| 1. | The solution of heating expansion and cold contraction to eliminate the heating expansion and cold contraction , we embed metal mesh into ptfe liner 热胀冷缩的解决方法:采用ptfe层中加钢丝网,来消除热胀冷缩,提高强度,消除蠕变。 |
| 2. | The heat expansion coefficient of plastic is much higher than metal caused by abrasion heat and the change of environment condition . plastic gear needs enough gap 因磨擦热和环境条件的变化,塑料比金属热膨胀系数高许多,塑料轮需要足够的 |
| 3. | E - commerce went from heated expansion to desolate depression and from visual definition to survival struggle . its essential reason is that logistics cannot adapt to the new characteristics of e - commerce 它从极度膨胀到冷落萧条,从虚拟概念走向务实求生存,究其根源,在于物流无法适应电子商务的新特征。 |
| 4. | The heat expansion coefficient of casting nylon materials is about 10 times larger than steel , so the internal dia shrinks caused by the expansion . it will influence the connection gap of the abrasive surface 铸型尼材料的热膨胀系数约比钢材大10倍左右,所以轴套在运行时由于摩擦热所造成的膨胀变形使内径缩小,影响摩擦面的配合间隙。 |
| 5. | In the nibco design stop - checks , you will note that the disc is mounted to permit the disc to settle into the seat area for positive sealing in case there is any misalignment due to assembly or uneven heat expansion 从美国尼伯科的截止止回阀结构设计中,人们可能会注意到,万一出现由于组装问题或不稳定的热膨胀导致的中心线错位,所安装的阀瓣能够适应阀座区域的要求主动调整密封。 |
| 6. | Tank containers must be filled to at least 80 % , to avoid dangerous surging - swell during transport . tank containers generally must not be filled to more than 95 % to allow for possible heat expansion . tank equipped for top or bottom discharge 本文设计的iso1cc黄磷罐式集装箱即根据集装箱的原则条件及imdg规定的危险品运输规则进行设计,并针对黄磷的物性进行了安全实用的结构设计和装、卸操作系统设计。 |
| 7. | 1 . 20m - 60m mica powder is mainly used in electric welding ; 2 . 60m - 325m is used in mica ceramics for its good performance in insulation , maintain uncarbonized under strong electric arc , long time performance in the heat of 350c . its heat expansion coefficient is adjustable as required 工业上主要利用它的绝缘性和耐热性,以及抗酸抗碱性抗压和剥分性,用作电气设备和电工器材的绝缘材料其次用于制造蒸汽锅炉冶炼炉的炉窗和机械上的零件。 |
| 8. | The teflon compensator , may call the corrugated pipe , also called theinflation festival , it may use for to eliminate the pipeline , thevessel either the equipment and so on the expansion and contractionwhich causes because of the climatic change or because otheroriginally thus cause heat expansion or displacement ; as one kind ofslow shaker 聚四氟乙烯补偿器,可称波纹管,又称膨胀节,它可用来消除管道、容器或设备等因气候变化而引起的伸缩或因其他原因而导致的热膨胀或位移;作为一种缓振器。 |
| 9. | In the joint of lg pex - a pipe , male xocket is pressed to a convex on the inserting part and the fastening ring will contract to fasten up the heating pipe by the fastening of outer nut , and there is also a convex on the ring to offer close coupling by mechanical re - press effect to prevent water from leaking in case of heat expansion 在lg地热管中的连接部位不仅阀门管套插入部分的凸起部位被机械作用压密,而且随着外部螺母被拧紧,使紧固环收缩,从而带紧热炕暖气管,另外由于存在凸起部位,可通过机械作用进行再次压密,因此可防止由于热膨胀而引起漏水。 |
| 10. | But it also includes two fatal disadvantages : first , at is difficult to be sintered and its density is low , which causes its lower strength ; second , in the temperature range of 1023 - 15 73 k , at can decompose into al2o3 and tio2 easily , which can cause the stress concentrated and raise the heat expansion rate 但是该材料本身存在的两大致命的缺点,在很大程度上限制了它的广泛应用: ( 1 ) 、钛酸铝难以烧结,烧结体的致密度低,因而强度不高; ( 2 ) 、在750 1300的温度范围内易分解成氧化铝和二氧化钛,造成材料内部应力集中,并使材料的热膨胀率升高。 |