什么是技术清洁度,为什么汽车业离不开它
What is technical cleanliness and why automotive depends on it
技术清洁度(Technical Cleanliness)指零部件表面残留颗粒的数量、尺寸与重量必须在限值以内,否则会在发动机、变速箱、制动与液压系统中造成磨损、卡滞甚至失效。随着动力总成精密化与电气化,颗粒容忍度越来越低。德国汽车工业协会的 VDA 19 系列(19.1 基础/检验、19.2 装配中的技术清洁)与国际标准 ISO 16232《道路车辆—零部件清洁度》共同构成全球车企与 tier-1 供应商的准入门槛。
Technical cleanliness means the count, size and mass of residual particles on a part must stay within limits—otherwise they cause wear, jamming or failure in engines, transmissions, brakes and hydraulics. As powertrains get more precise and electrified, particle tolerance keeps dropping. Germany's VDA 19 series (19.1 basic/inspection, 19.2 technical cleanliness in assembly) and the international standard ISO 16232 'Road vehicles—Cleanliness of components' together form the entry gate for global OEMs and tier-1 suppliers.
VDA 19.1 与 ISO 16232 怎么界定“干净”
How VDA 19.1 and ISO 16232 define 'clean'
标准用可量化的方式定义洁净度:通过萃取(如冲洗/超声)收集零件表面颗粒,再做颗粒计数与重量分析。ISO 16232 用 CCC 代码(Calibration/Particle-size Class Code,如 CCC=A,按最大允许颗粒尺寸分级)规定不同功能件的颗粒上限;VDA 19 则规范了检验方法、萃取与过滤的实验室流程。简言之,不是“看着干净”,而是“称量+计数都达标”才算合格。
The standards quantify cleanliness: extract particles from the part surface (rinse/ultrasonic), then count and weigh them. ISO 16232 uses CCC codes (particle-size class codes, e.g. CCC=A, graded by maximum allowed particle size) to set per-function limits; VDA 19 specifies the laboratory method, extraction and filtration. In short, it is not 'looks clean' but 'weighing and counting both pass' that qualifies.
地面:被低估的颗粒第二大来源
The floor: an underestimated second-largest particle source
在装配与检测区,颗粒来源主要有人员、空气、工装与——地面。地面扬尘、鞋底带入、设备磨损碎屑都会重新落到零件与托盘上。技术清洁度管理因此要求对装配/存储区域做清洁度分区:高洁净区限制通行与产尘作业,地面需高频清洁且即洗即干,避免水渍与二次扬尘把颗粒带回零件表面。
In assembly and inspection areas, particles come from people, air, tooling and—the floor. Floor dust, sole-borne debris and equipment-wear fragments resettle onto parts and trays. Technical-cleanliness management therefore zones assembly/storage areas: high-cleanliness zones restrict traffic and dusty work, and floors need frequent cleaning that washes and dries in one pass to avoid water film and re-suspension returning particles to part surfaces.
即洗即干:洗地机为何优于拖把
Wash-and-dry: why scrubbers beat mops
传统拖把只是把脏污在水里来回转移,且留下水渍与湿度,反而助长颗粒再悬浮与细菌。洗地机是“喷洗—刷洗—吸干”一体,清水清洁、污水即时回收、地面立刻干燥防滑,是高洁净区的理想选择。驾驶式洗地机覆盖效率高,可在生产间隙快速完成大面积清洁,不干扰节拍。
A traditional mop only shifts dirt around in water and leaves a wet film that promotes re-suspension and bacteria. A floor scrubber integrates spray, brush and suction—clean water on, dirty water recovered instantly, floor dry and slip-resistant immediately—ideal for high-cleanliness zones. Ride-on scrubbers clean large areas fast between production gaps without disturbing takt time.
工业吸尘:定点控尘与边角回收
Industrial vacuums: point dust control and corner recovery
洗地机负责大面积湿清洁,工业吸尘器负责设备周边、地坑、输送线下的干式定点回收,避免扬尘。二者组合形成“湿洗+干吸”的双保险:湿洗压住可溶污与大部分颗粒,干吸清除边角与设备积尘,共同把装配区颗粒负荷降到清洁度分级可接受的范围。
Scrubbers handle broad wet cleaning; industrial vacuums handle dry point recovery around equipment, pits and under conveyors to avoid re-suspension. Together they form a 'wet wash + dry vacuum' double safeguard: wet washing suppresses soluble soil and most particles, dry vacuum clears corners and equipment dust, jointly pulling assembly-zone particle load into the acceptable range for cleanliness classes.
按场景匹配 ApexClean 真实机型
Match ApexClean real models to the scenario
ApexClean 提供装配车间清洁矩阵:驾驶式洗地机 YLBA024、小型驾驶式洗地机 YLBA1201、驾驶式洗地机 YLBA056 适合高洁净区即洗即干;工业吸尘器 YLBC015 用于设备周边与边角定点回收。以上机型均为成熟配置,可按车间面积、清洁度分区与供电(380V 三相或电池式)组合,并配合清洁 SOP 与记录满足 VDA/ISO 审核可追溯要求。
ApexClean offers an assembly-shop cleaning matrix: ride-on scrubber YLBA024, small ride-on scrubber YLBA1201 and ride-on scrubber YLBA056 suit wash-and-dry in high-cleanliness zones; industrial vacuum YLBC015 serves point recovery around equipment and corners. These are mature configurations, combinable by shop area, cleanliness zoning and power (380V three-phase or battery), paired with a cleaning SOP and log to meet VDA/ISO audit traceability.
审核与持续改进要点
Audit and continuous-improvement notes
技术清洁度不是一次达标,而是持续受控。建议建立分区清洁制度、清洁频次记录、洗地/吸尘点位图与滤芯更换台账,作为 VDA 19 / ISO 16232 审核的证据链。采购设备时关注即干能力(吸水扒与刷盘)、过滤等级、低残留水渍与可验证的清洁覆盖率。
Technical cleanliness is controlled continuously, not a one-time pass. We recommend zoned cleaning rules, frequency logs, scrubber/vacuum point maps and filter-change records as the evidence chain for VDA 19 / ISO 16232 audits. When procuring, focus on dry-capability (squeegee and brush), filtration grade, low water residue and verifiable cleaning coverage.