The idle noise of the boxless molding machine should not exceed 85dB.
无箱造型机的怠速噪声不应超过85dB。
Temperature control mode - air cooler
控温方式——空气冷却器
This method is an independent of the main hydraulic system of the molding machine, it is separately configured with a set of cooling circulation pipeline, installed next to the host hydraulic station, the gear pump is used as a circulation pump, through the air cooler fan to make the surrounding air flow, the heat part of the radiator oil in the cooler is taken away, to achieve the purpose of cooling the oil.
这种方式是一种独立于造型机主机的液压系统，它单独配置有一套冷却循环管路，安装在主机液压站旁边，多选用齿轮泵作为循环泵，通过空气冷却器风扇使周围空气流动，将冷却器内散热片中油液热量部分带走，达到给油液降温的目的。
This oil cooling method has its own advantages and disadvantages, the advantages are simple structure, small space, convenient maintenance, low cost, so 80% of the hydraulic system is now using this cooling method, the disadvantage is affected by the field operating environment and indoor temperature is more serious, the cooling effect is not good, especially in the summer, the field ambient temperature is high,
这种油液冷却方法，有其自身的优点和弊端，优点是结构简单，占用空间小，维修方便，费用低廉，故80%液压系统现在都采用这种冷却方式，缺点是受到现场作业环境及室内温度影响较为严重，冷却效果不好，尤其是夏天，现场环境温度高，
The temperature difference between the oil and the surrounding air in the cooler pipeline is small, the heat exchange effect is not good, and the cooling efficiency is greatly reduced, in addition, it is also affected by the working environment, and the on-site dust is large, which will make the cooler heat sink hang a layer of dust, hindering the heat exchange between the oil and the environment, so the cooling effect is significantly reduced.
冷却器管路内油液与周围空气温差小，热量交换效果不好，冷却效率大为降低，另外还受到作业环境影响，现场粉尘大，会使冷却器散热片挂上一层粉尘，阻碍了油液与环境的热交换，因此冷却效果明显下降。
