-40℃冷阱（氟冷阱） -40℃ Cold Trap (Fluorine Cold Trap) 用 途 Applications 該產品廣泛用于真空鍍膜行業，安裝于油擴散泵口，防止油擴散泵返油。 This product is widely used in the industry of vacuum coating. It is installed at the oil diffusion pump inlet to prevent oil return of the oil diffusion pump. 優點 Advantages 在油擴散泵口，一般都安裝了冷卻水循環塔，可往往到了炎熱的夏季，冷卻水并不冷，不能起到防返油的作用，而-40℃冷阱（氟冷阱）不受外界環境溫度的影響，在炎熱的夏季，仍能穩定運行制冷達到-35℃～-40℃，很好地防止了油擴散泵的返油，若不安裝-40℃冷阱（氟冷阱），油擴散泵中的油蒸氣就跑到鍍膜腔內，一方面降低了真空系統抽氣速度，另一方面油蒸氣也是鍍件的污染源，所以-40℃冷阱（氟冷阱）是您防返油的上好 選擇。 A cooling water circulating tower is commonly installed at the oil diffusion pump inlet; however, in hot summer, the cooling water is often not cool, so the function of preventing oil return cannot be realized. In contrast, the -40℃ cold trap (fluorine cold trap) will not be affected by the outer ambient temperature; in hot summer, it still can stably carry out refrigeration in the temperature range of -35℃～-40℃, which well prevents oil return of the oil diffusion pump. If the -40℃ cold trap (fluorine cold trap) is not installed, the oil vapor in the oil diffusion pump will flow to the coating chamber, which reduces the evacuation rate of the vacuum system; besides, oil vapor can also contaminate the coated part. Therefore, the -40℃ cold trap (fluorine cold trap) is a good choice for preventing oil return. 特點 Features 1. 冷卻方式為風冷； 2. 操作簡單； 3. 安裝簡便，與空調的安裝類似，用制冷連接管將油擴散泵上的盤管與本機進、出口 連接，試壓不漏后，從檢修閥給盤管與連接管抽真空，然后關閉檢修閥，給設備通 　　　電，開機就可以運行。 1. Cooling method: air cooling; 2. The operation is simple; 3. The installation is simple, similar to installation of an air conditioner: use the refrigeration connecting pipe to connect the coil on the oil diffusion pump with the inlet and outlet of this unit; test the pressure and make sure there is no leakage; vacuumize the coil and the connecting pipe from the service valve; then close the service valve, and energize the device to start operation.