Method for processing core component of energy-saving muffler of internal combustion engine

Abstract

The invention belongs to the technical field of manufacturing of mufflers of exhaust systems of internal combustion engines and relates to a method for processing and manufacturing a core component of the muffler of the exhaust system of the internal combustion engine. In order to meet the urgent demands of abroad and domestic automobile market for energy-saving and emission-reducing mufflers, the core component of the energy-saving muffler of the invention is prepared by punching and molding high-temperature resistant, weak-acid resistant and high-phosphorus steel sheets with a certain shape and a certain thickness by using female and male dies under a hydraulic pressure at one time, wherein the core component is shown in a figure 3 (the figure 3 has a peak A and is a top view formed by four connected parts each of which consists of an inner wind cone (mark 3), a main wind block (mark 1) and a wind distributing block (mark 2)). Compared with the method for processing and manufacturing the core component of the energy-saving muffler in the authorized invention patent named 'energy-saving muffler of exhaust system of internal combustion engine' (ZL200410010261.8), the method of the invention has the advantages that: production efficiency is improved by 10 times; and product quality is more stable. The method for processing the core component of the large-scale, superlarge-scaleand huge-scale energy-saving muffler adopts a precision casting (lost-wax process) preferably and then performs program control on a vertical lathe and a vertical milling machine; and a small amount of core components of the large-scale muffler with high precision requirement also can be processed by a powder metallurgy method.

Description

technical field [0001] The invention belongs to the technical field of manufacturing mufflers for exhaust systems of internal combustion engines, and in particular relates to a method for processing and manufacturing core components of mufflers for exhaust systems of internal combustion engines. Background technique [0002] 1. In today's world, all vehicles and ships powered by internal combustion engines must be equipped with the principle of muffler, resistance type, resistance type or a combination of the two principles, regardless of their short service life (the national regulation muffler: trucks use for 1 year, The car has been used for 2 years), there are many consumables (compared to ZL 200410010261.8 patent), the gradual blocking of the muffler makes the pollution discharge gradually larger, and the exhaust resistance of its gradual blocking forces the power loss of the internal combustion engine to reach 20%--25% when the muffler is scrapped. Such as picture One...

AI Technical Summary

Problems solved by technology

) can not be stamped successfully

[0003] 2. The authorized invention patent [Energy-saving muffler for internal combustion engine exhaust system] (ZL 200410010261.8) From the structural point of view: the exhaust gas is artificially divided into air and collided. The two air volumes are the same and the arrays in opposite directions carry different audio, Noise particles with different energies continuously perform effective audio reflection (resonance at the same frequency) in the hollow muffler barrel, which greatly reduces the noise and makes the exhaust very smooth, never clogged, energy saving and emission reduction, and the service life of the muffler is improved according to the national standard More than 5 times, although this invention overcomes the world's top problems in the muffler field structurally (such as Figure II , picture Three), but the processing and manufacturing method described in this patent can not meet the urgent needs of the market, (the processing and manufacturing method is described as follows in the 10th page 2 of this invention: the wind cone and the main wind block and the air distribution block can be used for shaping The concave-convex die of the same size and its combined machine tool use the same material and corresponding thickness of the material to be rolled out at one time, and then the inner taper seam is welded and the necessary mold is used to correct it. For small and medium batches, the main air block and the air block can be punched out with the corresponding plate for reuse. Two countersunk head bolts are fastened to the position of the wind cone arc

) because the core component of the core component is rolled out of the blank with a steel plate profile, and the inner cone must be welded in a special welding fixture with a certain pre-tightening pressure when the inner cone is welded. The core component of the energy-saving muffler can only be welded In the case of high investment, automatic coiling, clamping, welding, and efficiency can be realized, but compared with the one-time stamping of the present invention described below, it is incomparable in terms of productivity, product quality stability, and cost.

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