There are generally two independent brakes on a motorcycle, one set on the front wheel and one on the rear. However, some models have "linked brakes" whereby both can be applied at the same time using only one control. Baotian Scooter Brake,Qingqi Scooter Brake,Benzhou Scooter Brake SONORA MOTOR COMPANY , https://www.sonoramotor.com
Iron ore has different iron content and different impurity content. If refueling, it will cause instability of the blast furnace smelting system, affect production, and even accidents. Therefore, the iron ore of different origins and different grades will be uniformly mixed in proportion to ensure the stability of the composition of iron ore.
While the addition of lime, when coal powder ingredients sintered. Note that the lime is added at this time, not on the blast furnace side, nor on limestone .
2. Sintering.
Powdered iron ore without sintering cannot be directly fed into the blast furnace. After the batching of iron ore, the coal powder is ignited by a gas spray gun on the sintering machine. After the coal powder is burned out, not only the heat can agglomerate the iron ore, but also a large number of holes are formed in the sintered ore, so that the contact surface is increased and increased. Reduction reaction rate.
3. Blast furnace reduction.
Sinter, coke , and pellets are added to the blast furnace in proportion. The tuyere under the blast furnace is fed with preheated hot air (800-1000 degrees), and the carbon monoxide and hydrogen generated by the reaction of coke and hot air at high temperature reduce iron ore to iron at high temperature. Iron absorbs carbon to form pig iron with a lower melting point, and finally the molten iron is released from the tap.
In order to save coke, some blast furnaces also spray auxiliary fuel such as pulverized coal, heavy oil and natural gas .
The blast furnace structure knows not to say about it, and there is a little leak. The steel plate is used as the furnace shell, the steel water cooling wall is installed in the shell, and the inner layer is knotted and the refractory lining is built.
4. Mixed iron.
The molten iron ingredients are different in each furnace and are packed into a mixed iron furnace to make the ingredients uniform.
5. Steelmaking.
The molten iron has a high carbon content, and is oxidized to remove carbon and other impurities by blowing oxygen in a converter.
6. Refinement.
The molten steel is refined to further remove impurities, and at this time, high-purity iron nuggets can be obtained by casting.
If the ingredients were added to adjust the alloy, carbon and the like, to obtain molten steel to give steel after casting.
Front brakes are generally much more effective than rear brakes: roughly two thirds of stopping power comes from the front brake-mainly as a result of weight transfer being much more pronounced compared to longer or lower vehicles, because of the motorcycle's short wheelbase relative to its center of mass height. This can result in brake dive.
Brakes can either be drum or disc based, with disc brakes being more common on large, modern or more expensive motorcycles for their far superior stopping power, particularly in wet conditions. There are many brake-performance-enhancing aftermarket parts available for most motorcycles, including brake pads of varying compounds and steel-braided brake lines.
In 1981, BMW introduced an antilock braking system (ABS) on a motorcycle. Other manufacturers have since also adopted this technology. ABS is normally found on motorcycles of 500 cc or greater engine capacity, although it is available on motor scooters down to 49 cc.
Process from iron ore to high purity iron
1. ingredients iron ore.