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  • ADD:Junma electroplate factory, Keqiao District, Shaoxing City, Zhejiang, China.

Welding Mould

    Zhongzhi exothermic welding materials is to melt the metal conductor through the high temperature produced by the oxidized metals in the reductive flux during the exothermic reducing reaction. This series of products include exothermic welding moulds, mould Handle clamp, exothermic welding flux and supporting operation Tool kit.

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Model No.               ZZXC-WM
Brand                   ZHONGZHI
Category                Exothermic Welding Products 
Material                Concrete                    
Size                    Standard                    
Life                    >= 50 Year
Function                Exothermic Welding       


Main content and ratio of welding powder

Element  Ratio Wt/% 
Cu ≥76.0
Al ≤2.0
Fe ≤10.0


Properties of joint

Properties  Technology index 
Conductivity  Resistance of conductor (Including joint) should be less than that of same length base metal
Strength      Joint strength should not less than 95% of low limit of raw material’s strength (CCS material is regarded as  
pure copper )
High melting point ≥1 083 ℃
Surface            No air hole ,residue and crack
Section quality    The max size anywhere should be higher than 1/3 of the thickness(or 1/4 of diameter) ,but should be less
 than 3mm


 Resistance of joint

Resistance /μΩ  Test location 
113 Distance between tested location :15 cm


Strength of joint

Strength Rm/Mpa      Remark
340 No crack and base metal off




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