产品简介：

砂浆抗压抗折试验机为恒应力试验机，是普通压力试验机的升级产品。采用电脑数字控制，有效避免了人工操作影响，用于砂浆抗压强度和水泥胶砂的抗折抗压强度试验，也可用于砖、石、水泥、混凝土等其他材料的抗压性能试验。采用双工位的试验空间，电脑操作电脑储存电脑打印等。具有一机两用，节省空间，操作简单等优点。构紧凑操作简单，电脑显示力值曲线，自动生成试验报告等优点，是水泥厂，建筑工程单位，质检站，大专院校设备。

Product introduction:

The mortar compression and flexural testing machine is a constant stress testing machine, which is an upgrade of the ordinary pressure testing machine. The computer digital control is used to effectively avoid the influence of manual operation. It is used for the compressive strength test of mortar and cement mortar. It adopts a two-station test space, and the computer operates the computer to store the computer for printing. It has the advantages of one machine and two uses, saving space and simple operation. The structure is compact and easy to operate, the computer displays the force value curve, and the test report is automatically generated. It is a cement plant, construction engineering unit, quality inspection station, and college equipment.

技术参数：

★抗压大试验力300KN,抗折大试验力10KN

★试验力测量范围kN 12～300(4%-**FS)

★试验力示值相对误差 ≤示值的±1%

★试验力分辨率 0.1kN

★加荷速率 0.3KN/S～10KN/S（抗压）50N/s(抗折)

★加荷速度误差 ±5%

★油泵额定流量 1.52L/min

★液压泵额定压力 25Mpa

★承压板尺寸 φ155mm（抗压）80X150mm(抗折)

★活塞直径φ125mm（抗压）Φ60mm(抗折)

★活塞行程 80mm 

★电动机功率 三相0.75 kW

★外形尺寸mm 820×450×1300mm

★重量：500kg

Technical parameters:

★ Large compressive test force of 300KN, large flexural test force of 10KN

★ Test force measurement range kN 12 ～ 300 (4%-** FS)

Relative error of test force indication value ≤ ± 1% of indication value

★ Test force resolution 0.1kN

★ Loading rate 0.3KN / S ～ 10KN / S (compressive) 50N / s (flexible)

★ Loading speed error ± 5%

★ Rated flow rate of oil pump 1.52L / min

★ Hydraulic pump rated pressure 25Mpa

★ Pressure plate size φ155mm (compressive) 80X150mm (flexible)

★ Piston diameter φ125mm (compressive) φ60mm (flexible)

★ Piston stroke 80mm

★ Motor power three-phase 0.75 kW

★ Dimensions mm 820 × 450 × 1300mm

★ Weight: 500kg

工作原理：

1、液压系统

油箱内的液压油通过电机带动高压泵进入油路，流经单向阀、高压滤油器、压差阀组、伺服阀，进入油缸。计算机发出控制信号到伺服阀，控制伺服阀的开口和方向，从而控制进入油缸的流量，实现等速试验力的控制。

2、控制系统

系统包括数字伺服阀，高精度传感器，控制器及软件，控制精度高，可靠性好。满足GB、ISO、ASTM等标准对水泥、砂浆、混凝土等材料的试验要求。 

Third, the working principle:

1.Hydraulic system

The hydraulic oil in the fuel tank drives the high-pressure pump into the oil circuit through the motor, flows through the check valve, high-pressure oil filter, differential pressure valve group, servo valve, and enters the oil cylinder. The computer sends a control signal to the servo valve to control the opening and direction of the servo valve, so as to control the flow rate into the oil cylinder and realize the control of constant speed test force.

2.Control system

The system includes digital servo valves, high-precision sensors, controllers and software, with high control accuracy and good reliability. Meet GB, ISO, ASTM and other standards for the test requirements of cement, mortar, concrete and other materials.