Rubber kraal pad five major identification methods

by:Desing      2020-04-13
In recent years, rubber kraal mat have been widely used in industrial and mining enterprises, transportation and building ground, etc. So rubber kraal mat is how to identify? Below will give you a simple explain their main identification method: 1, rubber resistance to medium weight experiment: can be sampled from the finished product, soaked in the selected one or more of the following medium, a certain temperature time after weighing, according to the weight variation rate that sort of material hardness. In 100 oil soaked for 24 hours, for example, NBR, fluorine rubber, ECO, CR quality and hardness of the rate of change is very small, and NR, EPDM, SBR weight more than double and hardness change is very big, volume expansion is obvious. 2, hot air aging experiments: from the finished product sampling, in ageing oven aging day, observed after aging phenomenon. Aging can be hierarchical gradually heating up. NR and SBR CR, such as 150 degrees will be brittle fracture, NBR EPDM and elastic. Ordinary NBR rises to 180 degrees will be brittle fracture; HNBR and 230 degrees will be brittle fracture, fluorine rubber and silica gel still has good elasticity. 3, burning method: take a few samples, in the air to burn, the observed phenomenon. Generally, fluorine rubber, CR, CSM from fire since the interest rates, even burning flame is much smaller than general NR, EPDM. Of course, if you look carefully, combustion state, color, smell will also provide a lot of information for us. NBR/PVC and rubber, for example, when there is fire fire waves splash, there seems to be the water, from self-extinguishing fire, smoke concentration and acidity. It's important to note that sometimes add flame retardant but do not contain halogen glue will from self-extinguishing fire, this is to use other way further inferences. 4, test: the proportion of using electronic said or analytical balance, precisely to 0. 01 grams of the can, plus a glass of water, a human hair. In general fluorine rubber proportion is the largest, 1. More than 8, also the CR of ECO in 1. The proportion of 3 or more obvious big can consider is the glue. 5, low temperature method: sample from the finished product, with dry ice and alcohol making an appropriate low temperature environment. The samples in 2 - low temperature environment 5 minutes, feel soft and hard degree at selected temperatures. Such as - 40 degrees, as well as resistance to high temperature oil resistant silicone and fluorine rubber, silicone is more soft. Rubber kraal mat
Custom message
Chat Online
Chat Online
Chat Online inputting...