Several data on the impact of the screw rod in the charcoal machine:

A: screw length

B: spiral spacing

C: tip diameter

D: diameter of axle

E: the first spiral diameter

F: diameter of the second thread

G: the third spiral diameter

Several angles affecting the screw rod:

A: spiral Angle

B: screw extrusion Angle

C: spiral taper

The welding screw is actually the method of grinding after welding: to restore the screw to the original energy, and to increase the use time of the screw, we usually use the wear-resistant electrode to repair it.But wear-resistant electrode is a kind of electrode that is less used. It is also different from ordinary welding rod. Now let's take a look at the step of the welding screw.

Step 1: conception

Observe the wear condition of the screw and lock the part to be soldered.

Step 2: heat

To heat the screw, my current method is to make a small stove, insert the screw, and cover the first three loops with the charcoal to ignite the red screw.

Step 3: apply welding

Use the wear-resistant electrode to weld well while it is hot

Step 4: heat preservation

Insert the welded screw into dry lime powder quickly, and cool for more than two hours;