成型

Fracture is caused by sheet's tensile instability, Hill's totalized instability theories and Swift's diffuse instability theories which based on continuous mechanics are applied to isotropic blank; Marciniak and Kuczynski's theories are applied to orthotropic blank, which introduced thickness imperfections normal to the principal stress and strain direction as a groove pre-existing defects in the material. The stability of each part of blank at each moment is described by numerical method, and the results are shown by computer simulation, thus the fracture in sheet forming can be predicted preciously.

拉裂是由于拉伸失稳引起的，以连续体力学为基础的Hill集中性失稳理论和Swift分散性失稳理论应用到各向同性板料进行失稳判定；将Marciniak和Kuczynski的凹槽损伤失稳理论应用到正交各向异性板料拉伸失稳判定，对板料各处在成型过程中不同时刻的稳定性进行数值化描述，并运用计算机仿真技术进行直观的表现，可以准确地预测板料成型中可能出现的拉裂现象。

An analysis on the positive and negative stressed deformation of steel coil in pipe-making of spiral-welded pipe during uncoiling.

一、前 扭少曰螺旋埋弧焊钢管的制作过程是，由钢管厂购进的钢卷送人制管机生产线，按工艺技术要求切头、切尾和切边后送人成型机组成型、焊接，制成钢管。

XLB-Y series rubbers platen vulcanizing machine is suitable for vulcanizing -molding all kinds of rubber mold press products .

XLB-Y系列橡胶平板硫化机适用于各种橡胶模压制品的硫化成型，也可用于其它热固类产品的压制成型。

Nonlinear finite element method was used to analyze the distribution of the stress and strain on each part of the angle steel during the cold roll forming process, and the deformation pattern of metal during the cold roll forming process was revealed.

采用非线性有限元法对冷弯成型过程中角钢各部位的应力、应变分布情况进行分析，并揭示了角钢在成型过程中金属的变形规律。

For resolving the compromising issue of traditional uniform slicing, adaptive slicing method in Pro/E environment was researched, an adaptive direct slicing algorithm was present that bases on the area change and normal vector of slicing sections.

在RP中，实体模型的描述和分层片堆积成型的阶梯效应是影响快速成形零件的成型精度的主要因素。

According to the characteristics of the fuse industry and the research condition, We applied ZPrinter310 system to produce the fuze prototypes and used these prototypes to help design in the project argumentation phase, got the final project;Then we applied AFS-320 rapid prototyping system to produce the noumenon, analyzed the noumenon's precision、surface quality and performance of material mechanics in detail,based on these analytic results,we considered to use the noumenon in the fuze local performance test and some laboratory experimentations;At last we discussed how to combine the rapid tooling and precision foundry to produce batch of samples, we can apply these samples in the fuze system and ball cartridge experimentation.

本论文将快速成型技术贯穿在引信研制周期中的各个阶段，根据引信研制的特点及现有的研究条件，应用基于3DP工艺的ZPrinter310系统制造出了引信零件原型，并将原型应用于方案设计论证阶段辅助引信设计，得出了零件的最终设计方案；应用基于SLS工艺的AFS-320快速成型系统制造出了引信本体，对本体的尺寸精度、表面质量及材料的力学性能作了详细的分析，根据综合分析结果，考虑将本体直接应用于引信研制阶段的局部性能试验及部分实验室试验中；最后还论述了如何结合快速模具及精密铸造技术小批量制造引信零件应用于引信研制阶段的实验室试验及实弹试验中。

Companies with advanced technology, perfect management system, better quality products to serve the broad masses of customers, company's existing professional and technical personnel 20 people (including 5 senior engineers, engineers, 8), 120 person staff, the main products : Blister Forming whole plant export equipment, hot-pressing molding the whole plant equipment, cones, plastic box, slice, such as whole plant equipment.

公司以先进的技术、完善的管理体系，精益求精的优质产品服务于广大客户，公司现有专业技术人员二十人（其中高级工程师5人，工程师8人），职员一百二十人，主要产品：吸塑成型整厂输出设备、热压成型整厂设备、圆筒、胶盒、切片等整厂设备。

First, pre-heating the preform; then stretching it with stretch-rod meanwhile blowing it so that the preform becomes the real shape of mold of the bottle; finally, cooling the product and taking it out mold.

本课题所论述的PP瓶的拉伸吹塑成型是采用二步法，即成型好的瓶坯先预热，后用拉伸杆拉伸型坯并通入压缩空气吹胀型坯使之贴紧模具型腔，把模腔的形状与尺寸赋予制品，然后冷却最后脱模。

The large-tonnage press is adopted in brick press. The forming pressure is up to 1280T, the forming pressure of product can reach 27Mpa.

压砖机采用高吨位压力机，成型压力达到1280吨，制品成型压强达27Mpa。

The liner-forming technologies in solid rocket motor such as centrifugation molding,brush coating,pull coating,spray coating,and so on have been developed continuously at home.

我国固体火箭发动机衬层成型工艺如离心成型、刷涂、拉涂、喷涂等工艺不断向前发展。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。