5 . after high temperature annealing the hardness of the composites did not reduced obviously until 973k , this temperature greatly exceeds that of pure copper ( after cold machining , the temperature is 423k ) 本文制备的材料经高温退火后的硬度明显降低温度点为973k ，大大超过了纯铜（冷加工态）的423k ，而且热稳定性能较好。
Our company has all kinds of advanced optical process equipments and testing equipments like double sided precision polishing machine , large size internal cutting machine , many knives cutting machine , spectro photometry instrument and vacuum coating machine 本公司拥有双面研磨抛光机、大规格内圆切割机、多刀切割机、分光光度仪、真空镀膜机等各类先进的玻璃冷加工设备及检测设备。
The technology of optical glass processing , the types of diamond tools , the latest manufacturing technique of diamond tools , and development tendency of diamond tools about optical glass processing in future were expounded 著重根据光学玻璃冷加工的工艺，对金刚石制品的种类及合理选择；各类金刚石制品的最新制造技术；金刚石制品在使用过程中易出现的问题；以及对未来该领域金刚石制品的发展动态等方面进行了阐述。
In our production practice , the principle and method of value engineering were applied to analysis and improvement of maufacturing engineering in order to reduce the cost , the production period and ease the insufficiency of cold working equipment . as a result , better economic benefits were obtained 在实际生产中，应用价值工程原理与方法分析和改进制造工艺，降低成本，缩短了生产周期，有效缓解了冷加工设备不足的局面，取得较好的经济效益。
Technique of " a steel by line heating and cooling " have several characteristics such as full of techniques and difficulties etc , it is based on experience of experienced workers and use the fire heat steel plates in predetermined lines calculated by expert system , then cool them down by water , so the difference between forces of extention and contraction , the steel plates will curve to their desired shape 水火弯板是造船生产中技术性强、难度大，具有很强特色的一种经验性钢板曲面成形的热冷加工工艺方法。这个项目就是和大连造船新厂合作的“大型复杂曲面钢板水火加工智能机器人” 。
Zircaloy - 4 sheet , which was cold - worked followed by recrystallization annealing , exhibits longer lcf life in the rolling direction than that in the transverse direction , and the fact that difference in lcf life between both directions becomes larger as the range of plastic strain becomes lower can be attributed to the texture effect , p - solution treatment deteriorates the alloy ' s lcf property because the treatment lowers the average value of alloy ' s schmid factors , and the subsequent annealing - treatment in a - phase range has a impact on the lcf properties , i . e . the subsequent annealing - treatment at 500 ? for 1 . 5h results in better property than that at 750 for 1 . 5h , which comes mainly from the fact that the alloy annealled at 500 for 1 . 5h has lower amount of the precipitate particles than the alloy annealled at 750 for 1 . 5h 对于冷加工后经再结晶退火处理的zr - 4合金，轧制方向的低周疲劳寿命比横向要大。随着_ p的降低，两个方向的低周疲劳寿命的差别相应增加，这是由于合金中存在织构的缘故。冷加工后经再结晶退火处理的zr - 4合金在固溶处理后，抗疲劳性能明显降低，这主要是由于固溶处理降低了合金的schmid因子；固溶处理后在相区的退火对疲劳性能有影响，即500 1 . 5h退火的抗疲劳性能要优于750 1 . 5h退火，这主要与500 1 . 5h退火的合金中沉淀相粒子的数量较少有关。
Xin xing liang electric - optics of jilin province , co . , ltd . it has evolved into a unique company , specializing in the manufacture of cylindrical lens etc . we employ some experienced engineers and technical personnel from chang chun institute of optics , fine mechanics and physics , which is part of the chinese academy of science 柱面镜，光学镜片，光学，镜片，棱镜，窗口片，反射镜，透镜，球面镜，滤光片，消色差吉林省新星亮光电有限公司原长春市朝阳区升光学镜片加工部是一家专门从事光学冷加工的实体企业。
The alloys , which were cold - worked followed by recrystallization annealing , display cyclic softening in the range of low strain because the cyclic stress - strain curve lies below the monotonic stress - strain curve , and show cyclic hardening in the range of high strain because the cyclic stress - strain curve lies above the monotonic stress - strain curve 在低应变范围，冷加工后经再结晶退火处理的错合金的循环应力一应变曲线位于单调拉伸曲线的下方，表现为循环软化;在高应变范围则位于单调拉伸曲线的上方，表现为循环硬化。
Middle strength ( 1370mpa ) spiral ribs steel wires is a new type of high strength and good ductility and anchoring strength rolled steel , which is the ideal steel for the high effective pre - stressed reinforced concrete hollow slab . the slab with it has lower price than the traditional ones as well better mechanical property 中强( dw1370 )螺旋肋钢丝是一种强度高、延性好、锚固性能优良的新型材料，是高效预应力空心板的理想的受力钢筋，以这种钢筋为配筋的预应力空心板不仅具有较好的力学性能，满足现代建筑市场对预应力空心板的要求，而且其价格比低于传统的冷加工钢筋。
Some of them are equally matched to similar german products . combining advanced large - scale digitally controlled machines and special cold processing equipments with advanced hot processing , casting , welding and many special key technologies , zhenxing company enjoys much more advantages in manufacture than others in china 3本公司不仅拥有一批先进的大型数控机床和专用的冷加工设备，而且同时还具备热处理铸造焊接等多种加工手段，掌握许多关键工艺的专有技术，在制造加工能力方面，本公司具有较大的优势。
