Classifications of low pressure rubber hose
With the advancement of technology, the spiral guard has entered the vision of more and more people. It is favored by people for its excellent flame retardancy, wear resistance, weather resistance and aging resistance. Today we will learn about its flame retardance.
How to test the flame retardance of spiral guard
Before the flame retardance test experiment begins, you must first prepare some equipment to be used: lighter, fire source, and sheath. In addition, there are ordinary spiral guards and secondary raw material spiral guards as comparison groups.
First, light a candle to create a fire source. Then, burn these three types of guards through the outer flame of the candle in turn. Then observe the burning of the guard after encountering an open flame and whether there is any dripping, and record the data. After a period of time, remove the fire source, observe the flame extinguishing of the guard, and record the situation.
Spiral guard of secondary raw material
After encountering an open flame, it starts to burn immediately, and the burning speed is very fast. And a large amount of black dripping is produced during the burning process. At the same time, a pungent smell can be smelled.
Ordinary spiral sheath
This type of sheath does not start to burn like the above ones when it encounters an open flame. However, it will slowly soften after a period of time. Then it will ignite a bright flame and produce transparent dripping material.
Orientflex flame retardant sheath
Our Orientflex sheath will not burn when it encounters an open flame, and there will be no obvious flame. The flame on the sheath will go out immediately after leaving the fire source. It will not melt if it is ignited for a short time. If it burns for a long time, some molten material will drip.
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