一次加工

通过对炼油生产的一次加工过程进行分析，建立了系统的赋时着色Petri网模型。

After analyzing the processes of crude oil operations , by using colored and timed Petri net , a hybrid Petri net model is developed to describe the processes .

基于eM-plant的炼油一次加工过程建模与仿真

Modeling and Simulation in First Process of Oil Refining Based on EM-plant

原油一次加工量达到2.2亿吨，同比增长5.7%，所有石油产品的产量均有所上升；

Crude oil refining rose by 5.7 % to 220 million tons , and output of all oil products rose .

全深度方法：这种方法除了一次加工就能去除磨削余量外其它与横向方法相同。

The full-depth method , which is similar to the transverse method except that the grinding allowance is removed in a single pass .

提出了将灵芝孢子破壁和有效成分提取结合起来，经过一次加工处理就能同时完成灵芝孢子的破壁和提取的破壁提取法。

The breaking-extracting method was proposed by which the ganoderma lucidum spores can be broken and its components can be extracted in one step .

本机可以完成异形铁艺工件的一次加工成形，铁艺工件一致性好，可实现批量生产，工作效率高。

The machine can finish the moulding and processing of heteromorphosis iron craftwork with good consistency , and can process parts in batches and high efficiency .

第三，采用减压深拔技术可以提高原油一次加工总的拔出率，拓宽催化裂化装置原料，提高全厂轻油收率。

Thirdly , the deep vacuum technology can improve the yields of crude oil cut and broaden the FCCU feed then improve the light oil yields .

设计独特，造型美观，便于固定，便于使用；整体一次加工成型，加工成本低且速度快。

The utility model has the advantages of unique design , shapely configuration , convenient fixing , convenient operation , integral machine shaping in one step , lower machining cost and high speed .

车间内传统的固定单元生产模式以及仅靠经验来管理调度的模式已经不能应对实际车间中随机事件的发生，不能实现对每一次加工任务的最佳配置。

And traditional fixed element manufacturing mode in job shop and management scheduling mode only with experience could not cope with the happening of random events , and could not realize the best configuration for each manufacturing task .

PLC控制系统通过界面设定加工参数一次完成加工。

PLC control system Settings interface processing parameters through a complete processing .

NURBS在微机控制球面轴承内套双沟一次磨削加工中的应用

The application of NURBS to once-through grinding for double raceways of spherical inner ring

深孔油缸的一次成型加工方法

Forming Manufacturing on Cylinders with Deep Holes in One Work Feed

一次过加工技术的发展及应用

The Development and Application of One Pass Machining Technology

为使已完成工件成形，有时需要对坯料进行一次引伸加工，但却只是一次精细加工而已。

The shape of the finished article sometimes necessitates the passing of the Blank through an actual drawing process , though this may be for a shallow form only .

为了减轻工作量，节约能源，降低成本，本研究采用了拉深、落料、冲孔复合模一次完成加工。

In order to reduce the work load , save the energy , reduce the cost , he used the drawing , fell the material , the punch holes completed at one time .

本课题在分析快丝机一次切割加工特点的基础上，研制了一种全新的间隙状态模糊控制系统，实验证明此系统能满足多次切割的要求。

On the basis of analyzing of the characteristics of one time cutting on that machine , a new fuzzy control system is developed . It is proved by the experiments that the new system can meet the requirements of multi cuttings .

使用本刀具加工木质圆弧槽，可一次走刀加工成型，生产效率高。

By using the wood cutting tool for processing , a wooden arc slot can be processed and formed by feeding once with high production efficiency .

介绍了单炼沙特阿拉伯轻质含硫原油时相应的一、二次加工装置的生产方案，物料平衡、产品质量及存在的问题。

The processing scheme , material balance and product qualities of the primary and secondary processing units for completely refining the Saudi Arabian sour crude are introduced .

摘要催化裂化是炼油工业中最重要的一种二次加工工艺，在炼油工业生产中占有重要的地位。

The catalytic cracking is the most important kind of secondary processing technology in oil refining industry , occupies an important position in the industrial production of oil refining .

曲轴部分采用的是锻造后，再由加工中心一次装夹加工完成，较直轴和偏心轮一起精密铸造的方法精度差，刚性不好。

The crankshaft is used after forging , machining center by once clamping completed processing , precision method than the straight shaft and the eccentric wheel with precision casting is bad , not good rigidity .

中碳结构钢件的锻造成形与锻后调质一次完成的热加工新技术

A new technique on finishing the forging and q & t forged of medium carbon constructional steel by one step

该加工方式较传统加工方法节省能源，也提供了一条用二次加工装置直接加工重质原油的新途径。

Since crude distillation was omitted in this processing route , the energy consumption was less as compared with the conventional processing route , furthermore , a new route of direct processing heavy crude by secondary processing unit was proposed .

介绍一种周期增量圆弧数控插补方法，该方法能够自动实现跨象限圆弧加工，能够一次加工整圆。

A kind of circular interpolation method on periodic increment is introduced . The Whole circle can be automatically processed at a the .

根据轮辋滚压一次成形工艺方案，使用DEFORM-3D软件对轮辋滚压过程进行数值仿真，研究合理的轮辋一次滚压成形的加工参数。

Based on the proposed scheme , using DEFORM-3D software on the rim of the wheel rolling numerical simulation , discuss reasonable rim a roll forming processing parameters .