In the cold storage maintenance and repair, it is very difficult to directly take phosphorus copper to change the strip electric welding condenser iron pipe joint, especially for many beginners, it is generally improper handling of the welding joint problem. Therefore, in order to better operate, you can weld the iron pipe, be sure to use sandpaper to remove the rust of the welding sea, if there is a plating must be removed in advance. Then use welding tools to burn the iron pipe red, use brass welding rod dipped in borax to dissolve on the surface of the iron pipe first, and then weld the copper pipe to easily ensure that the welding is beautiful and applicable.
Compared with the small cylinder for portable welding tools, when using a larger liquefied gas cylinder to connect to gas, its filling capacity will be smaller at room temperature, so before inflation, the small steel cannon can be put into the refrigerator to freeze for a few hours, so that it can effectively increase the amount of gas delivery and increase the maintenance and welding time of cold storage.
Three-way valves and refrigerant bottle opening valves, which are more common in the maintenance of refrigeration systems, must be regularly maintained and inspected. Otherwise, the gasket will age due to too long time, and the sealing will not work. However, some models of rubber rings are not so easy to buy. Therefore, we can replace the rubber ring with the appropriate recorder movement drive inside and outside. When applying the rubber ring, a layer of synthetic grease can be wiped on the surface of the rubber ring, which can effectively increase its sealing effect.
For cold storage systems with a long service life, there will be some flocculent dust between the condenser steel windows, but these dirt are usually not easy to solve. Therefore, when maintaining and repairing the cold storage, we can take the weak scattered fire sprayed by the non-oxygen-assisted liquefied gas welding torch and burn it, so that it is easy to clean up with a soft brush.
