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YD686冷硬鑄鐵耐磨藥芯焊絲；                                                                                                                         該焊絲是冷硬鑄鐵專用耐磨層堆焊埋弧焊絲，焊前對焊件（局部）預(yù)熱至300度，焊后進(jìn)行自然保溫冷卻24小時(shí)，廣泛用于冷硬鑄鐵軋輥，冷硬鑄鐵耐磨板上耐磨層的堆焊，適用于鋼廠冷硬鑄鐵對輥，糧食加工機(jī)械冷硬鑄鐵對輥等冷硬鑄鐵耐磨層的堆焊，                                                                                                           規(guī)格1.2-1.6-2.0-2.8-3.2-4.0，                                                                                       焊后硬度50-55度，                                                                                                        包裝規(guī)格；15kg/盤，50kg/桶，200kg/桶。