The approximation analysis result of band dipole model is obtained on the basis of the theory of mfl. the electromagnetic distribution feature of the defect in the steel panel is studied by means of simulation. the leakage magnetic distribution of the two defects and four defects plural and the defects in the column differently in the width are also assayed. conclusions that factors affecting flaw magnetic leakage to the panel also affect the column and magnetic leakage bx should be the feature of the flaw identification to several flaws are drawn
在對漏磁檢測原理進行詳細
介紹的基礎上,得出了帶偶極子模型的近似解析解,並以有限元數值模擬分析為主要手段,以
鋼板上缺陷為對象,分析了各因素對缺陷漏磁場產生影響的不同規律,同時模擬分析了板上平行的兩條裂紋,四條裂紋以及柱體上寬度不同時的裂紋的漏磁場分佈特徵,得出結論:影響板上缺陷漏磁場的諸因素會對柱體上缺陷漏磁場產生同樣的影響;對于多條裂紋,宜用漏磁分量bx作為缺陷識別的特徵量。
Abstract : the paper shows the design concept, operation onsite, problemscaused and relative solutions to solve the problems for the automatic carburetting device in electric steelmaking in xi ning steel works
文摘:闡述了西寧
鋼鐵廠電爐煉
鋼自動增碳設備的設計思想,
介紹了現場使用情況、出現的問題及具體解決辦法。
The primary parts adopt steel pad f46, the pumpbody strength is high, it can resist all cauterization of strong acid and strong alkali
的強腐蝕
介質主要部件採用
鋼襯f46 ,泵體強度高,能耐所有強酸強堿的腐蝕。
High quality stainless pipe valve and seamless welded joint can ensure absolutely air conurbation and durability of pipe system
高品質不銹
鋼的管道閥門,無縫焊接的連
介面,以保證絕對的氣體密閉性和管道系統的耐用性。
Third, on the base of expatiating on experimental research method and theoretical research method of joints, the paper points out two kinds of valid methods, which are used to analyze the tube joints stress of dendriform structure by making use of semi - analytical method and inelastic large deflection finite element analysis method, confirms to apply the evaporative pattern casting process as the facture method of dendriform structure cast joints, and detailed dissertates the casting theory, casting process, generation cause and prevention measure of casting flaws, heat treatment method and inspection standard about cast steel joints
然後在闡述樹狀結構節點實驗研究方法和理論研究方法的基礎上,提出了利用半解析法和彈塑性大撓度有限元法兩種有效分析樹狀結構管節點應力的方法,並給出兩種方法的詳細表達式及它們各自的優缺點。通過對鑄
鋼件常見製作方法的
介紹,確定了採用消失模法作為樹狀結構鑄
鋼節點的製作方法,並詳細論述了用消失模法製作鑄
鋼節點的鑄造原理、鑄造工藝、鑄造缺陷產生的原因及防治措施、鑄
鋼節點的熱處理方法以及檢驗標準。
Abstract : by using engineering example this paper briefly introduces the application and constrction method of ferroconcrete filling pile in the transformation of old buildings
文摘:以工程實例簡要
介紹了
鋼筋砼灌注樁在舊樓改造中的應用及具體施工方法。
Ruichi " brandmagnetic pump is mainly made up of pumpbody, gears, magnetic combined bearing equiptment isolation cover, motor and so on. gear wheels joined with the inner magnetic steel are fixed in a hermetically sealed chamber which is made up of pumpbody and isolation cover. the motor powers the outer magnetic steel, the outer magnetic steel power the inner steel. gear sheels are made to try turn. thus dynamic hermetis seal is replaced by a static hermetic seal to get the result of importing medium wihtout leakages
「瑞馳牌」磁力泵泵體主件是由驅動和從動永磁場
鋼杯組成磁性聯軸節外磁
鋼和電動機相聯為主動件內磁
鋼和葉輪相聯為被動件當電機啟動后通過磁力藕合驅動葉輪同步工作泵的結構要點以靜密封取代動密封使泵的過流部件完全處於密封狀態從而保證了
介質和外界隔絕徹底解決了離心泵機械密封一直解決不了的跑、冒、滴、漏之弊病。
Simple introduction of ultrathin hot strip rolling line of tangshan iron and steel co., ltd
唐
鋼超薄熱軋帶
鋼生產線簡
介
In this paper, the reason and process of hot tear forming for the investment steel castings are analysed, the technological method of preventing hot tear is discussed, and the designing method of the self - cut - gate for shifting hot tear is introduced
分析了熔模鑄
鋼件熱裂產生的原因和過程,論述了防止熱裂的工藝措施,並
介紹了自割內澆口轉移熱裂及其設計方法。
The consolidating wave speed means the speed at which elastic stress wave transmits throughout reinforced concrete, and it is intervenient the inherent wave speed of steel and of the concrete. moreover, the consolidating wave speed inherent in the material of the reinforcing steel bar and the concrete, and it relates to the cling strength of steel bar and the concrete
固結波速是指彈性應力波通過
鋼筋-混凝土體系傳播時的速度,通過理論分析得知固結波速的大小
介於
鋼筋和混凝土中彈性應力波速之間,由
鋼筋與混凝土二者的材質特性決定,與二者的粘結強度密切相關。
It influences the miaow thiazole quinoline to lose slowly that the experiment is drawn the pharmaceutical loses slowly the factor of performance has temperature mainly, density, the membrane time in advance, and design many group ' s simulation systems for different influence of these three factors, is it is it should lose pharmaceutical to lose pharmaceutical slowly one positive pole type, lose performance is it is it form space location hinder after the membrane to absorb to come from mainly slowly slowly to appear to prove, thus isolated the carbon steel base body and corrode the medium
實驗得出影響咪唑啉緩蝕劑緩蝕性能的因素主要有溫度,濃度,預膜時間,並針對這三個因素的不同影響設計了多組模擬體系,驗證出該緩蝕劑是一種陽極型的緩蝕劑,緩蝕性能主要來自於吸附成膜后形成空間位阻,從而隔離了碳
鋼基體和腐蝕
介質。
When my husband and i celebrated our 38th wedding anniversary at our favorite restaurant, lenny, the piano player, asked, “ how did you do it
電子書簡
介當我和丈夫在我們最喜歡的飯館慶祝結婚38周年紀念日時,那個彈
鋼琴的萊尼過來問道: 「你們是怎麼過過來的? 」
This paper summarizes the general characteristic and design principle of the continuous cold - formed steel purlins of the z - section and introduces domestic and overseas development of the continuous cold - formed steel purlin of the z - section, analyzes a variety of the factors effecting the continuous cold - formed steel purlin of the z - section
本文簡單
介紹了冷彎z型
鋼檁條的一些特點和冷彎z型連續
鋼檁條的設計原則以及國內、外關于冷彎z型連續
鋼檁條研究動態,分析了影響冷彎z型連續
鋼檁條承載力的各種因素。
It is designed according to electrical stove or microwave oven request. heating pipe adopts high temperature resistance mgo powder as the insulation medium and the stainless steel case is passed oxidation deal through the advanced web band protection oven 1050c in order to become the a special oxidation layer and improve the high temperature oxidation and bittern corrosive performance of the heating pipe. the heating tube has high power density and strong heat radion. this product with good safe performance can work normally after 3000hrs life test
加熱管選用耐高溫氧化鎂作絕緣
介質,不銹
鋼外殼經過先進的網帶氣體保護爐1050的氧化處理,形成一種特殊的氧化層,提高電熱管的抗高溫氧化及鹽鹵的腐蝕性能。電熱管的功率密度較高,熱輻射能力強。產品經長達3000h的壽命試驗后,仍能正常工作,安全性能好。
The article deals with the main improvements in relining design of no. 1 bf at baosteel. these measurements include : bf lining, cooling structure, cooling water system, monitoring of bf lining and auxiliary equipment for increasing campaign from 8 years up to 12 years, even 15 years
介紹了寶
鋼1號高爐改造性大修設計的主要內容,著重論述了高爐一代爐役設計壽命由8年提高到12年並爭取達到15年時在爐體各部位結構設計中,如爐體耐材砌築、冷卻結構、冷卻水系統、爐體檢測及爐體輔助設備等方面採取的一些改進措施。
Copper connections are standard. steel is available for ammonia use
標準配置是銅管介面,如果要使用在氨系統上可以提供鋼介面產品