腾达试验仪器厂：

　　一、产品简介：

　　177ml标准挤出筒符合GB16776-2005建筑用硅酮结构密封胶，是测量挤出性的工具。建筑用硅酮结构密封胶挤出筒分内筒和外筒，内筒直径40.1mm，长度179mm，容量177ml。挤出性试验器具：空气压缩机、稳压气源、恒温试验箱、秒表、天平、玻璃量筒1000ml。它适用于测定单组分密封材料的挤出性及多组分密封材料的适用期。利用压缩空气在规定条件下从标准器具中挤出规定体积的密封材料。对单组份密封材料，以单位时间内挤出的密封材料体积报告其挤出性；对多组份密封材料，以绘图的方法报告其适用期。建筑密封胶挤出器完全符合GB/T13477.3-2017《建筑密封材料试验方法》第3部分：使用标准器具测定密封材料挤出性和适用期的方法中对挤出器的要求，标准挤出器材质的要求，使其符合ISO9048标准的要求。

　　the product introduction:

　　The 177ml standard extrusion cylinder meets the GB16776-2005 structural silicone structural sealant and is a special tool for measuring extrudability.The silicone structural sealant for construction is divided into an inner cylinder and an outer cylinder.The inner cylinder has a diameter of 40.1 mm,a length of 179 mm,and a capacity of 177 ml.Extrusion test equipment:air compressor,regulated gas source,constant temperature test chamber,stopwatch,balance,glass measuring cylinder 1000ml.It is suitable for determining the extrudability of one-component sealing materials and the pot life of multi-component sealing materials.A predetermined volume of sealing material is extruded from a standard appliance using compressed air under specified conditions.For one-component sealing materials,the extrudability is reported in the volume of the sealing material extruded per unit time;for multi-component sealing materials,the pot life is reported by drawing.The construction sealant extruder is in full compliance with GB/T13477.3-2017"Test Methods for Building Sealing Materials"Part 3:Requirements for extruders in the method of determining the extrudability and pot life of sealing materials using standard instruments,standard extrusion The requirements of the material of the device are such that it meets the requirements of the ISO9048 standard.

　　二、技术参数：

　　★挤出器试验体积：250ML、400ML

　　★挤出孔的直径：φ2mm、φ4mm、φ6mm、φ10mm共四种。

　　Second,technical parameters:

　　★Extruder test volume:250ML,400ML

　　★The diameter of the extrusion hole:φ2mm,φ4mm,φ6mm,φ10mm.

　　三、结构及原理：

　　★挤出器主要由挤出桶、活塞、前后盖及孔板等组成。

　　★它的工作原理是利用压缩空气在规定压力下标准器具中挤出规定体积的密封材料。对单组分密封材料，以单位时间内挤出的密封体积报告其挤出性；对多组分密封材料，以绘图的方法报告其适用期。

　　Third,the structure and principle:

　　★The extruder is mainly composed of extrusion barrel,piston,front and rear cover and orifice plate.

　　★It works by using compressed air to extrude a specified volume of sealing material in a standard appliance at a specified pressure.For a one-component sealing material,the extrusion property is reported in a sealed volume extruded per unit time;for a multi-component sealing material,the pot life is reported by a drawing method.

　　四、组装与使用：

　　★将活塞和活塞环装在一起，放入挤出筒中，活塞环的一侧朝向挤出孔。将试样填入挤出筒中，注意勿混入空气，将填满的试样表面修平，然后将前盖、孔板及后盖装在挤出筒上。

　　★使滑板处于关闭状态，将组装好的挤出器与空压机相连接。使挤出器置于相关产品标准规定的空气压力之下，在整个试验过程中保持压力稳定。

　　★测试之前挤出（2-3）cm长的试样，使试样充满挤出器的孔。

　　Fourth,assembly and use:

　　★Install the piston and piston ring together and place them in the extrusion cylinder with one side of the piston ring facing the extrusion hole.Fill the sample into the extrusion cylinder,taking care not to mix air,flatten the surface of the filled sample,and then install the front cover,orifice plate and back cover on the extrusion cylinder.

　　★The slide is closed and the assembled extruder is connected to the air compressor.The extruder was placed under the air pressure specified by the relevant product standard and the pressure was maintained throughout the test.

　　★Extrude the(2-3)cm long sample before testing to fill the sample with the well.