Inner Tube Introduction

inner tube

The inner tube is commonly known as the inner Tire. Refers to an annular elastic tube with a tire valve for maintaining the inner pressure of the tire. Valves are used to inflate and maintain a constant pressure in the air inside the tube. The inner tube should have good air tightness, heat resistance, elasticity, aging resistance and small permanent deformation. Generally made of butyl rubber.

The inner tube is a gas-receiving container for air cushioning. It is used to assist auxiliary air pressure containers in the inner cavity of cars, motorcycles, bicycles, and rickshaws. It can be divided into natural rubber inner tube and butyl rubber inner tube according to the main material contained therein. The new product is a pure butyl rubber inner tube, such as "Baolujie" pure butyl rubber inner tube produced by Zhengzhou Aode Rubber. Butyl rubber inner tube products: refers to butyl rubber, butyl recycled rubber as the main raw material, adding EPDM rubber and fillers, auxiliaries, anti-aging agents and other accessories, according to a certain percentage of formula, after mixing, smelting , out of type, curing stereotyped into various types of car inner tube products.

Definition

Inner tube;tube

Butyl rubber inner tube belongs to industry: chemical rubber products, tire industry.

Applicable Market: Butyl rubber inner tubes can be classified into inner tubes for trucks, inner tubes for light trucks, inner tubes for construction vehicles, inner tubes for motorcycles, inner tubes for bicycles, and inner tubes for rickshaws.

The main performance of butyl rubber inner tube: Butyl rubber inner tube rubber has good self-closing property and high airtightness. After the inner tube is loaded, the air pressure is above 8 MPA. The high airtight carcass reduces the natural gas leakage, and the inflation frequency is lower than that of the natural rubber inner tube during use. It is also more fuel-efficient during driving. The high temperature resistance of butyl rubber inner tube is superior to that of natural rubber inner tube. When the automobile is running at high speed for a long time, the temperature of the inner cavity of the tire is very high, so that the rubber of the inner tube is rapidly vulcanized, which affects the service life. The inner tube of butyl rubber is more resistant to aging and the use time. Longer.

Category

Divided by tire use

For example, in China's national tire standards, the United States tire rims manual, European tire rim standards, Japanese tire standards and international tire standards are classified by purpose, can be divided into the following types:

1. Car Tire - It is a tire mounted on a car. It is mainly used for high-speed exercise on a good road. The maximum travel speed is up to 200 km/h. It requires comfortable ride, low noise, good manoeuvrability and stability. Sex. Most of the tire structures use radial structures. According to the requirements of the driving speed, it is divided into different series. In the standards and manuals, 95, 88 series are common bias tires, and 80, 75, 70, 65 series are radial tires.

2. Light-duty truck tires - Usually those truck tires with a rim diameter of 16 inches or less and a section width of 9 inches and above. These types of tires are mainly used on roads, and travel speeds generally reach 80 to 100 km/h.

3. Loads and bus tyres are generally used for trucks with rims 18 to 24 inches in diameter, 7 inches in width and above, dump trucks, various special purpose and trailers. The roads on which it is used are relatively complicated, with good asphalt roads, poor gravel roads, dirt roads, muddy roads, ice and snow roads, and even no road conditions, etc. The travel speed is generally not more than 80km/h.

4. Construction Machinery Tires - Construction machinery tires are installed on construction machinery vehicles for specialized operations such as loaders, bulldozers, excavators, leveling machines, road rollers, and stone work machines. Travel speed is not high, but the road conditions and load performance used are demanding. Tires are mainly used for biased tire structures, but companies such as Michelin in France (Cantonese and Mandarin) are also adopting a meridian structure. Divided from the width of the tire section can be divided into two series of standard tires and wide-base tires.

5. Off-road car tires - Off-road vehicles are driven by front and rear wheels. Off-road vehicle tires are mainly used on bad roads such as deserts, muddy grounds, loose soils, or other non-road roads. They require tires with high passing performance. Off-road tires often use low pressure, and some use pressure-adjusting tires, depending on road conditions. To adjust the size of the tire pressure. In order to improve off-road passability, measures such as widening the tire section and rim width, and reducing the rim diameter are generally adopted in order to increase the ground contact area and reduce the ground pressure. In addition to the tire structure bias tire structure, but also with a meridian structure.

6. Agricultural and forestry machinery tyres - Agricultural tyres are mainly used on tractors, Combi harvesters and farm implement vehicles. The forestry machinery tires are mounted on forestry tractors and forestry machinery, and operations such as felling, skidding, shoveling and excavation of forestry are carried out. These two kinds of tires are characterized by low speed requirements, but they are used in harsh conditions. They often run on poorly-ground field roads and hard-to-hold or gravel roads, or even roads without roads. The tires are easily scratched. Or cut it. Another feature is that the intermittent operation, mileage, but the use of a longer period, it is required that the tire has a good resistance to flex cracking and aging resistance. Tires are mainly diagonal structures, but they also have a meridian structure.

7. Industrial vehicle tires - mainly used for pneumatic tires, semi-solid tires, and solid tires on industrial vehicles. Sub-car tires, forklift tires and flatbed tires.

8. Motorcycle tires - tires for motorcycles. Including motorcycle tires, light motorcycle tires and small wheel tires.

9. Aviation tires - used for pneumatic tires on aircraft.

10. Special vehicle tires - including cannon tires, tank tires, armored vehicle tires, desert tires, explosion-proof vehicle tires, etc.

11. Tire tyres - pneumatic tyres for bicycles, tricycles and trolleys. Divided into skew lines and radial tires. The fundamental difference between radial tires and skewed tires is the carcass. The carcass of the skew line tires is a diagonally crossed ply; while the carcass of the radial tire is a polymer multi-layer cross material, and the top layer is steel cords braided by several steel wires, which can reduce the tires being pierced by foreign objects. Chance.

The diagonal tire cords are arranged diagonally, so it is named. Features are tread and sidewall strength, but the sidewall stiffness is greater, poor comfort, due to high-speed ply movement and friction between the large, not suitable for high-speed driving. With the continuous improvement of radial tires, bias tires will be basically eliminated. The cord alignment direction of the radial tire is the same as the tire meridian section, and its ply is equivalent to the basic skeleton of the tire. Due to the large tangential forces that the tires are subjected to during driving, in order to ensure the stability of the cords, there are several layers of belts (also called tie-in layers) made of high-strength, non-stretchable materials on the outside. The direction of the cords and the meridian section are at a large angle. From the design point of view, skew line tires have many limitations, such as due to the intense friction of the crossed cords, which makes the carcass easy to generate heat, thus accelerating the wear of the tread pattern, and its cord layout does not provide excellent performance. Handling and comfort; while the steel belt in radial tires has better flexibility to adapt to the irregular impact of the road, but also durable, its cord structure also means that in the car is less than the oblique line Much more friction, resulting in longer tread life and better fuel economy. At the same time, the characteristics of the radial tire itself make it possible for the tire to have no inner tube. Tubeless tires have a recognized advantage, that is, when the tire is punctured, it does not burst like a skew line tire with an inner tube (this is very dangerous), but rather it allows the tire to maintain air pressure over a period of time, improving the car Driving safety. In addition, radial tires have better grip than diagonal tires. Compared with ordinary diagonal tires, radial tires are characterized by high elasticity, good wear resistance, low rolling resistance, good adhesion performance, good cushioning performance, large carrying capacity, and not easy piercing; the disadvantage is that the sidewalls are easy to crack, due to large lateral deformation. As a result, the lateral stability of the vehicle is slightly poorer, and the manufacturing technology requires high costs.

Inner tube storage method

1. The inner tube of the package should be placed vertically on the shelf. The inner tube that has been placed for a long time should be periodically rotated to change the fulcrum so as to avoid deformation of the inner tube.

2. When the inner tube is in storage, the inner tube shall be stored in batches according to the time of production or storage, first-in, first-out, and in sequence.

3, tube should be stored in a dry warehouse, to avoid the sun and rain, should not be excessive ventilation. Large-scale inner tube depots should be equipped with thermometers and hygrometers. The inner tube temperature should be controlled between -10 degrees and 30 degrees, and the relative humidity should be 50% - 80%.

4. When the inner tube is stored together with the rim, the inner tube should be slightly inflated so that the tube can withstand a certain amount of pressure.