简支梁冲击试验机作为控制产品质量必须的设备，在使用过程中如何排除故障、保证机器良好运转，操作人员应学会发现问题并能排除。
北京简支梁冲击试验机 本机采用半自动化控制，操作简便、工作效率高。本机所配的专用液晶显示屏可显示即时信息。可打印输出。
原理：
用已知能量的摆锤打击支承成水平梁的试样，由摆锤*次冲击使试样破坏。冲击线们于两支座正中，若为缺口试样则冲击线应正对缺口，以冲击前、后摆锤的能量差，确定试样在破坏时所吸收的能量。然后按试样原始横截面积计算其冲击强度。
As a necessary equipment for controlling product quality, the simply supported beam impact testing machine should learn how to troubleshoot and ensure good operation of the machine during use. Operators should learn how to identify problems and be able to troubleshoot them.
This machine adopts semi-automatic control, which is easy to operate and has high work efficiency. The dedicated LCD display screen equipped with this machine can display instant messages. Printable output.
缺口试样简支梁冲击强度
缺口试样在冲击负荷作用下，破坏时吸收的冲击能量与试样缺口处的原始横截面积之比，以kj/m2表示。
相对冲击强度
缺口试样冲击强度与无缺口试样冲击强度之比，或同类试样A型与B型缺口冲击强度之比。
C型缺口试样冲击强度与A型或B型任*种缺口试样冲击强度之比，不得作为相对冲击强度的量度。
完全破坏
经达*次冲击使试样分成两段或几段。
Main technical parameters
1. Impact energy: Simply supported beam, 7.5J 15J 25J 50J or maximum impact energy specified by the user
2. Pre lift angle of pendulum: 150 °
3. Blade angle: 75 °
4. Blade fillet radius: 0.8mm
5. Support fillet radius: None
6. Front corner of support: None
7. Impact speed: 3.8m/s
8. Distance from the center of the pendulum shaft to the center of the sample: 395mm
9. Power supply: AC 220V 50Hz
10. Net weight: 80kg
11. Rear corner of support: None
12. Blade front angle: 5
无缺口试样简支梁冲击强度
无缺口试样在冲击负荷作用下，破坏时所吸收的冲击能量与试样的原始横截面积之比，以KJ/m2表示。
部分破坏
*种不完全破坏，即无缺口试样或缺口试样的横断开90%。
液晶数显简支梁冲击试验机是对硬质塑料、尼龙、硬橡胶、电气*缘材料等非金属材料在动负荷下抵抗冲击性能进行检测的仪器，
是非金属材料生产厂*、质检部门必备的检测仪器，
也是科研单位进行新材料研究不可缺少的测试仪器。
无破坏
*种不完全破坏，即无缺口试样或缺口试样的横断面断开部分小于90%。
主要技术参数
1. 冲击能量：简支梁，7.5J 15J 25J 50J或*大冲击能量由用户指定
2. 摆锤预扬角：150°
3. 刀刃夹角：75°
4. 刀刃圆角半径：0.8mm
5. 支座圆角半径：无
6. 支座前角：无
7. 冲击速度：3.8m/s
8. 摆轴中心至试样中心的距离：395mm
9. 电源：交流220V 50Hz
10. 净重：80kg
11. 支座后角：无
12. 刀刃前角：5°
13. 刀刃后角：10°
14. 支座跨距：无
15. 外形尺寸：930×520×950mm
满足标准：GB/T 1043-1993《塑料简支梁冲击试验方法》――简支梁冲击方法
本公司数显简支梁冲击试验机可对试验结果进行打印输出等功能。
Full precautions: Before starting the machine, please read this user guide carefully to prevent accidents such as accidental injury to operators or damage to the instrument. Before operation, please read "Installation and Settings" to ensure the correct installation and connection of all components of the instrument. Before the first operation, it is essential to seek guidance from experienced personnel to prevent accidental events caused by misoperation. Electric shock hazard: Ensure that all wires are disconnected before installing or repairing the instrument to prevent injury to personnel or equipment under live conditions.
Principle:
Strike the specimen supported as a horizontal beam with a known energy pendulum, and the specimen is destroyed by one impact of the pendulum. The impact lines are located in the middle of the two supports. If it is a notched specimen, the impact line should be facing the notch, and the energy absorbed by the specimen during failure should be determined based on the energy difference between the pendulum before and after impact. Then calculate the impact strength based on the original cross-sectional area of the sample.
Impact strength of notched specimens with simply supported beams
The ratio of the impact energy absorbed by the notched specimen during failure under impact load to the original cross-sectional area at the notch of the specimen, expressed in kj/m2.
Relative impact strength
The ratio of the impact strength of notched specimens to the impact strength of non notched specimens, or the ratio of the impact strength of A-type and B-type notches of similar specimens.
The ratio of the impact strength of C-type notch specimens to the impact strength of either A-type or B-type notch specimens shall not be used as a measure of relative impact strength.
Complete destruction
After one impact, the sample is divided into two or several sections.
Impact strength of simple supported beam without notch specimen
The ratio of the impact energy absorbed by the non notched specimen during failure under impact load to the original cross-sectional area of the specimen, expressed in KJ/m2.
Partial destruction
A type of incomplete failure, that is, 90% of the transverse fracture of an unnotched or notched specimen.
The LCD digital display simply supported beam impact testing machine is an instrument that tests the impact resistance of non-metallic materials such as hard plastic, nylon, hard rubber, and electrical insulation materials under dynamic load,
It is a necessary testing instrument for non-metallic material manufacturers and quality inspection departments,
It is also an indispensable testing instrument for scientific research institutions to conduct new material research.
No damage
A type of incomplete failure, where the cross-sectional fracture of an unnotched or notched specimen is less than 90%.
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