熱焊結 的英文怎麼說
中文拼音 [rèhànjiē]
熱焊結
英文
pressure-welded junction-
The welding performance of homemade wear - resistant cast steel has been studied base on the weldability tests, the repair welding procedures of wean - resistant cast steel ( abrasion - plates ) have been made up, the results show that satisfying repair welding quality can be attained with such welding conditions as the low hydrogenous alkalescent welding rod, preheating and slow cooling, strictly maintaining the interbedded temperature of 250 ~ 300 and controlling welding technique
通過對其焊接性能的試驗研究,制定了該類鑄鋼件(磨耗板)的補焊工藝:低氫型堿性焊條,預熱與緩冷相結合的工藝措施,嚴格控制層間溫度( 250 ~ 300 )及焊接工藝規范,可獲得滿意的修復質量。Before repairing, basing on the actual working condition, concerning the weldability, stress and deformation issues, the scheme of the cold welding technology whose essential being gtaw, low temperature preheating, postweld hammer the welded seam was established
修理前,圍繞兼顧解決焊接性、應力和變形問題,結合實際施工條件制定了以手工鎢極氬弧焊、鎳基焊絲、焊前低溫預熱、焊后錘擊焊縫為要素的冷堆焊工藝。Medium frequency induction heating equipment are used in metal melting, temperature keeping, diathermic technology, metal - heat processing brass soldering, quenching, tempering and sintering
中頻感應加熱設備適用於各種金屬熔煉,保溫,透熱,金屬熱處理,釬焊,淬火回火,燒結,釬絲鋼絲等。The welding technology of francis turbine runners is optimized from the view of subsection welding and local heating by numerical simulation. the result shows that welding residual tensile stress appears in the weld and its area nearby, and peak stress appears in the dangerous area of blades after practising quondam welding technology ; welding residual tensile peak stress in the dangerous area of blades can be decreased by welding both ends earlier and then welding middle section later during subsection welding, and decreasing effect on welding residual stress of the subsection welding is related to the weld length of blade outlets and welding direction of each subsection ; decreasing effect on residual stress of the local heating is direct proportional to heating time, heating temperature, heating area, and inversely proportional to cooling area, and welding residual tensile peak stress in the dangerous area is decreasing trend earlier, and then increasing trend later with heated location increased
本文利用數值模擬手段對轉輪的焊接工藝從分段焊和局部加熱兩個方面進行了優化,結果表明:採用普通工藝焊接時,葉片焊后殘余拉應力出現在焊縫及其附近區域,並且在葉片出水邊的熔合線附近(危險區域)出現了峰值;在採用優化的分段焊時,先焊兩端后焊中間的方法可以降低葉片危險區域的焊接殘余拉應力峰值,降低效果與葉片出水邊焊段長度、焊縫各段的焊接方向有關;局部加熱法降低轉輪危險區域殘余應力的效果主要與加熱時間、加熱溫度以及加熱面積成正比,與冷卻面積成反比,並且危險區域的殘余應力隨加熱區域的增大呈先降低后升高的趨勢。To validate the formulated transition element for the calculation of the hot - spot stress and stress concentration factor in the welded components by experimental results, the stress concentration factor of the experimental welded specimens carried out in the research group is calculated by using the developed plane - transition element. the calculated stress concentration factor in the two types of tested welding components agrees well with that obtained from the experimental result. and the calculated result on the tendency of hot - spot stresses agrees well with that from the measured result
為了驗證文中構造的過渡單元模型用於分析焊接節點附近的應力集中問題的正確性和有效性,進一步又對過渡單元模型進行實驗結果驗證,採用平面過渡單元模型計算了本課題組進行的兩類焊接構件的應力集中系數,並與根據實測方法得到的應力集中系數進行了比較,計算結果與實驗測試得到的應力集中系數和相應的熱點應力變化趨勢比較吻合,為本文建立的過渡單元的實際應用提供了初步的基礎。And is it the same as under radiation heating ? do the special electric and magnetic fields produced by bpec accelerate atom diffusion ? understanding the above questions fully is a key to expose the mechanism of pecht
在脈沖大電流加工過程中原子是如何擴散的,與一般的加熱燒結、焊接是否一樣,脈沖大電流形成的特殊電場及磁場是否對原子的擴散有大的推動作用,弄清這些問題成為進一步揭示脈沖大電流熱加工機理的關鍵。In this paper, three unique models were designed to research atom diffusion at interface, contacting line and joining point under bpec heating and compare with it under radiation heating in order to find out if bpec speed atom diffusion. the first model was aimed to research atom diffusion at interface under bpec heating. experiment condition of bpec diffusion welding sheet cu and ni : direct diffusion welding, at a pressure of l0mpa, welded at 750 ~ 900, with heat rate of 200 ~ 400 / min for 10mm, on / off of 6 / l ~ 48 / 8, with die or not, vacuum of 6pa
本文設計出三種樣品預構件,研究脈沖大電流加熱條件下片狀材料、線狀材料和球形顆粒之間的原子擴散過程,弄清脈沖大電流加熱條件下原子擴散與一般燒結和焊接過程中原子擴散的區別,以證實特殊的電場和磁場是否對原子的擴散有推動作用,揭示脈沖大電流加熱條件下原子的擴散過程,探索脈沖大電流熱加工技術快速高效的原因。Pulse electric current heat treatment ( pecht ) developed by sodick, ltd., of japan, is a recently developed material processing method which consists of spark plasma sintering and welding, plasma activated sintering and welding, big pulse electric current ( bpec ) diffusion welding etc. the following are basic merits of pecht : rapid heating and cooling ; short sintering or welding time ; lowering sintering or welding temperature
脈沖電流熱加工( pulseelectriccurrentheattreatment ,比如燒結,焊接等)是九十年代發展起來的一種材料快速制備新技術,它包括放電等離子燒結與焊接、等離子活化燒結與焊接、脈沖大電流擴散焊接等。它具有升溫、降溫速度快、能在較低的溫度下燒結或焊接以及時間短的特點。The failure analysis of the heating jacket indicates that the austenitic stainless steel 316l is susceptible to stress corrosion cracking under the combined action of chloride environment and residual stresses induced by welding
結果表明:加熱夾套開裂的主要原因是316l奧氏體不銹鋼不耐氯化物腐性,焊縫有一定的缺陷和腐蝕介質存在,屬於一種典型的應力腐蝕失效形式。Abstract : the first china - made forge - welded hot wall hydrogenation reactor has safely operated for 10 years and the equipment is found to be in good condition of integrity after several inspections in service
文摘:我國自行研製的首臺國產化鍛焊結構熱壁加氫反應器已安全運行10年,此間經幾次在役檢驗,設備狀況完好。The thermoelectric power outputs of laminated structures with various thermoelectric materials have been mathematically optimized and experimentally measured. some conclusions have been drawn in the present work as follows : 1. the performance, microstructures and the failure mechanism of laminated bi2te3 / fesi2 prepared by dip coating using tin - based alloys as bridge materials have been investigated
本項研究獲得了以下主要成果: 1 、以sn基合金為焊接材料,採用熱浸焊技術制備了bi _ 2te _ 3 / fesi _ 2疊層熱電材料,並系統地分析研究了疊層熱電材料的性能,焊接過渡層的微觀組織結構以及過渡層在熱加工及模擬服役過程中的破壞機制。Cold - formed rectangular tube - steel column for architecture structure is formed by roll cold - winding forming process and hf longitudinal seam weld
建築結構用冷彎矩形鋼管是採用冷軋或熱軋鋼帶,經連續輥式冷彎及高頻直縫焊接生產形成的矩形鋼管。Hot - rolled atmospheric corrosion resisting steels for welded structure
焊接結構用耐大氣腐蝕熱軋鋼材Sf - gp - cyp - iii mainly used for surface quenching, welding, metal powder sintering tube seam annealing and metal parts heat penetrating
主要用於鋼鐵機械零件的表面淬火釬焊粉末金屬的燒結,鋼管焊縫的退火,以及金屬部件的透熱等。It possesses not only the self - learning ability and adaptability, but also the function of self - adjusting factors. based on fuzzy set, neural network theory, the fuzzy control model and fuzzy neural network control model of multi variable system are presented. based on the automatic core - welding line of shop floor control system in yangzhou radiator plant computer integrated manufacturing system ( ys - cims / sfcs ), the fuzzy logic theory was applied to the controlling device and established the main heating room fuzzy temperature controller and finally was put into practical use
本文採用了基於神經網路技術的智能pid控制策略,設計了一類具有自學習和自調整比例因子功能的神經元網路自適應pid控制器的結構及演算法;為解決結構不確定性的復雜多變量系統的控制,基於模糊集及模糊系統、神經網路理論,建立了多變量系統的模糊控制模型及模糊神經網路控制模型;針對揚州水箱廠計算機集成製造系統車間管理與控制系統( ys - cims sfcs )中的實際工程問題,設計和開發了散熱器芯子烘焊自動線主烘腔溫度模糊控制器,解決了生產中長期存在的老大難問題,提高了產品質量,降低了單產能耗。Sonic new ideas and views were proposed, such as regulation on general welding procedure qualification and its method of application, welding procedure qualification between heat exchange tube and tube sheet assessmented by the thickness of fillet weld, and so on
本文還首次提出一些新思路、新觀點,如母材、焊材分類細則以及標準以外材料分類要有分類報告佐證;通用的焊接工藝評定規定及使用方法;換熱管與管板的焊接工藝評定是評定角焊縫厚度;氣瓶焊接工藝評定是兩個類型評定的結合,也可以分別評定。The effect of heat treatment on structure and hardness of high alloy iron - based hardfacing layer metal was studied and the result obtained is of guiding significance for it ' s application
摘要研究了熱處理對高合金鐵基堆焊層組織和硬度的影響,所得結果對其應用有一定的指導意義。For more years, the welded members of steel structure are more popular than the rolled ones in china, but as is well known, the mechanical performance of welded members are effected by many factors : such as the material property of plates, the heat effect during welding process, the residual stress, the weld techniques and so on
一直以來我國使用的鋼結構構件以焊接為主,軋制的較少。眾所周知,焊接構件的力學性能將受諸多因素的影響,如焊接板材的材性是否一樣、焊接產生的熱影響以及焊接殘余應力和焊接工藝等。Characteristic values for welded thermoplastics constructions - determination of allowable stresses and moduli for design of thermoplastics equipment
焊接熱塑結構特徵值.熱塑設備的設計模和允許應力測定Weldable structural steels - hot finished structural hollow sections in weather resistant steels - specification
可焊結構鋼.抗風化鋼制熱加工結構鋼空心型材.規范分享友人