丁基胶涂布机液压油的选择指南

　　Guidelines for selecting hydraulic oil for butyl rubber coating machine

　　一、丁基胶涂布机的液压系统工况特点

　　1、 Characteristics of hydraulic system working conditions of butyl rubber coating machine

　　丁基胶涂布机的液压系统主要用于驱动涂胶机构的压力输出（如胶缸、胶嘴的升降或挤压），其核心工况参数如下：

　　The hydraulic system of the butyl rubber coating machine is mainly used to drive the pressure output of the coating mechanism (such as the lifting or squeezing of the rubber cylinder and nozzle), and its core operating parameters are as follows:

　　工作压力：常见液压工作压力范围为12-20MPa（如LXF300×100-DJT05机型为12-15MPa，WJT04机型为0-20MPa），属于中高压系统；

　　Working pressure: The common hydraulic working pressure range is 12-20MPa (such as 12-15MPa for LXF300 × 100-DJT05 model and 0-20MPa for WJT04 model), belonging to medium and high pressure systems;

　　工作温度：胶缸加热温度通常为100-160℃（如LXF300×100-DJT05胶缸110℃±15℃，WJT04胶缸100-160℃），液压油需在高温下保持稳定性能；

　　Working temperature: The heating temperature of the rubber cylinder is usually 100-160 ℃ (such as LXF300 × 100-DJT05 rubber cylinder 110 ℃± 15 ℃, WJT04 rubber cylinder 100-160 ℃), and the hydraulic oil needs to maintain stable performance at high temperatures;

　　设备要求：需保证液压系统的长周期稳定运行，避免因油品问题导致涂胶不均匀、压力波动或部件磨损。

　　Equipment requirements: It is necessary to ensure the long-term stable operation of the hydraulic system, avoiding uneven coating, pressure fluctuations, or component wear caused by oil problems.

　　二、液压油的选择依据

　　2、 Selection criteria for hydraulic oil

　　结合丁基胶涂布机的工况特点，选择液压油时需重点考虑以下因素：

　　Considering the working conditions of the butyl rubber coating machine, the following factors should be taken into account when selecting hydraulic oil:

　　1. 抗磨性能：应对中高压工况

　　1. Wear resistance: Suitable for medium and high pressure working conditions

　　丁基胶涂布机的工作压力较高（12-20MPa），液压泵（多为叶片泵或柱塞泵）及执行元件（如活塞、导轨）需承受较大摩擦。因此，需选择抗磨液压油（HM型），其在基础油中添加了极压抗磨剂（如磷酸酯、硫代磷酸盐），能有效减少部件磨损，延长设备寿命。

　　The working pressure of butyl rubber coating machine is relatively high (12-20MPa), and hydraulic pumps (mostly blade pumps or plunger pumps) and actuating components (such as pistons and guide rails) need to withstand significant friction. Therefore, it is necessary to choose anti-wear hydraulic oil (HM type), which adds extreme pressure anti-wear agents (such as phosphate esters and thiophosphates) to the base oil, which can effectively reduce component wear and extend equipment life.

　　2. 粘温特性：适应温度变化

　　2. Adhesive temperature characteristics: adaptable to temperature changes

　　丁基胶涂布机的胶缸加热温度可达160℃，液压系统在高温下运行时，液压油的粘度会下降。为保证低温启动（如冬季环境温度低）和高温运行时的粘度稳定性，需选择高粘度指数（VI≥90，优先选120以上）的抗磨液压油，确保粘度变化在允许范围内（如40℃运动粘度推荐32-68mm?/s）。

　　The heating temperature of the rubber cylinder of the butyl rubber coating machine can reach 160 ℃. When the hydraulic system operates at high temperatures, the viscosity of the hydraulic oil will decrease. To ensure viscosity stability during low-temperature start-up (such as low ambient temperatures in winter) and high-temperature operation, it is necessary to choose anti-wear hydraulic oil with a high viscosity index (VI ≥ 90, preferably above 120) to ensure that viscosity changes are within the allowable range (such as recommended 32-68mm?/s for 40 ℃ kinematic viscosity).

　　3. 热稳定性和氧化安定性：应对高温环境

　　3. Thermal stability and oxidation stability: suitable for high temperature environments

　　丁基胶涂布机的高温环境（胶缸100-160℃）会加速液压油的氧化变质，导致油品粘度增加、酸性物质生成，影响系统性能。需选择热稳定性好、氧化安定性高的矿物油型或合成型抗磨液压油（如合成烃液压油，其氧化寿命比矿物油长2-3倍）。

　　The high temperature environment of the butyl rubber coating machine (rubber cylinder 100-160 ℃) will accelerate the oxidation and deterioration of hydraulic oil, leading to an increase in oil viscosity and the generation of acidic substances, which will affect system performance. It is necessary to choose mineral oil or synthetic anti-wear hydraulic oil with good thermal stability and high oxidation stability (such as synthetic hydrocarbon hydraulic oil, whose oxidation life is 2-3 times longer than mineral oil).

　　4. 密封材料相容性：避免系统泄漏

　　4. Compatibility of sealing materials: Avoid system leakage

　　丁基胶涂布机的密封件多为**丁基橡胶、三元乙丙橡胶（EPDM）**等材质（用于胶缸、胶嘴的密封）。液压油需与密封材料相容，避免出现膨胀、收缩或溶解（如矿物油型抗磨液压油与丁基橡胶的相容性较好，但需避免使用含极性添加剂的油品，以免加速密封老化）。

　　The sealing components of butyl rubber coating machines are mostly made of materials such as butyl rubber, ethylene propylene diene monomer (EPDM), etc. (used for sealing rubber cylinders and nozzles). Hydraulic oil should be compatible with sealing materials to avoid expansion, contraction, or dissolution (such as mineral oil-based anti-wear hydraulic oil with good compatibility with butyl rubber, but it is necessary to avoid using oil containing polar additives to accelerate seal aging).

　　5. 清洁度：防止系统堵塞

　　5. Cleanliness: prevent system blockage

　　丁基胶涂布机的液压系统需保持清洁，避免杂质进入泵、阀等精密部件。需选择清净分散性好的抗磨液压油，减少油品中的杂质和沉积物，降低系统堵塞风险。

　　The hydraulic system of the butyl rubber coating machine needs to be kept clean to prevent impurities from entering precision components such as pumps and valves. It is necessary to choose anti-wear hydraulic oil with good cleanliness and dispersibility to reduce impurities and deposits in the oil and lower the risk of system blockage.

　　三、推荐液压油类型及牌号

　　3、 Recommended hydraulic oil types and grades

　　根据上述选择依据，丁基胶涂布机优先推荐以下液压油：

　　Based on the above selection criteria, the butyl rubber coating machine recommends the following hydraulic oils as a priority:

　　1. 矿物油型抗磨液压油（HM型）

　　1. Mineral oil type anti-wear hydraulic oil (HM type)

　　适用场景：一般中高压丁基胶涂布机（工作温度≤120℃）；

　　Applicable scenarios: General medium and high pressure butyl rubber coating machine (working temperature ≤ 120 ℃);

　　推荐牌号：HM32、HM46、HM68（按40℃运动粘度划分，具体根据设备说明书选择）；

　　Recommended grades: HM32, HM46, HM68 (divided by 40 ℃ kinematic viscosity, specific selection according to equipment manual);

　　特点：性价比高，满足中高压、中低温工况需求，需定期更换（一般每6-12个月更换一次）。

　　Features: High cost-effectiveness, meeting the needs of medium and high pressure, medium and low temperature working conditions, requiring regular replacement (usually every 6-12 months).

　　2. 合成型抗磨液压油（如合成烃型）

　　2. Synthetic anti-wear hydraulic oil (such as synthetic hydrocarbon type)

　　适用场景：高温（＞120℃）、高负荷或长周期运行的丁基胶涂布机；

　　Applicable scenarios: Butyl rubber coating machines operating at high temperatures (>120 ℃), high loads, or long cycles;

　　推荐牌号：合成烃HM32、HM46（如美孚SHC系列、壳牌Omala系列）；

　　Recommended grades: synthetic hydrocarbons HM32, HM46 (such as Mobil SHC series, Shell Omala series);

　　特点：热稳定性好、氧化安定性强，使用寿命比矿物油长2-3倍，适合高温环境。

　　Features: Good thermal stability, strong oxidation stability, service life 2-3 times longer than mineral oil, suitable for high temperature environments.

　　3. 高粘度指数（HVI）液压油

　　3. High viscosity index (HVI) hydraulic oil

　　适用场景：环境温度变化大（如冬夏温差超过30℃）的丁基胶涂布机；

　　Applicable scenarios: Butyl rubber coating machine with large environmental temperature changes (such as temperature difference exceeding 30 ℃ between winter and summer);

　　推荐牌号：HVI32、HVI46（如长城金吉星系列、昆仑天威系列）；

　　Recommended brand: HVI32, HVI46 (such as Great Wall Jinji Star series, Kunlun Tianwei series);

　　特点：粘度随温度变化小，能保证低温启动（如-10℃）和高温运行（≤150℃）时的粘度稳定性。

　　Characteristics: The viscosity changes little with temperature, ensuring viscosity stability during low-temperature start-up (such as -10 ℃) and high-temperature operation (≤ 150 ℃).

　　四、注意事项

　　4、 Precautions

　　油品检测：定期检测液压油的粘度、酸值、水分等指标（每3-6个月一次），若指标超标需及时更换；

　　Oil testing: Regularly test the viscosity, acid value, moisture and other indicators of hydraulic oil (once every 3-6 months), and replace them in a timely manner if the indicators exceed the standard;

　　过滤要求：使用前需过滤（如10μm滤芯），运行中保持系统清洁（避免杂质进入）；

　　Filtering requirements: Filter before use (such as a 10 μ m filter element), and keep the system clean during operation (to avoid impurities entering);

　　兼容性确认：更换液压油前，需确认新油与原系统密封材料、涂料的相容性（如丁基橡胶是否与新油反应）。

　　Compatibility confirmation: Before replacing hydraulic oil, it is necessary to confirm the compatibility between the new oil and the original system sealing materials and coatings (such as whether butyl rubber reacts with the new oil).

　　通过以上选择指南，可确保丁基胶涂布机的液压系统稳定运行，延长设备寿命，提高涂胶质量。

　　By following the above selection guide, it is possible to ensure the stable operation of the hydraulic system of the butyl rubber coating machine, extend the service life of the equipment, and improve the quality of the coating.

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