Exhaust Mufflers PM Parts
Exhaust muffler is a kind of device that allows gas to pass through, but can hinder or reduce sound transmission, and is an effective tool for eliminating aerodynamic noise. Exhaust mufflers PM Parts are made of aluminized steel or stainless steel. A general exhaust muffler consists of a resonance chamber, an expansion chamber and a set of porous structure pipes.
Product Description
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Exhaust mufflers PM Parts |
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Item |
Material |
Production Process |
Sintering Temperature |
Mold |
Custom |
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Exhaust mufflers |
440c |
Powder metallurgy sintering |
1550°C |
To be customized |
Yes |
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Chemical composition |
C: 0.95～1.20 Si: ≤1.00 Mn: ≤1.00 S : ≤0.030 P : ≤0.035 Cr: 16.00～18.00 Ni: allowed to contain ≤0.60 |
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Available Materials |
Low carbon stainless steel, titanium alloy (Ti, TC4), copper alloy, tungsten alloy, hard alloy, high temperature alloy (718, 713) |
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Exhaust muffler is a kind of device that allows gas to pass through, but can hinder or reduce sound transmission, and is an effective tool for eliminating aerodynamic noise. Exhaust mufflers PM Parts are made of aluminized steel or stainless steel. A general exhaust muffler consists of a resonance chamber, an expansion chamber and a set of porous structure pipes. Some also fill the exhaust muffler with high-temperature-resistant sound-absorbing materials, which are often glass fibers or asbestos. The exhaust gas flows into the expansion chamber and the resonance chamber through the porous structure pipe. During this process, the exhaust gas continuously changes the flow direction, gradually reduces and attenuates its pressure and pressure pulsation, consumes its energy, and finally reduces the exhaust noise.
The high-pressure steam enters the pressure-reducing body after a return flow control in the muffler, and then expands the pressure with a large volume, and then forms low-pressure steam and then sprays it out. During this process, the mechanical energy of the steam flow is partially converted into sound energy of a certain frequency, and its noise Although the power is greatly weakened, the noise is still higher than the standard value because the exhaust steam violates the overall planning value and other reasons. This puts high demands on the manufacture of exhaust mufflers! The following are the production process requirements for the production of exhaust mufflers summarized by Zhongwei Precision, you can refer to them!
Manufacturing process requirements of exhaust muffler
1. The material, thickness and processing of Exhaust mufflers PM Parts should adopt advanced and reliable methods to ensure the strength of the muffler.
2. The muffler shell and flow-passing parts should be smooth and lubricated, and no welding slag, cutting slag, or drill cuttings should be left.
3. The muffler parts should adopt advanced and reliable processing technology.
4. When the boiler exhaust muffler is made of stainless steel, the surface is degreased. All steel structural parts are derusted.
5. The exhaust muffler is equipped with supports, drains, and lifting lugs. It has installation, operation, maintenance and detailed drawings and product quality certificates before leaving the factory.
6. The muffler is made according to GB12348-90 "Noise Standards at the Boundary of Industrial Enterprises" and GB/T4760-1995 "Measurement Method for Acoustic Mufflers".
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