这种加强的负作用通常是抗冲击强度降低及磨损性增加。
The negative effect of this reinforcement is usually a decrease in impact strength and an increase in abrasiveness.
在性能方面，强度被显著地提高，机械疲劳性能变化不明显，冲击韧性和塑性降低。
On mechanical properties, the strength was raised obviously, fatigue property was unchanged, impact toughness and ductility were reduced.
研究结果表明：高温热压后的板材吸湿性降低，尺寸稳定性好，但热压温度过高会产生木材热分解，冲击强度略有降低。
The results showed moisture adsorption of the platen dried veneer was lower and its dimensional stability was better, but its impact strength dropped when pressing temperature was too high.
它主要是由于热处理之后大量保留了稳定的亚组织，提高了材料的强度、塑性指标，而不降低材料的冲击韧性。
The treatment improves the tensile strength and ductility of the alloy without reduction of its impact toughness, chiefly because a large amount of substructure remains in it after the heat treatment.
老化初期， 结晶为主导因素，它增加杨氏模量、最大拉伸应力，但使材料变脆，降低冲击强度；
It increased the Youngs modulus and the maximum tensile stress but it became brittle and decreased the impact strength.
在经历多次的热冲击后，粘接强度先降低，而后趋于稳定，并呈现出一定程度的回升。
The adhesive strength decreases at beginning and then stabilizes or back_jumps to some extent after several times for thermal shock.
随着核壳粒子橡胶相尺寸的减小，改性体系的冲击强度逐渐增加，内应力降低，但对体系的剪切强度影响并不显著。
With the decrease of core sizes, the impact strength modified systems increases and the internal stress of modified systems decreases apparently, while shearing strength changes slightly.
当复合冲击改性剂用量为12份时，材料的冲击强度达到最大值，其它力学和热性能降低不大。
The results showed that the impact strength(notched) of the composite was maximum and the mechanical and thermal properties were less decreased, when the dosage of modifier was 12 PHR.
纤维的加入一般增加了拉伸强度，却降低了冲击强度，而且在含量不太高的情况下，含聚丙稀腈碳纤维材料的强度优于含沥青纤维的材料。
When the fibers were added, in general, the tensile strength increases, but the impact strength decreases, and when the content is not too high, the strength of the material AD...
在超薄玻璃层上镀 覆超硬膜并贴合防裂膜，具有较高的附着力和抗划伤能力、抗冲击强度，明显降低生产成 本，产品的生产效率及良品率以及使用的安全性均得到有效提高。
The cellphone window protecting screen has high impact strength, high scratch resistance and high safety, and the process has low production cost, high production efficiency and high product quality.
适当的微波处理和汽蒸处理使试材的抗弯强度、抗弯弹性模量和冲击韧性并不明显降低。
There was little change in the bending strength, Young's modulus and dynamic ductility of the test wood treated by microwave irradiation and steaming appropriately.
对于液滴状分散相共混物，共混物的缺口冲击强度和拉伸强度随着基体层厚度的降低而提高。
For the blends with droplets phase morphology, the Izod impact strength and tensile strength increased when matrix ligament thickness decreased.
加入少量木粉使木塑复合材料力学性能降低，但随着木粉添加量的增大，木塑复合材料的抗弯性能和拉伸强度上升；木塑复合材料的冲击强度随木粉含量增加而下降。
With the mass increasing of wood flour in the composites, the flexural modules and tensile strength of the composites were increased, whereas the impact strength was continuously decreased.
结果表明，发泡后的复合材料密度明显降低，发泡剂含量为1.5%时发泡复合材料的密度降低了17%，冲击强度提高了20%。
The result showed that the density of composite by foaming was obviously reduced. With the 1.5% foaming agents added, the density was reduced by 17% and the impact strength was increased by 20%.
随硅含量的增加，材料的硬度逐渐增大，抗拉强度逐渐减小，冲击韧度逐渐降低；
The addition of Si decreases the tensile strength and impact toughness of the composite. But the hardness of the composite increases.
结果指出：abs抗冲击强度随试验温度下降而降低。
The results shown that the impact strength decreased with decreasing testing temperature.
在抗张强度没有明显降低的条件下，新创立的双时效比正常时效的冲击疲劳寿命与动态断裂韧性分别延长和提高了35 。
By our new way of double aging, on which we have done research since 2002, the impact fatigue life can be prolonged by 35.
增韧尼龙1 2 1 2的冲击强度大幅提高，断裂伸长率也有提高，拉伸强度并未显著降低。
After toughened, the impact strength of nylon 1212 was increased remarkably, the elongation was also increased, and tensile strength was not decreased too much.
这种偶联剂使复合材料的抗冲击强度明显提高、硬度降低、耐磨性有较大的提高而摩擦系数略有降低。
The coupling agent can evidently increase impact strength of the composite. Coupling agent, lower the hardness and friction coefficient o…
结果表明：未改性的纳米碳酸钙显著提高了复合材料的弹性模量、断裂伸长率和冲击强度，但复合材料的拉伸强度有所降低。
The results showed that unmodified nano-CaCO_3 had important effect on the improvement of the elastic modular, elongation at break and impact strength of PTFE. But the tensile strength was decreased.
结果表明：未改性的纳米碳酸钙显著提高了复合材料的弹性模量、断裂伸长率和冲击强度，但复合材料的拉伸强度有所降低。
The results showed that unmodified nano-CaCO_3 had important effect on the improvement of the elastic modular, elongation at break and impact strength of PTFE. But the tensile strength was decreased.
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