Acid-corrosion-preventing copper-coated steel ground rod and manufacturing method therefor

The invention discloses an acid-corrosion-preventing copper-coated steel ground rod and a manufacturing method therefor, and belongs to the field of electrical equipment. The ground rod comprises a steel-cast inner core; a copper layer is arranged on the external of the inner core; the inner core is fully covered by the copper layer; a spacer layer is arranged in the copper layer; the spacer layer is insulated from the inner core; sodium bicarbonate is arranged in the spacer layer; an injection hole is formed in the copper layer; the injection hole is communicated with the spacer layer and the outer side of the copper layer; a copper rod is arranged in the injection hole; the injection hole is closed by the copper rod; the copper rod is bulged out of the copper layer; the side face of the copper layer is covered by an copper oxide layer; the manufacturing method comprises the following steps in sequence: coating a layer of copper on the surface of the inner core, coating a layer of lead on the copper, then coating a layer of copper-coated layer again, drilling a through hole in a metal rod, heating the metal rod until draining away the lead, filling the sodium bicarbonate, inserting the copper rod to form the copper oxide layer. According to the acid-corrosion-preventing copper-coated steel ground rod and the manufacturing method therefor, the acid-corrosion-preventing capacity of the ground rod can be effectively improved, and the service life of the ground rod can be prolonged.