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冷热冲击试验箱和高低温冲击试验箱的区别在哪里
发布者:天津福川制冷设备技术有限公司 发布时间:2019-09-24 13:34:56 点击次数:111 关闭
冷热冲击试验箱主要用来做温度冲击测试,特点是温度的转换时间短变化快以形成对产品的温度冲击。在瞬间下经极高温及极低温的连续环境下所能忍受的程度, 只需10秒内可从高温150℃转换至低温-65℃,恢复时间5分钟以内完成。
高低温冲击试验箱是一款做高温低温的试验设备,但它不能在短时间达到从高温到低温的试验要求,因为它从高温150℃切换至低温-65℃,需要比较长的时间来完成,很显然是由逐步降温来达到试验条件的,比如我做从常温~150℃,的高温需要在35分钟内完成,但是做完高温试验后我需要在3分钟内达到-65℃的环境条件。
冷热冲击试验箱(高低温冲击试验箱)和高低温冲击试验箱的功能区别在于两者的温度变化速率,冷热冲击试验箱是通过突变的温度环境对产品试件进行温度冲击,不同的结构转换时间略有不同,三箱式冷热冲击试验箱转换时间小于3秒,二箱式冷热冲击试验箱的转换时间小于5秒,但不论那种结构,其恢复时间均需小于或等于5分钟;而高低温试验箱是可以模拟高温恒温条件、低温恒温条件和高低温交替变化条件的实验,其温度交变速率降温一般在小于1.5度每分钟,升温速率小于3度每分钟。
冷热冲击试验箱和高低温冲击试验箱的结构区别在于冷热冲击试验箱一般是三箱式或二箱式结构,而高低温试验箱的结构是单箱体。
The function difference between cold and heat shock test box (high and low temperature impact test box) and high and low temperature impact test box lies in their temperature change rate. The cold and heat shock test box impacts the product specimen through abrupt temperature environment, and the time for different structure transformation is slightly different. When the three-box cold and heat shock test box is converted, the temperature change rate is different. The conversion time of the two-box cold and hot shock test box is less than 5 seconds, but the recovery time of the two-box cold and hot shock test box is less than or equal to 5 minutes regardless of the structure; while the high and low temperature test box can simulate the high temperature constant temperature condition, the low temperature constant temperature condition and the high and low temperature alternating change condition, and its temperature alternating rate of change is generally lower than 5 seconds. The heating rate is less than 3 degrees per minute and less than 1.5 degrees per minute.
The structure difference between the cold and hot shock test box and the high and low temperature shock test box is that the cold and hot shock test box is generally three or two box structure, while the structure of the high and low temperature test box is single box.
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