Originally a surgeon, he was good at medical rubber molding. He saw that the solid rubber wheel of his son's bicycle bumped badly on the stone road, so he made a pneumatic tire with a tube inflated through the valve and coated with rubber as a protective layer. This kind of pneumatic tire is wrapped around the wheel. To repair the puncture hole of the inner tube, it is necessary to soak and glue it with benzene first, and then glue it after repair.
This new tire was laughed at by people at first, but his son rode it and won the first place in the competition, so people paid attention to this invention. Dunlop applied for a patent for his invention, gave up his veterinary career, established the world's first tire factory and began to produce rubber tires. From 65438 to 0890, Deng Lupu Rubber Company was established to deal in bicycle tires, which promoted the development of bicycles and automobiles.
The development of tires is highly dependent on resources;
The tire industry takes rubber as the main raw material, with carbon black, skeleton materials and rubber additives as auxiliary materials. The cost of raw materials accounts for a high proportion in the total cost of tire production, which makes the overall development of tire industry highly dependent on rubber, oil and other resources. In the total cost of tire production, the cost of raw materials accounts for more than two thirds, as high as 69%.
Other expenses account for only 365,438+0%. In the breakdown of raw material cost, the raw material cost of rubber accounts for 50% of the total tire production cost, of which the cost of natural rubber accounts for about 37%, the cost of synthetic rubber accounts for about 13%, and the cost of raw materials such as cord fabric, carbon black and steel wire accounts for about 19% of the total tire cost.
Natural rubber is made from latex of natural rubber tree. Because natural rubber trees have extremely high requirements on the natural environment, the planting areas are mainly distributed within latitude 10, which leads to the relative scarcity of natural rubber resources and the serious shortage of global natural rubber production capacity, which is difficult to meet the growing demand for natural rubber.
Therefore, the high dependence on the global scarce natural rubber resources directly affects the development of the tire industry through the fluctuation of natural rubber production capacity and price. In addition, because synthetic rubber, carbon black and other raw materials are mainly made of petroleum, steel wire is obtained from iron ore.
Therefore, the development of the tire industry is also highly dependent on resources such as oil and iron ore. A small adjustment of the prices of oil and iron ore may cause large fluctuations in the production costs and product prices of the tire industry.
Reference to the above content: Baidu Encyclopedia-john boyd dunlop
Baidu encyclopedia-tire