重烧线变化

以氧化铝空心球为骨料，基质中加入适量的SiO2及硅线石，生产出了热震稳定性好、重烧线变化率小的氧化铝空心球砖。

Using alumina bubble as aggregate and adding an amount of silica and sillimanite in the matrix , an alumina bubble brick with good thermal shock resistance and low reheating linear change has been developed .

GB/T5988-1986致密定形耐火制品重烧线变化试验方法

Dense shaped refractory products & Test method of linear changes on reheating

测定高铝砖重烧线变化率的新方法

A New Method for Determining Reheating Linear Change Rate of High Aluminum Brick

硫化橡胶及热塑橡胶的永久变形的测定GB/T3997.1-1998定形隔热耐火制品重烧线变化试验方法

Permanent set testing methods for rubber , vulcanized or thermoplastic Shaped insulating refractory products & Determination of permanent Change in dimension on heating

注：砖的工作温度不超过重烧线变化的度验温度。表面导热系数指标为平板法试验数值。

N. B. The using temperature of bricks should not exceed the experimental temperature of Linear Change after Heating . The above Heat-Conduction Coefficent is obtained by using flat-plate method .

在测定高铝砖试样的重烧线变化率时，用抽真空&液体静力称量法和直接浸液法作了对比试验。

In determining reheating linear change rate of high aluminum brick sample , the contrastive experiments are done with the evacuation hydrostatic weighing method and the direct immersion method when are determined .

结果表明，前者测得的结果重现性、稳定性更好，而用后一种方法时间因素对试验结果的影响较大，建议用前一种方法测定致密耐火制品非标准试样的重烧线变化率。

The results show that the reproducibility and stability of the former are better , and in the latter , the time factor affects greatly experiment results , therefore , it is suggested that determining reheating linear change rate of the nonstandard samples of dense refractory products with the former .