It was shown that high power pulse superposition current supply was the optimum choice for hard surface treatment of al and al alloys.
指出大功率脉冲叠加电源是铝及铝表面硬质处理的首选电源。
Practice shows that the laser treatment of hard metals surface can significantly increase the product's bending strength and wear resistance.
并通过实际应用，证实了激光表面强化处理具有使硬质合金制品的抗弯强度、耐磨性能大为提高的显著效果。
Hard anodizing film could be obtained on Al-Cu alloy surface which had been treated with solid solution treatment and natural aging.
经固溶处理和自然时效的铝铜合金可以进行硬质阳极氧化。
Surface heat treatment: surface heat treatment is a process that improves the hard-ness or other mechanical property of the fastener in any surface area.
表面热处理：是增加强紧固件的硬度或任何表面积上的机械性能。
The sealed surface is made of hard alloy of cobalt by overlaying welding. Through thermal treatment, the hardness of disc is improved.
密封面用钴基硬质合金堆焊而成，阀瓣经热处理，提高了硬度。
The sealed surface is made of hard alloy of cobalt by overlaying welding. Through thermal treatment, the hardness of disc in improved.
密封面用钴基硬质合金堆焊而成，阀瓣经热处理，提高了硬度。
DH2F has the hard to 37-41 HRC in heat treatment, without surface hardness, excellent performance, and processing and carving mode.
DH2F已经预硬至37 - 41hrc表面硬度，无需在热处理，性能出色，便加工及雕模。
DH2F has the hard to 37-41 HRC in heat treatment, without surface hardness, excellent performance, and processing and carving mode.
DH2F已经预硬至37 - 41hrc表面硬度，无需在热处理，性能出色，便加工及雕模。
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