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What is the difference between rubber expansion joint and rubber joint?
- It is divided into 3 kinds: flange type, fixed flange type and thread type by connection. The structure can be divided into single sphere, double sphere and curved sphere. A tubular rubber component is composed of inner and outer layers of rubber, cord and steel ring, which is vulcanized and molded and then combined with a metal flange or a parallel joint. This product can reduce vibration and noise, and can be compensated by thermal expansion and cold contraction due to temperature changes. It is widely used in various piping systems. Rubber joint is a kind of pipe joint with high elasticity, high air tightness, medium resistance and weather resistance. The product uses rubber elasticity, high air tightness, medium resistance, weather resistance and radiation resistance etc., using polyester cord fabric skew high strength, strong stability and the hot and cold composite, after high pressure, mold temperature and curing. As the rubber joint has good comprehensive performance, it mainly acts as shock absorption, noise elimination and noise reduction. Therefore, it is widely used in chemical, construction, water supply, drainage, petroleum, light and heavy industries, freezing, sanitation, plumbing, fire fighting, power and other infrastructure projects.s
Is there any poison in the processing and testing of rubber products? What about the salary?
- There will be some flavor at the time of processing, as well as some fillers, oil will be a little toxic, and some crosslinking agents may be toxic. But now the mixer extruder is mostly closed, so it is common to pay attention to respiratory protection.A mechanical test is usually less toxic, and a glove is enough.If you do thermal testing, such as TGA, DMA, DSC and so on, it will degrade and release small molecules, especially if the aromatic oil is filled, be sure to pay attention to.s
Which kind of rubber has the best wear resistance?
- In addition, it also has good water resistance, air tightness and excellent adhesive properties. Widely used in various kinds of oil resistant rubber, oil resistant gasket, gasket, sleeve, flexible packaging, soft hose, rubber roller, rubber cable printing and dyeing materials, become the indispensable elastic material in automobile, aviation, petroleum, copying and other industries.NBR has excellent oil resistance, and its oil resistance is second only to that of polysulfide rubber and fluorine rubber, and it has the characteristics of wear resistance and air tightness. Ding Qing rubber is the disadvantage of ozone and aromatic, halogenated hydrocarbons, ketones and esters solvents, it is not suitable for insulation.s
What are the common rubber products, please tell me
- Rubber is a high elastic polymer compound, which has high elasticity that other materials do not have, so it is also called elastomer. Its main feature is the enormous molecular weights
How to remove the rubber front?
- Conversely, the product is small, large in quantity, or where it is hard to repair, so you can consider machine trimming.s
How long does the rubber last?
- In addition, aging has ozone aging, weather aging, heat aging and so on. Ding Qing rubber is not resistant to ozone, the time is not long, it will appear aging.s
How can I get rid of the rubber?
- You smell the smell from the vulcanized rubber residues, not much of the flavor is generally placed in a cool ventilated place, you can, and if the smell is large, you can use rubber deodorant, supermarkets generally sells
How do you remove the black dirt on the rubber?
- Apply toothpaste to the stain and brush it again and again as clean as newWith Senna water and kerosene on rubber and iron grinding interpolation results are goodThe black dirt on the rubber can also be removed by diluting it with alcohols
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