YB/T 5116-1993 粘土质和高铝质耐火可塑料试样制备方法/Method for sample preparation of fireclay and high alumina plastic refractories
粘土质和高铝质耐火可塑料试样制备方法
本标准适用于检验粘土质和高铝质耐火可塑料理化性能的试样制备。
1 设备
1.1.成型压力机 可采用各种类型的压力机。
1.2 天平 最大称量5kg，分度值1g。
1.3 模具 由模框、盖板和底板组成，其内表面应光滑平整。
脱模后试样的尺寸应符合下列要求:
长度160 ±1.0mm
宽度40±0.5mm
高度40±0.1mm
1.4 钢板尺 最小分刻度0.5mm。
1.5 电热干燥箱。
2 试样制备
2.1 缩分
按YB/T 5115-93《粘土质和高铝质耐火可塑料》第 4.3条规定取样，将样品均分成2份。1份供检验用;1份用作保留样。
将检验用样品分成小于30mm的小块，在不吸水的容器内搅拌均匀后，放在密封容器内，贮存在温度较低场所，供各检验项目用。
2.2 线变化率和强度检验用试样成型
称取适量搅拌均匀样品，以70kgf/cm2(6.86MPa)压力在模具内压制成型。脱模后移至刚性平板(例如玻璃板等)上，保持成型面向上，试样尺寸应符合第1.3条规定，否则弃去重做。
试样应在室温下存放24h以上，方可进行烘干。
3记录
应包括下列各项:
委托单位;
样品名称、牌号、批号和生产日期;
取样和试样制备日期;
试验人员。
Method for sample preparation of fireclay and high alumina plastic refractories
This standard is applicable to the preparation of samples for testing the physical and chemical properties of clay and high alumina refractory plastics.
1 Device
1.1. Various types of forming presses can be used.
1.2 The maximum weighing weight of the balance is 5kg, and the index value is 1g.
1.3 The mold is composed of a die frame, a cover plate and a bottom plate, and its inner surface should be smooth and flat.
The size of the sample after demoulding shall meet the following requirements:
Length 160 ±1.0mm
Width 40±0.5mm
Height 40±0.1mm
1.4 The minimum dividing scale of the steel ruler is 0.5mm.
1.5 Electric drying oven.
2 Sample preparation
2.1 Reduced score
Sample according to YB/T 5115-93 “Clay and high alumina refractory Plastics” article 4.3, divide the sample into 2 parts. 1 copy for inspection; 1 copy for reserve sample.
The test sample is divided into small pieces less than 30mm, stirred evenly in a non-absorbent container, placed in a sealed container, and stored in a place with low temperature for each test item.
2.2 Line change rate and strength test with sample molding
Weigh and stir the sample evenly, and press it into the mold at 70kgf/cm2(6.86MPa) pressure. After demoulding, move to a rigid plate (such as glass plate, etc.), keep the molding facing upward, and the sample size shall comply with the provisions of Article 1.3, otherwise discard and retry.
The sample should be stored at room temperature for more than 24 hours before drying.
3 Records
The following shall be included:
The entrusted unit;
Sample name, brand number, batch number and production date;
Date of sampling and sample preparation;
The experimenter.
