鋼中低含量 的英文怎麼說
中文拼音 [gāngzhōngdīhánliáng]
鋼中低含量
英文
simnn-
The results indicated that the dimension, shape and purity of base material could meet the functional demand of solid lubricant ; the thermal decomposition temperature of ptfe resin exceeds 400 c, but organic and inorganic packing filler added in ptfe made the water absorption rate of composite material increased, melting temperature and decomposition temperature decreased, in the meanwhile oxidative decomposition reaction was accompanied ; polar groups such as c = o, c - o - c and so on in the carbon fiber surface is advantageous to increase compatibility with other components and interlayer shearing strength ; uniform design experimental method could help to find the relationship between formula and frictional property by relatively small tests. the developing trend of each formula ' s friction coefficient could be showed by fitting curve ; the friction coefficient with no copper powder or graphite in formula was relatively big. this fact showed that copper powder and graphite should be used cooperatively ; it was found that when the ratio of copper powder to graphite by weight is 15 : 60, 30 : 30 - 40 and 60 : 15 - 30 respectively, the friction coefficient was relatively small. the degree of crystallinity of pure ptfe reached maximum by air cooling and the abrasion loss also reached maximum among three ones ; at the same time, the abrasion loss of solid lubricant sample was also the biggest among three ones ; when solid lubricant matched with 45 # steel axle or gcrl5 steel axle, lubricant transfer film could be formed on metal surface, thus direct contact between the surface of metal friction pair rings was reduced. their working life was elongated extremely ; there was mainly much graphite, a little ptff, moo3, feso4, cus and so on in lubricant transfer film
試驗結果表明：所選原料的尺寸、形狀及純度可滿足固體潤滑劑的性能要求；聚四氟乙烯樹脂熱分解溫度超過400 ，但在ptfe中加入無機填料會使復合材料吸水率提高，熔融溫度及分解溫度降低，且伴有氧化分解反應；碳纖維表面含有c = o及c - o - c等極性基團，有利於提高其與其它組分的相容性，提高層間剪切強度；均勻設計試驗方法能夠用較少的試驗次數找出配方與摩擦性能間的關系，擬合曲線基本能表示各配方的摩擦系數發展趨勢；配方中不加銅粉或不加石墨，其摩擦系數均較高，說明銅粉和石墨應該配合使用；當銅粉15份、石墨60份時，銅粉30份、石墨30 - 40份時，銅粉60 、石墨15 - 30份時，摩擦系數均具有較低值；純聚四氟乙烯樹脂在空氣冷卻時結晶度最大，磨損量也是三者中最大的；同時，固體潤滑劑試樣在空氣冷卻時的磨損量也是三者中最大的：不論是固體潤滑劑與45 #鋼軸配副或是固體潤滑劑鑲嵌入銅套后與gcr15鋼軸配副，在金屬表面均可形成潤滑轉移膜，從而減少金屬摩擦副表面間的直接接觸，大大延長其使用壽命;轉移膜中主要含有較多的石墨、少量聚四氟乙烯、 moo 。It is a very important problem for steel - iron - making enterprise to remove the sulfur efficiently, improve the quality of steel and design the new products, however, the traditional iron water pre - desulfuration method based on manual control causes the instability in the process, which harms the quality of steel and increases the production cost
在鋼鐵企業中，如何降低鋼材中的硫含量，提高鋼材質量，開發新品種是鋼鐵生產的一個重要課題。傳統的鐵水預脫硫主要採用人工控制，難以保證脫硫操作的穩定性，導致鋼產品質量波動大，脫硫成本增加。The characters and the stability of volume of air quench steel slag have been summarized first in this paper. the air quench steel slag has good physical and chemistrial properties, and can be used to prepare concretes as aggregate. at the same time, theoretical analyzation and experiment results also show that f - cao content is very low, and mgo exists in the ro phase, so the volume of air quench steel slag is stabile
本文首先講述了風淬鋼渣的性質及其體積穩定性，指出風淬鋼渣具有良好的物理和化學性能，適合於作集料來配製混凝土；同時從理論上分析並通過試驗驗證表明，由於風淬鋼渣中游離cao含量很低，而mgo主要以ro相形式存在，不存在體積安定性不良的問題。Method of quantitative electron probe microanalysis on low contents of si and mn in steels
鋼中低含量si mn的電子探針定量分析方法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。Iron and steel. methods of determination of the non metallic inclusion content of wrought steels. part 1 : macroscopic methods
鋼鐵.鍛鋼中非金屬雜質含量的測定方法.第1部分:低倍法Unalloyed steel - determination of low carbon content - part 2 : infrared absorption method after combustion in an induction furnace with preheating
非合金鋼.低碳含量測定.第2部分:在感應爐中燃燒Standard test method for spectrographic determination of boron in carbon and low alloy steel by the point - to - plane technique
用點對面技術測定碳素鋼和低合金鋼中硼含量的光譜測定的測試方法Technology discussion on reducing f content in iron concentrate at ore - dressing plant at baotou steel
包鋼選礦廠降低鐵精礦中氟含量的技術攻關This low carbon content in cast steel does not allow the carbon to form as free graphite resulting in a laminate type of structure
鑄鋼中的低含碳量使得作為游離石墨存在的碳不會形成結構薄片。Standard test method for determination of low levels of antimony in carbon and low - alloy steel by electrothermal atomic absorption spectrometry
用電熱原子吸收光譜測定法測定碳和低合金鋼中銻低含量的標準試驗方法分享友人