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喷淋清洗机适配性指南:清洗剂与材质的科学匹配
来源:http://www.sinokohl.com/ 时间: 2025-06-07 浏览次数: 0
喷淋清洗机通过高压水流与专用清洗剂的协同作用,可高效去除工件表面油污、颗粒物及加工残留。其适配性涉及清洗剂化学特性与材质物理特性的双向匹配,需从清洗剂配方、材质耐受性及工艺参数三个维度构建技术解决方案。
The spray cleaning machine can efficiently remove oil stains, particulate matter, and processing residues on the surface of workpieces through the synergistic effect of high-pressure water flow and specialized cleaning agents. Its adaptability involves the bidirectional matching of the chemical properties of cleaning agents and the physical properties of materials, requiring the construction of technical solutions from three dimensions: cleaning agent formula, material tolerance, and process parameters.
一、清洗剂化学特性适配原则
1、 Principles for adapting the chemical properties of cleaning agents
低泡性能要求
Low foam performance requirements
喷淋清洗机在密闭管道内循环清洗剂,泡沫产生会导致泵体气蚀与喷嘴堵塞。需选用无泡或低泡型清洗剂,如添加聚醚类消泡剂或采用非离子表面活性剂复配技术。某汽车零部件企业实践表明,使用浊点为65℃的脂肪醇聚氧乙烯醚表面活性剂,在60℃清洗温度下可实现零泡沫清洗。
The spray cleaning machine circulates cleaning agent in the closed pipeline, and the foam will lead to pump cavitation and nozzle blockage. Non foaming or low foaming cleaning agents should be selected, such as adding polyether defoamers or using non-ionic surfactant compounding technology. The practice of a certain automotive parts enterprise has shown that using a fatty alcohol polyoxyethylene ether surfactant with a cloud point of 65 ℃ can achieve zero foam cleaning at a cleaning temperature of 60 ℃.
pH值与材质兼容性
PH value and material compatibility
碱性清洗剂(pH>10)对铝合金、锌合金等有色金属具有强腐蚀性。某航空零部件企业测试数据显示,pH值11.5的碱性清洗剂使7075铝合金表面出现点蚀坑,而中性清洗剂(pH 7-8)配合螯合剂可实现同等除油效果且腐蚀速率低于0.1g/m?·h。对于黑色金属,可选用pH值12-13的碱性清洗剂增强除锈能力。
Alkaline cleaning agents (pH>10) have strong corrosiveness to non-ferrous metals such as aluminum alloys and zinc alloys. According to test data from a certain aviation component company, alkaline cleaning agents with a pH value of 11.5 cause pitting corrosion on the surface of 7075 aluminum alloy, while neutral cleaning agents (pH 7-8) combined with chelating agents can achieve the same oil removal effect and a corrosion rate of less than 0.1g/m? ·h. For black metals, alkaline cleaning agents with pH values of 12-13 can be used to enhance rust removal ability.
螯合剂与硬水适配
Compatibility of chelating agents with hard water
在钙镁离子浓度超200ppm的硬水环境中,需添加EDTA-4Na或葡萄糖酸钠等螯合剂。某食品加工企业应用案例显示,添加3%葡萄糖酸钠可使清洗剂在400ppm硬水中保持透明,防止碳酸钙沉淀堵塞喷嘴。
In hard water environments with calcium and magnesium ion concentrations exceeding 200ppm, chelating agents such as EDTA-4Na or sodium gluconate need to be added. A case study of a food processing enterprise shows that adding 3% sodium gluconate can keep the cleaning agent transparent in 400ppm hard water and prevent calcium carbonate precipitation from clogging the nozzle.
二、材质物理特性适配规范
2、 Specification for adaptation of physical properties of materials
金属材质防护标准
Metal material protection standard
不锈钢:304不锈钢在80℃以下清洗剂中耐腐蚀性优异,但含氯清洗剂会引发应力腐蚀。某医疗器械企业测试表明,0.5%次氯酸钠溶液使304不锈钢试片在72小时内出现锈斑,改用过氧乙酸消毒剂后腐蚀问题消除。
Stainless steel: 304 stainless steel has excellent corrosion resistance in cleaning agents below 80 ℃, but chlorine containing cleaning agents can cause stress corrosion. A test conducted by a medical device company showed that a 0.5% sodium hypochlorite solution caused rust spots to appear on 304 stainless steel test pieces within 72 hours. After using peracetic acid disinfectant, the corrosion problem was eliminated.
铝合金:需控制清洗剂电导率低于50μS/cm,防止电化学腐蚀。某电子元器件企业采用去离子水配制清洗剂,使5052铝合金壳体清洗后48小时内无氧化变色。
Aluminum alloy: It is necessary to control the conductivity of the cleaning agent to be below 50 μ S/cm to prevent electrochemical corrosion. A certain electronic component enterprise uses deionized water to prepare a cleaning agent, which ensures that the 5052 aluminum alloy shell does not oxidize or discolor within 48 hours after cleaning.
非金属材质兼容性
Compatibility of non-metallic materials
塑料件:聚丙烯(PP)、聚乙烯(PE)等工程塑料可耐受80℃以下清洗剂,但聚碳酸酯(PC)在60℃以上会发生软化。某家电企业通过红外测温监控,确保清洗槽温度不超过55℃,避免按钮组件变形。
Plastic parts: Engineering plastics such as polypropylene (PP) and polyethylene (PE) can withstand cleaning agents below 80 ℃, but polycarbonate (PC) will soften above 60 ℃. A certain household appliance company uses infrared temperature monitoring to ensure that the temperature of the cleaning tank does not exceed 55 ℃, avoiding deformation of button components.
橡胶件:三元乙丙橡胶(EPDM)耐清洗剂性能优于丁腈橡胶(NBR)。某汽车密封条生产企业测试显示,NBR橡胶在清洗剂中浸泡72小时后体积膨胀率达8%,而EPDM膨胀率控制在2%以内。
Rubber parts: Ethylene propylene diene monomer (EPDM) has better resistance to cleaning agents than nitrile rubber (NBR). A test conducted by a certain automobile sealing strip production enterprise showed that the volume expansion rate of NBR rubber after soaking in cleaning agent for 72 hours reached 8%, while the expansion rate of EPDM was controlled within 2%.
三、工艺参数动态匹配机制
3、 Dynamic matching mechanism for process parameters
温度梯度控制
Temperature gradient control
清洗温度需根据清洗剂浊点与材质耐热性综合设定。某轴承制造企业采用三段式温控:预清洗段50℃(溶解动物油),主清洗段65℃(激活表面活性剂),漂洗段40℃(防止水渍)。此工艺使清洗剂消耗量降低30%。
The cleaning temperature should be set based on the cloud point of the cleaning agent and the heat resistance of the material. A certain bearing manufacturing enterprise adopts three-stage temperature control: pre cleaning section at 50 ℃ (dissolving animal oil), main cleaning section at 65 ℃ (activating surfactants), and rinsing section at 40 ℃ (preventing water stains). This process reduces the consumption of cleaning agents by 30%.
喷淋压力与流量优化
Optimization of Spray Pressure and Flow Rate
通过CFD模拟确定最佳喷淋参数:对于直径20mm的轴类零件,采用0.3MPa压力与120L/min流量,可使水流穿透油膜厚度达50μm。某液压件生产企业据此设计喷嘴布局,使盲孔内切削液残留量减少85%。
Determine the optimal spray parameters through CFD simulation: for a 20mm diameter shaft component, using a pressure of 0.3MPa and a flow rate of 120L/min can allow water flow to penetrate the oil film thickness up to 50 μ m. A hydraulic component manufacturing enterprise designed a nozzle layout based on this, reducing the residual amount of cutting fluid in blind holes by 85%.
清洗剂浓度动态补偿
Dynamic compensation of cleaning agent concentration
安装电导率传感器实时监测清洗剂浓度,当电导率下降15%时自动补液。某压缩机企业应用此技术后,清洗剂更换周期从3天延长至7天,综合成本下降40%。
Install conductivity sensors to monitor the concentration of cleaning agents in real time, and automatically replenish the solution when the conductivity drops by 15%. After applying this technology, a compressor company extended the cleaning agent replacement cycle from 3 days to 7 days, resulting in a 40% reduction in overall costs.
精密零部件清洗
Precision component cleaning
对于0.5mm以下间隙的精密零件,需采用气相清洗+喷淋漂洗组合工艺。某钟表制造企业先使用改性醇类清洗剂气相除油,再进行80℃喷淋漂洗,使微小齿轮组清洁度达到NAS 1638 3级。
For precision parts with a gap of less than 0.5mm, a combination of gas-phase cleaning and spray rinsing process is required. A certain watch manufacturing enterprise first uses modified alcohol cleaning agents for gas-phase oil removal, and then performs 80 ℃ spray rinsing to achieve NAS 1638 level 3 cleanliness for the micro gear set.
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