The world s first bicycle was made of what material

Wooden material.

At the end of the 18th century, the Frenchman Sifrak invented the first bicycle. The earliest bicycles were made of wood, and their structure was relatively simple, with neither a drive nor a steering device, and the rider pedaled his feet, and had to get out of the bike and move the bike when changing aspects. Even so, when Sifrak rode the bike for a ride around the park, those present were amazed and amazed.

Now, like a tidal wave, bicycles are all over the world and entering every household. But few people know that the bicycle was invented by a forester named Dreis (1785-1851) in Germany.

Dress, who had to walk from one forest to another every day, had to walk from one forest to another every day, and the hard work of walking for many years aroused his desire to invent a means of transportation. He thought: If people can sit on wheels, won't they go faster!

And just like that, Dresse began designing and building bicycles. He made a wheeled car out of two wooden wheels, a saddle, and a handlebar that was attached to the front wheel for control. A person sits in a car and uses his feet to pedal the ground to drive the wooden wheels to move.

And just like that, the world's first bicycle was introduced.

In 1817, Dresse took his first bicycle tour, and was ridiculed and ,...... along the wayHe was determined to make such a mockery with facts. In one race, he rode a distance of 4 hours, but a horse-drawn cart took 15 hours. Still, no manufacturer wants to produce such a bike.

In 1839, the Sugolan Macmillen invented the pedal and mounted it on the front wheel of the bicycle, which greatly improved the bicycle technology. In the decades that followed, a variety of bicycles emerged, such as windsurfing bikes, water treadmills, ice bikes, and five-wheeled bicycles, and bicycles gradually became a popular means of transportation. Later, with the advent of pneumatic tires, chains, etc., the structure of bicycles became more and more perfect.

Dresser also invented meat grinders, typewriters, etc., which can reduce labor intensity. The trolley that railway workers now use to propel by human power on the tracks was also invented by Dress, so it is called "Dress".

The most common type of bicycle is the iron frame, but the iron frame is also divided into chromium-molybdenum steel.

High-strength steel, ordinary steel and other components are added to the iron frame. After adding these other components, it can be made into thinner pipes, making the entire frame lighter. Without reducing the strength, frames such as aluminum alloys were made using materials other than iron.

Bicycle races are made of titanium and carbon fiber.

made of frames.

1) Chromium-molybdenum steel frame: Before the 90s of the 20th century, bicycle frames were mainly made of chromium-molybdenum steel. It has good torsional and tensile properties, and the high temperature will not affect the material when welding, and it is cheap. But it is heavy and easy to oxidize.

2) Carbon fiber late spike frame: light weight, can absorb the impact of imitation Dan grip on the ground, and the material backwash is fast, which is an ideal bicycle frame material. The greater the tonnage of carbon fiber, the higher the elasticity and the higher the **.

There are several manufacturing methods such as bonding on molds, carbon fiber overlapping, heat treatment, solidification, molding, etc.

3) Titanium frame: Titanium is 55% lighter than steel and is not easy to oxidize. In order to improve the tensile strength of titanium alloys.

Welding with mixed materials such as aluminium and vanadium under vacuum is a complex and expensive process.

The bicycle is composed of steel pipes, round steel, mu and steel plates, plastic parts (handlebars, etc.), rubber parts (inner and outer belts, brake skins), springs, copper parts (spokes, strips, strips, nuts) and other materials.

Man-made materials are manufactured by processing (processing) natural materials, or by undergoing (changing) the natural materials. Items are made of materials, materials are divided into natural materials and artificial materials according to their **, natural materials directly from nature, such as wool, wood, stone. Man-made materials are manufactured by processing natural materials or changing the properties of natural materials.

Paper, iron, glass, and plastic are all man-made materials.

The world's first bicycle was invented by Sifrak.

Comte de Sivrac, a Frenchman, was splashed with mud on the street on a rainy day by a passing carriage, which led him to think that the carriage was so wide that it should be cut in half and the four wheels would be turned into two wheels, front and rear.

So in 1791, the first "Wooden Horse Wheel" car was born. The car had two wooden wheels at the front and rear, with a beam attached to it and a bench mounted on it, like a toy. Although this "wooden horse wheel" has neither a transmission chain nor a steering device, it is considered to be the earliest bicycle of mankind.

The world's first bicycle was invented in 1690 by the Comte de Seaflake of France. At that time, bicycles had no gearing and only two wheels, which were called "fast iron cars". In 1868, the world's first bicycle race was held in France, using this bicycle.

In 1869, the Englishmen Starley and Lawson invented the chain linkage device. In 1888, Dunlop, a Scottish doctor, replaced the iron wheels with inflated rubber tires. In 1896, cycling was included in the first Olympic sport.

Steel, plastic, rubber. 1. Steel deficit: frame gearing, wheels, handlebars, faucets, transmission lines, brakes, valves and other components belong to steel materials;

2. Plastic: brake handles, fenders, pedals and other parts are made of plastic;

3. Rubber: cushions, tires, inner tubes and other parts belong to rubber materials;

In addition, there are some high-end bicycles on the market that belong to the carbon frame structure, the material of carbon fiber is not like metal can collapse the stool to feel deformation or fatigue, and the phenomenon of instant fracture is possible, although it is impossible to ride a bicycle without a collision or crash, but the strength of carbon fiber does not need to worry.

Huang Luzhuang, invented by the Chinese. Much earlier than foreign countries.

The bicycle was invented by a forester named Dress in Germany.