硬质塑料数显简支梁冲击试验机

硬质塑料数显简支梁冲击试验机  Overview

The LCD digital display simply supported beam impact testing machine is an instrument that tests the impact resistance performance of non-metallic materials such as hard plastics, nylon, hard rubber, and electrical insulation materials under dynamic loads,

It is an essential 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.

硬质塑料数显简支梁冲击试验机  Main technical parameters

（1） Impact energy: simply supported beam, 7.5J 15J 25J 50J or maximum impact energy specified by the user

（2） Pendulum pre lift angle: 150 °

（3） Impact speed: 3.8m/s

（4） Distance from the center of the pendulum to the center of the specimen: 395mm

（5） Blade angle: 75 °

（6） Blade fillet radius: 0.8mm

（7） Support fillet radius: None

（8） Front corner of support: None

（9） Rear corner of support: None

（10） Blade front angle: 5 °

（11） Blade back angle: 10 °

（12） Support span: None

（13） Power supply: AC 220V 50Hz

（14） External dimensions: 930 x 520 x 950mm

（15） Net weight: 80kg

Impact strength of a simply supported beam without notches

The ratio of the absorbed impact energy during failure of a non notched specimen under impact load to the original cross-sectional area of the specimen, expressed in KJ/m2.

Impact strength of notched specimens on simply supported beams

The ratio of the absorbed impact energy during failure of a notched specimen 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 that of non notched specimens, or the ratio of the impact strength of A-type and B-type notches in similar specimens.

The ratio of the impact strength of C-type notched specimens to the impact strength of either A-type or B-type notched specimens shall not be used as a measure of relative impact strength.

Complete destruction

After a single impact, the sample is divided into two or several sections.

Partial destruction

A type of incomplete failure, which refers to the transverse fracture of 90% of the non notched specimen or notched specimen.

No damage

A type of incomplete failure, where the cross-sectional fracture of the non notched specimen or notched specimen is less than 90%.

Principle:

Use a pendulum with known energy to strike a specimen supported as a horizontal beam, and the specimen is destroyed by a single impact of the pendulum. The impact lines are located at the center of the two supports. If it is a notched specimen, the impact lines should be facing the notch. The energy difference between the pendulum before and after the impact is used to determine the energy absorbed by the specimen during failure. Then calculate the impact strength based on the original cross-sectional area of the sample.

Meet the standard: GB/T 1043-1993 "Method for Impact Test of Simply Supported Plastic Beams" - Simply Supported Beam Impact Test

Our company's digital simply supported beam impact testing machine has functions such as printing and outputting test results.

As a necessary equipment for controlling product quality, the simply supported beam impact testing machine requires operators to learn how to troubleshoot and ensure good operation of the machine during use.

This machine adopts semi-automatic control, which is easy to operate and has high work efficiency. The dedicated LCD display screen equipped with this device can display real-time information. Printable output.

概述  

液晶数显简支梁冲击试验机是对硬质塑料、尼龙、硬橡胶、电气绝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家、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。

主要技术参数Main technical parameters

（一）冲击能量：简支梁，7.5J  15J  25J  50J或最大冲击能量由用户指定

（二）摆锤预扬角：150°

（三）冲击速度：3.8m/s

（四）摆轴中心至试样中心的距离：395mm

（五）刀刃夹角：75°

（六）刀刃圆角半径：0.8mm

（七）支座圆角半径：无

（八）支座前角：无

（九）支座后角：无

（十）刀刃前角：5°

（十一）刀刃后角：10°

（十二）支座跨距：无

（十三）电源：交流220V  50Hz

（十四）外形尺寸：930×520×950mm

（十五）净重：80kg

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。

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型任一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

经达一次冲击使试样分成两段或几段。

部分破坏

一种不完全破坏，即无缺口试样或缺口试样的横断开90%。

无破坏

一种不完全破坏，即无缺口试样或缺口试样的横断面断开部分小于90%。

原理：

用已知能量的摆锤打击支承成水平梁的试样，由摆锤一次冲击使试样破坏。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。

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。

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。

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。

主要产品有：

拉力试验机，  塑料球压痕硬度计，维卡热变形试验仪，     体积表面电阻率测试仪

海绵泡沫落球回弹试验机，海绵泡沫拉伸强度试验机，耐压试验机，              介电常数测试仪

海绵泡沫压陷硬度测验仪，          介质损耗测试仪

哑铃制样机，海绵泡沫疲劳压陷试验机，          薄膜冲击试验机

熔融指数仪，     无转子硫化仪，电压击穿试验仪，                  摩擦系数仪

低温脆性冲击试验仪                阿克隆磨耗试验机等。