Different Rubber Seal Rings

The main function of the seal ring is to prevent the oil, water and decay and thus to seal the gas. Simply speaking, it is used to prevent the leakage.

Although the general function is similar, different seal rings still have their specific functions. O-ring is mainly applied for the static seal and alternating motion seal. When it is used in the orbiting seal, it can only be used in the equipment with low speed. As for the V-ring, it is often installed groove in the outer circle or inner circle.We always have three type of rings ,V,U,Y,all of their details as follows:

1.V-ring
It is used in the alternating motion. Its section is V-shaped. It is seldom used alone. In normal situation, it is often combined with plunger ring, supporting ring and several V-seal rings. The numbers of this ring depend on the sealing pressure. The V-seal ring is molded by the rubber fabric or pure rubber mold. Nitrile -butadiene rubber is often used as the sizing material. As for the chuck ring and supporting ring, they are often pressed by the hard rubber fabric or plastics. It is said that this combination is mainly applied in the following equipments, such as plunger or piston of the heavy equipment. Meanwhile, because this combination is characterized by the good stability and abrasive resistance and it also can prevent the seal ring into the gap, it is the best seal tool even though the working condition is very harsh. What's more, this ring is applicable for the medium, such as hydraulic oil, water and emulsified liquid. The suitable pressure and temperature are separately 40 MPa and -30~120 Celsius temperature.

2.U-ring
This ring section is U-shaped. So it is called U-ring. It can be separated into two kinds, namely rubber type and wrapped type. Generally speaking, the wrapped type is usually combined with a rubber supporting ring. This seal ring is mainly used in the cylinder rod of a fluid cylinder and its medium is liquid oil, water and emulsible oil. Because the coated fabric has the good surface structure and can keep the ideal lubrication when the mental slides, this ring is of great help to reduce the friction and improve the service performance. As for the pure rubber U-ring, its working condition is similar to the Y-ring.

3.Y-ring
As a kind of rubber seal ring s used in the alternating motion, Y-rubber seal ring's section is Y shape. So it is called Y-ring for short. In normal situation, it is applied in the operating system for the fluid pressure or gas pressure. It is very simple in structure and the effectiveness of seal is quite good. Its applicable working pressure and temperature are separately 16MPa and -30~120 Celsius temperature.

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Automotive Roundup October From Australia

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Janpan Auto Sales Post First Rise Since Quake:Japan's carmakers are finally recovering after the earthquake and tsunami that rocked the country in March of this year severely disrupted the automotive industry supply chain.

New car, truck and bus sales rose 1.7 per cent in September to 313,790 vehicles, according to the Japan Automobile Dealers Association.

It was the first year-on-year rise in sales in 13 months and comes after figures showed higher auto production and exports during August.

Auto sales in the September 2011 to March 2012 period will increase by 17.4 per cent compared to a year ago, according to the Japan Automobile Manufacturers Association.

In September, Toyota saw sales volumes rise 0.7 per cent, mainly off the back of a 59.9 per cent increase in deliveries of its luxury Lexus brand.

Honda posted a 1.6 per cent sales gain while Nissan actually saw sales dip by 7.7 per cent year afer year.

Gap between automobile exports and imports may continue to grow:China will continue to import more passenger vehicles than it exports, figures indicate.

Imports totalled 316,177 units in August, up 83 per cent on last year, according to data from the China Association of Automobile Manufacturers collected by chinanews.com.

At the same time, the level of exports rose just 37 per cent to 223,776 units.

Honda's Thai production underwater as floods hit Japan firms:Japan's big auto companies faced severe disruption to production in Thailand as the country is hit by some of the worst flooding in decades.

Toyota said it would be forced to close three plants, accounting for around eight per cent of global production.

Meanwhile, Honda could lose up to 60,000 units of production. Plants in Japan are already operating at full capacity to make up for the earthquake and tsunami in March, leaving little room to pick up the slack.

"Capacity utilisation in Japan is already high to meet post-earthquake recovery demand, so Honda's Japanese plants may not be able to supply sufficient volumes," Nomura analyst Masataka Kunugimoto said a report.

WRAPUP 4-Daimler, VW feel chill of Europe car slowdown:Daimler AG and Volkswagen have delivered a pessimistic outlook for Europe's carmakers as the eurozone debt crisis hits.
Sales of Daimler's Mercedes-Benz brand fell two per cent in Western Europe, denting the firm's third-quarter profits.

The firm said the region has "little sign of any significant growth impetus".

Volkswagen said: "The strained debt situation in certain eurozone countries and the end of subsidy programs will have a negative impact on demand for new vehicles in many western European countries."

Truck sales in Europe actually rose 4.5 per cent in September, according to industry group ACEA, though Volvo is preparing to cut output in anticipation of lower demand in Europe and Scania has issued a similar warning if sales fall.

New technology:Marine Rubber Airbag For Ship Launching and Landing

As we all know rubber products is widely used in our daily life,however they are also used in other fileds.

• Rubber air-bag design scientific and reasonable to the pocket of rubber, prefabricated or site side of the finished product, each component of good design of the tiles and rubber airbag simple operation, save labor, save time, save the material.

• Rubber air-bag has a good performance of aging resistance, service life long rubber airbag functions using synthetic rubber, natural rubber and the reinforcing fiber layer is made from sulfur. A very good resistance to the strength and elasticity of the release, flexibility, rubber airbag meet different working conditions in the use of the building.

• Rubber airbag current temperature - 10 degrees Celsius range 90 degrees Celsius, which is covered by the rubber material used to change airbag.  

• The rubber bag Bridges site for the construction of a simplified supply conditions of the concrete beams, quarry tiles concrete components, because the use of the rubber bag, the weight of the parcel of prestressed light for more 20%, thus reducing the weight of the upper structure of the building, pile foundation can shorten the span increases, a safe and convenient place on the building.

• The stock rubber technology building, a simple, safe, sanitary use a rubber bag, just a couple of simple tools, no particular process.   

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