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目前用硬质合金强化高速钢刀具都在—45、—46和—46A 各型装置上进行。但是这些装置由于其固有的缺点,而不能保证必要的强化质量。当上述这些装置工作时,如果电网中的电压下降,电极便会粘在工件上,从而导致刀刃因电极燃烧而烧伤。以0.8至3.8安的电流用六种规范涂复强化层不能经常满足对粗、精加工刀具(控刀、铰刀、滚刀)和在恶劣条件下用的模具(阳模、阴模)的要求。所提出的—78型装置工作时不会烧伤工件。以1至10安的电流用九种强化规范既
The current use of high-speed carbide cutting tools are hardened in -45, -46 and -46A various types of devices. However, these devices, due to their inherent disadvantages, do not guarantee the necessary strengthening qualities. When these devices are operated, if the voltage in the grid drops, the electrode sticks to the workpiece, causing the blade to burn as the electrode burns. Applying a reinforcement layer with six specifications at a current of 0.8 to 3.8 A does not always suffice for the use of rough, finishing tools (knives, reamers, hobs) and molds (male and female) in harsh conditions Claim. The proposed -78 device does not burn the workpiece while it is in operation. With 1 to 10 amperes of current with nine strengthening norms both