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"The installation of a muffler for cars and motorcycles will enable people to find ease in a lively city." Wang Zhenwu said that in the current power machinery, almost all of the electric machinery, such as internal combustion engine power units, cars and motorcycles. Both are driven by internal combustion engines. "The noise generated by the internal combustion engine is a major part of urban noise. My invention is to make this part of the noise disappear."
According to reports, Wang Zhenwu invented the "internal combustion engine muffler" full name is called the internal combustion engine exhaust phase shifting differential muffler, has obtained national patents. It is understood that the environmental pollution of internal combustion engines includes two aspects: one is air pollution, and the other is noise pollution. The source of the two pollutions mainly produces the exhaust process during the operation of the internal combustion engine. Exhaust muffler devices are installed on various internal combustion engine driven vehicles and other internal combustion engine devices. However, the biggest disadvantage of these muffler devices is that the structure is complicated and the exhaust has a certain resistance. This results in an unsatisfactory noise reduction effect and increases exhaust pollution.
The invention of Wang Zhenwu aims at avoiding the shortcomings of the above two aspects, and phase shifting, differentiating and combining the exhaust sound waves of the internal combustion engine to convert a high-amplitude narrow-pulse sound wave into a plurality of small-amplitude narrow-pulse sound waves that are mutually staggered. Thereby, the noise flow of the pulse amplitude is reduced to the sensory stimulation of the human ear. The most distinctive is that the "muffler" is simple in structure, small in size, without any baffles and unnecessary conduits, which makes the noise reduction effect significantly improved, and at the same time reduces the exhaust pollution of the car.
1.Wear-resisting Steel Plate is composed of low carbon steel plate and alloy wear-resisting layer. When working, the matrix provides comprehensive properties such as strength, toughness and plasticity of resisting external forces, and the alloy wear-resistant layer provides wear-resistant properties that meet the requirements of specified working conditions.
2.Wear-resisting steel alloy wear-resisting layer and base plate are metallurgical combination. By means of special equipment and automatic welding process, the high-hardness self-protecting alloy wire is uniformly welded on the substrate, and the composite layers are one to two or even more. In the composite process, due to the different shrinkage ratio of the alloy, uniform transverse cracks appear, which is a significant feature of the wear-resistant steel plate.
3.The wear resistant layer of the alloy is mainly chromium alloy, while manganese, molybdenum, niobium, nickel and other alloys are added. The microhardness of carbide can reach above hv1700-2000, and the surface hardness can reach hrc58-62. Carbide alloy has a strong stability at high temperature, maintain a high hardness, but also has a good oxidation resistance, within 500℃ completely normal use.
4.The wear-resistant layer has narrow channel (2.5-3.5mm), wide channel (8-12mm), curve (S, W), etc. It is mainly composed of chromium alloy, while manganese, molybdenum, niobium, nickel, boron and other alloy components are added. With 40-60% carbide content, the microhardness can reach above HV1700 and the surface hardness can reach hrc58-62.
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