锡青铜铸件的缺陷,多数是气孔、缩孔、渣孔。往往由于以上几种缺陷而使铸件报废。锡青铜铸件它具有铜焊接的特点,是难以进行焊接的材料。因为铜具有导热率高、热膨胀与凝固收缩大的特点。铜对氧的亲合力较强,氢在其中的溶解度较大,在焊补过程中易产生气孔和夹渣等缺陷。针对锡青铜铸件焊补的特点,采用同材质的焊芯,外涂保护性作用强的 Tin bronze casting defects, most of the pores, shrinkage, slag hole. Castings are often scrapped due to the above shortcomings. Tin bronze castings have the characteristics of copper welding, it is difficult to weld the material. Because copper has high thermal conductivity, thermal expansion and solidification shrinkage characteristics. Copper affinity for oxygen strong, hydrogen solubility in which larger, easy to produce in the welding process, such as porosity and slag defects. Tin bronze castings for the characteristics of welding, using the same material welding core, coated with strong protective effect