According to the existing service conditions, the choice of Φ5mm model E5015 (J507) or E5016 (J506) electrodes, baked at a temperature of 350 ℃ 2h, and then at 100 ℃ insulation to prevent moisture absorption electrode, used with the check; welding current 190 ~ 230A. Due to the large excavator side plating, welding parts before welding should be preheated to 150 ~ 250 ℃; in the welding process, the original used Kobelco excavator, can be segmented, symmetry, backward method welding; at welding seam cooling process should continue hand hammer percussion weld metals to eliminate stress; at the corner side welding, Hubei used Kobelco excavator, to avoid ups and downs arc defect, Kobelco excavator market , should be continuous welding, Kobelco excavator offer, in order to improve the situation by force connection. Preparations before welding repair method: hand wheel weld crack at the original oil, paint and rust cleaned. By gouging machine will weld crack plane cut out, cut to the body side of the plane, and the cleaned base material hardened conventional welding area. After cutting plane with the angle wheel will cut polished smooth (inside interfaces polished V-shaped groove), cleaning, pink check to make sure all cracks have been found and removed. Hainan Used Kobelco excavator, Kim Ho used excavators, used Kobelco digging machine parts provided by Shanghai Used Construction Machinery Co., Ltd. Jin Hao. Hainan Used Kobelco excavator, Kim Ho used excavators, used Kobelco digging machine parts is Shanghai Jin Hao Used Construction Machinery Co. (www.jinhaosh.cn) this year introduced a new upgrade, the above picture is for reference only, please dial this page Phone or pictures on obtain the latest information, contact: Mr. Chairman.