（Note：在实验过程中试验箱内必须加入-30℃的防冻液，否则会影响制冷效果。In the process of the experiment test ,must be added - 30 ℃ antifreeze, otherwise it will affect the cooling effect）

DR-5型全自动低温柔性试验仪，是根据中华人民共和国国家标准GB/T328.14-2007建筑防水卷材试验方法，第14部分：沥青卷材—低温柔性，对低温柔性试验装置的要求，由我公司研制开发的一款新产品。仪器主机全部采用304材质不锈钢制作，动力源采用永磁低速电机驱动，双动8平行排列，可同时作正、反面各五个试样。控制器采用智能温度控制仪、数显时间继电器及相关元器件。控制器和主机相连接部分全部采用航空插头方式连接，该连接方式简单、方便、安全，并且有效的节省了仪器的使用空间。DR - 5 type automatic flexible tester at low temperature, is according to the law of the People's Republic of China national standard GB/T328.14-2007 building waterproofing materials testing methods, part 14: asphalt coil - low temperature flexible, flexible test device for low temperature requirements, by a new product developed by our company. Instrument host are all made of 304 stainless steel material, power supply adopts permanent magnet low speed motor drive, double acting eight parallel arrangement, positive and negative can be made at the same time the five samples. Controller with inligent temperature control instrument, digital display time relay and related components. Host controller and the way of connecting parts are all made of air plug connection, the connection mode is simple, convenient, safe, and effective to save the instrument in the use of space

DR-5型全自动低温柔性试验仪是DR-3型电动数显低温柔性试验仪的改款升级版，仪器采用不锈钢制作，*的工艺保证了温度控制精度在 ±1℃，降温速度是普通冰柜的几倍，zui低温度可达-35℃。测试仪也是采用不锈钢制作，特点：操作简单，工作效率高。

DR - 5 type full automatic type low temperature flexible tester is DR - 3 electric digital display of low-temperature flexible tester to upgrade, the instrument adopts stainless steel, the unique technology to ensure the precision of temperature control in the ± 1 ℃, the cooling speed is several times of ordinary freezers, the lowest temperature can reach - 35 ℃. Tester is also made of stainless steel features: easy operation, high work efficiency

• 仪器技术指标：Instrument technology indicators
  • Power：1000 ( w) 220 (v)  AC
  • Test temperature：-20℃；-25℃或自行设定。resolution 0．1℃，precision 0．2％。
  • Test samples： thickness 3；4；5mm;amount 10个
  • （150×25mm）
  • Test rate：360±＜40mm/min
  • Time setting：60mins（1min—999mins adjustable）

二、Instrument function：

1．仪器设有Ф20mm、Ф30mm、 Ф50mm试验用双动辊弯曲轴，可测厚度3，4，5mm的沥青防水卷材的低温柔性。

2．数字显示试验温度、时间。Digital display test temperature and time

3．上下行程限位，传动故障有脱扣保护，不会损坏传动机构。The upper and lower limit, transmission fault tripping protection, not damage the transmission mechanism

4．试验设置可自动控制温度．时间．计时报警，弯曲轴上可自动运行。Test Settings can be automatically control temperature, time, timing alarm, bent on the crankshaft can be run automatically

三、温度控制仪的设定：Temperature control instrument set

• 按下“SET”键，仪表下方窗口的红色数字

跳动，按下左方向键头移动数字位置，按

向上键头为数字增加，按向下键头为数字

减少。温度设定好后，按下“SET”键返回

Press the "SET" button, the red digital meter below the window

Beating, according to the lower right direction key digital head position, press

Key head up as the Numbers increase, press down the head for figures

Reduced. Temperature setting, press "SET" key to return

Red digital instrument for indoor actual temperature

• 仪表红色数字为室内实际温度。Red digital instrument for indoor actual temperature

四、试验步骤：Test steps

•   试验的矩形试件尺寸（150±1）mm×（25

±1）mm,试件从试样宽度方向上均匀的裁取,长

边在卷材的纵向，试件裁取时应距边缘不少于

150mm,试件应从卷材的一边开始做连续的记号，

同时标记卷材的上表面和下表面。

Test of rectangular specimen size (150 + 1) mm x (25 + 1) mm, uniform cropping specimens from the sample width, long edge in vertical coil, specimen cropping should be away from the edge of not less than 150 mm, specimen from one side of the coil began to make a continuous mark, mark coil on the surface and under surface at the same time

　　去除表面的任何保护膜，适宜的方法是常温下

用胶带粘在上面，冷却到接近假设的冷弯温度，然

后从试件上撕去胶带，另一方法是用压缩空气吹[压

力约0。5Mpa(5bar),喷嘴直径约0。5mm]，假若上

面的方法不能除去保护膜，用火焰烤，用zui少的时

间破坏膜而不损伤试件。

Remove any protective film on the surface, the appropriate method is room temperature use sticky tape on it, cold bending temperature cooled to near hypothesis, and then removing the tape from the specimen, another method is to use compressed air to blow [pressure about 0. 5 mpa (5 bar), nozzle diameter 0. 5 mm], if the above methods can't remove the protective film, roasted with fire, destruction of membrane with the least amount of time without damage to the specimen.

　　试件试验前应在（23±2）℃平板上放置至少

4h,并且相互之间不能接触，也不能粘在板上。可

以用硅纸垫，表面的松散颗粒用手轻轻敲打除去。

Specimens should be in before the test (23 + 2) ℃ tablet placed at least 4 h, and can't contact with each other, also can't stick on the board. Can use silicon paper pad, loose particles on the surface of the knock gently to remove by hand

2．    在开始试验前，两圆筒和弯曲轴之间的距离

应按试件厚度调节，根据所作试样厚度选择相适应

的弯曲轴，将弯曲轴放在两个圆筒之间的位置上。

把温控仪的设定温度调至高于室内实际温度，开动

控制器上升或下降开关，使弯曲轴和圆筒平行排列，

Ф30mm　和　Ф　50mm　弯曲轴可高出两圆筒10—

20mm。松开圆筒两面的罗丝，在弯曲轴和圆筒之间

放入和试件相对应的定位板，然后上紧圆筒两面的

罗丝，取下定位板。距离调好后，将试验装置放入

试槽内。并且圆筒的上端在冷冻液下面约10mm,

开动下降开关，使弯曲轴下降至停止位置。

Before starting test, the distance between the two cylinders and bent crankshaft should be according to the specimen thickness adjustment, according to the specimen thickness choice appropriate to the bending of the crankshaft, will turn the crankshaft in position between the two cylinders. The temperature controller set temperature to higher than indoor actual temperature, up or down to start the controller switch, the bending of the crankshaft and cylinder parallel arrangement, Ф 30 mm and Ф 50 mm bent crankshaft can be higher than that of two cylinder 10-20 mm. Loosen the both sides of the cylinder, rose between the bending of the crankshaft and cylinder into and specimens corresponding to the positioning plate, and then to tighten the cylinder sides rose, remove the positioning plate. Distance set, after the test unit into the slot. And the top of the cylinder in the coolant below about 10 mm, start the drop switch, resulting in a bent crankshaft to the stop position

3.    两组各5个使件，一组是上表面试验，另

一组下表试验，将试件放置在圆筒下面的支撑装

置上，并且在弯曲轴在的上端，保证冷冻液*

浸没试件。然后把试验装置放入试验箱内，设定好

仪表的温度。5 make pieces of each of the two groups, one group is on the test surface, another group in the table below test, place the specimen in the cylinder below the support device, and in turn the crankshaft in the upper, to ensure that the frozen liquid immersion specimen compley. Then put the test unit into the test box, set the temperature of the instrument

4.    控制器温控仪的温度根据试验要求可设定在

－20℃～-25℃，首先接通电源后电源指示灯亮，

然后打开“开关”旋钮待仪表十秒钟后显示正常温

度后方可打开“工作”旋钮，这时机器开始制冷，

制冷指示灯亮。当仪表温度到达设定的温度时，恒

温指示灯亮计时器开始计时，计时器完毕后，电机

自动上升，弯曲轴以（360±40）mm/min速度顶着

试件向上移动，试件同时绕轴弯曲180度，这时实

验已经做完。如在作实验时，把面板上控制电机开

关的“下降”降到zui低，放上试件后按一下“复位”

开关，这时机器又开始重新实验了，待实验结束后

方可关闭电源开关。

Controller according to the test the temperature of the temperature controller can set in - 20 ℃ ~ 25 ℃, first switched on after the power indicator, open the "switch" knob to the instrument after ten seconds later showed normal temperature rear can open the "work" knob, then the machine start cooling, refrigeration indicator. When the instrument temperature reaches the set temperature, constant temperature indicator timing starts the timer, timer, motor automatically rise, bending the crankshaft (360 + 40) mm/min speed move upward against the specimen, specimen bending axis 180 degrees at the same time, the experiment has been done. As in the experiment, the panel switch control motor to minimize the "drop", put on the specimen after click the "reset" switch, the machine to the experiment again, and after the experiment can be shut off the power switch.