| 1. | On the generating cause of strength deck cracking happened on a bulk carrierand way of repairing
某散货船强力甲板裂纹的产生原因浅析及其修复措施 |
| 2. | Cold cracks will be avoided when the width and height of cavity is accurately chosen
文章通过试验确定了最佳的空腔尺寸，此时可防止冷裂纹的产生。 |
| 3. | Increasing the distance from oil hole to inner annulus of the stuffing box can prevent the fatigue
适当增加输油孔到填料盘内环的距离可以预防裂纹的产生。 |
| 4. | The rolling axletree in the power plants may split during the long time running
摘要火电站的发电机组的滚动轴承由于在长时间的运行和碰撞中，有可能导致裂纹的产生。 |
| 5. | The actual modeling and analysis therefor leads to the discovery of stress distribution under loading , which provides strong evidence for the cause of crack of the rotating platform
通过对装卸型门机转台筒体结构的实体建模与分析，发现了其在载荷作用下的应力分布情况，为转台筒体裂纹的产生原因提供了有力的证据。 |
| 6. | Through the improvement to the press craft for the heavy wall - head , avoids the production of its surface crack , guarantees the products ' quality , it offered the reference for the work in the future
摘要通过对厚壁封头压制工艺的改进，避免了其表面裂纹的产生，保证了产品质量，为今后的厚壁封头压制工作提供了参考依据。 |
| 7. | It is very important to study the correlation of cyclical strain on the side of hole with fatigue life cycle for understanding the material damage and micro - crack initiation , and for preventing macro - crack initiation and propagation
研究孔边循环应变与疲劳循环次数的相关性，对于研究材料损伤及微裂纹的产生，预防宏观裂纹的产生及扩展具有十分重要的意义。 |
| 8. | Abstract : this paper deals with the process methods to eliminating theextruded crazes by increasing the punch diameter and hole surface finish . the plans for extruding the deeper hole articles are feasible
文摘:研究了消除深孔薄壁挤压零件产生裂纹的措施，提出了用增大芯轴对孔的过盈量来提高金属塑性及内孔壁光洁度的方法，消除了裂纹的产生，制造出了使用性能较好的零件。 |
| 9. | The results at normal temperature have shown that klc of high polymer bonded explosive are very low comparing to metals and some high polymer materials , thus the ability of pbxs to resist crack expanding is very poor , and once some cracks occur inner a structural part of pbxs , the structure will fail very soon and easily . so in the process of machining and production , cracks should be avoided carefully in pbxs parts . some important laws about klc of the three typical pbxs above changes with temperature have been obtained as follows : a
对三种具有代表性的高聚物粘结炸药j1 、 j2和j3在常温下的平面应变断裂韧度进行了测试与研究，研究结果表明：相对于金属及某些高分子材料而言，高聚物粘结炸药的k _ ( ic )值很低，即高聚物粘结炸药的抗裂纹扩展能力是极差的，一旦炸药构件中产生了裂纹，炸药构件将极易破坏，因此，在高聚物粘结炸药构件的生产及加工过程中，应避免裂纹的产生。 |
| 10. | The dsf is a high strength for regarding polypropylene as raw material , with special craft making , fiber of low extension polypropylene , and can avaylably control the concrete , and fuck , temperature to contract the produce , improving of crack the concrete s anti the function , anti to pound at the ability , extension concrete the service life that product
丹强丝一种以聚丙烯为原料，以特殊工艺制造的高强度，低延伸性聚丙烯纤维，可以有效地控制混凝土塑性，干缩、温度收缩裂纹的产生，改善混凝土的抗渗性能，抗冲击能力，延长混凝土制品的使用寿命。 |
