Method for processing tube number winding pipe

Abstract

The invention relates to a method for processing a syphon, and belongs to the field of the method for manufacturing brass instruments. The processing method comprises: filling a mixture of sand and water in a straight pipe; cooling the straight pipe till the mixture of the sand and the water is condensed to a solid; processing the straight pipe of which the inside is filled with the mixture of the sand and the water into the syphon; and unfreezing the processed syphon till the water in the syphon thaws and flows out from the syphon. The method can simplify processing flow, reduce processing time, improve production efficiency and yield, reduce the manufacturing cost of a product, and ensure the quality of a finished product in order to achieve good performing effect in performance.

Description

technical field [0001] The invention belongs to the field of manufacturing methods of brass instruments, in particular to a method for processing pipe number bends. Background technique [0002] At present, the method usually used to make the bent pipe of the trumpet instrument is: first inject liquid rosin into the copper pipe, wait for the rosin to solidify and then bend the copper pipe, and then heat the processed bent pipe to make the inside of the pipe body The rosin is melted and the finished elbow can be obtained at this time. In the long-term use process, it is found that there are some shortcomings in this processing method: 1. Since rosin needs to be heated to melt, there must be a heating process in the processing process, which prolongs the production time and is not conducive to improving production efficiency; 2. After the rosin is heated It will not completely melt and flow out, and a small part of residue will adhere to the inside of the tube body, which wil...

AI Technical Summary

Problems solved by technology

In the long-term use process, it is found that there are some shortcomings in this processing method: 1. Since rosin needs to be heated to melt, there must be a heating process in the processing process, which prolongs the production time and is not conducive to improving production efficiency; 2. After the rosin is heated It will not completely melt and flow out, and a small part of residue will adhere to the inside of the tube body, which will affect the quality of the product, resulting in the inability to achieve a good performance of the tube horn when playing, resulting in an increase in the reject rate of the product; 3. The price of rosin is high, so it is not Conducive to reducing the production cost of enterprises