焊合溫度 的英文怎麼說
中文拼音 [hàngěwēndù]
焊合溫度
英文
welding on temperature-
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。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 avoid manual labor of chiseling - grossness, in the area of second - stage concrete construction, permanently non - removed metal molding boards nets are used as molding boards of first - stage concrete. substitution joints of reinforcing steel bars for traditional electric welding and usage of equipments for joints of reinforcing steel bars efficiently improve strength of junctions and rate of connecting reinforcing steel bars, and safety of construction and stability of quality, and greatly reduce cost. it ' s possible that three gorges project become top - ranking project in the world by study on systems engineering of high - strength concrete construction
混凝土縫面處理採用高壓水流沖毛技術,大大提高了施工工效,減少了倉面污染;模板工程大量採用定型鋼模板施工技術,提高了壩體混凝土成型質量和工程進度;在二期混凝土施工區域,為免除人工鑿毛勞動強度,採用永久性免拆金屬模板網作為一期混凝土模板;鋼筋連接改進傳統的電焊連接方式,採用大量採用鋼筋接頭機械連接技術,有效提高了接頭強度和鋼筋連接速度,施工安全性大大加強,質量穩定性有效提高,經濟成本大大降低;三峽二期工程持續高強度混凝土施工系統工程的研究,使三峽工程成為名符其實的「世界一流工程」成為可能;三峽二期工程混凝土溫控綜合技術的應用,有效降低了壩體混凝土溫度的產生;混凝土表面處理及裂縫處理技術的應用,提高了建築物的整體性和耐久性。The analysis results indicate that the correlative influence factors to the technological capabilities of electronic solders include the composition and purity and chemical uniformity of solder alloy, the composition and properties of mother materials and their clean level on the surface, the surface tension of liquid state solders, the temperature and atmosphere in soldering and the activity of flux, the chemical composition and structure and properties of the surface film of melting solders, and so on
分析表明:相關的影響因素主要包括合金的組成、純度和化學均勻性;母材的成分、性質和表面的潔凈度;液態焊料的表面張力;釬焊溫度、氣氛、助焊劑的活性;液態焊料表面膜的組成、結構和性能等。This paper analyzes the cause of small concaves around the welding seam in the long rail of guangzhou metro line 2, and presents preventive measures, such as increasing the under layer of the rail, limiting the weld seam, lowering the welding temperature etc
摘要結合廣州地鐵2號線接觸焊焊接長鋼軌的實踐,分析了產生焊頭表面小凹痕的原因,提出改變墊高鋼軌的方式、縮小正火范圍、降低正火溫度、限制接頭錯牙量等預防措施。What ' s more, the application of tc11 two phase alloys to the compress disk of areoengine alredy is relatively mature, and tc11 alloy may work safely for very long time below 500 c. ti3al matrix alloy and ( a + b ) two phase alloy is connected by weld. the request of the temperature and stress can be satisfied by dual alloy disk with isothermal forged ( or hot die forging )
選用ti _ 3al基合金tac - 1b和tc11兩相鈦合金用焊接工藝連接起來,通過熱模鍛或等溫鍛鍛造和不同的變形熱處理制度,製造出雙合金盤可以滿足溫度、應力對盤件的要求。In the interface an interdiffused layer with multphases would be formed during the process of welding or operation at elevated temperature. because of so much difference between the interdiffused layer and the original interface layer, it would influence the welding strength severely
在焊接過程中以及經過較高使用溫度的長時間使用后,鈮合金同不銹鋼界面會產生材料組分元素的互擴散,形成互擴散層,互擴散層的性能與原始界面的性能有較大差別,影響焊接強度。But there are some technical difficults for the welding of aluminium alloy such as some broken bits being easily found, a large welding distortion can happen easily, hard to distinguish the difference between the solid metal and liquid metal colour, hard to control the temperature, a lot of air holes can be seen in the welding line and so on
但是鋁合金熔化焊時的技術難點在於:焊接時易引起夾渣,焊接變形大,金屬的固態和液態的色澤不容易區別,焊接操作時控制溫度困難,容易產生氣孔等等。如果焊前清理工作不是很好,檢測氣孔往往超標。The planeness and integrality of the flier - plate were ensured effectively by exerting restrictive pressure, controlling heating and cooling rate, lowering welding temperature or reducing welding time as much as possible, etc. theoretical model of creating quasi - isentropic compression via 93w - ofc - tc4 - a1 - mb2 system flier - plate with graded wave impedance was established, and numerical simulation of the impact process was then carried out
採取施加外部機械力、控制升降溫速率以及盡量降低焊接溫度或減少焊接時間(防止脆性金屬間化合物的過度增長)等措施,確保了焊接接頭的平整性和界面結構的完整性。建立起梯度飛片擊靶的理論模型,對93w - ofc - tc _ 4 - al - mb _ 2系波阻抗梯度飛片的擊靶過程進行了數值模擬計算。Seat rings are long to compensate for temperature fluctuations and are seal - welded. seating faces are hardfaced with stellite 6, ground and lapped to mirror finish
閥座環較長,並且是密封焊接的,能夠補償溫度波動。閥座面用鎢鉻鈷合金6硬化,研磨和層疊為鏡面光潔度。Finite element method ( fem ) was used to simulate thermal and vibration problems in stacked - die csp assembly. finite element models and apdl programes were built in ansys to conduct thermal, thermal - mechanical and vibration analysis. the aim of these researches were trying to find some possible reasons and trends which affect the reliability of stacked csp / bga assembly and give some useful suggestions for the packaging design
本論文正是針對以上情況,以採用引線鍵合工藝的三維疊層csp / bga封裝(裸晶元疊裝)為研究對象,在有限元分析軟體ansys中建立相關的有限元模型,編制了相應的apdl參數化分析程序,進行了溫度場分析、熱循環加載下的snpb合金焊點疲勞分析和實裝pcb板的振動模態分析。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。Combining cae / capp and welding techniques, we construct the mathematical model of 16mnr welding temperature field using theory of welding heat - conduction, then validate it by experiments
將cae / capp技術和焊接技術相結合,應用焊接傳熱理論首先建立了16mnr焊接溫度場數學模型及焊接熱循環的特徵參數模型,並通過實驗驗證了該數學模型正確的。In the five key factors of solder ball alloy, solder paste alloy, peak temperature, the time above liquidus and soldering environment, the fore four factors are more important than soldering environment to the solder joints reliability
在焊球合金、焊料合金、峰值溫度、液相線以上時間和焊接環境五個關鍵因素中,前四項對焊點可靠性比較重要,焊接環境對焊點可靠性的影響不很顯著。I am using an alloy for chip attach that has a liquidus of 2900c ( sn10 / pb88 / ag2 ), what do you offer for this application
我正在貼片應用中使用錫10 /鉛88 /銀2合金的焊錫膏,融點溫度是2900c ,有適合這種應用的無鉛錫膏嗎?Q : i am using an alloy for chip attach that has a liquidus of 2900c ( sn10 / pb88 / ag2 ), what do you offer for this application
我正在貼片應用中使用錫10 /鉛88 /銀2合金的焊錫膏,融點溫度是2900c ,有適合這種應用的無鉛錫膏嗎?Thermowells for screw or welded fitting are available in copper alloy, steel and stainless steel materials
有銅合金的鋼質的和不銹鋼材料的旋入式和焊接式溫度計套管。The effects of the tested condition, e. g. environment humidity, drying temperature, dew point of shielding gas, etc, on diffusible hydrogen content of the domestic electrodes for welding mild and low alloy steels is analyzed and compared with that of the foreign electrodes
摘要採用水銀法研究了環境濕度、烘乾溫度、保護氣體露點等測試條件對焊縫擴散氫含量的影響,分析了我國碳鋼及低合金鋼焊條中的擴散氫含量,並且與國外焊條的擴散氫含量進行了對比。Measurement of the temperature field of aluminum alloy of different thickness on laser welding with high - temperature thermocouple, analysis of influences with different position, power. speed, with metal powder, thickness were evoluated in this paper
摘要利用高溫熱電偶檢測異厚度鋁合金激光拼焊時的溫度場,分析不同檢測位置、激光功率、焊接速度、添加粉末、板材厚度對溫度場的影響。Through appearance testing, x 射線 testing and temperature cycling testing, the reliability of mixed solder joints and 無 鉛 solder joints which formed under various process parameters was assesed
通過對不同工藝參數下形成的混合焊點和無鉛焊點進行了外觀檢測、 x射線檢測和溫度循環測試。分享友人