Humectant Note: riser heat insulation is not good cause heat loss from the top of the riser into the air. The heat will quickly disappear, humectants, and the riser or both sides by sand insulating riser sleeve wrap, so heat loss slower than the top, carbonized rice husk insulation agent during solidification will form "V" shaped necking, to take effect mouth feeding efficiency. Meanwhile riser can cause premature solidification crusts, steel humectant manufacturers, the impact of the gas contained in the casting of precipitation and floating slag lead to increased scrap rates. Steel riser shall be designed to comply with two basic principles: First, take the mouth of steel solidification time is longer than the solidification; second riser should have sufficient supplies of liquid steel castings. And these two principles are closely related to the riser of liquid steel heat loss rate. Therefore, how to strengthen the riser steel liquid insulation, steel humectant price, as much as possible to reduce the cooling rate, longer duration of molten steel is cast worker goal. Steel humectants, Long-metallurgy (certified), a humectant provided by Long-Metallurgical Materials Co., Ltd. Anyang. Anyang-Lung Metallurgical Materials Co., Ltd. (www.anyangyejin.com) is Anyang, ferroalloy and products leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Long-metallurgical leadership in the staff warmly welcome all inquiries negotiations to create the Long-metallurgical better future.