供应

北京撕裂、90?剥离、剪切强度试验机  常见故障：

1：上升、下降、试验操作时，按下键后显示停止

  解决方案：1：检查系统设置当前量程设置和过载保护率

            2：检查速度参数是否变化

            3：检查传感器是否过载

2：上电后仪表蓝屏

解决方案：1：重新上电

           2：重新上电如果不行，拿到没有干扰的地方上电试一下

           3：联系生产厂家更换液晶屏

3：横梁不移动

 解决方案：1：检查数据线是否连接号

           2：检查是否过载，传感器是否损坏

           3：是否限位，移动磁铁

4：仪表不准确

解决方案：  1：传感器是否损坏

             2：调整了标定系数

             3：是否年检

北京撕裂、90?剥离、剪切强度试验机   环境与工作条件

在下列条件下试验机应能正常工作：

a) 室温10℃～35℃范围内；

b) 相对湿度不大于80％；

c) 周围无振动、无腐蚀性介质和无较强电磁场干扰的环境中；

d) 电源电压的变化在额定电压的?10％以内；

e) 在稳固的基础上正确安装，水平度为0.2／l 000。

5.1.1 一般要求

5.1.1.1 试验机机架应具有足够的刚性和试验空间，应能方便地进行各种试验并应便于试样、试样夹具和试验机附件的装卸以及标准测力仪的安装与使用。

5.1.1.2 试验机在施加和卸除力的过程中应平稳，无冲击和振动现象。

5.1.2 拉伸试验夹持装置

5.3.2.1   拉伸试验的试样夹持装置在任意位置上和施加力的过程中，上、下夹头和试样钳口的中心线应与试验机的加力轴线同轴，其同轴度：

      ——对于最大容量不大于5kN的试验机不应超过Ф2mm/500 mm；

      ——对于最大容量大于5kN的试验机应符合表4的规定。

表4  同轴度最大允许值

5.3.2.2   夹头应保证夹持可靠，在夹持部分的全长内应均匀地夹紧试样，并应能对试样施加试验机的最大力值。在加力状态下或试验过程中试样与夹头不应产生相对滑移。

5.3.2.3  夹头在卸除力或做试样的拉断试验后，钳口各部位应无损伤。

5.3.2.4  钳口应具有互换性。

特殊测试项目： 

A. 弹性系数即弹性杨氏模量定义：同相位的法向应力分量与法向应变之比。为测定材料刚性之系数，其值越高，材料越强韧。
B.比例限：荷重在一定范围内与伸长可以维持成正比之关系，其醉大应力即为比极限。
C.弹性限：为材料所能承受而不呈永久变形之醉大应力。
D.弹性变形：除去荷重后，材料的变形完全消失。
E.永久变形：除去荷重后，材料仍残留变形。
F.屈服点：材料拉伸时，变形增快而应力不变，此点即为屈服点。屈服点分为上下屈服点，一般以上屈服点作为屈服点。屈服(yield)：荷重超过比例限与伸长不再成正比，荷重会突降，然后在一段时间内，上下起伏，伸长发生较大变化，这种现象叫作屈服。
G.屈服强度：拉伸时，永久伸长率达到某一规定值之荷重，除以平行部原断面积，所得之商。
H.弹簧K值：与变形同相位的作用力分量与形变之比。
I.有效弹性和滞后损失：
在拉力试验机上，以一定的速度将试样拉伸到一定的伸长率或拉伸到规定的负荷时，测定试样收缩时恢复的功和伸张时消耗的功之比的百分数，即为有效弹性；测定试样伸长、收缩时所损失的能与伸长时所消耗的功之比的百分数，即为滞后损失。

适用范围：

广泛应用于电线电缆、纺织物、防水材料、无纺布、安全带、橡胶、塑料、薄膜、钢丝绳、钢筋、金属丝、金属箔、金属板材和金属棒丝等金属材料和非金属材料及零部件产品进行拉伸、压缩、弯曲、撕裂、90?剥离、180?剥离、剪切、粘合力、拔出力、延伸伸长率等试验，以及一些产品的特殊力学性能试验。

Common faults:

1: When performing ascending, descending, or experimental operations, pressing the key will display 'stop'

Solution: 1: Check the current range setting and overload protection rate of the system settings

2: Check if the speed parameters have changed

3: Check if the sensor is overloaded

2: Blue screen on the instrument panel after power on

Solution: 1: Power on again

2: If it doesn't work, try powering it on in a place without interference

3: Contact the manufacturer to replace the LCD screen

3: The crossbeam does not move

Solution: 1: Check if the data cable has a connection number

2: Check if there is overload and if the sensor is damaged

3: Is there a limit, move the magnet

4: Inaccurate instrument

Solution: 1: Is the sensor damaged

2: Adjusted the calibration coefficient

3: Is it an annual inspection

Environment and working conditions

The testing machine should be able to operate normally under the following conditions:

a) Within the temperature range of 10 ℃ to 35 ℃ at room temperature;

b) Relative humidity not exceeding 80%;

c) In an environment without vibration, corrosive media, and strong electromagnetic interference;

d) The variation of power supply voltage is within ? 10% of the rated voltage;

e) Install correctly on a stable foundation, with a levelness of 0.2/1000.

5.1.1 General Requirements

5.1.1.1 The testing machine frame should have sufficient rigidity and testing space, and should be able to easily conduct various tests. It should also be convenient for the loading and unloading of specimens, specimen fixtures, and testing machine accessories, as well as the installation and use of standard force measuring instruments.

5.1.1.2 The testing machine should be stable during the application and removal of force, without any impact or vibration phenomena.

5.1.2 Tensile test clamping device

5.3.2.1 During the process of applying force and at any position, the center lines of the upper and lower clamps and specimen jaws of the specimen clamping device for tensile testing should be coaxial with the force axis of the testing machine, and their coaxiality should be:

——For testing machines with a maximum capacity of no more than 5kN, the diameter should not exceed 2mm/500mm;

——For testing machines with a maximum capacity greater than 5kN, they should comply with the provisions of Table 4.

Table 4 Maximum allowable coaxiality values

Maximum allowable coaxiality of testing machine level

%

0.5 12

1 15

5.3.2.2 The clamp should ensure reliable clamping, and the specimen should be uniformly clamped along the entire length of the clamping part, and should be able to apply the maximum force of the testing machine to the specimen. There should be no relative slip between the specimen and the clamp under applied force or during the testing process.

5.3.2.3 After unloading the force or conducting a tensile test on the specimen, all parts of the clamp should be undamaged.

5.3.2.4 The jaws should have interchangeability.

Special testing items:

A. The elastic coefficient, also known as the Young's modulus of elasticity, is defined as the ratio of the normal stress component to the normal strain in the same phase. To determine the coefficient of material rigidity, the higher the value, the stronger the material.

B. Proportional limit: The load can maintain a proportional relationship with elongation within a certain range, and its maximum stress is the specific limit.

C. Elastic limit: The maximum stress that a material can withstand without permanent deformation.

D. Elastic deformation: After removing the load, the deformation of the material completely disappears.

E. Permanent deformation: After removing the load, the material still retains deformation.

F. Yield point: When a material is stretched, the deformation increases while the stress remains constant, and this point is called the yield point. The yield point is divided into upper and lower yield points, and generally the upper yield point is taken as the yield point. Yield: When the load exceeds the proportional limit and elongation is no longer proportional, the load will suddenly drop, and then fluctuate up and down over a period of time, causing significant changes in elongation. This phenomenon is called yield.

G. Yield strength: The quotient obtained by dividing the load at which the permanent elongation reaches a specified value during stretching by the original cross-sectional area of the parallel part.

H. Spring K value: the ratio of the force component in phase with the deformation to the deformation.

I. Effective elasticity and hysteresis loss:

On a tensile testing machine, when the specimen is stretched at a certain speed to a certain elongation or to a specified load, the percentage of the recovered work during shrinkage and the consumed work during stretching is measured as the effective elasticity; The percentage of the energy lost during the elongation and contraction of a sample compared to the work consumed during elongation is called hysteresis loss.

Scope of application:

Widely used in tensile, compressive, bending, tearing, 90 ? peeling, 180 ? peeling, shear, adhesion, pull-out force, elongation at extension and other tests for metal and non-metal materials and component products such as wires and cables, textiles, waterproof materials, non-woven fabrics, seat belts, rubber, plastic, film, steel wire ropes, steel bars, metal wires, metal foils, metal sheets and metal rods, as well as special mechanical performance tests for some products.

关于仪器质保：1、北广仪器保证提供的设备为需方指定的全新设备，其各项技术指标均符合相关的产品技术要求。2、设备经客户验收合格后，开始计算保修期，设备免费保修期为壹年，设备在质量保质期内，产品在非人为损坏的情况下，由北广仪器负责全保。北广仪器的客服在得到通知后24小时内响应，安排约定维修细节。3、质保期后，我们免费为您维修维护设备，除大型设备外所有设备一律返厂维修，经检验后，电话告知客户问题所在及解决方式，经客户同意后进行维修，维修后发回客户，对于损坏及更换的零部件我们只收取成本费；如客户不认同我们的检验结果，双方另协商维修细节。

安全注意事项：开机之前，敬请仔细阅读本使用指南，以防止出现对操作人员的意外伤害或对仪器的损坏等的事件。操作前，请阅读“安装与设置”，保证对仪器各部件的正确安装与连接。在第一次操作前，务必请有操作经验的人员进行指导，防止误操作造成意外事件的发生。电击危险： 确保在安装或维修该仪器之前使所有导线断电，防止在带电情况下，对人员或设备造成伤害。

北广精仪公司电性能及橡胶塑料相关产品：

BWN拉力材料试验机（符合国标GB/T1172-1999、GB/T2975-1998、GB/T10632-1989）

BDJC-10KV-200KV电压击穿试验仪（符合国标GB1408-2006、GB/T1695-2005、GB/T3333、HG/T 3330、GB12656、ASTM D149）

BEST-121体积表面电阻率测定仪（符合国标GB/T 1410、2439、10581、1692、12703.4、10064、ASTM D257-99）

BQYH-96塑料球压痕硬度计（符合国标GB/T3398-2008）

BEST-19导体材料电阻率测试仪

M-200橡胶塑料滑动摩擦试验机（国标，非国标，可定制）

GDAT-A介电常数介质损耗测试仪（可测试固体液体

BQS-37A高频介电常数介质损耗测试仪

BDH-20KV绝缘材料耐电弧性能试验仪/高电压小电流测试仪

BWK-300A液显热变形维卡软化点温度测定仪

BQYH-96塑料球压痕硬度计

BRT-400Z熔体流动速率测定仪/熔融指数仪

BMD-A计算机控制马丁耐

HMYX-2000海绵泡沫压陷硬度测定仪

HMLQ-500海绵泡沫落球回弹仪

HMPL-2000海绵泡沫疲劳冲击测定仪

HMLS-1000海绵拉伸强度试验机

HMYS-200海绵压缩永久变形试验机

HMMD-A海绵密度测定仪

JF-3氧指数测定仪

XCY-III低温脆性试验机

BLD-600V漏电起痕试验仪

BLD-6000V高压漏电起痕试验仪

BLC-2000落球冲击试验机

BLB-30管材落镖冲击试验机

BCM-03摆锤薄膜冲击试验机

CZF-5水平垂直燃烧试验仪

BZR-A汽车内饰材料阻燃性能试验机

BYL-01哑铃制样机

BJ-50简支梁冲击试验机  

BX-50悬臂梁冲击试验机

BM-201门尼粘度试验机

BL-200无转子硫化仪

cp-s冲片机手动  

cp-q气动冲片机