It also states their cause and prevention measures as well as the treatment of hardened plastic concrete cracks.
它们的成因和防范措施以及对已硬化塑性混凝土裂缝的处理。
Thermal plastic and plastic is defined as a specific temperature range can be repeated heating and cooling to soften hardened plastic such as polyethylene, PTFE and so on.
热塑料性塑料是指在特定温度范围内能反复加热软化和冷却硬化的塑料，如聚乙烯、聚四氟乙烯等。
The results show that the pre-hardened plastic-mould steel belongs to a little low machinability steel because of much hard inclusion existing in microstructure and its high strength and hardness.
结果表明，这类材料属较难加工材料，这主要是由于钢中存在大量硬质点，且材料具有较高强度和硬度所致。
The material in the large plastic zone has been hardened .
在大塑性区内材料已经硬化。
Plastic parts made of hardened PVC, PE or similar materials, and non-ferrous metal composites, are transferred to a separate utilisation.
硬化的PVC,PE或者类似的材料以及非铁金属复合材料中的塑料部分可以再利用。
Gear trains are customized to meet torque requirements and may be furnished in plastic, brass, hardened steel, or a combination of these materials.
齿轮组被定做以满足扭矩要求，可以使用塑料，铜，硬质钢或这些材料的合成物。
During ausform finishing process of hardened gears, there is plastic displacement of metal on the tooth surface and the distortion of tooth profile.
在齿轮热滚挤加工中，轮齿上的金属在强制挤压力的作用下沿齿面产生塑性流动，使齿形发生变化。
In addition, the fatigue life decreases after nitrocarburizing, are because the surface hardened layer leads to the plastic behavior loss of a whole material.
另外，共渗处理疲劳寿命的降低是表面强化层造成整体材料的塑性损失的结果。
In addition, the fatigue life decreases after nitrocarburizing, are because the surface hardened layer leads to the plastic behavior loss of a whole material.
另外，共渗处理疲劳寿命的降低是表面强化层造成整体材料的塑性损失的结果。
应用推荐