Stainless steel muffler and manufacturing process thereof

Abstract

The invention discloses a stainless steel muffler and a manufacturing process thereof, and belongs to the technical field of manufacturing refrigeration system components. The current muffler used by a refrigeration system is high in cost or easily pollutes the environment and is corroded by rusting. The stainless steel muffler consists of a stainless steel hush pipe and a copper air inlet pipe and a copper air outlet pipe welded at two ends of the hush pipe, and the manufacturing method for the stainless steel muffler comprises the following steps of: 1, preparing the hush pipe by using a stainless steel pipe; 2, preparing the air inlet pipe and the air outlet pipe by using copper pipes, and beating the side walls at welding positions of the copper pipes to form salient points which protrude from inside to outside; 3, assembling, namely inserting the air inlet pipe and the air outlet pipe into welding ports at two ends of the hush pipe respectively, fixing the air inlet pipe and the air outlet pipe, and filling a solid bronze solder into welding seams; 4, welding, namely passing the assembled muffler to be welded through a welding furnace, and controlling the temperature of the welding furnace to be between 900 and 1,065 DEG C and the passing speed to be between 0.25 to 0.7 meter / minute; and 5, performing leak checking. By the stainless steel muffler, an anti-rust spraying treatment is not needed, and the rusting of the muffler is avoided.

Description

technical field [0001] The invention belongs to the technical field of refrigeration system component manufacturing, and in particular relates to a stainless steel muffler and its manufacturing process. Background technique [0002] The muffler is a device used in a refrigeration system that allows airflow to pass through and can effectively reduce noise. It includes a section of muffler with a larger diameter and smaller diameter inlet and outlet pipes welded to both ends of the muffler. The muffler cylinder, inlet pipe and outlet pipe of the traditional muffler are all made of copper pipes. The high price of copper materials makes the cost of the muffler relatively high; there are silencers welded by iron muffler pipes and copper air inlet and outlet pipes on the market. Iron materials are used instead of copper materials to save costs, but the outer wall of the iron silencer pipe needs to be sprayed with an anti-rust layer. The material for the anti-rust layer is generall...

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the defects of high cost or easy rust and corrosion of existing silencers used in refrigeration systems and the defects that the manufacturing process is easy to pollute the environment, and to provide a refrigeration system pipe fitting and its components that will not rust and have low cost. manufacturing process

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