体积收缩率;
对于结晶塑料,这种压力是巨大的,因为它的体积收缩高。
With crystalline plastics this can be significant as volume shrinkage is high.
因为温度下降时空气体积收缩,上方的暖空气得以向下膨胀。
This is because the air contracts into a smaller volume at low temperatures, giving warm air above it room to expand downwards.
结果表明,MTC固化体的体积收缩率远小于水泥石的体积收缩率。
The results show that the volume shrinkage of MTC solidified body is far less than that of conventional cement.
并通过实例,对柿子干制时的体积收缩率和表面积收缩率进行了计算。
Introducing the example, volume and coverage shrinkage rate of persimmon were calculated.
计算结果表明,膜的渗透性和冷却速率是影响细胞体积收缩的主要因素。
The results indicate membrane permeability and cooling rate are main factors that affect the cell shrinkage.
结论:树脂固化时的体积收缩可在黏结层产生较大的应力,影响黏结强度。
CONCLUSION: Polymerization shrinkage of composite resin has negative effect on bonding strength of adhesives.
同时调整碳硅含量,可有效地改变灰铸铁凝固转变过程的体积收缩和膨胀特性。
By changing the carbon and silicon in a proper way at the same time, the volume expansion or shrinkage feature in the cast iron solidification can be significantly changed.
该纳米复合树脂与基体树脂相比较,体积收缩率降低38%,拉伸强度提高31%。
Compared to the matrix resin, this nano hybrid resin has shown reduction of volume shrinkage 38% and increase of tensile strength 31%.
考察了活性单体、预聚体及偶联剂对紫外光固化胶粘剂的粘接强度、体积收缩的影响。
The effect of active monomers, oligomers and couple agent on shear strength and volume shrinkage of UV-curing adhesive was investigated.
紫外光固化涂料由于固化速度快、体积收缩大,故通常存在与金属基材附着力差的问题。
Because of the rapid curing rate and big volume shrinkage, UV-curable coiling coatings are generally of bad adhesion to metal substrate.
特别是树脂的固化体积收缩率显著降低,从7%下降到0.8%,明显改善了涂膜的平整性。
The volume shrinkage of the sample was lowed from 7% to 0.8%, which apparently smoothen the film.
引入体系体积收缩率参数,对单一先驱体转化纤维增强陶瓷基复合材料致密化模型进行了修正。
The repetition cycledensity densification model is revised by introducing the volume shrinkage percentage of the composites.
混凝土膨胀剂的功能是使硬化后的混凝土产生一定的体积膨胀,抵销混凝土硬化早期产生的体积收缩。
Concrete expansion function is to produce a certain volume expansion after concrete hardening of concrete to eliminate concrete early hardening volume contraction.
结果表明:粉体与溶胶的结合减少了粉体的扩散和体积收缩,得到与不锈钢结合良好且无开裂的涂层。
The results show that the combination of ZrO2 gel and nano-powder decreases diffuse and volume shrinkage. The coating which has no crack and good combination with stainless steel is obtained.
结果表明,优化工艺后成型的复杂壳体制件的残余应力明显减小,体积收缩也比较均匀,缺陷明显减轻。
The result indicated that the residual stress in the product produced by optimized project was decreased obviously, the volumetric shrinkage was homogeneous and the defect became slight.
计算结果表明,干制后形状呈球台体较球体的体积收缩率和表面积收缩率均小,有利于表观质量的提高。
The result shows that volume and coverage shrinkage rate of persimmon in sphere cylinder are smaller than in sphere. Drying persimmon in...
研究结果表明,随着纤维产量的增加,水泥石的体积收缩率减少,最大相对体积收缩率下降了38.3% ;
The results show that: the alter of volumetric shrinkage decreases with the increase of fiber content added in cement, the maximum relative volumetric shrinkage decreases by 38.3%.
实验结果显示,本文的光顺算法不但能够有效地去除噪声,抑制体积收缩,并对特征的保持效果也较为理想。
The experimental results show that new smoothing algorithm can filter out the noise in the point data, preserve the feature well, prohibit the volume from…
注浆完成后随浆体水泥水化反应的进行和浆体水分的渗透损失,浆体体积收缩造成地层损失并引起地层位移沉降。
With the hydration of cement and liquid loss after backfill process being completed, the grout volumes shrinkage leads to ground loss and induces the ground movement.
研究结果表明,大掺量粉煤灰活性粉末混凝土具有较小的体积收缩率,抗碳化、抗氯离子渗透、耐硫酸盐浸蚀性优异。
The result shows that high content fly ash active powder concrete has small volumetric shrinkage and excellent anti-carbonization resistance to penetration of chlorine ion and to sulfate corrosion.
蛭石的添加,可以补偿部分陶粒体积收缩,且能改善陶粒孔型和结构,提高显气孔率,降低体积密度,提高陶粒抗粉化率。
Vermiculite adding can compensate for part of the ceramic volume contraction, improve shapes and structure of pore, improve porosity, lower bulk density and improve the rate of powder resistance.
结果表明,颗粒破碎程度与对其输入的塑性功密切相关;颗粒破碎的发生使钙质砂剪胀性减小,体积收缩应变增大,峰值强度降低。
The results indicate that particle breakage depends on the sample′s plastic work received during testing, and reduces the volume expansion and peak strength of the sands.
试验结果表明,添加了40%以上粉煤灰的混凝土仍有较好的强度,较好的抗氯离子渗透、抗硫酸盐侵蚀等性能,且具有较小的体积收缩率。
The results show that concrete with 40 percent fly ash has good properties of strength, resistance permeating of Cl-and resistance erosion of sulfate. Besides, it has a small shrinkage ratio.
葡萄酒体积在瓶内的膨胀或收缩,除了会使葡萄酒的口味过熟外,还可能把软木塞挤出,造成空气渗入。
On top of cooked flavors, the expansion and contraction of the liquid inside the bottle might push the cork out or cause seepage.
它们在固化过程中收缩较大或体积减少较多。
They also undergo a high shrinkage or reduction in volume during solidification.
随着熔化金属的冷却(几分钟到几天),金属收缩体积减小。
As the molten metal cools (minutes to days), the metal will shrink and the volume will decrease.
本文用自由体积理论分析了不饱和聚酯树脂的固化收缩机理。
The solidification shrinkage mechanism of unsaturated polyester resin is analysized by using free Volume theory in this paper.
提出了密封试样细管排液的体积变形测定方法,该方法可测定水泥石自初凝起的收缩。
A new method of volumetric deformation measurement is proposed, which can measure the shrinkage of cement paste from initial setting.
早期收缩开裂是导致水泥基材料劣化及体积稳定性不良的重要原因。
Early age cracking caused by shrinkage is an important reason for the deteriorations of cement-based materials and reduction of volume stability.
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