氧探头微机控制技术能有效地控制气体渗碳过程。
Microcomputerised oxygen probe technique is effective in controlling the carburizing process.
气体渗碳数学模型是渗碳过程中各种物理、化学现象的数学描述。
The mathematical model of gas carburization is mathematical description of all kinds of physical and chemical phenomena in the process of carburization .
本次毕业设计的题目为：两级计算机实现的渗碳过程集散控制系统。
The topic of this graduation project is: Two grades computer Carburization process Distributed Control System.
主要介绍井式渗碳炉渗碳过程中单片机控制系统的构成和设计要点。
This paper mainly introduces the construction and designing essentials of microcontroller control system in cementite process of pit cementite furnace.
在渗碳过程中，稀土元素对介质的分解，吸收和碳原子的扩散都起到了促进作用。
In the carburizing process, rare earth elements could promote the decomposition and absorption of medium and the diffusion of carbon atom.
过去那种认为高炉生铁含碳量已经达到饱和并与铁水渗碳过程无关的看法是不正确的。
It is wrong to think that the content of iron has already been saturated and is not telated to the process of carburization.
运用线性偏微分方程的可迭加性质所求得的碳浓度分布函数能够描述多段法渗碳过程的物理本质。
The carbon concentration distribution function derived from partial linear differential equation by applying the feasibility of repeat adding can describe the innate character of multi stage ca...
碳势控制，采用了增量式PID算式，渗碳软件既能管理整个渗碳过程，又具有报警及安全保护功能。
Using the incremental PID formula in the carbon potential control, the carburizing software can manage the whole carburizing process, and can still give the alarm for safety protection.
由此可加深理解渗碳过程的物理本质，优化渗碳工艺技术参数，并可作为评定数值解误差的最好依据。
The process parameters can be optimized and the errors can be evaluated for numerical solutions more precisely.
该文建立了多段法渗碳的一维数学模型，用此数学模型能够清晰地描述渗碳过程中每一时段的物理行为。
The mathematic model of one dimensional multi stage carburation is obtained and it can describe every physical phenomenon in carburation.
目前最佳渗碳工艺方法是在整个渗碳过程中对碳势进行台阶式控制，这一过程可以看成是一个多段渗碳过程。
The better technological process now is the step control of carbon potential during carburizing. It can be considered a multi stage carburation.
回火作业可以描述为渗碳体析出和凝聚或聚结的过程。
The tempering operation may be described as one of precipitation and agglomeration or coalescence of cementite.
齿轮渗碳热处理工艺是齿轮加工全过程的重要组成部分。
Gearing heat treatment program technics is important part of gearing machining process.
介绍了渗碳淬火零件热处理畸变的原因，分析了热处理内应力的形成过程。
The present paper analyzed the reasons of heat treatment distortion of carburizing and hardening components and the formation process of the internal stress.
在回火过程中，贝氏体中的奥氏体以扩散转变方式分解为铁素体和渗碳体。
During the tempering process, the austenite in bainite decomposed into ferrite and cementite by diffusion transformation.
渗碳工艺过程的执行，直接关系到热处理产品的质量。
The processing of carburization affects the quality of products in heat treatment directly.
炉管服役过程的时效与渗碳导致大量碳化物的析出，其数量、大小与形态取决于服役温度和时间。
Aging and carburization during the service produced precipitation of carbides, the amount, size and forms of which depended on the service time and working temperature.
研究了20钢和T12钢在离子轰击条件下的渗碳和脱碳过程。
This paper deals with the surface apparent process of plasma carburizing. The steel 20 and T12 were used.
改变炉压可迅速排除炉膛内氧、水蒸气等有害气体，可加速渗碳、渗氮过程。
By altering the furnace pressure rapidly, baneful gases, such as oxygen and vapour, could be eliminated from the chamber. Therefore, cementite and nitriding processes are accelerated.
主要探讨了汽车后桥被动锥齿轮在渗碳热处理过程中出现的变形问题，并分析了缺陷产生的原因，提出相应的解决对策。
The gear distortion of automobile rear bridge during carburizing heat treatment was discussed, the fault reason was analysed and relevant measure was put forward.
介绍渗碳、氨化过程工艺参数的微机控制系统以及热处理工艺考核试验。
Carburizing and nitriding processing microcomputer control system is introduced, and heat treating technological tests are presented.
共析分解是个自组织过程，具有铁素体和渗碳体互为领先相的整合机制。
The eutectoid decomposition is a self organization process, which is characterized by the integrated mechanism that ferrite and cementite acted as prevenient phase alternatively.
外加磁场改变了渗碳体片层的分叉形成过程，随磁通密度的增加，珠光体晶粒内部的渗碳体片层趋向于平行排列。
The bifurcation process of cementite flake is changed by magnetic field. The cementite flakes in pearlite grains tend to be parallel with the increase of magnetic flux density.
在解决该问题的过程中，提出了一个临界冷却速度的概念，对钢的渗碳及其后热处理有重要的指导意。
A concept of critical cooling rate given in this paper for carburizing and post heat treatment of steel.
研究了渗碳热处理过程中淬火冷却和回火状况以及磨削加工对渗碳淬火汽车齿轮表面残余应力的影响。
The influences of carburizing heat treatment process and grinding process on surface residual stress of automobile gears are studied.
硬质合金玻璃刀毛坯在生产过程中存在成型难，烧结后易出现脱碳、 渗碳以及粘舟等问题，合格率低。
There are some problems in manufacturing of Semi-finished Product of Cemented Carbide Glass Cutter. It is difficult to shaping and there are always carbon elimination and carburize after sintered.
硬质合金玻璃刀毛坯在生产过程中存在成型难，烧结后易出现脱碳、 渗碳以及粘舟等问题，合格率低。
There are some problems in manufacturing of Semi-finished Product of Cemented Carbide Glass Cutter. It is difficult to shaping and there are always carbon elimination and carburize after sintered.
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