随时间的发展扩散过程进行了动态的模拟与研究，得出了不同的火灾放热率、发烟率的情况下，控制隧道烟雾回流的临界风速这一关键数据，为隧道突发火灾时的紧急通风控制提供参考。