产品

海绵落球回弹试验仪  适用范围及功能：

适用于测定软质聚氨酯泡沫塑料的落球式回弹性能.

具有一定质量和直径的钢球，从固定高度下落到试样表面，测量钢球弹起的高度，计算钢球弹起高度与下落高度比值的百分率。该机采用微处理器进行控制，液晶中文显示，并可打印试验数据。该机具有使用安全、可靠、测量精度高等特点。

海绵落球回弹试验仪  Application scope and function:

It is suitable for measuring the falling ball resilience of flexible polyurethane foam

A steel ball with a certain mass and diameter falls from a fixed height to the surface of the sample, measures the bounce height of the steel ball, and calculates the percentage of the ratio of the bounce height of the steel ball to the drop height. The machine is controlled by microprocessor, LCD Chinese display, and can print test data. The machine is safe, reliable and has high measurement accuracy.

技术规格:

钢球落下距离：

460?0.5%mm（A法）（国标）

500?0.5%mm（美标）（B法）

钢球直径：￠16?0.05 mm

透明管直径：30～65mm

钢球质量：16.8g?1.5g（A法）；16.3g（B法）

落球回弹率精度：<1%自动计算平均回弹调试自动计算平均回弹率

Technical specifications:

Falling distance of steel ball:

460?0.5% mm (method a) (national standard)

500?0.5% mm (American Standard) (method B)

Diameter of steel ball:￠16?0.05 mm

Diameter of transparent tube: 30 ~ 65mm

Steel ball mass: 16.8g?1.5g (method a); 16.3g (method B)

Precision of falling ball springback rate: < 1% automatic calculation of average springback debugging automatic calculation of average springback rate

主要配置：

1、试验主机一台（含微型打印功能）
   2、智能液晶控制操作系统一台
   3、钢球释放机构1套
   4、钢球捕捉机构(精密光电传感器)一套
   5、高度调节机构一组
   6、钢球2个

Main configuration:

1. One test host (including micro printing function)

2. One intelligent LCD control operating system

3. One set of steel ball release mechanism

4. A set of steel ball capture mechanism (precision photoelectric sensor)

5. One group of height adjustment mechanism

6. 2 steel balls
产品特点:

1、既可做国标460试样，又可做美标500试样。（同类产品只能做国标460试样）

2、液晶屏中文显示，按键操作，增加使用寿命的同时，易于理解，技术人员可快速掌握操作方法。 

 3、带打印功能。

Product features:

1. It can be used as both national standard 460 sample and American Standard 500 sample. (similar products can only be used as national standard 460 samples)

2. LCD Chinese display, key operation, easy to understand while increasing the service life, and technicians can quickly master the operation method.

3. With printing function.

实验步骤

将调节后的试样水平置于回弹仪的测试位置上，通过调节使钢球底部从固定位置到泡沫塑料表面的落下高度为460mm。在释放装置上固定钢球，然后使钢球自由落下。对每一个试样做三次回弹，取三次回弹中的最大值。每次回弹钢球应落在试样表面的同一位置上，并且两次回弹的时间间隔应控制在20s之内。如果钢球在回弹过程中碰到或弹出测量装置，所得数据无效，需重新补做。

Experimental steps

Place the adjusted sample horizontally on the test position of the rebound tester, and adjust the drop height of the bottom of the steel ball from the fixed position to the foam plastic surface to 460mm. Fix the steel ball on the release device, and then let the steel ball fall freely. Rebound each sample three times, and take the maximum value of the three rebounds. Each rebound steel ball shall fall on the same position on the sample surface, and the time interval between two rebounds shall be controlled within 20s. If the steel ball encounters or pops out of the measuring device during the rebound process, the obtained data is invalid and needs to be made up again.

依据标准:

依据标准：ASTM D3574及ISO8307:2007(软质泡沫聚合材料-落球法回弹性能的测定); 

GB/T6670-2008(软质泡沫聚合村料落球法回弹性能的测定)

海绵泡沫塑料落球回弹测试仪通过标准规定直径和质量的钢球在规定高度上自由落在海绵泡沫塑料试样上，自动计算钢球回弹的最大高度与钢球落下高度比值的百分率（既回弹率），以回弹率表示泡沫塑料的回弹性能。

Basis standard:

According to standards: ASTM d3574 and iso8307:2007 (soft foam polymeric materials - Determination of resilience by falling ball method);

GB / t6670-2008 (determination of resilience of soft foam polymeric materials by falling ball method)

The falling ball resilience tester for sponge foam plastics automatically calculates the percentage of the ratio of the maximum height of steel ball resilience to the falling height of steel ball (i.e. resilience) by letting steel balls with the specified diameter and quality fall freely on the sponge foam plastic sample at the specified height, and shows the resilience of foam plastics with the resilience rate.