- The cause of rubber coke is analyzed
- 发布者：澳门威尼斯人手机版发布时间：2018-05-28 17:14点击数：
Coke burning is a kind of advanced rubber vulcanization behavior, namely in the various processes for sulfide deposit (extruder, rubber, rubber mixing, molding, calendering) appeared in the process of sulfide in advance of the phenomenon, reason can also be called early sulfide - large Angle conveyor beltCauses of coke burning phenomenon:(1) bad management during the storage of rubber materials. After the remaining coke burn time is used up, there is still no need to pile up.The harm of coke burning: the processing difficulty, can cause the product to disconnect the head place and so on, affect the physical performance of the product and the outer surface smooth and clean flatness.(2) it is too thick to get out of the film when the mixture is unloaded, the heat dissipation is not good, or it is not cooled, that is, the accumulation of storage in a hurry, and the poor ventilation in the warehouse can cause heat accumulation, which can also cause coke burning.-尼龙输送带(3) for some kinds of rubber that need to be plasticized, the plasticity is too low and the glue is too rigid, causing the rubber to heat up sharply.The rubber mixing machine or other roller device (such as the back mixer, calender) is too high, and the cooling is not enough. It can also cause the spot burning.(4) improper formulation design, imbalance of vulcanization system, supernormal dosage of promoters and vulcanization agents. Methods for preventing coke burning:
(1) manage the inventory of the semi-斗提机输送带finished products of the glue materials, and each batch should be followed by the "advanced first out" depositing principle, and stipulate the maximum retention time of each vehicle and shall not exceed it.The warehouse should have good ventilation.
(2) in order to adapt to high pressure, high temperature and high speed refining process, the anti-coke agent can be used in the formula (0.3 ~ 0.5).The design of glue material should be suitable, such as the promotion agent can take as many as possible and the way. 澳门威尼斯人官网
(3) in order to prevent the operation temperature from overreaching the tipping point, the cooling measures should be strengthened for the rubber in the rubber and the follow-up process, mainly through the temperature of the strict control machine, the roller temperature and the guaranteed circulation of the cooling water.