正火鋼 的英文怎麼說
中文拼音 [zhēnghuǒgāng]
正火鋼
英文
air hardening steel-
On the basis of our previous forging equipment, our company has purchased another fast forging hydraulic equipment of 250 tons, with which we can forge various roughcast of special sections below 20 tons, as well as heat
我公司在原有的鍛打設備外，又購進一臺250噸的快速鍛打液壓設備，可?根據客戶要求鍛造20噸以下的各種異型鋼材毛坯，還可?客戶提供退火正火回火淬火等熱處理服務。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。The principle of multi - method and multi - parameter is suggested, which should be followed during characterizing microstructures of alloy steels by ultrasonic not method. ultrasonic velocity ( c, ) of transformation products through different heat processes of three steels was measured by high - accuracy ultrasonic installation. the velocity of quenched microstructure of 38crmoal is the lowest, which gradually increases with increasing tempering temperature between 200 ? and 650 ? after quenching process
利用ti - 40n高精度超聲波測厚儀，研究了超聲波在不同鋼種、不同熱處理轉變產物中的超聲波速度c _ 1 : 38crmoal鋼淬火組織c _ 1最小，淬火后在200 650范圍內進行回火處理時，隨回火溫度的升高， c _ 1逐漸升高， hrc與c _ 1之間具有較好的相關性；正火組織的c _ 1介於淬火后中溫回火及高溫回火產物組織的c _ 1之間。Specification for hot - rolled flat products made of high yield strength steels for cold forming - delivery conditions for normalized or normalized rolled steels
冷成型高屈服強度鋼熱軋制的扁平鋼產品.第3部分:正火鋼和正火軋制鋼的交付狀態Flat products made of steels for pressure purposes - part 3 : weldable fine grain steels, normalized
壓力容器用扁平鋼軋材.第3部分:正火處理的可焊細晶粒鋼Specification for flat products made of steels for pressure purposes - weldable fine grain steels, normalized
壓力容器用的扁平鋼軋材規范.經正火處理的可焊細粒鋼Based on ladle refining, wide flat anvil forge with great forging ratio, heat treatment process of " normalizing + spheroidizing + diffusion hydrogen ", the cold roll blank has been forged succesfully, and the percent of pass is up to 90. 5 %
採用鋼包精煉爐冶煉、寬平砧大壓下量鍛造、 「正火+球化+擴氫」的熱處理工藝，成功製造了冷輥坯，合格率達90 . 5 。Abstract : based on ladle refining, wide flat anvil forge with great forging ratio, heat treatment process of & quot; normalizing + spheroidizing + diffusion hydrogen & quot;, the cold roll blank has been forged succesfully, and the percent of pass is up to 90. 5 %
文摘:採用鋼包精煉爐冶煉、寬平砧大壓下量鍛造、 「正火+球化+擴氫」的熱處理工藝，成功製造了冷輥坯，合格率達90 . 5 。The hook tooth with a positive rake angle can be used for all kinds of steel, especially for long - chip and hard - to - cut materials, for example construction steel and hardened steel, as well as high alloy materials
帶有正前角的鉤形齒能用於所有種類的鋼材，尤其適用於長片和難以鋸切的材料，例如結構鋼、粹火鋼以及高合金材料。Hot - rolled products of structural steels - part 3 : technical delivery conditions for normalized normalized rolled weldable fine grain structural steels
結構鋼熱軋產品.第3部分:正火正火軋制的可焊接細晶粒結構鋼交貨技術條件Process of normalizing and annealing of iron and steel
鋼鐵的正火與退火工藝The variation principle of wave velocity in different microstructures of 40cr is similar with that of 38crmoal. the velocity in quenching and low temperature tempering structure of gcrlssimn is much lower than the velocity in normalizing, annealing and high temperature tempering structure
Gcr15simn鋼淬火+低溫回火組織的c _ 1遠大於正火、退火及淬火+高溫回火組織的c _ 1 ；正火、退火及淬火+高溫回火組織的c _ 1比較接近。The difference among the elasticity modulus of various microstructures is probably the main reason, which caused the experiment results above. under the same experiment conditions, such as sample shape, size, surface roughness, establishment of testing system, pressure on the probe, and thickness of coupling medium, the variety of relative attenuation coefficient ( or ) in different heat treatment samples is measured and compared by measuring the attenuation obtained from the cylindrical surface of column. the result is as following : for 40cr and 38crmoal, a mt < az mq < a s < a p + f ; for gcrlssimn, a mt < a annea < s < a p + f ; and a increased with the increasing of frequency
在保證試樣形狀、尺寸、表面光潔度、系統參數設置、施加在探頭上的壓力以及耦合層厚度等測試條件一致的情況下，利用棒材圓柱面測衰減系數法，分別測定並比較上述不同熱處理試樣相對衰減系數的變化情況，得到的實驗結果是：對於40cr及38crmoal鋼， _ （低溫回火） （淬火） _ （高溫回火） _ （正火） ；對于gcr15simn鋼， _ （低溫回火） _ （退火） _ （高溫回火） _ （正火） ；且隨著頻率的提高，衰減系數均呈現增加的趨勢。According to structural characteristics of multi - phased alloy steels and the properties of ultrasonic propagation, microstructures characterization with different heat treatment processes ( normalizing, quenching / annealing, quenching plus low tempering, quenching plus high tempering ) for three steels ( 40cr, 38crmoal, gcrlssimn ) was studied experimentally by using ultrasonic methods. ultrasonic velocity, relative attenuation coefficient, and power spectral analyses were researched on the same samples respectively, on the basis of theory and experiment, the sensitivity and other characterizations of the three methods used to distinguish different microstructures were compared
根據具有多種相結構合金鋼不同熱處理轉變產物的組織特點，以及超聲波在其中的傳播規律，利用超聲波速度、相對衰減系數以及功率譜分析三種方法，對三種鋼（ 40cr 、 38crmoal及gcr15simn ）不同熱處理（正火、淬火退火、淬火+低溫回火及淬火+高溫回火）轉變產物的顯微組織進行了超聲表徵研究。Hot rolled products of structural steels - part 3 : technical delivery conditions for normalized normalized rolled weldable fine grain structural steels ; german version en 10025 - 3 : 2004
結構鋼制熱軋產品.第3部分:正火正火軋制可焊細粒結Standard specification for pressure vessel plates, alloy steel, 9 percent nickel, double - normalized and tempered
壓力容器用經二次正火及回火處理的含9鎳的合金鋼板標準規范Normalized and tempered steel
正火及回火鋼Flat products made of steels for pressure purposes - part 3 : weldable fine grain steels, normalized ; german version en 10028 - 3 : 2003
壓力容器用扁平鋼軋材.第3部分:經過正火處理的可焊細Standard specification for normalized high - strength low - alloy structural steel plates
正火的高強度低合金結構鋼板標準規范Normalizing and annealing of steel parts
鋼件的正火與退火分享友人