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

The electric property of natural rubber is a kind of non polar material, and it is a better insulating material. When the natural rubber vulcanization after the introduction of polarity factors, such as sulfur, accelerator, so that insulation performance.The dielectric properties of natural rubber are a nonpolar substance that is soluble in non-polar solvents and non-polar oils. Natural rubber is not resistant to cyclohexane, gasoline, benzene and other media, non vulcanized rubber can be dissolved in the above medium, vulcanized rubber swelling. Natural rubber insoluble in polar acetone, ethanol, more insoluble in water, resistant to 10% hydrofluoric acid, 20% hydrochloric acid, 30% sulfuric acid, 50% sodium hydroxide and so on.

Q:The difference between silicone tube and rubber tube

First of all, we can find the difference between the material of silicone rubber tube and rubber tube. Smell it with your nose. Silicone doesn't taste. Rubber has a flavor. Silicone is generally more flexible, and rubber is more mechanical.Silica gel tube has high and low temperature (-60 ~ 200 DEG C), environmental protection, non-toxic, excellent heat aging, ozone aging resistance, light aging and aging resistance, soft, arc resistance, corona resistance.

Q:In long-term high temperature environment, silica gel tube and three yuan ethylene propylene rubber hose which is good durability?

Silicone hose is relatively soft, flexible, and looks better than other rubber tube gloss, color is mostly red, blue, translucent and other colors.

Q:What are the production processes and characteristics of high pressure rubber hose?

According to the knitting process, the high-pressure hose is divided into high-pressure steel wire braided hose and high-pressure steel wire winding hose.

Q:What is the difference between the precast beam of the bridge and the method of pulling out the rubber tube after pouring the concrete? What's the difference between design and calculation?

Construction process, in order to avoid concrete into bellows, influence later wear steel strand, construction units generally use PVC and other rubber tube into bellows, in order to double insurance, don't let concrete into. Its length is certainly larger than the length of bellows (750mm at one end for easy operation)

Q:What are the materials used in rubber joints? What are their advantages?

While the three EPDM is ethylene propylene diene hydrocarbon, and non yoke of three yuan is the main characteristic of copolymer, excellent oxidation resistance, ozone resistance and anti erosion ability, also has excellent curing characteristics. Simple speaking is resistant to high temperature.The nitrile rubber by emulsion polymerization at low temperature, excellent oil resistance, high abrasion resistant, good heat resistance, strong adhesion. (oil).

Q:How to determine the parker381 hose joint?

Parker 381 series hose comes with Parker 43 series hose connector. Because the type, material, and surface treatment of hose joints are indistinguishable from the naked eye, these factors directly affect the quality of the hose assembly:1., if the factory internal judgments, according to Parker provided geometric parameters to determine;2., if purchased on the market, it is best to choose Parker authorized dealer (Parker authorized dealer has Parker's power of attorney);

Q:Why should liquefied petroleum gas use strong rubber hose and liner?

In order to remind people of the leakage of liquefied petroleum gas in a timely manner, the processing plant often mixes a small amount of foul odor mercaptan or thioether compounds into liquefied petroleum gas, which is the source of special odor.

Q:How can the rubber tube be used properly and how to use it properly?

The hose burst caused by frequent and severe pressure impact. This situation is not generally under the static pressure caused by too much, but the number and intensity and pressure impact. Engineering machinery in operation, will be repeated in the hydraulic tubing suddenly increased or decreased, which impact on the oil pressure of frequent the damage of the oil seal, resulting in increased, loosening hose leakage and rupture foaming and pipe joint. Therefore, in operation, the valve stem can not be too hard, must be gentle.

Q:My company does high-quality rubber tube, all of the core method, and why use EPDM to do the inner tube, it is difficult to take off the core, please point out! What's the reason?

The core needs to be removed, and if it is too long, the mandrel can be divided into two sections and separated from the 2 sides