焊接加熱 的英文怎麼說
中文拼音 [hànjiējiārè]
焊接加熱
英文
welding heating-
Specification for welded austenitic stainless steel feedwater heater tubes
奧氏體不銹鋼焊接給水加熱器管規范Standard specification for welded ferritic stainless steel feedwater heater tubes
焊接鐵素體不銹鋼給水加熱器管用標準規范Standard specification for welded austenitic stainless steel feedwater heater tubes
焊接的奧氏體不銹鋼給水加熱器管用標準規范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。Using the heat of welding to vapour water, cooling rates are lowered on the weld bead and heat - affected zone
利用焊接時的加熱使水汽化,不僅使焊道而且使熱影響區的冷卻速度減慢。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。After a nationwide restructuring of colleges and departments in 1952, the department was renamed as the department of machine manufacturing, comprising 5 disciplines manufacturing technology, foundry technology and equipment, forging and pressing technology end equipment, welding technology and equipment, and etall. graphy and heat treatmento in addition, on the basis of the original power machinery teaching group, the department of power machinery was set up, having 3 disciplines : thermal electr
1952年院系調整,更名為機械製造系,設機械製造工藝鑄造工藝及設備壓力加工工藝及設備焊接工藝及設備金相熱處理5個專業,並且由原動力組擴建成立了動力機械繫,正式設有熱力發電后改為鍋爐燃氣輪機汽車拖拉機3個專業。Steel tubes. welded tubes for heating panels encased in concrete. dimensions. technical delivery conditions
鋼管.用混凝土包覆的加熱板用焊接鋼管.尺寸.交貨技術條件The kind of welding equipment is suitable forwelding the qarts in appplications of heat exchanger in - out water pipe port of electical heater and hot pipe fittings simple operation low lost and good seam foring are the advan tages. it is an essential and special equipment in the profression of tube - making electrical and solar water heaters
該系列焊接設備適用於太陽能熱水器端蓋及水箱內受到影響上的進出水管、熱管接頭、電加熱器接頭及搪瓷水箱進出水管的自動化焊接,焊縫盛開有美觀、效率高、成本上升低,是制桶業、太陽能熱水器、電熱水器等行業必不可少的專用設備。Laminate knnen punktgenau zum schmelzen gebracht werden, ein folienverbund hergestellt oder montagekomponenten miteinander verschweit werden
將薄片加熱至接近熔點,生產出粘連薄片,或將裝配部件焊接在一起。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。By vacuum - electron - beam weld of ti3al and tc11 the technology of hot die forging, and then use different heat treatments, study the influence law of the different degree of deform, different heat treatments to the microstructure and properties
採用熱模鍛技術,通過對tac - 1b 、 tc11進行不同程度的變形、真空電子束焊接,然後採用不同的熱處理工藝,研究熱加工工藝對合金組織,性能的影響規律。Results show that the brittle fracture is mainly caused by hydrogen brittleness that results from the oxidation arid absorbing hydrogen of copper tube during braze welding
同時在加熱和冷卻時,由於異種材料的熱脹系數差別過大,產生的較大熱應力作用於已存在的裂紋,促使裂紋二次擴展,甚至使得晶粒脫落產生空洞,最終導致焊接接頭漏氣失效。Wdl is a certain steel which has lower sensitivity to weld cold crack and need not or a little warm - up before weld
國產wdl鋼種是一種對焊接冷裂紋敏感性低、焊接前不要預熱或稍加預熱而不產生焊接冷裂紋的鋼板。The saw surfacing test about tube - plank of jg600 - high - pressure heating apparatus
高壓加熱器管板堆焊焊接工藝試驗Series of high pressure thermocouples thermalresistances and thermowells, the thermocouple take the form of spring - loaded, of which protective tube and flange are forged of special alloy, as well the thermowell are formed with bar stock drilled. more further, theconnecting between thermowell and flange can be compressed with tapered thread and the groove at the lower end of flange can be welded with argon arc. these thermocouples are usually used in high equipments of hydrogen cracking device, cracker and vaporizer etc for pressure - resistant in over 30 mpa, operating temperature from 0 up to 800
系列高壓熱電偶阻及套管,熱電偶採用彈簧壓著式,保護套管和法蘭選用特殊合金材料鍛造,套管採用棒料整體鉆孔加工而成,與法蘭連接處以錐管螺紋配合併與法蘭下端渠槽處用氬弧焊接,耐壓30mpa ,使用溫度0800 ,可長期使用在加氫裂化裝置裂解裝置,氣化爐等高壓設備中。Welding. guidance on the measurement of preheating temperature, interpass temperature and preheat maintenance temperature
焊接.預熱溫度層間溫度和預加熱的維持溫度的測量導則Welding - guidance on the measurement of preheating temperature, interpass temperature and preheat maintenance temperature iso 13916 : 1996 ; german version en iso 13916 : 1996
焊接.預熱溫度層間溫度和預加熱維持溫度測量導則分享友人