一、冷热冲击试验箱的用途有哪些？
冷热冲击试验箱适用电子元器件的**性能测试提供可靠性试验、产品筛选试验等，同时通过此设备试验，可提高产品的可靠性和进行产品的质量控制。
二、如何选购冷热冲击试验箱？
1、冲击温度：冲击温度是指测试区实际能够升、降到的温度*大范围。注意不是预热和预冷室的极限温度。
2、试验负载：这个参数直接影响能够放置多少测试品。
3、恢复时间：指测试工件从一个温度点切换到另外一个温度点所耗费的时间。常见的标准规定≤5min。
4、除霜时间：除霜间隔时间越长越好。现在有些厂家能够做到1000cycles除霜一次，是非常理想的。除霜间隔越短说明该设备的气密性越差！
5、选择三槽式或两槽式，常规为三槽式。
三、购置冷热冲击试验箱，售后服务如何？
1、东莞市贝尔试验设备有限公司为贝尔实业（香港）有限公司旗下公司，专业生产销售的冷热冲击试验箱，严格按照订货日期送货上门，并派技术人员现场免费安装调试，免费培训操作员至到操作员会独立操作为止。
2、我司生产销售的冷热冲击试验箱，一律做到免费保修壹年(自安装验收之日起计)，终身提供备件和售后服务48小时到位。。
3、在设备质保期过后，如冷热冲击试验箱出现任何故障，通告我司之后，技术人员将****，并只收取工本费用。 The matters needing attention for choose and buy High & low temperature shock test chamber
一、What the use of High & low temperature shock test chamber
High & low temperature shock test chamber of electronic components applicable safety tests provide reliability test, products such as screening tests, but at the same time, through this equipment test, can improve the reliability of the product and the product quality control.
二、How to choose and buy High & low temperature shock test chamber
1. Shock temperature: impact temperature is refers to the actual test area to rise, to the temperature of the maximum range. Note that not preheating and the cold room temperature extremes
2. Test load: the parameters directly affect how much can place test product
3. The recovery time: refers to test the work-piece from a temperature points switch to another temperature points the amount of time. Common standards ≤5min
4.Defrosting time: defrosting time interval between the longer, the better. Now some manufacturers can do 1000 cycles defrosting time, is very ideal. Defrost the shorter intervals that the equipment is the worse the air tightness
5.Choose three groove or two groove, routine for three groove
三、Purchase cold and hot shock test box, after-sales service
1.FollowingDongGuan Bell experiment equipment Co, Ltd Is its company,Professional production and sales of High & low temperature shock test chamber,strict according to order date door-to-door delivery, and send persons site free installation debugging, free training the operator to operators may be independent operation to so far.
2.Our company the production and sale of High & low temperature shock test chamber, all do one year warranty (since the installation acceptance date), a lifetime supply spare parts and after-sales service in 48 hours
3.After the warranty in equipment, such as c High & low temperature shock test chamber any fault, notice we later, technical personnel will door to door service, and charge only costs costs
