Q:What is the essential difference between natural rubber and three yuan ethylene propylene rubber?

The strength of natural rubber in the elastic material, natural rubber, rubber, rubber, vulcanized rubber with higher intensity. The tensile strength of uncured rubber is called Green strength, and the Green strength of natural rubber is up to 1.4~2.5Mpa. The proper Green strength is necessary for rubber processing and forming. The tear strength of natural rubber is also higher, up to 98kN/m, and its abrasion resistance is better. The reason for the high mechanical strength of natural rubber is that it is self reinforcing rubber. When stretched, the macromolecule chains tend to form crystals in the direction of stress.

Q:What material is the rubber joint used in the desulfurization pipeline? What's the difference?

If you choose the ordinary material or other special materials, it will inevitably be broken. Because of the different materials of rubber joints, the application environment is different.

Q:What should I pay attention to when rubber tube is in storage?

The phenomenon of natural vulcanization caused by long-term exposure to corrosive gas or prolonged exposure to sunlight is called aging of rubber. The main phenomena are increasing of self weight, volume expansion and strength reduction.

Q:What are the types of hose connectors?

Joint classification of common are: expansion joints, quick couplings, withhold joints, removable fittings, compression fittings, flared joint is in welded joints.

Q:How do the rubber tubes fit into the galvanized pipe?

If the rubber tube is outside the galvanized pipe, when the rubber is ordered, the inside diameter shall be greater than the outer diameter of the galvanized pipe. If the rubber tube is inside the galvanized pipe, when the rubber is ordered, the outer diameter of the rubber pipe will be galvanized and the inner diameter of the galvanized pipe will be inside

Q:Can the spring hose joint be connected to the tap?

You don't know what is the use of the material pipe, generally divided into PB and PPR, two kinds of pipe welding temperature requirements are not the same, so don't listen to others with the same welding machine can speech, it is extremely irresponsible.

Q:Is there a tolerance standard for rubber tubes in length?

Generally speaking, the requirements of diameter and wall thickness are more stringent.The diameter is usually the inner diameter of the hose.Generally speaking, the length is not high, and the unwritten rule for foreigners is "+ 2~3mm".

Q:What are the gas hoses?

Go straight to the gas.There are 2 kinds of gas hose: one is made of black rubber thickened tube, and the other is stainless steel hose.Stainless steel hose is better, more than 10 years of life. Basically don't use it.Rubber life of 1 and a half years, 2 years later aging brittle, need to change.

Q:How often do the oil - resistant rubber pipes undergo atmospheric pressure testing?

Low temperature bending test at low temperature: hose clamp on rigid torsion wheel diameter hose diameter 12 times, for 6 hours at a low temperature, twisted 180 degrees within 12s when the measured torque and the standard temperature measured torque ratio. Low temperature bending: hose clamped in the diameter of the hose within 12 times the torsion wheel, parked at low temperatures for 24 hours, in the 10s to reverse 180 degrees, check whether or not the internal and external plastic brittle fracture and damage. Test of low temperature brittleness measurement hose is the most simple specimen should be bent 90 degrees at low temperature, or a hose after freezing compressed 1/2 to see whether the embrittlement, another method is to use a certain weight of the heavy hammer falls freely, to see if the specimen embrittlement impact specimen.

Q:Why does Br2 corrode rubber tubes?

Bromine elements need to be sealed with water to prevent steam escaping and harm the human body. Oxidizing, there are a variety of variable valency, under normal temperature and weak water reaction, generating hydrobromic acid and bromate. Heating increases the speed of reaction. Hydrobromide is a strong acid with an acid stronger than that of hydrogen chloride. Bromine is commonly used in organic synthesis.