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  • 激光切割机高温结露怎么样预防
  • 本站编辑:杭州创莘金属制品彩16发布日期:2019-05-06 12:03 浏览次数:

各位尊敬的用户,夏季是激光切割机的激光器故障高发季节。统计结果显示,高功率激光切割机激光器大部分故障与用户的操作顺序及设备运行环境密切相关,大多数由于高温导致激光器湿度高,结露等情况,为防止这种情况的出现,减少设备故障时间及其带来的损失,特提示如下:

一、可预防故障的产生机理

  激光器是将电能转换为激光能的装置,内部构成较为复杂,涉及光,机,电,算等多个学科和领域。尽管光纤激光器相对其它类型的激光器而言对环境要求较低,但也必须保证使用环境符合要求,自身的防护措施能切实起到防护作用。如果开机顺序,机箱密闭及水温设定等方面存在疏漏,就可能造成激光器内部水冷却的电子和光学器件因为内外温差导致表面结露,从而降低激光器的性能,乃至损坏激光器。

二、防范措施

  本措施主要是防范内部电子或光学元件结露,具体可分为以下几点:

  1.保证机箱密闭

  光纤激光器的机箱采用了密闭设计,并安装了机箱空调或除湿器,其目的是为了保证机箱内的各个元件处于相对稳定安全的温湿度环境下。如果机箱没有处于密闭状态,则机箱外的高温高湿的空气就能进入机箱内部,在遇到内部通水冷却的元件时,则在其表面遇冷凝结,造成可能的损害。故对机箱密闭性的检查应该注意以下几个方面:A.各机柜门是否存在并关紧。B.顶部的吊装螺栓是否拧紧。C.机箱后部未使用的通讯控制接口的保护盖是否盖好,已使用的是否固定好。

  2.开机顺序

  由于激光器机箱不可能做到完全密闭,当晚上断电后,机箱空调停止运转,如果房间没有安装空调或晚间空调不工作,外部的湿热空气可以逐渐渗透进机箱内。故早上重新开机时,需注意以下操作步骤:A.启动激光器总电源(不出光),让机箱空调运行30分钟左右。B.启动配套的冷水机,等待水温调整到预定温度,激光出光使能。备注:华俄IE等系列的设备安装有温湿度控制器的,要保证空气是有气压状态,在温湿度达到要求,冷水机自动启动。C.进行正常加工建议:如可能,在保证安全的前提下,激光器晚上不断电,让机箱空调保持运行。或者激光器安装空调房,并保持空调连续稳定运行(包括晚间)

  3.水温设定

  冷却水水温对电光转换效率,稳定性及结露有着直接的影响。通常情况下,冷却水水温设定如下:自来水(冷却激光器模块)的水温应该设定在21摄氏度左右。针对2500W以上的激光器,去离子DI水(冷却光学件)的水温应该设定在27度到33度之间,这个温度应根据环境温度和湿度做相应的调整,通常说来环境温度越高,湿度越大,DI水的水温应该相应增加。其基本原则是DI水水温应该在结露点以上。

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Dear users, summer is laser cutter laser failure Gaofajijie. The statistical results show that most of the faults of high-power laser cutting machine lasers are closely related to the user's operating order and the operating environment of the equipment. Most of them are caused by high temperatures, resulting in high humidity and dew of the laser. In order to prevent this situation, The time of equipment failure and the losses it brings are reduced. The tips are as follows:
The mechanism of preventable failure
A laser is a device that converts electrical energy into laser energy. The internal composition is relatively complex and involves many disciplines and fields such as light, machine, electricity, and calculation. Although optical fiber lasers are relatively low in environmental requirements compared to other types of lasers, they must also ensure that the operating environment meets the requirements and their own protective measures can effectively play a protective role. If there are omissions in the boot order, the closure of the chassis and the setting of the water temperature, it may cause the electron and optical devices cooled by the water inside the laser to cause the surface to dew due to the temperature difference between the inside and outside, thereby reducing the performance of the laser and even damaging the laser.
Preventive measures
This measure is mainly to prevent internal electronic or optical components from dew, which can be divided into the following points:
1. Ensure that the chassis is closed
The case of the fiber laser is a closed design and an air conditioner or dehumidifier is installed. The purpose is to ensure that the various components in the chassis are in a relatively stable and safe temperature and humidity environment. If the chassis is not in a closed state, the high-temperature, high-humidity air outside the chassis can enter the interior of the chassis. When it encounters an internal water-cooled element, it condenses on its surface, causing possible damage. Therefore, the examination of the airtight of the chassis should pay attention to the following aspects: A. whether the doors of each cabinet exist and are closed. B. Whether the lifting bolts at the top are tightened. C. Whether the protective cover of the unused communication control interface at the rear of the chassis is covered and the used is secured.
2. Boot Order
Since it is impossible for the laser chassis to be completely closed, when the power is turned off at night, the air-conditioning of the chassis stops operating. If the room is not equipped with air-conditioning or the air-conditioning does not work at night, the external hot and humid air can gradually penetrate into the chassis. Therefore, when rebooting in the morning, you need to pay attention to the following operational steps: A. Start the total power supply of the laser(without light) and let the chassis air conditioning run for about 30 minutes. B. Start the matching chiller, wait for the water temperature to be adjusted to the predetermined temperature, and the laser will emit light. Remarks: China and Russia IE and other series of equipment installed with a temperature and humidity controller, to ensure that the air is in a state of pressure, in the temperature and humidity meet the requirements, the water chiller automatically started. C. Recommendations for normal processing: If possible, under the premise of ensuring safety, the laser will not lose power at night, so that the chassis air-conditioning remains operational. Or the laser installs the air conditioning room and keeps the air conditioning running continuously and steadily(including at night)
3. Water temperature setting
The cooling water temperature has a direct influence on the electrooptic conversion efficiency, stability and condensation. Normally, the water temperature of the cooling water is set as follows: The water temperature of the tap water(cooling laser module) should be set at about 21 degrees Celsius. For lasers above 2500W, the water temperature of deionized DI water(cooling optical parts) should be set between 27 degrees and 33 degrees. This temperature should be adjusted accordingly according to the ambient temperature and humidity. Generally speaking, the higher the ambient temperature, the greater the humidity, the greater the water temperature of DI water should increase accordingly. The basic principle is that DI water temperature should be above the dew point.