Maybe many people don’t know that Stainless Steel Weld Tee will also leave scars, so what are these scars? These scars are holes of different sizes like soybeans, with gray-brown or gray-black foreign matter inside. So, how can we effectively control the scars of large-diameter tees? The following are eight methods to deal with large-diameter tee scars.

The main research results are as follows:

(1) The particle size of the deoxidizer powder is generally around 16 mesh.

(2) According to the internal surface area of ​​the large-diameter three-way, the injection amount of the deoxidizer is generally 1.5×2.0g·dm2. The deoxidation capacity of pipes with different diameters and lengths is different.

(3) The cleaning time should be adjusted according to the diameter and length of the pipe, and suspended metal oxides should not be blown out of the pipe.

(4) If the lubrication effect of the core rod is not good, or the temperature of the core rod lubricant is too low, internal scars will be generated. In order to increase the core rod temperature, a one-time water cooling method can be used.

(5) The content of sodium stearate in the deoxidizer should reach more than 12%, and it can be completely burned in the large-diameter tee cavity.

(6) Strictly control the temperature of the core rod to ensure that the surface temperature of the core rod is 80℃120℃. The temperature of the core rod cannot exceed 120℃ for a long time to ensure that the lubricant on the surface of the core rod is dry and dense before pre-infiltration. The operator should regularly check the lubrication of the core rod.

(7) The nozzle height should be adjusted according to the diameter of the large-diameter tee to ensure the alignment of the protrusion. Each shift should be sorted once, and the nozzle should be removed for cleaning for a long time. In order to ensure that the oxide remover evenly sweeps the inner wall of the pipeline, a selective installation device is used where the oxide remover is sprayed, and a rotating pressure is used.

(8) The injection pressure should match the diameter and length of the pipeline to ensure strong blowing force, sufficient incineration, and ensure that the deoxidizer that has not been completely incinerated cannot be blown away by the large-diameter tee flow.