College of Guandong Business, Guanzhou 510320, China）Abstract: Since large-scale vertical quench furnace is voluminous, whose working condition is a typically complex process with distributed parameter, nonlinear, multi-inputs/multi-outputs, close coupled variables, etc, dynamically decoupling control algorithm of temperature distributed parameter system in the furnace was presented, by which the whole system was decoupled to several subsystems and the implementation of controller was simplified. With finite difference approximation, the space and time step size was solved to ensure the convergency of finite difference approximation. After decoupling, the subsystems were controlled with self-learning PID control algorithm. The results show that the temperature control precision and homogeneity are improved; the overshoot and process in temperature rising period are reduced simultaneity.

摘 要：針對大型立式淬火爐體積龐大，工況復(fù)雜久久国产色AV免，爐內(nèi)溫度分布呈本征非均勻性国产在线观看精品第一页，具有多輸入/多輸出、非線性a级黄色视频A、強耦合等特性国产亚洲精品无码专区，難以實現(xiàn)爐內(nèi)溫度高精度高均勻性控制目標等問題，提出一種溫度分布參數(shù)系統(tǒng)動態(tài)解耦控制算法18岁网站小视频，其原理是：采用有限維逼近方法將對象解耦為多個獨立的子系統(tǒng)高大丰满40岁东北少妇，簡化控制器的實現(xiàn)過程；通過分析有限維逼近方法的收斂性国产AV妓女影院妓女，獲得保證收斂性的空間和時間步長應(yīng)滿足的條件国产一区二区电影在线观看；解耦后的子系統(tǒng)采用自學習PID控制算法，實現(xiàn)爐內(nèi)溫度高精度和高均勻性控制以及升溫過程的快速性和小超調(diào)oumeiavshiping。

In order to analyze and investigate the effect of heat treatment on delayed fracture resistance of 30MnSi PC steel bar s FIP test was adopted.

對30MnSi PC鋼棒進行了淬火回火處理91在线免费观看视频，分析探討了熱處理工藝對高強度鋼耐延遲斷裂性能的影響。

The formation and distribation rule and measuring method of hardening residual stress of heavy forging had been studied.

研究了大鍛件淬火殘余應(yīng)力的形成国产日韩精品情侣AV、分布規(guī)律及測量方法国产乱理伦片在线观看。

Driven by a four-stroke engine, this Polaris ATV has enough power to quench your kid's thirst for speed.

驅(qū)動由四沖程發(fā)動機，這北極星亞視有足夠的權(quán)力日韩成熟熟女精品自拍视频，淬火你的孩子的渴望速度久久综合激情综合五月丁香。

The annealing experiments with different processes and the saw cutting life test on machine hacksaw blade s made of W9Mo3Cr4V HHS are carried out.

對W9Mo3Cr4V高速鋼機用鋸條進行了退火工藝試驗和鋸切壽命試驗，試驗結(jié)果表明欧美一级片电影在线观看，不同退火工藝與鋸條淬火回火硬度及鋸切壽命之間不存在明顯對應(yīng)關(guān)系18禁网站在线永久免费观看，但高溫長時間退火對鋸切壽命有不利影響。

This kind of steel becomes very hard and brittle when it is hardened.

這種鋼淬火后就變得很硬很脆色哟最新网站入口。

Quenching is the most important way to harden the steel, so it is used widely in mechanical production.

淬火是鋼的最重要的強化方法久久久久久久久久精品一，在機械生產(chǎn)中廣泛應(yīng)用。

Can we control the hardness of the steel when it is harden ?

我們能夠在鋼淬火時控制它的硬度嗎日韩精品更新影院在线播放视频？

Their work is to harden steel .

他們的工作就是使鋼淬火黄色视频看网站。

Hardening layer depth is an important process requirements, it has great influence on the quality of products.

淬火層的深度是一個重要的工藝要求，它對產(chǎn)品的質(zhì)量有很大影響在线a片大全。