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Low temperature impact testing machine compressor copper tube cutting technology
This chapter introduces the basic skills required to repair the low temperature impact tester, including copper tube cutting, copper tube bending, gas welding, refrigerant discharge, pressure gauge, repair, assembly and application, pressure leak detection, evacuation, filling Operation methods and skills for the maintenance of refrigeration systems such as refrigerants and seals. Operational skills are, to a certain extent, proficient, so maintenance personnel, especially beginners (beginners), need to see more and practice more, and eventually become familiar with practice.
1. The copper tube of the compressor of the low-temperature impact test machine is cut when cutting the copper tube of the refrigeration system of the low temperature impact test machine. It is not allowed to use a hacksaw for cutting, so as to prevent the metal from breaking into the interior of the refrigeration system and causing malfunctions such as dirty plugging. therefore. For maintenance, the ordinary copper tube of ≯4～≯8mm should be cut with a cleaver. Capillaries are usually cut with pliers or scissors. Of course, if you have a capillary clamp on hand, it is best to use a capillary for cutting.
2, ordinary low temperature impact testing machine compressor copper tube cutting (1) cutting; using a small cutting knife to cut the copper tube of the refrigeration system. The part that needs to be cut should be straightened first. And after processing its surface, it will be cleaned. Then rotate the handle of the cutting knife so that the nozzle clamps the cutting part of the copper tube. Then, rotate the pipe cutter evenly and clockwise 1 to 2 turns clockwise. Then properly tighten the handle of the cutting knife to ensure that the arm cutter clamps the copper tube, and stops when the cutting edge cuts into the 2 biliary of the copper tube wall. Sprinkle the pipe cutter and cut off the copper pipe.
Note: There are several points to note during the cutting process: First, the cutter wheel and the knife edge, the blade and the copper tube must be perpendicular to avoid damage to the blade; second, the force cannot be too large. In order to avoid the copper tube being crushed. Deformation: Third, metal scraps cannot be produced. In order to avoid entering the refrigeration system. Expand the fault; Fourth, the force can not be too large, to ensure that the cut nozzle is smooth and flat, so as to avoid the mouth shrinkage.
(2) Trimming; if the cut nozzle is not smooth, insert the reamer on the pipe cutter into the nozzle to be treated and rotate the handle. The scraping agent can be poured out, if there is a reamer on the cutting knife used at hand. The head of the needle-nosed pliers can be inserted into the mouth, the needle-nosed pliers can be rotated, the hair remover can be scraped off, and the hair can be cut out.