日本NACHI不二越负荷感应变量柱塞泵PZ系列
PZ-6B-10-180-E1A-20 PZ-6B-10-180-E2A-20 PZ-6B-10-180-E3A-20 PZ-6B-10-220-E1A-20
PZ-6B-10-220-E2A-20 PZ-6B-10-220-E3A-20 PZ-6B-13-130-E3A-20 PZ-6B-13-180-E1A-20
日本NACHI不二越负荷感应变量柱塞泵PZ系列
PZ-6B-25-180-E2A-20 PZ-6B-25-180-E3A-20 PZ-6B-25-220-E1A-20 PZ-6B-25-220-E2A-20
PZ-6B-25-220-E3A-20 PZ-6B-32-180-E1A-20 PZ-6B-32-180-E2A-20 PZ-6B-32-180-E3A-20
PZ-6B-32-220-E1A-20 PZ-6B-32-220-E2A-20 PZ-6B-32-220-E3A-20 PZ-6B-40-180-E1A-20
PZ-6B-40-180-E2A-20 PZ-6B-40-180-E3A-20 PZ-6B-50-180-E1A-20 PZ-6B-50-180-E2A-20
(3)选用“外表工程技能”，办法如下： (a)电镀技能：在柱塞外表镀一层硬铬；(b)电刷镀技能：在柱塞外表刷镀资料；(c)热喷涂或电弧喷涂或电喷涂：喷涂高碳马氏体资料；(d)熔敷：在柱塞外表熔敷高硬度合金粉末。
PZ-6B-50-180-E3A-20 PZ-6B-64-180-E1A-20 PZ-6B-64-180-E2A-20 PZ-6B-64-180-E3A-20
PZ-6B-10-180-E2A-20 PZ-6B-10-180-E3A-20 PZ-6B-10-220-E1A-20 PZ-6B-10-220-E2A-20
PZ-6B-10-220-E3A-20 PZ-6B-10-180-E1A-20
PZ-6B-5-180-E1A-20 PZ-6B-5-180-E2A-20 PZ-6B-5-180-E3A-20 PZ-6B-6.5-220-E3A-20
PZ-6B-5-220-E1A-20 PZ-6B-5-220-E2A-20 PZ-6B-5-220-E3A-20 PZ-6B-6.5-220-E2A-20
(4)缸体孔无铜套的缸体资料大都是球墨铸铁的，在缸内壁上制备非晶态薄膜或涂层。因为缸体孔内壁有了这种分外物质，所以才调构成硬—硬配对的磨擦副。假定盲目地研磨缸体孔，把缸体孔内壁这层外表资料研掉，磨擦的构造功用也就改变了。被去掉涂层的磨擦副，假定强行运用，就会磨擦面温度增加，柱塞杆与缸孔发作胶合。
日本NACHI不二越负荷感应变量柱塞泵PZ系列
