丁基膠涂布機液壓油的選擇指南

　　Guidelines for selecting hydraulic oil for butyl rubber coating machine

　　一、丁基膠涂布機的液壓系統工況特點

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

　　丁基膠涂布機的液壓系統主要用于驅動涂膠機構的壓力輸出（如膠缸、膠嘴的升降或擠壓），其核心工況參數如下：

　　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:

　　工作壓力：常見液壓工作壓力范圍為12-20MPa（如LXF300×100-DJT05機型為12-15MPa，WJT04機型為0-20MPa），屬于中高壓系統；

　　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;

　　工作溫度：膠缸加熱溫度通常為100-160℃（如LXF300×100-DJT05膠缸110℃±15℃，WJT04膠缸100-160℃），液壓油需在高溫下保持穩定性能；

　　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;

　　設備要求：需保證液壓系統的長周期穩定運行，避免因油品問題導致涂膠不均勻、壓力波動或部件磨損。

　　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、液壓油的選擇依據

　　2、 Selection criteria for hydraulic oil

　　結合丁基膠涂布機的工況特點，選擇液壓油時需重點考慮以下因素：

　　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：應對中高壓工況

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

　　丁基膠涂布機的工作壓力較高（12-20MPa），液壓泵（多為葉片泵或柱塞泵）及執行元件（如活塞、導軌）需承受較大摩擦。因此，需選擇抗磨液壓油（HM型），其在基礎油中添加了極壓抗磨劑（如磷酸酯、硫代磷酸鹽），能有效減少部件磨損，延長設備壽命。

　　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. 粘溫特性：適應溫度變化

　　2. Adhesive temperature characteristics: adaptable to temperature changes

　　丁基膠涂布機的膠缸加熱溫度可達160℃，液壓系統在高溫下運行時，液壓油的粘度會下降。為保證低溫啟動（如冬季環境溫度低）和高溫運行時的粘度穩定性，需選擇高粘度指數（VI≥90，優先選120以上）的抗磨液壓油，確保粘度變化在允許范圍內（如40℃運動粘度推薦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. 熱穩定性和氧化安定性：應對高溫環境

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

　　丁基膠涂布機的高溫環境（膠缸100-160℃）會加速液壓油的氧化變質，導致油品粘度增加、酸性物質生成，影響系統性能。需選擇熱穩定性好、氧化安定性高的礦物油型或合成型抗磨液壓油（如合成烴液壓油，其氧化壽命比礦物油長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：避免系統泄漏

　　4. Compatibility of sealing materials: Avoid system leakage

　　丁基膠涂布機的密封件多為**丁基橡膠、三元乙丙橡膠（EPDM）**等材質（用于膠缸、膠嘴的密封）。液壓油需與密封材料相容，避免出現膨脹、收縮或溶解（如礦物油型抗磨液壓油與丁基橡膠的相容性較好，但需避免使用含極性添加劑的油品，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. 清潔度：防止系統堵塞

　　5. Cleanliness: prevent system blockage

　　丁基膠涂布機的液壓系統需保持清潔，避免雜質進入泵、閥等精密部件。需選擇清凈分散性好的抗磨液壓油，減少油品中的雜質和沉積物，降低系統堵塞風險。

　　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、推薦液壓油類型及牌號

　　3、 Recommended hydraulic oil types and grades

　　根據上述選擇依據，丁基膠涂布機優先推薦以下液壓油：

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

　　1. 礦物油型抗磨液壓油（HM型）

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

　　適用場景：一般中高壓丁基膠涂布機（工作溫度≤120℃）；

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

　　推薦牌號：HM32、HM46、HM68（按40℃運動粘度劃分，具體根據設備說明書選擇）；

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

　　特點：性價比高，滿足中高壓、中低溫工況需求，需定期更換（一般每6-12個月更換一次）。

　　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. 合成型抗磨液壓油（如合成烴型）

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

　　適用場景：高溫（＞120℃）、高負荷或長周期運行的丁基膠涂布機；

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

　　推薦牌號：合成烴HM32、HM46（如美孚SHC系列、殼牌Omala系列）；

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

　　特點：熱穩定性好、氧化安定性強，使用壽命比礦物油長2-3倍，適合高溫環境。

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

　　3. 高粘度指數（HVI）液壓油

　　3. High viscosity index (HVI) hydraulic oil

　　適用場景：環境溫度變化大（如冬夏溫差超過30℃）的丁基膠涂布機；

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

　　推薦牌號：HVI32、HVI46（如長城金吉星系列、昆侖天威系列）；

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

　　特點：粘度隨溫度變化小，能保證低溫啟動（如-10℃）和高溫運行（≤150℃）時的粘度穩定性。

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

　　四、注意事項

　　4、 Precautions

　　油品檢測：定期檢測液壓油的粘度、酸值、水分等指標（每3-6個月一次），若指標超標需及時更換；

　　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;

　　過濾要求：使用前需過濾（如10μm濾芯），運行中保持系統清潔（避免雜質進入）；

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

　　兼容性確認：更換液壓油前，需確認新油與原系統密封材料、涂料的相容性（如丁基橡膠是否與新油反應）。

　　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).

　　通過以上選擇指南，可確保丁基膠涂布機的液壓系統穩定運行，延長設備壽命，提高涂膠質量。

　　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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