Mingyanhai (Changzhou) Microelectronics Co., Ltd.
Leading Polishing Industry Solution Provider
Leading Polishing Industry Solution Provider
Leading Polishing Industry Solution Provider
本案例针对工程机械用 316L 不锈钢高压多路液压阀体的量产抛光需求开发，专为解决传统金刚石珩磨、电解抛光工艺的核心痛点，采用我司氧化铝抛光液，实现了阀体抛光良率、服役性能、环保合规性、量产效率的全面跃升。
本工件为不锈钢高压多路液压阀体，是工程机械液压系统核心控制部件，核心抛光需求为去除 CNC 机加工产生的表面划痕、镗削刀纹与孔口毛刺，实现高精度镜面效果，满足 35MPa 高压工况的密封、耐蚀与精密控制要求。
抛光前：阀体阀孔与内流道刀纹、毛刺、划痕明显，阀孔粗糙度 Ra≈0.8μm、流道 Ra≈1.6μm；阀芯响应慢、控制精度差；钝化膜破损，24h 盐雾试验即生锈，耐蚀性不足；传统工艺良率仅 85%，环保风险高。
抛光后：使用铭衍海氧化铝抛光液精密抛光后，阀体加工缺陷完全去除，阀孔粗糙度降至 Ra≤0.008μm（降幅 100 倍）、流道 Ra≤0.01μm，实现高清镜面效果；量产良率升至 99.7%，完全符合环保要求。
为什么选择氧化铝抛光液
使用铭衍海氧化铝抛光液的优势
定制化适配
可根据客户阀体材质、抛光设备、目标精度，定制专属粒径与配方体系
粒度精准
粒径分布窄，纳米级均匀去除，无划痕、光洁度一致。
切削护材兼顾
莫氏硬度约9级，高效切削且不划伤精密脆弱基材。
悬浮稳定
专有分散技术，磨粒不沉淀不团聚，轻微摇匀即可使用，保障抛光一致性。
环保易清洗
水性配方，无毒无重金属，纯水可冲净，无残留无二次污染。
适配性强
弱酸/碱性可调，不腐蚀多种基材，适配手动/自动化设备，可按需调浓度、pH值。
高效耐用
抛光效率高，废液过滤补新液可循环3-5次，降低使用成本。
A small bore punch die fabricated from YG8 cemented carbide (tungsten carbide) for a precision stamping manufacturer exhibits prominent machining textures and micro-scratches on its inner bore and end faces subsequent to WEDM and sinker EDM processing. The as-machined surface roughness measures roughly Ra 0.6 μm. These surface imperfections readily induce galling and burr formation on stamped components during production, leading to abbreviated die service life and inferior process yield. A high-throughput, consistent polishing process is thus in critical demand.Polishing cemented carbide via diamond polishing suspension constitutes a highly process-critical operation. Given the exceptional hardness of YG8 cemented carbide, only diamond abrasives possessing greater hardness are capable of delivering efficient stock removal and surface finishing on this substrate.Workpiece Technical ParametersSubstrate Material: YG8 cemented carbide (tungsten carbide)Pre-Polish Condition: WEDM / sinker EDM machined surface, Ra ≈ 0.6 μm, accompanied by residual machining textures and edge micro-chippingCustomer Performance Targets: Eliminate the surface damaged layer, achieve mirror-grade surface roughness, preserve tight dimensional tolerances, boost finished stamping part yield and extend die service lifespan
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